Hydraulic support processing method capable of improving force performance of hydraulic support column socket

Abstract

This invention belongs to the field of machining and relates to a method for processing a hydraulic support that improves the stress-bearing performance of the hydraulic support socket. The method includes connecting the socket to the main reinforcement. Specifically, the connection is achieved by: 1) welding the socket to the main reinforcement attached to both sides of the socket; 2) creating pin holes on the main reinforcement along the direction from the main reinforcement to the socket. These pin holes include a through-hole that penetrates the main reinforcement and a socket hole that is coaxial with the through-hole and recessed into the socket; 3) embedding a pin in the pin hole. This invention provides a simple, easy-to-install, and low-cost method for processing a hydraulic support that can continue to transmit and distribute pressure on the socket even after weld cracking around the socket, and extends the service life of the base.

Description

Technical Field

[0001] This invention belongs to the field of machining and relates to a method for machining hydraulic supports, and more particularly to a method for machining hydraulic supports that can improve the stress performance of the hydraulic support socket. Background Technology

[0002] Currently, common hydraulic supports used in mining operations typically consist of a column socket and main reinforcing bars welded to both sides of the socket. The column socket primarily bears the load through its vertical welds to the main reinforcing bars. However, due to structural and space limitations, the actual number of vertical welds between the column socket and the main reinforcing bars is relatively small. Therefore, when the support's safety valve fails to unload properly, the support remains under excessive overload and eccentric load for extended periods. Under continuous external force, the welds around the column socket can tear, and the main reinforcing bars cannot distribute the pressure on the column socket, leading to excessive pressure on the base plate and eventual damage. To overcome this problem, most hydraulic supports directly add a pad between the column socket and the floor, known as a column socket pad, with a structure as follows: Figure 1 As shown, this structure increases the connection between the column socket and the floor, which can prevent the base plate from being damaged due to excessive local pressure. However, it still cannot reduce the risk that the weld around the column socket will be torn under the action of sustained external force, causing the hydraulic support to fail and resulting in a safety accident. Summary of the Invention

[0003] In order to solve the above-mentioned technical problems in the background art, the present invention provides a hydraulic support processing method that improves the stress performance of the hydraulic support socket, which is simple in structure, easy to install, low in cost, can continue to transmit and disperse the pressure on the socket after the weld around the socket cracks, and can extend the service life of the base.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A method for processing a hydraulic support that can improve the stress performance of the column socket of a hydraulic support includes the step of connecting the column socket to the main reinforcement, characterized in that: the specific implementation of the connection between the column socket and the main reinforcement is as follows:

[0006] 1) Weld the column socket to the main reinforcement bars attached to both sides of the column socket;

[0007] 2) A pin hole is made on the main reinforcement along the direction from the main reinforcement to the column socket. The pin hole includes a main reinforcement through hole that penetrates the main reinforcement and a column socket hole that is coaxial with the main reinforcement through hole and is recessed into the column socket.

[0008] 3) Insert the pin into the pin hole.

[0009] The aforementioned pin is interference-fitted with the column recess hole; the pin is clearance-fitted with the through hole of the main reinforcement.

[0010] In step 2) above, there are two pin holes, which are symmetrically arranged; the number of pins is the same as the number of pin holes.

[0011] The aforementioned pin includes a flat end and a beveled end opposite to the flat end. The flat end of the pin extends into the pin hole, and the outer end face of the beveled end of the pin is flush with the outer surface of the main reinforcement.

[0012] The specific implementation method of connecting the column socket and the main reinforcement mentioned above also includes, after step 3):

[0013] 4) The end of the pin is welded to the main reinforcement.

[0014] The beveled end of the aforementioned pin is filled and welded to the outer side of the main reinforcement.

[0015] The dimensions and material of the aforementioned pins are designed based on the structure and material of the socket.

[0016] The advantages of this invention are:

[0017] This invention provides a hydraulic support processing method that can improve the stress performance of the hydraulic support socket, including the step of connecting the socket to the main reinforcement. The specific implementation of this connection is as follows: 1) Welding the socket to the main reinforcement attached to both sides of the socket; 2) Opening pin holes on the main reinforcement along the direction from the main reinforcement to the socket. The pin holes include a through hole penetrating the main reinforcement and a socket hole coaxial with the through hole; 3) Embedding a pin in the pin hole. This invention involves opening holes on both sides of the socket and on both sides of the main reinforcement. The size of the pin is designed according to the socket structure, and one end of the pin has a bevel. After the socket is assembled and welded, the pin is used to lock the main reinforcement to the socket, and the beveled end of the pin is filled and welded to the outside of the main reinforcement. This invention connects the column socket to the main reinforcement using a pin, which can compensate for the deficiencies of the weld and transfer the pressure on the column socket to the main reinforcement, directly improving the stress on the column socket and increasing the structural strength of the column socket part of the base. It has the advantages of simple and reliable structure, convenient installation, low cost, simple process, and can extend the service life of the support base, reduce the use cost for customers, and facilitate promotion and application. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the processing method of hydraulic supports in the prior art;

