CN103802902B - A kind of crawler doer - Google Patents

Abstract

A crawler bulldozer comprises a bulldozing device, an operating room, a crawler running device and a transmission system. The transmission system drives the work of the bulldozer and the operation of the crawler running device. The cantilever controlled by the hydraulic system and the bucket installed on the other end of the cantilever, the crawler belt traveling device is provided with a tension buffer mechanism. The present invention can realize the function of adjusting the tension by using very few parts such as a slide plate, a positioning plate and an electric push rod, and the electric push rod can be operated by remote control, which is very convenient to operate. It can limit the free sliding of the skateboard, and at the same time, when the electric push rod is not working, it can double cooperate to prevent the sliding of the skateboard, so as to prevent the track from loosening.

Description

A crawler bulldozer

technical field

The invention relates to a bulldozer, in particular to a crawler bulldozer.

Background technique

Bulldozer is a kind of common engineering machinery, which is widely used in various earthwork operations. Hydraulic bulldozers are the main mechanical equipment for earth and rock development, widely used in industrial and civil buildings. According to the technical status of hydraulic bulldozers at home and abroad, according to the different walking devices, they are divided into crawler type, tire type and walking type, etc. Bulldozers are easy to cause damage when walking. The overhang of the track exceeds the range of 10-20mm. When the overhang is too large, the track will vibrate and aggravate the wear of the chain rail joints, guide wheels, and sprocket tooth surfaces, which will easily cause chain drop. If the overhang is too small, the driving power will decrease. It increases sharply, and because there are many obstacles on the underground road surface, it is easy for sundries to get stuck in the track and so on.

Therefore it is very important to adjust the tension degree of the crawler bulldozer. The existing device is provided with a relaxation device or a tension device, which are both complicated and troublesome to operate, and the cost is also high.

Contents of the invention

The purpose of the present invention is to provide a crawler bulldozer for the problems of complex structure and inconvenient operation of the existing bulldozing crawler tensioning device. Realize the function of adjusting the tension, and the electric push rod can be operated by remote control, which is very convenient to operate. At the same time, there are positioning bolts fixed on the positioning plate to limit the free sliding of the slide plate. At the same time, when the electric push rod is not working, it can be double-coordinated. Prevent the sliding plate from sliding, so as to prevent the track from loosening.

The present invention is for solving the deficiencies of the above-mentioned technical problems, and the technical scheme adopted is:

A crawler bulldozer comprises a bulldozing device, an operating room, a crawler running device and a transmission system. The transmission system drives the work of the bulldozer and the operation of the crawler running device. The cantilever controlled by the hydraulic system and the bucket installed on the other end of the cantilever. The crawler traveling device includes a tension buffer mechanism, a track, a crawler frame, a guide wheel, a plurality of supporting wheels and a sprocket, and the supporting wheels are located at the guide Between the wheel and the sprocket, the track roller, the idler wheel and the sprocket are installed on the track frame, and the track is set around the idler wheel, the idler wheel and the sprocket, and the idler wheel, the idler wheel and the sprocket form a wheel mechanism , the tension buffer mechanism includes a slide plate, a positioning plate, a positioning bolt, and an electric push rod. Both the positioning plate and the electric push rod are fixed on the track frame. The wheel slides horizontally to achieve the purpose of tensioning the track, and the positioning bolts pass through the sliding plate to fix the sliding plate in the positioning groove on the positioning plate to limit the free sliding of the sliding plate.

The sprocket is connected with the power shaft of the transmission system.

The beneficial effects of the present invention are: the present invention can realize the function of adjusting the tension by using very few components such as a slide plate, a positioning plate and an electric push rod, and the electric push rod can be operated by remote control, which is very convenient to operate, and is equipped with a positioning The bolts can limit the free sliding of the slide plate by being fixed on the positioning plate. At the same time, when the electric push rod is not working, it can double cooperate to prevent the slide plate from sliding, thereby preventing the track from loosening.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is a structural schematic diagram of the crawler belt in the present invention.

Icon marks: 1. bucket; 2. cantilever; 3. operating room; 4. crawler travel device; 401. crawler; 402. roller; 403. sprocket; 404. electric push rod; 405. positioning plate; 406, positioning groove; 407, positioning bolt; 408, slide plate; 409, guide wheel.

