CN210196371U - Belt pulley straining device - Google Patents
Belt pulley straining device Download PDFInfo
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- CN210196371U CN210196371U CN201920942815.XU CN201920942815U CN210196371U CN 210196371 U CN210196371 U CN 210196371U CN 201920942815 U CN201920942815 U CN 201920942815U CN 210196371 U CN210196371 U CN 210196371U
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- tensioning
- screw rod
- welding piece
- fixed seat
- rod welding
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Abstract
A pulley tensioning mechanism comprising: the device comprises a fastening nut, a fixed limiting plate, a gasket, a compression spring, a contour block, a fixed seat, an adjusting pipe, a tensioning screw rod welding piece and a tensioning wheel combination piece; mounting the fixed seat on a fixed frame; installing a tensioning screw rod welding piece and a tensioning wheel assembly into a whole, screwing a fastening nut at the position of the tensioning screw rod welding piece close to the tensioning wheel assembly, and enabling the installed tensioning screw rod welding piece and a screw rod of the tensioning wheel assembly to penetrate through a hole of a fixed seat; and the adjusting pipe, the contour block, the compression spring, the gasket and the fixed limiting plate are sleeved on the screw rod of the tensioning screw rod welding piece in sequence. The utility model discloses at the belt drive in-process, along with the extension of belt, the regulation tensioning volume that can be automatic guarantees that the belt carries out power transmission under optimum state, and transmission efficiency is high. The shape-forming block can elastically deform along with the swinging of the tension screw welding piece in work, the contact area between the shape-forming block and the fixed seat is guaranteed to be unchanged, and the use is safe and reliable.
Description
Technical Field
The utility model belongs to the technical field of the belt drive, a belt pulley is related to, especially, relate to a belt pulley straining device.
Background
At present, power mechanical products such as harvesters, small tractors and the like still adopt a V-belt to transmit power, and the V-belt can continuously bear alternating bending and unbalanced pulling force in the using process, so that plastic deformation and further elongation occur, the transmission efficiency is reduced, and even the phenomena of groove falling, slipping failure and the like occur, and the operation efficiency is influenced. In the process of power transmission, the V-belt must be tensioned in order to prevent the V-belt from groove stripping, slipping and the like.
In the prior art, a triangle belt tensioning mechanism adopted on power machinery products such as harvesters and small tractors is mostly a regular tensioning mechanism or an automatic tensioning mechanism, and the automatic tensioning mechanism is tensioned by adopting an extension spring. The patent of the national intellectual property office in utility model granted under 2016.07.27: "Belt pulley overspeed device tensioner", patent application number is: 201620155521.9, the filing date of the patent is: year 2016, month 03, day 01, grant announcement day: 2016.07.27, the notice number is: CN205401625, classification No.: F16H7/12(2006.01) I U. The utility model discloses a belt pulley tensioning device, which comprises a support arm, wherein one end of the support arm is rotatably provided with a tensioning wheel, and the other end of the support arm is provided with a pin hole; the pull rod penetrates through the support arm and is sleeved with a spring, one end of the pull rod is hinged with the seat plate, and the other end of the pull rod is sleeved with a threaded fastener in a screwing manner so that the spring is clamped and pressed on the support arm; the tensioning device further comprises a spring seat sleeve and a spring seat ring, wherein the spring seat sleeve and the spring seat ring are sleeved on the pull rod and are respectively located at two ends of the spring. The utility model discloses a can solve the screw thread on the spring wearing and tearing pull rod, cause the problem that the take-up pulley became invalid. The defects that the structure has larger vibration and low working reliability due to no radial limit in the running process along with the V-belt.
In order to overcome the defects, a belt pulley tensioning mechanism which is compact in structure, does not slip in operation and is safe and reliable in use needs to be developed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a compact structure, not skid in the operation, use safe and reliable's belt pulley straining device.
The utility model discloses a following technical scheme reaches above-mentioned purpose: a pulley tensioning mechanism comprising: the device comprises a fastening nut, a fixed limiting plate, a gasket, a compression spring, a contour block, a fixed seat, an adjusting pipe, a tensioning screw rod welding piece and a tensioning wheel combination piece; mounting the fixed seat on a fixed frame; installing the tensioning screw rod welding piece and the tensioning wheel assembly into a whole, screwing a fastening nut at the position of the tensioning screw rod welding piece close to the tensioning wheel assembly, and enabling the installed tensioning screw rod welding piece and the screw rod of the tensioning wheel assembly to penetrate through the hole of the fixed seat; the adjusting pipe, the contour block, the compression spring, the gasket and the fixed limiting plate are sleeved on a screw rod of the tensioning screw rod welding piece in sequence and are fastened by two fastening nuts.
