CN216242147U - Automobile engine crankshaft damping belt pulley - Google Patents

Abstract

The utility model discloses a damping belt pulley for a crankshaft of an automobile engine, relates to the technical field of crankshaft belt pulleys, and aims to solve the problems that the existing belt pulley is single in structure, cannot linearly eliminate generated vibration when the belt pulley and a belt slip, and has to be improved in functionality and practicability. The utility model discloses a damping tensioning spring, including outer wheel of belt pulley, fixed block and linkage block, the inside axis position department of outer wheel of belt pulley is provided with the interior wheel of belt pulley, two linkage blocks of fixedly connected with on the side surface of the interior wheel of belt pulley, two fixed blocks of fixedly connected with on the inner wall of outer wheel of belt pulley, be provided with the linkage spring between fixed block and the linkage block, the both ends of linkage spring are supported respectively on the adjacent side surface of fixed block and linkage block, the inside of outer wheel of belt pulley is provided with two damping tensioning springs, and two damping tensioning springs are located the both sides position department of fixed block respectively.

Description

Automobile engine crankshaft damping belt pulley

Technical Field

The utility model relates to the technical field of crankshaft pulleys, in particular to a damping pulley for a crankshaft of an automobile engine.

Background

When the automobile engine works, the impact force generated by combustion in the combustion cylinder drives the crankshaft to rotate, and then the belt pulley arranged at one end of the crankshaft drives other structures to rotate, so that the crankshaft belt pulley is one of important power transmission parts in the whole engine, and the stable work of the crankshaft belt pulley is related to the stable work of the whole engine.

The existing belt pulley has a single structure, cannot linearly eliminate generated vibration when the belt pulley and a belt slip, and has to be improved in functionality and practicability; therefore, the market urgently needs to develop a damping belt pulley of a crankshaft of an automobile engine to help people solve the existing problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a damping belt pulley for a crankshaft of an automobile engine, which aims to solve the problems that the existing belt pulley in the background art has a single structure, cannot linearly eliminate generated vibration when the belt pulley and a belt slip, and has to be improved in functionality and practicability.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an automobile engine bent axle shock attenuation belt pulley, includes the belt pulley foreign steamer, the inside axis position department of belt pulley foreign steamer is provided with the interior wheel of belt pulley, two linkage blocks of fixedly connected with on the side surface of the interior wheel of belt pulley, two fixed blocks of fixedly connected with on the inner wall of belt pulley foreign steamer, be provided with the linkage spring between fixed block and the linkage block, the both ends of linkage spring are supported respectively on the adjacent side surface of fixed block and linkage block, the inside of belt pulley foreign steamer is provided with two shock attenuation tension springs, and two shock attenuation tension springs are located the both sides position department of fixed block respectively, and shock attenuation tension spring is located between the wheel of belt pulley foreign steamer and the interior wheel of belt pulley.

Preferably, the damping tension spring is annular.

Preferably, the inner wall of the outer wheel of the belt pulley is integrally connected with two limiting connecting blocks, and the two limiting connecting blocks are respectively positioned at two ends of the inner cavity of the outer wheel of the belt pulley.

Preferably, the outer side surface of the limiting connecting block is fixedly provided with a limiting check ring, and the inner diameter of the limiting check ring is smaller than that of the inner wheel of the belt pulley.

Preferably, a connecting shaft is integrally connected to a middle shaft of one end face of the inner wheel of the belt pulley, the diameter of the connecting shaft is smaller than the inner diameter of the limiting retainer ring, a connecting end block is fixedly mounted at one end of the connecting shaft, and a plurality of belt grooves are formed in the side surface of the outer wheel of the belt pulley.

Preferably, a radiating groove is formed in one end face of the outer wheel of the belt pulley, a plurality of radiating through holes and flow deflectors are arranged on the inner end face of the radiating groove, and the flow deflectors correspond to the radiating through holes one by one.

