ZL50輪式裝載機(jī)工作裝置設(shè)計(jì)含7張CAD圖,zl50,輪式,裝載,機(jī)工,裝置,設(shè)計(jì),cad ZL50輪式裝載機(jī)工作裝置設(shè)計(jì)含7張CAD圖需要咨詢購買全套設(shè)計(jì)請加QQ1459919609-圖紙預(yù)覽詳情如下：ZL50輪式裝載機(jī)工作裝置設(shè)計(jì)任務(wù)書.docZL50輪式裝載機(jī)工作裝置設(shè)計(jì)開題報(bào)告.docZL50輪式裝載機(jī)工作裝置設(shè)計(jì)說明書.doc外文翻譯搖臂a1.dwg文件清單.txt活塞-A3.dwg活塞桿-A3.dwg液壓缸-動(dòng)臂-A1.dwg液壓缸-搖臂A1.dwg裝載機(jī)工作裝置-A0.dwg設(shè)計(jì)副本連桿-A2.dwgZL50輪式裝載機(jī)工作裝置設(shè)計(jì) Design of working device of ZL50 wheel loader摘 要裝載機(jī)是一種在各種工程中都收到了廣泛的應(yīng)用的集鏟土，運(yùn)輸為一體的機(jī)械，當(dāng)裝載機(jī)進(jìn)行作業(yè)的時(shí)候，工作裝置在機(jī)器的運(yùn)動(dòng)的帶動(dòng)下進(jìn)行裝載作業(yè)，以及提升作業(yè)，運(yùn)輸作業(yè)和卸載作業(yè)。裝載機(jī)具有在作業(yè)速度，效率，機(jī)動(dòng)性，操作性等方面相對于其他作業(yè)機(jī)械的優(yōu)勢，對于加快工程建設(shè)速度，減輕勞動(dòng)強(qiáng)度，降低工程本有 的作用， 為了 機(jī)械 工中的 要裝 。裝載機(jī)在在工程機(jī)械中的用 以 是 的廣泛，在工程中 以用 情， 如鏟裝 運(yùn) 和卸載 ， 裝 的對方 的時(shí)候， 以用 對他?進(jìn)行￠ 作業(yè)，在￡?作業(yè)中 以輕度￡?￥? §土。currency1外，'面 ￠ 時(shí)，“￠'面 以 到，當(dāng)其他機(jī)械的運(yùn)動(dòng)需要??時(shí)， 以用 對其進(jìn)行??作業(yè)。對一?其他用 ，fi如fl 了–方裝?的設(shè) ，? 以· fl 其他的任務(wù)，如 運(yùn)??，??等?！?設(shè)計(jì)…用‰進(jìn)的 設(shè)計(jì)方 ，對”種輪式裝載機(jī)工作裝置進(jìn)行了?體設(shè)計(jì)到 `件設(shè)計(jì)?！湟??輪式裝載機(jī)工作裝置的ˉ? `件，如鏟˙ 連桿機(jī)¨以及 ˙?缸 ?升?缸等， 對 要 件進(jìn)行了?度 強(qiáng)度 ??！?ˇ： 裝載機(jī)— 機(jī)械 — 工作裝置AbstractThe loader is a kind of in various projects have received wide application in soil shovel, transportation as one of the machinery, when the operation of the loader, working device for loading operation in the movement of the machine drive, and improve the operation, transportation and unloading operations. The loader has the operating speed, efficiency, flexibility, relative to other operating machinery operation advantage and so on, to speed up the construction speed and reduce labor intensity, has a significant role to reduce the project cost, which has become the important equipment in the construction of a modern mechanized.Loading machine in use in engineering machinery is very extensive, in engineering can be used to do a lot of things, such as loading cargo, cargo handling and unloading of goods, when other bulk material not neat, can also be used for their smooth operation, the operation can also dig in mild rock mining and hard soil. In addition, when the ground is rough, scraping the ground can also be done, and when other mechanical movements need traction, it can also be used for traction operations. For some other purposes, if you replace the equipment in front of the assembly, you can finish more of the other tasks, suchas handling timber, steel pipes and so on.The design uses advanced modern design methods, the wheel loader working device for the overall design of the parts design. It mainly includes the key components of the wheel loader, such as bucket, connecting rod mechanism, bucketcylinder, lifting cylinder, etc. the stiffness and strength of the important parts are analyzed.Key words: loader; mechanization; working device1. – 11.1 輪式裝載機(jī) 11.1.1 裝載機(jī) 11.1.2 裝載機(jī)的用 11.2 輪式裝載機(jī)應(yīng)用 11.2.1 外輪式裝載機(jī) 11.2.2 輪式裝載機(jī) 22 裝載機(jī)工作裝置?體設(shè)計(jì) 32.1 工作裝置的?體 ¨ ?置 32.2 工作裝置連桿機(jī)¨的 ¨ 式 a 42.3 工作裝置 度的計(jì) 52.4 工作裝置?體設(shè)計(jì)53 ZL50 裝載機(jī)工作裝置設(shè)計(jì) 53.1 工作裝置的設(shè)計(jì)要 53.1.1 工作裝置工作性?53.1.2 對工作裝置的要 53.2 鏟˙設(shè)計(jì) 63.2.1 鏟˙的 ¨ 式 63.2.2 鏟˙的 ? 73.2.3 鏟˙?面 和o本 73.2.4 鏟˙ ?的計(jì) 103.3 工作裝置連桿 設(shè)計(jì) 113.3.1 機(jī)¨ ?113.3.2 ? 設(shè)計(jì)123.3 連桿 運(yùn)動(dòng) ? 163.4 工作裝置 ? ?及強(qiáng)度?? 204 液壓缸設(shè)計(jì) 253.5.1 液壓缸的??和 ¨ 253.5.2 液壓缸o(hù)本 設(shè)計(jì) 25文 2930用于設(shè)置和放置裝載機(jī)的工具的工具載體以及設(shè)置和放置工具的方法本發(fā)明公開了一種工具載體，其具有復(fù)雜程度低、部件多樣性低、可靠性高的鎖定裝置。