CN201377571Y - Track travel reduction box - Google Patents
Track travel reduction box Download PDFInfo
- Publication number
- CN201377571Y CN201377571Y CN200920035451U CN200920035451U CN201377571Y CN 201377571 Y CN201377571 Y CN 201377571Y CN 200920035451 U CN200920035451 U CN 200920035451U CN 200920035451 U CN200920035451 U CN 200920035451U CN 201377571 Y CN201377571 Y CN 201377571Y
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- casing
- ring gear
- inner housing
- shell
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- Expired - Fee Related
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Abstract
The utility model discloses a track travel reducer comprising a hydraulic motor, a hydraulic control device, a reducer and a brake, wherein, the reducer includes an outer casing, an inner casing, a primary planet wheel mechanism and a secondary planet wheel mechanism; the primary planet wheel mechanism includes a primary internally toothed annulus; the secondary planet wheel mechanism includes a secondary internally toothed annulus; the hydraulic motor and the hydraulic control device are installed in a motor casing; the outer casing of the reducer comprises a right casing, an intermediate casing and a left casing; the primary internally toothed annulus is arranged in the right casing; the secondary internally toothed annulus is arranged in the intermediate casing; the left casing is installed on the inner casing through a bearing; the right casing, the intermediate casing and the left casing are arranged in sequence and fixed together through a bolt; and the motor casing is installed on the outer end surface of the left casing. The utility model not only facilitates the installation and repairs, but also has a long service life.
Description
Technical field
The utility model relates to a kind of speed reducer, particularly a kind of crawler travel speed reducer.
Background technique
A kind of crawler travel speed reducer that uses in the existing engineering machinery mainly is made of oil hydraulic motor, hydraulic control device, retarder and break.Retarder in this machine contains frame, inner housing, one-level planetary wheeling mechanism, secondary planet wheel and input shaft, and on inner housing, one, two planetary wheeling mechanisms all are positioned at the inside of frame to frame by Bearing Installation.Oil hydraulic motor and hydraulic control device are installed in the motor casing, and motor casing is installed in the inner housing of retarder.Because motor casing is installed in the inner housing, so inspection and maintenance is very inconvenient.Simultaneously owing in the inner housing motor casing is housed, and inner housing is subject to radial dimension, so the wall of inner housing can not do too thickly, and this has directly influenced the intensity of inner housing, thereby causes the damage of inner housing easily, and this has shortened the working life of speed reducer.Because the frame of retarder is made into whole structure shape, therefore one-level planetary wheeling mechanism, secondary planet be installed, and to take turns to the inside of frame cumbersome, and when break down in inside, maintenance is inconvenience also equally.
The model utility content
The technical problems to be solved in the utility model provides a kind of crawler travel speed reducer, and it not only is convenient to install and maintenance, and long service life.
For solving the problems of the technologies described above, the utility model crawler travel speed reducer, it contains oil hydraulic motor, hydraulic control device, retarder and break, retarder contains frame, inner housing, one-level planetary wheeling mechanism and secondary planet wheel mechanism, contain the one-level ring gear in the one-level planetary wheeling mechanism, contain the secondary ring gear in the secondary planet wheel mechanism, oil hydraulic motor and hydraulic control device are installed in the motor casing, the frame of described retarder comprises right shell body, middle shell and left shell, described one-level ring gear is arranged in the right shell body, described secondary ring gear is arranged in the middle shell, described left shell by Bearing Installation on inner housing, right shell body, middle shell is arranged in order with left shell and is in the same place by bolt, and described motor casing is installed on the exterior edge face of left shell.
Described one-level ring gear and the right shell body that is positioned at right shell body is made into overall structure, and described secondary ring gear and the middle shell that is positioned at middle shell is made into overall structure.
