A large-resistance transition hydraulic support hydraulic system and a hydraulic support

Abstract

The application provides a large-resistance transition hydraulic support hydraulic system and a hydraulic support, and belongs to the technical field of hydraulic supports; solves the problem of the current large-resistance transition hydraulic support hydraulic system arrangement; the hydraulic system comprises inter-support liquid inlet and return, an electro-hydraulic reversing valve group, an automatic back-flushing filter and a controller; the inter-support liquid inlet is composed of a diagonal beam, a conical surface stop valve, a liquid return three-way break valve, a flat surface stop valve and a barrel filter; the diagonal beam is fixed between the top beam and the front connecting rod of the transition support; three groups of valve seats are evenly welded on the surface of the diagonal beam cover plate; the conical surface stop valve, the liquid return three-way break valve and the flat surface stop valve are fixed on the corresponding valve seats respectively; the barrel filter is quickly inserted into the flat surface stop valve interface and fixed; the inter-support liquid inlet is communicated with the electro-hydraulic control reversing valve group; high-pressure liquid enters the automatic back-flushing filter after passing through the conical surface stop valve, and then enters the support pipeline from the liquid inlet of the electro-hydraulic reversing valve group; the application is applied to the transition support.

Description

Technical Field

[0001] This application relates to the field of hydraulic support hydraulic system technology, and in particular to a high-resistance transition hydraulic support hydraulic system and hydraulic support. Background Technology

[0002] In the coal mining industry, hydraulic supports are key support equipment for fully mechanized coal mining. Their main function is to stably support the roof of the working face, creating a safe and stable working space for equipment such as coal mining machines and scraper conveyors. However, traditional hydraulic support system layouts face the following challenges and limitations: Hydraulic system layouts that operate well in ordinary working faces often prove inadequate in the face of the aforementioned "high-resistance transition" environment, leading to decreased system reliability and stability. To meet the requirements of multi-action and multi-cylinder coordination, hydraulic pipelines are often numerous and complexly routed, making them susceptible to compression, scraping, and damage in the narrow, dynamic working face space, resulting in leaks or failures. Space is typically even more limited in the transition support area of ​​the working face, and the complex and dense pipeline layout makes locating fault points and replacing components extremely difficult. Utility Model Content

[0003] To address the current challenges in arranging hydraulic systems for high-resistance transition hydraulic supports, this application proposes a hydraulic system and hydraulic support for high-resistance transition hydraulic supports, which can provide a systematic solution for extreme working conditions.

[0004] The technical solution adopted in this application is: a hydraulic system for a high-resistance transition hydraulic support, including inter-support fluid inlet and return, an electro-hydraulic directional valve group, an automatic backwash filter and a controller. The inter-support fluid inlet and return consists of an inclined beam, a conical shut-off valve, a return three-way shut-off valve, a flat shut-off valve and a cylindrical filter. The inclined beam is fixed between the top beam and the front connecting rod of the transition support. Three sets of valve seats are evenly distributed on the surface of the inclined beam cover plate. The conical shut-off valve, the return three-way shut-off valve and the flat shut-off valve are fixed on the corresponding valve seats respectively. The cylindrical filter is quickly inserted into the interface of the flat shut-off valve and fixed. The inlet and outlet fluids between the racks are connected to the electro-hydraulic directional valve group. The high-pressure liquid enters the automatic backwash filter after passing through the conical shut-off valve, and then enters the rack pipeline from the inlet of the electro-hydraulic directional valve group. The controller is connected to the control terminals of the electro-hydraulic directional valve group and the automatic backwash filter via cables.

[0005] Furthermore, the conical shut-off valve, the return three-way shut-off valve, and the flat shut-off valve are evenly distributed on the right, middle, and left sides, or the left, middle, and right sides of the inclined beam cover plate.

[0006] Furthermore, the automatic backwash filter is fixed on a set of valve seats fixed on the surface of the middle cover plate at the rear of the base of the transition bracket. A movable pipe clamp is set at the front of the automatic backwash filter, and four sets of fixed pipe clamps are set on both sides of the base.

[0007] Furthermore, a set of valve seat fixing and pushing one-way locks are installed on the rear cover plate of the front column socket of the base, a set of valve seat fixing and pushing speed regulating valves are installed on the other side of the rear cover plate of the front column socket of the base, two sets of hanging blocks and hose brackets are installed in the middle of the base, a set of valve seat fixing and bottom adjusting one-way locks are installed at the front of the rear column socket of the base, U-shaped pipe clamps are installed on both sides of the base, and a set of automatic backwash filter drainage straight passages are installed on the main stiffening plate at the rear of the base.