通過完全自動(dòng)化的鎖緊過程，工具架上的工具的設(shè)置大大簡化了操作者或司機(jī)，因?yàn)榧炔浑x開機(jī)艙，以鎖定工具。在工具設(shè)置過程中由工具啟動(dòng)和保持裝置的驅(qū)動(dòng)確保鎖止裝置僅在安裝工具時(shí)使用。有效地避免了由于振動(dòng)或由刀架或前裝載機(jī)的移動(dòng)而使鎖進(jìn)入鎖定位置而不設(shè)置工具的錯(cuò)誤運(yùn)動(dòng)。本發(fā)明的聲明：1．工具包括：鎖工具載體包括上橫撐和下交叉支撐的至少一個(gè)檔板連接和至少一個(gè)支撐板，其中至少有一個(gè)輪廓板和至少一個(gè)支撐板接合和鎖定工具包括緊固凸耳的刀具夾持區(qū)之間的區(qū)域；包括手動(dòng)運(yùn)行的鎖從鎖定位置向解鎖位置和第一導(dǎo)向、鎖定部分連接到一個(gè)第二導(dǎo)向、鎖定部分手柄鎖，其中第二導(dǎo)向、鎖定部分包括彈簧連接到一個(gè)磁盤用于接合刀架和鞋跟；和設(shè)置夾持裝置支持的工具載體包括：唱一首旋轉(zhuǎn)桿連接到一個(gè)第二旋轉(zhuǎn)桿圍繞旋轉(zhuǎn)軸和彈簧連接到工具載體和第一旋轉(zhuǎn)桿，其中第一旋轉(zhuǎn)杠桿進(jìn)一步包括端接合工具的緊固凸耳和第二旋轉(zhuǎn)杠桿進(jìn)一步包括端接合的腳跟，保持在打開位置鎖定2．聲明 1 中的工具鎖，其中，第二旋轉(zhuǎn)杠桿進(jìn)一步包括一個(gè)配置成從事腳跟，以保持在解鎖位置鎖的結(jié)束。3．聲明 1 中的工具鎖，其中至少一個(gè)配置板和至少一個(gè)支撐板進(jìn)一步包括用于引導(dǎo)鎖的鉆孔。4．聲明 1 的工具鎖，其中至少一個(gè)配置板和至少一個(gè)支撐板之間的區(qū)域限定了用于接合和鎖定工具的工具保持區(qū)。5．聲明 1 的工具鎖，其中手柄還包括連接在一端上的兩個(gè)連接到另一端的連接板的兩條腿。6．聲明 5 的工具鎖，其中第二引導(dǎo)和鎖定部分通過連接板中的鉆孔延伸形成兩條腿中的一個(gè)。7．聲明 6 的工具鎖,其中第一個(gè)指導(dǎo)和鎖定部分連接的連接板的對面兩條腿。8．聲明 1 的工具鎖,其中第一個(gè)旋轉(zhuǎn)桿進(jìn)一步包括結(jié)束由工具激活鎖進(jìn)入鎖定的位置。9．自動(dòng)鎖定一個(gè)工具一個(gè)裝載機(jī)的方法包括:將一個(gè)句柄鎖的地方設(shè)置和設(shè)備支持刀架在一扇不加鎖的位置,操縱工具載體進(jìn)行懸鉤子的工具包括一個(gè)緊固接頭;進(jìn)一步操縱刀架,緊固接線片與設(shè)置和夾具進(jìn)行交互,這樣鎖保護(hù)工具的刀架在鎖定位置,其中鎖包含第一次指導(dǎo)和鎖定部分連接到第二個(gè)指導(dǎo)和鎖定部分,其中第二指導(dǎo)和鎖定部分由一個(gè)彈簧連接到一個(gè)磁盤從事刀架和腳跟保持鎖鎖的位置;在設(shè)置和夾具由第一旋轉(zhuǎn)桿連接到第二個(gè)旋轉(zhuǎn)桿的轉(zhuǎn)動(dòng)軸和一個(gè)彈簧耦合刀架框架和第一個(gè)旋轉(zhuǎn)桿;其中緊固接頭與結(jié)束的第一旋轉(zhuǎn)桿旋轉(zhuǎn)第一旋轉(zhuǎn)桿的轉(zhuǎn)動(dòng)軸從而第二旋轉(zhuǎn)桿旋轉(zhuǎn),進(jìn)而釋放跟刀架的工具。10．聲明的方法,其中刀架由刀架框架包括一個(gè)橫拉條上部和更低的肋板連接的至少一個(gè)側(cè)面板和至少一個(gè)支撐板。描述:技術(shù)領(lǐng)域刀架(18)披露本有一個(gè)鎖緊裝置(46)與低程度的復(fù)雜性,多樣性較低的部分,和高度的可靠性。通過完全自動(dòng)鎖定過程,工具的設(shè)置(21)刀架(18)是大大簡化運(yùn)算符或司機(jī),因?yàn)樵贈(zèng)]有離開小屋為了鎖工具。的驅(qū)動(dòng)設(shè)置和夾具(50)的工具(21)的設(shè)置工具(21)確保鎖緊裝置(46)只有一個(gè)工具(21)也成立。錯(cuò)誤的運(yùn)動(dòng)的鎖緊裝置鎖定位置由于震動(dòng)或刀架的運(yùn)動(dòng)(18)或前端裝載機(jī)(14)沒有設(shè)置工具有效地避免。背景方法以裝備加載車輛或加載器,特別是農(nóng)業(yè)拖拉機(jī)、裝載機(jī)使用但也施工車輛如輪式裝載機(jī)或伸縮裝載機(jī)用不同的工具。因此,例如,可以使用叉車,長矛,觸手,或獨(dú)家新聞作為加載工具。所謂的工具通常是連接到工具運(yùn)營商或由他們提供相應(yīng)的設(shè)備。工具運(yùn)營商從而通常堅(jiān)決與擺臂的前端或裝載汽車的熱潮,其中控股設(shè)備,構(gòu)建工具載體,是一個(gè)接口的工具,使工具,一方面,可互換或可替換的,然而,另一方面與刀架也被連接在一個(gè)適當(dāng)?shù)膿?dān)保方式?？毓稍O(shè)備從而通常有工具持有人建立了相應(yīng)的工具和一個(gè)鎖的工具是刀架鎖后,已經(jīng)成立。這樣的鎖定裝置從藝術(shù)的狀態(tài),作為一個(gè)規(guī)則,繁瑣的和昂貴的。針對這一點(diǎn),提出一個(gè)解決方案的根本目標(biāo)是用一個(gè)簡單和低成本的鎖定裝置,是一種選擇,由刀架的藝術(shù)的狀態(tài)?？偨Y(jié)刀架披露的鎖有一個(gè)鎖緊裝置和一個(gè)低程度的復(fù)雜性,多樣性較低的部分,和高度的可靠性。工具的自動(dòng)設(shè)置的刀架是大大簡化運(yùn)算符或司機(jī),因?yàn)樵贈(zèng)]有離開小屋為了鎖工具。這意味著節(jié)省時(shí)間。鎖緊裝置的結(jié)構(gòu)簡單,便于安裝部分的低多樣性的生產(chǎn),從而也有助于減少成本。建立并控股的驅(qū)動(dòng)設(shè)備的工具的設(shè)置工具確保激活鎖只有一個(gè)工具也是成立的。鎖定其鎖定位置的錯(cuò)誤運(yùn)動(dòng)由于震動(dòng)或運(yùn)動(dòng)的刀架或前端裝載機(jī)沒有設(shè)置工具有效地避免。鎖可以通過處理位于刀架或一側(cè)向外延伸的載體工具。拉著把手,鎖可以移動(dòng)的鎖定位置。通過隨后的輕微的處理,然后進(jìn)入解鎖位置處理,支持鎖上刀架框架。鎖可以橫向拉伸彈簧。彈簧可以,例如,被設(shè)計(jì)為一個(gè)螺旋彈簧鎖的桿狀區(qū)域支持。螺旋彈簧是最好支持一邊,反對停止固定鎖,另一方面,對刀架框架,這鎖的橫向運(yùn)動(dòng)(即運(yùn)動(dòng)的鎖刀架的一側(cè)),螺旋彈簧被壓縮和預(yù)緊力是生成的。螺旋彈簧和停止設(shè)計(jì)和坐落在這樣一種螺旋彈簧沒有借口在鎖定位置,或只有一個(gè)最小的一個(gè),它的最大驕傲在開啟的位置。鎖緊裝置可以形成以這樣一種方式,在處理方面,它有一個(gè)設(shè)置和持有部分和第一次指導(dǎo)和鎖定部分面向并行。為此,鎖桿部分處理方面是面向彼此平行,彼此相連,通過交聯(lián),在結(jié)束處理,維護(hù)在一個(gè)特定的距離。此外,邊處理,鎖有一個(gè)第二指導(dǎo)和鎖定部分對齊橫向第一指導(dǎo)和鎖定部分。鎖可以,例如,形成以這樣一種方式建立和持有部分的處理有相應(yīng)的彎曲過程結(jié)束,因?yàn)樗^續(xù)刀架的相反,這兩個(gè)開放的鎖共同指向一個(gè)方向,是一致的。設(shè)置和設(shè)備包括第一旋轉(zhuǎn)桿和第二個(gè)旋轉(zhuǎn)桿,這是支持一個(gè)共同的軸旋轉(zhuǎn),所以相對于另一個(gè)是不動(dòng)的,其中第一和第二旋轉(zhuǎn)杠桿可以通過一種工具旋轉(zhuǎn)。設(shè)置和設(shè)備是由兩個(gè)旋轉(zhuǎn)杠桿擴(kuò)展形成的相應(yīng)的軸旋轉(zhuǎn),在旋轉(zhuǎn)軸支撐在一個(gè)較低的連接網(wǎng)站工具在刀架框架或緊固接線片在這一領(lǐng)域,形成的工具,通過它鎖推為了與刀架框架,突出或項(xiàng)目。