A pulley
By setting a multi-weed groove structure, anti-detachment unit and reinforcement unit on the pulley main body, the problems of poor stability of the pulley structure and short service life of the stud are solved, and the effect of reducing belt disengagement and improving connection strength is achieved.
Patent Information
- Application Number
- CN202420657528.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-01
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-04-01
AI Technical Summary
The existing pulleys have a high speed during operation, resulting in poor structural stability of the assembly section and easy belt disengagement. At the same time, the high-strength movement method can easily reduce the service life of the stud.
A pulley body is designed, with several protrusions arranged on the outer wall between the left edge and the right edge forming a multi-weed groove structure, and an anti-detachment unit and a reinforcement unit are provided on the pulley body to reduce belt disengagement and improve the strength of the bolt hole connection.
Through the multi-weed groove structure and anti-detachment unit design, the possibility of belt disengagement is reduced, while the reinforcement unit increases the connection strength of the bolt holes and extends the service life.
Smart Images
Figure CN222732071U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of pulleys and relates to a pulley. Background Art
[0002] Pulleys are hub-type parts, which are generally relatively large in size. The manufacturing process is generally based on casting and forging. Pulleys are mainly used in situations where power is transmitted over long distances, such as the output of small diesel engines, agricultural vehicles, tractors, automobiles, mining machinery, mechanical processing equipment, textile machinery, packaging machinery, lathes, forging machines, and some low-horsepower motorcycle power transmission. Therefore, the speed of the pulley is relatively high during operation. Since the wall of the existing pulley where the belt assembly section is located is relatively smooth, the structural stability of the assembly section is poor and it is easy to fall off. At the same time, the pulley is generally connected to other equipment through spokes, and its assembly is generally connected through studs. The high-intensity movement method can easily reduce the service life of the studs. Summary of the invention
[0003] The utility model aims to provide a pulley which is not easy to disengage and has a longer service life in view of the above problems existing in the prior art.
[0004] The purpose of the utility model can be achieved through the following technical solutions: a pulley, comprising a pulley body having a left edge and a right edge, the pulley body being hollow, and having a plurality of bolt holes arranged along its circumferential direction, characterized in that a plurality of protrusions are arranged on the outer wall of the pulley body between the left edge and the right edge to form a multi-wedge groove structure, the pulley body is provided with anti-slip units at the left edge and the right edge, and a reinforcing unit connected to the pulley body and used to improve the connection strength at the bolt hole is arranged on one end face of the pulley body.
[0005] In the above-mentioned pulley, the anti-slip unit is composed of an anti-slip ring and a plurality of resistance plates. The anti-slip ring is arranged on the corresponding left edge and right edge and connected thereto. The plurality of resistance plates are arranged on the anti-slip ring and connected thereto through hinges. The outer end of the resistance plate is provided with a resistance ball connected thereto.
[0006] In the above-mentioned pulley, a plurality of through holes are provided on the end faces of the left edge and the right edge corresponding to the contact plate, and the left edge and the right edge are provided with contact rods connected thereto and in contact with the contact plate at the through holes.
[0007] In the above-mentioned pulley, the friction ball is connected to the friction plate through a screw rod, and the friction plate is provided with a threaded hole for the screw rod to extend into and be installed.
[0008] In the above-mentioned pulley, the reinforcement unit is a reinforcement ring connected to the pulley body.
[0009] Compared with the prior art, this pulley has the following advantages:
[0010] 1. A plurality of protrusions are arranged on the outer wall between the left edge and the right edge of the pulley body to form a multi-wedge groove structure. Anti-slip units are arranged at the left edge and the right edge of the pulley body. A reinforcing unit connected to the pulley body and used to improve the connection strength at the bolt hole is arranged on one end face of the pulley body. The arrangement of the above structure has the advantage of reducing the belt from being detached from the pulley body and strengthening the connection strength at the bolt hole. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic diagram of the cross-sectional structure of this pulley.