The tension screw seam piece includes: a tension wheel shaft, a connecting plate and a support rod shaft; and the tensioning wheel shaft, the connecting plate and the support rod shaft are fixedly connected into a whole in sequence.
The tension wheel assembly comprises: a tension wheel, a bearing, a spacer bush and a retainer ring; the two bearings are arranged in the inner hole of the tensioning wheel, the spacer bush is arranged between the two bearings, the inner hole of the spacer bush and the inner holes of the two bearings are coaxial, and the check ring is arranged in a check ring groove in the tensioning wheel.
The shape-imitating block is provided with a notch, and the shape of the notch arranged on the shape-imitating block is matched with that of the fixed seat and can be tightly attached together.
The utility model adopts the above technical scheme can reach following beneficial effect after:
1. compression spring device, at belt drive in-process, along with the extension of belt, regulation tensioning volume that can be automatic guarantees that the belt carries out power transmission under optimum, the transmission efficiency is high.
2. The profile modeling piece, can take place elastic deformation along with the swing of tensioning screw rod seam piece at work, guarantee unchangeable with fixing base area of contact, use safe and reliable.
3. Fixed limiting plate, can guarantee that compression spring does not take place bending deformation in the course of the work, work is more reliable.
4. A belt pulley straining device, after compression spring compression stroke releases completely, through the position of adjusting tensioning screw rod seam piece upper nut, still can used repeatedly.
Drawings
Fig. 1 is a schematic structural view of a belt pulley tensioning mechanism of the present invention;
fig. 2 is a schematic cross-sectional structural view of a belt pulley tensioning mechanism according to the present invention;
fig. 3 is a schematic structural view of a tension screw welding piece of the belt pulley tensioning mechanism of the present invention;
fig. 4 is the utility model discloses a pulley straining device's take-up pulley closes piece structural schematic.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples. As shown in fig. 1 to 4, a pulley tensioning mechanism includes: fastening nut 1, fixed limiting plate 2, gasket 3, compression spring 4, profile modeling piece 5, fixing base 6, regulating tube 7, tensioning screw rod seam piece 8, tensioning wheel seam piece 9. Firstly, the fixed seat 6 is installed or fixedly connected on a fixed frame; installing a tensioning screw rod welding piece 8 and a tensioning wheel assembly 9 into a whole, then screwing a fastening nut 1 at the position, close to the tensioning wheel assembly 9, of the tensioning screw rod welding piece 8, and enabling the installed screw rods of the tensioning screw rod welding piece 8 and the tensioning wheel assembly 9 to penetrate through holes of a fixed seat 6; and the adjusting pipe 7, the contour block 5, the compression spring 4, the gasket 3 and the fixed limiting plate 2 are sleeved on the screw of the tensioning screw welding piece 8 in sequence and are finally fastened by two fastening nuts 1.
The tension screw weldment 8 includes: tensioning wheel axle 8.1, connecting plate 8.2, support rod axle 8.3. And fixedly connecting the tensioning wheel shaft 8.1, the connecting plate 8.2 and the support rod shaft 8.3 into a whole in sequence. It mainly acts as a support for the tension wheel assembly 9 and changes position with the change of the stroke position of the compression spring 4.
The tension pulley assembly 9 includes: tension pulley 9.1, bearing 9.2, spacer 9.3, retaining ring 9.4. Two bearings 9.2 are arranged in the inner hole of the tension pulley 9.1, the spacer 9.3 is arranged between the two bearings 9.2, the inner hole of the spacer 9.3 is ensured to be coaxial with the inner holes of the two bearings 9.2, and the retainer ring 9.4 is arranged in a retainer ring groove in the tension pulley 9.1. The tensioning wheel assembly 9 is in direct contact with the triangular transmission belt, and the triangular belt is tensioned during working.
In use, the position of a fastening nut 1 is first determined according to the initial position of the strap, and a sufficient position of the adjustment space is ensured for the fastening nut 1.
