CN202657134U - Anti-chain drop structure for caterpillar earth-moving machinery - Google Patents
Anti-chain drop structure for caterpillar earth-moving machinery Download PDFInfo
- Publication number
- CN202657134U CN202657134U CN 201220249894 CN201220249894U CN202657134U CN 202657134 U CN202657134 U CN 202657134U CN 201220249894 CN201220249894 CN 201220249894 CN 201220249894 U CN201220249894 U CN 201220249894U CN 202657134 U CN202657134 U CN 202657134U
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- caterpillar
- vehicle frame
- wheel
- crawler belt
- lower vehicle
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Abstract
The utility model discloses an anti-chain drop structure for caterpillar earth-moving machinery. The anti-chain drop structure comprises a lower vehicle frame of an excavator, wherein a driving wheel, a driven wheel, and a caterpillar track which surrounds the driving wheel and the driven wheel are arranged on the lower vehicle frame; the caterpillar track comprises caterpillar track pin shafts; a plurality of thrust wheels are arranged on the lower vehicle frame; one or a plurality of anti-falling devices are arranged on the lower vehicle frame; each anti-falling device is provided with two parallel supporting plates and two parallel baffles which are fixed between the lower parts of the two supporting plates; two arc gaps which are matched with two ends of one thrust wheel are respectively formed on parts, which are positioned between the two supporting plates, on the connecting surfaces of the two baffles and the supporting plates; each anti-falling device is positioned below the thrust wheels, and is fixed at the corresponding position of the lower vehicle frame of the excavator through the two supporting plates; the two baffles of each anti-falling device are positioned on the outer sides of two end surfaces of the caterpillar track pin shafts respectively; and the bottom surfaces of the baffles are lower than the axes of the caterpillar track pin shafts. The structure achieves the effects of protecting caterpillar tracks and guaranteeing a driving function, can bear relatively high impact and is not deformed, and has high stability.
Description
Technical field
The utility model relates to the chain-falling structure of crawler type earthmoving machinery.
Background technology
Earthmoving machinery comprises excavation, scraper, push or the machinery of smooth soil and sandstone etc., the crawler belt (referring to Fig. 1) that the lower vehicle frame of crawler type earthmoving machinery is provided with driving wheel, flower wheel and arranges around driving wheel, flower wheel, crawler belt is comprised of caterpillar block, chain rail and bearing pin etc., the chain rail is connected with caterpillar block, bearing pin couples together each chain rail and makes caterpillar block consist of chain link, be provided with some caterpillar wheels at lower vehicle frame, the both sides of caterpillar wheel have flange, when crawler belt rotated, the chain rail of caterpillar block passed through between two flanges of caterpillar wheel.
See Fig. 8, the crawler type earthmoving machinery when walking, the chain rail 4-3 of crawler belt is subjected to the flanged limits of caterpillar wheel 5 both sides, so crawler belt is not easy to horizontally slip, but work as it at complex-terrain, as uneven, sandstone are muddy and the walking of the road surface such as inclination, and when turning operation, the power of the to the left and right direction that crawler belt is subject to is larger, and the caterpillar wheel flange height is again lower, be difficult to limit crawler belt violent displacement in this case, finally cause caterpillar block slippage (see figure 9), crawler belt falls the chain phenomenon.
The utility model content
The purpose of this utility model is to propose a kind of chain-falling structure that prevents the crawler type earthmoving machinery of crawler belt slippage.
For achieving the above object, the utility model is taked following technical scheme: the chain-falling structure of the crawler type earthmoving machinery that the utility model proposes comprises lower frame of excavator, lower vehicle frame is provided with driving wheel, flower wheel and around driving wheel, the crawler belt of flower wheel, crawler belt comprises the crawler belt bearing pin, be provided with some caterpillar wheels at lower vehicle frame, it is characterized in that: at lower vehicle frame one or several anti-drop devices are installed, anti-drop device has two parallel support plates and is fixed on two parallel between two support plate bottoms baffle plates, form opening between two baffle plates and two support plates, on the upper surface of two baffle plates and be in the arc gap that is equipped with on the position between two support plates with the axle head coupling of caterpillar wheel, arc gap on above-mentioned opening and two baffle plates consists of the space that can hold caterpillar wheel, anti-drop device covers on the caterpillar wheel, and be fixed on the lower frame of excavator correspondence position by two support plates, its two baffle plate is in respectively the outside of crawler belt bearing pin both ends of the surface, and the bottom surface of baffle plate is lower than the axle center of crawler belt bearing pin.
