CN213451549U

CN213451549U - Take damping dish structure tensioning wheel bearing in right time

Info

Publication number: CN213451549U
Application number: CN202021835725.XU
Authority: CN
Inventors: 韦邦圣
Original assignee: Hangzhou Radical Energy-Saving Technology Co ltd
Current assignee: Hangzhou Radical Energy-Saving Technology Co ltd
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2021-06-15
Anticipated expiration: 2030-08-28

Abstract

The utility model relates to a take damping dish structure tensioning wheel bearing in right time belongs to car bearing unit technical field, including the dabber, the spindle on be equipped with the outer lane that cup joints mutually with the dabber, outer lane and dabber between be equipped with the inner circle, outer lane and inner circle between be equipped with the holder, the holder in be equipped with a plurality of bearing steel balls that cup joint with the holder looks inlay card formula, inner circle and dabber between be equipped with eccentric seat, eccentric seat in be equipped with the nested damping pad ring of dabber mutually, the dabber in be equipped with the damping steel ball that touches the joint with damping pad ring is movable mutually. The device has the characteristics of compact structure, high structural strength, good operation stability and long service life. The structural design of the damping disc with viscosity is increased, the vibration of the timing tension wheel in the using process is improved, and the noise is reduced.

Description

Take damping dish structure tensioning wheel bearing in right time

Technical Field

The utility model relates to a car bearing unit technical field, concretely relates to take damping dish structure tensioning wheel bearing in right time.

Background

The automobile timing automatic tensioning wheel bearing is mainly used in an engine timing belt system. The timing belt is opened and closed, the upper part of the timing belt is connected with a camshaft timing wheel of the engine, and the lower part of the timing belt is connected with a crankshaft timing wheel and is an important transmission part in the automobile engine. In the working process of the automobile engine, four processes of air intake, compression, explosion and exhaust are continuously and repeatedly generated in a cylinder, so the rotating speed of a crankshaft of the engine is nonlinear, and a belt connecting the crankshaft timing wheel and the camshaft timing wheel correspondingly presents periodic 'tensioning' and 'loosening' processes.

Meanwhile, along with the increase of the service time of the engine, the internal temperature of the engine is gradually increased to the rated temperature, and at the moment, the belt made of rubber has the thermal expansion phenomenon. The purpose of installing the automatic tensioning wheel is to provide proper pre-tensioning tension for the timing system to ensure the normal operation of the system, and can compensate the tension reduction caused by the elongation of the belt in real time. The take-up pulley is too big, and drive arrangement easily produces the noise and the belt life-span shortens, and the take-up pulley undersize, the belt easily vibrates and produces the noise to the belt easily corrugates, damages, makes the life-span shorten.

The fixed tension pulley adopted at present can not automatically adjust the tension of the belt due to the change of the length of the belt or the change of the temperature of an engine, and the tension is unstable. The friction type automatic tensioner with a torsion spring also does not have stable damper performance and cannot fully ensure an optimum tension.

Disclosure of Invention

The utility model discloses there is structural strength low, the poor and short not enough of life of operational stability among the main prior art of solving, provides a take damping disc structure tensioning wheel bearing in right time, and it has compact structure, structural strength is high, operational stability is good and long service life's characteristics. The structural design of the damping disc with viscosity is increased, the vibration of the timing tension wheel in the using process is improved, and the noise is reduced.

The above technical problem of the present invention can be solved by the following technical solutions:

the utility model provides a take damping dish structure take-up pulley bearing in right time, includes the dabber, the dabber on be equipped with the outer lane that cup joints mutually with the dabber, outer lane and dabber between be equipped with the inner circle, outer lane and inner circle between be equipped with the holder, the holder in be equipped with a plurality of bearing steel balls that cup joint mutually with the holder, inner circle and dabber between be equipped with eccentric seat, eccentric seat in be equipped with the nested damping pad ring of dabber, the dabber in be equipped with the damping steel ball that contacts mutually with damping pad ring is movable.

Preferably, a plurality of damping base plates II are arranged between the damping cushion block ring and the mandrel, a damping base plate I which is sleeved with the mandrel is arranged between two adjacent damping base plates II, a damping base plate III which is sleeved with the damping base plate I is arranged between the damping base plate I and the eccentric seat, and a gasket which is connected with the mandrel in an embedded mode is arranged at the rear end of the damping base plate I.

Preferably, a shaft sleeve is arranged between the front end of the eccentric seat and the mandrel, and the cross section of the shaft sleeve is of an L-shaped structure.

Preferably, multi-lip skeleton sealing rings are arranged between the shaft sleeve and the damping cushion block ring and between the rear end of the eccentric seat and the mandrel.

Preferably, the outer wall of the rear end of the eccentric seat is provided with a bracket which is fixedly connected with the eccentric seat in a nested manner, and the cross section of the bracket is of an L-shaped structure.

Preferably, the two ends of the retainer are provided with oil seal sealing rings which are embedded, connected and fixed with the outer ring and the inner ring.

The utility model discloses can reach following effect:

the utility model provides a take damping disc structure take-up pulley bearing in right time compares with prior art, has compact structure, structural strength height, operating stability good and long service life's characteristics. The structural design of the damping disc with viscosity is increased, the vibration of the timing tension wheel in the using process is improved, and the noise is reduced.

