CN206725218U - Automatic adjusting arm durable test device - Google Patents
Automatic adjusting arm durable test device Download PDFInfo
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- CN206725218U CN206725218U CN201720592284.7U CN201720592284U CN206725218U CN 206725218 U CN206725218 U CN 206725218U CN 201720592284 U CN201720592284 U CN 201720592284U CN 206725218 U CN206725218 U CN 206725218U
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- rotating shaft
- drive
- turbine
- test device
- automatic adjusting
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Abstract
Automotive field is the utility model is related to, specifically discloses a kind of automatic adjusting arm durable test device.The automatic adjusting arm durable test device includes turbine, worm screw, drive and rotating shaft, described turbine and worm engaging；Described driving wheel tube is located in rotating shaft and is fixedly connected with rotating shaft, and described rotating shaft passes through turbine, and by being driven between drive and turbine；Also include the torsion spring being set in rotating shaft, one end of the torsion spring is fixedly connected with drive, and the other end is connection end.Above-described automatic adjusting arm durable test device, the abrasion of brake rim is simulated using the unidirectional self-lock and precision drive of turbine and worm, is not only simple in structure, is easy to operate, and use cost is low, also with simulation precision it is high the advantages of.
Description
Technical field
It the utility model is related to automotive field, and in particular to a kind of automatic adjusting arm durable test device.
Background technology
Automatic adjusting arm is mainly used in air pressure cam drum type brake, and major function is after pad wear is braked, automatically
The gap set between compensation brake lining and brake drum.Automatic adjusting arm is after production is completed, it is necessary to according to CJT 242-
2007 standards and SAE J 1462-2011 standards dispatched from the factory before automatically adjust durable test.Currently used detection mode
It is that pneumatic wheel drum brake is formed by real brake rim and brake lining, then connects automatic adjusting arm and brake
Connect, carry out endurance quality test.Although this mode can simulate more real working environment, there is also following technology to ask
Topic：
1. if wear testing is carried out using real brake(-holder) block, because brake(-holder) block belongs to running stores, the cost of test
Height, cost-effectiveness requirement is not met.
2. testing staff carrys out the abrasion of simulating brake piece through the distance increase frequently with brake rim, although solving economy
The problem of, but the simulation precision of this analog form is poor, and effect is bad.
3. the volume of brake rim is larger, operation is complex, is not easy to the operation of staff, operating efficiency is low.
The content of the invention
The technical problems to be solved in the utility model is to provide a kind of automatic adjusting arm durable test device, utilizes turbine snail
The unidirectional self-lock of bar and precision drive simulate the abrasion of brake rim, are not only simple in structure, are easy to operate, and use cost
It is low, also with simulation precision it is high the advantages of.
In order to solve the above-mentioned technical problem, the technical scheme that the utility model is provided is as follows：A kind of automatic adjusting arm is durable
Test device, including turbine, worm screw, drive and rotating shaft, described turbine and worm engaging；Described driving wheel tube, which is located at, to be turned
It is fixedly connected on axle and with rotating shaft, described rotating shaft passes through turbine, and by being driven between drive and turbine；Also include
The torsion spring being set in rotating shaft, one end of the torsion spring are fixedly connected with drive, and the other end is connection end.
Described automatic adjusting arm durable test device includes turbine, worm screw, in turbine and worm transmission mechanism, when with whirlpool
When crop rotation is driving wheel, mechanism self-locking, using the self-locking effect of turbine and worm mechanism come the resistance in simulated automotive brake process
Square.Also include the torsion spring being set in rotating shaft, one end of the torsion spring is fixedly connected with drive, and the other end is company
Connect end；During test, automatic adjusting arm is set in rotating shaft and is connected with the connection end of torsion spring, when automatic adjusting arm around the shaft
During rotation, torsion spring produces elastic force, and indirectly drives drive to rotate, and elastic force caused by torsion spring is used to simulate drum
Remnant moment of the formula brake gear during actual brake.Appropriate rotary worm, you can simulate brake block makes for a long time
Wear extent after, due to the precision drive of turbine and worm structure, it can accurately simulate very much the wear extent of brake block.With
The existing method of testing using true drum brake is compared, and test device of the present utility model is simple in construction, small volume；And
Do not produce the active loss of brake block, on the premise of good economy performance, still can accurately simulate the wear extent of brake block.
Preferably, the bearing being arranged side by side with drive is additionally provided between described rotating shaft and turbine.Bearing is used for branch
Hold turbine and ensure the relative rotation between turbine and rotating shaft.
Preferably, it is interference fitted between described drive and rotating shaft.
Preferably, releasable connection has retainer ring on described turbine, the inner side of the retainer ring is provided with some projections, institute
State drive outer rim be provided with raised one-to-one transmission arm, pass through raised between described drive and retainer ring and pass
The contact of swing arm is driven；During original state, projection does not contact with transmission arm, in spacing simulation brake gear between the two
Normal clearance angle.
Brief description of the drawings
Fig. 1 is the sectional view of the present embodiment automatic adjusting arm durable test device；
Fig. 2 is the structural representation of the present embodiment automatic adjusting arm durable test device.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
The utility model, it is not used to limit the utility model.
