CN201902539U - Device capable of automatically eliminating spline meshing clearance and abnormal sound - Google Patents
Device capable of automatically eliminating spline meshing clearance and abnormal sound Download PDFInfo
- Publication number
- CN201902539U CN201902539U CN2010206854614U CN201020685461U CN201902539U CN 201902539 U CN201902539 U CN 201902539U CN 2010206854614 U CN2010206854614 U CN 2010206854614U CN 201020685461 U CN201020685461 U CN 201020685461U CN 201902539 U CN201902539 U CN 201902539U
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- Prior art keywords
- spline
- internal spline
- worm shaft
- shaft external
- abnormal sound
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Power Steering Mechanism (AREA)
- Gear Transmission (AREA)
Abstract
The utility model relates to a device capable of automatically eliminating spline meshing clearance and abnormal sound, which belongs to the manufacture technical field of electronic power steering gear accessories. The device comprises a worm assembly, a worm shaft external spline, an internal spline coupling sleeve and a motor; the worm shaft external spline is arranged at one end of a worm shaft of the worm assembly; the internal spline coupling sleeve is fixedly arranged on the motor; the worm shaft external spline is inserted into the internal spline coupling sleeve; a spline joint part is filled with high viscosity damping grease; one tooth of an internal spline of the internal spline coupling sleeve is eliminated. The internal spline joint part of the worm shaft external spline and the internal spline coupling sleeve is filled with the high viscosity damping grease which is mixed with abrasion resistant agent; the spline meshing clearance can be filled in automatically; the abrasion of the spline meshing part is effectively reduced so that the worm shaft external spline is more closely meshed with the high viscosity damping grease, the abnormal sound is eliminated, the normal and stable running of the motor is ensured. The device does not have high requirement on the processing precision of the spline and the processing cost is effectively reduced.
Description
Technical field:
The utility model relates to the device of a kind of automatic elimination spline engagement gap and abnormal sound, belongs to electric booster steering device accessory manufacturing technology field.
Background technique:
The motor of vehicle electric power-assisted steering device is to adopt spline to be connected with the total Chengdu of worm screw at present, and spline is the indispensable accessory of vehicle electric power-assisted steering device, and its frequency of utilization is high.But the problem of its existence at first is, spline is not easy processing, and because of the spline machining accuracy is not high, the gap that exists during engagement will produce abnormal sound when vehicle transmission, and particularly the impact noise that produces when automobile commutates fast is particularly serious.Secondly,, also can cause the connection part coaxality poor, quicken the spline wearing and tearing, and then have a strong impact on the service behaviour of motor because splined shaft and spline housing processing and assembling are will have error inevitably.Generally be now to adopt to improve the spline machining accuracy, gluingly connect fixing measure and remedy above-mentioned technological deficiency with rigid, just require the equipment precision height, increased processing cost but do like this at connection part; With rigid gluing connecing, still can cause the wearing and tearing of spline fitted position abnormal sound to occur because of the coaxality problem produces the transmission fluctuation, still can not thoroughly deal with problems.
Summary of the invention:
The purpose of this utility model is, provide a kind of minimizing high viscosity damping grease to put teeth, effectively solve problem, and assembling is simple because of spline fitted disalignment and fit up gap generation abnormal sound, need not to spline fine finishing the automatic elimination spline engagement gap that cuts down finished cost and the device of abnormal sound.
The utility model is to realize above-mentioned purpose by following technical solution:
The device of a kind of automatic elimination spline engagement gap and abnormal sound, it is made of worm screw assembly, worm shaft external splines, internal spline joint sleeve and motor, it is characterized in that: worm shaft one end of worm screw assembly is manufactured with the worm shaft external splines, be fixed with the internal spline joint sleeve on the axle head of motor, the worm shaft external splines of worm screw assembly inserts in the internal spline joint sleeve, the internal spline junction of worm shaft external splines and internal spline joint sleeve is filled with the high viscosity damping grease, the disallowable tooth of the internal spline of described internal spline joint sleeve.
The utility model beneficial effect compared with prior art is:
The device that should eliminate spline engagement gap and abnormal sound automatically adopts and is filled with the high viscosity damping grease that mixes anti-wear agent in the internal spline junction of worm shaft external splines and internal spline joint sleeve, when machine operation, the high viscosity damping grease that mixes anti-wear agent fills up the back lash of spline automatically, effectively reduces the wearing and tearing at spline engagement position; Adopt in addition the internal spline of internal spline joint sleeve is rejected a tooth, when being beneficial to worm shaft external splines insertion internal spline joint sleeve, can extrude the air in the internal spline joint sleeve, make more tight engagement of worm shaft external splines and high viscosity damping grease, eliminate abnormal sound, guarantee the normal smooth running of motor.The device that should eliminate spline engagement gap and abnormal sound automatically is not high to the spline requirement on machining accuracy, effectively reduces processing cost.
