CN102700639A - Crawler-type travel system for skid-steer loader - Google Patents
Crawler-type travel system for skid-steer loader Download PDFInfo
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- CN102700639A CN102700639A CN2012101971259A CN201210197125A CN102700639A CN 102700639 A CN102700639 A CN 102700639A CN 2012101971259 A CN2012101971259 A CN 2012101971259A CN 201210197125 A CN201210197125 A CN 201210197125A CN 102700639 A CN102700639 A CN 102700639A
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- guide wheel
- wheel
- crawler
- fork body
- rack
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Abstract
The invention discloses a crawler-type travel system for a skid-steer loader. The crawler-type travel system comprises a drive wheel, a guide wheel assembly, a rack, a bearing wheel and a crawler belt, wherein the guide wheel assembly comprises a guide wheel, a tension spring and a fork body, the guide wheel is hinged to the front end of the fork body, and the telescopic end of the tension spring is in close contact with the tail part of the fork body; the rack comprises a bracket for mounting the bearing wheel, a housing fixed to the bracket and a sliding groove fixed to the front end of the rack; the fork body and the guide wheel are mounted in the sliding groove at the front end of the rack; and the diameter of the guide wheel is smaller than that of the drive wheel. The crawler-type travel system has the benefits as follows: a two-wheel one-belt structure with the guide wheel and the drive wheel is adopted, so that the wrap angle of the drive wheel is increased and the service life of the crawler belt is prolonged; the stability of the whole machine is improved by reducing the diameter of the guide wheel; and the structure improvement of the rack can reduce the accumulation of earth.
Description
Technical field
The present invention relates to a kind of endless track installation, particularly a kind ofly under equal conditions can improve complete machine stability and can improve the crawler belt crawler type glide steering loader running gear in service life.
Background technology
The running gear of crawler type glide steering loader is the triangular structure that adopts the drive wheel height to put basically at present, and this structure comprises drive wheel, preceding guide wheel, back guide wheel, caterpillar wheel and tightening device and crawler belt.Some company also is provided with track carrying wheel as required on this basis, forms so-called " four-wheel one band " structure.But this drive wheel setting and preceding guide wheel, the back structures shape that is triangularly arranged of guide wheel the drive wheel cornerite diminish, the triangular structure crawler belt can produce the bending of three places simultaneously, therefore can cause shorten the service life of crawler belt.
Following maximum weight that can promote of situation that the load of tumbling is tumbled before not taking place when being construction machinery and equipment lifting weight is the important indicator of weighing the complete machine performance.The load of tumbling is big more, and complete machine stability is high more.The load of tumbling of crawler type glide steering loader is that the center of guide wheel in the past is a fulcrum, the maximum load that complete machine does not lean forward and can bear.The position of the preceding guide wheel of the caterpillar system of crawler type glide steering loader receives the restriction of equipment structure, thereby can't further reduce the purpose that the load arm of force improves the magnitude of load of tumbling to the load center of gravity near reaching.
Summary of the invention
Goal of the invention: the purpose of this invention is to provide and a kind ofly not only improve complete machine stability but also can improve the crawler belt crawler type glide steering loader running gear in service life.
Technical scheme: a kind of crawler type glide steering loader running gear; Comprise drive wheel, guide wheel assembly, stand, caterpillar wheel and crawler belt; Said guide wheel assembly comprises guide wheel, tensioning spring and fork body; Said guide wheel is articulated in fork body front end, flexible end of tensioning spring and fork body afterbody closed contact; Said stand comprises the support that is used to install caterpillar wheel, be fixed in the housing of support top and be fixed on the chute of stand front end; Said fork body is installed in the chute of stand front end together with guide wheel; The diameter of guide wheel is less than the diameter of drive wheel.Crawler belt forms the continuous endless track installation of annular around drive wheel, caterpillar wheel and guide wheel; Because the restriction crawler belt of complete machine structure can not be interfered with scraper bowl, the center of guide wheel is for estimating the tumble fulcrum of load of complete machine, and the center of the more little guide wheel of diameter of guide wheel is more to reach; The arm of force L1 of load is more little; Machine gravity arm of force L2 is big more, and according to principle of moment balance, the load of tumbling that complete machine can bear is just big more.Simultaneously because this endless track installation has adopted a guide wheel to add the structure of a drive wheel, so the drive wheel cornerite is bigger, has improved the service life of crawler belt.
Said housing cross-sectional plane is a right-angled trapezium, and the inclined-plane of said housing is towards the outside of complete machine; Said tensioning spring is positioned at enclosure interior, and the installation site of said tensioning spring is to the inboard biasing of complete machine.The environment of crawler type glide steering loader work often is the heavy road face, so is very easy to gather earth between stand top and the crawler belt, thereby influences the service life of crawler belt.In order to reduce the accumulation of earth, the width on plane on the housing of stand will strengthen right-angled trapezium when design inclined-plane reduces, but the tensioning spring of enclosure interior can interfere with the inclined-plane, so tensioning spring when mounted need be to the inboard biasing of complete machine.
Beneficial effect: the present invention adopts a guide wheel to add two of a drive wheel and takes turns a band structure and increased the drive wheel cornerite and improved crawler belt service life; Improved the stability of complete machine through the diameter that reduces guide wheel; The improvement of horse structure can reduce the accumulation of earth.
Description of drawings
Fig. 1 is the structural representation of endless track installation of the present invention;
Fig. 2 removes the assembling scheme drawing of crawler belt directing assembly for endless track installation of the present invention;
Fig. 3 removes the birds-eye view that crawler belt and housing parts are cut open for endless track installation of the present invention.
The specific embodiment
As shown in the figure; A kind of crawler type glide steering loader running gear; Comprise drive wheel 1, guide wheel assembly 2, stand 3, caterpillar wheel 4 and crawler belt 5; Said guide wheel assembly 2 comprises guide wheel 21, tensioning spring 22 and fork body 23, and said guide wheel 21 is articulated in fork body 23 front ends, tensioning spring 22 flexible ends and fork body 23 afterbody closed contacts; Said stand 3 comprises the support 31 that is used to install caterpillar wheel 4, be fixed in the housing 32 of support 31 tops and be fixed on the chute 33 of stand 3 front ends; Said fork body 23 is installed in the chute 33 of stand 3 front ends together with guide wheel 21; The diameter of guide wheel 21 is less than the diameter of drive wheel 1.Crawler belt 5 forms the continuous endless track installation of annular around drive wheel 1, caterpillar wheel 4 and guide wheel 21; Because the restriction crawler belt 5 of complete machine structure can not be interfered with scraper bowl, the center of guide wheel 21 is for estimating the tumble fulcrum of load of complete machine, the diameter of guide wheel 21 more the center of introductory note guide wheel 21 more to reach; The arm of force L1 of load is more little; Machine gravity arm of force L2 is big more, and according to principle of moment balance, the load of tumbling that complete machine can bear is just big more; Facts have proved that the guide wheel diameter narrows down to 400 millimeters complete machines load of tumbling by 630 millimeters and can improve 13%.Simultaneously because this endless track installation has adopted a guide wheel 21 to add the structure of a drive wheel 1, so drive wheel 1 cornerite is bigger, has improved the service life of crawler belt 5.
Said housing 32 cross-sectional planes are right-angled trapezium, and the inclined-plane of said housing 32 is towards the outside of complete machine; Said tensioning spring 22 is positioned at housing 32 inside, and the installation site of said tensioning spring 22 is to the inboard biasing of complete machine.The environment of crawler type glide steering loader work often is the heavy road face, so is very easy to gather earth between stand 3 tops and the crawler belt 5, thereby influences the service life of crawler belt 5.In order to reduce the accumulation of earth, the width on plane on the housing 32 of stand 3 will strengthen right-angled trapezium when design inclined-plane reduces, but housing 32 in-to-in tensioning springs 22 can and the inclined-plane interfere, so tensioning spring 22 when mounted need be to the inboard biasing of complete machine.
