CN206233942U - Frictional spring pressure-relieving achor bar - Google Patents

Frictional spring pressure-relieving achor bar Download PDF

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Publication number
CN206233942U
CN206233942U CN201621335486.5U CN201621335486U CN206233942U CN 206233942 U CN206233942 U CN 206233942U CN 201621335486 U CN201621335486 U CN 201621335486U CN 206233942 U CN206233942 U CN 206233942U
Authority
CN
China
Prior art keywords
sleeve
anchor bar
pressure
block
bar
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
Application number
CN201621335486.5U
Other languages
Chinese (zh)
Inventor
赵文采
潘立进
徐金海
张咏斌
田新亮
郭翔宇
宋丽强
暴庆丰
刘鼎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China University of Mining and Technology CUMT
Shanxi Luan Environmental Energy Development Co Ltd
Original Assignee
China University of Mining and Technology CUMT
Shanxi Luan Environmental Energy Development Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China University of Mining and Technology CUMT, Shanxi Luan Environmental Energy Development Co Ltd filed Critical China University of Mining and Technology CUMT
Priority to CN201621335486.5U priority Critical patent/CN206233942U/en
Application granted granted Critical
Publication of CN206233942U publication Critical patent/CN206233942U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model is related to a kind of frictional spring pressure-relieving achor bar, particularly belongs to mine equipment field.Pressure device is allowed including friction, friction allow pressure device include anchor bar body, block, flexible member, sliding block and sleeve, one end of described anchor bar body is fixed and block is housed, suit has elastic component on anchor bar body, one end of flexible member fits with block, the other end of flexible member fits with the sliding block that can be moved axially on anchor bar body, anchor bar body between block and sliding block is set with sleeve, sleeve is near slider end and the ratcheting connection of anchor bar body, described friction allows press-fit and is equipped with two, friction described in two allows pressure device to be symmetrically connected to together by respective sleeve, the anchor bar body that one of friction allows on pressure device is also equipped with pallet in the one end away from sleeve, pallet is fixed with pre-load nut away from one end of sleeve.The utility model load is high, long service life.

Description

Frictional spring pressure-relieving achor bar
Technical field
The utility model is related to a kind of frictional spring pressure-relieving achor bar, particularly belongs to mine equipment field.
Background technology
With China's pit mining into deep, it is complexity, the appearance of high stress tunnel that roadway surrounding rock ambient stress heals Acid test is proposed safely to roadway support, soft stratum can be run into during tunnelling often, and it is also easy to produce big change Shape.During this kind of roadway support if can not in time by unnecessary energy ezpenditure totally, once it exceeds anchor pole bears pole Limit, it will cause the catastrophic failures such as roof fall, wall caving, have a strong impact on the safety in production of mine.
Utility model content
In place of in order to overcome the above-mentioned deficiencies of the prior art, the utility model provides a kind of frictional spring pressure-relieving achor bar.
The utility model is achieved by the following technical solution:A kind of frictional spring pressure-relieving achor bar, including friction allows Pressure device, friction allow pressure device include anchor bar body, block, flexible member, sliding block and sleeve, one end of described anchor bar body is fixed Equipped with block, also suit has elastic component on anchor bar body, and one end and the block of flexible member fit, the other end of flexible member Fitted with the sliding block that can be moved axially on anchor bar body, the anchor bar body between block and sliding block is set with sleeve, sleeve is being leaned on Nearly slider end and the ratcheting connection of anchor bar body, and sleeve is being equipped with catch with the ratcheting place of anchor bar body;Described friction allows press-fit and is equipped with Two, the friction described in two allows pressure device to be symmetrically connected to together by respective sleeve, and one of friction allows pressure device On anchor bar body be also equipped with pallet in the one end away from sleeve, pallet is fixed with pre-load nut away from one end of sleeve.
Further, described flexible member includes outer spring and inner spring.
Further, described anchor bar body is provided with screw thread in the part that suit has elastic component.
The beneficial effects of the utility model are:The utility model solves pressure-relieving achor bar using the box-like pressure-bearing of inside and outside groups of springs The low problem of load, the elastic potential energy gathered in flexible member at the end of being pressed in country rock can a certain degree of recovery allow pressure anchor The service life that rod state is substantially increased, while being loaded critical component set using sleeve, favourable protects each portion Part prevents from being damaged by outside, further increases the service life of pressure-relieving achor bar.
Brief description of the drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the partial enlarged drawing of the utility model sleeve and anchor bar body junction;
Fig. 3 is the utility model sleeve and the ratcheting schematic diagram in anchor bar body junction;
In figure, 1, anchor bar body, 2, pre-load nut, 3, pallet, 4, sleeve, 5, block, 6, outer spring, 7, inner spring, 8, sliding Block, 9, catch.
Specific embodiment
The utility model is further illustrated below according to drawings and Examples.
As shown in figure 1, a kind of frictional spring pressure-relieving achor bar, including friction allows pressure device, and friction allows the pressure device to include anchor The body of rod 1, block 5, flexible member, sliding block 8 and sleeve 4, one end of described anchor bar body 1 are fixed and block 5, block 5 and anchor are housed The body of rod 1 is threadedly coupled, and also suit has elastic component on anchor bar body 1, and one end and the block 5 of flexible member are fitted, and block 5 is played The effect of fixed flexible member, the other end of flexible member fits with the sliding block 8 that can be moved axially on anchor bar body 1, block 5 Sleeve 4 is set with the anchor bar body 1 between sliding block 8, sleeve 4 exists near the end of sliding block 8 and the ratcheting connection of anchor bar body 1, and sleeve 4 Catch 9 is housed with the ratcheting place of anchor bar body 1, prevents Anchor Agent from entering in sleeve 4, the part of the inside of protection sleeve 4;Described friction Allow press-fit and be equipped with two, the friction described in two allows pressure device to be symmetrically connected to together by respective sleeve 4, between sleeve 4 with Threaded connection, the anchor bar body 1 that one of friction allows on pressure device is also equipped with pallet 3, surrouding rock deformation in the one end away from sleeve 4 Load acts on pallet 3 afterwards, and anchor bar body is transferred loads to by pallet 3, increases the working resistance of anchor bar body 1, and then control is enclosed Rock deforms, and pallet 3 is fixed with pre-load nut 2 away from one end of sleeve 4, and moment of torsion is applied by pre-load nut 2, compresses pallet 3 and gives Anchor bar body 1 provides pretightning force, and spreads pretightning force, expands the sphere of action of anchor bar body 1;Pallet 3, pre-load nut 2 are installed The one end of anchor bar body 1 is the afterbody of frictional spring pressure-relieving achor bar.
Further, described flexible member includes outer spring 6 and inner spring 7, and described anchor bar body 1 is flexible in suit The part of element is provided with screw thread, and sliding block 8 is threadedly coupled with anchor bar body 1, and sliding block 8 can be in the case that country rock occurs large deformation There is the slip of constraint on anchor bar body 1, so that the inner spring 7 and outer spring 6 that compress between block 5 and sliding block 8 gather it Elastic potential energy, when inner spring 7 and the forced compression of outer spring 6 deform, rubs because number of turns difference occurs interaction between the two Wipe, increased the bearing capacity of pressure-relieving achor bar.
As shown in Figure 2 and Figure 3, sleeve 4 by the way of ratcheting with the ratcheting connection of anchor bar body 1, when country rock occur large deformation or When pressure is excessive, a power F on anchor pole is will act at, power F is decomposed into F as shown in Figure 31、F2, it can be seen that in F1In the presence of, Due to spring compressible deformation, A will be moved in sleeve, in F2In the presence of B will be moved along A, it is achieved thereby that anchor pole exists Resistant turnover in sleeve.
The utility model solves the problems, such as that pressure-relieving achor bar load is low using the box-like pressure-bearing of inside and outside groups of springs, while using Sleeve loads critical component set, and the favourable all parts that protect prevent from being damaged by outside, improve pressure-relieving achor bar Service life.

