A synchronous belt pulley

Abstract

This utility model discloses a synchronous pulley, comprising: two oppositely arranged pulley bodies, each with a plurality of toothed grooves on its outer peripheral sidewall; at least two through holes penetrating the pulley body; and two adjacent and opposite toothed grooves that cooperate to form a herringbone tooth structure; and two oppositely arranged flange rings, each flange ring having at least one mating post and at least one mating hole, the mating hole penetrating the flange ring; the mating post and mating hole on the flange ring corresponding to the through holes on the pulley bodies; the mating post on the flange ring sequentially passing through two corresponding through holes and the mating hole on the other flange ring; and a fastener threaded to the end of the mating post. This synchronous pulley of the present utility model adopts a split design, enabling rapid assembly of the pulley body and flange rings, facilitating disassembly and replacement of damaged parts, reducing maintenance costs, and improving maintenance efficiency.

Description

Technical Field

[0001] This utility model relates to the field of synchronous belt pulley technology, and in particular to a synchronous belt pulley. Background Technology

[0002] Synchronous belt drives consist of a closed-loop rubber belt with evenly spaced teeth on its inner circumference and corresponding pulleys. During operation, the belt teeth mesh with the pulley teeth to transmit motion and power; it is a meshing transmission and therefore possesses characteristics of gear drives, chain drives, and flat belt drives. As a crucial transmission component, the synchronous belt pulley's teeth can be spur, helical, or herringbone, and it has flanges on both sides. However, traditional synchronous belt pulleys often employ a one-piece design. If unilateral tooth wear or other malfunctions occur, the entire pulley often needs to be replaced, increasing maintenance costs and inconvenience. Utility Model Content

[0003] The purpose of this utility model is to design a synchronous pulley to overcome the shortcomings of the above-mentioned technology. The synchronous pulley adopts a split design, which realizes the quick assembly of the pulley body and the retaining ring, so as to disassemble and replace the damaged parts, reduce maintenance costs and improve maintenance efficiency.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a synchronous belt pulley, comprising:

[0005] Two pulley bodies are arranged opposite each other. The outer peripheral sidewalls of the pulley bodies are provided with a number of tooth grooves evenly distributed in a ring array. The pulley bodies have at least two through holes. The two pulley bodies abut and cooperate so that the through holes of the two pulley bodies correspond to each other. The two adjacent and opposite tooth grooves cooperate with each other to form a herringbone tooth structure.

[0006] Two opposing flange rings are provided, each flange ring having at least one mating post and at least one mating hole. The mating hole penetrates the flange ring. The mating post and the mating hole on the flange ring correspond to the respective through holes on the pulley body. The mating post on the flange ring passes sequentially through two corresponding through holes and the mating hole on the other flange ring. The end of the mating post is threaded with a fastener to form a clamping space between the two flange rings to clamp the two pulley bodies.

[0007] Preferably, the pulley body has a plurality of through holes, and the through holes on the pulley body are evenly distributed in a ring array; the retaining ring has a plurality of mating posts and a plurality of mating holes, and the mating posts and mating holes on the retaining ring are staggered and evenly distributed in a ring array.

[0008] Preferably, the outer wall of the pulley body is provided with a mating groove, the through hole extends to the inner wall of the mating groove, the retaining ring is coaxially provided with a mating ring, the mating post and the mating hole are both provided on the retaining ring, and the mating ring is inserted into the corresponding mating groove.

[0009] Preferably, the pulley body has a through-hole at its center, and the inner wall of the through-hole has a groove.

[0010] Preferably, the inner diameter of the mating ring is larger than the inner diameter of the connecting hole.

[0011] Preferably, the pulley body has symmetrically arranged protrusions and grooves on the side wall away from the docking groove, and the protrusions on the pulley body are inserted into and engaged with the grooves on the other pulley body.

[0012] Preferably, the protrusion is coaxially provided with a connecting post, the outer diameter of the connecting post is smaller than the outer diameter of the protrusion, and the pulley body is provided with a connecting groove for threaded connection of the connecting post.

