Hydraulic support for supporting mining face

Abstract

The invention discloses a mining working face supporting hydraulic support which comprises a base, a telescopic piece, a mounting base, a top plate, a first side plate, a second side plate and a connecting assembly, the telescopic piece is arranged on the base and can do telescopic motion in the vertical direction, and the mounting base is arranged on the telescopic piece; the top plate is arranged on the mounting base, the top plate and the mounting base are arranged in a spaced mode in the vertical direction, the first side plate and the second side plate are oppositely arranged in the width direction of the mounting base in a spaced mode, the first side plate and the second side plate are arranged on the two sides of the mounting base correspondingly, and the first side plate and the second side plate can rotate in the horizontal position and the vertical position in the length direction of the mounting base; the connecting assembly is arranged on the mounting base in a penetrating mode and can move in the vertical direction relative to the mounting base, the upper end of the connecting assembly is connected with the top plate, and the lower end of the connecting assembly is connected with the first side plate and the second side plate. The mining working face supporting hydraulic support has the advantages of being simple in structure, high in safety performance and the like.

Description

Technical Field

[0001] The invention relates to the technical field of coal mining, and in particular to a hydraulic support for supporting a mining working face. Background Art

[0002] The hydraulic support can reliably and effectively support and control the roof of the working face, isolate the goaf, prevent gangue from entering the mining face and advancing the conveyor. It is used in conjunction with the coal mining machine to realize comprehensive mechanization of coal mining, solve the contradiction that roof management lags behind coal mining work in mechanized coal mining, further improve and enhance the efficiency of coal mining and transportation equipment, reduce the labor intensity of coal miners, and maximize the protection of the life safety of coal miners.

[0003] In the related technology, during the mining process, it is difficult to coordinate and cooperate between the supports, resulting in excessive distance between the hydraulic supports of adjacent working faces. Roof leakage will produce gangue, and the fallen gangue may injure the workers who are working, threatening the safety of the workers. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, an embodiment of the present invention provides a hydraulic support for supporting a mining face with high safety performance and good protection performance.

[0006] The mining face support hydraulic support according to the embodiment of the present invention comprises: a base; a telescopic member, which is arranged on the base and can be telescopically moved in the up-down direction; a mounting seat, which is arranged on the telescopic member so that the telescopic member drives the mounting seat to move in the up-down direction; a top plate, which is arranged on the mounting seat and is spaced apart from the mounting seat in the up-down direction, and the top plate is used to protect the goaf; a first side plate and a second side plate, which are spaced apart and relatively arranged in the width direction of the mounting seat and the first side plate and the second side plate are respectively arranged on both sides of the mounting seat, and the first side plate and the second side plate are rotatable in the horizontal position and the vertical position around the length direction of the mounting seat; A connecting assembly, wherein the connecting assembly is passed through the mounting seat and is movable in the up and down directions relative to the mounting seat, the upper end of the connecting assembly is connected to the top plate, and the lower end of the connecting assembly is connected to the first side plate and the second side plate. The hydraulic support has a first working state and a second working state. In the first working state, when the telescopic member is extended to drive the top plate to abut against the goaf, the top plate drives the connecting assembly to move downward to drive the first side plate and the second side plate to rotate to a horizontal position. In the second working state, the telescopic member is shortened to drive the top plate to separate from the goaf, and the connecting assembly moves upward to drive the first side plate and the second side plate to rotate to a vertical position.

[0007] The mining working face support hydraulic support of the embodiment of the present invention is provided with a roof plate, a connecting assembly, a first side plate and a second side plate. The roof plate can be in contact with the goaf in the tunnel for support, thereby reducing the occurrence of loose and broken coal seam roof leakage. The connecting assembly, the first side plate and the second side plate can increase the support area between two adjacent hydraulic supports, reduce the gap between adjacent supports, and reduce the risk of personal injury to workers under the hydraulic support due to roof falling and leakage of gangue.

