Fast-assembly belt pulley

Abstract

The utility model provides a fast-assembly type belt pulley, which belongs to the technical field of belt pulleys and comprises a belt pulley body, a connecting ring and a bushing, the connecting ring is integrally formed in the center of the inner side of the belt pulley body, a plurality of rectangular grooves are formed in the inner side surface of the connecting ring, a clamping groove is formed in one side of the center of each rectangular groove, and the bushing is clamped at a middle smoke through hole of the connecting ring; through the arrangement of the rectangular groove, the clamping groove, the rectangular strip and the clamping block, when the lining is installed on the connecting ring, the rectangular sleeve on the lining is aligned with the rectangular groove in the connecting ring to be inserted, when the clamping block makes contact with the connecting ring, the clamping block is pressed into the containing groove, the sleeving spring is in a compressed state, and the clamping block is pressed into the containing groove; and then the lining is completely embedded into the connecting ring, at the moment, the clamping blocks are aligned with the clamping grooves, the clamping blocks are popped out of the containing grooves through the elastic force of the sleeving springs, the effect of positioning the rectangular strip is achieved, installation is convenient, operation is easy, the positioning temperature is high, and the lining can be prevented from falling off from the connecting ring.

Description

Technical Field

[0001] The utility model relates to the technical field of pulleys, in particular to a quick-install pulley. Background Art

[0002] Pulleys are hub parts, generally cast or forged. They are mainly used for long-distance power transmission, such as the output of small diesel engine power, 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, speed reducers, generators, cotton gins, etc.

[0003] In the prior art, when a pulley is installed, a bushing is usually required for installation. The bushing is a key component when installing a pulley and is usually installed in the shaft hole of the pulley to reduce wear, improve sealing performance, and help fix the pulley. The bushing is then installed on the drive shaft. In the prior art, when the bushing is installed on the pulley, it is usually connected by threaded connection or interference fit. When the drive shaft drives the bushing to rotate and drives the pulley to rotate, the pulley is prone to relative sliding with the bushing. Long-term use will cause loosening between the bushing and the pulley, and in serious cases, safety accidents are likely to occur. Therefore, a quick-install pulley is designed to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to solve the problems existing in the above-mentioned background technology and to propose a quick-install pulley.

[0005] The technical problem to be solved by the utility model is to provide a quick-install pulley, which solves the problem in the prior art that the pulley bushing is easily loosened when installed on the pulley by means of threaded connection or interference fit.

[0006] The utility model provides a quick-install pulley, comprising a pulley body, a connecting ring, and a bushing. The connecting ring is integrally formed at the center of the inner side of the pulley body. The inner side surfaces of the connecting ring are each provided with a plurality of rectangular grooves. A clamping groove is provided on one side of the center of the rectangular groove. The bushing is clamped at the middle cigarette through hole of the connecting ring.

[0007] A plurality of rectangular strips are fixedly provided on the outer surface of the bushing, a receiving groove is provided in the center of the rectangular strip, a guide rod is fixedly provided in the receiving groove, a clamping block is provided through the guide rod, a through hole matching the guide rod is provided through the clamping block, and a sleeve spring is fixedly provided between the clamping block and the inner side of the receiving groove.

[0008] Preferably, the rectangular bars match the rectangular grooves, and there are four rectangular grooves and four rectangular bars, and the arcs corresponding to two adjacent rectangular grooves and two adjacent rectangular bars are both 90°.

[0009] Preferably, the clamping block matches the clamping slot, and when the sleeve spring is in a naturally extended state, the length of the clamping block extending out of the receiving slot is equal to the depth of the clamping slot.

[0010] Preferably, the guide rod is completely located in the receiving groove, and when the sleeve spring is in a maximum compression state, the clamping block is completely located in the receiving groove.

[0011] Preferably, a groove is provided on the side surface of the rectangular strip, and an inclined groove is provided in the center of the surface of the side of the card block away from the receiving groove.

[0012] Preferably, the bevel groove is deep at one end facing the groove and shallow at one end away from the groove, and the end of the bevel groove away from the groove is in the same vertical plane as the outer surface of the block.