例如,一個(gè)旋轉(zhuǎn)桿可以作為一種觸發(fā),可以偏轉(zhuǎn)或激活,因此旋轉(zhuǎn)緊固接頭凸入工具框架當(dāng)工具設(shè)置。由此產(chǎn)生的轉(zhuǎn)動(dòng)軸的旋轉(zhuǎn)運(yùn)動(dòng)相應(yīng)轉(zhuǎn)移到第二旋轉(zhuǎn)桿,這樣第二旋轉(zhuǎn)桿與設(shè)置和持有的鎖。第一旋轉(zhuǎn)桿從而配備比第二旋轉(zhuǎn)桿長力臂,自前必須擴(kuò)展到指導(dǎo)和鎖的鎖,緊固接線片的工具是鎖定的設(shè)置后進(jìn)行的;另一方面,第二個(gè)旋轉(zhuǎn)桿只延伸到設(shè)置和持有的鎖,這是位于靠近轉(zhuǎn)動(dòng)軸。此外,彈簧是提供與刀架框架,最好,與扶輪杠桿之一。在這里,也可以使用一個(gè)彈簧與轉(zhuǎn)動(dòng)軸連接。至關(guān)重要的是,一個(gè)彈簧的借口被創(chuàng)建在偏轉(zhuǎn)的第一旋轉(zhuǎn)桿緊固接線片,所以當(dāng)刪除緊固接線片的接觸面積,設(shè)置和設(shè)備(第一和第二旋轉(zhuǎn)杠桿)法案,要求下,對建立和持有的鎖,或者與自負(fù)。上述類型的刀架是特別適合使用在裝載機(jī),如前端裝載機(jī)、輪式裝載機(jī)、,特別是頻繁變化的工具,不同的加載任務(wù)是必需的。建立一個(gè)相應(yīng)的方法和工具放置工具持有人裝載機(jī)規(guī)定一個(gè)刀架組成一個(gè)刀架框架和一個(gè)鎖緊裝置位于工具載體,與一個(gè)工具被鎖定或?qū)⒈绘i定在刀架橫向移動(dòng)鎖。鎖移動(dòng),放置的工具,從鎖定位置橫向彈簧拉伸鎖定位置,支持鎖上刀架框架或者是停止,在鎖緊裝置由設(shè)置和設(shè)備上面所提到的,被帶到一個(gè)彈簧預(yù)張的位置在工具的設(shè)置在刀架上。期間將解鎖工具的工具載體,建立并控股設(shè)備發(fā)布的緊固接線片的工具,以便建立和保持設(shè)備在要求行動(dòng)起來反對然后釋放鎖和鎖解鎖位置支持刀架框架的建立和保持設(shè)備的彈簧力作用。在這種交互,建立和保持設(shè)備承擔(dān)控股地位和鎖從解鎖位置成橫向彈簧拉伸前鎖定位置。在這個(gè)前鎖定位置,鎖不再支持,和之前一樣,刀架框架上,而是在設(shè)置和設(shè)備。重新設(shè)置的一個(gè)工具,建立并保持設(shè)備再次緊固接頭構(gòu)造偏轉(zhuǎn)的控股地位的工具,把前面提到的,彈簧拉伸位置。自鎖,與此同時(shí),在其鎖定位置,支持建立和保持設(shè)備在開啟位置,而不是在刀架坐標(biāo)系,建立并控股的控股功能設(shè)備取消,釋放鎖,以便釋放鎖帶來的 pre-locking 橫向彈簧力的位置到鎖定位置。借助繪畫的例子顯示了一個(gè)體現(xiàn)的發(fā)明,發(fā)明和其他優(yōu)勢和有利的改進(jìn)和發(fā)展的發(fā)明更詳細(xì)地描述和解釋如下。Tool carrier for setting and placing tools for loaders, and method for setting and placing toolsThe invention claimed is:1. A tool lock comprising: a tool carrier comprising an upper cross brace and a lower cross brace connected by at least one profile plate and at least one support plate, wherein the area between the at least one profile plate and the at least one support plate define a tool holding area for engaging and locking a tool comprising a fastening lug; a lock comprising a handle for the manual movement of the lock from the locked position to the unlocked position and a first guiding and locking section connected to a second guiding and locking section, wherein the second guiding and locking section comprises a spring connected to a disk for engaging the tool carrier and a heel; and a setting up and holding device supported on the tool carrier comprising a first rotary lever connected to a second rotary lever about a rotation axle and a spring coupled to the tool carrier and to the first rotary lever, wherein the first rotary lever further comprises an end configured to engage the fastening lug of the tool and the second rotary lever further comprises an end configured to engage the heel so as to maintain the lock in an unlocked position. 2. The tool lock of claim 1, wherein the second rotary lever further comprises an end configured to engage the heel so as to maintain the lock in an unlocked position. 3. The tool lock of claim 1, wherein the at least one profile plate and the at least one support plate each further comprise a borehole for guiding the lock. 4. The tool lock of claim 1, wherein the area between the at least one profile plate and the at least one support plate define a tool holding area for engaging and locking a tool. 5. The tool lock of claim 1, wherein the handle further comprises two legs connected to a crosslink on one end and connected to a connecting plate on the other end. 6. The tool lock of claim 5, wherein the second guiding and locking section extends through a borehole in a connecting plate to form one of the two legs. 7. The tool lock of claim 6, wherein the first guiding and locking section is connected on the opposite side of the connecting plate from the two legs. 8. The tool lock of claim 1, wherein the first rotary lever further comprises an end activated by the tool to move lock into the locked position. 