Synchronous pulley set

Abstract

The utility model belongs to the technical field of transmission machining, and particularly relates to a synchronous belt wheel set which is characterized in that wheel teeth are arranged on the surface of a synchronous wheel, a tooth groove is formed between every two adjacent wheel teeth, tooth-shaped parts are distributed on the inner surface of a synchronous belt at equal intervals in the circumferential direction, and the tooth-shaped parts are meshed with the tooth grooves, so that transmission of the synchronous wheel on the synchronous belt is achieved. The clamping ring is connected to the middle of the outer surface of the synchronous wheel in a sleeving mode, the guide groove is formed in the inner wall of the synchronous belt, and through cooperation of the guide groove and the clamping ring, the synchronous belt can be prevented from moving relatively in the axial direction of the synchronous wheel during transmission, so that stable operation is kept; the other end of the fixed wheel is fixedly connected with a second check ring, the diameter of the first check ring and the diameter of the second check ring are both larger than that of the synchronous wheel, the synchronous belt is limited through the first check ring and the second check ring, the synchronous belt can be prevented from sliding off under the working condition of large traction force, and the operation stability is further improved.

Description

Technical Field

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

[0002] Currently, synchronous belt pulleys are commonly used transmission devices in industry, widely applied in automobiles, light industry, textiles, food packaging, printing machinery, tobacco machinery, office automation equipment, home appliances, medical and health equipment, CNC machine tools, and other fields. Synchronous belt drives involve pulleys and synchronous belts, and are a type of interlocking transmission. In existing synchronous belt pulley sets, during transmission, the synchronous belt tends to move relative to the pulleys along the axial direction, leading to unstable operation. Utility Model Content

[0003] The purpose of this invention is to address the aforementioned technical problems by providing a synchronous belt pulley assembly that achieves stable operation.

[0004] In view of this, the present invention provides a timing belt pulley set, including a timing pulley, the surface of which is provided with teeth, and a tooth groove is formed between adjacent teeth;

[0005] Synchronous belts are composite layer structures. The inner surface of the synchronous belt has toothed sections evenly distributed along the circumference. The toothed sections mesh with the toothed grooves. Guide grooves are provided on the inner wall of the synchronous belt.

[0006] A retaining ring is fitted onto the middle of the outer surface of the timing pulley, and the width of the retaining ring and the width of the guide groove are consistent at the mating position.

[0007] A fixed pulley is provided with a timing belt fitted on its outer surface. One end of the fixed pulley has an integrally formed first retaining ring that fits against one end of the timing pulley. The other end of the fixed pulley is fixedly connected to a second retaining ring that fits against the other end of the timing pulley.

[0008] The side wall of the synchronous pulley has a fixing hole for connecting the synchronous pulley and the fixed pulley.

[0009] In the above technical solution, the synchronous belt further includes a synchronous belt body, the upper surface of the synchronous belt body is symmetrically provided with rounded corners on both sides, and a thickened layer is provided inside the synchronous belt body.

[0010] In the above technical solution, the synchronous belt further includes a protective layer, which is disposed on the outer surface of the synchronous belt body.

[0011] In the above technical solution, the synchronous belt body, the thickened layer, and the protective layer are further fixed by adhesive bonding or thermal bonding.

[0012] Furthermore, the above technical solution also includes a semi-circular groove, with a semi-circular groove provided between adjacent toothed portions, and a semi-circular protrusion provided on the top of the gear tooth that matches the semi-circular groove.

[0013] In the above technical solution, further, a number of connecting holes are provided through the second retaining ring, and the connecting holes extend inward to the fixed wheel.

[0014] In the above technical solution, the outer end of the first retaining ring has a protruding reinforcing part, and the outer side wall of the reinforcing part forms a frustum structure.

[0015] In the above technical solution, furthermore, a limiting hole is opened on the synchronous pulley, and a limiting post is provided on the inner wall of the retaining ring, with the limiting post installed on the limiting hole.

[0016] In the above technical solution, the first retaining ring has a central hole at its center, through which the fixed wheel and the second retaining ring pass, and a limit slot is formed on the inner wall of the central hole.

[0017] The beneficial effects of this utility model are as follows:

[0018] 1. The combination of guide groove and retaining ring can prevent the synchronous belt from moving relative to the synchronous pulley axis during transmission, thereby maintaining stable operation.