Compared with the prior art, the utility model has the beneficial effects that:

1. the utility model is characterized in that the inner wheel of the belt pulley is arranged at the position of the middle shaft in the outer wheel of the belt pulley, two linkage blocks are fixedly connected on the side surface of the inner wheel of the belt pulley, two fixing blocks are fixedly connected on the inner wall of the outer wheel of the belt pulley, linkage springs are arranged between the fixing blocks and the linkage blocks, two ends of the linkage springs are respectively propped against the adjacent side surfaces of the fixing blocks and the linkage blocks, two damping tension springs are arranged in the outer wheel of the belt pulley, and the two damping tension springs are respectively arranged at the two sides of the fixing blocks, and the damping tension springs are arranged between the outer wheel of the belt pulley and the inner wheel of the belt pulley, so that the fixing blocks, the linkage blocks and the linkage springs can be utilized to drive the outer wheel of the belt pulley to rotate when the inner wheel of the belt pulley rotates, and the outer wheel of the belt is pulled by the belt, so that the outer wheel of the belt can generate position deviation with the inner wheel of the belt pulley in the rotating process, and then make the shock attenuation tension spring's subsection receive the extrusion, this belt pulley possesses certain position adjustment volume under the effect of shock attenuation tension spring this moment, and then can rotate the vibrations that produce when taking place to skid between in-process belt and the belt pulley to the belt pulley and carry out the shock attenuation operation, and whole shock attenuation effect is linear smooth.

Drawings

FIG. 1 is an overall schematic view of the present invention;

FIG. 2 is an overall back view of the present invention;

fig. 3 is an enlarged view of the utility model at a.

In the figure: 1. a pulley outer wheel; 2. a heat sink; 3. a flow deflector; 4. a heat dissipating through hole; 5. a pulley inner wheel; 6. a linkage block; 7. a linkage spring; 8. a limiting connecting block; 9. a limit retainer ring; 10. damping and tensioning springs; 11. a connecting shaft; 12. connecting the end block; 13. and (5) fixing blocks.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, an embodiment of the present invention is shown: a shock-absorbing belt pulley of a crankshaft of an automobile engine comprises a belt pulleyouter wheel 1, a belt pulleyinner wheel 5 is arranged at the position of an inner middle shaft of the belt pulleyouter wheel 1, twolinkage blocks 6 are fixedly connected to the side surface of the belt pulleyinner wheel 5, twofixing blocks 13 are fixedly connected to the inner wall of the belt pulleyouter wheel 1, alinkage spring 7 is arranged between eachfixing block 13 and eachlinkage block 6, two ends of eachlinkage spring 7 are respectively abutted to the adjacent side surfaces of thecorresponding fixing block 13 and thecorresponding linkage block 6, two shock-absorbingtension springs 10 are arranged inside the belt pulleyouter wheel 1 and respectively positioned at the positions of two sides of thecorresponding fixing block 13, the shock-absorbingtension springs 10 are positioned between the belt pulleyouter wheel 1 and the belt pulleyinner wheel 5, the shock-absorbingtension springs 10 are annular, thefixing blocks 13, thelinkage blocks 6 and thelinkage springs 7 can be utilized to drive the belt pulleyouter wheel 1 to rotate when the belt pulleyinner wheel 5 rotates, because the power of dragging of belt is received to belt pulleyforeign steamer 1, consequently take place the offset in pivoted in-process belt pulleyforeign steamer 1 can with thewheel 5 in the belt pulley, and then make the shock attenuation rise the partial section oftension spring 10 receive the extrusion, this belt pulley possesses certain position adjustment volume under the effect of shock attenuation risetension spring 10 this moment, and then can rotate the vibrations that produce when taking place to skid between in-process belt and the belt pulley to the belt pulley and carry out the shock attenuation operation, and the linear smoothness of whole shock attenuation effect.

Further, an organic whole is connected with twolimit connection blocks 8 on the inner wall of belt pulleyforeign steamer 1, and twolimit connection blocks 8 are located the both ends position department of 1 inside cavity of belt pulley foreign steamer respectively,limit connection block 8's the outside fixed mounting has limit retainingring 9 on the surface, limit retainingring 9's internal diameter size is less than the diameter size of 5 in the belt pulley, the axis position department an organic whole of 5 terminal surfaces in the belt pulley is connected with connectingaxle 11, connectingaxle 11's diameter size is less thanlimit retaining ring 9's internal diameter size, the one end fixed mounting of connectingaxle 11 has connectingend block 12, be provided with a plurality of belt grooves on the side surface of belt pulleyforeign steamer 1.

Further, aheat dissipation groove 2 is formed in one end face of the belt pulleyouter wheel 1, a plurality of heat dissipation throughholes 4 andflow deflectors 3 are arranged on the inner end face of theheat dissipation groove 2, and theflow deflectors 3 correspond to the heat dissipation throughholes 4 in position one to one.

The working principle is as follows: when the dampingtensioning spring 10 is used, the belt pulley is installed at one end of a crankshaft through the connectingend block 12, the rotation of the crankshaft drives theconnecting shaft 11 and theinner wheel 5 of the belt pulley to rotate, at the moment, theinner wheel 5 of the belt pulley is driven to rotate under the action of thefixing block 13, thelinkage block 6 and thelinkage spring 7, theouter wheel 1 of the belt pulley is driven to rotate, theouter wheel 1 of the belt pulley can deviate from theinner wheel 5 of the belt pulley in the rotating process due to the pulling force of the belt, so that partial sections of the damping tensioningspring 10 are extruded, the belt pulley has a certain position adjustment amount under the action of the damping tensioningspring 10, vibration generated when the belt and the belt pulley slip in the rotating process of the belt pulley can be damped, and the limiting connectingblock 8 and the limitingcheck ring 9 can limit thedamping tensioning spring 10 and theinner wheel 5 of the belt pulley, consequently can effectual assurance shock attenuation operation go on steadily, when belt pulleyforeign steamer 1 rotates, connect the inside that theguide vane 3 on the inside terminal surface of radiatinggroove 2 can be with the leading-in heat dissipation through-hole 4 of outside air, and then make this belt pulley can carry out effectual heat dissipation operation.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. The utility model provides an automobile engine bent axle shock attenuation belt pulley, includes belt pulley foreign steamer (1), its characterized in that: the utility model discloses a damping tensioning spring, including belt pulley outer wheel (1), the inside axis position department of belt pulley outer wheel (1) is provided with in the belt pulley (5), two linkage blocks (6) of fixedly connected with on the side surface of in the belt pulley (5), two fixed blocks (13) of fixedly connected with on the inner wall of belt pulley outer wheel (1), be provided with linkage spring (7) between fixed block (13) and linkage block (6), the both ends of linkage spring (7) are supported respectively on the adjacent side surface of fixed block (13) and linkage block (6), the inside of belt pulley outer wheel (1) is provided with two damping tensioning springs (10), and two damping tensioning springs (10) are located the both sides position department of fixed block (13) respectively, and damping tensioning spring (10) are located between belt pulley outer wheel (1) and belt pulley inner wheel (5).

2. The automotive engine crankshaft damping pulley according to claim 1, characterized in that: the damping tension spring (10) is in a circular ring shape.

3. The automotive engine crankshaft damping pulley according to claim 1, characterized in that: the pulley is gone up an organic whole and is connected with two limit connection blocks (8) on the inner wall of wheel (1) outside the belt pulley, and two limit connection block (8) are located the both ends position department of the inside cavity of wheel (1) outside the belt pulley respectively.

4. The automotive engine crankshaft damping pulley according to claim 3, characterized in that: the outer side surface of the limiting connecting block (8) is fixedly provided with a limiting check ring (9), and the inner diameter of the limiting check ring (9) is smaller than that of the inner wheel (5) of the belt pulley.

5. The automotive engine crankshaft damping pulley according to claim 4, characterized in that: the belt pulley is characterized in that a connecting shaft (11) is integrally connected to the middle shaft of one end face of the inner pulley wheel (5), the diameter of the connecting shaft (11) is smaller than the inner diameter of the limiting retainer ring (9), a connecting end block (12) is fixedly mounted at one end of the connecting shaft (11), and a plurality of belt grooves are formed in the side surface of the outer pulley wheel (1).

6. The automotive engine crankshaft damping pulley according to claim 1, characterized in that: be provided with radiating groove (2) on the terminal surface of belt pulley foreign steamer (1), be provided with a plurality of heat dissipation through-holes (4) and water conservancy diversion piece (3) on the inside terminal surface of radiating groove (2), and the position one-to-one of water conservancy diversion piece (3) and heat dissipation through-hole (4).

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