CN201472504U - Crawler tension device - Google Patents
Crawler tension device Download PDFInfo
- Publication number
- CN201472504U CN201472504U CN2009201617747U CN200920161774U CN201472504U CN 201472504 U CN201472504 U CN 201472504U CN 2009201617747 U CN2009201617747 U CN 2009201617747U CN 200920161774 U CN200920161774 U CN 200920161774U CN 201472504 U CN201472504 U CN 201472504U
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- CN
- China
- Prior art keywords
- cylinder body
- pull bar
- crawler belt
- handle
- crotch
- Prior art date
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Abstract
The utility model relates to a crawler tension device comprising a cylinder body. The outer part of the cylinder body is provided with a step; the step is provided with a spring seat; both ends of the cylinder body are respectively provided with blind holes; the blind hole on one end of the cylinder body is internally provided with a pull rod, and the blind hole on the other end of the cylinder body is internally provided with a T-shaped handle; the side surface of the T-shaped handle is provided with a fuel injection valve; the fuel injection valve is communicated with the blind holes through a fuel injection hole arranged in the handle; the outer wall of the cylinder body is sleeved with a spring; a section of the pull rod, which extends out of the cylinder body, is provided with a forked frame; a spring supports and presses between the spring seat and the end surface of the forked frame; the forked frame is also connected with a guide wheel used for a tension crawler; and the end part of the handle is connected with a chassis limiting plate of a crawler-type machine. The crawler tension device is used for traveling devices, i.e. a crawler-type hydraulic excavator, a crane, and the like, and when the crawler is impacted during operation, the spring continually stretches or contracts due to the change of impact force so as to play 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, outside at described cylinder body is provided with step, spring perch is equipped with at the place at described step, two ends at described cylinder body are respectively equipped with blind hole, in the blind hole of described cylinder body one end, pull bar is housed, T shape handle is housed in the blind hole of the described cylinder body other end, fuel feeding valve is equipped with in side at described T shape handle, described fuel feeding valve is connected with described blind 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 described spring perch 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, the blind bore end that handle is housed at described cylinder body is provided with annular groove, and dust ring, seal ring, support ring are housed in described annular groove, and described dust ring, seal ring, support ring cooperate with described handle.
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 between described cylinder body and described crotch and is used for spacing sleeve pipe.
Wherein, 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.
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, pin or screw are housed between described pull bar and cylinder body, described pin or screw are used for being located by connecting between described pull bar and the described cylinder body.
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, step; 3, spring perch; 4, blind hole; 5, pull bar; 6, handle; 7, fuel feeding valve; 8, oil hole; 9, spring; 10, crotch; 11, annular groove; 12, dust ring; 13, seal ring; 14, support ring; 15, through hole; 16, sleeve pipe; 17, nut; 18, catch; 19, bolt; 20, spring washer; 21, pin or screw; 22, connect ear; 23, the hole that connects guide wheel; 24, 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, be provided with step 2 in the outside of described cylinder body, spring perch 3 is equipped with at the place at described step, be respectively equipped with blind hole 4 at the two ends of described cylinder body 1, in the blind hole 4 of described cylinder body 1 one ends, pull bar 5 is housed, T shape handle 6 is housed in the blind hole 4 of described cylinder body 1 other end, fuel feeding valve 7 is equipped with in side at described T shape handle 6, described fuel feeding valve 7 is connected with described blind hole 4 by the oil hole 8 that is arranged in the described handle, on described cylinder body 1 outer wall, be set with spring 9, described pull bar 5 is equipped with crotch 10 stretching out on 1 section of the described cylinder body, described spring 9 roof pressures are between the end face of described spring perch 3 and described crotch 10, and described crotch 10 also is connected with the guide wheel that is used for the tensioner crawler belt, and the end of described handle 6 is used for being connected with the chassis positioning plate of caterpillar machinery.
In the utility model, blind hole 4 ends that handle 6 is housed at described cylinder body 1 are provided with annular groove 11, dust ring 12, seal ring 13, support ring 14 are housed in described annular groove 11, and described dust ring 12, seal ring 13, support ring 14 cooperate with described handle 6.
In the utility model, in described crotch, be provided with through hole 15, bearing fit between described through hole 15 and the described pull bar 5.
In the utility model, described pull bar 5 is set with between described cylinder body 1 and described crotch 10 and is used for spacing sleeve pipe 16.
In the utility model, described pull bar 5 is equipped with nut 17 in the end of stretching out cylinder body 1 part, and described nut 17 is used for the side of described crotch 10 retainings at described pull bar 5.
In the utility model, with the end that described nut 17 is connected catch 18 is housed at described pull bar 5, described catch 18 is connected with the end of described pull bar 5 by bolt 19, spring washer 20.