Described support plate is bent plate, and on the baffle plate end face and the both sides that are in arc gap respectively are provided with link slot, and the bottom of support plate is inserted in the link slot of baffle plate and welded.
The utility model plays the protection crawler belt, ensures the effect of driving function, can bear larger impact and indeformable, good stability.
Description of drawings
Fig. 1 is the utility model scheme drawing.
Fig. 2 is the anti-drop device schematic perspective view.
Fig. 3 is the anti-drop device plan sketch.
Fig. 4 is the baffle plate scheme drawing.
Fig. 5 is the anti-drop device scheme of installation.
Fig. 6 is the site plan between anti-drop device and the caterpillar wheel.
Fig. 7 is the site plan between the bearing pin of the baffle plate of anti-drop device and crawler belt.
Fig. 8 is the constitution diagram of crawler type earthmoving machinery when normal walking.
Fig. 9 is the constitution diagram of crawler type earthmoving machinery when falling chain.
The specific embodiment
See Fig. 1 to Fig. 7, the chain-falling structure of this crawler type earthmoving machinery comprises lower frame of excavator 2, lower vehicle frame is provided with driving wheel 3, flower wheel and centers on the crawler belt 4 of driving wheel, flower wheel, crawler belt 4 has caterpillar block 4-1, chain rail 4-3 and bearing pin 4-2 forms, chain rail 4-3 is connected with caterpillar block 4-1, and bearing pin 4-2 couples together each chain rail and makes caterpillar block consist of chain link.Be provided with some caterpillar wheels 5 at lower vehicle frame 2, the chain rail 4-3 of caterpillar block 4-1 passes through between two flanges of caterpillar wheel 5.
At lower vehicle frame 2 one or several anti-drop devices 1 are installed, anti-drop device 1 has two parallel support plate 1-2 and is fixed on two parallel between two support plate 1-2 bottoms baffle plate 1-1, baffle plate 1-1 and support plate 1-2 are processed by steel plate, support plate 1-2 is bent plate, can reduce installation footprint, expendable weight.
Form opening 1-d between two baffle plate 1-1 and the two support plate 1-2, the centre of support plate 1-2 bottom is provided with groove, on the upper surface of two baffle plate 1-1 and be in position between the two support plate 1-2 and be respectively equipped with arc gap 1-1a with the axle head coupling of caterpillar wheel 5, arc gap 1-1a on above-mentioned opening 1-d and the two baffle plate 1-1 consists of the space that can hold caterpillar wheel 5, anti-drop device 1 is covered on the caterpillar wheel 5, and can not interfere between the caterpillar wheel 5.The top of two support plate 1-2 is fixed by bolts on lower frame of excavator 2 correspondence positions, and two baffle plate 1-1 are in respectively the outside of the bearing pin 4-2 both ends of the surface of crawler belt, and the axle center o(that the bottom surface 1-1b of baffle plate 1-1 is lower than crawler belt bearing pin 4-2 sees Fig. 5).
Have gap h(between the two baffle plate 1-1 end face corresponding with the bearing pin 4-2 of crawler belt and see Fig. 7), if the spacing h of baffle plate 1-1 and crawler belt bearing pin 4-2 is excessive, then do not have the effect of chain-falling; Spacing is too small, then crawler belt bearing pin 4-2 when walking easily and baffle plate 1-1 rub, cause unnecessary wearing and tearing.The bottom surface of baffle plate 1-1 is lower than the axle center of crawler belt bearing pin 4-2, could when crawler belt generation slippage, play the spacing anticreep effect of actv. like this.
Because anti-drop device 1 can bear larger impact, so need select the higher bolt of intensity to install, be used for simultaneously making the steel plate of baffle plate and support plate also because selecting high-strength plate.Be convenient to the welding location, also strengthened weld strength simultaneously.Support plate is formed by steel plate bending, and keeps certain bent angle, can bear larger impact like this after welding and indeformable, good stability.