Embodiment
As depicted in figs. 1 and 2, a kind of automatic adjusting arm durable test device, including turbine 3, worm screw 7, drive 6 and turn
Axle 1, described turbine 3 and worm screw 7 engage；In the transmission mechanism of 3 worm screw of turbine 7, when using turbine 3 as driving wheel, mechanism
Self-locking, using the self-locking effect of the mechanism of 3 worm screw of turbine 7 come the moment of resistance in simulated automotive brake process.6 sets of described drive
It is located in rotating shaft 1 and is interference fitted with rotating shaft 1, described rotating shaft 1 passes through turbine 3, and by entering between drive 6 and turbine 3
Row transmission；Also include the torsion spring 5 being set in rotating shaft 1, one end of the torsion spring 5 is fixedly connected with drive 6, separately
One end is connection end.During test, automatic adjusting arm is set in rotating shaft 1 and is connected with the connection end of torsion spring 5, is adjusted when automatic
During 1 rotation around the shaft of whole arm, torsion spring 5 produces elastic force, and indirectly driving drive 6 rotates, caused by torsion spring 5
Elastic force is used to simulate remnant moment of the drum type braking device during actual brake.Appropriate rotary worm 7, you can simulate brake
The wear extent of car piece after a long time use, due to the precision drive of the structure of 3 worm screw of turbine 7, can accurately it simulate very much
The wear extent of brake block.With it is existing using the method for testing of true drum brake compared with, test device knot of the present utility model
Structure is simple, small volume；And on the premise of the active loss for not producing brake block, good economy performance, still can accurately it simulate
Go out the wear extent of brake block.The bearing 2 being arranged side by side with drive 6 is additionally provided between described rotating shaft 1 and turbine 3.Bearing 2 is used
In supporting turbine 3 and ensure the relative rotation between turbine 3 and rotating shaft 1.
Further, releasable connection has retainer ring 4 on described turbine 3, and the inner side of the retainer ring 4 is provided with some projections
41, the outer rim of the drive 6 be provided with raised 41 one-to-one transmission arms 61, between described drive 6 and retainer ring 4
It is driven by raised 41 contacts with transmission arm 61；During original state, projection 41 does not contact with transmission arm 61, between the two
Spacing simulation brake gear in normal clearance angle.
Above-described automatic adjusting arm durable test device, using the unidirectional self-lock and precision drive of turbine and worm come mould
Intend the abrasion of brake rim, be not only simple in structure, be easy to operate, and use cost is low, also with simulation precision it is high the advantages of.
In a word, preferred embodiment of the present utility model is the foregoing is only, it is all not to limit the utility model
Made within spirit of the present utility model and principle all any modification, equivalent and improvement etc., should be included in this practicality
Within new protection domain.
Claims (4)
1. automatic adjusting arm durable test device, it is characterised in that：Including turbine（3）, worm screw（7）, drive（6）And rotating shaft
（1）, described turbine（3）And worm screw（7）Engagement；Described drive（6）It is set in rotating shaft（1）Upper and and rotating shaft（1）It is fixed
Connection, described rotating shaft（1）Through turbine（3）, and pass through drive（6）With turbine（3）Between be driven；Also include being arranged
In rotating shaft（1）On torsion spring（5）, the torsion spring（5）One end and drive（6）It is fixedly connected, the other end is company
Connect end.
2. automatic adjusting arm durable test device according to claim 1, it is characterised in that：Described rotating shaft（1）And whirlpool
Wheel（3）Between be additionally provided with and drive（6）The bearing being arranged side by side（2）.
3. automatic adjusting arm durable test device according to claim 2, it is characterised in that：Described drive（6）With
Rotating shaft（1）Between be interference fitted.
4. the automatic adjusting arm durable test device according to any one of claim 1-3, it is characterised in that：Described whirlpool
Wheel（3）Upper releasable connection has retainer ring（4）, the retainer ring（4）Inner side be provided with some projections（41）, the drive（6）
Outer rim be provided with and projection（41）One-to-one transmission arm（61）, described drive（6）With retainer ring（4）Between by convex
Rise（41）And transmission arm（61）Contact be driven.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720592284.7U CN206725218U (en) | 2017-05-25 | 2017-05-25 | Automatic adjusting arm durable test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720592284.7U CN206725218U (en) | 2017-05-25 | 2017-05-25 | Automatic adjusting arm durable test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206725218U true CN206725218U (en) | 2017-12-08 |
Family
ID=60511570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720592284.7U Active CN206725218U (en) | 2017-05-25 | 2017-05-25 | Automatic adjusting arm durable test device |
Country Status (1)
| Country | Link |
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| CN (1) | CN206725218U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107402121A (en) * | 2017-05-25 | 2017-11-28 | 浙江万安科技股份有限公司 | A kind of automatic adjusting arm durable test device |
-
2017
- 2017-05-25 CN CN201720592284.7U patent/CN206725218U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107402121A (en) * | 2017-05-25 | 2017-11-28 | 浙江万安科技股份有限公司 | A kind of automatic adjusting arm durable test device |
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