Hydraulic pipeline arrangement structure of sliding type advanced hydraulic support

Abstract

The utility model belongs to the field of coal mine underground advanced hydraulic supports, and particularly relates to a hydraulic pipeline arrangement structure of a sliding type advanced hydraulic support. Each sliding type advanced hydraulic support comprises two sets of supporting frames which are arranged in a staggered mode, and the two sets of supporting frames are the first supporting frame and the second supporting frame respectively. The device further comprises a main valve and a functional valve block. The main valves and the functional valve blocks are divided into two groups, and the two groups of the main valves and the functional valve blocks control hydraulic execution elements on the first supporting frame and the second supporting frame respectively; the main valve and the functional valve block are located on the same side of the sliding type advanced hydraulic support. The main valve is located at the front end of the sliding type advanced hydraulic support in the withdrawing direction. The two groups of functional valve blocks are respectively fixed on the first support frame and the second support frame; according to the hydraulic pipeline arrangement structure of the sliding type advanced hydraulic support, classified and ordered control of hydraulic functions can be achieved, and troubleshooting and overhauling of hydraulic pipelines are facilitated.

Description

Technical Field

[0001] This utility model belongs to the field of underground advanced hydraulic supports in coal mines, specifically relating to a hydraulic pipeline layout structure for a sliding advanced hydraulic support. Background Technology

[0002] Coal mine advance supports are used in the support of advance roadways in fully mechanized mining faces to provide crucial support and protection. Due to the complex and variable geological conditions underground, and the impact of mining operations, the roof and floor of the roadway may become unstable, leading to roadway deformation. Currently, the hydraulic pipeline design and main valve of existing sliding advance supports are located in the middle of the support. If manual operation of the electro-hydraulic main valve controller is required, the support must be moved from below. Moving the sliding advance hydraulic support in a deformed roadway can cause instability, posing a safety hazard. To eliminate this safety hazard, a new hydraulic pipeline layout structure for sliding advance supports has been designed, placing the electro-hydraulic main valve at the front end in the retraction direction. This allows personnel to operate the sliding advance hydraulic support without being below it, preventing injury from instability during movement and eliminating the safety hazard. Utility Model Content

[0003] This invention addresses the problem that existing sliding advance support systems have hydraulic pipeline designs and main valves located in the middle of the support. If manual operation of the electro-hydraulic main valve controller is required, the support movement operation must be completed from below the support, posing a certain safety hazard.

[0004] This utility model provides the following technical solution: a hydraulic pipeline arrangement structure for a sliding advanced hydraulic support, wherein each sliding advanced hydraulic support includes two sets of staggered support frames, namely a first support frame and a second support frame.

[0005] It also includes a main valve and a functional valve block; the main valve and the functional valve block are divided into two groups, and the two groups of main valves and functional valve blocks control the hydraulic actuators on the first support frame and the second support frame respectively; the main valve and the functional valve block are located on the same side of the sliding advanced hydraulic support; the main valve is located at the front end of the sliding advanced hydraulic support in the retraction direction; the two groups of functional valve blocks are fixed on the first support frame and the second support frame respectively.

[0006] Furthermore, both the first and second support frames include columns and beams, with the functional valve block fixed to the side plate of the beam above the outer side of the column.

[0007] Furthermore, the first support frame includes three columns, namely column 1, column 3 and column 5; the second support frame includes three columns, namely column 2, column 4 and column 6.

[0008] The functional valve blocks include No. 1 fourteen-function valve block, No. 2 fourteen-function valve block, No. 1 nine-function valve block, No. 2 nine-function valve block, No. 1 five-function valve block, and No. 2 five-function valve block;

[0009] The No. 1 five-function valve block is installed at the No. 1 column, the No. 1 nine-function valve block is installed at the No. 3 column, and the No. 1 fourteen-function valve block is installed at the No. 5 column.

[0010] The No. 2 five-function valve block is installed at the No. 2 column, the No. 2 nine-function valve block is installed at the No. 4 column, and the No. 2 fourteen-function valve block is installed at the No. 6 column.

[0011] The main valve includes a No. 1 main valve and a No. 2 main valve. The No. 1 main valve, the No. 1 fourteen-function valve block, the No. 1 nine-function valve block, and the No. 1 five-function valve block are connected in sequence; the No. 2 main valve, the No. 2 fourteen-function valve block, the No. 2 nine-function valve block, and the No. 2 five-function valve block are connected in sequence.

