Driving wheel of synchronous pulley

Abstract

The utility model relates to a synchronous belt wheel driving wheel which comprises an upper flange, a lower flange and a wheel body, the upper flange is located above the wheel body, the lower flange is located below the wheel body, the synchronous belt wheel driving wheel further comprises two riveting pieces, and the riveting pieces are sequentially inserted into the upper flange, the wheel body and the lower flange from top to bottom so that the upper flange, the wheel body and the lower flange can be fixed and symmetrically arranged. The wheel body is provided with clamping positions corresponding to the riveting pieces. By the adoption of the scheme, stable connection of all parts of the driving wheel is achieved, meanwhile, the number of clamping positions can be reduced, and therefore the wheel body can be machined more efficiently and conveniently.

Description

TECHNICAL FIELD

[0001] The utility model relates to a synchronous pulley driving wheel. BACKGROUND

[0002] The synchronous pulley driving wheel is one of the key components in the synchronous transmission system, mainly used for driving the synchronous belt movement, transmitting power from the driving source (such as motor) to the driven wheel, so as to realize mechanical transmission.

[0003] The existing synchronous pulley driving wheel includes an upper retaining edge, a lower retaining edge and a wheel body between the upper retaining edge and the lower retaining edge, and a matching groove is provided on the upper retaining edge, the lower retaining edge and the wheel body for inserting the motor shaft or other shaft, so that the rotation of the shaft drives the synchronous pulley driving wheel to rotate. Chinese patent application No. 202122510357.2 discloses a synchronous pulley driving wheel, which is provided with three air slots one and two on the driving wheel body, and a driving reinforcing rib is arranged on the outer edge of the air slot one and two, and a driving rivet hole is arranged corresponding to each driving reinforcing rib. Therefore, by inserting a corresponding number of rivets into the corresponding driving rivet hole, the connection between the upper retaining edge, the lower retaining edge and the wheel body can be realized.

[0004] Therefore, since the synchronous pulley driving wheel requires multiple rivets for assembly, a rivet stop (as shown in Figure 5 ) is arranged at each rivet position to realize the stable connection of the upper retaining edge, the wheel body and the lower retaining edge through the rivets. However, since multiple rivet stops need to be processed, more time is required in the production process. Therefore, how to reduce the number of processed stops while ensuring the connection strength of each part of the synchronous pulley driving wheel during operation, so as to make the assembly more convenient, has become a problem to be solved by the technical personnel in the field. SUMMARY

[0005] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a synchronous pulley driving wheel which can reduce the number of stops while realizing the stable connection of each part of the driving wheel, and thus make the wheel body processing more efficient and convenient.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: including upper retaining edge, lower retaining edge and wheel body, the upper retaining edge is above the wheel body, the lower retaining edge is below the wheel body, characterized by: further including two riveting pieces, each riveting piece is inserted into the upper retaining edge, the wheel body and the lower retaining edge from top to bottom to fix the upper retaining edge, the wheel body and the lower retaining edge and make them symmetrical, the wheel body is provided with a stop corresponding to each riveting piece.

[0007] The utility model further sets up: each riveting piece all includes head portion, connecting section of wheel body insertion and tail portion below lower baffle, each connecting section bottom all is provided with cooperation groove, each tail portion all includes first limit section and second limit section, the top surface of first limit section and second limit section all is opposite with the bottom surface of lower baffle.

[0008] The utility model further sets up: each first limit section and second limit section all are arc-shaped and set up to the opening upwards.

[0009] The utility model further sets up: wheel body is located both sides of each clamping position and is projected and sets up limit plug-in block.

[0010] The utility model further sets up: wheel body is annular and sets up, and the length direction of each limit plug-in block all extends along the inside, and wheel body is located between the limit plug-in block of adjacent and is provided with the installation groove of connecting section insertion, and the installation groove is arc-shaped and sets up to the opening inside.

[0011] The utility model further sets up: wheel body surface is provided with oxide film, and upper baffle and lower baffle all are provided with zinc coating.

[0012] The utility model further sets up: wheel body is made of aluminium alloy.

[0013] Through adopting above-mentioned technical scheme, 1. two riveting pieces make the clamping position of needing processing reduce at this time, improve production efficiency, can significantly reduce material cost and assembly cost and the weight of whole synchronous pulley driving wheel while guaranteeing the connecting strength between upper baffle, wheel body and lower baffle;2. through two riveting pieces, upper baffle, wheel body and lower baffle are firmly connected together, can significantly improve the rigidity and overall stability of whole synchronous pulley, and this design can better resist external load and impact and reduce deformation;3. the symmetrical riveting piece can ensure that stress is evenly distributed, avoids one-sided stress concentration, thereby improves the balance and stability of structure. ACCURATE DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawings needed to be used in embodiment or prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without paying creative labor.

