A spherical cell trapezoidal deformation mine pressure controller and method

Abstract

The present invention provides a spherical cell trapezoidal deformation mine pressure controller and method, comprising: an upper porous sleeve, a bolt, a bayonet, a lower porous cylinder, a rigid bottom cover, a disc-type buffer surface, a disc buckle, and a spherical cell. The lower porous cylinder is a rigid cylinder with an "H"-shaped cross section, which is composed of a rigid skeleton and spherical cells. The disc-type buffer surface is connected to the lower porous steel cylinder as a whole through the disc buckle. A rigid bottom cover is threadedly connected to the bottom of the lower porous cylinder, and a bayonet and a bolt are installed on the outside of the lower porous cylinder to tighten it; an upper porous sleeve is placed on the rigid cylinder with an "H"-shaped cross section, and the upper porous sleeve is composed of a rigid skeleton and independent spherical cells, and a bayonet and a bolt are installed on the outside of the lower porous cylinder to tighten the sleeve and the cylinder. The present invention has high specific strength, good impact resistance, effectively reduces impact loads, and greatly absorbs energy, achieving the function of buffering and supporting mine tunnels.

Description

[Technical field]

[0001] The invention relates to the technical field of mine safety support, and in particular to a spherical cell trapezoidal deformation mine pressure controller and method. [Background technology]

[0002] In mining projects, shock waves generated by earthquakes, mine tremors, or fracture and settlement of hard roofs cause the surrounding rock mass in the goaf to break and the overall instability and damage of the support, causing the support bodies of the tunnels or working faces to instantly bear huge impact loads, resulting in a large number of support bodies being deformed, damaged, and collapsed, thus causing support equipment damage, casualties of workers, and other accidents. However, the problem of buffering and absorbing energy of lifting support equipment under high-speed impact loads has not been well solved, resulting in frequent impact ground pressure.

[0003] Most of the domestic mining supports and other equipment have small displacement, poor impact resistance, and problems such as untimely pressure relief after impact, which leads to sudden instability and damage of the support body.

[0004] The porous structure has superior characteristics such as high specific strength, high specific stiffness and high energy absorption capacity; and the disc-type buffer surface has a "layered dissipation" mechanism. The overall structure of the porous rigid material skeleton and the embedded three-layer disc-type buffer surface effectively reduces the impact load and greatly absorbs energy, avoiding safety accidents.

[0005] Therefore, it is necessary to study a spherical cell trapezoidal deformation mine pressure controller and method to address the deficiencies of the prior art and to solve or alleviate one or more of the above problems. [Summary of the invention]

[0006] In view of this, the present invention provides a spherical cell trapezoidal deformation mine pressure controller and method, which has high strength, good impact resistance, effectively reduces impact loads, and greatly absorbs energy, thereby achieving the effect of buffering and supporting mine tunnels.

[0007] On the one hand, the present invention provides a spherical cell trapezoidal deformation mine pressure controller, which includes: an upper porous sleeve, a lower porous cylinder and a plurality of disc-type buffer surfaces, wherein the lower porous cylinder is an H-shaped skeleton, and the H-shaped skeleton is provided with a first groove and a second groove, the upper porous sleeve is arranged in the first groove, and the plurality of disc-type buffer surfaces are arranged in the second groove.

[0008] According to the aspects described above and any possible implementation method, an implementation method is further provided, wherein each of the disc-shaped buffer surfaces includes a disc edge, a disc bottom and a disc buckle, one side of the disc edge is connected to the peripheral side of the disc bottom, and the other side is fixedly connected to the H-shaped frame at the second groove through the disc buckle.

[0009] According to the aspects described above and any possible implementation, an implementation is further provided, wherein the mine pressure controller also includes a first bolt and a first bayonet, wherein one end of the first bayonet is placed against the outside of the upper porous sleeve, and the other end passes through the H-shaped frame at the first groove and is connected to the first bolt.

[0010] According to the aspects described above and any possible implementation, an implementation is further provided, wherein the mine pressure controller also includes a rigid bottom cover, which is arranged at the opening of the second groove of the H-shaped skeleton, and the rigid bottom cover is connected to the inner wall of the lower porous cylinder through threads.

[0011] According to the aspects described above and any possible implementation, an implementation is further provided, wherein the mine pressure controller also includes a second bolt and a second bayonet, wherein one end of the second bayonet is placed against the outside of the rigid bottom cover, and the other end passes through the H-shaped frame at the second groove and is connected to the second bolt.

[0012] According to the above aspects and any possible implementation, there is further provided an implementation, wherein the outer diameter of the upper porous sleeve is equal to the inner diameter of the lower porous cylinder.

[0013] According to the above aspects and any possible implementation, there is further provided an implementation in which the cross section of the lower porous cylinder is "H" shaped.

[0014] According to the aspects described above and any possible implementation, an implementation is further provided, wherein the upper porous sleeve and the lower porous cylinder are both composed of a rigid skeleton and a plurality of spherical cells, and any two spherical cells are independently distributed and have regular morphologies.