Detailed ways

As shown in the figure, the specific implementation method is as follows:

A crawler bulldozer comprises a bulldozing device, an operating room 3, a crawler running device 4 and a transmission system, the transmission system drives the work of the bulldozer and the operation of the crawler running device 4, and the bulldozing device includes one end installed in the operating room 3 The cantilever 2 controlled by the hydraulic system on one side and the bucket 1 installed on the other end of the cantilever 2, the crawler traveling device 4 includes a tension buffer mechanism, a crawler belt 401, a crawler frame, a guide wheel 409, and a plurality of support weights Wheel 402 and sprocket wheel 403, supporting roller 402 is positioned between guide wheel 409 and sprocket wheel 403, supporting roller 402, guiding wheel 409 and sprocket wheel 403 are all installed on the track frame, crawler belt 401 surrounds guiding wheel 409, supporting weight Wheel 402 and sprocket wheel 403 are set, and guide wheel 409, supporting wheel 402 and sprocket wheel 403 form wheel mechanism, and tension buffer mechanism includes slide plate 408, positioning plate 405, positioning bolt 407 and electric push rod 404, positioning plate 405 and the electric push rod 404 are fixed on the crawler frame, the extended end of the electric push rod 404 drives the guide wheel 409 to slide horizontally together by pushing the slide plate 408, and the purpose of tensioning the track 401 is achieved through the horizontal slide of the guide wheel 409, and the positioning bolt 407 is worn through The sliding plate 408 is fixed in the positioning groove 406 on the positioning plate 405 through the sliding plate 408 to limit the free sliding of the sliding plate 405 .

The sprocket 403 is connected with the power shaft of the transmission system.

When the present invention is in use, first check whether the tension degree of the track is qualified, and then the bulldozer can be operated. When tension is required, the positioning bolt 407 needs to be opened to make the slide plate 408 in a sliding state. At this time, the electric push rod is operated, and the electric push rod extends The outlet end continues to protrude to push the slide plate to drive the guide wheel to slide, so that the track is tensioned to achieve the purpose of tensioning. After tensioning, the positioning bolts are installed so that the slide plate cannot slide freely, which can prevent the track from loosening during the work of the bulldozer.

The technical solutions and implementation methods listed in the present invention are not limiting, and solutions that are equivalent to or have the same effect as the technical solutions and implementation methods listed in the present invention are within the protection scope of the present invention.

Claims (2)

1. a crawler doer, comprise bulldozing device, operator's compartment (3), track unit (4) and driving system, the operation of described transmission system drives bulldozer work and track unit (4), bulldozing device comprise an one end be arranged on operator's compartment (3) side by the cantilever (2) of HYDRAULIC CONTROL SYSTEM and the scraper bowl (1) that is arranged on cantilever (2) other end, it is characterized in that: described track unit (4) comprises tensioning buffer gear, crawler belt (401), track frame, guide wheel (409), a plurality of caterpillar wheel (402) and sprocket wheel (403), caterpillar wheel (402) is positioned between guide wheel (409) and sprocket wheel (403), caterpillar wheel (402), guide wheel (409) and sprocket wheel (403) are installed on track frame, crawler belt (401) is around guide wheel (409), caterpillar wheel (402) and sprocket wheel (403) are arranged, and guide wheel (409), caterpillar wheel (402) and sprocket wheel (403) composition ratcheting mechanism, tensioning buffer gear comprises slide plate (408), locating plate (405), dowel bolt (407) and electric pushrod (404), locating plate (405) and electric pushrod (404) are all fixed on track frame, the external part of electric pushrod (404) drives guide wheel (409) horizontal slip together by promoting slide plate (408), the object of tensioned tracks (401) is reached by guide wheel (409) horizontal slip, the positioning groove (406) that slide plate (408) is fixed on locating plate (405) through slide plate (408) by dowel bolt (407) is interior to limit being free to slide of slide plate (405), when open dowel bolt (407) slide plate (408) is in can sliding mode, by operation electric pushrod (404), electric pushrod (404) external part continues to stretch out promotion slide plate and drives guide wheel to slide, thus make crawler tensioning reach tensioning object.

2. a kind of crawler doer according to claim 1, is characterized in that: described sprocket wheel (403) is connected with the dynamical axis of driving system.