[0013] Preferably, a magnetic block is fixedly connected to the inner wall of the groove, the protrusion is made of magnetic material, the end face of the protrusion abuts against the magnetic block, and the magnetic force between the protrusion and the magnetic block is an attractive force.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model provides a synchronous pulley in which two pulley bodies are aligned and abutted, and their through holes correspond to each other. A mating post passes through the corresponding two through holes and the mating hole on another mating ring. The end of the mating post is threaded with a fastener, so that a clamping space is formed between the two retaining rings to hold the two pulley bodies. The two retaining rings and the two pulley bodies are mutually positioned and fastened, ensuring the assembly reliability of the synchronous pulley. The synchronous pulley adopts a split design, which realizes the quick assembly of the pulley body and the retaining rings, so as to disassemble and replace the damaged parts, reduce maintenance costs, and improve maintenance efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the synchronous belt pulley in the embodiment;

[0017] Figure 2 This is a cross-sectional view of the timing pulley in the embodiment;

[0018] Figure 3 This is a schematic diagram of the pulley body in the embodiment;

[0019] Figure 4This is a schematic diagram of the side guard ring in the embodiment.

[0020] In the diagram: 1. Pulley body; 101. Tooth groove; 102. Through hole; 103. Dating groove; 104. Connecting hole; 105. Slot; 106. Protrusion; 107. Groove; 108. Connecting post; 109. Connecting groove; 110. Magnetic block; 2. Side ring; 201. Dating post; 202. Dating hole; 203. Dating ring; 3. Fastener; 4. Clamping space. Detailed Implementation

[0021] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0022] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 A synchronous pulley includes two pulley bodies 1 arranged opposite each other and two side rings 2 arranged opposite each other. The outer peripheral sidewall of the pulley body 1 is provided with a plurality of tooth grooves 101 evenly distributed in a ring array. The outer sidewall of the pulley body 1 is provided with a mating groove 103. The inner wall of the mating groove 103 is provided with six through holes 102 evenly distributed in a ring array. The sidewall of the pulley body 1 away from the mating groove 103 is symmetrically provided with protrusions 106 and grooves 107. The protrusions 106 on the pulley body 1 are inserted into the grooves 107 on the other pulley body 1 to align and splice the two pulley bodies 1 together. The two pulley bodies 1 abut against each other so that the through holes 102 of the two pulley bodies 1 correspond to each other. The two adjacent and opposite tooth grooves 101 cooperate with each other to form a herringbone tooth structure.

[0023] A connecting hole 104 is provided in the center of the pulley body 1. A slot 105 is provided on the inner wall of the connecting hole 104. When the two pulley bodies 1 are aligned and spliced ​​together, the connecting holes 104 of the two pulley bodies 1 correspond to each other, which facilitates engagement and fixation with the external shaft. At the same time, it facilitates the disassembly and assembly of the synchronous pulley with the external shaft.

[0024] A mating ring 203 is coaxially mounted on the retaining ring 2. The inner diameter of the mating ring 203 is larger than the inner diameter of the connecting hole 104 to avoid obstructing the connecting hole 104. The mating ring 203 has three mating posts 201 and three mating holes 202, with the mating holes 202 penetrating the mating ring 203. The mating posts 201 and the mating holes 202 on the mating ring 203 are staggered and evenly distributed in a ring array. The mating posts 201 and the mating holes 202 on the mating ring 203 correspond to the through holes 102 on the pulley body 1, respectively.

[0025] When assembling the synchronous pulley, the two pulley bodies 1 are aligned and assembled together by using the insertion and engagement of the protrusion 106 and the groove 107. After the two pulley bodies 1 are aligned and abutted, the through holes 102 on them correspond to each other, and the mating ring 203 is inserted and engaged with the corresponding mating groove 103 to align and assemble the retaining ring 2 with the pulley body. The mating post 201 on the mating ring 203 passes through the two corresponding through holes 102 and the mating hole 202 on the other mating ring 203. The end of the mating post 201 is threaded with a fastener 3, which is a nut structure, so that a clamping space 4 is formed between the two retaining rings 2 to hold the two pulley bodies 1. The two retaining rings 2 and the two pulley bodies 1 are mutually positioned and fastened, ensuring the assembly reliability of the synchronous pulley. The synchronous pulley adopts a split design, which realizes the quick assembly of the pulley body 1 and the retaining ring 2, so as to disassemble and replace the damaged parts, reduce maintenance costs, and improve maintenance efficiency.