[0019] Figure 2 This is a schematic diagram illustrating the processing method of the hydraulic support provided by the present invention;

[0020] Figure 3 This is a front view schematic diagram of the column socket used in this invention;

[0021] Figure 4 yes Figure 3 A schematic diagram of direction AA;

[0022] Figure 5 This is a schematic diagram of the pin structure used in this invention;

[0023] Figure 6 This is a schematic diagram of the interference fit between the pin and the post hole used in this invention.

[0024] in:

[0025] 1-Column socket; 2-Main reinforcement; 3-Pin hole; 4-Pin shaft. Detailed Implementation

[0026] This invention provides a hydraulic support processing method that can improve the stress performance of the hydraulic support column socket. Similar to traditional processing methods, it includes the step of connecting the column socket to the main reinforcement. However, unlike traditional methods, the specific implementation of the connection between the column socket 1 and the main reinforcement 2 in this invention is as follows:

[0027] 1) Weld the column socket 1 to the main reinforcement bars 2 attached to both sides of the column socket;

[0028] 2) A pin hole 3 is made on the main reinforcement along the direction of the main reinforcement 2 toward the column socket 1. The pin hole 3 includes a main reinforcement through hole that passes through the main reinforcement and a column socket hole that is coaxial with the main reinforcement through hole and is recessed into the column socket.

[0029] 3) Insert the pin 4 into the pin hole 3, as shown in the structure. Figure 2 As shown.

[0030] 4) The end of the pin is welded to the main reinforcement.

[0031] To improve force transmission, this invention uses an interference fit between the pin 4 and the recessed hole, such as... Figure 6 As shown; the pin 4 has a clearance fit with the through hole of the main rib. To ensure balance, this invention uses two pin holes 3, which are symmetrically arranged; the number of pins 4 is the same as the number of pin holes 3, see [reference]. Figure 3 as well as Figure 4 See also Figure 5 The pin 4 includes a flat end and a beveled end opposite the flat end. The flat end of the pin 4 extends into the pin hole, and the outer end face of the beveled end of the pin 4 is flush with the outer surface of the main reinforcement. For example, the beveled end of the pin 4 is filled and welded to the outer surface of the main reinforcement.

[0032] The principle of this invention is as follows: Holes are made on both sides of the main reinforcing bars 2 and the column socket 1. A pin 4 is designed according to the structure and material of the column socket 1, with a bevel at one end. After the column socket 1 is assembled and welded, the pin 4 is used to lock the main reinforcing bars 2 and the column socket 1 together, and the beveled end of the pin 4 is welded to the outer side of the main reinforcing bar 2. The welded pin 4 has an interference fit with the column socket 1 and is welded to the main reinforcing bar 2. This invention can compensate for the deficiencies of the weld, transferring the pressure on the column socket 1 to the main reinforcing bars 2, allowing the main reinforcing bars 2 to work together with the column socket 1, while simultaneously dispersing the pressure on the column socket 1. This prevents damage to the base plate due to excessive pressure, increases the structural strength of the column socket section of the base, and extends the service life of the support base.

Claims

1. A hydraulic support processing method capable of improving the stress performance of a hydraulic support column socket, comprising the step of connecting the column socket with the main reinforcement, characterized in that: The specific implementation method for connecting the column socket to the main reinforcement is as follows: 1) Weld the column socket to the main reinforcement bars attached to both sides of the column socket; 2) A pin hole is made on the main reinforcement along the direction from the main reinforcement to the column socket. The pin hole includes a main reinforcement through hole that passes through the main reinforcement and a column socket hole that is coaxial with the main reinforcement through hole and is recessed into the column socket. There are two pin holes, and the two pin holes are symmetrically arranged. 3) Insert the pin into the pin hole; the pin is interference-fitted with the column socket hole; the pin is clearance-fitted with the through hole of the main reinforcement bar and the number of pins is the same as the number of pin holes; 4) The end of the pin is welded to the main reinforcing bar; The pin includes a flat end and a beveled end opposite to the flat end. The flat end of the pin extends into the pin hole, and the outer end face of the beveled end of the pin is flush with the outer surface of the main reinforcement. The beveled end of the pin is filled and welded to the outer surface of the main reinforcement.

2. The hydraulic support machining method capable of improving the force performance of the hydraulic support column socket according to claim 1, characterized in that: The dimensions and material of the pin are designed according to the structure and material of the post socket.

Images