Combined chain wheel

Abstract

The combined type chain wheel comprises a chain wheel body, the chain wheel body is composed of a layered structure, the layered structure comprises a gear ring layer, a reinforcing layer and a mounting layer, the gear ring layer is arranged on the outermost layer, the reinforcing layer is arranged on the middle layer, the mounting layer is arranged on the innermost layer, a key groove is formed in the mounting layer, and the key groove is formed in the middle of the mounting layer. The gear ring layer is sleeved on the outer wall of the reinforcing layer, the first fixing bolt and the fixing hole are adaptively mounted, the gear ring layer is fixedly connected with the reinforcing layer, the reinforcing layer is sleeved on the outer wall of the mounting layer, the positioning stud penetrates through the positioning hole formed in the reinforcing layer, and the fixing nut and the positioning stud are adaptively mounted. And through layered combination and assembly, disassembly and replacement are facilitated, and the maintenance cost is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of chain wheels, in particular to a combined chain wheel. BACKGROUND

[0002] In a power transmission system of an automobile, a chain wheel is an indispensable component, and the performance of the chain wheel is directly related to the overall operation performance of the automobile. With the rapid development of the automobile industry, the performance requirements for the chain wheel are increasingly improved. The traditional single-structure chain wheel gradually fails to meet the diversified needs of modern automobiles in many aspects.

[0003] Some existing combined chain wheels are usually manufactured by an integral forming process, and the structure is relatively fixed. When one part of the chain wheel is severely worn and needs to be replaced during long-term use, the entire chain wheel needs to be replaced, and the single part of the chain wheel cannot be replaced, thereby increasing the maintenance cost and causing waste of resources. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the problems in the background art, the application provides a combined chain wheel.

[0005] The combined chain wheel provided by the application adopts the following technical scheme:

[0006] The combined chain wheel comprises a chain wheel body, the chain wheel body is composed of a layered structure, the layered structure comprises a gear ring layer, a reinforcing layer and a mounting layer, the gear ring layer is arranged at the outermost layer, the reinforcing layer is arranged at the middle layer, and the mounting layer is arranged at the innermost layer, a first fixing assembly is arranged between the gear ring layer and the reinforcing layer, a second fixing assembly is arranged between the reinforcing layer and the mounting layer, a key groove is arranged in the interior of the mounting layer, and a buffer assembly is further arranged in the interior of the mounting layer.

[0007] Preferably, the first fixing assembly comprises a first mounting ring mounted on the outer wall of the reinforcing layer, the gear ring layer is sleeved on the outer wall of the reinforcing layer, and one side of the gear ring layer is attached to one side of the first mounting ring.

[0008] Preferably, a plurality of corresponding fixing holes are further arranged in the two end faces of the gear ring layer and one side of the first mounting ring, and a first fixing bolt is arranged in the interior of the fixing hole.

[0009] Preferably, the second fixing assembly comprises a second mounting ring mounted on the outer wall of the mounting layer, the reinforcing layer is sleeved on the outer wall of the mounting layer, and one side of the reinforcing layer is attached to one side of the second mounting ring.

[0010] Preferably, one side of the second mounting ring is provided with a plurality of positioning studs, both end faces of the reinforcing layer are provided with a plurality of positioning holes corresponding to the positioning studs, the positioning studs pass through the positioning holes and are fixed by fixing nuts.

[0011] Preferably, the buffer assembly comprises two symmetrical rubber sleeves mounted in the mounting layer, and high-strength metal wires are embedded in the rubber sleeves.

[0012] Preferably, the inner wall of the metal bushing is provided with a groove, the outer wall of the rubber sleeve is provided with a protrusion embedded in the groove, the outer wall of the metal bushing is provided with a texture, an adjusting bolt is rotatably mounted in a through hole formed in the outer wall of the metal bushing, and one end of the adjusting bolt passes through a screw hole formed in the mounting layer.

[0013] To sum up, the present application has the following beneficial technical effects:

[0014] 1. The first fixing assembly and the second fixing assembly are arranged, the gear ring layer is sleeved on the outer wall of the reinforcing layer, the first fixing bolt is adaptively mounted between the fixing hole, the gear ring layer is fixedly connected with the reinforcing layer, the reinforcing layer is sleeved on the outer wall of the mounting layer, the positioning stud passes through the positioning hole formed in the reinforcing layer, the fixing nut is adaptively mounted between the positioning stud, the reinforcing layer and the mounting layer are fixedly connected, the gear ring layer, the reinforcing layer and the mounting layer are combined and assembled in layers, so that manufacturing and maintenance are facilitated, and when a layer is damaged, the layer can be individually disassembled and replaced, thereby reducing maintenance cost.

[0015] 2. The buffer assembly is arranged, the rubber sleeve is arranged in the mounting layer, the metal bushing is driven to extrude the rubber sleeve by rotating the adjusting bolt, the rubber sleeve is tightly attached to the transmission shaft, so that the sprocket body and the transmission shaft are tightly connected, and meanwhile, the high-strength metal wires are embedded in the rubber sleeve, so that elastic buffering is formed between the sprocket body and the transmission shaft, and vibration and impact in the transmission process can be absorbed. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural schematic view of a combined sprocket in the embodiment of the present application;

[0017] Figure 2 is a split schematic view between the gear ring layer and the reinforcing layer in the embodiment of the present application;

[0018] Figure 3 is a split schematic view between the reinforcing layer and the mounting layer in the embodiment of the present application;

[0019] Figure 4 is a split schematic view of the internal structure of the mounting layer in the embodiment of the present application.

[0020] Explanation of reference numerals in the attached drawings: 1. Sprocket body; 2. Gear ring layer; 3. Reinforcing layer; 4. Mounting layer; 5. First mounting ring; 6. First fixing bolt; 7. Second mounting ring; 8. Positioning stud; 9. Fixing nut; 10. Keyway; 11. Rubber sleeve; 12. Metal bushing; 13. Groove; 14. Protrusion; 15. Adjusting bolt. Detailed Implementation

[0021] The following is in conjunction with the appendix Figure 1 —4. This application will be described in further detail.

[0022] This application discloses a combined sprocket, including a sprocket body 1. The sprocket body 1 is composed of a layered structure, which includes a toothed ring layer 2, a reinforcing layer 3, and a mounting layer 4. The toothed ring layer 2 is disposed on the outermost layer, the reinforcing layer 3 is disposed on the middle layer, and the mounting layer 4 is disposed on the innermost layer. A first fixing component is disposed between the toothed ring layer 2 and the reinforcing layer 3, and a second fixing component is disposed between the reinforcing layer 3 and the mounting layer 4. A keyway 10 is disposed inside the mounting layer 4, and a buffer component is also disposed inside the mounting layer 4.

[0023] refer to Figure 2 and Figure 3 The first fixing component includes a first mounting ring 5 installed on the outer wall of the reinforcing layer 3. A toothed ring layer 2 is fitted onto the outer wall of the reinforcing layer 3, with one side of the toothed ring layer 2 abutting against one side of the first mounting ring 5. Several corresponding fixing holes are also provided on both ends of the toothed ring layer 2 and one side of the first mounting ring 5. First fixing bolts 6 are installed inside the fixing holes. The second fixing component includes a second mounting ring 7 installed on the outer wall of the mounting layer 4. The reinforcing layer 3 is fitted onto the outer wall of the mounting layer 4, with one side of the reinforcing layer 3 abutting against one side of the second mounting ring 7. Several positioning studs 8 are provided on one side of the second mounting ring 7. Several positioning holes corresponding to the positioning studs 8 are provided on both ends of the reinforcing layer 3. The positioning studs 8 pass through the positioning holes and are fixed by fixing nuts 9. More specifically, by opening several corresponding fixing holes on both ends of the gear ring layer 2 and one side of the first mounting ring 5, and then fitting the first fixing bolt 6 to the fixing holes, the gear ring layer 2 and the reinforcing layer 3 can be fixedly connected. By fitting the reinforcing layer 3 onto the outer wall of the mounting layer 4, and having the positioning stud 8 installed on the second mounting ring 7 on the outer wall of the mounting layer 4 pass through the corresponding positioning holes on both ends of the reinforcing layer 3, and then fitting the fixing nut 9 to the positioning stud 8, the reinforcing layer 3 and the mounting layer 4 can be fixedly connected. Through layered assembly, manufacturing and maintenance become more convenient. When a certain layer is damaged, it can be disassembled and replaced separately, reducing maintenance costs without replacing the entire sprocket body 1.

[0024] refer to Figure 4The buffer assembly comprises two symmetrical rubber sleeves 11 mounted inside the mounting layer 4, high-strength metal wires are embedded inside the two rubber sleeves 11, symmetrical metal bushings 12 are arranged on the two side outer walls of the rubber sleeves 11, recesses 13 are arranged on the inner walls of the metal bushings 12, protrusions 14 are arranged on the outer walls of the rubber sleeves 11, the protrusions 14 are embedded inside the recesses 13, textures are arranged on the outer walls of the metal bushings 12, adjusting bolts 15 are rotatably mounted in the through holes arranged on the outer walls of the metal bushings 12, one end of the adjusting bolt 15 penetrates through the screw hole arranged on the mounting layer 4, and more specifically, the rubber sleeve 11 is arranged inside the mounting layer 4, the metal bushing 12 is arranged on the two sides of the rubber sleeve 11, the protrusion 14 arranged on the outer wall of the rubber sleeve 11 is embedded in the recess 13 arranged on the inner wall of the metal bushing 12, the connection between the rubber sleeve 11 and the metal bushing 12 is more firm, after the transmission shaft is mounted with the sprocket body 1, the metal bushing 12 is driven to extrude the rubber sleeve 11 by rotating the adjusting bolt 15, so that the rubber sleeve 11 is tightly attached to the transmission shaft, thereby the sprocket body 1 is tightly connected with the transmission shaft, meanwhile, the high-strength metal wires are embedded inside the rubber sleeve 11, so that the sprocket body 1 and the transmission shaft form elastic buffering, and the vibration and impact in the transmission process can be absorbed.