Description of drawings:
Accompanying drawing is the structural representation of the device of a kind of automatic elimination spline engagement gap and abnormal sound.
Among the figure: 1, worm screw assembly, 2, the worm shaft external splines, 3, the high viscosity damping grease, 4, the internal spline joint sleeve, 5, motor.
Embodiment:
The device that should eliminate spline engagement gap and abnormal sound automatically is made of worm screw assembly 1, worm shaft external splines 2, internal spline joint sleeve 4 and motor 5, worm shaft one end of worm screw assembly 1 is manufactured with worm shaft external splines 2, be fixed with internal spline joint sleeve 4 on the axle head of motor 5, the worm shaft external splines 2 of worm screw assembly 1 inserts in the internal spline joint sleeve 4, worm shaft external splines 2 is filled with high viscosity damping grease 3 with the internal spline junction of internal spline joint sleeve 4, mix anti-wear agent in the high viscosity damping grease 3, reduce the wearing and tearing at spline engagement position.The disallowable tooth of the internal spline of described internal spline joint sleeve 4 when being beneficial to worm shaft external splines insertion internal spline joint sleeve, can be extruded the air in the internal spline joint sleeve, makes more tight engagement of worm shaft external splines and high viscosity damping grease.
Should eliminate the device of spline engagement gap and abnormal sound automatically owing to be filled with high viscosity damping grease 3 in the internal spline junction of worm shaft external splines 2 and internal spline joint sleeve 4, generation subtracts towards damping function, and the high viscosity damping grease 3 that mixes anti-wear agent fills up the spline engagement gap automatically, effectively reduce the wearing and tearing at spline engagement position, eliminated impact noise, made worm screw assembly smooth rotation.In addition because of the disallowable tooth of the internal spline of internal spline joint sleeve 4, can extrude the air in the internal spline joint sleeve, make more tight engagement of worm shaft external splines and high viscosity damping grease, the impact noise and the abnormal sound that produce when eliminating commutation fast guarantee the normal smooth running of motor.
Claims (1)
1. device of automatically eliminating spline engagement gap and abnormal sound, it is by worm screw assembly (1), worm shaft external splines (2), internal spline joint sleeve (4) and motor (5) constitute, it is characterized in that: worm shaft one end of worm screw assembly (1) is manufactured with worm shaft external splines (2), be fixed with internal spline joint sleeve (4) on the axle head of motor (5), the worm shaft external splines (2) of worm screw assembly (1) inserts in the internal spline joint sleeve (4), worm shaft external splines (2) is filled with high viscosity damping grease (3), the disallowable tooth of the internal spline of described internal spline joint sleeve (4) with the internal spline junction of internal spline joint sleeve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206854614U CN201902539U (en) | 2010-12-23 | 2010-12-23 | Device capable of automatically eliminating spline meshing clearance and abnormal sound |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206854614U CN201902539U (en) | 2010-12-23 | 2010-12-23 | Device capable of automatically eliminating spline meshing clearance and abnormal sound |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201902539U true CN201902539U (en) | 2011-07-20 |
Family
ID=44273132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206854614U Expired - Fee Related CN201902539U (en) | 2010-12-23 | 2010-12-23 | Device capable of automatically eliminating spline meshing clearance and abnormal sound |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201902539U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105835681A (en) * | 2015-01-16 | 2016-08-10 | 重庆长安汽车股份有限公司 | Structure for improving idling knocking abnormal sound of ISG hybrid power car |
| CN105864301A (en) * | 2016-04-25 | 2016-08-17 | 刘镇江 | Spline connection structure and spline connection method thereof |
-
2010
- 2010-12-23 CN CN2010206854614U patent/CN201902539U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105835681A (en) * | 2015-01-16 | 2016-08-10 | 重庆长安汽车股份有限公司 | Structure for improving idling knocking abnormal sound of ISG hybrid power car |
| CN105864301A (en) * | 2016-04-25 | 2016-08-17 | 刘镇江 | Spline connection structure and spline connection method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110720 Termination date: 20171223 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |