CN220646684U - Noise reduction type engine output sprocket - Google Patents

Abstract

The utility model relates to the technical field of engine output chain wheels, in particular to a noise-reducing engine output chain wheel, which comprises a circular ring and threads, wherein the outer wall of the circular ring is connected with a plurality of protection structures, the inner wall of the circular ring is provided with threads, the inner wall of the threads is connected with a cylinder in a threaded manner, the inner wall of the cylinder is provided with a slot, the front of the top of the cylinder is connected with a bolt in a threaded manner, after an external chain is contacted with a protruding tooth in the protection structure, lubricating oil is dripped into the inside of a groove at the position of the chain and the protruding tooth, the lubricating oil inside the groove is shielded due to the contact of the chain and the protruding tooth, the lubricating oil inside the groove is clamped on the chain after the lubricating oil on the chain is consumed, the lubricating time is prolonged, the abrasion of a noise-reducing layer is prevented, the noise reducing effect of the engine output chain wheel is ensured, and the service life of the engine output chain wheel is ensured.

Description

Noise reduction type engine output sprocket

Technical Field

The utility model relates to the technical field of noise reduction type engine output chain wheels and precise forming devices thereof, in particular to a noise reduction type engine output chain wheel and a precise forming device thereof.

Background

The output chain wheel of the engine is a wheel with cog type sprocket for meshing with blocks with accurate pitch on the chain links or cables.

For example, the utility model discloses a noise-reducing type motorcycle engine output sprocket with an authorized bulletin number of CN206320265U, the outer surface of the output sprocket body is coated with a damping layer, the center of the output sprocket body is provided with a spline hole along the axial direction, the two axial ends of the output sprocket body are respectively provided with annular bosses extending back to each other, and the inner walls of the annular bosses are inclined surfaces.

Disclosure of Invention

The utility model aims to solve the problems that the noise reduction effect of an engine output chain wheel is reduced and the service life of the engine output chain wheel is shortened, and provides the noise reduction type engine output chain wheel and a precision forming device thereof.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides an engine output sprocket falls in design, includes ring and screw thread, the outer wall connection of ring has a plurality of protective structure, the inner wall processing of ring has the screw thread, the inner wall threaded connection of screw thread has the drum, the inner wall processing of drum has the slot, the place ahead threaded connection in top of drum has the bolt.

Preferably, the protection structure comprises a plurality of protruding teeth and a noise reduction layer, wherein the inner sides of the protruding teeth are fixedly connected with the outer wall of the circular ring, the left side and the right side of the outer wall of the protruding teeth are fixedly connected with the inner side of the noise reduction layer respectively, and grooves are formed in the inner wall of the noise reduction layer on the right side.

Preferably, the inner wall of the groove is provided with lubricating oil.

Preferably, a curved plate is fixedly connected above the front surface of the circular ring.

Preferably, a round opening is formed in the top of the outer wall of the cylinder.

The precise forming device comprises a plug rod, a precise forming device and a plurality of slots as claimed in any one of claims, wherein the outer wall of the plug rod is inserted into the inner wall of the slot, the front part of the top of the plug rod is abutted against the bottom of a bolt, and the rear end face of the plug rod is fixedly connected with the output end of the precise forming device.

The noise reduction type engine output chain wheel and the precise forming device thereof provided by the utility model have the beneficial effects that: after external chain contacts with the protruding tooth through among the protective structure, drip into lubricating oil in chain and protruding tooth department, lubricating oil can get into the inside of recess, because the chain can contact with protruding tooth, can shelter from the inside lubricating oil of recess, after the lubricating oil consumption on the chain, the inside lubricating oil of recess can press from both sides on the chain, extension lubrication time prevents to make an uproar layer wearing and tearing, has guaranteed the noise reduction effect of engine output sprocket, has guaranteed the life of engine output sprocket.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of the connection relationship among the ring, the teeth and the noise reduction layer in FIG. 1;

FIG. 3 is a schematic view of the connection relationship among the cylinder, the slot and the bolt in FIG. 1;

fig. 4 is a schematic structural diagram of a in fig. 1.

In the figure: 1. the device comprises a circular ring, 2, a protective structure, 201, protruding teeth, 202, a noise reduction layer, 203, a groove, 3, threads, 4, a cylinder, 5, a slot, 6, bolts, 7, a curved plate, 8, an inserted link, 9, a precision forming device, 10, a screw rod, 11 and a ball.

Detailed Description

The utility model is further described below with reference to the accompanying drawings:

examples

Please refer to fig. 1-4: in this embodiment, an engine output sprocket falls, including ring 1 and screw thread 3, the outer wall connection of ring 1 has a plurality of protective structure 2, and the inner wall processing of ring 1 has screw thread 3, and the inner wall threaded connection of screw thread 3 has drum 4, and drum 4 atress forward rotation can break away from screw thread 3, and the inner wall processing of drum 4 has slot 5, and the place ahead threaded connection in top of drum 4 has bolt 6.