[0019] 2. The synchronous belt body has rounded corners on both sides, which can effectively protect the surface of photovoltaic panels, solar cells and glass from scratches and other marks when transporting them, thereby ensuring the yield rate during production.

[0020] 3. Setting a first and second retaining ring can prevent the timing belt from slipping under conditions of high traction, further improving operational stability.

[0021] 4. Limiting holes are made on the synchronous pulley, and limiting posts are set on the inner wall of the retaining ring. The limiting posts are installed on the limiting holes to achieve the limiting effect and prevent the retaining ring from slipping 360° on the synchronous pulley after installation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the synchronous pulley structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the synchronous pulley from another perspective of the present invention;

[0025] Figure 4 This is an exploded view of the synchronous pulley of this utility model;

[0026] Figure 5 This is a partial schematic diagram of the synchronous belt structure of this utility model;

[0027] Figure 6 This is a utility model Figure 5 A magnified view of a section at point A in the middle;

[0028] Figure 7 This is a cross-sectional view of the synchronous pulley structure of this utility model;

[0029] The markings in the diagram are as follows: 1-synchronous pulley, 2-wheel tooth, 3-tooth groove, 4-synchronous belt, 5-toothed part, 6-ring, 7-guide groove, 8-synchronous belt body, 9-rounded corner, 10-thickened layer, 11-protective layer, 14-semi-circular groove, 15-semi-circular protrusion, 16-ring, 17-limiting post, 18-center hole, 19-limiting bayonet, 20-fixed pulley, 21-first retaining ring, 22-second retaining ring, 23-fixing hole, 24-connecting hole. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0031] Example 1:

[0032] This embodiment provides a synchronous belt pulley set, including:

[0033] Synchronous pulley 1, the surface of synchronous pulley 1 is provided with gear teeth 2, and a tooth groove 3 is formed between adjacent gear teeth 2;

[0034] Synchronous belt 4 has a composite layer structure. Toothed parts 5 are evenly distributed along the circumferential direction on the inner surface of synchronous belt 4. The toothed parts 5 mesh with toothed grooves 3. Guide grooves 7 are provided on the inner wall of synchronous belt 4.

[0035] The retaining ring 6 is sleeved on the middle of the outer surface of the synchronous pulley 1, and the width of the retaining ring 6 and the width of the guide groove 7 are consistent at the mating position.

[0036] A fixed pulley 20 is provided, and a timing belt 4 is fitted on the outer surface of the fixed pulley 20. A first retaining ring 21 is integrally formed at one end of the fixed pulley 20, and the first retaining ring 21 is in contact with one end of the timing pulley 1. A second retaining ring 22 is fixedly connected to the other end of the fixed pulley 20, and the second retaining ring 22 is in contact with the other end of the timing pulley 1.

[0037] Fixing hole 23: The side wall of the synchronous pulley 1 is provided with fixing hole 23 for connecting the synchronous pulley 1 and the fixed pulley 20.

[0038] As can be seen in this embodiment, the surface of the synchronous pulley 1 is provided with teeth 2, and a tooth groove 3 is formed between adjacent teeth 2. The inner surface of the synchronous belt 4 is equidistantly distributed with toothed portions 5 along the circumferential direction. The toothed portions 5 mesh with the tooth grooves 3 to realize the transmission of the synchronous pulley 1 on the synchronous belt 4. The retaining ring 6 is sleeved on the middle of the outer surface of the synchronous pulley 1. The guide groove 7 is opened in the inner wall of the synchronous belt 4. The width of the guide groove 7 and the width of the retaining ring 6 are consistent at the mating position. Through the cooperation of the guide groove 7 and the retaining ring 6, the synchronous belt 4 can be prevented from moving relative to the synchronous pulley 1 axially during transmission, thereby maintaining stable operation. The synchronous belt 4 has a sliding synchronous pulley 20 inside. One end of the fixed pulley 20 has a first retaining ring 21 integrally formed, which has high structural strength and long service life. The other end of the fixed pulley 20 is fixedly connected to a second retaining ring 22. The diameters of the first retaining ring 21 and the second retaining ring 22 are both larger than the diameter of the synchronous pulley 1. After the connection is completed, the first retaining ring 21 fits against one end of the synchronous pulley 1, and the second retaining ring 22 fits against the other end of the synchronous pulley 1. The first retaining ring 21 and the second retaining ring 22 limit the synchronous belt 4, which can prevent the synchronous belt 4 from slipping under large traction conditions and further improve the stability of operation.