[0015] According to the above aspects and any possible implementation, a method for controlling the ore pressure of a spherical cell with a trapezoidal deformation is further provided, the control method comprising the following steps:

[0016] S1: The upper porous sleeve is embedded in the "H"-shaped upper part of the lower porous cylinder, and the outer diameter and inner diameter fit perfectly to form a porous rigid material skeleton;

[0017] S2: The disc-type buffer surface is embedded in the "H"-shaped lower part of the lower porous cylinder, and is connected to the lower porous cylinder through a disc buckle to form a whole;

[0018] S3: The rigid bottom cover is placed at the bottom of the lower porous cylinder and connected by threads. The lower porous cylinder is equipped with bayonet pins and bolts at the top and bottom, and the controller is tightened;

[0019] S4: When the controller is under pressure, the porous rigid material skeleton bears the main load-bearing capacity and has a high yield strength; the internal cells are bent and deformed by external loads, and expand to absorb energy during the collapse process;

[0020] S5: The lower porous cylinder is deformed under pressure. Because the disc buckles connect the disc-shaped buffer surfaces and constrain each other, resistance is generated, and the disc-shaped surface itself is coordinated to deform and absorb the impact energy, absorbing and dissipating it layer by layer.

[0021] According to the aspects and any possible implementation methods described above, an implementation method is further provided.

[0022] Compared with the prior art, the present invention can achieve the following technical effects:

[0023] 1. The porous structure used in the present invention has superior characteristics such as high specific strength, high specific stiffness and high energy absorption capacity; the disc-type buffer surface has a "layered dissipation" mechanism;

[0024] 2. The overall structure of porous rigid material skeleton and embedded three-layer disc-type buffer surface effectively reduces the impact load and greatly absorbs energy to avoid safety accidents;

[0025] 3. The porous rigid material skeleton bears the main bearing capacity and has high yield strength. The internal pores are independently distributed and have regular morphology, which makes it difficult for local stress concentration to cause yield deformation and has high yield strength. It bends and deforms under external loads and expands to absorb energy during the collapse process.

[0026] 4. The three-layer disc-shaped buffer surface and the lower porous cylinder restrain each other and generate resistance. The disc-shaped surface coordinates its own deformation to absorb the impact energy, absorbing and dissipating it layer by layer.

[0027] Of course, any product implementing the present invention does not necessarily need to achieve all of the above-mentioned technical effects at the same time.

Brief Description of the Drawings

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 is a structural diagram of a mine pressure controller provided by an embodiment of the present invention;

[0030] Figure 2 It is a structural diagram of a disc-type buffer surface provided by an embodiment of the present invention.

[0031] Among them, in the figure: 1-upper porous sleeve, 2-bolt, 3-pin, 4-lower porous cylinder, 5-rigid bottom cover, 6-disc buffer surface, 62-disc edge, 61-disc bottom, 7-disc buckle, 8-spherical cell hole. [Specific implementation method]

[0032] In order to better understand the technical solution of the present invention, the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0033] It should be clear that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0035] The present invention provides Figure 1 As shown, a spherical cell trapezoidal deformation mine pressure controller comprises: an upper porous sleeve 1, a bolt 2, a bayonet 3, a lower porous cylinder 4, a rigid bottom cover 5, a disc-type buffer surface 6, a disc buckle 7, and a spherical cell 8.

[0036] Each of the disc-shaped buffer surfaces comprises a disc edge 62 , a disc bottom 61 and a disc buckle 7 . One side of the disc edge 62 is connected to the peripheral side of the disc bottom 61 , and the other side is fixedly connected to the H-shaped frame at the second groove through the disc buckle 7 .

[0037] The lower porous cylinder 4 is a rigid cylinder with an "H"-shaped cross-section, which is composed of a rigid frame and spherical cells 8, and the disc-type buffer surface 6 is connected to the lower porous steel cylinder layer by layer through disc buckles to form a connected whole; the rigid bottom cover 5 is threadedly connected to the inside of the lower porous cylinder, and a bayonet and a bolt are installed on the outside of the lower porous cylinder to tighten the bottom cover and the cylinder; the upper porous sleeve 1 is composed of a rigid frame and spherical cells 8, and is placed on the upper part of the lower porous cylinder 4 with an "H"-shaped cross-section, and a bayonet and a bolt are installed on the outside of the lower porous cylinder to tighten the sleeve and the cylinder.

[0038] The outer diameter of the upper porous sleeve 1 is equal to the inner diameter of the lower porous cylinder 4, and is embedded in the porous cylinder. The cross section of the lower porous cylinder 4 is "H" shaped. The upper porous sleeve 1 and the lower porous cylinder 4 are both composed of a rigid skeleton and spherical cells 8. The cells are independently distributed and have regular morphology. It is not easy to cause yield deformation due to local stress concentration, and the yield strength is high; under compression, the cells bend and deform, and compact and absorb energy.

[0039] like Figure 2 As shown, the disc-shaped buffer surface 6 and the lower porous cylinder 4 are connected by a disc buckle 7, which constrains and coordinates deformation. The disc-shaped surface deforms to absorb impact energy, absorbing it layer by layer and gradually dissipating it. The mining controller is an integral structure of a porous rigid material skeleton and an embedded three-layer disc-shaped buffer surface.