Because the frame of retarder is made of right shell body, middle shell and left shell three parts, and is arranged in order by bolt together, when break down in inside, only unload bolt and just can overhaul like this, therefore overhaul very convenient.Equally, because therefore frame is easy to the one-level ring gear is installed in the right shell body for dividing body structure, the secondary ring gear is installed in the middle shell, and is therefore easy for installation.Because the inner motor casing that oil hydraulic motor and hydraulic control device are housed is installed on the exterior edge face of inner housing of retarder, therefore having overcome the prior art motor casing is installed in the deficiency that causes the inspection and maintenance inconvenience in the inner housing.Simultaneously because motor casing is installed on the exterior edge face of inner housing of retarder, so the wall of inner housing can be made into thicker wall, improved the intensity of inner housing like this and avoided damage, thereby prolonged the working life of speed reducer.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
1. bolts in the accompanying drawing, 2. inner housing, 3. break, 4. motor casing, 5. output shaft, 6. hub splines, 7. input shaft, 8. secondary ring gear, 9. secondary planetary gear, 10. one-level ring gear, 11. primary planet pinions, 12. the primary planet pinion frame, 13. end caps, 14. one-level sun gears, 15. secondary sun gear, 16. secondary planetary gear framves, 17. sprocket wheels, 18. right shell body, 19. middle shells, 20. left shells.
Embodiment
In the accompanying drawing, the utility model crawler travel speed reducer contains oil hydraulic motor, hydraulic control device, retarder and break 3.Retarder contains frame, inner housing 2, one-level planetary wheeling mechanism, secondary planet wheel mechanism and input shaft 7.The one-level planetary wheeling mechanism contains one-level ring gear 10, primary planet pinion 11, primary planet pinion frame 12 and one-level sun gear 14, and the secondary planet wheel mechanism contains secondary ring gear 8, secondary planetary gear 9, secondary planetary gear frame 16 and secondary sun gear 15.Hydraulic motor output shaft 5 is connected by hub splines 6 with input shaft of speed reducer 7, and hub splines 6 is positioned at inner housing 2.One-level sun gear 14 is fixedly mounted on the input shaft 7, and secondary sun gear 15 is sleeved on the input shaft 7.The frame of retarder comprises right shell body 18, middle shell 19 and left shell 20, and one-level ring gear 10 is arranged in the right shell body 18, and secondary ring gear 8 is arranged in the middle shell 19, left shell 20 by Bearing Installation on inner housing 2.Right shell body 18, middle shell 19 and left shell 20 are arranged in order and are fixed together by bolt 1.Oil hydraulic motor and hydraulic control device are installed in the motor casing 4, and motor casing 4 is arranged on the exterior edge face of inner housing 2.Three primary planet pinions 11 are arranged on the primary planet pinion frame 12 by rotating shaft and bearing, the spline housing that primary planet pinion frame 12 central authorities are provided with is sleeved on the splined shaft that secondary sun gear 15 1 ends are provided with, three primary planet pinions 11 all with one- level ring gear 10 and 14 engagements of one-level sun gear.Three secondary planetary gears 9 are arranged on the secondary planetary gear frame 16 by rotating shaft and bearing, and three secondary planetary gears 9 all mesh with secondary ring gear 8 and secondary sun gear 15.Secondary planetary gear frame 16 is fixedly installed on the inner housing 2, and it also can make an overall structure with inner housing 2.The inner housing 2 of retarder is arranged on by bolt on the body of engineering machinery, and sprocket wheel 17 is fixed on the left shell 20 of retarder.Owing to the frame of retarder is made into the branch body structure of right shell body 18, middle shell 19 and left shell 20, and be arranged in order by bolt 1 and be fixed together, when break down in inside, only unload bolt 1 and just can overhaul like this, therefore overhaul very convenient.Equally, because therefore frame is easy to one-level ring gear 10 is installed in the right shell body 18 for dividing body structure, secondary ring gear 8 is installed in the middle shell 19, and is therefore easy for installation.In order to be convenient to install and maintenance more, the one-level ring gear 10 that is positioned at right shell body 18 can be made into overall structure with right shell body 18, and the secondary ring gear 8 that is positioned at middle shell 19 can be made into overall