[0039] Synchronous pulley 1 is made of aluminum alloy, which has better rigidity and wear resistance than traditional nylon synchronous pulleys. The first retaining ring 21 and the second retaining ring 22 can both be made of carbon steel, which can reduce the overall weight of the synchronous pulley.

[0040] The side wall of the synchronous pulley 1 is provided with a fixing hole 23 for connecting the synchronous pulley 1 and the fixed pulley 20. The two are fixedly connected by screws. The fixing hole 23 can also extend to the shaft of the external drive device. The fixing connection between the synchronous pulley 1, the fixed pulley 20 and the shaft is achieved by screws. The number of fixing holes 23 can be set according to different needs.

[0041] Example 2:

[0042] This embodiment provides a synchronous belt pulley assembly, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0043] Synchronous band 4 includes:

[0044] The synchronous belt body 8 has rounded corners 9 symmetrically arranged on both sides of its upper surface;

[0045] Thickened layer 10 is provided inside the synchronous belt body 8.

[0046] As can be seen from this embodiment, rounded corners 9 are symmetrically arranged on both sides of the synchronous belt body 8, which can effectively protect the surface of photovoltaic panels, solar cells and glass from scratches and other marks when transporting them, thereby ensuring the yield rate during production. The thickened layer 10 is arranged inside the synchronous belt body 8 to improve the overall rigidity of the structure.

[0047] Example 3:

[0048] This embodiment provides a synchronous belt pulley assembly, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0049] Synchronous band 4 also includes:

[0050] Protective layer 11 is provided on the outer surface of synchronous belt body 8.

[0051] As can be seen from this embodiment, the protective layer 11 is set on the outer surface of the synchronous belt body 8. The material of the protective layer 11 is nylon, which prevents scratches, abrasions and other marks from being caused to the items.

[0052] Example 4:

[0053] This embodiment provides a synchronous belt pulley assembly, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0054] The synchronous belt body 8, the thickened layer 10, and the protective layer 11 are fixed together by adhesive or thermal bonding.

[0055] As can be seen from this embodiment, the synchronous belt body 8, the thickened layer 10, and the protective layer 11 are fixed together by adhesive or thermal bonding, resulting in high production speed, low energy consumption, and tight connection.

[0056] Example 5:

[0057] This embodiment provides a synchronous belt pulley assembly, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0058] Also includes:

[0059] A semi-circular groove 14 is provided between adjacent toothed portions 5;

[0060] The top of the gear tooth 2 is provided with a semi-circular protrusion 15 that matches the semi-circular groove 14.

[0061] As can be seen from this embodiment, a semi-circular groove 14 is provided between adjacent toothed portions 5, and a semi-circular protrusion 15 that matches the semi-circular groove 14 is provided on the top of the gear tooth 2.

[0062] Example 6:

[0063] This embodiment provides a synchronous belt pulley assembly, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0064] The second retaining ring 22 has several connecting holes 24 that extend inward to the fixed wheel 20.

[0065] As can be seen from this embodiment, several connecting holes 24 are provided on the second retaining ring 22 and the fixed wheel 20. The connecting holes 24 are provided for installing bolts, which makes installation and fastening easy and disassembly simple. This realizes the detachable connection between the second retaining ring 22 and the fixed wheel 20. If the parts are damaged, they can be replaced individually, saving costs.

[0066] Example 7:

[0067] This embodiment provides a synchronous belt pulley assembly, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0068] The outer end of the first retaining ring 21 has a protruding reinforcing part 16, and the outer side wall of the reinforcing part 16 forms a frustum structure.

[0069] As can be seen from this embodiment, the outer end of the first retaining ring 21 has an outwardly protruding reinforcing part 16. The reinforcing part 16 has a circular ring structure, and the outer side wall of the reinforcing part 16 forms a frustum structure. The reinforcing part 16 is beneficial to improving the compressive strength of the first retaining ring 21.

[0070] Example 8:

[0071] This embodiment provides a synchronous belt pulley assembly, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0072] A limiting hole is provided on the synchronous pulley 1, and a limiting post 17 is provided on the inner wall of the retaining ring 6. The limiting post 17 is installed on the limiting hole.

