CN206802263U - A kind of worm gear axial direction slack adjuster - Google Patents
A kind of worm gear axial direction slack adjuster Download PDFInfo
- Publication number
- CN206802263U CN206802263U CN201720335059.5U CN201720335059U CN206802263U CN 206802263 U CN206802263 U CN 206802263U CN 201720335059 U CN201720335059 U CN 201720335059U CN 206802263 U CN206802263 U CN 206802263U
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- CN
- China
- Prior art keywords
- pad
- worm gear
- damper
- axial direction
- slack adjuster
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Abstract
The utility model discloses a kind of worm gear axial direction slack adjuster, including：Housing (1) and output shaft (7), the output shaft (7) inserts the housing (1), and pressure ring (6), ball bearing (4) and the worm gear (2) in the housing (1) are sequentially sleeved on the output shaft (7), space between the ball bearing (4) and the pressure ring (6) is provided with damper (5), described damper (5) one end contacts with the ball bearing (4), and the other end contacts with the pressure ring (6).The utility model sets damper between ball bearing and pressure ring, avoids that NVH problems occur.
Description
Technical field
Automobile correlative technology field is the utility model is related to, particularly a kind of worm gear axial direction slack adjuster.
Background technology
It is as shown in FIG. 1 to 3 existing worm gear axial direction slack adjuster, it includes housing 1' and output shaft 7',
Output shaft 7' inserts housing 1', and pressure ring 6', ball bearing 4' and the worm gear 2' in housing 1' are sequentially sleeved on output shaft, ball
Space between bearing 4' and pressure ring 6' sets wavy spring 5' to carry out damping, while the worm screw 3' in worm gear 2' and housing 1' connects
Connect.
The worm gear axial direction slack adjuster of prior art carries out damping using wavy spring 5', when mounted to waveform bullet
Spring 5' applies pretightning force and then the space being arranged between ball bearing 4' and pressure ring 6'.
However, when the external force for being applied to output shaft 7' is more than wavy spring 5' pretightning force, wavy spring 5' can be caused
Unclamp, space occur between ball bearing 4' and pressure ring 6', cause noise, vibration and sound vibration roughness (Noise, Vibrat ion,
Harshness, NVH) problem.
Utility model content
Based on this, it is necessary to NVH problems easily occur for existing worm gear axial direction slack adjuster, there is provided a kind of snail
Wheel shaft is to slack adjuster.
The utility model provides a kind of worm gear axial direction slack adjuster, including：Housing and output shaft, the output shaft
The housing is inserted, and pressure ring, ball bearing and the worm gear in the housing are sequentially sleeved on the output shaft, the ball axle
Hold the space between the pressure ring and be provided with damper, described damper one end contacts with the ball bearing, the other end with it is described
Pressure ring contacts.
Further, the damper includes body of rubber.
Further, the damper also includes the first pad and/or the second pad for being arranged on the body of rubber both ends
Piece, first pad contact with the ball bearing, and second pad contacts with the pressure ring.
Further, first pad and second pad are rigid gasket.
Further, first pad and second pad are steel plate washer.
Further, the body of rubber connects with first pad, second pad bonding.
Further, the damper is annular, and the damper is enclosed on the output shaft.
The utility model sets damper between ball bearing and pressure ring, avoids that NVH problems occur.
Brief description of the drawings
Fig. 1 is the structural representation of existing worm gear axial direction slack adjuster；
Fig. 2 is Fig. 1 region A enlarged diagram；
Fig. 3 is Fig. 1 B-B profiles；
Fig. 4 is a kind of structural representation of worm gear axial direction slack adjuster of the utility model；
Fig. 5 is Fig. 4 region C enlarged diagram.
Embodiment
The utility model is described in more detail with specific embodiment below in conjunction with the accompanying drawings.
A kind of structural representation of worm gear axial direction slack adjuster of the utility model is illustrated in figure 4, including：Housing 1
And output shaft 7, the output shaft 7 insert the housing 1, and pressure ring 6, ball bearing 4 and the worm gear 2 in the housing 1 according to
Secondary to be enclosed on the output shaft 7, the space between the ball bearing 4 and the pressure ring 6 is provided with damper 5, the damper 5 one
End contacts with the ball bearing 4, and the other end contacts with the pressure ring 6.
