CN102765430A - Combined tensioning mechanism for caterpillar band - Google Patents
Combined tensioning mechanism for caterpillar band Download PDFInfo
- Publication number
- CN102765430A CN102765430A CN201110127144XA CN201110127144A CN102765430A CN 102765430 A CN102765430 A CN 102765430A CN 201110127144X A CN201110127144X A CN 201110127144XA CN 201110127144 A CN201110127144 A CN 201110127144A CN 102765430 A CN102765430 A CN 102765430A
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- chassis
- longeron
- caterpillar band
- tensioning
- tightening device
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Abstract
The invention relates to a combined tensioning mechanism for a caterpillar band, which meets the special requirement on the practical tension variation by a caterpillar band assembly when a large engineering machinery caterpillar band chassis is on a smooth road surface and under a field pathless condition. The mechanism consists of a caterpillar band assembly, a tensioning device, a longitudinal beam and the like, wherein the sliding rail of the tensioning device and support lugs at the two sides of the support are arranged in a groove of a fender at the end part of the longitudinal beam; vertical plates at the two sides of the fender are respectively provided with a rectangular hole and a bracket used for installing and fixing an adjustable pad and are connected by bolts; and the exposed end of an oil cylinder piston rod at the other end is arranged in the round hole of the vertical plate of the longitudinal beam. When the caterpillar band requires smaller tensioning force, grease is filled into the oil cylinder of the tensioning device to regulate the tensioning force. In the chassis driving process, once the impact load of the chassis exceeds the limit of the chassis, an elastic gap is eliminated, the balance of extra-large tensioning force is directly borne by the support lugs arranged at the two sides of the support and the adjustable pad between the brackets of the groove of the longitudinal beam fender so as to maintain the normal work of the chassis.
Description
Technical field
The present invention relates to contain the rotary drilling rig chassis of caterpillar belt structure; Realize the adjustment of the elementary tensile force of crawler belt through the stroke that changes oil cylinder in the tightening device; When this bobbin movement impact load is excessive; Through presetting the rigidity that mechanism changes tightening device, satisfy the balance of actual load, be particularly useful for the crawler body of big-and-middle-sized construction machinery and equipment.
Background technology
At present, in order to ensure the ride comfort of motion during the rotary drilling rig walking, prevent that the crawler belt overrelaxation from causing drive wheel to jump tooth, great majority contain in the girder work of crawler belt parts engineering machinery chassis, are equipped with the adjustable special construction of track tensioning force.During going in the chassis; The phenomenon that can't normally walk in case crawler belt overrelaxation or generation drive wheel jumping tooth occur; Must in time in the oil cylinder of tension part, replenish grease,, guarantee that track tensioning force maintains in the reasonable range through improving the predetermincd tension of compression spring.
Described track tensioning force adjustable structure mainly is made up of tensioning hydro-cylinder, compression spring.In use, at first in tensioning hydro-cylinder, inject grease, this spring is produced certain amount of compression (predetermincd tension).In driving process, when the impulsive force that crawler belt produced passed to the spring in this structure through guide wheel, this spring produced corresponding distortion thereupon and absorbs its energy, simultaneously impulsive force is reduced to bottom line, thereby guarantees this chassis stable working.Along with work mechanism complete machine matter (weight) amount constantly increases, the impulsive force that its chassis is produced in motion process also can significantly increase thereupon, and at this moment, the comformability of compression spring can't satisfy the requirement of actual job operating mode.In the environment of evenness of road surface; During the microshock campaign is crossed; How to realize the elastic buffer of track takeup,, occur in the walking process when the super large impact load when equipment gets into rough construction site; All parts are not damaged how to guarantee satisfy using simultaneously by tightening device, have gone out a new difficult problem for again this structure design.
Summary of the invention
The purpose of this invention is to provide a kind of simple in structure, reliable and practical; Can be widely used in the chassis of various heavy engineering machinery caterpillar belt structures; The primary stage of track tensioning force adjustment is taked the elastic tension structure; In case the actual tensile force of crawler belt surpasses setting value, then changes to the rigidity tensioning, keep the crawler belt combination stretching device of this chassis normal operation all the time.
The objective of the invention is to realize like this: this mechanism is made up of parts such as track rail assembly, tightening device, caterpillar wheel, track carrying wheel, adjusting pad, longerons.Its tightening device is installed in the inside of longeron casing, and caterpillar wheel, track carrying wheel are installed in respectively on the fixed pan up and down of longeron, and track rail assembly holds this longeron along its length and arranges.
