CN220416132U - Coplanarity adjusting structure of tensioning wheel - Google Patents
Coplanarity adjusting structure of tensioning wheel Download PDFInfo
- Publication number
- CN220416132U CN220416132U CN202321529247.3U CN202321529247U CN220416132U CN 220416132 U CN220416132 U CN 220416132U CN 202321529247 U CN202321529247 U CN 202321529247U CN 220416132 U CN220416132 U CN 220416132U
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- tensioning
- tensioning wheel
- belt pulley
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- sleeve
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- 230000005540 biological transmission Effects 0.000 claims abstract description 19
- 238000006073 displacement reaction Methods 0.000 claims abstract description 3
- 238000010030 laminating Methods 0.000 claims abstract description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model provides a tension pulley adjusting coplanar structure, which comprises a transmission case, a belt pulley shaft rotatably connected with the transmission case, and a belt pulley sleeved on the belt pulley shaft and fixedly connected with the belt pulley shaft. The tensioning arm with transmission case fixed connection, the tensioning arm contains tensioning arm board and sleeve, and the tensioning shaft passes the sleeve can be in the sleeve is internal along axial displacement, and the bearing housing is established tensioning shaft is last, tensioning wheel interior round surface with the laminating of bearing excircle face. The spring is sleeved on the tensioning wheel shaft and is positioned between the tensioning arm and the tensioning wheel. The fastening nut is arranged at one end of the tensioning wheel shaft far away from the tensioning wheel. Due to the arrangement of the spring and the fastening nut, the tensioning wheel can axially move along the tensioning wheel shaft, so that the coplanarity of the transmission case belt pulley, the engine belt pulley and the tensioning wheel can be quickly and simply adjusted, and the beneficial effects of reducing the coplanarity adjustment difficulty of the transmission case belt pulley, the engine belt pulley and the tensioning wheel and improving the working efficiency are achieved.
Description
Technical Field
The utility model relates to the technical field of agricultural machinery, in particular to a coplanar structure for adjusting a tensioning wheel.
Background
The crawler-type grain combine harvester in domestic and foreign markets at present is mainly divided into a longitudinal axial-flow combine harvester and a transverse axial-flow combine harvester, which are all composed of a cutting table for conveying, threshing, a granary, a chassis, a control part and a hydraulic electric appliance part, wherein a grain unloading transmission part in the granary part is substantially similar, and work is transmitted to a grain unloading belt pulley through a belt pulley end of an engine to drive an auger to realize crop conveying.
The utility model discloses a 360-degree rotary grain unloading wheel type machine with the bulletin number of CN215827899U, which is named as an upturned grain bin wheel type machine, wherein the machine mainly adopts two types of tensioning wheel structures shown in fig. 1 or 2, the tensioning wheel of fig. 1 is fixed on a chassis cross beam, coplanarity adjustment of riveting the tensioning wheel, a grain unloading belt wheel and an engine belt wheel cannot be carried out at the same time, and deviation exists; the tensioning wheel structure of fig. 2 can be finely adjusted in a small range through a long waist hole arranged on the granary, which is superior to the structure of fig. 1, but when the tensioning wheel and other tensioning wheels are required to be adjusted to be coplanar, the granary needs to be opened for operation, and the granary is relatively complicated.
Disclosure of Invention
In order to solve the problem that the coplanarity adjustment is complicated in the prior art.
The utility model provides a coplanar structure for adjusting a tensioning wheel. The utility model is realized by the following technical scheme:
the utility model provides a take-up pulley adjustment coplanarity structure, includes the transmission case, the belt pulley axle pass through the bearing with the transmission case rotatable coupling, the belt pulley cover is established belt pulley epaxial and in belt pulley axle fixed connection. Tensioning arm with transmission case fixed connection, tensioning arm contains tensioning arm board and sleeve, tensioning arm board and sleeve fixed connection, tensioning shaft pass the sleeve and can follow axial displacement in the sleeve, the bearing housing is established tensioning shaft is last, tensioning wheel interior round surface with the laminating of bearing excircle face. The spring is sleeved on the tensioning wheel shaft and is positioned between the tensioning arm and the tensioning wheel, one end of the spring is connected with the tensioning wheel, the other end of the spring is connected with the sleeve, the length of the spring exceeds the coplanarity adjusting range, and the fastening nut is arranged at one end, far away from the tensioning wheel, of the tensioning wheel shaft.
