Belt pulley capable of adjusting limit

Abstract

The utility model discloses a belt pulley capable of adjusting limit, which belongs to the field of belt pulleys, and is characterized in that the belt pulley comprises a pulley body and a shaft sleeve, and further comprises: a limit assembly, which is installed on the pulley body; the heat dissipation assembly is arranged on the wheel body; wherein the limiting assembly comprises a supporting plate, a plurality of telescopic rods, a telescopic assembly and a limiting plate, the supporting plate is installed on the wheel body, the telescopic rods are installed on the supporting plate, the limiting plate is installed on the telescopic rods, and the telescopic assembly is installed on the limiting plate. The limiting plate of the belt pulley can be adjusted according to the width of the transmission belt, and the transmission belt is prevented from being separated from the belt pulley during working.

Description

Technical Field

[0001] The present application belongs to the field of pulleys, and in particular to a pulley capable of adjusting a limit position. Background Art

[0002] The pulley is an important transmission device and belongs to the hub type parts. The pulley is mainly used in situations where power is transmitted over long distances, such as the output of power from small diesel engines, agricultural vehicles, tractors, automobiles, mining machinery, mechanical processing equipment, textile machinery, packaging machinery, lathes, forging machines, some small horsepower motorcycle power transmission, agricultural machinery power transmission, air compressors, reducers, reducers, generators, cotton gins, etc.

[0003] The existing publication number is CN213511973U, which discloses a wear-resistant pulley, including a pulley body, a wear-resistant structure and a protective structure. Belt grooves are evenly opened inside the pulley body; the wear-resistant structure includes a protective plate, and the protective plates are symmetrically sleeved inside the belt grooves.

[0004] Although the above pulley can reduce the maintenance and replacement frequency of the protective plate, thereby improving the stability of the pulley body during use, the limit plate of the pulley cannot be adjusted according to the width of the transmission belt, and the transmission belt is easy to detach from the pulley during operation. Utility Model Content

[0005] The purpose of the present application is to provide a pulley with adjustable limit to address the above-mentioned technical problems, and the limit plate of the pulley can be adjusted according to the width of the transmission belt to prevent the transmission belt from detaching from the pulley during operation.

[0006] The present application provides a pulley capable of adjusting the limit position, comprising a pulley body, a shaft sleeve, and further comprising:

[0007] A limiting assembly, wherein the limiting assembly is mounted on the wheel body;

[0008] A heat dissipation component, wherein the heat dissipation component is arranged on the wheel body;

[0009] Among them, the limiting assembly includes a support plate, a telescopic rod, a telescopic assembly, and a limiting plate. The support plate is installed on the wheel body. There are several telescopic rods, which are installed on the support plate. The limiting plate is installed on the telescopic rod, and the telescopic assembly is installed on the limiting plate.

[0010] When it is necessary to adjust the limit plate of the pulley according to the width of the transmission belt, the support plate is provided with two plates respectively installed at the two ends of the wheel body, and the telescopic component on the support plate is driven to work, and the telescopic component drives the limit plate to move, and the transmission belt on the pulley is adjusted by controlling the distance between the two limit plates. The limit assembly can adjust the limit plate of the pulley according to the width of the transmission belt to prevent the transmission belt from separating from the pulley during operation.

[0011] Furthermore, the telescopic assembly includes:

[0012] A threaded hole, wherein the threaded hole is arranged on the support plate;

[0013] A rotary joint, wherein the rotary joint is mounted on a support plate;

[0014] A threaded rod, the threaded rod being disposed in the threaded hole;

[0015] A drive assembly is mounted on the threaded rod.

[0016] When the telescopic component is needed to drive the limit plate to move, the driving component is driven to rotate the threaded rod, and the thread on the threaded rod cooperates with the threaded hole. When the threaded rod is rotated forward and reversed, the threaded rod is driven to move forward or backward along the threaded hole. When the threaded rod rotates, it will drive one end of the rotary joint to rotate, and at the same time push the limit plate to move forward or backward, and will not drive the support plate to rotate at the same time, thereby achieving the effect of adjusting the position of the two limit plates, making the position adjustment of the limit plates more convenient.