[0008] Furthermore, a set of multi-way block valve plates are welded to the cover plate surface at the front of the shield beam of the transition support. The first multi-way block and the second multi-way block are fixed on the multi-way block valve plate. A set of valve seats are welded to the cover plate at the front of the shield beam to fix the side-push multi-way block. A one-way lock valve plate is welded to the middle of the rear of the side-push multi-way block to fix the insert plate one-way lock. A one-way valve fixing plate is welded to the rear of the one-way lock valve plate to fix the one-way valve. A set of ear plates is welded to the rear of the shield beam to fix the spray nozzle. The spray pipe connected to the spray nozzle enters the support pipe through the flat stop valve and the cartridge filter. The spray nozzle is controlled by the electro-hydraulic directional valve group.

[0009] Furthermore, a set of fixed valve plates is welded to the main rib inside the base. A main valve support plate is installed on the inner side of the fixed valve plate. A first reversing valve mounting bracket and a second reversing valve mounting bracket are installed on the inner side of the main valve support plate. A cable valve seat is respectively set directly below the first reversing valve mounting bracket and the second reversing valve mounting bracket. A first electro-hydraulic reversing valve is fixed directly above the first reversing valve mounting bracket, and a second electro-hydraulic reversing valve is fixed directly above the second reversing valve mounting bracket.

[0010] Furthermore, a set of valve seats is provided on one side of the front connecting rod cover plate of the transition support to fix the regulated power supply, and a set of valve seats is provided above the regulated power supply to fix the signal converter. A set of valve seats is provided on the other side of the front connecting rod cover plate to fix the front connecting rod wireless tilt sensor, and a set of valve seats is provided above the front connecting rod wireless tilt sensor to fix the switch. An integrated valve seat is provided in the middle of the front connecting rod to fix the coal discharge valve plate, and a coal discharge controller is snapped onto the coal discharge valve plate.

[0011] Furthermore, a set of valve seats is welded to the cover plate on one side of the tail beam of the transition support to fix the wireless tilt sensor of the tail beam; a set of valve seats is welded to the cover plate in the middle of the top beam to fix the wireless tilt sensor of the top beam; a cable valve seat is welded in front of the wireless tilt sensor of the front connecting rod to fix the cable of the audible and visual alarm and the personnel locator; a first valve plate is welded in front of the audible and visual alarm to fix the one-way lock of the front beam; a second valve plate is welded in front of the first valve plate to fix the pan-tilt camera; a third valve plate is welded in front of the second valve plate to fix the two-way lock; a set of valve seats is welded to the rear of the front beam of the transition support near the support beam to fix the radar ranging equipment; and a set of valve seats is welded to the surface of the side guard plate cover plate of the transition support to fix the side guard wireless tilt sensor.

[0012] Furthermore, the controller is connected via cables to the audible and visual alarm, personnel locator, pan-tilt camera, radar ranging device, coal discharge controller, and multiple electro-hydraulic directional valves. The controller also communicates wirelessly with multiple wireless tilt sensors via a wireless communication module.

[0013] A hydraulic support, on which the aforementioned high-resistance transition hydraulic support hydraulic system is arranged.

[0014] The advantages of this application over the prior art are as follows: 1. The support structure of this application has improved coordination capabilities. The hydraulic circuit integrates a powerful bottom-lifting jack and a flexible side-adjustment mechanism, which can work together during support relocation to solve problems such as bottoming out, support jamming, and support squeezing. The electro-hydraulic control system precisely coordinates the timing and force of actions such as pushing, bottom lifting, side protection, and side protection, greatly improving support relocation efficiency and shortening cycle time.

[0015] 2. This application can significantly improve system reliability and durability by using technologies such as valve block integration, quick-connect couplings, and armored hoses, which greatly reduces pipeline length and the number of joints, thereby reducing the risk of leaks and mechanical damage.

[0016] 3. This application improves the vibration and impact protection of the support, optimizes the pipeline fixing method and buffer design, and reduces pipeline fatigue failure caused by equipment vibration and top plate impact.