Claims (3)

1. a kind of frictional spring pressure-relieving achor bar, it is characterised in that:Pressure device is allowed including friction, friction allows the pressure device to include anchor pole Body(1), block(5), flexible member, sliding block(8)And sleeve(4), described anchor bar body(1)One end fix be equipped with block(5), Anchor bar body(1)On also suit have elastic component, one end of flexible member and block(5)Fit, the other end of flexible member with Can be in anchor bar body(1)The sliding block of upper axial movement(8)Fit, block(5)With sliding block(8)Between anchor bar body(1)It is set with Sleeve(4), sleeve(4)Near sliding block(8)End and anchor bar body(1)Ratcheting connection, and sleeve(4)With anchor bar body(1)It is ratcheting Place is equipped with catch(9);Described friction allows press-fit and is equipped with two, and the friction described in two allows pressure device to pass through respective sleeve (4)It is symmetrically connected to together, the anchor bar body that one of friction allows on pressure device(1)Away from sleeve(4)One end be also equipped with Pallet(3), pallet(3)Away from sleeve(4)One end be fixed with pre-load nut(2).
2. frictional spring pressure-relieving achor bar according to claim 1, it is characterised in that:Described flexible member includes outer bullet Spring(6)And inner spring(7).
3. frictional spring pressure-relieving achor bar according to claim 1, it is characterised in that:Described anchor bar body(1)In suit The part having elastic component is provided with screw thread.
CN201621335486.5U 2016-12-07 2016-12-07 Frictional spring pressure-relieving achor bar Expired - Fee Related CN206233942U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621335486.5U CN206233942U (en) 2016-12-07 2016-12-07 Frictional spring pressure-relieving achor bar

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621335486.5U CN206233942U (en) 2016-12-07 2016-12-07 Frictional spring pressure-relieving achor bar

Publications (1)

Publication Number Publication Date
CN206233942U true CN206233942U (en) 2017-06-09

Family

ID=58979383

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621335486.5U Expired - Fee Related CN206233942U (en) 2016-12-07 2016-12-07 Frictional spring pressure-relieving achor bar

Country Status (1)

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CN (1) CN206233942U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110258597A (en) * 2019-07-15 2019-09-20 中南大学 A method of it consumes energy for rock bolt shank damping
CN110629752A (en) * 2019-08-29 2019-12-31 江苏科技大学 Deformation compensation anchor rod and using method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110258597A (en) * 2019-07-15 2019-09-20 中南大学 A method of it consumes energy for rock bolt shank damping
CN110629752A (en) * 2019-08-29 2019-12-31 江苏科技大学 Deformation compensation anchor rod and using method thereof

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GR01 Patent grant
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: 20170609

Termination date: 20171207