[0015] Figure 1 It is the sectional view from top to bottom of the utility model;

[0016] Figure 2 It is the sectional view from left to right of the utility model.

[0017] Figure 3 For Figure 1 enlarged view of A;

[0018] Figure 4 For Figure 2 enlarged view of B;

[0019] Figure 5 For the prior art provided with six rivet clamping position schematic diagram.

[0020] In the figure: 1 - upper retaining edge;

[0021] 2 - lower retaining edge;

[0022] 3 - wheel body, 31 - clamping position, 32 - limiting block, 33 - mounting groove;

[0023] 4 - rivet, 41 - head, 42 - connecting section, 421 - matching groove, 43 - tail, 431 - first limiting section, 432 - second limiting section. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0025] As Figures 1-5 shown, the utility model discloses a synchronous pulley driving wheel, including upper retaining edge 1, lower retaining edge 2 and wheel body 3, upper retaining edge 1 is located wheel body 3 top, lower retaining edge 2 is located wheel body 3 below, the circumference of wheel body 3 will protrude interval and be provided with tooth, further to make in the process that the output shaft of motor or other shaft drives upper retaining edge 1, wheel body 3 and lower retaining edge 2 rotate, the tooth of lower retaining edge 2 circumference can be linked with synchronous belt, driven wheel and further realize the rotation of driven wheel (this is prior art and does not make specific elaboration here), still including two rivet 4, each rivet 4 is inserted upper retaining edge 1, wheel body 3 and lower retaining edge 2 from top to bottom in proper order to make upper retaining edge 1, wheel body 3 and lower retaining edge 2 fixed and symmetrical arrangement, wheel body 3 is provided with clamping position 31 corresponding to each rivet 4, because compared to Figure 5The rivet is shown to be equipped with 6 (≥2) clamping positions, and a corresponding number of clamping positions 31 are provided. At this time, the two riveting parts 4 make it necessary to process fewer clamping positions 31, improve production efficiency, and significantly reduce material costs and assembly costs while ensuring the connection strength between the upper flange 1, the wheel body 3, and the lower flange 2, and the weight of the entire synchronous pulley driving wheel; 2. The two riveting parts 4 firmly connect the upper flange 1, the wheel body 3, and the lower flange 2 together, which can significantly improve the rigidity and overall stability of the entire synchronous pulley. This design can better resist external loads and impacts and reduce deformation; 3. The symmetrical arrangement of the riveting parts 4 can ensure uniform stress distribution and avoid unilateral stress concentration, thereby improving the balance and stability of the structure.

[0026] Each of the riveting parts 4 includes a head 41 on the upper flange 1, a connecting section 42 inserted into the wheel body 3, and a tail 43 below the lower flange 2. The bottom of each connecting section 42 is provided with a matching groove 421, and each tail 43 includes a first limiting section 431 and a second limiting section 432. The top surfaces of the first and second limiting sections 431 and 432 are in contact with the bottom surface of the lower flange 2. After the riveting parts 4 are inserted into the upper flange 1, the wheel body 3, and the lower flange 2, the top surfaces of the first and second limiting sections 431 and 432 of the tail 43 will be in contact with the bottom surface of the lower flange 2. Therefore, the first and second limiting sections 431 and 432 are difficult to move upwards and pass through the lower flange 2 without external force, and the riveting parts 4 can be stably positioned between the upper flange 1, the wheel body 3, and the lower flange 2. After the riveting parts 4 are installed, the upper flange 1, the wheel body 3, and the lower flange 2 can be stably connected together. In addition, since the bottom of the connecting section 42 is provided with a matching groove 421, and the tail 43 is in contact with the lower flange 2, the riveting strength of the upper flange 1, the lower flange 2, and the wheel body 3 can be improved, and the tail 43 can seal the bottom of the lower flange 2, making it difficult for external moisture to enter above the lower flange 2 through the tail 43.

[0027] Preferably, each of the first limiting section 431 and the second limiting section 432 is arranged in an arc shape with the opening facing upward. Since each of the first limiting section 431 and the second limiting section 432 is arranged in an arc shape, when the riveting piece 4 is inserted between the upper retaining edge 1, the wheel body 3 and the lower retaining edge 2, the first limiting section 431 and the second limiting section 432 are first inserted into the bottom of the first limiting section 431 and the second limiting section 432, i.e., the side with the smallest width, thereby facilitating the installation of the first limiting section 431 and the second limiting section 432. Since the top of the first limiting section 431 and the second limiting section 432 has a larger width than the bottom, when the top of the first limiting section 431 and the second limiting section 432 abuts against the bottom surface of the lower retaining edge 2, the first limiting section 431 and the second limiting section 432 cannot move upward beyond the lower retaining edge 2, thereby improving the stability of the riveting piece 4 between the upper retaining edge 1, the wheel body 3 and the lower retaining edge 2.

[0028] In addition, the wheel body 3 is provided with a limiting plug 32 on both sides of each clamping site 31. When the riveting piece 4 is installed between the upper retaining edge 1, the wheel body 3 and the lower retaining edge 2, the limiting plug 32 is located on both sides of the connecting section 42, thereby facilitating the determination of the installation position of the riveting piece 4.

[0029] Preferably, the wheel body 3 is arranged in a ring shape, the length direction of each limiting plug 32 extends inward, and the wheel body 3 is provided with an installation slot 33 for the connecting section 42 between adjacent limiting plugs 32. The installation slot 33 is arranged in an arc shape with the opening facing inward. Since the length direction of each limiting plug 32 extends inward and the wheel body 3 is provided with an installation slot 33 between adjacent limiting plugs 32, when the riveting piece 4 is inserted between the upper retaining edge 1, the wheel body 3 and the lower retaining edge 2, the connecting section 42 is located in the installation slot 33 and is limited by the limiting plugs 32 on both sides, thereby enabling the riveting piece 4 to be more stably installed in the corresponding installation position without shaking.

[0030] Preferably, the surface of the wheel body 3 is provided with an oxidation film (not shown in the figure), and the upper retaining edge 1 and the lower retaining edge 2 are both provided with a zinc coating layer (not shown in the figure). The oxidation film on the surface of the wheel body 3 can improve wear resistance, corrosion resistance and reduce wear. The zinc coating layer can effectively prevent corrosion of the retaining edge part of the upper retaining edge 1 and the lower retaining edge 2, thereby prolonging the service life. In addition, the zinc coating layer has good gloss, which can improve the visual effect of the product.

[0031] Preferably, the wheel body 3 is made of aluminum alloy, and the wheel body 3 blank is formed by aluminum die casting. The aluminum die casting can realize efficient mass production and reduce the cost. The aluminum alloy has the advantages of low density, good heat dissipation performance, corrosion resistance and the like, which means that the use of aluminum alloy can significantly reduce the weight of the wheel body 3, and then the lighter belt wheel can reduce the inertia, improve the response speed and energy efficiency of the system, especially in high-speed running equipment, and the aluminum alloy has good thermal conductivity, which can effectively dissipate heat and reduce thermal deformation and performance degradation caused by high temperature.

[0032] The above description of disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A synchronous belt pulley drive wheel comprising an upper flange, a lower flange and a wheel body, the upper flange being located above the wheel body and the lower flange being located below the wheel body, characterised in that: The two riveting pieces are sequentially inserted with the upper flange, the wheel body and the lower flange from top to bottom to fix the upper flange, the wheel body and the lower flange and symmetrically arrange them, the wheel body is provided with a clamping position corresponding to each riveting piece, each riveting piece comprises a head on the upper flange, a connecting section inserted into the wheel body and a tail below the lower flange, a matching groove is formed through the bottom of each connecting section, each tail comprises a first limiting section and a second limiting section, and the top surfaces of the first limiting section and the second limiting section are in abutment with the bottom surface of the lower flange.

2. The synchronous belt pulley drive pulley of claim 1, wherein: Each first limiting section and second limiting section is arranged in an arc shape with the opening facing upward.

3. The pulley drive wheel of claim 1, wherein: The wheel body protrudes limiting insertion blocks on both sides of each clamping position.

4. The pulley drive wheel of claim 3, wherein: The wheel body is arranged in a ring shape, the length direction of each limiting insertion block extends along the inner side, the wheel body is provided with a mounting groove between adjacent limiting insertion blocks for the insertion of the connecting section, and the mounting groove is arranged in an arc shape with the opening facing inward.

5. The pulley drive wheel of any one of claims 1-4, wherein: The surface of the wheel body is provided with an oxidation film, and the upper flange and the lower flange are both provided with a zinc coating.

6. A synchronous belt pulley drive pulley as set forth in claim 5 wherein: The wheel body is made of aluminum alloy.

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