Claims (2)
1. the chain-falling structure of a crawler type earthmoving machinery, comprise lower frame of excavator (2), lower vehicle frame is provided with driving wheel (3), flower wheel and around driving wheel, the crawler belt of flower wheel (4), crawler belt (4) comprises crawler belt bearing pin (4-2), be provided with some caterpillar wheels (5) at lower vehicle frame (2), it is characterized in that: at lower vehicle frame (2) one or several anti-drop devices (1) are installed, anti-drop device (1) has two parallel support plate (1-2,1-2) and be fixed on two support plate (1-2,1-2) parallel two baffle plate (1-1 between the bottom, 1-1), form opening (1-d) between two baffle plates (1-1) and two support plates (1-2), on the upper surface of two baffle plates (1-1) and be in the arc gap (1-1a) that is equipped with on the position between two support plates (1-2) with the axle head coupling of caterpillar wheel (5), arc gap (1-1a) on above-mentioned opening (1-d) and two baffle plates (1-1) consists of the space that can hold caterpillar wheel (5), anti-drop device (1) covers on the caterpillar wheel (5), and be fixed on lower frame of excavator (2) correspondence position by two support plates (1-2), its two baffle plate (1-1) is in respectively the outside of crawler belt bearing pin (4-2) both ends of the surface, and the bottom surface (1-1b) of baffle plate (1-1) is lower than the axle center (o) of crawler belt bearing pin (4-2).
2. the chain-falling structure of crawler type earthmoving machinery according to claim 1, it is characterized in that: support plate (1-2) is bent plate, on baffle plate (1-1) end face and the both sides that are in arc gap (1-1a) respectively are provided with link slot (1-1c), and the bottom of support plate (1-2) is inserted in the link slot (1-1 c) of baffle plate (1-1) and welded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220249894 CN202657134U (en) | 2012-05-30 | 2012-05-30 | Anti-chain drop structure for caterpillar earth-moving machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220249894 CN202657134U (en) | 2012-05-30 | 2012-05-30 | Anti-chain drop structure for caterpillar earth-moving machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202657134U true CN202657134U (en) | 2013-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220249894 Expired - Fee Related CN202657134U (en) | 2012-05-30 | 2012-05-30 | Anti-chain drop structure for caterpillar earth-moving machinery |
Country Status (1)
| Country | Link |
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| CN (1) | CN202657134U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103741764A (en) * | 2013-12-24 | 2014-04-23 | 柳州正菱集团有限公司 | Anti-bounce rack of excavator |
| CN105059409A (en) * | 2015-09-07 | 2015-11-18 | 上海中联重科桩工机械有限公司 | Rail clamping device for truck frame, truck frame and rotary drilling rig |
| CN105711664A (en) * | 2016-05-11 | 2016-06-29 | 泉州市泉永机械发展有限公司 | Protection chain mechanism and caterpillar band walking device |
-
2012
- 2012-05-30 CN CN 201220249894 patent/CN202657134U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103741764A (en) * | 2013-12-24 | 2014-04-23 | 柳州正菱集团有限公司 | Anti-bounce rack of excavator |
| CN105059409A (en) * | 2015-09-07 | 2015-11-18 | 上海中联重科桩工机械有限公司 | Rail clamping device for truck frame, truck frame and rotary drilling rig |
| CN105059409B (en) * | 2015-09-07 | 2017-09-01 | 上海中联重科桩工机械有限公司 | Rail clamping device, track frame and rotary drilling rig for track frame |
| CN105711664A (en) * | 2016-05-11 | 2016-06-29 | 泉州市泉永机械发展有限公司 | Protection chain mechanism and caterpillar band walking device |
| CN105711664B (en) * | 2016-05-11 | 2019-07-16 | 泉州市泉永机械发展有限公司 | A kind of shield chain mechanism and crawler unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 213002 No. 36 middle Huashan Road, Xinbei District, Jiangsu, Changzhou Patentee after: Changlin Co., Ltd. Address before: 213002 No. 10 Chang Linzhu Road, bell tower area, Jiangsu, Changzhou Patentee before: Changlin Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20150530 |
|
| EXPY | Termination of patent right or utility model |