structure with middle shell 19.Simultaneously be installed in the right shell body 18 and secondary ring gear 8 is installed in operation in the middle shell 19, so saved manpower and reduced cost of production because of having saved one-level ring gear 10.Because the inner motor casing 4 that oil hydraulic motor and hydraulic control device are housed is installed on the exterior edge face of inner housing 2 of retarder, therefore overcoming has prior art motor casing 4 to be installed in the deficiency that causes the inspection and maintenance inconvenience in the inner housing 2.Simultaneously because motor casing 4 is installed on the exterior edge face of inner housing 2 of retarder, so the wall of inner housing 2 can be made into thicker wall, improved the intensity of inner housing 2 like this and avoided damage, thereby prolonged the working life of speed reducer greatly.During work, hydraulic motor output shaft 5 drives input shaft 7 by hub splines 6 rotates one-level sun gear 14, sun gear 14 drives primary planet pinion 11 and rotates, the rolling in one-level ring gear 10 that the rotation of primary planet pinion 11 forms, thereby make the spline housing on the primary planet pinion frame 12 drive secondary sun gear 15 rotations, secondary sun gear 15 drives secondary planetary gear 9 again and rotates, the rolling in secondary ring gear 8 that the rotation of secondary planetary gear 9 forms, be fixedly installed on because of secondary planetary gear frame 16 on the body of engineering machinery, finally make left shell 20 driving sprocket wheels 17 of retarder drive crawler travel.
Claims (2)
1. crawler travel speed reducer, it contains oil hydraulic motor, hydraulic control device, retarder and break, retarder contains frame, inner housing, one-level planetary wheeling mechanism and secondary planet wheel mechanism, contain the one-level ring gear in the one-level planetary wheeling mechanism, contain the secondary ring gear in the secondary planet wheel mechanism, oil hydraulic motor and hydraulic control device are installed in the motor casing, it is characterized in that: the frame of described retarder comprises right shell body, middle shell and left shell, described one-level ring gear is arranged in the right shell body, described secondary ring gear is arranged in the middle shell, described left shell by Bearing Installation on inner housing, right shell body, middle shell is arranged in order with left shell and is in the same place by bolt, and described motor casing is installed on the exterior edge face of left shell.
2. a kind of crawler travel speed reducer according to claim 1 is characterized in that: described one-level ring gear and the right shell body that is positioned at right shell body is made into overall structure, and described secondary ring gear and the middle shell that is positioned at middle shell is made into overall structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920035451U CN201377571Y (en) | 2009-03-23 | 2009-03-23 | Track travel reduction box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920035451U CN201377571Y (en) | 2009-03-23 | 2009-03-23 | Track travel reduction box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201377571Y true CN201377571Y (en) | 2010-01-06 |
Family
ID=41517679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920035451U Expired - Fee Related CN201377571Y (en) | 2009-03-23 | 2009-03-23 | Track travel reduction box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201377571Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384223A (en) * | 2011-10-28 | 2012-03-21 | 宁波赛欧液压传动有限公司 | Travelling, driving and heat dissipating device for wheels of vehicle for coal mining |
-
2009
- 2009-03-23 CN CN200920035451U patent/CN201377571Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384223A (en) * | 2011-10-28 | 2012-03-21 | 宁波赛欧液压传动有限公司 | Travelling, driving and heat dissipating device for wheels of vehicle for coal mining |
| CN102384223B (en) * | 2011-10-28 | 2015-08-19 | 宁波赛欧液压传动有限公司 | The wheel of vehicle walking transmission of a kind of colliery and sink |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGSU CHI XIANG PRECISION GEAR CO., LTD. Free format text: FORMER NAME: JIANGSU CHIXIANG PRECISION GEAR CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 224015, Jiangsu, Yancheng City Province Road, No. 68 (Zhang Zhuang Industrial Park) Patentee after: JIANGSU CHIXIANG PRECISION GEAR CO., LTD. Address before: 224015, Jiangsu, Yancheng City Province Road, No. 68 (Zhang Zhuang Industrial Park) Patentee before: Jiangsu Chixiang Precision Gears Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100106 Termination date: 20150323 |
|
| EXPY | Termination of patent right or utility model |