[0013] Preferably, when the sleeve spring is in a naturally extended state, the outer end of the inclined groove and the inner side of the groove are in the same vertical plane.

[0014] Preferably, the outer end of the guide rod and the inner side of the groove are in the same vertical plane.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects:

[0016] 1. The utility model is provided with a rectangular groove, a card slot, a rectangular strip and a card block. When the bushing is installed on the connecting ring, the rectangular sleeve on the bushing is aligned with the rectangular groove on the connecting ring and inserted. When the card block contacts the connecting ring, the card block is pressed into the receiving groove, the sleeve spring is in a compressed state, and then the bushing is completely embedded in the connecting ring. At this time, the card block is aligned with the card slot, and the elastic force of the sleeve spring pops the card block out from the receiving groove, thereby achieving the effect of positioning the position of the rectangular strip. The utility model is convenient to install, simple to operate, and can position the temperature to prevent the bushing from falling off the connecting ring.

[0017] 2. The utility model is provided with a groove and a bevel groove. When the bushing needs to be removed from the connecting ring, a rectangular strip matching the groove is inserted into the groove. When the rectangular strip contacts the bevel groove, the card block is squeezed into the receiving groove until the card block is completely embedded in the receiving groove. At this time, the card block will not position the rectangular strip, making it convenient to remove the bushing from the connecting ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0019] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model.

[0020] Figure 2 This is a schematic diagram of the overall structure of the utility model.

[0021] Figure 3 For this utility model Figure 2 A. Schematic diagram of the enlarged structure.

[0022] Figure 4 This is a schematic diagram of the split structure of the rectangular strip and the card block of the utility model.

[0023] [reference numerals]

[0024] 1. Pulley body; 2. Connecting ring; 201. Rectangular groove; 202. Clamping groove; 3. Bushing; 301. Rectangular bar; 302. Receiving groove; 303. Guide rod; 304. Clamping block; 305. Through hole; 306. Socket spring; 307. Groove; 308. Bevel groove. DETAILED DESCRIPTION

[0025] Example:

[0026] like Figures 1-4 As shown, the embodiment of the present utility model provides a quick-install pulley, including a pulley body 1, a connecting ring 2, and a bushing 3. The connecting ring 2 is integrally formed in the center of the inner side of the pulley body 1. The inner side of the connecting ring 2 is provided with a plurality of rectangular grooves 201, and a clamping groove 202 is provided on the central side. The bushing 3 is clamped at the middle cigarette through hole of the connecting ring 2.

[0027] A plurality of rectangular bars 301 are fixedly provided on the outer surface of the bushing 3, a receiving groove 302 is provided in the center of the rectangular bar 301, a guide rod 303 is fixedly provided in the receiving groove 302, a clamping block 304 is penetrated on the guide rod 303, a through hole 305 matching the guide rod 303 is penetrated on the clamping block 304, and a sleeve spring 306 is fixedly provided between the clamping block 304 and the inner side of the receiving groove 302.

[0028] In this embodiment, the rectangular strips 301 match the rectangular grooves 201 , and there are four rectangular grooves 201 and four rectangular strips 301 . The arcs corresponding to two adjacent rectangular grooves 201 and two adjacent rectangular strips 301 are both 90°.

[0029] In this embodiment, the locking block 304 matches the locking slot 202 , and when the sleeve spring 306 is in a naturally extended state, the length of the locking block 304 extending from the receiving slot 302 is equal to the depth of the locking slot 202 .

[0030] In this embodiment, when the guide rod 303 is completely in the receiving groove 302 and the sleeve spring 306 is in the maximum compression state, the clamping block 304 is completely in the receiving groove 302. At this time, the clamping block will not affect the rectangular bar 301 from being embedded in the rectangular groove 201.

[0031] By providing a rectangular groove 201, a card slot 202, a rectangular strip 301 and a card block 304, when the bushing 3 is installed on the connecting ring 2, the rectangular strip 301 on the bushing 3 is aligned with the rectangular groove 201 on the connecting ring 2 and inserted. When the card block 304 contacts the connecting ring, the card block 304 is pressed into the receiving groove 302, the sleeve spring 306 is in a compressed state, and then the bushing 3 is completely embedded in the connecting ring 2. At this time, the card block 304 is aligned with the card slot 202, and the elastic force of the sleeve spring 306 pops the card block 304 out of the receiving groove 302, thereby achieving the effect of positioning the position of the rectangular strip 301. The installation is convenient, the operation is simple, and the positioning temperature can be prevented, which can prevent the bushing 3 from falling off the connecting ring 2.

