CN113530579A

CN113530579A - Hydraulic support stand is with buffering energy-absorbing mechanism convenient to replacement

Info

Publication number: CN113530579A
Application number: CN202110982532.XA
Authority: CN
Inventors: 李井西; 李建忠; 钱洋喜; 王朝昀; 孙如钢
Original assignee: Chinacoal Beijing Coal Mining Machinery Co Ltd
Current assignee: Chinacoal Beijing Coal Mining Machinery Co Ltd
Priority date: 2021-08-25
Filing date: 2021-08-25
Publication date: 2021-10-22

Abstract

The invention discloses a buffer energy-absorbing mechanism convenient for replacement for a hydraulic support upright post, which comprises a buffer energy-absorbing mechanism and a main body part; the buffering energy absorption mechanism comprises a cylinder body and a gland, and the lower end of the main body part is inserted into the cylinder body and is fixedly connected with the gland; the cylinder body is internally provided with a buffer body, the gland bush is arranged on the excircle of the buffer body, and the excircle of the buffer body is not connected with the cylinder body. The excircle of buffer is equipped with the shearing groove. The cylinder body comprises a cylinder bottom and a cylinder pipe. A guide ring and a guide sleeve are arranged between the lower end of the main body part and the upper opening of the cylinder tube. The parts to be damaged are designed independently and are not fixedly connected with other parts, so that the parts are convenient to disassemble and replace.

Description

Hydraulic support stand is with buffering energy-absorbing mechanism convenient to replacement

Technical Field

The invention relates to a hydraulic support stand column, in particular to a buffer energy absorption mechanism convenient to replace for the hydraulic support stand column.

Background

Due to the harsh geological conditions in the individual regions, there is often a shock pressure present. The common upright post for the hydraulic support can bear certain mine pressure impact, but the common upright post is difficult to normally use in areas with large mine pressure. At present, research on the buffering and energy-absorbing upright columns is started in China, wherein the technical cost is high and the production difficulty is high; or the energy absorption device only has a disposable buffering energy absorption function, and the replacement cost in the later period is high or even the energy absorption device cannot be replaced.

At present, the commonly used shear groove type energy absorption buffering upright post for the hydraulic support is as shown in fig. 1, although the energy absorption buffering upright post can be played in the using process, when the mine pressure impact is serious, the upright post is protected, but the energy absorption buffering structure is disposable, and after the spiral groove of the inner wall of the cylinder pipe 2 is sheared and broken by the upright post gland 3, the gland of the upright post can be clamped with the inner wall of the cylinder pipe, so that the upright post cannot be disassembled.

In view of the above, the present invention is particularly proposed.

Disclosure of Invention

The invention aims to provide a buffer energy absorption mechanism for a hydraulic support upright post, which is convenient to replace and aims to solve the technical problems in the prior art.

The purpose of the invention is realized by the following technical scheme:

the invention relates to a buffer energy-absorbing mechanism for a hydraulic support upright post, which is convenient to replace, wherein the upright post comprises a buffer energy-absorbing mechanism and a main body part;

the buffering energy absorption mechanism comprises a cylinder body and a gland, and the lower end of the main body part is inserted into the cylinder body and is fixedly connected with the gland;

the cylinder body is internally provided with a buffer body, the gland bush is arranged on the excircle of the buffer body, and the excircle of the buffer body is not connected with the cylinder body.

Compared with the prior art, the buffering and energy absorbing mechanism for the hydraulic support upright post, which is provided by the invention, is convenient to replace, and parts needing to be damaged are designed independently and are not fixedly connected with other parts, so that the hydraulic support upright post is convenient to disassemble and replace.

Drawings

Fig. 1 is a schematic view of a shear groove type buffering energy absorption mechanism for a hydraulic support column in the prior art.

Fig. 2 provides a schematic view of a hydraulic support column according to an embodiment of the present invention.

Fig. 3 is a schematic view of a buffering and energy absorbing mechanism for a hydraulic bracket upright post, which is convenient to replace according to an embodiment of the present invention.

In the figure:

1. the cylinder comprises a cylinder bottom, a cylinder pipe, a gland, a guide ring, a guide sleeve and a buffer body, wherein the cylinder bottom is 2;

7. and the buffer energy absorption mechanism 8 is arranged on the main body part.