Adjusting pad in the said mechanism, by the shape unanimity but some different rectangular steel plates of thickness form, can increase and decrease its quantity and change different thicknesss of slab according to the needs of actual tensile force in the use, to realize the adjustment of the best tensile force of crawler belt.Midway location (plate width direction) near steel plate one end is also designed circular hole, so that the installation of this steel plate is with fixing.The steel plate that directly contacts with tightening device; Be thickness of slab maximum in all steel plates; Its numerical value should be greater than associated bolt head, gasket thickness construction parameter sum; And symmetric position also leaves two bigger circular holes about the inboard of circular hole, and all steel plates (adjusting pad) are through being bolted on the longeron.Tightening device is made up of guide wheel, spring assembly, and this assembly is assembled into one by bearing, spring, cylinder block, piston rod, fuel feeding valve.The slide rail of the front end of both sides journal stirrup and guide wheel passes through bolted connection together in its seat structure, and the rear end of this journal stirrup of rigidity tensioning state contacts with adjusting pad.The exposed junction of oil cylinder piston bar in the spring assembly is installed in the circular hole of longeron riser.The journal stirrup of the slide rail of guide wheel both sides and above-mentioned bearing both sides; Be installed in the groove of longeron end mudwing, on the riser of mudwing both sides, with the cooresponding position of this groove; Leave the rectangular opening that can supply to install adjusting pad, the rear end in this hole is welded with and can installs, the support of fixed adjusting pad.
During installation, put tightening device in the longeron casing into from an end of longeron mudwing at first as required, guarantee the exposed junction of oil cylinder piston bar, place the circular hole of longeron riser, and keep its fuel feeding valve to point to the outside of longeron; Caterpillar wheel, track carrying wheel then are installed; Again track rail assembly is flattened and places ground, with institute's stack-mounted longeron parts be positioned over track rail assembly above, accomplish the connection of crawler belt head and the tail bearing pin then.Continuous filling grease in the fuel feeding valve on being installed in the oil cylinder piston bar; Increase along with tightening device length; At its bearing both sides journal stirrup and be welded between the support at longeron rectangular opening place and will form certain clearance; Need in time to place the steel plate (adjusting pad) of respective numbers this moment, and guarantee to be positioned at tightening device both sides adjusting pad, and the gap, front and back between the journal stirrup of above-mentioned bearing both sides is identical.When track tensioning force meets the requirements, use bolt, packing ring that adjusting pad is fixed on the longeron.
Advantage of the present invention solves the large-scale engineering machinery crawler body, and track rail assembly and can in time be adjusted the requirement of the greatly different variable quantity of actual tensile force under mild road surface and open-air no travel permit spare; During going in the chassis, can avoid tightening device because of bearing excessive axial load, a difficult problem that causes part to damage and can't continue to construct, this stretching device is simple in structure, dependable performance, easy to maintenance.
Be described further below in conjunction with accompanying drawing and embodiment.
Description of drawings
Fig. 1 is one embodiment of the present of invention constructionals drawing.
Fig. 2 is to view among Fig. 1.
The specific embodiment
Be installed into the inside of longeron (5) to tightening device (2) from an end as required, and guarantee that guide wheel two wood side-guides correctly get in the groove of longeron, make the exposed junction of oil cylinder piston bar simultaneously, be installed in the circular hole of longeron riser its fuel feeding valve directed outside; Then at the last lower plane of longeron (5) caterpillar wheel (4) and track carrying wheel (5) are installed respectively; Track rail assembly (1) flattening is placed ground, be placed on together on this assembly, accomplish the connection of this crawler belt head and the tail bearing pin immediately just assembling all-in-one-piece longeron parts.The grease of then in the oil cylinder of tightening device, annotating; Continuous increase along with this parts total length; At its bearing both sides journal stirrup and be welded between the support at longeron rectangular opening place and will form certain clearance, according to the size in gap adjusting pad (3) is installed in time, notice that thickness of slab is maximum and leave two steel plates (adjusting pad) than big hole; Installation is near the position of bearing, and all the other steel plates are installed following closely.When preset clearance adjustment in both sides meets the requirements, use bolt (7) and packing ring (8), adjusting pad (3) is fixed on the longeron (5).
Claims (3)
1. one kind is widely used in the chassis that all kinds of large-scale engineering machineries contain caterpillar belt structure; Satisfy track tensioning force and change the crawler belt combination stretching device that great disparity requires; It is characterized in that: this mechanism comprises track rail assembly, tightening device, longeron, caterpillar wheel, track carrying wheel, bolt, packing ring, adjusting pad; Its tightening device is installed in the inside of longeron casing, and caterpillar wheel, track carrying wheel are installed in respectively on the fixed pan up and down of longeron, and track rail assembly holds this longeron along its length and arranges.
2. crawler belt combination stretching device according to claim 1 is characterized in that containing in the tightening device guide wheel and spring assembly.