[0017] Furthermore, the driving assembly includes:

[0018] A rotating disk, the rotating disk is mounted on the threaded rod, and a through hole is provided on the rotating disk;

[0019] A crank handle, wherein the crank handle is disposed in a through hole on the rotating disk;

[0020] A grip, the grip being mounted on the crank;

[0021] A locking assembly is mounted on the crank handle.

[0022] When the telescopic assembly is driven to work by a driving assembly, the user holds the handle on the crank to rotate the rotating disk. The cross-sectional diameter of the rotating disk is larger than the cross-sectional diameter of the threaded rod. The crank and the handle are arranged on the edge of the rotating disk, so that the user can hold the handle to rotate the rotating disk more easily and labor-savingly.

[0023] Furthermore, the locking assembly comprises:

[0024] A locking block, wherein the locking block is mounted on the crank handle;

[0025] A compression spring, one end of which is mounted on the locking block, and the other end of which is mounted on the rotating disk;

[0026] A locking groove is arranged on the limiting plate.

[0027] When the user holds the handle to rotate the rotating disk, the crank handle is lifted, and the locking block is disengaged from the locking groove. The compression spring is in a compressed state. When the distance between the two limit plates is adjusted, the two limit plates need to be locked in position. At this time, the grip of the handle is relaxed, and the compression spring generates a compression rebound thrust to push the locking block into the locking groove to complete the locking of the limit plate position. There are several locking grooves, so that the locking block can be locked into more positions, so that there are more options for adjusting the distance of the limit plates.

[0028] Furthermore, the heat dissipation component includes:

[0029] Heat dissipation holes, which are arranged on the wheel body;

[0030] A vent hole is arranged on the side of the wheel body, and the vent hole is connected with the heat dissipation hole.

[0031] The heat dissipation assembly includes heat dissipation holes and ventilation holes, the heat dissipation holes are arranged on the wheel body, the ventilation holes are arranged on the side of the wheel body, the through holes are connected with the heat dissipation holes, and when the wheel body rotates, air can flow through the through holes and the heat dissipation holes, so that the heat dissipation effect of the wheel body is better and the transmission belt on the pulley is less likely to age.

[0032] Furthermore, the heat dissipation component also includes:

[0033] A plurality of convex blocks are provided and the convex blocks are mounted on the wheel body.

[0034] The heat dissipation component also includes a bump, and a plurality of bumps are provided. The bumps are installed on the wheel body. The gaps between the bumps reduce the contact surface between the transmission belt and the pulley, so that the heat dissipation effect of the pulley is better and it is less likely to overheat.

[0035] The beneficial effects of this application are:

[0036] 1. The limiting assembly can adjust the limiting plate of the pulley according to the width of the transmission belt to prevent the transmission belt from detaching from the pulley during operation;

[0037] 2. When the threaded rod rotates, it will drive one end of the rotary joint to rotate, and at the same time push the limit plate to move forward or backward, but will not drive the support plate to rotate at the same time, so as to achieve the position adjustment effect of the two limit plates, making the position adjustment of the limit plates more convenient;

[0038] 3. The crank handle and the grip are arranged at the edge of the rotating disk, so that the user can rotate the rotating disk more easily and labor-savingly by holding the grip. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the overall structure of this application;

[0040] Figure 2 This application Figure 1 A magnified view of part A;

[0041] Figure 3 This application Figure 2 A magnified view of part B;

[0042] The reference numerals in the figure are: 100, wheel body; 200, bushing; 300, limit assembly; 310, support plate; 320, telescopic rod; 330, telescopic assembly; 331, threaded hole; 332, rotary joint; 333, threaded rod; 334, drive assembly; 335, rotating disk; 336, crank; 337, handle; 338, locking assembly; 340, limit plate; 351, locking block; 352, compression spring; 353, locking groove; 400, heat dissipation assembly; 410, heat dissipation hole; 420, vent; 430, bump. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0044] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0045] The embodiments of the present application are described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0046] Embodiment 1:

[0047] like Figure 1 , Figure 2 As shown, the embodiment of the present application provides a pulley capable of adjusting the limit position, including a wheel body 100, a shaft sleeve 200, and further comprising:

[0048] A limiting assembly 300, wherein the limiting assembly 300 is mounted on the wheel body 100;

[0049] A heat dissipation component 400, wherein the heat dissipation component 400 is disposed on the wheel body 100;

[0050] Among them, the limiting assembly 300 includes a support plate 310, a telescopic rod 320, a telescopic assembly 330, and a limiting plate 340. The support plate 310 is installed on the wheel body 100. There are several telescopic rods 320. The telescopic rod 320 is installed on the support plate 310. The limiting plate 340 is installed on the telescopic rod 320. The telescopic assembly 330 is installed on the limiting plate 340.

