CN206945455U - A kind of single bolt fatigue test device under specific pretightning force - Google Patents
A kind of single bolt fatigue test device under specific pretightning force Download PDFInfo
- Publication number
- CN206945455U CN206945455U CN201720589810.4U CN201720589810U CN206945455U CN 206945455 U CN206945455 U CN 206945455U CN 201720589810 U CN201720589810 U CN 201720589810U CN 206945455 U CN206945455 U CN 206945455U
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- China
- Prior art keywords
- pretightning force
- bolt
- clamping module
- sample
- self
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Abstract
It the utility model is related to the single bolt fatigue test device under a kind of specific pretightning force, it is made up of upper self-clamping module, lower self-clamping module and sleeve, the fixation of bolt sample is realized by upper self-clamping module and lower self-clamping module, sleeve is enclosed on screw rod and tightened with nut, bolt is controlled to bear specific pretightning force by torque spanner, sample is flexibly connected with lower self-clamping module, it is possible to achieve automatic capturing.The replacing of the utility model part simple in construction, easily operated, each is easy to maintenance, cost is low, practical, realizes experiment on fatigue properties of the single bolt under certain pretightning force.
Description
Technical field：
The single bolt fatigue test device under a kind of specific pretightning force is the utility model is related to, is that one kind can realize spiral shell
The experimental rig of fatigue property test of the bolt under the effect of different pretightning forces.
Background technology：
Bolt is widely used in mechanical structure, and the bolt arrangement of cyclic loading is born in engineer applied, and fatigue rupture is
Its main damage form.For bolt sample, certain pretightning force is born in its course of work, examines bolt fatigue behaviour
Basic skills be that its curve of fatigue is determined by the method for experiment, establish stress amplitude and it be broken pass between circulating cycle time
System.Therefore, selection, service life and Strength co-mputation of the bolt fatigue behaviour tested under specific pretightning force effect to bolt arrangement
With very important value.Due to most of fatigue tests based on the standard specimen after processing, therefore it can not carry out specific
Bolt experiment on fatigue properties under pretightning force effect.
The content of the invention：
The utility model provides a kind of single bolt experiment on fatigue properties dress that can be realized under specific pretightning force effect
Put, meet the pretightning force requirement under bolt actual condition, realize fatigue of the single bolt in operating mode pretightning force environment
Performance test.
The technical solution of the utility model is：Single bolt fatigue test device under a kind of specific pretightning force, by upper folder
Hold module (7), lower self-clamping module (8) and sleeve pipe (6) composition, sleeve pipe (6) to be enclosed on screw rod sample, one end passes through thread spacer
(2) it is affixed with bolt head, the other end is affixed by pad (5) with nut, controls nut to bear sleeve pipe (6) by torque spanner
Specific pretightning force；The fixation of bolt sample, lower self-clamping module (8) are realized by upper self-clamping module (7) and lower self-clamping module (8)
It is flexibly connected with sample.
Described upper self-clamping module (7) is made up of upper fixture block (1) and thread spacer (2)；Thread spacer (2) passes through nut
Pretightning force is linked together with bolt sample, and upper fixture block (1) is connected with thread spacer (2) threadably.
Described lower self-clamping module (8) is made up of outer chuck (3), lower fixture block (4), pad (5)；Pad (5) passes through nut
Pretightning force linked together with bolt sample, the sleeve pipe (6) of stud overcoat passes through the aperture at outer chuck (3) center, outer chuck
(3) it is connected threadably with lower fixture block (4).
Technique effect
Bolt bears certain pretightning force in the course of the work, and examination and the basic skills for evaluating bolt fatigue behaviour are logical
The method of overtesting determines its curve of fatigue, establishes stress amplitude and it is broken relation between circulating cycle time.The utility model is real
La-drawing fatigue property test of single bolt entity under specific pretightning force effect is showed.Can be in fatigue test based on the device
The fatigue property test of the lower bolt entity of operating mode pretightning force effect is carried out on machine, is provided for the Life Design and Strength co-mputation of bolt
Significant data.Due to most of fatigue tests based on the standard specimen after processing, therefore specific pretightning force effect can not be carried out
Under bolt experiment on fatigue properties, therefore, the single bolt fatigue test device under this kind of specific pretightning force is to bolt arrangement
Selection, service life and Strength co-mputation have very important value.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of upper self-clamping module.
Fig. 3 is the structural representation of lower self-clamping module.
