CN207133056U - Subframe fatigue test moment of flexure, torque cancellation element - Google Patents
Subframe fatigue test moment of flexure, torque cancellation element Download PDFInfo
- Publication number
- CN207133056U CN207133056U CN201721011412.0U CN201721011412U CN207133056U CN 207133056 U CN207133056 U CN 207133056U CN 201721011412 U CN201721011412 U CN 201721011412U CN 207133056 U CN207133056 U CN 207133056U
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- China
- Prior art keywords
- main shaft
- cancellation element
- flexure
- torque cancellation
- axle
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- Withdrawn - After Issue
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Abstract
The utility model aims to provide a kind of subframe fatigue test moment of flexure, torque cancellation element, including main shaft, arrangement for adjusting height, universal joint, power transmission shaft, torque cancellation element；Described main shaft is installed on arrangement for adjusting height, can vertically be moved up and down in the presence of arrangement for adjusting height；The both ends of described main shaft are divided into is provided with universal joint positioned at the both sides of arrangement for adjusting height, the front end of main shaft, and the rear end of main shaft is provided with workpiece connecting portion；Described torque cancellation element is connected by main shaft with universal joint, the torque cancellation element other end and transmission axis connection.The defects of device overcomes prior art, have and eliminate moment of flexure and torque, improve the characteristics of service life and measuring accuracy.
Description
Technical field
It the utility model is related to fatigue test device field, and in particular to a kind of subframe fatigue test moment of flexure, torque disappear
Except device.
Background technology
Subframe can regard the skeleton of tandem axle as, be the part of tandem axle.Subframe is not complete
Vehicle frame, simply support tandem axle, suspension and be connected again with " positive vehicle frame " by it, traditionally title " subframe ".The effect of subframe
It is barrier vibration noise, reduces it and be directly entered compartment；Subframe is more multiple as the important component on chassis, its force-bearing situation
It is miscellaneous, bear various load of different nature, including static(al), impact, alternate load.Therefore, to its intensity and Fatigue Strength Analysis
Check most important.In addition, in the prior art, when carrying out the fatigue strength experiment of subframe longitudinal direction, workpiece, sensor, start
Power transmission shaft between device (power source) needs strictly to be located along the same line, although existing adjusting means has reached more high-precision
Degree, but will realize that strict conllinear difficulty is big, cost is high, or even can not realize truly conllinear, and power transmission shaft can not
Strictly collinearly cause moment of flexure and torque occur between their power transmission shaft, even if moment of flexure or torque very little, but in fatigue strength
Under conditions of the intensity and experiment number of experiment, harm caused by moment of flexure is exaggerated for test etc., gently then damages power transmission shaft, heavy then damage
Bad sensor, while the service life and measuring accuracy of fatigue strength experimental provision are reduced, the efficiency of test is reduced, significantly
Add the cost of fatigue strength experiment.
The content of the invention
The utility model aims to provide a kind of subframe fatigue test moment of flexure, torque cancellation element, and the device overcomes existing
The defects of technology, have and eliminate moment of flexure and torque, improve the characteristics of service life and measuring accuracy.
The technical solution of the utility model is as follows：
A kind of subframe fatigue test moment of flexure, torque cancellation element, including main shaft, arrangement for adjusting height, universal joint, transmission
Axle, torque cancellation element；
Described main shaft is installed on arrangement for adjusting height, can vertically be done in the presence of arrangement for adjusting height
Elevating movement；
The both ends of described main shaft are divided into is provided with universal joint positioned at the both sides of arrangement for adjusting height, the front end of main shaft, main
The rear end of axle is provided with workpiece connecting portion；
Described torque cancellation element is connected by main shaft with universal joint, and the torque cancellation element other end connects with power transmission shaft
Connect.
Preferably, described torque cancellation element includes axle, sleeve, taper roll bearing, mounting flange；
Left blank with transmission axis connection, the other end described axle one end；Described axle is provided with prominent round platform, round platform both sides
A pair of taper roll bearings of formal dress, the inner ring of taper roll bearing is fixedly connected with axle；
Described sleeve is placed on outside axle, and the inwall of sleeve and the outer ring of taper roll bearing are interference fitted；Described set
Cylinder is connected with main shaft.
