CN211258675U

CN211258675U - Let and press stock tray

Info

Publication number: CN211258675U
Application number: CN201922425949.7U
Authority: CN
Inventors: 闫明坡
Original assignee: Jize Saida Mining Accessories Manufacturing Co ltd
Current assignee: Jize Saida Mining Accessories Manufacturing Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-08-14
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses a let and press stock tray, have the bellied tray body of sphere including the center, the last spring board that is equipped with of tray body, the edge and the tray body laminating of spring board can slide relative tray body, and spring board and tray body center department open have the trompil that supplies the stock to pass, have between spring board and tray body and let and press the distance, have the elastic layer between spring board and tray body, are fixed with the guide post on the tray body, and open at the edge of spring board has the waist shape hole that corresponds with the guide post, and the guide post is located waist shape downthehole. The utility model discloses a spring board and high damping rubber have elasticity, and when the country rock release high stress, spring board and high damping rubber can absorb in a large number and dissipation act on the deformation impact energy on strutting the system, can effectively guide the release and the conversion of control energy, effectively resist deep country rock heavy deformation or impact the influence of heavy deformation, do not destroy the overall structure of stock, make the stock still have bearing capacity to realize the impact resistance.

Description

Let and press stock tray

Technical Field

The utility model relates to an equipment field is strutted in the industrial and mining industry, especially a let and press stock tray.

Background

In underground works is strutted, the degree of difficulty that the high stress country rock was strutted to the great deformation constantly increases, adopts traditional stock to initiatively strut, can only play the effect in the initial stage, and along with the country rock around the tunnel constantly to the inside extrusion in tunnel, the tunnel can produce great deformation. Ordinary stock does not have the performance of letting press, expands to a certain degree when the country rock, and the stock will suffer destruction, and stock anchor end inefficacy, the stock body of rod receive the pulling force too big and snap, and phenomenon ubiquitous such as stock tray deformation seriously loses effect for the stability in tunnel exists great potential safety hazard in dangerous.

Therefore, the support of the high-deformation high-stress surrounding rock is required to be supported by adopting the yielding idea. At present, part of anchor rods with yielding performance can realize deformation yielding to a certain extent, but the structural form and yielding mechanism are complex, the expected yielding effect cannot be realized, and the popularization to the production practice is not convenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem, a let and press stock tray has been designed.

Realize above-mentioned purpose the technical scheme of the utility model be, a let and press stock tray, there is the bellied tray body of sphere including the center, be equipped with the spring board on the tray body, the edge and the tray body laminating of spring board can slide relative tray body, spring board and tray body center department open have the trompil that supplies the stock to pass, it lets the pressure distance to have between spring board and tray body.

Preferably, the yielding distance is 1-5 cm.

Preferably, the tray further comprises an elastic layer, and the elastic layer is located between the spring plate and the tray body.

Preferably, the elastic layer is a high damping rubber.

Preferably, a guide post is fixed on the tray body, a waist-shaped hole corresponding to the guide post is formed in the edge of the spring plate, and the guide post is located in the waist-shaped hole.

Preferably, one end of the guide post, which faces away from the tray body, extends out of the waist-shaped hole and is fixed with the limiting block.

Preferably, the length direction of the waist-shaped hole is the same as the sliding direction of the spring plate along the tray body.

Preferably, the number of the guide posts is two, and the two guide posts are symmetrically distributed along the central line of the tray body.

The utility model has the advantages that: the spring plate and the high-damping rubber have elasticity, the spring plate can generate extensional deformation according to the stress size, the pressure yielding function is realized, when the surrounding rock releases high stress, the spring plate extrudes the high-damping rubber, the spring plate and the high-damping rubber can absorb and dissipate deformation impact energy acting on a supporting system in a large amount, the release and the conversion of control energy can be effectively guided, high energy is consumed in the deformation process of the spring plate and the high-damping rubber, the influence of large deformation or large impact deformation of the deep surrounding rock is effectively resisted, the integral structure of the anchor rod is not damaged, the anchor rod still has bearing capacity, and the impact resistance effect is realized.

Drawings

Fig. 1 is a schematic structural view of a yielding anchor rod tray of the present invention;

fig. 2 is a front view of a yielding anchor rod tray of the present invention;

fig. 3 is a top view of the yielding anchor rod tray of the present invention;

in the figure, 1, a tray body; 2. a spring plate; 3. an anchor rod; 4. opening a hole; 5. an elastic layer; 6. a guide post; 7. a waist-shaped hole; 8. a limiting block; 9. and a nut.

