CN201484527U - Caterpillar belt tightening device - Google Patents
Caterpillar belt tightening device Download PDFInfo
- Publication number
- CN201484527U CN201484527U CN2009201617751U CN200920161775U CN201484527U CN 201484527 U CN201484527 U CN 201484527U CN 2009201617751 U CN2009201617751 U CN 2009201617751U CN 200920161775 U CN200920161775 U CN 200920161775U CN 201484527 U CN201484527 U CN 201484527U
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- Prior art keywords
- cylinder body
- hole
- pull bar
- crawler belt
- crotch
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Abstract
The utility model relates to a caterpillar belt tightening device. The device comprises a cylinder body, wherein a shaft in a ladder shape is arranged outside the cylinder body, a through hole in the ladder shape is arranged inside the cylinder body, a draw rod in ladder shape is arranged on one end of the through hole, the draw rod in the ladder shape is matched with the through hole in the ladder shape, a T-shaped handle is installed on the other end of the through hole, an oil injection valve is arranged on the lateral face of the T-shaped handle, the oil injection valve is communicated with the through hole through the oil injection hole arranged in the handle, a spring is sleeved on the outer wall of the cylinder body, a fork frame is installed on a section of the draw rod extending out of the cylinder body, the spring is pressed between a step in the ladder shape outside the cylinder body and the end surface of the fork frame, the fork frame is further connected with a guiding wheel for tightening a caterpillar belt, the end portion of the handle is used to connect a chassis limiting plate in a caterpillar belt machine. The caterpillar belt tightening device is used in running devices such as caterpillar belt hydraulic digging machines, cranes and the like, when the caterpillar belt encounters impact in operation, and the changes of impact force enables the spring to extend or contract continuously, thereby playing a buffering role.
Description
Technical field
The utility model relates to the crawler belt swelling device, particularly relates to the crawler belt swelling device of the traveling gear of construction machinery and equipments such as excavating machine, is mainly used between the positioning plate on the guide wheel of traxcavator and chassis.
Background technology
Track unit has good characteristics such as tractive force is big, grounding pressure is low, hill climbing ability is strong, turn radius is little, thereby be widely used in fields such as construction machinery and equipment, mining machinery, vehicle for constructions, track unit particularly obtains general application in big-and-middle-sized self-propelled machinery, as machineries such as trench cutting machine, excavating machine, piling machinery, rigs.And the crawler belt swelling device has very big influence to the crawler travel performance.In the prior art, the main method of tensioner crawler belt comprises spring swelling method, oil cylinder tensioner method, screw rod tensioner method.Wherein if adopt the spring swelling method, owing between the elastic force of spring and its scantling of structure certain proportionate relationship is arranged, spring undersized, its elastic force is not enough to crawler belt is remained on the state of tensioner, spring oversize, the restriction of the crawler belt physical construction that rises is difficult for installing and using.And adopt oil cylinder and screw rod tensioner method, and because the good rigidly of oil cylinder and screw rod is not yielding, when crawler belt was subjected to impulsive force, crawler belt can not keep it to be in the tensioner state at any time, the effect of its tensioner will be had a strong impact on.Therefore, be necessary the structure of existing crawler belt swelling device is improved.
The utility model content
The purpose of this utility model is to overcome defective of the prior art, designs a kind of crawler belt swelling device.This device can guarantee suitable crawler belt expanding force constantly; When track adjusting wheel was subjected to the impact load in the place ahead, the recoil spring retraction prevented that to absorb vibration crawler belt and drive wheel are damaged.
For achieving the above object, the technical solution of the utility model is to adopt a kind of crawler belt swelling device, this device comprises cylinder body, the outside of described cylinder body is stair-stepping axle, the inside of described cylinder body is stair-stepping through hole, end at described through hole is equipped with stair-stepping pull bar, described stair-stepping pull bar matches with described stair-stepping through hole, the other end at described through hole is equipped with T shape handle, fuel feeding valve is equipped with in side at described T shape handle, described fuel feeding valve is connected with described through hole by the oil hole that is arranged in the described handle, on described outer wall of cylinder block, be set with spring, described pull bar is equipped with crotch stretching out on the described cylinder body section, described spring roof pressure is between the end face of the exterior step-like step of described cylinder body and described crotch, described crotch also is connected with the guide wheel that is used for the tensioner crawler belt, and the end of described handle is used for being connected with the chassis positioning plate of caterpillar machinery.