Preferably, described sleeve is provided with the boss of annular on the inwall close to one end of main shaft, described boss
Internal diameter is less than the external diameter of taper roll bearing, and the right flank of taper roll bearing is in contact with boss；Described mounting flange is set
In sleeve on one end of power transmission shaft, it is in contact with the left surface of taper roll bearing；Described boss and mounting flange is total to
The position limiting structure of the paired taper roll bearing of isomorphism.
Preferably, described axle is less than the part for corresponding to taper roll bearing on axle close to the section diameter of driven shaft.
Preferably, described arrangement for adjusting height includes base, support frame, motor, screw mandrel, guide pad, bearing, led
Rail, connector；
Described support frame is door type structure, and bottom is connected with base；Described motor drives at the top of support frame
The axle of dynamic motor is connected through support frame top with the screw mandrel in support frame top；Connector by screwed hole thereon with
Screw mandrel is connected, and described guide pad is connected with connector bottom；
Described guide rail is installed on support frame side wall, and described guide pad sidepiece is connected with guide rail, can be along above and below guide rail
Motion；Main shaft passes guide pad both sides, is connected by bearing with guide pad.
Preferably, the support base of triangle is included, described support base is connected with base and support frame respectively, to support
Frame is supported.
Preferably, described main shaft is installed on the inner ring of bearing by axle sleeve interference fit.
Preferably, described axle sleeve is graphite copper sheathing.
Preferably, in addition to graduated scale, described graduated scale are located on the side of support frame vertically.
The course of work of the present utility model is as follows：Moment of flexure, torque cancellation element are installed, workpiece connecting portion is connected with workpiece,
Power transmission shaft is connected with actuator, and regulation arrangement for adjusting height causes main shaft to be horizontal, and regulation actuator causes power transmission shaft
Same straight line is in as far as possible with main shaft；Fatigue test starts, and actuator drives power transmission shaft motion, and universal joint, main shaft linkage are made
For workpiece；Universal joint eliminates the moment of flexure of power transmission shaft and main shaft, and torque cancellation element eliminates the torque of power transmission shaft and main shaft, it is ensured that
That moves every time is steady, eliminates side force and twisting resistance.
The utility model is reduced using the combination of high-precision arrangement for adjusting height and universal joint by arrangement for adjusting height
The height tolerance of main shaft and power transmission shaft, moment of flexure caused by eliminating the faint deviation of main shaft and power transmission shaft by universal joint afterwards, disappears
Except the operating side force of fatigue test；Tested by torque cancellation element dispelling fatigue simultaneously during power transmission shaft and main shaft it
Between torque, improve the service life of main shaft, power transmission shaft and sensor, reduce testing cost；And due to moment of flexure and torque
Elimination, test result also can be more accurate；Also, axle is smaller close to the section diameter of driven shaft so that taper roll bearing
Installation is more convenient, avoids longer mounting distance, reduces installation difficulty.
Brief description of the drawings
Fig. 1 is subframe fatigue test moment of flexure provided by the utility model, the structural representation of torque cancellation element；
Fig. 2 is subframe fatigue test moment of flexure provided by the utility model, the arrangement for adjusting height knot of torque cancellation element
Structure schematic diagram；
Fig. 3 is subframe fatigue test moment of flexure provided by the utility model, the torque cancellation element of torque cancellation element
Structural representation；
Each several part title and sequence number are as follows in figure：
1 is main shaft, and 2 be universal joint, and 3 be power transmission shaft, and 4 be workpiece connecting portion, and 5 be axle, and 6 be sleeve, and 7 be taper roller axle
Hold, 8 be mounting flange, and 9 be round platform, and 10 be boss, and 11 be base, and 12 be support frame, and 13 be motor, and 14 be screw mandrel, 15
It is bearing for guide pad, 16,17 be guide rail, and 18 be connector, and 19 be support base, and 20 be graduated scale.
Embodiment
The utility model is illustrated with reference to the accompanying drawings and examples.
