CN2801594Y - Tensioning device of harvestor caterpillar walking system - Google Patents
Tensioning device of harvestor caterpillar walking system Download PDFInfo
- Publication number
- CN2801594Y CN2801594Y CN 200520073275 CN200520073275U CN2801594Y CN 2801594 Y CN2801594 Y CN 2801594Y CN 200520073275 CN200520073275 CN 200520073275 CN 200520073275 U CN200520073275 U CN 200520073275U CN 2801594 Y CN2801594 Y CN 2801594Y
- Authority
- CN
- China
- Prior art keywords
- wheel shaft
- square tube
- ejection device
- wheel
- screw mandrel
- 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
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- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The utility model discloses a tensioning device of a running system of a crawler of a harvesting machine, which comprises tensioning wheels, a wheel shaft and a pushing device, wherein the two tensioning wheels are respectively installed at both ends of the wheel shaft; the pushing device which is perpendicular to the wheel shaft is connected to the middle part of the wheel shaft, and is fixed on a vehicle frame through a supporting frame. The utility model improves the existing hanging arm structure, the pushing device moves up from an extension shaft of the wheel shaft to the middle part of the wheel shaft, thereby, the utility model has the advantages that the stress situation of the wheel shaft and the pushing device can be improved, the damage of components can be reduced and the utility model has long service life.
Description
Technical field
The utility model relates to a kind of tracks of harvester running gear tightening device.
Background technology
In the prior art, the tightening device of tracks of harvester running gear comprises tension wheel, the wheel shaft of tension wheel extends to form projecting shaft to the vehicle frame direction, be connected with vertical with it ejection device on the projecting shaft, ejection device comprises outer square tube and interior square tube, the side of outer square tube is fixed on the vehicle frame, the termination of interior square tube and projecting shaft are fixed and are inserted in the outer square tube and play directional tagging, the another side of outer square tube is provided with the pushing tow screw mandrel and promotes projecting shaft, during operation, promote the purpose that projecting shaft reaches tensioned tracks with the pushing tow screw mandrel.But in actual use, projecting shaft and pushing tow screw mandrel very easily produce fracture, and its reason is the projecting shaft and the pushing tow screw mandrel stressing conditions very severe of this structure.
Summary of the invention
The purpose of this utility model is: a kind of tracks of harvester running gear tightening device is provided, existing cantilever design is improved, ejection device has been moved on to the middle part of wheel shaft from the prolongation axle of wheel shaft, thereby improved the stressing conditions of wheel shaft and ejection device greatly, reduce the damage of parts, prolonged service life.
The technical solution of the utility model is: a kind of tracks of harvester running gear tightening device, comprise tension wheel, wheel shaft, ejection device, described tension wheel has two two ends that are installed in wheel shaft respectively, the ejection device vertical with wheel shaft is connected the middle part of wheel shaft, and ejection device is fixed on the vehicle frame by support.
The further technical scheme of the utility model is: a kind of tracks of harvester running gear tightening device, comprise tension wheel, wheel shaft, ejection device, described tension wheel has two two ends that are installed in wheel shaft respectively, the ejection device vertical with wheel shaft is connected the middle part of wheel shaft, and ejection device is fixed on the vehicle frame by support; The outer square tube that described ejection device side and support are fixing, outer square tube interpolation is provided with interior square tube, the front end of interior square tube is connected and fixed by axle sleeve and wheel shaft, establish bearing between axle sleeve and the wheel shaft, the bottom of outer square tube is provided with the pushing tow screw mandrel, and the silk hole engagement of the front portion of pushing tow screw mandrel and interior square tube bottom is also stretched in the interior square tube, and the rear portion of pushing tow screw mandrel is provided with protruding circle and six-sided head, six-sided head stretches out beyond the circular hole of outer square tube bottom, and the diameter of protruding circle is greater than the internal diameter of circular hole and be positioned in the circular hole.
The utility model has the advantages that:
1. the utility model has moved on to ejection device the middle part of wheel shaft from the prolongation axle of wheel shaft, and the pushing tow screw mandrel is arranged on the bottom of outer square tube and interior square tube, improve the stressing conditions of wheel shaft and ejection device greatly, reduced the damage of parts, prolonged service life.
2. because ejection device is fastened on the middle part of wheel shaft, so tension wheel just must be installed in the two ends of wheel shaft, and the while has also been improved the wear pattern of tension wheel, has prolonged the service life of tension wheel.
Description of drawings
The utility model will be further described below in conjunction with drawings and Examples:
Fig. 1 is a structural representation of the present utility model.
Wherein: 1 tension wheel; 2 wheel shafts; 3 ejection devices; 4 supports; 5 vehicle frames; 6 outer square tubes; Square tube in 7; 8 axle sleeves; 9 bearings; 10 pushing tow screw mandrels; 11 holes; 12 protruding circles; 13 six-sided heads; 14 circular holes.