[0032] In this embodiment, a groove 307 is formed on the side surface of the rectangular strip 301 , and an inclined groove 308 is formed in the center of the surface of the side of the clamping block 304 away from the receiving groove 302 .

[0033] In this embodiment, the inclined groove 308 is deep at one end facing the groove 307 and shallow at the other end away from the groove 307 , and the end away from the groove 307 and the outer surface of the block 304 are in the same vertical plane.

[0034] In this embodiment, when the sleeve spring 306 is in a naturally extended state, the outer end of the inclined groove 308 and the inner side of the groove 307 are located on the same vertical plane.

[0035] In this embodiment, the outer end of the guide rod 303 and the inner side of the groove 307 are located on the same vertical plane.

[0036] By providing the groove 307 and the bevel groove 308, when the bushing 3 needs to be removed from the connecting ring 2, a rectangular bar matching the groove 307 is inserted into the groove 307. When the rectangular bar contacts the bevel groove 308, the block 304 is squeezed into the receiving groove 302 until the block 304 is completely embedded in the receiving groove 302. At this time, the block 304 will not position the rectangular bar 301, making it convenient to remove the bushing 3 from the connecting ring 2.

[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention. These should also be regarded as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. A quick-release pulley, characterized in that: The invention comprises a pulley body (1), a connecting ring (2), and a bushing (3); the connecting ring (2) is integrally formed in the center of the inner side of the pulley body (1); a plurality of rectangular grooves (201) are provided on the inner side surface of the connecting ring (2); a clamping groove (202) is provided on one side of the center of the rectangular groove (201); and a bushing (3) is clamped at the middle cigarette through hole of the connecting ring (2); A plurality of rectangular strips (301) are fixedly provided on the outer surface of the bushing (3), a receiving groove (302) is provided in the center of the rectangular strip (301), a guide rod (303) is fixedly provided in the receiving groove (302), a clamping block (304) is provided through the guide rod (303), a through hole (305) matching the guide rod (303) is provided through the clamping block (304), and a sleeve spring (306) is fixedly provided between the clamping block (304) and the inner side of the receiving groove (302).

2. The quick-release pulley according to claim 1, characterized in that: The rectangular strips (301) match the rectangular grooves (201), and four rectangular grooves (201) and four rectangular strips (301) are provided. The arcs corresponding to two adjacent rectangular grooves (201) and two adjacent rectangular strips (301) are both 90°.

3. The quick-release pulley according to claim 2, characterized in that: The clamping block (304) matches the clamping slot (202), and when the sleeve spring (306) is in a naturally extended state, the length of the clamping block (304) extending out of the receiving slot (302) is equal to the depth of the clamping slot (202).

4. The quick-release pulley according to claim 3, characterized in that: The guide rod (303) is completely located in the receiving groove (302), and when the sleeve spring (306) is in the maximum compression state, the clamping block (304) is completely located in the receiving groove (302).

5. The quick-release pulley according to claim 4, characterized in that: A groove (307) is provided on the side of the rectangular strip (301), and a bevel groove (308) is provided in the center of the surface of the side of the clamping block (304) away from the receiving groove (302).

6. The quick-install pulley according to claim 5, characterized in that: The inclined groove (308) is deep at one end facing the groove (307) and shallow at one end away from the groove (307), and the end of the inclined groove (308) away from the groove (307) is in the same vertical plane as the outer surface of the block (304).

7. The quick-install pulley according to claim 6, characterized in that: When the sleeve spring (306) is in a naturally extended state, the outer end of the inclined groove (308) and the inner side of the groove (307) are located on the same vertical plane.

8. The quick-install pulley according to claim 7, characterized in that: The outer end of the guide rod (303) and the inner side of the groove (307) are located on the same vertical plane.

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