Claims (2)
1. crawler type glide steering loader running gear; Comprise drive wheel (1), guide wheel assembly (2), stand (3), caterpillar wheel (4) and crawler belt (5); It is characterized in that: said guide wheel assembly (2) comprises guide wheel (21), tensioning spring (22) and fork body (23); Said guide wheel (21) is articulated in fork body (23) front end, flexible end of tensioning spring (22) and fork body (23) afterbody closed contact; Said stand (3) comprises the support (31) that is used to install caterpillar wheel (4), be fixed in the housing (32) of support (31) top and be fixed on the chute (33) of stand (3) front end; Said fork body (23) is installed in the chute (33) of stand (3) front end together with guide wheel (21); The diameter of guide wheel (21) is less than the diameter of drive wheel (1).
2. crawler type glide steering loader running gear as claimed in claim 1 is characterized in that: said housing (32) cross-sectional plane is a right-angled trapezium, and the inclined-plane of said housing (32) is towards the outside of complete machine; Said tensioning spring (22) is positioned at housing (32) inside, and the installation site of said tensioning spring (22) is to the inboard biasing of complete machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101971259A CN102700639A (en) | 2012-06-15 | 2012-06-15 | Crawler-type travel system for skid-steer loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101971259A CN102700639A (en) | 2012-06-15 | 2012-06-15 | Crawler-type travel system for skid-steer loader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102700639A true CN102700639A (en) | 2012-10-03 |
Family
ID=46893793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101971259A Pending CN102700639A (en) | 2012-06-15 | 2012-06-15 | Crawler-type travel system for skid-steer loader |
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| Country | Link |
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| CN (1) | CN102700639A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111929051A (en) * | 2020-08-21 | 2020-11-13 | 三一重机有限公司 | Guide wheel endurance test system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4836318A (en) * | 1987-08-28 | 1989-06-06 | Caterpillar Inc. | Track roller frame assembly |
| US6120405A (en) * | 1998-01-06 | 2000-09-19 | Caterpillar Inc. | Drive sprocket which has rotating members which are engaged by drive lugs of a track |
| CN102152816A (en) * | 2011-03-22 | 2011-08-17 | 三一重机有限公司 | Caterpillar tensioning and buffering device for caterpillar type walking machinery |
| CN102390445A (en) * | 2011-10-10 | 2012-03-28 | 江苏柳工机械有限公司 | High-mounted crawler track walking system with suspended shock-absorbing device |
| CN202911826U (en) * | 2012-06-15 | 2013-05-01 | 江苏柳工机械有限公司 | Crawler type sliding steering loading machine traveling system |
-
2012
- 2012-06-15 CN CN2012101971259A patent/CN102700639A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4836318A (en) * | 1987-08-28 | 1989-06-06 | Caterpillar Inc. | Track roller frame assembly |
| US6120405A (en) * | 1998-01-06 | 2000-09-19 | Caterpillar Inc. | Drive sprocket which has rotating members which are engaged by drive lugs of a track |
| CN102152816A (en) * | 2011-03-22 | 2011-08-17 | 三一重机有限公司 | Caterpillar tensioning and buffering device for caterpillar type walking machinery |
| CN102390445A (en) * | 2011-10-10 | 2012-03-28 | 江苏柳工机械有限公司 | High-mounted crawler track walking system with suspended shock-absorbing device |
| CN202911826U (en) * | 2012-06-15 | 2013-05-01 | 江苏柳工机械有限公司 | Crawler type sliding steering loading machine traveling system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111929051A (en) * | 2020-08-21 | 2020-11-13 | 三一重机有限公司 | Guide wheel endurance test system |
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121003 |