[0051] When the limit plate 340 of the pulley needs to be adjusted according to the width of the transmission belt, the support plate 310 is provided with two plates respectively installed at the two ends of the wheel body 100, driving the telescopic component 330 on the support plate 310 to work, and the telescopic component 330 drives the limit plate 340 to move, and the transmission belt on the pulley is adjusted by controlling the distance between the two limit plates 340. The limit assembly 300 can adjust the limit plate 340 of the pulley according to the width of the transmission belt to prevent the transmission belt from detaching from the pulley during operation.

[0052] Embodiment 2:

[0053] like Figure 1 , Figure 3 As shown, the embodiment of the present application provides a pulley capable of adjusting the limit position. In addition to the above technical features, the telescopic assembly 330 includes:

[0054] A threaded hole 331, wherein the threaded hole 331 is provided on the support plate 310;

[0055] A rotating joint 332, wherein the rotating joint 332 is installed on the supporting plate 310;

[0056] A threaded rod 333, wherein the threaded rod 333 is disposed in the threaded hole 331;

[0057] A driving assembly 334 is mounted on the threaded rod 333 .

[0058] When the telescopic component 330 is needed to drive the limit plate 340 to move, the driving component 334 is driven to rotate the threaded rod 333, and the threads on the threaded rod 333 cooperate with the threaded hole 331. When the threaded rod 333 is rotated forward or reversed, the threaded rod 333 is driven to move forward or backward along the threaded hole 331. When the threaded rod 333 rotates, it will drive one end of the rotary joint 332 to rotate, and at the same time push the limit plate 340 to move forward or backward, and will not drive the support plate 310 to rotate at the same time, thereby achieving the position adjustment effect of the two limit plates 340, making the position adjustment of the limit plates 340 more convenient.

[0059] Embodiment 3:

[0060] like Figure 1 , Figure 3 As shown, the embodiment of the present application provides a pulley capable of adjusting the limit position. In addition to the above technical features, the drive assembly 334 includes:

[0061] A rotating disk 335, wherein the rotating disk 335 is mounted on the threaded rod 333, and a through hole is provided on the rotating disk 335;

[0062] A crank 336, wherein the crank 336 is disposed in a through hole on the rotating disk 335;

[0063] A handle 337, wherein the handle 337 is mounted on the crank 336;

[0064] The locking assembly 338 is mounted on the crank handle 336 .

[0065] When the telescopic component 330 is driven to work by the driving component 334, the user holds the handle 337 on the crank 336 to rotate the rotating disk 335. The cross-sectional diameter of the rotating disk 335 is larger than the cross-sectional diameter of the threaded rod 333. The crank 336 and the handle 337 are arranged on the edge of the rotating disk 335, so that the user can hold the handle 337 to rotate the rotating disk 335 more easily and labor-savingly.

[0066] Embodiment 4:

[0067] like Figure 3 As shown, the embodiment of the present application provides a pulley capable of adjusting the limit position. In addition to the above technical features, the locking assembly 338 includes:

[0068] A locking block 351, wherein the locking block 351 is mounted on the crank 336;

[0069] A compression spring 352, one end of which is mounted on the locking block 351, and the other end of which is mounted on the rotating disk 335;

[0070] The locking groove 353 is provided on the limiting plate 340 .

[0071] When the user holds the handle 337 to rotate the rotating disk 335, the crank handle 336 is lifted, and the locking block 351 is disengaged from the locking groove 353. The compression spring 352 is in a compressed state. When the distance between the two limit plates 340 is adjusted, the two limit plates 340 need to be locked in position. At this time, the grip of the handle 337 is relaxed, and the compression spring 352 generates a compression rebound thrust to push the locking block 351 into the locking groove 353 to complete the locking of the position of the limit plate 340. There are several locking grooves 353, so that the locking block 351 can be locked into more positions, so that there are more options for adjusting the distance of the limit plates 340.