[0026] Preferably, a connecting post 108 is coaxially arranged on the protrusion 106. The outer diameter of the connecting post 108 is smaller than the outer diameter of the protrusion 106. A connecting groove 109 is provided on the pulley body 1 for threaded connection of the connecting post 108, so as to facilitate the assembly and disassembly of the protrusion 106 and the pulley body 1. A magnetic block 110 is fixedly connected to the inner wall of the groove 107. The protrusion 106 is made of magnetic material, and the end face of the protrusion 106 abuts against the magnetic block 110. The magnetic force between the protrusion 106 and the magnetic block 110 is an attractive force. When the two pulley bodies 1 are aligned and assembled together, the magnetic force between the protrusion 106 and the magnetic block 110 is used to maintain the two pulley bodies 1 in contact with each other, so as to achieve quick alignment and pre-fixation between the two pulley bodies 1 and avoid the two pulley bodies 1 from separating due to misoperation when disassembling the synchronous pulley.

[0027] Of course, the above are just typical examples of this utility model. In addition, this utility model may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.

Claims

1. A synchronous belt pulley characterized by, include: Two opposing pulley bodies (1) are provided with a plurality of tooth grooves (101) evenly distributed in a ring array on the outer peripheral sidewall of the pulley body (1). The pulley body (1) has at least two through holes (102). The two pulley bodies (1) abut against each other so that the through holes (102) of the two pulley bodies (1) correspond to each other. The two adjacent and opposing tooth grooves (101) cooperate with each other to form a herringbone tooth structure. Two opposing flange rings (2) are provided with at least one mating post (201) and at least one mating hole (202). The mating hole (202) passes through the flange ring (2). The mating post (201) and the mating hole (202) on the flange ring (2) correspond to each of the through holes (102) on the pulley body (1). The mating post (201) on the flange ring (2) passes through the two corresponding through holes (102) and the mating hole (202) on the other flange ring (2) in sequence. The end of the mating post (201) is threaded with a fastener (3) so that a clamping space (4) for clamping the two pulley bodies (1) is formed between the two flange rings (2).

2. A synchronous belt pulley according to claim 1, wherein The pulley body (1) has a number of through holes (102), and the through holes (102) on the pulley body (1) are evenly distributed in a ring array; the side ring (2) is provided with a number of docking posts (201) and a number of docking holes (202), and the docking posts (201) and docking holes (202) on the side ring (2) are staggered and evenly distributed in a ring array.

3. A synchronous belt pulley according to claim 1, wherein The outer wall of the pulley body (1) is provided with a docking groove (103), the through hole (102) extends to the inner wall of the docking groove (103), the retaining ring (2) is coaxially provided with a docking ring (203), the docking post (201) and the docking hole (202) are both provided on the retaining ring (2), and the docking ring (203) is inserted into the corresponding docking groove (103).

4. A synchronous belt pulley according to claim 3, wherein The pulley body (1) has a through-hole (104) at its center, and the inner wall of the through-hole (104) has a groove (105).

5. A synchronous pulley as claimed in claim 4, wherein The inner diameter of the docking ring (203) is larger than the inner diameter of the connecting hole (104).

6. A synchronous pulley according to claim 3, characterized in that, The pulley body (1) has symmetrically arranged protrusions (106) and grooves (107) on the side wall away from the docking groove (103). The protrusions (106) on the pulley body (1) are inserted into the grooves (107) on the other pulley body (1).

7. A synchronous pulley according to claim 6, characterized in that, The protruding post (106) is coaxially provided with a connecting post (108), the outer diameter of the connecting post (108) is smaller than the outer diameter of the protruding post (106), and the pulley body (1) is provided with a connecting groove (109) for threaded connection of the connecting post (108).

8. A synchronous pulley according to claim 6, characterized in that, A magnetic block (110) is fixedly connected to the inner wall of the groove (107). The protrusion (106) is made of magnetic material. The end face of the protrusion (106) abuts against the magnetic block (110), and the magnetic force between the protrusion (106) and the magnetic block (110) is an attraction force.

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