[0017] 4. This application improves the convenience of support maintenance, reduces the number and complexity of pipelines, and, combined with quick-connect couplings, makes downhole maintenance and replacement faster and shortens downtime. Attached Figure Description

[0018] The following description, in conjunction with the accompanying drawings, further illustrates this application: Figure 1 This is a schematic diagram of the main structure of the hydraulic support as shown in the embodiments of this application; Figure 2 This is a schematic diagram of the inclined beam arrangement given in the embodiments of this application; Figure 3 This is a schematic diagram of the base arrangement provided in an embodiment of this application; Figure 4 This is a top view of the base arrangement given in an embodiment of this application; Figure 5 This is a cross-sectional view of the base arrangement given in an embodiment of this application; Figure 6 This is a schematic diagram of the front linkage arrangement provided in an embodiment of this application; Figure 7 This is a schematic diagram of the tail beam arrangement of the shield beam given in the embodiments of this application; Figure 8 This is a schematic diagram of the top beam assembly layout given in the embodiments of this application; In the diagram: 1 is the inlet / outlet fluid of the frame; 2 is the electro-hydraulic directional valve assembly; 3 is the automatic backwash filter; 4 is the controller; 5 is the regulated power supply; 6 is the pan-tilt camera; 11 is the inclined beam; 12 is the conical shut-off valve; 13 is the return fluid three-way shut-off valve; 14 is the flat shut-off valve; 15 is the cartridge filter; 16 is the valve seat; 21 is the base; 22 is the fixed valve plate; 23 is the main valve support plate; 24 is the first directional valve mounting bracket; 25 is the second directional valve. Mounting bracket, 26 is the first electro-hydraulic directional valve, 27 is the second electro-hydraulic directional valve, 28 is the cable valve seat, 31 is the rectangular backwash mounting plate, 32 is the movable pipe clamp, 33 is the fixed pipe clamp, 34 is the push-to-lock one-way lock, 35 is the push-to-regulate valve, 36 is the hanging block, 37 is the hose bracket, 38 is the bottom-adjustment one-way lock, 39 is the U-shaped pipe clamp, 40 is the drain straight-through, 41 is the controller protective cover, 42 is the controller support plate, and 51 is the front connecting rod. 61 is the top beam, 62 is the top beam wireless tilt sensor, 63 is the audible and visual alarm, 64 is the personnel locator, 65 is the first valve plate, 66 is the second valve plate, 67 is the third valve plate, 68 is the two-way lock, 69 is the front beam one-way lock, 71 is the shield beam, 72 is the first multi-way block, 73 is the second multi-way block, 74 is the side-push multi-way block, 75 is the insert plate one-way lock, 76 is the one-way valve, 77 is the spray nozzle, and 78 is the tail beam wireless tilt sensor. Sensor, 79 is ear plate, 80 is one-way valve fixing plate, 81 is one-way lock valve plate, 82 is multi-way block valve plate, 83 is tail beam, 91 is front beam, 92 is radar ranging, 93 is support beam, 101 is signal converter, 102 is front connecting rod wireless tilt sensor, 103 is switch, 104 is integrated valve seat, 105 is coal discharge valve plate, 106 is coal discharge controller, 110 is side protection plate, 111 is side protection wireless tilt sensor. Detailed Implementation

[0019] like Figures 1 to 8 As shown, this application provides a hydraulic system for a high-resistance transition hydraulic support, mainly including an inter-support fluid inlet / outlet 1, an electro-hydraulic directional valve group 2, an automatic backwash filter 3, a controller 4, a regulated power supply 5, and a pan-tilt camera 6. The inter-support fluid inlet / outlet 1 is composed of an inclined beam 11, a conical shut-off valve 12, a return fluid three-way shut-off valve 13, a flat shut-off valve 14, and a cartridge filter 15. The inclined beam 11 is fixed between the top beam 61 and the front connecting rod 51 of the support. Three sets of valve seats 16 are welded to the surface of the inclined beam 11 cover plate. The conical shut-off valve 12 is located on the right side of the inclined beam 11 cover plate and fixed to the valve seat 16 with bolts and nuts. The return fluid three-way shut-off valve 13 is located in the middle of the inclined beam 11 cover plate and fixed to the valve seat 16 with bolts and nuts. The flat shut-off valve 14 is located on the left side of the inclined beam 11 cover plate and fixed to the valve seat 16 with bolts and nuts. The cartridge filter 15 is quickly inserted into the interface of the flat shut-off valve 14 and fixed with a U-shaped pin. The conical shut-off valve 12, the return liquid three-way shut-off valve 13, and the flat shut-off valve 14 are evenly distributed vertically, exposing the installation space of the inter-rack pipe.

[0020] A set of fixed valve plates 22 are welded to the main ribs inside the base 21. Main valve support plates 23 are respectively installed inside the fixed valve plates 22. A first directional valve mounting bracket 24 is fixed inside the main valve support plate 23, and a second directional valve mounting bracket 25 is fixed inside the main valve support plate 23. A cable valve seat 28 is located directly below the first directional valve mounting bracket 24, and a cable valve seat 28 is located directly below the second directional valve mounting bracket 25. A first electro-hydraulic directional valve 26 is located directly above the first directional valve mounting bracket 24 and fixed with screws, and a second electro-hydraulic directional valve 27 is located directly above the second directional valve mounting bracket 25 and fixed with screws.

[0021] A set of valve seats 16 is provided on the surface of the middle cover plate at the rear of the base 21. A rectangular backwash mounting plate 31 is fixed on the valve seats 16, and the automatic backwash filter 3 is fixed on the backwash mounting plate 31 with screws. A movable pipe clamp 32 is provided at the front of the automatic backwash filter 3, and four sets of fixed pipe clamps 33 are provided on both sides of the base 21.

[0022] A set of fixed valve plates 22 are set in front of the automatic backwash filter 3 on the surface of the middle cover plate at the rear of the base 21. The controller support plate 42 is installed on the inner side of the fixed valve plate 22. The rotatable controller mounting bracket is installed on the upper part of the controller support plate 42. The controller 4 is installed inside the controller protective cover 41. The controller protective cover 41 is installed on the controller mounting bracket.

[0023] A set of valve seats 16 are installed on the rear cover plate of the front column socket of the base 21 to fix a push-pull one-way lock 34, and a set of valve seats 16 are installed on the other side of the cover plate to fix a push-pull speed regulating valve 35. Two sets of hanging blocks 36 and hose brackets 37 are installed in the middle of the base 21. A set of valve seats 16 are installed at the front of the rear column socket of the base 21 to fix a bottom adjustment one-way lock 38. U-shaped pipe clamps 39 are installed on both sides of the base 21. A set of automatic backwash filter 3 drainage straight passages 40 are installed on the rear main stiffening plate of the base 21.

[0024] A valve seat 16 is installed on the right side of the front connecting rod 51 cover plate to fix the regulated power supply 5. Above the regulated power supply 5, a set of valve seats 16 is installed to fix the signal converter 101. A set of valve seats 16 is installed on the left side of the front connecting rod 51 cover plate to fix the front connecting rod wireless tilt sensor 102. Above the front connecting rod wireless tilt sensor 102, a set of valve seats 16 is installed to fix the switch 103. An integrated valve seat 104 is installed in the middle of the front connecting rod 51 to fix the coal discharge valve plate 105. The coal discharge controller 106 is clipped onto the coal discharge valve plate 105.

[0025] A set of multi-pass valve plates 82 are welded to the surface of the cover plate at the front of the shield beam 71. The first multi-pass block 72 and the second multi-pass block 73 are fixed to the multi-pass valve plates 82 with bolts and nuts. A set of valve seats 16 are welded to the cover plate to fix the side-push multi-pass block 74. A one-way lock valve plate 81 is welded to the middle of the rear of the side-push multi-pass block 74 to fix the insert plate one-way lock 75. A one-way valve fixing plate 80 is welded to the rear of the one-way lock valve plate 81 to fix the one-way valve 76. A set of ear plates 79 are welded to the rear of the shield beam 71 to fix the spray nozzle 77.

[0026] A set of valve seats 16 are welded to the right cover plate of the tail beam 83 to fix the wireless tilt sensor 78 of the tail beam.

[0027] A set of valve seats 16 is welded to the middle cover plate of the top beam 61 to fix the wireless tilt sensor 62 of the top beam. Cable valve seats 28 are welded in front of the wireless tilt sensor 102 of the front connecting rod to fix the cables of the audible and visual alarm 63 and the personnel locator 64, respectively. A first valve plate 65 is welded in front of the audible and visual alarm 63 to fix the one-way lock 69 of the front beam. A second valve plate 66 is set in front of the first valve plate 65 to fix the pan-tilt camera 6. A third valve plate 67 is set in front of the second valve plate 66 to fix the two-way lock 68.

[0028] A set of valve seats 16 are welded to the rear of the front beam 91 near the support beam 93 to fix the radar ranging device 92. A set of ear plates 79 are welded to the surface of the right cover plate of the front beam 91 to fix the spray nozzle 77.

[0029] A set of valve seats 16 are welded to the surface of the cover plate of the side guard plate 110 to fix the wireless tilt sensor 111 of the side guard plate.

[0030] Based on the aforementioned hydraulic system, this application also proposes a high-resistance transition hydraulic support. The hydraulic system is arranged on the hydraulic support, specifically by installing the inclined beam 11 between the top beam 61 and the front connecting rod 51. The corresponding inter-frame inlet and outlet hydraulic lines and valve groups are arranged on the hydraulic support according to the layout of the hydraulic system. By arranging the hydraulic system, electro-hydraulic control system, and intelligent system on the high-resistance transition hydraulic support, the inter-frame inlet and outlet hydraulic lines 1, electro-hydraulic directional valve group 2, automatic backwash filter 3, and other equipment are rationally distributed on the transition support. This effectively controls various actions of the support and collects the pressure values ​​of each support, the pushing stroke of each support, the operating status of each solenoid valve, the communication status between the main unit and the working face control system, and the fault status.

[0031] The working principle of this application is as follows: Under the action of the emulsion pump, the hydraulic support is connected to the electro-hydraulic directional valve group 2 through the inter-support inlet / outlet liquid 1. High-pressure liquid enters the automatic backwash filter 3 after passing through the conical shut-off valve 12, and then enters the support pipeline from the inlet of the electro-hydraulic directional valve group 2. The controller 4 controls the electro-hydraulic directional valve group 2 to realize various actions of the support. The electro-hydraulic directional valve group 2 controls the support movement through various valves. Then, the liquid flows through the return port of the electro-hydraulic directional valve group 2 into the inter-support inlet / outlet liquid 13. The spray pipeline enters the support through the flat shut-off valve 14 and the cylindrical filter 15, and the spray nozzle is controlled by the electro-hydraulic directional valve group 2. The controller 4 is connected to various electro-hydraulic intelligent components through cables, collecting the pressure values ​​of each support, the pushing stroke of each support, the action status of each solenoid valve, the communication status between the main unit and the working face control system, and the fault status.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A hydraulic system for a high-resistance transition hydraulic support, characterized in that: The system includes an inter-rack inlet / outlet liquid (1), an electro-hydraulic directional valve group (2), an automatic backwash filter (3), and a controller (4). The inter-rack inlet / outlet liquid (1) consists of an inclined beam (11), a conical shut-off valve (12), a return liquid three-way shut-off valve (13), a flat shut-off valve (14), and a cylindrical filter (15). The inclined beam (11) is fixed between the top beam (61) of the transition support and the front connecting rod (51). Three sets of valve seats (16) are evenly distributed on the surface of the cover plate of the inclined beam (11). The conical shut-off valve (12), the return liquid three-way shut-off valve (13), and the flat shut-off valve (14) are fixed on the corresponding valve seats (16). The cylindrical filter (15) is quickly inserted into the interface of the flat shut-off valve (14) and fixed. The inlet and outlet liquid (1) between the racks is connected to the electro-hydraulic directional valve group (2). After passing through the cone-shaped shut-off valve (12), the high-pressure liquid enters the automatic backwash filter (3) and then enters the support pipeline from the inlet of the electro-hydraulic directional valve group (2). The controller (4) is connected to the control terminals of the electro-hydraulic directional valve group (2) and the automatic backwash filter (3) via a cable.

2. The hydraulic system for a high-resistance transition hydraulic support according to claim 1, characterized in that: The conical shut-off valve (12), the return liquid three-way shut-off valve (13), and the flat shut-off valve (14) are evenly distributed on the right, middle, and left or left, middle, and right sides of the inclined beam (11) cover plate.

3. The hydraulic system for a high-resistance transition hydraulic support according to claim 1, characterized in that: The automatic backwash filter (3) is fixed on a set of valve seats (16) fixed on the surface of the middle cover plate at the rear of the base (21) of the transition bracket. A movable pipe clamp (32) is set at the front of the automatic backwash filter (3), and four sets of fixed pipe clamps (33) are set on both sides of the base (21).

4. The hydraulic system for a high-resistance transition hydraulic support according to claim 2, characterized in that: A set of valve seats (16) are installed on the back cover plate of the front column socket of the base (21) to fix the push one-way lock (34). A set of valve seats (16) are installed on the other side of the back cover plate of the front column socket of the base (21) to fix the push speed control valve (35). Two sets of hanging blocks (36) and hose brackets (37) are installed in the middle of the base (21). A set of valve seats (16) are installed at the front of the column socket of the rear column of the base (21) to fix the bottom adjustment one-way lock (38). U-shaped pipe clamps (39) are installed on both sides of the base (21). A set of automatic backwash filter (3) drainage straight passage (40) is installed on the main stiffening plate at the rear of the base (21).