[0008] In some embodiments, the mining working face support hydraulic support also includes a third side plate, which is arranged at one end of the mounting seat and can be rotated relative to the mounting seat around the width direction of the mounting seat in the horizontal position and the vertical position, so that when the top plate is against the goaf, the third side plate rotates to the horizontal position.

[0009] In some embodiments, the mining working face support hydraulic support also includes a support rod, which is passed through the mounting seat and can be moved in the up and down directions relative to the mounting seat; a sleeve, which is arranged on the mounting seat and the support rod is passed through the sleeve, and the support rod can be moved in the up and down directions relative to the sleeve; a first elastic member, the first elastic member is arranged between the sleeve and the top plate and the two ends of the first elastic member are respectively connected to the sleeve and the top plate, the first elastic member is passed through the support rod, and the first elastic member has an elastic force to drive the top plate. In the first working state, the top plate is against the goaf to make the top plate move downward, so that the top plate drives the first elastic member to compress, and in the second working state, the top plate is separated from the goaf, so that the first elastic member drives the top plate to move upward.

[0010] In some embodiments, the shell is arranged at the lower end of the mounting seat and is connected to the mounting seat; the sliding rod extends in the up-down direction and the upper end of the sliding rod is connected to the top plate, and the lower end of the sliding rod is passed through the shell; the connecting piece is arranged in the shell and cooperates with the sliding rod so that when the sliding rod moves downward, the connecting piece moves upward, or when the sliding rod moves upward, the connecting piece moves downward; a first support rod and a second support rod, the first support rod and the second support rod are arranged opposite to each other in the width direction of the mounting seat, one end of the first support rod is passed through the shell and cooperates with the connecting piece, the other end of the first support rod passes through the outside of the shell and abuts against the lower end surface of the first side plate, and one end of the second support rod is passed through the shell The second support rod is arranged inside the housing and cooperates with the connecting piece, the other end of the second support rod passes through the housing and abuts against the lower end surface of the second side plate. In the first working state, the telescopic member drives the top plate to abut against the goaf, the sliding rod moves downward to drive the connecting piece to move upward, and the connecting piece drives the first support rod and the second support rod to move in the direction away from the mounting seat so that the first side plate and the second side plate are in a horizontal position. In the second working state, the telescopic member drives the top plate to disengage from the goaf, the top plate can drive the sliding rod to move upward to drive the connecting piece to move downward, and the connecting piece drives the first support rod and the second support rod to move in the direction adjacent to the mounting seat so that the first side plate and the second side plate are in a vertical position.

[0011] In some embodiments, a first matching portion is provided at the upper end of the sliding rod, and a second matching portion is provided at the lower end surface of the top plate, one of the first matching portion and the second matching portion is a sphere, and the other of the first matching portion and the second matching portion is a ball seat, and the first matching portion and the second matching portion can be rotatably matched.

[0012] In some embodiments, the connecting assembly also includes a transmission member disposed in the shell, and the transmission member includes a first gear, a second gear, a rotating shaft and a first rack. The rotating shaft extends along the length direction of the mounting seat and is rotatably disposed in the shell. The first gear and the second gear are both passed through the rotating shaft and are spaced relative to each other along the width direction of the mounting seat. The first rack extends in the up and down directions and is meshed with the first gear. The first rack is connected to the connecting member, and a second rack is provided at the lower end of the sliding rod. The second gear is meshed with the second rack, so that the connecting member and the sliding rod are connected through the transmission member.

[0013] In some embodiments, the connecting assembly further comprises a limiting rod disposed in the shell, the limiting rod extending in the up-down direction and connected to the shell, the connecting member being passed through the limiting rod and movable in the up-down direction relative to the limiting rod.