Wherein, on the inwall section of cooperation of described handle and described cylinder body, flow ring is housed, seal ring and back-up ring is housed at an end of described flow ring.
Wherein, be respectively equipped with annular groove at the two ends of described inboard wall of cylinder block, dust ring, O RunddichtringO are housed respectively in described annular groove, described dust ring cooperates with described handle, and described O RunddichtringO cooperates with described pull bar.
Wherein, in described crotch, be provided with through hole, bearing fit between described through hole and the described pull bar.
Wherein, described pull bar is set with sleeve pipe between described cylinder body and described crotch.
Wherein, described pull bar is equipped with nut in the end of stretching out cylinder part, and described nut is with the side of described crotch retaining at described pull bar.
Wherein, with the end that described nut is connected catch is housed at described pull bar, described catch is connected with the end of described pull bar by bolt, spring washer.
Wherein, described crotch is the U-shaped shape, is provided with two even ears symmetrically on the base of described U-shaped shape crotch, is provided with the hole that is used to connect guide wheel in described the company on the ear.
Wherein, between the sidewall of described even ear and described U-shaped shape crotch, be provided with reinforced rib.
Wherein, be filled with machine oil in the cavity in the cylinder body between described handle and described pull bar, described machine oil is used to regulate described handle and stretches out the exterior length of described cylinder body.
Advantage of the present utility model and beneficial effect are: this crawler belt swelling device is used for running gears such as crawler hypraulic excavator, loop wheel machine, this swelling device is pressed into butter in the cylinder body by grease compressor grease, make the pull bar roof pressure of an end of cylinder body move guide wheel, be sleeved on the outer compression spring of cylinder body, make crawler belt obtain certain pre-tensioning, run in crawler belt is expert at fortune when impacting, the variation of impulsive force makes spring constantly stretch or contract, thereby plays the effect of buffering.The utlity model has simple in structure, reliable operation, can improve stationarity in travelling, and reequip characteristics easily.
Description of drawings
Fig. 1 is the profile front view of the utility model crawler belt swelling device;
Fig. 2 is the cutaway view of Fig. 1;
Fig. 3 is the lateral plan of Fig. 1.
Among the figure: 1, cylinder body; 2, through hole; 3, pull bar; 4, handle; 5, fuel feeding valve; 6, oil hole; 7, spring; 8, crotch; 9, terraced steps; 10, end face; 11, flow ring; 12, seal ring; 13, back-up ring; 14, annular groove; 15, dust ring; 16, O RunddichtringO; 17, through hole; 18, sleeve pipe; 19, nut; 20, catch; 21, bolt; 22, spring washer; 23, connect ear; 24, the hole that connects guide wheel; 25, reinforced rib.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present utility model is further described.Following examples only are used for the technical solution of the utility model more clearly is described, and can not limit protection domain of the present utility model with this.
Shown in accompanying drawing 1 to 3, the concrete technical scheme of implementing of the utility model is:
A kind of crawler belt swelling device, this device comprises cylinder body 1, the outside of described cylinder body 1 is stair-stepping axle, the inside of described cylinder body is stair-stepping through hole 2, end at described through hole 2 is equipped with stair-stepping pull bar 3, described stair-stepping pull bar 3 matches with described stair-stepping through hole 2, the other end at described through hole 2 is equipped with T shape handle 4, fuel feeding valve 5 is equipped with in side at described T shape handle 4, described fuel feeding valve 5 is connected with described through hole 2 by the oil hole 6 that is arranged in the described handle 4, on described cylinder body 1 outer wall, be set with spring 7, described pull bar 3 is equipped with crotch 8 stretching out on the described cylinder 1 body section, described spring 7 roof pressures are between the end face 10 of the exterior step-like step 9 of described cylinder body 1 and described crotch 8, described crotch 8 also is connected with the guide wheel that is used for the tensioner crawler belt, and the end of described handle 4 is used for being connected with the chassis positioning plate of caterpillar machinery.
In the utility model, on the inwall section of cooperation of described handle 4 and described cylinder body 1, flow ring 11 is housed, at an end of described flow ring 11 seal ring 12 and back-up ring 13 are housed.