Specifically, because the space between ball bearing 4 and pressure ring 6 is provided with damper 5, therefore ought have on output shaft
During axial force, damper can deform upon, but not be unclamped because of the relation of pretightning force so that between ball bearing and pressure ring
Gap will not be produced because of axial force, avoid NVH problems.
The utility model sets damper between ball bearing and pressure ring, avoids that NVH problems occur.
As shown in figure 5, in one of the embodiments, the damper 5 includes body of rubber 52.
The present embodiment bears the axial force on output shaft 7 using body of rubber 52, simultaneously as rubber is preferably durable
Property, the service life of damper can be improved.
In one of the embodiments, the damper 5 also includes the first pad for being arranged on the both ends of body of rubber 52
The pad 53 of piece 51 and/or second, first pad 51 contact with the ball bearing 4, second pad 53 and the pressure ring 6
Contact.
The present embodiment sets the first pad 51 and/or the second pad 53 at body of rubber both ends, so as to reduce ball bearing 4 or
Abrasion of the person's pressure ring 6 to body of rubber 52, improve service life.
In one of the embodiments, first pad 51 and second pad 53 are rigid gasket.
The present embodiment uses rigid gasket, further improves the service life of damper.
In one of the embodiments, first pad 51 and second pad 53 are steel plate washer.
In one of the embodiments, the body of rubber 52 bonds with first pad 51, second pad 53
Connection.
Specifically, make when, can by adhesive by the first pad 51, body of rubber 52, the second pad 53 according to
Secondary bonding, can also use sulfurization technology, and the body of rubber 52 after vulcanization is injected into die cavity, with the by the processing of sandblasting gluing
Damper is cooled into after one pad 51, the bonding of the second pad 53.
In one of the embodiments, the damper 5 is annular, and the damper 5 is enclosed on the output shaft 7.
The damper 5 of the present embodiment is annular and is enclosed on the output shaft 7, complete between ball bearing and pressure ring so as to ensure
It is damped device 5 entirely to fill, further reduces and NVH problems occur.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed,
But therefore it can not be interpreted as the limitation to the utility model patent scope.It should be pointed out that for the common of this area
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (7)
- A kind of 1. worm gear axial direction slack adjuster, it is characterised in that including：Housing (1) and output shaft (7), the output Axle (7) inserts the housing (1), and pressure ring (6), ball bearing (4) and the worm gear (2) in the housing (1) are sequentially sleeved in institute State on output shaft (7), the space between the ball bearing (4) and the pressure ring (6) is provided with damper (5), the damper (5) One end contacts with the ball bearing (4), and the other end contacts with the pressure ring (6).
- 2. worm gear axial direction according to claim 1 slack adjuster, it is characterised in that the damper (5) includes rubber Glue main body (52).
- 3. worm gear axial direction according to claim 2 slack adjuster, it is characterised in that the damper (5) also includes Be arranged on first pad (51) and/or the second pad (53) at the body of rubber (52) both ends, first pad (51) with Ball bearing (4) contact, second pad (53) contact with the pressure ring (6).
- 4. worm gear axial direction according to claim 3 slack adjuster, it is characterised in that first pad (51) and institute It is rigid gasket to state the second pad (53).
- 5. worm gear axial direction according to claim 4 slack adjuster, it is characterised in that first pad (51) and institute It is steel plate washer to state the second pad (53).
- 6. worm gear axial direction according to claim 3 slack adjuster, it is characterised in that the body of rubber (52) and institute State the first pad (51), second pad (53) bonding connection.
- 7. the worm gear axial direction slack adjuster according to any one of claim 1~6, it is characterised in that the damper (5) it is annular, and the damper (5) is enclosed on the output shaft (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720335059.5U CN206802263U (en) | 2017-03-31 | 2017-03-31 | A kind of worm gear axial direction slack adjuster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720335059.5U CN206802263U (en) | 2017-03-31 | 2017-03-31 | A kind of worm gear axial direction slack adjuster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206802263U true CN206802263U (en) | 2017-12-26 |
Family
ID=60731554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720335059.5U Active CN206802263U (en) | 2017-03-31 | 2017-03-31 | A kind of worm gear axial direction slack adjuster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206802263U (en) |
-
2017
- 2017-03-31 CN CN201720335059.5U patent/CN206802263U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |