CN202225935U - Crawler tensioning device - Google Patents
Crawler tensioning device Download PDFInfo
- Publication number
- CN202225935U CN202225935U CN2011202780495U CN201120278049U CN202225935U CN 202225935 U CN202225935 U CN 202225935U CN 2011202780495 U CN2011202780495 U CN 2011202780495U CN 201120278049 U CN201120278049 U CN 201120278049U CN 202225935 U CN202225935 U CN 202225935U
- Authority
- CN
- China
- Prior art keywords
- cylinder body
- piston
- spring
- axis
- spring box
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The embodiment of the utility model discloses a crawler tensioning device. The device includes a connecting seat (1), a piston shaft (2), a front cover (3), a cylinder body (4), a tensioning spring (5), a spring box (6), a nut (7) and a positioning block (8), wherein one end of the piston shaft (2) is connected with the connecting seat (1), and the other end of the piston shaft (2) is connected with the cylinder body (4); a step is arranged outside the cylinder body (4), and the spring box (6) is mounted at the step; a front limit flange of the tensioning spring (5) is connected with the cylinder body (4), a rear limit flange of the tensioning spring (5) is connected with the spring box (6), and the front cover (3) is mounted at the front end of the spring box (6), so as to form an enclosed box body; and the nut (7) is screwed into the rear end of the spring box (6), and the positioning block is embedded into the cylinder body (4) at the rear end of the nut (7), so as to prevent the nut (7) from loosening and dropping. The embodiment of the utility model has the advantage that the assembly and the disassembly of the device are effectively facilitated.
Description
Technical field
The utility model relates to the caterpillar machinery chassis member technical field, relates in particular to a kind of crawler belt swelling device.
Background technology
Track unit has that tractive force is big, and grounding pressure is low, and hill climbing ability is strong; Good characteristics such as turn radius is little; Thereby at construction machinery and equipment, mining machinery, fields such as vehicle for construction are widely used; Track unit particularly obtains general application in big-and-middle-sized self-propelled machinery, like machineries such as trench cutting machine, excavating machine, stake merit machinery, rigs.And the crawler belt swelling device has very big influence to the crawler travel performance.
In the prior art, the form that the crawler belt swelling device generally adopts spring to combine with cylinder body, spring is preset certain amount of compression; And in cylinder body, inject an amount of oil, can make crawler belt keep the tensioner state, when walking receives when impacting; Spring is regained absorbed oscillation; Alleviate the vibration of complete machine, strengthen operation comfort, prevent that simultaneously crawler belt and drive wheel from damaging.
The contriver finds that under study for action there is following defective in crawler belt swelling device of the prior art:
The spring box of existing crawler belt swelling device is welded on the bogie frame; The tensioner spring assembly is installed in the spring box on the bogie frame; Cylinder body, push rod, protecgulum, bonnet etc. are installed then; Not only assemble loaded down with trivial detailsly, and the processes such as manufacturing processing of each part are quite numerous and diverse in the welding of spring box, spring box.Simultaneously, the pipe link between guide wheel and the cylinder body does not support, and being hit of guide wheel is bigger to the influence of cylinder body, the destruction of causing cylinder body easily, and crawler belt can not keep being in the tensioner state at any time, and the effect of its tensioner can be affected.
The utility model content
The utility model embodiment provides a kind of crawler belt swelling device, and the assembling of this crawler belt swelling device is simple, and is easily manufactured, and cylinder body is not easy to damage, and crawler belt also can keep the tensioner state by actv..
The device of the utility model comprises:.
Connection Block (1), the axis of the piston (2), protecgulum (3), cylinder body (4), tensioner spring (5), spring box (6), nut (7), locating piece (8); One end of the axis of the piston (2) is connected with Connection Block (1), and the other end of the axis of the piston (2) is connected with cylinder body (4); Cylinder body (4) outside is provided with step, step place mounting spring case (6); Tensioner spring (5) front limit flange is connected with cylinder body (4), and the spacing flange in back is connected with spring box (6), and the front end of spring box (6) is installed protecgulum (3), forms airtight casing; The rear end of spring box (6) screws in nut (7), and locating piece is embedded in the cylinder body (4) in the rear end of nut (7), is used to prevent nut (7) loose or dislocation.
Can find out that from above technical scheme the utility model embodiment has the following advantages:
In this use is novel, be connected with spring box through back spacing flange the tensioner spring, the front limit flange is connected with oil cylinder; And use nut and locating piece to carry out spacing; And spring box is installed in the step place of cylinder body, and making does not need earlier spring box to be welded on the bogie frame, but after the installation of crawler belt swelling device assembly; Integral installation makes Assembly And Disassembly all more convenient to bogie frame.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the utility model; To do to introduce simply to the accompanying drawing of required use among the embodiment below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the sectional drawing of the crawler belt swelling device of the utility model embodiment.