3. crawler belt combination stretching device according to claim 1; It is characterized in that adjusting pad is consistent by shape; Some different rectangular steel plates of thickness are formed; Near the steel plate of bearing both sides journal stirrup in the tightening device, its thickness of slab surpasses bolt head thickness and gasket thickness sum, and leaves a mounting hole and two bigger circular holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110127144XA CN102765430A (en) | 2011-05-05 | 2011-05-05 | Combined tensioning mechanism for caterpillar band |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110127144XA CN102765430A (en) | 2011-05-05 | 2011-05-05 | Combined tensioning mechanism for caterpillar band |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102765430A true CN102765430A (en) | 2012-11-07 |
Family
ID=47093065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110127144XA Pending CN102765430A (en) | 2011-05-05 | 2011-05-05 | Combined tensioning mechanism for caterpillar band |
Country Status (1)
| Country | Link |
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| CN (1) | CN102765430A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103963859A (en) * | 2014-05-20 | 2014-08-06 | 苏州新协力特种工业模板有限公司 | Walking frame used for large production line |
| CN104132764A (en) * | 2014-08-14 | 2014-11-05 | 中联重科股份有限公司 | Caterpillar band tensioning force measuring device and caterpillar band vehicle comprising caterpillar band tensioning force measuring device |
| CN106080821A (en) * | 2016-08-16 | 2016-11-09 | 徐工集团工程机械股份有限公司 | A kind of crawling traction transport vehicle and tensioner thereof |
| CN108128362A (en) * | 2017-12-26 | 2018-06-08 | 安徽奥利休闲农业发展有限公司 | A kind of track takeup |
| CN110481663A (en) * | 2019-09-24 | 2019-11-22 | 履地科技(天津)有限公司 | A kind of self-balancing clamping system and tension structure |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55160670A (en) * | 1979-04-27 | 1980-12-13 | Hitachi Constr Mach Co Ltd | Tension adjuster for caterpillar |
| JPH04133883A (en) * | 1990-09-27 | 1992-05-07 | Hitachi Constr Mach Co Ltd | Tension adjusting device for crawler belt |
| US5254047A (en) * | 1991-11-12 | 1993-10-19 | Joy Technologies Inc. | Chain take-up apparatus |
| US20090102282A1 (en) * | 2007-10-18 | 2009-04-23 | Joseph Voegele Ag | Crawler track |
| CN101513901A (en) * | 2008-02-11 | 2009-08-26 | 马尼托瓦克起重机有限公司 | Track connection system for mobile vehicles, including lift cranes |
| CN101844588A (en) * | 2010-05-20 | 2010-09-29 | 北京市三一重机有限公司 | Crawler tension device and crawler-type engineering machinery |
| CN201733613U (en) * | 2010-05-12 | 2011-02-09 | 株式会社久保田 | Traveling device of combined harvester |
| CN202022257U (en) * | 2011-04-17 | 2011-11-02 | 徐州徐工基础工程机械有限公司 | Track rigidity tensioning mechanism |
| CN202071915U (en) * | 2011-05-05 | 2011-12-14 | 徐州徐工基础工程机械有限公司 | Novel caterpillar belt tensioning mechanism |
| CN102745272A (en) * | 2011-04-17 | 2012-10-24 | 徐州徐工基础工程机械有限公司 | Engineering mechanical chassis caterpillar track tension device |
-
2011
- 2011-05-05 CN CN201110127144XA patent/CN102765430A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55160670A (en) * | 1979-04-27 | 1980-12-13 | Hitachi Constr Mach Co Ltd | Tension adjuster for caterpillar |
| JPH04133883A (en) * | 1990-09-27 | 1992-05-07 | Hitachi Constr Mach Co Ltd | Tension adjusting device for crawler belt |
| US5254047A (en) * | 1991-11-12 | 1993-10-19 | Joy Technologies Inc. | Chain take-up apparatus |
| US20090102282A1 (en) * | 2007-10-18 | 2009-04-23 | Joseph Voegele Ag | Crawler track |
| CN101513901A (en) * | 2008-02-11 | 2009-08-26 | 马尼托瓦克起重机有限公司 | Track connection system for mobile vehicles, including lift cranes |
| CN201733613U (en) * | 2010-05-12 | 2011-02-09 | 株式会社久保田 | Traveling device of combined harvester |
| CN101844588A (en) * | 2010-05-20 | 2010-09-29 | 北京市三一重机有限公司 | Crawler tension device and crawler-type engineering machinery |
| CN202022257U (en) * | 2011-04-17 | 2011-11-02 | 徐州徐工基础工程机械有限公司 | Track rigidity tensioning mechanism |
| CN102745272A (en) * | 2011-04-17 | 2012-10-24 | 徐州徐工基础工程机械有限公司 | Engineering mechanical chassis caterpillar track tension device |
| CN202071915U (en) * | 2011-05-05 | 2011-12-14 | 徐州徐工基础工程机械有限公司 | Novel caterpillar belt tensioning mechanism |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103963859A (en) * | 2014-05-20 | 2014-08-06 | 苏州新协力特种工业模板有限公司 | Walking frame used for large production line |
| CN104132764A (en) * | 2014-08-14 | 2014-11-05 | 中联重科股份有限公司 | Caterpillar band tensioning force measuring device and caterpillar band vehicle comprising caterpillar band tensioning force measuring device |
| CN106080821A (en) * | 2016-08-16 | 2016-11-09 | 徐工集团工程机械股份有限公司 | A kind of crawling traction transport vehicle and tensioner thereof |
| CN108128362A (en) * | 2017-12-26 | 2018-06-08 | 安徽奥利休闲农业发展有限公司 | A kind of track takeup |
| CN110481663A (en) * | 2019-09-24 | 2019-11-22 | 履地科技(天津)有限公司 | A kind of self-balancing clamping system and tension structure |
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Application publication date: 20121107 |