CN204402527U - A kind of anchor rod pallet board improving bolt pretension - Google Patents
A kind of anchor rod pallet board improving bolt pretension Download PDFInfo
- Publication number
- CN204402527U CN204402527U CN201520040884.3U CN201520040884U CN204402527U CN 204402527 U CN204402527 U CN 204402527U CN 201520040884 U CN201520040884 U CN 201520040884U CN 204402527 U CN204402527 U CN 204402527U
- Authority
- CN
- China
- Prior art keywords
- anchor
- anchor rod
- pallet board
- rod pallet
- nut
- Prior art date
- 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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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model discloses a kind of anchor rod pallet board improving bolt pretension.It comprises anchor rod pallet board body, the one side that described anchor rod pallet board body contacts with anchor nut is provided with the groove of annular, and be provided with annular rolling antifriction annex in groove, described annular rolling antifriction annex is an endless belt, endless belt evenly has multiple hole, and hole is embedded with ball.The utility model is provided with annular rolling antifriction annex, during fastening anchor pole, when turning anchor nut, nut is pressed on ball, and the torque axis that nut rotates turns to the pressure to ball, passes to anchor rod pallet board, under reaction force acts, anchor pole is able to tensioning, and pretightning force progressively improves.The utility model structure is simple, and easily use, cost is lower, has positive effect to improving bolt pretension.
Description
Technical field
The utility model relates to a kind of anchor rod pallet board improving bolt pretension.
Background technology
Bolt support is the main support form of one of mine laneway.In bolt support, for realizing the high strength of bolt support, high rigidity, high reliability and low-density, often to apply larger pretightning force to anchor pole, and with pallet and nut, it being fixed.
The conventional method that bolt pretension applies applies larger mounting torque to anchor nut.Due to the frictional force between anchor nut and anchor rod pallet board, cause the loss of mounting torque.For reducing this loss of machine of torque, between anchor nut and anchor rod pallet board, usually lay antifriction packing ring (pad).But still there is force of sliding friction between antifriction packing ring and anchor nut, between antifriction packing ring and anchor rod pallet board, therefore, the effect reducing loss of machine of torque is still limited.
Utility model content
In order to solve the problems of the technologies described above, the utility model provides a kind of anchor rod pallet board improving bolt pretension, reduce the loss of anchor nut mounting torque.
The technical scheme that the utility model solves the problems of the technologies described above is: comprise anchor rod pallet board body, the one side that described anchor rod pallet board body contacts with anchor nut is provided with the groove of annular, annular rolling antifriction annex is provided with in groove, described annular rolling antifriction annex is an endless belt, endless belt evenly has multiple hole, and hole is embedded with ball.
Technique effect of the present utility model is: the utility model is provided with annular rolling antifriction annex, during fastening anchor pole, when turning anchor nut, nut is pressed on ball, the torque axis that nut rotates turns to the pressure to ball, passes to anchor rod pallet board, under reaction force acts, anchor pole is able to tensioning, and pretightning force progressively improves.Owing to being Structure deformation between ball and anchor nut, between ball and the annular groove of anchor rod pallet board body, therefore greatly friction loss can be reduced.
The utility model structure is simple, and easily use, cost is lower, has positive effect to improving bolt pretension.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model when fixing for anchor pole;
Explanation in accompanying drawing: 1-anchor pole; 2-boring; 3-anchor rod pallet board; 4-anchor nut, 5-groove; 6-ball; 7-retainer; 8-pallet hole.
Detailed description of the invention
See Fig. 1,2, the utility model comprises anchor rod pallet board body 3, groove 5, ball 6, endless belt 7, pallet hole 8, the one side that described anchor rod pallet board body 3 contacts with anchor nut 4 is provided with the groove 5 of annular, annular rolling antifriction annex is provided with in groove 5, described annular rolling antifriction annex is an endless belt 7, endless belt evenly has multiple hole, and hole is embedded with ball 6.
As shown in Figure 2, when the utility model is fixed for anchor pole, anchor pole 1 inserts in boring 2, put anchor rod pallet board 3, fix with anchor nut 4 again, during fastening anchor pole 1, turn anchor nut 4, nut 4 is pressed on ball 6, the torque axis that nut 4 rotates turns to the pressure to ball 6, passes to anchor rod pallet board 3, under reaction force acts, anchor pole 1 is able to tensioning, and pretightning force progressively improves.Owing to being Structure deformation between ball 6 and anchor nut 4, between ball 6 and the annular groove of anchor rod pallet board body 6, therefore greatly friction loss can be reduced.
The utility model structure is simple, and easily use, cost is lower, has positive effect to improving bolt pretension.
Claims (1)
1. one kind can be improved the anchor rod pallet board of bolt pretension, comprise anchor rod pallet board body, it is characterized in that: the one side that described anchor rod pallet board body contacts with anchor nut is provided with the groove of annular, annular rolling antifriction annex is provided with in groove, described annular rolling antifriction annex is an endless belt, endless belt evenly has multiple hole, and hole is embedded with ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520040884.3U CN204402527U (en) | 2015-01-21 | 2015-01-21 | A kind of anchor rod pallet board improving bolt pretension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520040884.3U CN204402527U (en) | 2015-01-21 | 2015-01-21 | A kind of anchor rod pallet board improving bolt pretension |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204402527U true CN204402527U (en) | 2015-06-17 |
Family
ID=53426396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520040884.3U Expired - Fee Related CN204402527U (en) | 2015-01-21 | 2015-01-21 | A kind of anchor rod pallet board improving bolt pretension |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204402527U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564114A (en) * | 2015-01-21 | 2015-04-29 | 湖南科技大学 | Anchor bolt plate capable of improving anchor bolt preload |
-
2015
- 2015-01-21 CN CN201520040884.3U patent/CN204402527U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564114A (en) * | 2015-01-21 | 2015-04-29 | 湖南科技大学 | Anchor bolt plate capable of improving anchor bolt preload |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20180121 |