Detailed Description

The invention is described in detail below with reference to the accompanying drawings, as shown in fig. 1-3: the utility model provides a let and press stock tray, has spherical surface bellied tray body 1 including the center, is equipped with spring plate 2 on the tray body 1, and the edge of spring plate 2 and tray body 1 laminating and can slide relative tray body 1, and open in spring plate 2 and tray body 1 center department has the trompil 4 that supplies stock 3 to pass, has between spring plate 2 and tray body 1 and lets the pressure distance.

Preferably, in the embodiment, the yielding distance is 1-5 cm.

Preferably, in this embodiment, the tray further includes an elastic layer 5, and the elastic layer 5 is located between the spring plate 2 and the tray body 1.

Preferably, in the present embodiment, the elastic layer 5 is a high damping rubber.

Preferably, in this embodiment, a guide post 6 is fixed on the tray body 1, a waist-shaped hole 7 corresponding to the guide post 6 is formed on the edge of the spring plate 2, and the guide post 6 is located in the waist-shaped hole 7.

Through setting up guide post 6 and waist shape hole 7, play the positioning action to spring plate 2, waist shape hole 7 is under the guide action of guide post 6 for when using this device, spring plate 2 and tray body 1 keep integrative, and spring plate 2 can slide on tray body 1 during deformation.

Preferably, in the present embodiment, one end of the guiding column 6, which faces away from the tray body 1, protrudes out of the waist-shaped hole 7 and is fixed with the limiting block 8.

Through setting up stopper 8 for spring plate 2 keeps integrative with the dish body, avoids spring plate 2 to break away from tray body 1.

Preferably, in the present embodiment, the length direction of the waist-shaped hole 7 is the same as the sliding direction of the spring plate 2 along the tray body 1.

Preferably, in this embodiment, the number of the guiding columns 6 is two, and the two guiding columns are symmetrically distributed along the central line of the tray body 1.

By providing two guide posts 6, the spring plate 2 can be made to slide stably on the tray body 1.

The working principle of the embodiment is as follows: when the tray is used, the tray body 1 is tightly attached to a surrounding rock wall, the anchor rod 3 penetrates through the opening 4 of the spring plate 2, the high-damping rubber and the opening 4 of the tray body 1 and then is inserted into a drilled hole of the anchor rod 3, and the nut 9 presses the spring plate 2 through screwing, so that the anchor rod 3, the spring plate 2, the high-damping rubber and the tray body 1 are fastened together;

when the surrounding rock releases high stress, the spring plate 2 deforms, the high-damping rubber compresses, the anchor rod 3 is prevented from being broken and damaged due to impact dynamic load, a certain supporting force is provided, a certain deformation can be generated, and the spring plate 2 and the high-damping rubber can reset, so that continuous and sufficient supporting force can be provided, the anchor rod is adaptive to the impact load generated by the rock mass, the energy absorption and impact resistance effects of the anchor rod 3 can be effectively improved, and further, the surrounding rock is restrained or controlled from dynamic disasters such as rock burst and the like.

Above-mentioned technical scheme has only embodied the utility model discloses technical scheme's preferred technical scheme, some changes that this technical field's technical personnel probably made to some parts wherein have all embodied the utility model discloses a principle belongs to within the protection scope of the utility model.

Claims

1. The utility model provides a let and press stock tray, has bellied tray body (1) of sphere including the center, its characterized in that, be equipped with spring plate (2) on tray body (1), the edge and the tray body (1) laminating of spring plate (2) and tray body (1) can slide relative tray body (1), open trompil (4) that supply stock (3) to pass in spring plate (2) and tray body (1) center department, it lets pressure distance to have between spring plate (2) and tray body (1).

2. A crush-anchor tray according to claim 1, wherein the crush-distance is 1-5 cm.

3. The yield anchor tray of claim 1, further comprising an elastic layer (5), wherein the elastic layer (5) is located between the spring plate (2) and the tray body (1).

4. A yielding bolt tray according to claim 3, characterised in that the resilient layer (5) is of high damping rubber.

5. The yielding anchor rod tray as claimed in any one of claims 1 to 4, wherein a guide post (6) is fixed on the tray body (1), a waist-shaped hole (7) corresponding to the guide post (6) is formed in the edge of the spring plate (2), and the guide post (6) is located in the waist-shaped hole (7).

6. A yield bolt tray according to claim 5, characterized in that the end of the guide post (6) facing away from the tray body (1) extends out of the kidney-shaped hole (7) and is fixed with a stopper (8).

7. A yield bolt tray according to claim 5, characterized in that the length direction of the waist-shaped hole (7) is the same as the sliding direction of the spring plate (2) along the tray body (1).

8. A yield anchor tray according to claim 5, characterized in that the number of the guide posts (6) is two, and the two guide posts are symmetrically distributed along the center line of the tray body (1).