The specific embodiment
To combine the accompanying drawing in the utility model below, the technical scheme in the utility model is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment provides a kind of crawler belt swelling device; This device can guarantee suitable crawler belt expanding force, and when track adjusting wheel was received the impact load in the place ahead, the tensioner spring bounced back with absorbed oscillation; Prevent that crawler belt and drive wheel are damaged, and below are elaborated.
See also Fig. 1, the embodiment for the sectional drawing of the crawler belt swelling device of the utility model embodiment specifically comprises:
Connection Block (1), the axis of the piston (2), protecgulum (3), cylinder body (4), tensioner spring (5), spring box (6), nut (7), locating piece (8).
Wherein, an end of the axis of the piston (2) is connected with Connection Block (1), and the other end of the axis of the piston (2) is connected with cylinder body (4); Be specially: an end of the axis of the piston (2) tangent plane is taper; And said tangent plane is that a bevelled end inserts Connection Block (1), forms a fixed connection, and the other end of the axis of the piston (2) is with piston ring and oil sealing is installed in the termination; And insert in the piston groove of cylinder body (4), make the axis of the piston (2) in the piston groove of cylinder body (4), to move forward and backward.
In the utility model embodiment, be provided with step in cylinder body (4) outside, this step place mounting spring case (6); Tensioner spring (5) is arranged in the spring box (6), and tensioner spring (5) front limit flange is connected with cylinder body (4), and the spacing flange in back is connected with spring box (6); The front end of spring box (6) is installed protecgulum (3); Form airtight casing, and protecgulum (3) is pressed in the cylinder body (4) support piston axle (2).
In the utility model embodiment, the rear end of spring box (6) screws in nut (7), and in the rear end of nut (7) locating piece (8) is embedded in the cylinder body (4), is used to prevent nut (7) loose or dislocation.
Need to prove, in the utility model embodiment, after tensioner spring (5) is installed; Need make spring be in compressive state with length of spring compressed to the pretension height, utilize nut (7) and locating piece (8) to carry out spacing then; Make tensioner spring (5) can keep compressive state; When track adjusting wheel received the impact load in the place ahead, the tensioner spring can absorbed oscillation, prevents that crawler belt and drive wheel are damaged.
In addition; Crawler belt swelling device among the utility model embodiment also comprises the zerk (9) that is used for injecting to cylinder body (4) oil; And this zerk (9) is installed in an end relative with piston groove in the cylinder body (4), in practical application, in oil pocket, injects oil through zerk (9); Promoting the axis of the piston (2) travels forward; Cause is connected with guide wheel with the other end of the axis of the piston (2) bonded assembly Connection Block (1), moves forward thereby the axis of the piston (2) promotes guide wheel through Connection Block (1), makes crawler belt can be in the state of tensioner.
In the utility model embodiment, but this crawler belt swelling device overall package before assembly is assembled to bogie frame is good, makes things convenient for the Assembly And Disassembly of device.
In the utility model embodiment, be connected with spring box through back spacing flange the tensioner spring, the front limit flange is connected with oil cylinder; And it is spacing to use nut and locating piece to carry out, and spring box is installed in the step place of cylinder body, and making does not need earlier spring box to be welded on the bogie frame; But after the installation of crawler belt swelling device assembly; Integral installation makes Assembly And Disassembly all more convenient to bogie frame, prevents the spring corrosion through the protecgulum sealing bellows is installed simultaneously; And middle part that can the support piston axle, increased crawler belt swelling device single-piece stability.
Should be understood that, concerning those of ordinary skills, can improve or conversion, and all these improvement and conversion all belong to the protection domain of the utility model accompanying claims firmly according to above-mentioned explanation.
More than a kind of crawler belt swelling device that the utility model provided has been carried out detailed introduction; For one of ordinary skill in the art; Thought according to the embodiment of the invention; The part that on the specific embodiment and field of application, all can change, in sum, this description should not be construed as limitation of the present invention.
Claims (4)
1. a crawler belt swelling device is characterized in that, comprising:
Connection Block (1), the axis of the piston (2), protecgulum (3), cylinder body (4), tensioner spring (5), spring box (6), nut (7), locating piece (8);
One end of said the axis of the piston (2) is connected with said Connection Block (1), and the other end of said the axis of the piston (2) is connected with said cylinder body (4);
Said cylinder body (4) outside is provided with step, and said spring box (6) is installed at said step place;
Said tensioner spring (5) front limit flange is connected with cylinder body (4), and the spacing flange in back is connected with spring box (6), and the front end of said spring box (6) is installed said protecgulum (3), forms airtight casing;
The rear end of said spring box (6) screws in said nut (7), and locating piece is embedded in the cylinder body (4) in the rear end of said nut (7), is used to prevent said nut (7) loose or dislocation.