In the utility model, pin or screw 21 are housed between described pull bar 5 and cylinder body 1, described pin or screw 21 are used for being located by connecting between described pull bar 5 and the described cylinder body 1.
In the utility model, described crotch 10 is the U-shaped shape, is provided with two even ears 22 symmetrically on the base of described U-shaped shape crotch 10, is provided with the hole 23 that is used to connect guide wheel in described the company on the ear 22.
In the utility model, between the sidewall of described even ear 22 and described U-shaped shape crotch 10, be provided with reinforced rib 24.
In the utility model, be filled with butter in the cavity in the cylinder body between described handle 6 and described pull bar 5, described butter is used to regulate described handle 6 and stretches out described cylinder body 1 exterior length.
The utility model before use, pack in the annular groove 11 of the blind hole 4 of described cylinder body 1 one ends earlier dust ring 12, seal ring 13, support ring 14, and then the T shape handle 6 of packing into connect fuel feeding valve 7 in the side of T shape handle 6.The pull bar 5 of in the blind hole 4 of described cylinder body 1 other end, packing into, again pin or screw 21 inserted that outer wall of cylinder block and pull bar 5 be provided with in the air, pocketed springs 7 on the outer wall of cylinder body 1 then, stretch out on the cylinder body section cover at pull bar 3 and load onto sleeve pipe 16, crotch 10, end at pull bar 5 screws in nut 17, and then catch 18, spring washer 20, bolt 19 are linked together with the end of described pull bar 5.Again described crotch 10 is connected with guide wheel by the hole 23 that connects guide wheel.Described handle 6 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, outside at described cylinder body is provided with step, spring perch is equipped with at the place at described step, two ends at described cylinder body are respectively equipped with blind hole, in the blind hole of described cylinder body one end, pull bar is housed, T shape handle is housed in the blind hole of the described cylinder body other end, fuel feeding valve is equipped with in side at described T shape handle, described fuel feeding valve is connected with described blind hole by the oil hole that is arranged in the described handle, be set with spring on described outer wall of cylinder block, described pull bar is equipped with crotch stretching out on the described cylinder body section, and described spring roof pressure is between the end face of described spring perch 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, it is characterized in that, the blind bore end that handle is housed at described cylinder body is provided with annular groove, and dust ring, seal ring, support ring are housed in described annular groove, and described dust ring, seal ring, support ring cooperate with described handle.
3. crawler belt swelling device as claimed in claim 2 is characterized in that, is provided with through hole in described crotch, bearing fit between described through hole and the described pull bar.
4. crawler belt swelling device as claimed in claim 3 is characterized in that, described pull bar is set with between described cylinder body and described crotch and is used for spacing sleeve pipe.
5. crawler belt swelling device as claimed in claim 4 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.
6. crawler belt swelling device as claimed in claim 5 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.
7. crawler belt swelling device as claimed in claim 6 is characterized in that, pin or screw are housed between described pull bar and cylinder body, and described pin or screw are used for being located by connecting between described pull bar and the described cylinder body.
8. crawler belt swelling device as claimed in claim 7 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 |
|---|---|---|---|
| CN2009201617747U CN201472504U (en) | 2009-08-03 | 2009-08-03 | Crawler tension device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201617747U CN201472504U (en) | 2009-08-03 | 2009-08-03 | Crawler tension device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201472504U true CN201472504U (en) | 2010-05-19 |
Family
ID=42408747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201617747U Expired - Fee Related CN201472504U (en) | 2009-08-03 | 2009-08-03 | Crawler tension device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201472504U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102530119A (en) * | 2010-12-07 | 2012-07-04 | 斗山英维高株式会社 | Crawler spring tension maintaining device of heavy construction equipment |
| CN103195121A (en) * | 2013-04-10 | 2013-07-10 | 玉林市川迪机器制造有限公司 | Tensioning device for excavator |
| 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 |
| CN111232073A (en) * | 2020-02-24 | 2020-06-05 | 徐州徐工矿业机械有限公司 | Engineering machine tool rises and draws device bearing structure and engineering vehicle |
-
2009
- 2009-08-03 CN CN2009201617747U patent/CN201472504U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102530119A (en) * | 2010-12-07 | 2012-07-04 | 斗山英维高株式会社 | Crawler spring tension maintaining device of heavy construction equipment |
| CN103195121A (en) * | 2013-04-10 | 2013-07-10 | 玉林市川迪机器制造有限公司 | Tensioning device for excavator |
| 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 |
| CN111232073A (en) * | 2020-02-24 | 2020-06-05 | 徐州徐工矿业机械有限公司 | Engineering machine tool rises and draws device bearing structure and engineering vehicle |
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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: 20100519 Termination date: 20180803 |