[0012] Furthermore, the No. 1 main valve is connected to the inlet of the No. 1 fourteen-function valve block;

[0013] The first to fourth sets of liquid outlets of the No. 1 fourteen-function valve block are connected to the inlet and return ports of the hydraulic actuator; the fifth to twelfth sets of liquid outlets of the No. 1 fourteen-function valve block are connected to the first to eighth sets of liquid inlets of the No. 1 nine-function valve block; the thirteenth set of liquid outlets of the No. 1 fourteen-function valve block are connected to the inlet and return ports of the hydraulic actuator; and the fourteenth set of liquid outlets of the No. 1 fourteen-function valve block are connected to the ninth set of liquid inlets of the No. 1 nine-function valve block.

[0014] The first to fourth sets of liquid outlets of the No. 1 nine-function valve block are connected to the inlet and return ports of the hydraulic actuator; the fifth to ninth sets of liquid outlets of the No. 1 nine-function valve block are connected to the first to fifth sets of liquid inlet ports of the No. 1 five-function valve block.

[0015] The first to fifth group of liquid outlets of the No. 1 five-function valve block are connected to the inlet and return ports of the hydraulic actuator.

[0016] Furthermore, the No. 2 main valve is connected to the inlet of the No. 2 fourteen function valve block;

[0017] The first to fourth group of liquid outlets of the No. 2 fourteen-function valve block are connected to the inlet and return ports of the hydraulic actuator; the fifth to twelfth group of liquid outlets of the No. 2 fourteen-function valve block are connected to the first to eighth group of liquid inlets of the No. 2 nine-function valve block; the thirteenth group of liquid outlets of the No. 2 fourteen-function valve block are connected to the inlet and return ports of the hydraulic actuator; the fourteenth group of liquid outlets of the No. 2 fourteen-function valve block are connected to the ninth group of liquid inlets of the No. 2 nine-function valve block.

[0018] The first to fourth sets of liquid outlets of the No. 2 nine-function valve block are connected to the inlet and return ports of the hydraulic actuator; the fifth to ninth sets of liquid outlets of the No. 2 nine-function valve block are connected to the first to fifth sets of liquid inlet ports of the No. 2 five-function valve block.

[0019] The first to fifth group of outlet ports of the No. 2 five-function valve block are connected to the inlet and outlet ports of the hydraulic actuator.

[0020] Compared with the prior art, the advantages of this utility model are:

[0021] This utility model provides a hydraulic pipeline layout structure for a sliding advanced hydraulic support, which can realize the orderly control of hydraulic functions, facilitate the troubleshooting and maintenance of hydraulic pipeline faults, and make it easy to adjust the distance between the hydraulic control main valve and the support, effectively avoiding safety hazards when moving the support, and enabling remote control of the support without a remote control. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a sliding advanced hydraulic support;

[0023] Figure 2 This is a schematic diagram (front view) showing the location of the functional valve block;

[0024] Figure 3 This is a schematic diagram (side view) showing the location of the functional valve block;

[0025] Figure 4 This is a schematic diagram of the connection between functional valve blocks;

[0026] Figure 5 This is a schematic diagram of a five-function valve block;

[0027] Figure 6 This is a schematic diagram of a nine-function valve block;

[0028] Figure 7 This is a schematic diagram of a fourteen-function valve block.

[0029] In the diagram: 1-First support frame; 2-Second support frame; 3-Column; 3.1-Column No. 1; 3.2-Column No. 2; 3.3-Column No. 3; 3.4-Column No. 4; 3.5-Column No. 5; 3.6-Column No. 6; 4-Crossbeam; 5-No. 1 fourteen-function valve block; 6-No. 2 fourteen-function valve block; 7-No. 1 nine-function valve block; 8-No. 2 nine-function valve block; 9-No. 1 main valve; 10-No. 1 five-function valve block; 11-No. 2 five-function valve block; 12-No. 2 main valve. Detailed Implementation

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] like Figures 1 to 7 As shown: A hydraulic pipeline arrangement structure of a sliding advanced hydraulic support, each sliding advanced hydraulic support includes two sets of staggered support frames, namely the first support frame 1 and the second support frame 2; this utility model does not change the mechanical structure of the sliding advanced hydraulic support; the mechanical principle and operation mode of the sliding advanced hydraulic support can be found in the prior art.

[0032] It also includes a main valve and functional valve blocks; the main valve and functional valve blocks are divided into two groups, and the two groups of main valves and functional valve blocks control the hydraulic actuators on the first support frame 1 and the second support frame 2 respectively. The hydraulic actuators are all hydraulic cylinders; the main valve and functional valve blocks are located on the same side of the sliding advanced hydraulic support; the main valve is located at the front end of the sliding advanced hydraulic support in the retraction direction; the two groups of functional valve blocks are fixed on the first support frame 1 and the second support frame 2 respectively. The first support frame 1 and the second support frame 2 of the sliding advanced hydraulic support operate alternately, therefore, two groups of main valves and functional valve blocks are used to control the hydraulic actuators on the first support frame 1 and the second support frame 2 respectively.