2. crawler belt swelling device according to claim 1 is characterized in that, an end of said the axis of the piston (2) is connected with said Connection Block (1), and the other end of said the axis of the piston (2) is connected with said cylinder body (4) and comprises:
One end of said the axis of the piston (2) tangent plane is taper; And said tangent plane is that a bevelled end inserts said Connection Block (1); Form a fixed connection; The other end of said the axis of the piston (2) is with piston ring and oil sealing is installed in the termination, and inserts in the piston groove of said cylinder body (4), makes said the axis of the piston (2) in the piston groove of cylinder body (4), to move forward and backward.
3. crawler belt swelling device according to claim 1 and 2 is characterized in that, said device also comprises the zerk (9) that is used for injecting to cylinder body (4) oil, and said zerk (9) is installed in an end relative with piston groove in the cylinder body (4).
4. crawler belt swelling device according to claim 1 is characterized in that,
Said protecgulum (3) is installed in the front end of said spring box (6), and is pressed into cylinder body (4), supports said the axis of the piston (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202780495U CN202225935U (en) | 2011-08-02 | 2011-08-02 | Crawler tensioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202780495U CN202225935U (en) | 2011-08-02 | 2011-08-02 | Crawler tensioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202225935U true CN202225935U (en) | 2012-05-23 |
Family
ID=46076537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202780495U Expired - Fee Related CN202225935U (en) | 2011-08-02 | 2011-08-02 | Crawler tensioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202225935U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104015824A (en) * | 2014-05-30 | 2014-09-03 | 天津柳工机械有限公司 | Integrated tension device and crawler-type walking machine with same |
| CN104015823A (en) * | 2014-05-30 | 2014-09-03 | 天津柳工机械有限公司 | Pull rod and expanding device with pull rod |
| CN105947005A (en) * | 2016-05-06 | 2016-09-21 | 江苏盖亚环境科技股份有限公司 | Caterpillar band tensioning mechanism for soil sampling and repairing integrated drilling machine |
| CN112590958A (en) * | 2020-12-18 | 2021-04-02 | 山推工程机械股份有限公司 | Maintainable tensioning device for engineering machinery crawler belt |
-
2011
- 2011-08-02 CN CN2011202780495U patent/CN202225935U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104015824A (en) * | 2014-05-30 | 2014-09-03 | 天津柳工机械有限公司 | Integrated tension device and crawler-type walking machine with same |
| CN104015823A (en) * | 2014-05-30 | 2014-09-03 | 天津柳工机械有限公司 | Pull rod and expanding device with pull rod |
| CN105947005A (en) * | 2016-05-06 | 2016-09-21 | 江苏盖亚环境科技股份有限公司 | Caterpillar band tensioning mechanism for soil sampling and repairing integrated drilling machine |
| CN112590958A (en) * | 2020-12-18 | 2021-04-02 | 山推工程机械股份有限公司 | Maintainable tensioning device for engineering machinery crawler belt |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202225935U (en) | Crawler tensioning device | |
| US9440692B2 (en) | Pin assembly for a tracked work vehicle suspension system | |
| US9452796B2 (en) | Suspension system for a tracked work vehicle | |
| CN201472505U (en) | Crawler tension device | |
| CN203996521U (en) | A kind of passive self adaptation caterpillar belt structure | |
| CN201484527U (en) | Caterpillar belt tightening device | |
| CN201472504U (en) | Crawler tension device | |
| CN105480315A (en) | Sound suppressed idler wheel assembly | |
| CN201703449U (en) | Track tensioning device | |
| CN105358347A (en) | Shock absorber for crawler | |
| CN201703450U (en) | Caterpillar tensioning device | |
| CN206187148U (en) | Tensioning device | |
| CN206679109U (en) | A kind of caterpillar type robot independent-suspension damping structure | |
| CN206766168U (en) | A kind of crawler unit of convenient regulation crawler belt | |
| CN105416426A (en) | Tensioning device for excavator crawler belt | |
| CN204472942U (en) | Track takeup | |
| CN202169972U (en) | Novel track tension device | |
| CN203064067U (en) | Track tension equipment | |
| KR101519208B1 (en) | A suspension device for compact track loader and a track loader having the suspension device | |
| CN204749781U (en) | Shock attenuation chassis of car | |
| CN103085903A (en) | Caterpillar band tensioning device | |
| CN106080747A (en) | For improving the device and method in rack and pinion steering gear service life | |
| CN206708295U (en) | A kind of diesel engine damping device | |
| CN204197095U (en) | Caterpillar belt tightening device | |
| CN203681687U (en) | Three-section type tensioning device for excavator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20120523 Termination date: 20160802 |