9. A method for automatically locking a tool to a loader comprising: pulling a handle of a lock to place a setting up and holding device supported on a tool carrier in an unlocked position; maneuvering the tool carrier to engage a suspension hook of a tool comprising a fastening lug; further maneuvering the tool carrier so that the fastening lug interacts with the setting up and holding device such that the lock secures the tool to the tool carrier in a locked position; wherein the lock comprises a first guiding and locking section connected to a second guiding and locking section, wherein the second guiding and locking section comprises a spring connected to a disk for engaging the tool carrier and a heel to maintain the lock in a locked position; wherein the setting up and holding device comprises a first rotary lever connected to a second rotary lever about a rotation axle and a spring coupled to the tool carrier frame and to the first rotary lever; wherein the fastening lug interacts with an end of the first rotary lever to rotate the first rotary lever about the rotation axle thereby rotating the second rotary lever and in turn releasing the heel to secure the tool to the tool carrier. 10. The method of claim 9, wherein the tool carrier comprises a tool carrier frame including an upper cross brace and a lower cross brace connected by at least one profile plate and at least one support plate. Description:TECHNICAL FIELDThe tool carrier (18) disclosed herein has a locking device (46) with a low degree of complexity, a low diversity of parts, and a high degree of reliability. By means of the completely automated locking process, the setting up of the tool (21) on the tool carrier (18) is considerably simplified for the operator or the driver, since neither has to leave the cabin any longer in order to lock the tool. The actuation of the setting up and holding device (50) by the tool (21) during the setting up of the tool (21) ensures that the locking device (46) is used only if a tool (21) is also set up. An erroneous movement of the locking device into its locking position due to vibrations or by a movement of the tool carrier (18) or the front loader (14) without a set-up tool is effectively avoided.BACKGROUNDMethods are known for equipping loading vehicles or loaders, in particular, front loaders for use on agricultural tractors, but also construction vehicles such as wheeled loaders or also telescopic loaders with different tools. Thus, for example, it is possible to use forklifts, lances, grippers, or scoops as loading tools. The tools are usually connected to so-called tool carriers or held by them with corresponding holding devices. The tool carriers are thereby usually firmly connected with the front end of the swing arm or the boom of the loading vehicle, wherein the holding devices, constructed on the tool carriers, are an interface to the tool and make it possible for the tools, on the one hand, to be interchangeable or replaceable and, on the other hand however, to be connected also with the tool carrier in an appropriately secured manner. The holding devices thereby usually have tool holders on which the corresponding tool is set up and a lock with which the tool is locked on the tool carrier after it has been set up. Such locking devices known from the state of the art are, as a