Embodiment 1
As Figure 1-3, the subframe fatigue test moment of flexure of the present embodiment offer, torque cancellation element, including main shaft 1,
Arrangement for adjusting height, universal joint 2, power transmission shaft 3, torque cancellation element；
Described main shaft 1 is installed on arrangement for adjusting height, can be in the presence of arrangement for adjusting height vertically
Move up and down；
The both ends of described main shaft 1 are divided into is provided with universal joint 2 positioned at the both sides of arrangement for adjusting height, the front end of main shaft 1,
The rear end of main shaft 1 is provided with workpiece connecting portion 4；
Described torque cancellation element is connected by main shaft 1 with universal joint 2, the torque cancellation element other end and power transmission shaft 3
Connection；
Described torque cancellation element includes axle 5, sleeve 6, taper roll bearing 7, mounting flange 8；
Described one end of axle 5 is connected with power transmission shaft 3, and the other end is left blank；Described axle 5 is provided with prominent round platform 9, round platform
9 a pair of taper roll bearings of both sides formal dress 7, the inner ring of taper roll bearing 7 are fixedly connected with axle 5；
Described sleeve 6 is placed on outside axle 5, and the inwall of sleeve 6 is interference fitted with the outer ring of taper roll bearing 7；It is described
Sleeve 6 be connected with main shaft 1；Described sleeve 6 is provided with the boss 10 of annular on the inwall close to one end of main shaft 1, described
The internal diameter of boss 10 be less than the external diameter of taper roll bearing 7, the right flank of taper roll bearing 7 is in contact with boss 10；Institute
The mounting flange 8 stated on one end of power transmission shaft 3, is in contact located at sleeve 6 with the left surface of taper roll bearing 7；It is described
Boss 10 and mounting flange 8 collectively form position limiting structure to taper roll bearing 7；
Described axle 5 is less than the part for corresponding to taper roll bearing 7 on axle 5 close to the section diameter of driven shaft 3；
Described arrangement for adjusting height includes base 11, support frame 12, motor 13, screw mandrel 14, guide pad 15, bearing
16th, guide rail 17, connector 18；
Described support frame 12 is door type structure, and bottom is connected with base 11；Described motor 13 is located at support frame
12 tops, the axle of motor 13 are connected through the top of support frame 12 with the screw mandrel 14 in the top of support frame 12；Connector
18 are connected by screwed hole thereon with screw mandrel 14, and described guide pad 15 is connected with the bottom of connector 18；
Described guide rail 17 is installed on the side wall of support frame 12, and the described sidepiece of guide pad 15 is connected with guide rail 17, Neng Gouyan
Guide rail 17 moves up and down；Main shaft 1 passes the both sides of guide pad 15, is connected by bearing 16 with guide pad 15；
Also include the support base 19 of triangle, described support base 19 is connected with base 11 and support frame 12 respectively, to branch
Support 12 is supported；
Described main shaft 1 is installed on the inner ring of bearing 16 by axle sleeve interference fit；Described axle sleeve is graphite copper sheathing；
Also include graduated scale 20, described graduated scale 20 is vertically on the side of support frame 12.
The course of work of the present embodiment is as follows：
Moment of flexure, torque cancellation element are installed, workpiece connecting portion 4 is connected with workpiece, and power transmission shaft 3 is connected with actuator, regulation
Arrangement for adjusting height causes main shaft 1 to be horizontal, and regulation actuator causes power transmission shaft 3 with main shaft 1 as far as possible in same
Straight line；Fatigue test starts, and actuator drives power transmission shaft 3 to move, and universal joint 2, the linkage of main shaft 1 act on workpiece；Universal joint 2
The moment of flexure of power transmission shaft and main shaft is eliminated, torque cancellation element eliminates the torque of power transmission shaft and main shaft, it is ensured that moves every time is steady,
Eliminate side force and twisting resistance.
Claims (9)
1. a kind of subframe fatigue test moment of flexure, torque cancellation element, including main shaft（1）, arrangement for adjusting height, universal joint（2）、
Power transmission shaft（3）, torque cancellation element；It is characterized in that：
Described main shaft（1）It is installed on arrangement for adjusting height, can be vertically done in the presence of arrangement for adjusting height
Elevating movement；
Described main shaft（1）Both ends be divided into positioned at the both sides of arrangement for adjusting height, main shaft（1）Front end be provided with universal joint
（2）, main shaft（1）Rear end be provided with workpiece connecting portion（4）；
Described torque cancellation element passes through main shaft（1）With universal joint（2）Connection, the torque cancellation element other end and power transmission shaft
（3）Connection.