[0025] The implementation principle of the combined sprocket is as follows: in use, the ring gear layer 2 is sleeved on the outer wall of the reinforcing layer 3, the fixing holes arranged on the ring gear layer 2 correspond to the fixing holes arranged on the first mounting ring 5 arranged on the outer wall of the reinforcing layer 3, then the first fixing bolt 6 is mounted in the fixing holes, so that the ring gear layer 2 is fixedly connected with the reinforcing layer 3, then the reinforcing layer 3 is sleeved on the outer wall of the mounting layer 4, the positioning stud 8 mounted on the second mounting ring 7 arranged on the outer wall of the mounting layer 4 penetrates through the positioning hole arranged on the reinforcing layer 3, at this time, the fixing nut 9 is mounted on the positioning stud 8, so that the reinforcing layer 3 is fixedly connected with the mounting layer 4, the ring gear layer 2, the reinforcing layer 3 and the mounting layer 4 are combined and assembled in layers, so that the manufacturing and maintenance are facilitated, when a layer is damaged, the layer can be individually disassembled and replaced, the maintenance cost is reduced, meanwhile, the rubber sleeve 11 is arranged inside the mounting layer 4, the protrusion 14 arranged on the outer wall of the rubber sleeve 11 is embedded in the recess 13 arranged on the inner wall of the metal bushing 12, after the transmission shaft is mounted with the sprocket body 1, the metal bushing 12 is driven to extrude the rubber sleeve 11 by rotating the adjusting bolt 15, so that the rubber sleeve 11 is tightly attached to the transmission shaft, thereby the sprocket body 1 is tightly connected with the transmission shaft, meanwhile, the high-strength metal wires are embedded inside the rubber sleeve 11, so that the sprocket body 1 and the transmission shaft form elastic buffering, and the vibration and impact in the transmission process can be absorbed.

[0026] The above are all preferred embodiments of the application, and do not limit the protection scope of the application, therefore: all equivalent changes made according to the structure, shape and principle of the application should be covered within the protection scope of the application.

Claims

1. A combined sprocket, characterized in that: The sprocket body (1) is composed of a layered structure, which includes a gear ring layer (2), a reinforcing layer (3), and a mounting layer (4). The gear ring layer (2) is located on the outermost layer, the reinforcing layer (3) is located on the middle layer, and the mounting layer (4) is located on the innermost layer. A first fixing component is provided between the gear ring layer (2) and the reinforcing layer (3), and a second fixing component is provided between the reinforcing layer (3) and the mounting layer (4). A keyway (10) is provided inside the mounting layer (4), and a buffer component is also provided inside the mounting layer (4).

2. The combined sprocket according to claim 1, characterized in that: The first fixing component includes a first mounting ring (5) mounted on the outer wall of the reinforcing layer (3), the toothed ring layer (2) is fitted onto the outer wall of the reinforcing layer (3), and one side of the toothed ring layer (2) is in contact with one side of the first mounting ring (5).

3. A combined sprocket according to claim 2, characterized in that: Several corresponding fixing holes are provided on both ends of the toothed ring layer (2) and one side of the first mounting ring (5), and a first fixing bolt (6) is provided inside the fixing hole.

4. A combined sprocket according to claim 1, characterized in that: The second fixing component includes a second mounting ring (7) mounted on the outer wall of the mounting layer (4), the reinforcing layer (3) fitting onto the outer wall of the mounting layer (4), and one side of the reinforcing layer (3) abutting against one side of the second mounting ring (7).

5. A combined sprocket according to claim 4, characterized in that: The second mounting ring (7) has several positioning studs (8) on one side. The two ends of the reinforcing layer (3) have several positioning holes corresponding to the positioning studs (8). The positioning studs (8) pass through the positioning holes and are fixed by fixing nuts (9).

6. A combined sprocket according to claim 1, characterized in that: The buffer assembly includes two symmetrical rubber sleeves (11) installed inside the mounting layer (4). High-strength metal wires are embedded inside the two rubber sleeves (11), and symmetrical metal bushings (12) are provided on the outer walls of both sides of the rubber sleeves (11).

7. A combined sprocket according to claim 6, characterized in that: The inner wall of the metal bushing (12) is provided with a groove (13), the outer wall of the rubber sleeve (11) is provided with a protrusion (14), the protrusion (14) is embedded in the groove (13), the outer wall of the metal bushing (12) is provided with a texture, and an adjusting bolt (15) is rotatably installed in the through hole opened on the outer wall of the metal bushing (12), one end of the adjusting bolt (15) passes through the screw hole opened on the mounting layer (4).

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