In the utility model, two ends at described cylinder body 1 inwall are respectively equipped with annular groove 14, dust ring 15, O RunddichtringO 16 are housed respectively in described annular groove 14, and described dust ring 15 cooperates with described handle 4, and described O RunddichtringO 16 cooperates with described pull bar 3.
In the utility model, in described crotch 8, be provided with through hole 17, bearing fit between described through hole 17 and the described pull bar 3.
In the utility model, described pull bar 3 is set with sleeve pipe 18 between described cylinder body 1 and described crotch 8.
In the utility model, described pull bar 3 is equipped with nut 19 in the end of stretching out cylinder body 1 part, and described nut 19 is with the side of described crotch 8 retainings at described pull bar 3.
In the utility model, with the end that described nut 19 is connected catch 20 is housed at described pull bar 3, described catch 20 is connected with the end of described pull bar 3 by bolt 21, spring washer 22.
In the utility model, described crotch 8 is the U-shaped shape, is provided with two even ears 23 symmetrically on the base of described U-shaped shape crotch 8, is provided with the hole 24 that is used to connect guide wheel in described the company on the ear 23.
In the utility model, between the sidewall of described even ear 23 and described U-shaped shape crotch 8, be provided with reinforced rib 25.
In the utility model, be filled with machine oil in the cavity in the cylinder body between described handle 4 and described pull bar 3, described machine oil is used to regulate described handle 4 and stretches out described cylinder body 1 exterior length.
The utility model before use, in described cylinder body 1, adorn O RunddichtringO 16 earlier, and then the pull bar 13 of packing into, reinstall dust ring 15, again flow ring 11, seal ring 12 and back-up ring 13 are contained in successively an end of T shape handle 4, described T shape handle 4 is inserted in the through hole 2 of cylinder body, connect fuel feeding valve 5 in the side of T shape handle 4; Pocketed springs 7 on the outer wall of cylinder body 1, stretch out to overlap on the cylinder body section at pull bar 3 then and load onto sleeve pipe 18, crotch 8, screw in nut 19 in the end of pull bar 3, and then the end of catch 20, spring washer 22, bolt 21 described pull bars 3 is linked together.Again described crotch 8 is connected with guide wheel by the hole 24 that connects guide wheel.Described handle 4 is connected with the chassis positioning plate of caterpillar machinery.
The utility model track tensioning force that just can suitably guarantee like this, when track adjusting wheel was subjected to the impact load in the place ahead, the recoil spring retraction prevented that to absorb vibration crawler belt and drive wheel from damaging.This swelling device is pressed into butter in the cavity of cylinder body by grease compressor grease, make an end of pull bar move guide wheel, one end compression spring, make spring obtain certain pre-tensioning, in crawler belt is expert at fortune, run into when impacting, the variation of impulsive force makes spring constantly stretch or contract, thereby plays the effect of buffering.This swelling device has simple in structure, reliable operation, can improve stationarity in travelling, and reequips characteristics easily.
The above only is a preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1. crawler belt swelling device, it is characterized in that, this device comprises cylinder body, the outside of described cylinder body is stair-stepping axle, the inside of described cylinder body is stair-stepping through hole, end at described through hole is equipped with stair-stepping pull bar, described stair-stepping pull bar matches with described stair-stepping through hole, the other end at described through hole is equipped with T shape handle, fuel feeding valve is equipped with in side at described T shape handle, described fuel feeding valve is connected with described through hole by the oil hole that is arranged in the described handle, on described outer wall of cylinder block, be set with spring, described pull bar is equipped with crotch stretching out on the described cylinder body section, described spring roof pressure is between the end face of the exterior step-like step of described cylinder body and described crotch, described crotch also is connected with the guide wheel that is used for the tensioner crawler belt, and the end of described handle is used for being connected with the chassis positioning plate of caterpillar machinery.
2. crawler belt swelling device as claimed in claim 1 is characterized in that, on the inwall section of cooperation of described handle and described cylinder body flow ring is housed, and at an end of described flow ring seal ring and back-up ring is housed.
3. crawler belt swelling device as claimed in claim 2, it is characterized in that, be respectively equipped with annular groove, dust ring, O RunddichtringO are housed respectively in described annular groove at the two ends of described inboard wall of cylinder block, described dust ring cooperates with described handle, and described O RunddichtringO cooperates with described pull bar.
4. crawler belt swelling device as claimed in claim 3 is characterized in that, is provided with through hole in described crotch, bearing fit between described through hole and the described pull bar.