[0072] Embodiment 5:

[0073] like Figure 1 , Figure 2 As shown, the embodiment of the present application provides a pulley capable of adjusting the limit position. In addition to the above technical features, the heat dissipation assembly 400 includes:

[0074] A heat dissipation hole 410, wherein the heat dissipation hole 410 is provided on the wheel body 100;

[0075] The vent hole 420 is disposed on the side of the wheel body 100 , and the vent hole 420 is connected to the heat dissipation hole 410 .

[0076] The heat dissipation assembly 400 includes a heat dissipation hole 410 and a vent hole 420, wherein the heat dissipation hole 410 is arranged on the wheel body 100, and the vent hole 420 is arranged on the side of the wheel body 100, and the through hole is connected with the heat dissipation hole 410. When the wheel body 100 rotates, air can flow through the through hole and the heat dissipation hole 410, so that the heat dissipation effect of the wheel body 100 is better, and it is less likely to cause the transmission belt on the pulley to age.

[0077] Embodiment 6:

[0078] like Figure 2 As shown, the embodiment of the present application provides a pulley capable of adjusting the limit position. In addition to the above technical features, the heat dissipation assembly 400 also includes:

[0079] The protrusion 430 is provided in plurality and is mounted on the wheel body 100 .

[0080] The heat dissipation component 400 also includes a bump 430, and a plurality of bumps 430 are provided. The bumps 430 are installed on the wheel body 100. The gaps between the bumps 430 reduce the contact surface between the transmission belt and the pulley, so that the heat dissipation effect of the pulley is better and it is less prone to overheating.

[0081] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0082] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A pulley capable of adjusting the limit position, comprising a pulley body (100) and a sleeve (200), characterized in that , also includes: A limiting assembly (300), wherein the limiting assembly (300) is mounted on the wheel body (100); A heat dissipation component (400), wherein the heat dissipation component (400) is arranged on the wheel body (100); The limiting assembly (300) comprises a support plate (310), a telescopic rod (320), a telescopic assembly (330), and a limiting plate (340); the support plate (310) is mounted on the wheel body (100); a plurality of telescopic rods (320) are provided; the telescopic rod (320) is mounted on the support plate (310); the limiting plate (340) is mounted on the telescopic rod (320); and the telescopic assembly (330) is mounted on the limiting plate (340).

2. A pulley with adjustable limit according to claim 1, characterized in that: The telescopic assembly (330) comprises: A threaded hole (331), wherein the threaded hole (331) is arranged on the support plate (310); A rotating joint (332), wherein the rotating joint (332) is installed on the supporting plate (310); A threaded rod (333), wherein the threaded rod (333) is disposed in the threaded hole (331); A drive assembly (334) is mounted on the threaded rod (333).

3. The pulley capable of adjusting the limit position according to claim 2, characterized in that: The drive assembly (334) comprises: A rotating disk (335), wherein the rotating disk (335) is mounted on the threaded rod (333), and a through hole is provided on the rotating disk (335); A crank (336), wherein the crank (336) is disposed in a through hole on the rotating disk (335); A handle (337), wherein the handle (337) is mounted on the crank (336); A locking assembly (338) is mounted on the crank handle (336).

4. The pulley capable of adjusting the limit position according to claim 3, characterized in that: The locking assembly (338) comprises: A locking block (351), wherein the locking block (351) is mounted on the crank handle (336); A compression spring (352), one end of the compression spring (352) is mounted on the locking block (351), and the other end is mounted on the rotating disk (335); A locking groove (353), wherein the locking groove (353) is arranged on the limiting plate (340).

5. The pulley capable of adjusting the limit position according to claim 4, characterized in that: The heat dissipation component (400) comprises: A heat dissipation hole (410), wherein the heat dissipation hole (410) is arranged on the wheel body (100); A vent hole (420), wherein the vent hole (420) is arranged on the side of the wheel body (100), and the vent hole (420) is connected to the heat dissipation hole (410).

6. The pulley capable of adjusting the limit position according to claim 5, characterized in that: The heat dissipation component (400) further includes: A convex block (430), wherein a plurality of convex blocks (430) are provided and the convex blocks (430) are mounted on the wheel body (100).

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