[0040] The present invention also provides a method for controlling the ore pressure of a spherical cell with a ladder-shaped deformation, the steps of which are as follows:

[0041] a. The upper porous sleeve 1 is embedded in the "H"-shaped upper part of the lower porous cylinder 4, and the outer diameter and the inner diameter are perfectly embedded to form a porous rigid material skeleton.

[0042] b. The three-layer disc-type buffer surface 6 is embedded in the "H"-shaped lower part of the lower porous cylinder 4 and connected thereto through the disc buckle 7 to form a whole.

[0043] c. The rigid bottom cover 5 is placed at the bottom of the lower porous cylinder 4 and is threadedly connected thereto; the lower porous cylinder 4 is provided with bayonet pins and bolts at the top and bottom, and the controller is used to tighten the clamp.

[0044] d. When the controller is under pressure, the porous rigid material skeleton bears the main bearing capacity and has a high yield strength; the internal cells are bent and deformed by external loads, and expand to absorb energy during the collapse process.

[0045] e. The lower porous cylinder is deformed under pressure. Because the disc-shaped buffer surfaces connected by the disc buckles are mutually constrained, resistance is generated, and the disc-shaped surfaces themselves are coordinated to deform to absorb the impact energy, absorbing and dissipating it layer by layer.

[0046] The above is a detailed introduction to a spherical cell trapezoidal deformation mine pressure controller and method provided in the embodiment of the present application. The description of the above embodiment is only used to help understand the method and its core idea of ​​the present application; at the same time, for those skilled in the art, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

[0047] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different nouns to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. As mentioned throughout the specification and claims, "including" and "comprising" are open-ended terms, so they should be interpreted as "including / including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect. The subsequent description of the specification is a preferred embodiment of the present application, but the description is for the purpose of illustrating the general principles of the present application, and is not used to limit the scope of the present application. The scope of protection of the present application shall be determined by the definition of the attached claims.

[0048] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such a product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0049] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0050] The above description shows and describes several preferred embodiments of the present application, but as mentioned above, it should be understood that the present application is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the application concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the present application, and should be within the scope of protection of the claims attached to the present application.

Claims

1. A spherical cell trapezoidal deformation mine pressure controller, characterized in that: The mine pressure controller comprises: an upper porous sleeve, a lower porous cylinder and a plurality of disc-shaped buffer surfaces, wherein the lower porous cylinder is a rigid cylinder with an H-shaped cross section, and a first groove and a second groove are provided on the rigid cylinder with an H-shaped cross section, the upper porous sleeve is arranged in the first groove, and the plurality of disc-shaped buffer surfaces are arranged in the second groove; Each of the disc-shaped buffer surfaces comprises a disc edge, a disc bottom and a disc buckle, one side of the disc edge is connected to the peripheral side of the disc bottom, and the other side is fixedly connected to the rigid cylinder with an H-shaped cross section at the second groove through the disc buckle; The mine pressure controller further comprises a first bolt and a first bayonet, wherein one end of the first bayonet is placed against the outside of the upper porous sleeve, and the other end passes through the rigid cylinder with an H-shaped cross section at the first groove and is connected to the first bolt; The mine pressure controller further comprises a rigid bottom cover, which is arranged at the opening of the rigid cylinder having an H-shaped cross section at the second groove, and the rigid bottom cover is connected to the inner wall of the lower porous cylinder by threads; The mine pressure controller further comprises a second bolt and a second bayonet, wherein one end of the second bayonet is placed against the outside of the rigid bottom cover, and the other end passes through the rigid cylinder with an H-shaped cross section at the second groove and is connected to the second bolt; The outer diameter of the upper porous sleeve is equal to the inner diameter of the lower porous cylinder; The upper porous sleeve and the lower porous cylinder are both composed of a rigid framework and a plurality of spherical cells, and any two spherical cells are independently distributed and have regular shapes.

2. A method for controlling the mine pressure of a spherical cell with a trapezoidal deformation, which is implemented by the mine pressure controller according to claim 1, characterized in that: The control method comprises the following steps: S1: The upper porous sleeve is embedded in the "H"-shaped upper part of the lower porous cylinder, and the outer diameter and inner diameter fit perfectly to form a porous rigid material skeleton; S2: The disc-type buffer surface is embedded in the "H"-shaped lower part of the lower porous cylinder, and is connected to the lower porous cylinder through a disc buckle to form a whole; S3: The rigid bottom cover is placed at the bottom of the lower porous cylinder and connected by threads. The lower porous cylinder is equipped with bayonet pins and bolts at the top and bottom, and the controller is tightened; S4: When the controller is under pressure, the porous rigid material skeleton bears the main load-bearing capacity and has a high yield strength; the internal cells are bent and deformed by external loads, and expand to absorb energy during the collapse process; S5: The lower porous cylinder is deformed under pressure. The disc-type buffer surfaces connected by the disc buckles are mutually constrained, generating resistance, and coordinating the deformation of the disc-type buffer surfaces themselves to absorb the impact energy, absorbing and dissipating it layer by layer.

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