[0012] In the figure, 1, left edge; 2, right edge; 3, pulley body; 4, bolt hole; 5, anti-slip ring; 6, resistance plate; 7, hinge; 8, resistance ball; 9, resistance rod; 10, screw rod; 11, reinforcement ring. DETAILED DESCRIPTION
[0013] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
[0014] like Figure 1As shown, the present pulley comprises a pulley body 3 having a left edge 1 and a right edge 2, the pulley body 3 is hollow to form an assembly hole, and the pulley body 3 is provided with a plurality of bolt holes 4 arranged along its circumferential direction, a plurality of protrusions are arranged on the outer wall of the pulley body 3 between the left edge 1 and the right edge 2 to form a multi-wedge groove structure, the pulley body 3 is provided with anti-slip units at the left edge 1 and the right edge 2, a reinforcing unit connected to the pulley body 3 and used to improve the connection strength at the bolt hole 4 is arranged on one end surface of the pulley body 3, the anti-slip units are composed of an anti-slip ring 5 and a plurality of resistance plates 6, the anti-slip ring 5 is arranged on the corresponding left edge 1 and the right edge 2 and connected thereto, a plurality of the resistance plates 6 are arranged on the anti-slip ring 5 and connected thereto through hinges 7, and a plurality of resistance plates 6 located on the anti-slip ring 5 are arranged along its circumferential direction The contact plate 6 is arranged at intervals, and a contact ball 8 connected to it is provided at the outer end of the contact plate 6. An annular notch groove for installing the anti-slip ring 5 is provided on the left edge 1 and the right edge 2. A plurality of through holes are provided on the end faces of the left edge 1 and the right edge 2 corresponding to the contact plate 6. A contact rod 9 connected to it and in contact with the contact plate 6 is provided at the through hole on the left edge 1 and the right edge 2. When the angle of the contact plate 6 is adjusted, it can also be limited by the contact rod 9. A magnetic block for adsorbing the contact rod 9 is provided at the contact end of the contact rod 9 and the contact plate 6. The contact ball 8 is connected to the contact plate 6 through a screw 10. A threaded hole for the screw 10 to be inserted and installed is provided on the contact plate 6. The position of the contact ball 8 can be adjusted by the screw 10. The reinforcing unit is a reinforcing ring 11 connected to the pulley body 3. The inner diameter of the reinforcing ring 11 is larger than the inner diameter of the bolt hole 4.
[0015] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.
[0016] Although the terms such as left edge 1, right edge 2, pulley body 3, bolt hole 4, anti-drop ring 5, contact plate 6, hinge 7, contact ball 8, contact rod 9, screw rod 10, and reinforcement ring 11 are used more frequently in this article, the possibility of using other terms is not excluded. The use of these terms is only for more convenient description and explanation of the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.
Claims
1. A pulley, comprising a pulley body (3) having a left edge (1) and a right edge (2), the pulley body (3) being hollow, and having a plurality of bolt holes (4) arranged along the circumference thereof, characterized in that: The pulley body (3) is provided with a plurality of protrusions on its outer wall between the left edge (1) and the right edge (2) to form a multi-wedge groove structure, the pulley body (3) is provided with anti-slip units at both the left edge (1) and the right edge (2), and a reinforcing unit connected to the pulley body (3) and used to increase the connection strength at the bolt hole (4) is provided on one end surface.
2. A pulley according to claim 1, characterized in that: The anti-slip units are composed of an anti-slip ring (5) and a plurality of resistance plates (6). The anti-slip ring (5) is arranged on the corresponding left edge (1) and right edge (2) and connected thereto. The plurality of resistance plates (6) are arranged on the anti-slip ring (5) and connected thereto via hinges (7). The outer ends of the resistance plates (6) are provided with resistance balls (8) connected thereto.
3. A pulley according to claim 1, characterized in that: A plurality of through holes are provided on the end surfaces of the left edge (1) and the right edge (2) at the locations corresponding to the abutment plate (6), and abutment rods (9) connected to the left edge (1) and the right edge (2) and abutting against the abutment plate (6) are provided at the locations of the through holes.
4. A pulley according to claim 2, characterized in that: The resistance ball (8) is connected to the resistance plate (6) via a screw rod (10), and the resistance plate (6) is provided with a threaded hole for the screw rod (10) to extend into for installation.
5. A pulley according to claim 1, characterized in that: The reinforcement unit is a reinforcement ring (11) connected to the pulley body (3).