Further, a thin nut is sleeved on the tensioning wheel shaft and is in contact with the fastening nut.
Further, the fastening nut is a hexagonal nut.
Furthermore, the fastening nut and the thin nut screw teeth are all left-handed.
Further, the fastening nut and the thin nut are thin thread nuts.
Further, the tensioning arm plate is welded with the sleeve in a connecting mode.
Further, the through hole in the sleeve is a threaded hole, the size of the threaded hole is consistent with that of the thread on the tensioning wheel shaft, and the sleeve is radially provided with a fastening screw.
Further, the fastening screw is preferably an inner hexagonal cone end fastening screw.
Due to the arrangement of the spring and the fastening nut, the tensioning wheel can axially move along the tensioning wheel shaft, so that the coplanarity of the transmission case belt pulley, the engine belt pulley and the tensioning wheel can be quickly and simply adjusted, and the beneficial effects of reducing the coplanarity adjustment difficulty of the transmission case belt pulley, the engine belt pulley and the tensioning wheel and improving the working efficiency are achieved.
Advantages and features of the utility model will be illustrated and explained by the following non-limiting description of preferred embodiments, given by way of example only with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic view of a first construction of a prior art tensioner assembly.
Fig. 2 is a schematic diagram of a second construction of a prior art tensioner assembly.
Fig. 3 is a schematic overall structure of a first embodiment of the present utility model.
Fig. 4 is an enlarged view of a portion of a tensioning wheel adjustment structure according to a second embodiment of the present utility model.
The figures indicate:
1. a transmission case; 2. a belt pulley; 3. tensioning the wheel axle; 4. a tensioning arm; 5. a tensioning wheel; 6. a bearing; 7. a fastening nut; 8. a thin nut; 9. an engine pulley; 10. a belt wheel shaft; 11. a fastening screw; 12. a spring; 401. tensioning the arm plate; 402. a sleeve.
Detailed Description
The present application is further described below with reference to the drawings and examples.
In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "a-direction", "B-direction", etc. are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplification of the description, and are not indicative or implying that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
As shown in fig. 3, the first embodiment of the present utility model comprises a transmission case 1, a pulley shaft 10 rotatably connected with the transmission case 1 through a bearing, and a pulley 2 sleeved on the pulley shaft 10 and fixedly connected with the pulley shaft 10. The tensioning arm 4 is fixedly connected with the transmission case 1, the tensioning arm 4 comprises a tensioning arm plate 401 and a sleeve 402, the tensioning arm plate 401 is fixedly connected with the sleeve 402, preferably, the tensioning arm plate 401 is welded with the sleeve 402, and the tensioning wheel shaft 3 penetrates through the sleeve 402 and can axially move in the sleeve 402. The bearing 6 is sleeved on the tensioning wheel shaft 3, and the inner circular surface of the tensioning wheel 5 is attached to the outer circular surface of the bearing 6. A spring 12 is sleeved on the tensioning wheel shaft 3 and is positioned between the tensioning arm 4 and the tensioning wheel 5, one end of the spring 12 is connected with the tensioning wheel 5, and the other end is connected with the sleeve 402. A fastening nut 7 is disposed at an end of the tensioning wheel shaft 3 away from the tensioning wheel 5, and one end of the fastening nut 7 is attached to the remaining end of the sleeve 402. In use, a certain pre-tightening force is given to the spring 12, so that the spring 12 and the fastening nut 7 can adjust the coplanarity of the tensioning wheel 5 within the pre-tightening force range of the spring 12, i.e. the length of the spring 12 needs to exceed the coplanarity adjustment range. In order to solve the problem that the tightening nut 7 loosens due to vibration influence generated in the running process of the tensioning wheel 5, a thin nut 8 is arranged at one end of the tightening nut 7, the thin nut 8 can prevent the tightening nut 7 from loosening, so that the tensioning wheel shaft 3 is limited to move towards the direction A and the direction B, the direction B is the direction that the tensioning wheel 5 is far away from the sleeve 402, and the direction A is the direction that the tensioning wheel 5 is close to the sleeve 402. Preferably, the fastening nut 7 is a hexagonal nut. The screw teeth of the fastening nut 7 and the screw teeth of the thin nut 8 are all left-handed. To ensure the adjustment accuracy, the fastening nut 7 and the thin nut 8 are preferably thin thread nuts.