rule, cumbersome and expensive.In view of this, the fundamental goal is to propose a solution with a simple and low-cost locking device that is an alternative to that given by the state of the art for a tool carrier.SUMMARYThe lock for a tool carrier disclosed here has a locking device with a low degree of complexity, a low diversity of parts, and a high degree of reliability. The automated setting up of the tool on the tool carrier is considerably simplified for the operator or the driver, since neither has to leave the cabin any longer in order to lock the tool. This means a savings in time. The simple structure of the locking device and the low diversity of parts facilitate the installation in production and thus contribute also to the reduction of costs. The actuation of the setting up and holding devices by the tool during the setting up of the tool ensures that the lock is activated only if a tool is also set up. An erroneous movement of the lock into its locking position due to vibrations or by a movement of the tool carrier or the front loader without a set-up tool is effectively avoided.The lock can be accessible via a handle which is located on the tool carrier or which extends outwards on one side of the tool carrier. By pulling on the handle, the lock can be moved out of its locking position. By a subsequent slight turning of the handle, the handle is then brought into its unlocking position, in which the lock is supported on the tool carrier frame.The lock can be pre-tensioned transversely with a spring. The spring can, for example, be designed as a coil spring which is supported on a rod-shaped area of the lock. The coil spring is preferably supported on one side, against a stop fixed on the lock, and on the other side, against the tool carrier frame, so that with a transversal movement of the lock (that is, with a movement of the lock to one side of the tool carrier), the coil spring is compressed and a pretension force is generated. The coil spring and the stop are designed and situated in such a way that the coil spring does not have a pretension in the locking position, or has only a minimal one, and has its maximum pretension in the unlocking position.The locking device can be formed in such a way that on the handle side, it has a setting up and holding section and a first guiding and locking section oriented parallel to it. To this end, the lock can have rod sections on the handle side which are oriented parallel to one another and which are connected with one another, via a crosslink, on the ends on the handle side and are maintained at a specific distance to one another.Furthermore, on the side opposite to the handle, the lock has a second guiding and locking section which aligns transversely to the first guiding and locking section. The lock can, for example, be formed in such a way that the setting up and holding section on the handle end has a correspondingly bent course, as it proceeds to the opposite of the tool carrier, so that the two open ends of the lock jointly point in one direction and are aligned with one another.The setting up and holding devices comprise a first rotary lever and a second rotary lever, which are supported on a common rotation axle, so as to be nonrotatable relative to one another, wherein the first and second rotary levers can be swiveled by engaging a tool. The setting up and holding devices are accordingly formed by two rotary levers which extend from a rotation axle, wherein the rotation axle is supported in the area of a lower connection site