5. The hydraulic system for a high-resistance transition hydraulic support according to claim 1, characterized in that: A set of multi-port valve plates (82) are welded to the cover plate surface at the front of the shield beam (71) of the transition support. The first multi-port block (72) and the second multi-port block (73) are fixed on the multi-port valve plate (82). A set of valve seats (16) are welded to the cover plate at the front of the shield beam (71) to fix the side-push multi-port block (74). A one-way lock valve plate (81) is welded to the middle of the rear of the side-push multi-port block (74) to fix the insert plate one-way lock (75). A one-way valve fixing plate (80) is welded to the rear of the one-way lock valve plate (81) to fix the one-way valve (76). A set of ear plates (79) is welded to the rear of the shield beam (71) to fix the spray nozzle (77). The spray pipe connected to the spray nozzle (77) enters the support pipe through the plane stop valve (14) and the cartridge filter (15). The spray nozzle (77) is controlled by the electro-hydraulic directional valve group (2).

6. The hydraulic system for a high-resistance transition hydraulic support according to claim 4, characterized in that: A set of fixed valve plates (22) are welded on the main rib inside the base (21). A main valve support plate (23) is installed on the inner side of the fixed valve plate (22). A first reversing valve mounting bracket (24) and a second reversing valve mounting bracket (25) are installed on the inner side of the main valve support plate (23). A cable valve seat (28) is set directly below the first reversing valve mounting bracket (24) and the second reversing valve mounting bracket (25). A first electro-hydraulic reversing valve (26) is fixed directly above the first reversing valve mounting bracket (24), and a second electro-hydraulic reversing valve (27) is fixed directly above the second reversing valve mounting bracket (25).

7. A hydraulic system for a high-resistance transition hydraulic support according to any one of claims 1-6, characterized in that: A set of valve seats (16) is provided on one side of the cover plate of the front connecting rod (51) of the transition support to fix the regulated power supply (5). A set of valve seats (16) is provided above the regulated power supply (5) to fix the signal converter (101). A set of valve seats (16) is provided on the other side of the cover plate of the front connecting rod (51) to fix the wireless tilt sensor (102) of the front connecting rod. A set of valve seats (16) is provided above the wireless tilt sensor (102) of the front connecting rod to fix the switch (103). An integrated valve seat (104) is provided in the middle of the front connecting rod (51) to fix the coal discharge valve plate (105). A coal discharge controller (106) is snapped onto the coal discharge valve plate (105).

8. The hydraulic system for a high-resistance transition hydraulic support according to claim 7, characterized in that: A set of valve seats (16) is welded to the cover plate on one side of the tail beam (83) of the transition bracket to fix the wireless tilt sensor (78) of the tail beam. A set of valve seats (16) is welded to the cover plate in the middle of the top beam (61) to fix the wireless tilt sensor (62) of the top beam. A cable valve seat (28) is welded in front of the wireless tilt sensor (102) of the front connecting rod to fix the cable of the audible and visual alarm (63) and the personnel locator (64). A first valve plate (65) is welded in front of the audible and visual alarm (63) to fix the front beam single... To lock (69), weld a second valve plate (66) in front of the first valve plate (65) to fix the pan-tilt camera (6), weld a third valve plate (67) in front of the second valve plate (66) to fix the two-way lock (68), weld a set of valve seats (16) on the front beam (91) of the transition bracket near the rear of the support beam (93) to fix the radar ranging device (92), and weld a set of valve seats (16) on the cover plate surface of the side guard plate (110) of the transition bracket to fix the side guard wireless tilt sensor (111).

9. The hydraulic system for a high-resistance transition hydraulic support according to claim 8, characterized in that: The controller (4) is connected to the audible and visual alarm (63), personnel locator (64), pan-tilt camera (6), radar ranging device (92), coal discharge controller and multiple electro-hydraulic directional valves via cables. The controller (4) communicates wirelessly with multiple wireless tilt sensors via a wireless communication module.

10. A hydraulic support, characterized in that: The hydraulic support is equipped with a high-resistance transition hydraulic support hydraulic system as described in any one of claims 1-9.

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