[0033] Both the first support frame 1 and the second support frame 2 include a column 3 and a crossbeam 4. The functional valve block is fixed on the side plate of the crossbeam 4 above the outer side of the column 3; the functional valve block is fixed with bolts.

[0034] The first support frame 1 includes three columns 3, namely column 1 3.1, column 3 3.3 and column 5 3.5; the second support frame 2 includes three columns 3, namely column 2 3.2, column 4 3.4 and column 6 3.6.

[0035] The functional valve blocks include No. 1 fourteen-function valve block 5, No. 2 fourteen-function valve block 6, No. 1 nine-function valve block 7, No. 2 nine-function valve block 8, No. 1 five-function valve block 10, and No. 2 five-function valve block 11.

[0036] The No. 1 five-function valve block 10 is installed at the No. 1 column 3.1, the No. 1 nine-function valve block 7 is installed at the No. 3 column 3.3, and the No. 1 fourteen-function valve block 5 is installed at the No. 5 column 3.5.

[0037] The No. 2 five-function valve block 11 is installed at the No. 2 column 3.2, the No. 2 nine-function valve block 8 is installed at the No. 4 column 3.4, and the No. 2 fourteen-function valve block 6 is installed at the No. 6 column 3.6.

[0038] The main valve includes main valve 9 and main valve 12. Main valve 9, fourteen-function valve block 5, nine-function valve block 7, and five-function valve block 10 are connected in sequence. Main valve 12, fourteen-function valve block 6, nine-function valve block 8, and five-function valve block 11 are connected in sequence.

[0039] The No. 1 main valve 9 is connected to the liquid inlet of the No. 1 fourteen-function valve block 5;

[0040] The first to fourth group of liquid outlets of the No. 1 fourteen-function valve block 5 are connected to the inlet and return ports of the hydraulic actuator; the fifth to twelfth group of liquid outlets of the No. 1 fourteen-function valve block 5 are connected to the first to eighth group of liquid inlets of the No. 1 nine-function valve block 7; the thirteenth group of liquid outlets of the No. 1 fourteen-function valve block 5 are connected to the inlet and return ports of the hydraulic actuator; the fourteenth group of liquid outlets of the No. 1 fourteen-function valve block 5 are connected to the ninth group of liquid inlets of the No. 1 nine-function valve block 7.

[0041] The first to fourth group of liquid outlets of the No. 1 nine-function valve block 7 are connected to the inlet and return ports of the hydraulic actuator; the fifth to ninth group of liquid outlets of the No. 1 nine-function valve block 7 are connected to the first to fifth group of liquid inlet ports of the No. 1 five-function valve block 10.

[0042] The first to fifth group of liquid outlets of the No. 1 five-function valve block 10 are connected to the inlet and return ports of the hydraulic actuator.

[0043] The No. 2 main valve 12 is connected to the inlet of the No. 2 fourteen function valve block 6;

[0044] The first to fourth group of liquid outlets of the No. 2 fourteen-function valve block 6 are connected to the inlet and return ports of the hydraulic actuator; the fifth to twelfth group of liquid outlets of the No. 2 fourteen-function valve block 6 are connected to the first to eighth group of liquid inlets of the No. 2 nine-function valve block 8; the thirteenth group of liquid outlets of the No. 2 fourteen-function valve block 6 are connected to the inlet and return ports of the hydraulic actuator; the fourteenth group of liquid outlets of the No. 2 fourteen-function valve block 6 are connected to the ninth group of liquid inlets of the No. 2 nine-function valve block 8.

[0045] The first to fourth sets of liquid outlets of the No. 2 nine-function valve block 8 are connected to the inlet and return ports of the hydraulic actuator; the fifth to ninth sets of liquid outlets of the No. 2 nine-function valve block 8 are connected to the first to fifth sets of liquid inlet ports of the No. 2 five-function valve block 11.

[0046] The first to fifth group of outlet ports of the No. 2 five-function valve block 11 are connected to the inlet and outlet ports of the hydraulic actuator.

[0047] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A hydraulic pipeline arrangement structure for a sliding advanced hydraulic support, wherein each sliding advanced hydraulic support includes two sets of staggered support frames, namely a first support frame (1) and a second support frame (2). Its features are: It also includes a main valve and a functional valve block; the main valve and the functional valve block are divided into two groups, and the two groups of main valves and functional valve blocks control the hydraulic actuators on the first support frame (1) and the second support frame (2) respectively; the main valve and the functional valve block are located on the same side of the sliding advanced hydraulic support; the main valve is located at the front end of the sliding advanced hydraulic support in the retraction direction; the two groups of functional valve blocks are fixed on the first support frame (1) and the second support frame (2) respectively.