2. subframe fatigue test moment of flexure as claimed in claim 1, torque cancellation element, it is characterised in that：
Described torque cancellation element includes axle（5）, sleeve（6）, taper roll bearing（7）, mounting flange（8）；
Described axle（5）One end and power transmission shaft（3）Connection, the other end are left blank；Described axle（5）It is provided with prominent round platform（9）,
Round platform（9）A pair of taper roll bearings of both sides formal dress（7）, taper roll bearing（7）Inner ring and axle（5）It is fixedly connected；
Described sleeve（6）It is placed on axle（5）Outside, sleeve（6）Inwall and taper roll bearing（7）Outer ring interference fit；
Described sleeve（6）With main shaft（1）Connection.
3. subframe fatigue test moment of flexure as claimed in claim 2, torque cancellation element, it is characterised in that：Described sleeve
（6）Close to main shaft（1）One end inwall be provided with annular boss（10）, described boss（10）Internal diameter be less than circular cone
Roller bearing（7）External diameter, taper roll bearing（7）Right flank and boss（10）It is in contact；Described mounting flange（8）If
In sleeve（6）Close to power transmission shaft（3）One end on, with taper roll bearing（7）Left surface be in contact；Described boss（10）
And mounting flange（8）Collectively form to taper roll bearing（7）Position limiting structure.
4. subframe fatigue test moment of flexure as claimed in claim 2, torque cancellation element, it is characterised in that：
Described axle（5）Close to driven shaft（3）Section diameter be less than axle（5）It is upper to correspond to taper roll bearing（7）Part.
5. subframe fatigue test moment of flexure as claimed in claim 1, torque cancellation element, it is characterised in that：
Described arrangement for adjusting height includes base（11）, support frame（12）, motor（13）, screw mandrel（14）, guide pad
（15）, bearing（16）, guide rail（17）, connector（18）；
Described support frame（12）For door type structure, bottom and base（11）Connection；Described motor（13）Located at support
Frame（12）Top, motor（13）Axle pass through support frame（12）Top is with being located at support frame（12）Screw mandrel in top（14）
Connection；Connector（18）Pass through screwed hole and screw mandrel thereon（14）Connection, described guide pad（15）With connector（18）Under
Portion connects；
Described guide rail（17）It is installed on support frame（12）Side wall, described guide pad（15）Sidepiece and guide rail（17）Connection, energy
Enough along guide rail（17）Move up and down；Main shaft（1）Pass guide pad（15）Both sides, pass through bearing（16）With guide pad（15）Connection.
6. subframe fatigue test moment of flexure as claimed in claim 5, torque cancellation element, it is characterised in that：Also include triangle
The support base of shape（19）, described support base（19）Respectively with base（11）And support frame（12）Connection, to support frame（12）Enter
Row support.
7. subframe fatigue test moment of flexure as claimed in claim 5, torque cancellation element, it is characterised in that：
Described main shaft（1）Bearing is installed on by axle sleeve interference fit（16）Inner ring on.
8. subframe fatigue test moment of flexure as claimed in claim 7, torque cancellation element, it is characterised in that：
Described axle sleeve is graphite copper sheathing.
9. the subframe fatigue test moment of flexure as described in claim 1-8 any one, torque cancellation element, it is characterised in that：
Also include graduated scale（20）, described graduated scale（20）It is located at support frame vertically（12）Side on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721011412.0U CN207133056U (en) | 2017-08-14 | 2017-08-14 | Subframe fatigue test moment of flexure, torque cancellation element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721011412.0U CN207133056U (en) | 2017-08-14 | 2017-08-14 | Subframe fatigue test moment of flexure, torque cancellation element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207133056U true CN207133056U (en) | 2018-03-23 |
Family
ID=61634865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721011412.0U Withdrawn - After Issue CN207133056U (en) | 2017-08-14 | 2017-08-14 | Subframe fatigue test moment of flexure, torque cancellation element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207133056U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107478442A (en) * | 2017-08-14 | 2017-12-15 | 广西科技大学 | Subframe fatigue test moment of flexure, torque cancellation element |
-
2017
- 2017-08-14 CN CN201721011412.0U patent/CN207133056U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107478442A (en) * | 2017-08-14 | 2017-12-15 | 广西科技大学 | Subframe fatigue test moment of flexure, torque cancellation element |
| CN107478442B (en) * | 2017-08-14 | 2019-05-10 | 广西科技大学 | Subframe fatigue test moment of flexure, torque cancellation element |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180323 Effective date of abandoning: 20190510 |
|
| AV01 | Patent right actively abandoned |