for the tool on the tool carrier frame or in an area in which a fastening lug, which is formed on the tool and through which the lock is pushed in order to connect with the tool carrier frame, protrudes or projects. For example, one rotary lever can function as a kind of trigger and can be deflected or activated and thus swiveled by the fastening lug protruding into the tool frame when the tool is set up. The resulting rotary movement of the rotation axle is correspondingly transferred to the second rotary lever so that the second rotary lever engages with the setting up and holding section of the lock. The first rotary lever is thereby equipped with a longer lever arm than the second rotary lever, since the former must extend into the guiding and locking section of the lock, with which the fastening lug of the tool is locked after the setting up is carried out; on the other hand, the second rotary lever extends only to the setting up and holding section of the lock, which is located closer to the rotation axle.In addition, a spring is provided which is connected with the tool carrier frame and preferably, with one of the rotary levers. Here, it is also possible to use a spring that is connected with the rotation axle. It is essential that a spring pretension be created during a deflection of the first rotary lever by the fastening lug, so that when the fastening lug is removed from the engagement area, the setting up and holding devices (first and second rotary levers) act, under pretension, against the setting up and holding section of the lock or engage with it under pretension.The tool holder of the type described above is particularly suitable for use on a loader, such as a front loader or a wheeled loader, in which, in particular, a frequent changing of the tool for different loading tasks is required.A corresponding method for the setting up and placing of a tool on a tool holder of a loader makes provision for a tool carrier to comprise a tool carrier frame and a locking device located on the tool carrier, with which a tool is locked or will be locked on the tool carrier by a transversely movable lock. The lock is moved, for the placing of the tool, from a locking position into a transversely spring pre-tensioned locking position, in which the lock is supported on the tool carrier frame or is brought there to a stop, wherein the locking device comprises the setting up and holding devices mentioned above, which were brought to a spring-pretensioned position during the setting up of the tool on the tool carrier. During the placing of the unlocked tool by the tool carrier, the setting up and holding devices are released by the fastening lug of the tool, so that the setting up and holding devices under pretension move against the lock and the lock is then released from its unlocking position supported on the tool carrier frame as a result of the spring force of the setting up and holding devices acting on it. In this interaction, the setting up and holding devices assume a holding position and the lock is moved from its unlocking position into a transversely spring pre-tensioned pre-locking position. In this pre-locking position, the lock is no longer supported, as before, on the tool carrier frame, but rather on the setting up and holding devices. With a renewed setting up of a tool, the setting up and holding devices are again deflected by the fastening lug constructed on the tool and brought from the holding position into the previously mentioned, spring pre-tensioned position. Since the