The specific embodiment
Embodiment: as shown in Figure 1, a kind of tracks of harvester running gear tightening device, comprise tension wheel 1, wheel shaft 2, ejection device 3, described tension wheel 1 has two two ends that are installed in wheel shaft 2 respectively, the ejection device 3 vertical with wheel shaft 2 is connected the middle part of wheel shaft 2, and ejection device 3 is fixed on the vehicle frame 5 by support 4; The outer square tube 6 that ejection device 3 sides and support 4 are fixed, square tube 7 in being inserted with in the outer square tube 6, the front end of interior square tube 7 is connected and fixed by axle sleeve 8 and wheel shaft 2, establish bearing 9 between axle sleeve 8 and the wheel shaft 2, the bottom of outer square tube 6 is provided with pushing tow screw mandrel 10, silk hole 11 engagements of the front portion of pushing tow screw mandrel 10 and interior square tube 7 bottoms are also stretched in the interior square tube 7, the rear portion of pushing tow screw mandrel 10 is provided with protruding circle 12 and six-sided head 13, six-sided head 13 stretches out beyond the circular hole 14 of outer square tube 6 bottoms, and the diameter of protruding circle 12 is greater than the internal diameter of circular hole 14 and be positioned in the circular hole 14.
During use, the six-sided head 13 with spanner rotary lifting screw mandrel 10 promptly can promote wheel shaft 2 and tension wheel 1, plays the effect of tensioned tracks.
Ejection device 3 also can other structure the device that plays the pushing tow effect.
The utility model has moved on to ejection device 3 middle part of wheel shaft 2 from the prolongation axle of wheel shaft 2, and pushing tow screw mandrel 10 is arranged on the bottom of outer square tube 6 and interior square tube 7, improve the stressing conditions of wheel shaft 2 and ejection device 3 greatly, reduced the damage of parts, prolonged service life; Because ejection device 3 is fastened on the middle part of wheel shaft 2, so tension wheel 1 just must be installed in the two ends of wheel shaft 2, and the while has also been improved the wear pattern of tension wheel 1, has prolonged the service life of tension wheel 1.
Claims (2)
1. tracks of harvester running gear tightening device, comprise tension wheel (1), wheel shaft (2), ejection device (3), it is characterized in that: described tension wheel (1) has two two ends that are installed in wheel shaft (2) respectively, the ejection device (3) vertical with wheel shaft (2) is connected the middle part of wheel shaft (2), and ejection device (3) is fixed on the vehicle frame (5) by support (4).
2. tracks of harvester running gear tightening device according to claim 1, it is characterized in that: the outer square tube (6) that described ejection device (3) side and support (4) are fixing, be inserted with interior square tube (7) in the outer square tube (6), the front end of interior square tube (7) is connected and fixed by axle sleeve (8) and wheel shaft (2), establish bearing (9) between axle sleeve (8) and the wheel shaft (2), the bottom of outer square tube (6) is provided with pushing tow screw mandrel (10), the silk hole (11) of the front portion of pushing tow screw mandrel (10) and interior square tube (7) bottom is meshed and is stretched in the interior square tube (7), the rear portion of pushing tow screw mandrel (10) is provided with protruding circle (12) and six-sided head (13), the circular hole (14) that six-sided head (13) stretches out outer square tube (6) bottom in addition, the diameter of protruding circle (12) is greater than the internal diameter of circular hole (14) and be positioned in the circular hole (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520073275 CN2801594Y (en) | 2005-06-29 | 2005-06-29 | Tensioning device of harvestor caterpillar walking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520073275 CN2801594Y (en) | 2005-06-29 | 2005-06-29 | Tensioning device of harvestor caterpillar walking system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2801594Y true CN2801594Y (en) | 2006-08-02 |
Family
ID=36846301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520073275 Expired - Fee Related CN2801594Y (en) | 2005-06-29 | 2005-06-29 | Tensioning device of harvestor caterpillar walking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2801594Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105947004A (en) * | 2016-02-18 | 2016-09-21 | 青岛克路德机器人有限公司 | Constant pressure tension device and tracked robot |
| CN105947003A (en) * | 2016-01-25 | 2016-09-21 | 青岛克路德机器人有限公司 | Tensioning device and tracked robot |
-
2005
- 2005-06-29 CN CN 200520073275 patent/CN2801594Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105947003A (en) * | 2016-01-25 | 2016-09-21 | 青岛克路德机器人有限公司 | Tensioning device and tracked robot |
| CN105947004A (en) * | 2016-02-18 | 2016-09-21 | 青岛克路德机器人有限公司 | Constant pressure tension device and tracked robot |
| CN105947004B (en) * | 2016-02-18 | 2019-04-02 | 青岛克路德机器人有限公司 | Constant pressure tensioning device and caterpillar type robot |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060802 Termination date: 20100629 |