The V-belt is continuously stretched and deformed in the using process, and the belt pulley tensioning mechanism can automatically adjust the position of the tensioning wheel assembly 9 under the action of the compression spring 4, so that the tensioning wheel assembly 9 and the transmission belt are always in a complete contact state; the fixed limiting plate 2 can ensure that the compression spring 4 does not bend and deform in the use process; the contour block 5 is tightly attached to the fixed seat 6 and elastically deforms along with the swing of the tensioning screw welding piece 8, so that the contact area between the contour block and the fixed seat is ensured to be unchanged, and the use is safe and reliable; when the belt is too much extended and the tensioning force of the tensioning wheel assembly 9 is not enough, the position of the fastening nut 1 on the tensioning screw rod welding assembly 8 is only required to be adjusted, so that the belt pulley tensioning mechanism can be continuously and normally used.
The utility model provides a but automatic tensioning, installation arrange that the space is little, use safe and reliable's belt pulley straining device can guarantee the transmission efficiency of V-belt power transmission to can prevent effectively that phenomena such as V-belt from appearing taking off the groove, skidding at the in-process of power transmission.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and scope of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A pulley tensioning mechanism comprising: the device comprises a fastening nut (1), a fixed limiting plate (2), a gasket (3), a compression spring (4), a profiling block (5), a fixed seat (6), an adjusting pipe (7), a tensioning screw rod welding piece (8) and a tensioning wheel welding piece (9); the method is characterized in that: the fixed seat (6) is arranged on the fixed frame; installing a tensioning screw rod welding piece (8) and a tensioning wheel assembly (9) into a whole, screwing a fastening nut (1) at the position, close to the tensioning wheel assembly (9), of the tensioning screw rod welding piece (8), and enabling the installed tensioning screw rod welding piece (8) and the installed screw rod of the tensioning wheel assembly (9) to penetrate through a hole of a fixed seat (6); the adjusting pipe (7), the profiling block (5), the compression spring (4), the gasket (3) and the fixed limiting plate (2) are sleeved on a screw of the tensioning screw rod welding piece (8) in sequence and are fastened by two fastening nuts (1).
2. A pulley tensioning mechanism according to claim 1, wherein: the tension screw seam (8) comprises: a tensioning wheel shaft (8.1), a connecting plate (8.2) and a support rod shaft (8.3); the tensioning wheel shaft (8.1), the connecting plate (8.2) and the support rod shaft (8.3) are fixedly connected into a whole in sequence.
3. A pulley tensioning mechanism according to claim 1, wherein: the tension pulley assembly (9) comprises: a tension wheel (9.1), a bearing (9.2), a spacer bush (9.3) and a retainer ring (9.4); two bearings (9.2) are arranged in the inner hole of the tension wheel (9.1), a spacer bush (9.3) is arranged between the two bearings (9.2), the inner hole of the spacer bush (9.3) and the inner holes of the two bearings (9.2) are coaxial, and a retainer ring (9.4) is arranged in a retainer ring groove in the tension wheel (9.1).
4. A pulley tensioning mechanism according to claim 1, wherein: the shape-imitating block (5) is provided with a notch, and the shape of the notch arranged on the shape-imitating block (5) is matched with that of the fixed seat (6) and can be tightly attached together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920942815.XU CN210196371U (en) | 2019-06-21 | 2019-06-21 | Belt pulley straining device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920942815.XU CN210196371U (en) | 2019-06-21 | 2019-06-21 | Belt pulley straining device |
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| Publication Number | Publication Date |
|---|---|
| CN210196371U true CN210196371U (en) | 2020-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920942815.XU Active CN210196371U (en) | 2019-06-21 | 2019-06-21 | Belt pulley straining device |
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| CN (1) | CN210196371U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111412263A (en) * | 2020-04-26 | 2020-07-14 | 江苏沃得农业机械股份有限公司 | Cutting table transmission scheme for outputting power by inputting belt pulley through hydraulic transmission device |
| CN113048201A (en) * | 2021-03-11 | 2021-06-29 | 江苏沃得高新农业装备有限公司 | Chain tensioning mechanism |
-
2019
- 2019-06-21 CN CN201920942815.XU patent/CN210196371U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111412263A (en) * | 2020-04-26 | 2020-07-14 | 江苏沃得农业机械股份有限公司 | Cutting table transmission scheme for outputting power by inputting belt pulley through hydraulic transmission device |
| CN113048201A (en) * | 2021-03-11 | 2021-06-29 | 江苏沃得高新农业装备有限公司 | Chain tensioning mechanism |
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