lock is located, in the meantime, in its locking position and is supported on the setting up and holding devices and not as in the unlocking position, on the tool carrier frame, the holding function of the setting up and holding devices is cancelled and the lock is released, so that the released lock is brought from the pre-locking position into the locking position by transversal spring force.With the aid of the drawing which shows an embodiment example of the invention, the invention and other advantages and advantageous refinements and developments of the invention are described and explained in more detail below.BRIEF DESCRIPTION OF THE DRAWINGSFIG. 1 is a schematic side view of an agricultural vehicle with a front loader and with a tool carrier located on the front loader;FIG. 2 is a schematic perspective front view of the tool carrier from FIG. 1;FIG. 3 is a schematic side view of a tool for the tool carrier from FIGS. 1 and 2;FIG. 4 is a schematic, perspective front view of the tool carrier from FIG. 1 in a partial representation with a locking device in the locking position;FIG. 5 is a schematic, perspective front view of the tool carrier from FIG. 1 in a partial representation with the locking device in an unlocking position;FIG. 6 is a schematic, perspective front view of the tool carrier from FIG. 1 in a partial representation with the locking device in a pre-locking position;FIG. 7 is another schematic, perspective front view of the tool carrier from FIG. 1 in a partial representation with the locking device in the locking position;FIG. 8 is a schematic, perspective view of a lock of the locking device from FIGS. 4 to 7;FIG. 9 is a schematic, perspective view of the setting up and holding devices of the locking device from FIGS. 4 to 7;FIG. 10 is a schematic, transverse view of the lock on the tool carrier in the area of the setting up and holding devices in the locking position;FIG. 11 is a schematic, transverse view of the lock on the tool carrier in the area of the setting up and holding devices in the unlocking position; andFIG. 12 is a schematic, transverse view of the lock on the tool carrier in the area of the setting up and holding devices in the pre-locking position;DETAILED DESCRIPTION OF THE DRAWINGSFIG. 1 shows a loading vehicle 10 or loader in the form of an agricultural tractor 12 with a front loader 14. The front loader 14 has two loading swing arms 16 which are coupled on the tractor 12 and which extend forwards in the longitudinal direction of the tractor 12. On the front end of the loading swing arms 16, there extends, in the transverse direction to the loading swing arms 16, a tool carrier 18, wherein tool holding areas 20, 20′ are designed on the tool carrier 18, in which a tool 21 in the form of a loading scoop is suspended and locked.The tool carrier 18 and the related details are explained below, with the aid of FIGS. 2 and 4 to 12.The tool carrier 18 comprises a tool carrier frame 22 which was produced in a welded construction and which can be seen in detail in FIG. 2. The tool carrier frame comprises an upper cross brace 24 and a lower cross brace 26. The cross braces 24 and 26 are connected with one another by profile plates 30, 32, 34 aligned vertically and in the longitudinal direction, which are, in accordance with the lower cross brace 26, arranged on both sides of the tool carrier or symmetrical to the center of the tool carrier. Furthermore, support plates 38, which are provided with a borehole 36, are present; they are used together with other boreholes 