When the belt pulley 2 and the engine belt pulley 9 are subjected to coplanarity adjustment, the coplanarity of the tensioning wheel 5 can be adjusted by loosening the fastening nut 7, namely the AB direction in the figure, and the tensioning wheel 5 is adjusted towards the B direction after the coplanarity adjustment of the belt pulley 2 and the engine belt pulley 9 is finished; tightening the fastening nut 7, and adjusting the tensioning wheel 5 towards the direction A; after the coplanarity adjustment is finished, the tightening nut 7 is tightly screwed by the thin nut 8, so that the tightening nut 7 is prevented from being loosened due to vibration generated in the using process of the tensioning wheel 5.
As shown in fig. 4, in the second embodiment of the present utility model, the same parts as those of the first embodiment are not repeated, and the difference is that: the through hole in the sleeve 402 is a threaded hole, the size of the threaded hole is consistent with that of the thread on the tensioning wheel shaft 3, and the sleeve 402 is radially provided with a fastening screw 11 for limiting the rotation of the tensioning wheel shaft 3 under the vibration effect generated in the running process of the tensioning wheel 5 to cause coplanar failure. The fastening screw 11 is preferably an inner hexagonal pyramid end fastening screw.
The utility model has simple structure and convenient operation, can quickly adjust the coplanarity of the belt pulley of the transmission case, the belt pulley of the engine and the tensioning wheel, can operate without opening the granary, reduces the working difficulty and improves the working efficiency.
In addition to the above embodiments, other embodiments may be provided, and all technical solutions formed by equivalent substitution or equivalent transformation are within the scope of protection claimed in the present application.
Claims (8)
1. The utility model provides a take-up pulley adjustment coplanarity structure, includes transmission case (1), belt pulley axle (10) through the bearing with transmission case (1) rotatable coupling, belt pulley (2) cover are established on belt pulley axle (10) and in belt pulley axle (10) fixed connection, its characterized in that: still include with tensioning arm (4) of transmission case (1) fixed connection, tensioning arm (4) contain tensioning arm board (401) and with sleeve (402) of tensioning arm board (401) fixed connection, tensioning shaft (3) pass sleeve (402) and can follow axial displacement in sleeve (402), bearing (6) cover are established tensioning shaft (3) are last, tensioning wheel (5) interior round surface with bearing (6) outer round surface laminating, spring (12) cover are established tensioning shaft (3) are last and be located between tensioning arm (4) and tensioning wheel (5), spring (12) one end is connected with tensioning wheel (5), and the other end is connected with sleeve (402), spring (12) length exceeds coplanar adjustment scope, and fastening nut (7) set up tensioning shaft (3) are kept away from tensioning wheel (5) one end.
2. The tensioning wheel adjustment coplanar structure of claim 1, wherein: the structure also comprises a thin nut (8) sleeved on the tensioning wheel shaft (3) and contacted with the fastening nut (7).
3. The tensioning wheel adjustment coplanar structure of claim 1, wherein: the fastening nut (7) is a hexagon nut.
4. The tensioning wheel adjustment coplanar structure of claim 2, wherein: the screw teeth of the fastening nut (7) and the thin nut (8) are left-handed.
5. The tensioning wheel adjustment coplanar structure of claim 4 wherein: the fastening nut (7) and the thin nut (8) are thin-tooth nuts.
6. The tensioning wheel adjustment coplanar structure of claim 1, wherein: the tensioning arm plate (401) and the sleeve (402) are connected in a welding mode.
7. The tensioning wheel adjustment coplanar structure of claim 1, wherein: the inside through-hole of sleeve (402) is the screw hole, and the screw hole size is unanimous with screw thread on tensioning shaft (3), sleeve (402) radially sets up fastening screw (11).
8. The tensioning wheel adjustment coplanar structure of claim 7 wherein: the fastening screw (11) is an inner hexagonal cone end fastening screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321529247.3U CN220416132U (en) | 2023-06-15 | 2023-06-15 | Coplanarity adjusting structure of tensioning wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321529247.3U CN220416132U (en) | 2023-06-15 | 2023-06-15 | Coplanarity adjusting structure of tensioning wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220416132U true CN220416132U (en) | 2024-01-30 |
Family
ID=89645061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321529247.3U Active CN220416132U (en) | 2023-06-15 | 2023-06-15 | Coplanarity adjusting structure of tensioning wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220416132U (en) |
-
2023
- 2023-06-15 CN CN202321529247.3U patent/CN220416132U/en active Active
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