5. crawler belt swelling device as claimed in claim 4 is characterized in that, described pull bar is set with sleeve pipe between described cylinder body and described crotch.
6. crawler belt swelling device as claimed in claim 5 is characterized in that described pull bar is equipped with nut in the end of stretching out cylinder part, and described nut is used for the side of described crotch retaining at described pull bar.
7. crawler belt swelling device as claimed in claim 6 is characterized in that, with the end that described nut is connected catch is housed at described pull bar, and described catch is connected with the end of described pull bar by bolt, spring washer.
8. crawler belt swelling device as claimed in claim 1 is characterized in that, described crotch is the U-shaped shape, is provided with two even ears symmetrically on the base of described U-shaped shape crotch, is provided with the hole that is used to connect guide wheel in described the company on the ear.
9. crawler belt swelling device as claimed in claim 8 is characterized in that, is provided with reinforced rib between the sidewall of described even ear and described U-shaped shape crotch.
10. crawler belt swelling device as claimed in claim 1 is characterized in that, is filled with machine oil in the cavity in the cylinder body between described handle and described pull bar, and described machine oil is used to regulate described handle and stretches out the exterior length of described cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201617751U CN201484527U (en) | 2009-08-03 | 2009-08-03 | Caterpillar belt tightening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201617751U CN201484527U (en) | 2009-08-03 | 2009-08-03 | Caterpillar belt tightening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201484527U true CN201484527U (en) | 2010-05-26 |
Family
ID=42423418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201617751U Expired - Fee Related CN201484527U (en) | 2009-08-03 | 2009-08-03 | Caterpillar belt tightening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201484527U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103057617A (en) * | 2011-10-19 | 2013-04-24 | 迪尔公司 | Recoil spring assembly |
| CN104742994A (en) * | 2015-03-31 | 2015-07-01 | 三一重机有限公司 | Variable stiffness tension device and working mode thereof |
| CN105332990A (en) * | 2015-11-30 | 2016-02-17 | 玉林市川迪机器制造有限公司 | Pull rod of tensioning device of excavator |
| CN108216407A (en) * | 2017-12-29 | 2018-06-29 | 深圳市艾特智能科技有限公司 | Robot |
| CN108556940A (en) * | 2018-03-21 | 2018-09-21 | 江苏长龄液压股份有限公司 | A kind of Caterpillar belt tightening device of expanding force automatic adjustment |
-
2009
- 2009-08-03 CN CN2009201617751U patent/CN201484527U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103057617A (en) * | 2011-10-19 | 2013-04-24 | 迪尔公司 | Recoil spring assembly |
| CN104742994A (en) * | 2015-03-31 | 2015-07-01 | 三一重机有限公司 | Variable stiffness tension device and working mode thereof |
| CN105332990A (en) * | 2015-11-30 | 2016-02-17 | 玉林市川迪机器制造有限公司 | Pull rod of tensioning device of excavator |
| CN108216407A (en) * | 2017-12-29 | 2018-06-29 | 深圳市艾特智能科技有限公司 | Robot |
| CN108216407B (en) * | 2017-12-29 | 2019-11-05 | 深圳市艾特智能科技有限公司 | Robot |
| CN108556940A (en) * | 2018-03-21 | 2018-09-21 | 江苏长龄液压股份有限公司 | A kind of Caterpillar belt tightening device of expanding force automatic adjustment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGYIN CHANGLING MACHINERY MANUFACTURING CO., LT Free format text: FORMER OWNER: CHANGLING HYDRAULIC PRESS PLANT, JIANGYIN CITY Effective date: 20101013 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 214400 NO.1, DAYUANLI ROAD, YUNTING TOWN, JIANGYIN CITY, JIANGSU PROVINCE TO: 214423 NO.1, DAYUANLI ROAD, YUNTING DEVELOPMENT AREA, JIANGYIN CITY, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20101013 Address after: 214423, No. 1, Great Garden Road, development zone, cloud Pavilion Town, Jiangyin, Jiangsu Patentee after: Jiangyin Changling Machinery Manufacturing Co., Ltd. Address before: 214400, No. 1, Da Li Garden Road, cloud Pavilion Town, Jiangsu, Jiangyin Patentee before: Changling Hydraulic Press Plant, Jiangyin City |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20180803 |