Detailed Description

The technical scheme in the embodiment of the invention is clearly and completely described below by combining the attached drawings in the embodiment of the invention; it is to be understood that the described embodiments are merely exemplary of the invention, and are not intended to limit the invention to the particular forms disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

The terms that may be used herein are first described as follows:

the term "and/or" means that either or both can be achieved, for example, X and/or Y means that both cases include "X" or "Y" as well as three cases including "X and Y".

The terms "comprising," "including," "containing," "having," or other similar terms of meaning should be construed as non-exclusive inclusions. For example: including a feature (e.g., material, component, ingredient, carrier, formulation, material, dimension, part, component, mechanism, device, process, procedure, method, reaction condition, processing condition, parameter, algorithm, signal, data, product, or article of manufacture), is to be construed as including not only the particular feature explicitly listed but also other features not explicitly listed as such which are known in the art.

The term "consisting of … …" is meant to exclude any technical feature elements not explicitly listed. If used in a claim, the term shall render the claim closed except for the inclusion of the technical features that are expressly listed except for the conventional impurities associated therewith. If the term occurs in only one clause of the claims, it is intended to only define the elements explicitly recited in that clause, and elements recited in other clauses are not excluded from the overall claims.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "secured," etc., are to be construed broadly, as for example: can be fixedly connected, can also be detachably connected or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms herein can be understood by those of ordinary skill in the art as appropriate.

The terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in an orientation or positional relationship that is indicated based on the orientation or positional relationship shown in the drawings for ease of description and simplicity of description only, and are not intended to imply or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting herein.

Details which are not described in detail in the embodiments of the invention belong to the prior art which is known to the person skilled in the art. Those not specifically mentioned in the examples of the present invention were carried out according to the conventional conditions in the art or conditions suggested by the manufacturer. The reagents or instruments used in the examples of the present invention are not specified by manufacturers, and are all conventional products available by commercial purchase.

And a shear groove is formed in the excircle of the buffer body.

The cylinder body comprises a cylinder bottom and a cylinder pipe.

And a guide ring and a guide sleeve are arranged between the lower end of the main body part and the upper opening of the cylinder pipe.

In order to more clearly show the technical solutions and the technical effects provided by the present invention, the following detailed description is provided for the embodiments of the present invention with specific embodiments.

Example 1

Firstly, the buffering energy absorption mechanism is the core of the invention, and the core working principle is still to absorb energy through mechanical damage, so as to play a role of yielding of the upright column; secondly, the convenience of replacement is another core of the invention, and the parts to be damaged are designed independently without fixed connection with other parts, so that the disassembly and replacement are convenient.

The specific implementation scheme is as shown in fig. 2 and fig. 3:

the shear groove type energy buffering and absorbing upright post for the hydraulic support comprises a buffering and energy absorbing mechanism 7 and a main body part 8;

the shear groove of the buffer body 6 is positioned at the excircle and is not fixedly connected with other parts (such as welding and the like), so that the installation and disassembly are convenient;

buffering energy-absorbing mechanism convenient to replacement:

wherein the shearing grooves are distributed on the outer side of the buffer body 6. When the mine roof suddenly comes high pressure, the main body part of the upright post transmits the pressure to the gland 3, and the gland 3 shears and destroys the annular boss outside the buffer body 6. When the boss in the buffer body 6 is sheared and damaged, the energy transmitted by the main body part of the upright post is absorbed, thereby playing a role in buffering and absorbing energy;

because the buffer body 6 is not fixedly connected with the cylinder bottom 1 and the cylinder tube 2, after the buffer body 6 absorbs energy, the buffer body is easily disassembled along with the gland 3, and the replacement of the buffer energy-absorbing mechanism can be realized by replacing the gland 3 and the buffer body 6 after the disassembly, and is more convenient.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims. The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Claims

1. A buffer energy-absorbing mechanism for a hydraulic support upright post, which is convenient to replace, is characterized in that the upright post comprises a buffer energy-absorbing mechanism and a main body part;

2. The hydraulic support column buffer energy absorption mechanism convenient to replace according to claim 1, wherein a shear groove is formed in the outer circle of the buffer body.

3. The hydraulic support column buffer energy absorption mechanism convenient to replace according to claim 2, wherein the cylinder body comprises a cylinder bottom and a cylinder pipe.

4. The hydraulic support column buffer energy absorption mechanism convenient to replace according to claim 3, wherein a guide ring and a guide sleeve are arranged between the lower end of the main body part and the upper opening of the cylinder pipe.