Drawings

Fig. 1 is a structural sectional view of the present invention.

Fig. 2 is a front view structure diagram of the present invention.

Fig. 3 is a schematic rear view of the present invention.

In the figure: the damping device comprises an outer ring 1, an oil seal sealing ring 2, bearing steel balls 3, a retainer 4, an eccentric seat 5, a support 6, a gasket 7, a multi-lip framework sealing ring 8, a mandrel 9, a damping base plate I10, a damping base plate II 11, a damping base plate III 12, a damping base plate ring 13, a shaft sleeve 14, an inner ring 15 and damping steel balls 16.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Example (b): as shown in fig. 1, 2 and 3, a timing tension pulley bearing with a damping disc structure comprises a mandrel 9, an outer ring 1 sleeved with the mandrel 9 is arranged on the mandrel 9, an inner ring 15 is arranged between the outer ring 1 and the mandrel 9, a retainer 4 is arranged between the outer ring 1 and the

inner ring

15, 11 bearing steel balls 3 sleeved with the retainer 4 in a clamping manner are arranged in the retainer 4, and oil seal rings 2 fixedly connected with the outer ring 1 and the inner ring 15 in a sleeved manner are arranged at two ends of the retainer 4. An eccentric seat 5 is arranged between the inner ring 15 and the mandrel 9, a bracket 6 which is fixedly connected with the eccentric seat 5 in an embedded manner is arranged on the outer wall of the rear end of the eccentric seat 5, and the cross section of the bracket 6 is of an L-shaped structure. A shaft sleeve 14 is arranged between the front end of the eccentric seat 5 and the mandrel 9, and the cross section of the shaft sleeve 14 is of an L-shaped structure. Multi-lip skeleton sealing rings 8 are arranged between the shaft sleeve 14 and the damping cushion ring 13 and between the rear end of the eccentric seat 5 and the mandrel 9. A damping cushion ring 13 nested with the mandrel 9 is arranged in the eccentric seat 5, and a damping steel ball 16 movably contacted with the damping cushion ring 13 is arranged in the mandrel 9. Be equipped with 4 damping backing plates II 11 between damping backing plate ring 13 and dabber 9, all be equipped with damping backing plate I10 that cup joints mutually with dabber 9 between two adjacent damping backing plates II 11, all be equipped with damping backing plate III 12 that cup joints mutually with damping backing plate I10 between damping backing plate I10 and eccentric seat 5, damping backing plate I10 rear end is equipped with the packing ring 7 with dabber 9 looks nested connection.

In conclusion, the timing tensioning wheel bearing with the damping disc structure has the characteristics of compact structure, high structural strength, good operation stability and long service life. The structural design of the damping disc with viscosity is increased, the vibration of the timing tension wheel in the using process is improved, and the noise is reduced.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without deviating from the basic characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention 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.

In conclusion, the above description is only the specific embodiment of the present invention, but the structural features of the present invention are not limited thereto, and any person skilled in the art can make changes or modifications within the scope of the present invention.

Claims

1. The utility model provides a take damping dish structure tensioning wheel bearing in right time which characterized in that: including dabber (9), dabber (9) on be equipped with outer lane (1) that cup joints mutually with dabber (9), outer lane (1) and dabber (9) between be equipped with inner circle (15), outer lane (1) and inner circle (15) between be equipped with holder (4), holder (4) in be equipped with a plurality of bearing steel balls (3) that cup joint with holder (4) embedded mutually, inner circle (15) and dabber (9) between be equipped with eccentric seat (5), eccentric seat (5) in be equipped with damping pad ring (13) nested mutually with dabber (9), dabber (9) in be equipped with damping steel ball (16) that movably touch and connect mutually with damping pad ring (13).

2. The timing tensioner bearing with damping disc structure as claimed in claim 1, wherein: damping cushion ring (13) and dabber (9) between be equipped with a plurality of damping backing plates II (11), all be equipped with damping backing plate I (10) that cup joint mutually with dabber (9) between two adjacent damping backing plates II (11), damping backing plate I (10) and eccentric seat (5) between all be equipped with damping backing plate III (12) that cup joint mutually with damping backing plate I (10), damping backing plate I (10) rear end be equipped with packing ring (7) with dabber (9) looks nested connection.

3. The timing tensioner bearing with damping disc structure as claimed in claim 1, wherein: a shaft sleeve (14) is arranged between the front end of the eccentric seat (5) and the mandrel (9), and the cross section of the shaft sleeve (14) is of an L-shaped structure.

4. The timing tensioner bearing with damping disc structure as claimed in claim 3, wherein: and multi-lip skeleton sealing rings (8) are arranged between the shaft sleeve (14) and the damping cushion ring (13) and between the rear end of the eccentric seat (5) and the mandrel (9).

5. The timing tensioner bearing with damping disc structure as claimed in claim 1, wherein: the outer wall of the rear end of the eccentric seat (5) is provided with a bracket (6) which is fixedly connected with the eccentric seat (5) in an embedded manner, and the cross section of the bracket (6) is of an L-shaped structure.

6. The timing tensioner bearing with damping disc structure as claimed in claim 1, wherein: and oil seal sealing rings (2) which are fixedly connected with the outer ring (1) and the inner ring (15) in an embedded manner are arranged at two ends of the retainer (4).