2. The hydraulic pipeline arrangement structure of a sliding advanced hydraulic support according to claim 1, characterized in that: The first support frame (1) and the second support frame (2) both include a column (3) and a crossbeam (4), and the functional valve block is fixed on the side plate of the crossbeam (4) above the outside of the column (3).

3. The hydraulic pipeline arrangement structure of a sliding advanced hydraulic support according to claim 2, characterized in that: The first support frame (1) includes three columns (3), namely column 1 (3.1), column 3 (3.3) and column 5 (3.5); the second support frame (2) includes three columns (3), namely column 2 (3.2), column 4 (3.4) and column 6 (3.6); The functional valve blocks include No. 1 fourteen-function valve block (5), No. 2 fourteen-function valve block (6), No. 1 nine-function valve block (7), No. 2 nine-function valve block (8), No. 1 five-function valve block (10), and No. 2 five-function valve block (11); The No. 1 five-function valve block (10) is installed at the No. 1 column (3.1), the No. 1 nine-function valve block (7) is installed at the No. 3 column (3.3), and the No. 1 fourteen-function valve block (5) is installed at the No. 5 column (3.5). The No. 2 five-function valve block (11) is installed at the No. 2 column (3.2), the No. 2 nine-function valve block (8) is installed at the No. 4 column (3.4), and the No. 2 fourteen-function valve block (6) is installed at the No. 6 column (3.6); The main valve includes a No. 1 main valve (9) and a No. 2 main valve (12). The No. 1 main valve (9), the No. 1 fourteen-function valve block (5), the No. 1 nine-function valve block (7), and the No. 1 five-function valve block (10) are connected in sequence; the No. 2 main valve (12), the No. 2 fourteen-function valve block (6), the No. 2 nine-function valve block (8), and the No. 2 five-function valve block (11) are connected in sequence.

4. The hydraulic pipeline arrangement structure of a sliding advanced hydraulic support according to claim 3, characterized in that: The No. 1 main valve (9) is connected to the inlet of the No. 1 fourteen-function valve block (5); The first to fourth group of liquid outlets of the No. 1 fourteen-function valve block (5) are connected to the inlet and return ports of the hydraulic actuator; the fifth to twelfth group of liquid outlets of the No. 1 fourteen-function valve block (5) are connected to the first to eighth group of liquid inlets of the No. 1 nine-function valve block (7); the thirteenth group of liquid outlets of the No. 1 fourteen-function valve block (5) are connected to the inlet and return ports of the hydraulic actuator; the fourteenth group of liquid outlets of the No. 1 fourteen-function valve block (5) are connected to the ninth group of liquid inlets of the No. 1 nine-function valve block (7); The first to fourth group of liquid outlets of the No. 1 nine-function valve block (7) are connected to the inlet and return ports of the hydraulic actuator; the fifth to ninth group of liquid outlets of the No. 1 nine-function valve block (7) are connected to the first to fifth group of liquid inlets of the No. 1 five-function valve block (10); The first to fifth group of liquid outlets of the No. 1 five-function valve block (10) are connected to the inlet and return ports of the hydraulic actuator.

5. The hydraulic pipeline arrangement structure of a sliding advanced hydraulic support according to claim 3, characterized in that: The No. 2 main valve (12) is connected to the inlet of the No. 2 fourteen function valve block (6); The first to fourth group of liquid outlets of the No. 2 fourteen-function valve block (6) are connected to the inlet and return ports of the hydraulic actuator; the fifth to twelfth group of liquid outlets of the No. 2 fourteen-function valve block (6) are connected to the first to eighth group of liquid inlets of the No. 2 nine-function valve block (8); the thirteenth group of liquid outlets of the No. 2 fourteen-function valve block (6) are connected to the inlet and return ports of the hydraulic actuator; the fourteenth group of liquid outlets of the No. 2 fourteen-function valve block (6) are connected to the ninth group of liquid inlets of the No. 2 nine-function valve block (8); The first to fourth group of liquid outlets of the No. 2 nine-function valve block (8) are connected to the inlet and return ports of the hydraulic actuator; the fifth to ninth group of liquid outlets of the No. 2 nine-function valve block (8) are connected to the first to fifth group of liquid inlet ports of the No. 2 five-function valve block (11); The first to fifth group of outlet ports of the No. 2 five-function valve block (11) are connected to the inlet and outlet ports of the hydraulic actuator.

Images