[0073] As can be seen from this embodiment, a limiting hole is opened on the synchronous pulley 1, and a limiting post 17 is provided on the inner wall of the retaining ring 6. The limiting post 17 is installed on the limiting hole to achieve the limiting effect and prevent the retaining ring 6 from slipping 360° on the synchronous pulley 1 after installation.

[0074] Example 9:

[0075] This embodiment provides a synchronous belt pulley assembly, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0076] The first retaining ring 21 has a central hole 18, through which the fixed wheel 20 and the second retaining ring 22 pass. The inner wall of the central hole 18 has a limit slot 19.

[0077] As can be seen from this embodiment, the center of the first retaining ring 21 has a center hole 18, through which the fixed wheel 20 and the second retaining ring 22 pass. The center hole 18 facilitates the connection of an external drive device, thereby driving the synchronous wheel 1 to rotate. The inner wall of the center hole 18 has a limit slot 19. The shaft of the external drive device is inserted into the center hole 18, and the limit block is locked in the limit slot 19. Then, the motor drives the shaft to rotate, which ensures that the rotation of the shaft drives the synchronous wheel 1 to rotate.

[0078] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A synchronous belt pulley assembly, characterized in that, include: Synchronous pulley (1), the surface of which is provided with gear teeth (2), and a tooth groove (3) is formed between adjacent gear teeth (2); Synchronous belt (4), the synchronous belt (4) is a composite layer structure, the inner surface of the synchronous belt (4) is equidistantly distributed with toothed parts (5) along the circumferential direction, the toothed parts (5) mesh with the toothed groove (3), and the inner wall of the synchronous belt (4) is provided with guide groove (7). A retaining ring (6) is fitted onto the middle of the outer surface of the synchronous pulley (1), and the width of the retaining ring (6) and the width of the guide groove (7) are consistent at the mating position. A fixed wheel (20) is provided, and the timing belt (4) is fitted on the outer surface of the fixed wheel (20). A first retaining ring (21) is integrally formed at one end of the fixed wheel (20), and the first retaining ring (21) is in contact with one end of the timing wheel (1). A second retaining ring (22) is fixedly connected to the other end of the fixed wheel (20), and the second retaining ring (22) is in contact with the other end of the timing wheel (1). Fixing hole (23): The side wall of the synchronous pulley (1) is provided with a fixing hole (23) for connecting the synchronous pulley (1) and the fixed pulley (20).

2. A synchronous belt pulley assembly according to claim 1, characterized in that, The synchronous band (4) includes: Synchronous belt body (8), the upper surface of the synchronous belt body (8) is symmetrically provided with rounded corners (9) on both sides; A thickened layer (10) is disposed inside the synchronous belt body (8).

3. A synchronous belt pulley assembly according to claim 2, characterized in that, The synchronous band (4) also includes: A protective layer (11) is disposed on the outer surface of the synchronous belt body (8).

4. A timing belt pulley assembly according to claim 3, characterized in that, The synchronous belt body (8), the thickened layer (10), and the protective layer (11) are fixed together by adhesive or thermal bonding.

5. A timing belt pulley assembly according to claim 4, characterized in that, Also includes: A semi-circular groove (14) is provided between adjacent toothed portions (5); A semi-circular protrusion (15) is provided on the top of the gear tooth (2) to match the semi-circular groove (14).

6. A timing belt pulley assembly according to claim 5, characterized in that, The second retaining ring (22) has several connecting holes (24) through it, and the connecting holes (24) extend inward to the fixed wheel (20).

7. A timing pulley assembly according to claim 6, characterized in that, The first retaining ring (21) has an outwardly protruding reinforcing part (16) at its outer end, and the outer side wall of the reinforcing part (16) forms a frustum structure.

8. A timing belt pulley assembly according to claim 7, characterized in that, The synchronous pulley (1) has a limiting hole, and the inner wall of the retaining ring (6) is provided with a limiting post (17), which is installed on the limiting hole.

9. A timing belt pulley assembly according to claim 8, characterized in that, The first retaining ring (21) has a central hole (18) at its center, through which the fixed wheel (20) and the second retaining ring (22) pass. The inner wall of the central hole (18) has a limit slot (19).

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