The protection structure 2 comprises a plurality of protruding teeth 201 and a noise reduction layer 202, wherein the inner sides of the protruding teeth 201 are fixedly connected with the outer wall of the circular ring 1, the left side and the right side of the outer wall of the protruding teeth 201 are respectively fixedly connected with the inner side of the noise reduction layer 202, the noise reduction layer 202 is made of thermoplastic elastomer, and a groove 203 is formed in the inner wall of the noise reduction layer 202 on the right side;

after external chain and the contact of protruding tooth 201 in the protective structure 2, drip into lubricating oil in chain and protruding tooth 201 department, lubricating oil can get into the inside of recess 203, because the chain can contact with protruding tooth 201, can shelter from the inside lubricating oil of recess 203, after the lubricating oil consumption on the chain, the inside lubricating oil of recess 203 can clamp on the chain, extension lubrication time prevents to make an uproar layer 202 wearing and tearing, has guaranteed the noise reduction effect of engine output sprocket, has guaranteed the life of engine output sprocket.

The inner wall of the groove 203 is provided with lubricating oil, a curved plate 7 is fixedly connected above the front face of the circular ring 1, and a circular opening is processed at the top of the outer wall of the cylinder 4.

The utility model provides a precision forming device, including inserted bar 8 and precision forming device 9, the slot 5 of arbitrary item, the outer wall of inserted bar 8 is pegged graft mutually with the inner wall of slot 5, the top the place ahead of inserted bar 8 offsets tightly with the bottom of bolt 6, bolt 6 supports tightly with inserted bar 8 top and plays the reinforcement effect, the rear end face of inserted bar 8 is fixedly connected with the output of precision forming device 9 mutually, how the operation of precision forming device 9 uses is prior art, do not do too much and state about, the model is selected according to the user demand.

Working principle:

when this sprocket is used (by ring and protective structure 2 constitution), make drum 4 and ring 1 inner wall's screw thread 3 carry out threaded connection earlier, accomplish drum 4 and ring 1's installation, then the slot 5 of drum 4 inner wall is pegged graft mutually with the outer wall of inserted bar 8, afterwards bolt 6 passes through drum 4 and rotates downwards, make the bottom of bolt 6 offset with the top of inserted bar 8 tightly, then precision forming device 9 starts and makes the output drive inserted bar 8 rotate, thereby cooperate drum 4 to drive ring 1 and rotate, noise reduction layer 202 is through self thermoplastic elastomer material, noise that produces when can be used to the sprocket adsorbs, thereby play the effect of making an uproar, in external chain and tooth 201 contact back, drip into lubricating oil in chain and tooth 201 department, lubricating oil can get into the inside of recess 203, because the chain can contact with tooth 201, can shelter from the inside lubricating oil of recess 203, after the lubricating oil consumption on the chain, lubricating oil inside recess 203 can clamp on the chain, the extension lubrication time, prevent to make an uproar layer and put wearing and tearing down (the recess 203 can be stored, when the drum 4 drives ring 1 rotation, noise reduction layer 202 is used to store the lubricating oil, the effect is compared with the inside can be stored, and the extension chain can be compared with the extension chain has been stored, therefore, can be had the effect of having been stored, and can be compared, and has been stored, can be had the life-time is compared, and has been stored, can be had the effect has been compared and has been stored.

Examples

Please refer to fig. 1-4: in this embodiment, a noise reduction type engine output sprocket and its precision molding device, still include screw rod 10 and ball 11, the outer wall of screw rod 10 and the inner wall threaded connection of bent plate 7, the top of screw rod 10 is fixedly connected with the bottom of ball 11, the outer wall bottom of screw rod 10 is pegged graft with the top of drum 4 mutually.

Working principle:

after the cylinder 4 and the circular ring 1 are connected, the screw 10 is rotated downwards through the curved plate 7 by matching with the circular ball 11, so that the bottom of the outer wall of the screw 10 is spliced with the top of the cylinder 4, and the connection stability between the circular ring 1 and the cylinder 4 is improved.

While the utility model has been shown and described with reference to a preferred embodiment, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the scope of the utility model.

Claims (6)

1. The utility model provides an engine output sprocket falls with a noise, includes ring (1) and screw thread (3), its characterized in that: the outer wall of ring (1) is connected with a plurality of protective structure (2), the inner wall processing of ring (1) has screw thread (3), the inner wall threaded connection of screw thread (3) has drum (4), the inner wall processing of drum (4) has slot (5), the place ahead threaded connection in top of drum (4) has bolt (6).

2. A noise reduction type engine output sprocket as set forth in claim 1, wherein: the protection structure (2) comprises protruding teeth (201) and a noise reduction layer (202), wherein the inner sides of the protruding teeth (201) are fixedly connected with the outer wall of the circular ring (1), the left side and the right side of the outer wall of the protruding teeth (201) are fixedly connected with the inner side of the noise reduction layer (202), and grooves (203) are formed in the inner wall of the noise reduction layer (202) on the right side.

3. A noise reduction type engine output sprocket as set forth in claim 2, wherein: the inner wall of the groove (203) is provided with lubricating oil.

4. A noise reduction type engine output sprocket as set forth in claim 1, wherein: a curved plate (7) is fixedly connected above the front face of the circular ring (1).

5. A noise reduction type engine output sprocket as set forth in claim 1, wherein: the top of the outer wall of the cylinder (4) is provided with a round opening.

6. A noise reduction type engine output sprocket as set forth in claim 1, wherein: comprising a bayonet (8) and precision forming means (9), and a plurality of slots (5) according to any one of claims 1 to 5, characterized in that: the outer wall of inserted bar (8) is pegged graft with the inner wall of slot (5), the top place ahead of inserted bar (8) offsets with the bottom of bolt (6) tightly, the rear end face of inserted bar (8) is fixedly connected with the output of precision forming device (9).