40, 42, 44, formed in the profile plates 30, 32, 34, to support and guide a locking device 46.The locking device 46 comprises a lock 48 which extends transverse to the tool carrier 18 and which is shown in detail in FIG. 8 and setting up and holding devices 50, which are shown in detail in FIG. 9.The lock 48 is designed in the shape of a rod and has a handle 52, a first guiding and locking section 54 on the side of the handle, a second guiding and locking section 56, opposite the side of the handle, and a setting up and holding section 58. In its course from the setting up and holding section 58 to the opposite side of the tool carrier 18 or to the second guiding and locking section 56, the lock 48 has a course 60 that is bent in such a way that open ends 62, 64 of the lock 48 together point in a direction away from the handle 52 and are aligned with one another. Furthermore, a heel 66 is formed on the lock 48 in the area of the setting up and holding section 58. The heel 66 is formed here by an end of a tube 68, which is guided over a rod-shaped section 70 of the lock 48, on the side of the handle. The handle 52 is formed by a rod which is curved in the shape of a U and which has a short leg 72, a long leg 74, and a crosslink 76, wherein there is a connecting plate 78, which is firmly connected with the two legs 72, 74 of the handle, wherein the long leg 74 extends through a borehole in the connecting plate78 and forms the first guiding and locking section 54 of the lock 48 on the side of the handle. Between the legs 72, 74, the connecting plate 78is connected with the setting up and holding section 58 or the tube 68. The crosslink 76 is used to grip the lock 48, especially if it is brought from a locking position into an unlocking position. Between the curved course 60 of the lock 48 and the heel 66, a stop 80 has been constructed on the lock 48; a coil spring 82, pushed via the (rod-shaped) lock 48, is supported on it and extends in the direction of the handle52. On the end of the coil spring 82, a disk 84 is supported on the lock 48 so it can be displaced, wherein the disk 84 has an inside borehole which is larger than the diameter of the lock 48 but is smaller than the diameter of the coil spring 82. The disk 84 is used as a movable stop which, with an activation of the lock 48 with the tool carrier frame 22, is made to engage, in particular, with the profile plate 30 on the side of the handle. As a consequence of this, the coil spring 82 is compressed against the stop 80 and a pretension force is produced on the lock48, which presses the lock 48 into a locking position in accordance with FIG. 4. As already mentioned, the lock 48 is guided or supported, in a displaceable manner, into the boreholes 36 of the support plate 38, into the boreholes 40, 42 of the profile plates 30, 32, and into the borehole 42 of the profile plate 44 on the side of the handle, on its first guiding and locking sections 54, 56, on both sides of the tool carrier frame 22. The boreholes 36, 40, 42, 44 provided for the guiding or support of the lock 48 have a diameter which is slightly larger than an outside diameter of the lock 48, so that the lock 48 is transversely displaceable (that is, in the transverse direction to the front loader or in the direction of the width of the tool carrier 18), but is radially fixed. The setting up and holding section 58 of the lock 48 is also guided through the profile plates 30, 32, 34 on the side of the handle. To this end, boreholes 86, 88, 90, which have a larger diameter than the ou