Fig. 4 is sleeve pipe and gasket construction schematic diagram.
Fig. 5 is Fig. 1 A direction views.
Embodiment
The present invention will be further described with reference to the accompanying drawings and detailed description:
As shown in fig. 1, the single bolt fatigue test device under a kind of specific pretightning force, the device include：Upper fixture block 1,
Thread spacer 2, outer chuck 3, lower fixture block 4, pad 5, sleeve pipe 6.
As shown in fig. 2, upper self-clamping module 7 is made up of upper fixture block 1 and thread spacer 2, and upper fixture block 1 is threadably
It is connected with thread spacer 2.
As shown in 3 figures, lower self-clamping module 8 is made up of outer chuck 3, lower fixture block 4, pad 5, and outer chuck 3 is with threaded connection
Mode is connected with lower fixture block 4.
As shown in 4 figures, sleeve pipe 6 is enclosed on screw rod sample, and one end is affixed by thread spacer 2 with bolt head, and the other end leads to
Cross pad 5 to be affixed with nut, control nut sleeve pipe 6 is born specific pretightning force by torque spanner.
As shown in 5 figures, thread spacer 2 is linked together by the pretightning force of nut with bolt sample, and upper fixture block 1 is with screw thread
The mode of connection is connected with thread spacer 2.Pad 5 is linked together by the pretightning force of nut with bolt sample, bolt coat
Sleeve pipe pass through the central small hole of outer chuck 3, outer chuck 3 is connected with lower fixture block 4 threadably.
Claims (3)
1. the single bolt fatigue test device under a kind of specific pretightning force, it is characterized in that：By upper self-clamping module (7), lower clamping
Module (8) and sleeve pipe (6) composition, sleeve pipe (6) are enclosed on screw rod sample, and one end is affixed by thread spacer (2) with bolt head, separately
One end is affixed by pad (5) with nut, controls nut sleeve pipe (6) is born specific pretightning force by torque spanner；Pass through
Upper self-clamping module (7) and lower self-clamping module (8) realize the fixation of bolt sample, and lower self-clamping module (8) is flexibly connected with sample.
2. the single bolt fatigue test device under a kind of specific pretightning force according to claim 1, it is characterized in that：Upper folder
Module (7) is held to be made up of upper fixture block (1) and thread spacer (2)；Thread spacer (2) is connected by the pretightning force of nut with bolt sample
It is connected together, upper fixture block (1) is connected with thread spacer (2) threadably.
3. the single bolt fatigue test device under a kind of specific pretightning force according to claim 1, it is characterized in that：Lower folder
Module (8) is held to be made up of outer chuck (3), lower fixture block (4), pad (5)；The pretightning force and bolt sample that pad (5) passes through nut
Link together, the sleeve pipe (6) of stud overcoat passes through the aperture at outer chuck (3) center, and outer chuck (3) is threadably
It is connected with lower fixture block (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720589810.4U CN206945455U (en) | 2017-05-24 | 2017-05-24 | A kind of single bolt fatigue test device under specific pretightning force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720589810.4U CN206945455U (en) | 2017-05-24 | 2017-05-24 | A kind of single bolt fatigue test device under specific pretightning force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206945455U true CN206945455U (en) | 2018-01-30 |
Family
ID=61362125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720589810.4U Expired - Fee Related CN206945455U (en) | 2017-05-24 | 2017-05-24 | A kind of single bolt fatigue test device under specific pretightning force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206945455U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110031333A (en) * | 2019-03-28 | 2019-07-19 | 福尼斯智能装备(珠海)有限公司 | A kind of workbench of automatic detection torsion |
| CN110873620A (en) * | 2019-12-26 | 2020-03-10 | 徐州建机工程机械有限公司 | Bolt pretightening force test and fatigue test device |
-
2017
- 2017-05-24 CN CN201720589810.4U patent/CN206945455U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110031333A (en) * | 2019-03-28 | 2019-07-19 | 福尼斯智能装备(珠海)有限公司 | A kind of workbench of automatic detection torsion |
| CN110031333B (en) * | 2019-03-28 | 2024-02-09 | 福尼斯智能装备(珠海)有限公司 | The method comprises the following steps of: automatic detection torsion work platform |
| CN110873620A (en) * | 2019-12-26 | 2020-03-10 | 徐州建机工程机械有限公司 | Bolt pretightening force test and fatigue test device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180130 |
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| CF01 | Termination of patent right due to non-payment of annual fee |