[0014] In some embodiments, the connecting member is provided with a first slide groove and a second slide groove extending in the up-down direction, the first slide groove and the second slide groove are arranged opposite to each other in the width direction of the mounting seat, the first slide groove extends from top to bottom and is inclined from the inside of the connecting member toward the outside of the connecting member, the second slide groove extends from top to bottom and is inclined from the inside of the connecting member toward the outside of the connecting member, one end of the first support rod is arranged in the first slide groove and slides in the first slide groove along the extension direction of the first slide groove, and one end of the second support rod is arranged in the second slide groove and slides in the second slide groove along the extension direction of the second slide groove.

[0015] In some embodiments, a mounting cavity is provided in the base, and the hydraulic support further comprises: a driving member, the driving member extends in the up-down direction and the upper end of the driving member is provided at the lower end of the mounting seat and is connected to the mounting seat, so that the mounting seat drives the driving member to move in the up-down direction, and the lower end of the driving member is passed through the base and is located in the mounting cavity; a first rod and a second rod, the first rod and the second rod are arranged at intervals along the length direction of the mounting seat, the first rod and the second rod are rotatably provided in the mounting cavity around the width direction of the mounting seat and both cooperate with the lower end of the driving member, and in the first working state, the mounting seat The driving member is driven to move upward, and the driving member drives the first rod and the second rod to be received in the mounting cavity. In the second working state, the mounting seat drives the driving member to move downward, and the driving member drives the other end of the first rod and the other end of the second rod to extend out of the mounting cavity and the first rod and the second rod are supported on the ground; a first rotating wheel and a second rotating wheel, the first rotating wheel and the second rotating wheel are respectively rotatably arranged on the other end of the first rod and the other end of the second rod, so that in the second working state, the first rotating wheel and the second rotating wheel are respectively supported on the ground by the first rod and the second rod.

[0016] In some embodiments, the driving member includes: a third rack, the third rack is arranged below the mounting seat and connected to the mounting seat, the lower end of the third rack is inserted into the base; a third gear, the third gear is rotatably arranged in the mounting cavity, the third rack and the third gear are meshed, so that when the mounting seat moves up and down, the third rack drives the third gear to rotate; a first connecting rope, one end of the first connecting rope is wound around the third gear, so that when the third gear rotates, the first connecting rope is wound around the third gear; a threaded rod, the threaded rod extends along the width direction of the mounting seat and is rotatably arranged in the mounting cavity, the other end of the first connecting rope is wound around one end of the threaded rod, and the first connecting rope has a first driving force to pull the threaded rod to rotate The tensioning force is such that when the third rack moves downward, the first connecting rope is wound around the third gear, and the third gear drives the threaded rod to rotate forward through the first connecting rope; a slide seat, the slide seat is passed through the threaded rod and threadedly cooperates with the threaded rod, so that the slide seat can move on the threaded rod along the extension direction of the threaded rod; a second connecting rope, one end of the second connecting rope is arranged on the slide seat, and the other end of the second connecting rope is arranged on the first rod and the second rod, and the second connecting rope has a second tensioning force to pull the first rod and the second rod to rotate; a second elastic member, the second elastic member is arranged on the threaded rod and the two ends of the second elastic member are respectively connected to the threaded rod and the base, and the second elastic member has an elastic force to drive the threaded rod to reverse. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of a hydraulic support for supporting a mining working face according to an embodiment of the present invention.

[0018] Figure 2 It is a top view of a hydraulic support for supporting a mining working face according to an embodiment of the present invention.

[0019] Figure 3 It is a structural schematic diagram of a connection assembly of a hydraulic support for supporting a mining working face according to an embodiment of the present invention.

[0020] Figure 4 It is a schematic diagram of the installation of the top plate of the hydraulic support for supporting the mining working face according to an embodiment of the present invention.

[0021] Figure 5 It is a structural schematic diagram of a base of a hydraulic support for supporting a mining working face according to an embodiment of the present invention.

[0022] Figure 6 It is a top view of the base of the hydraulic support for supporting a mining working face according to an embodiment of the present invention.

[0023] Mining face support hydraulic support 100;

[0024] Base 1; first shell 101; second shell 102;

[0025] Telescopic member 2;

[0026] Mounting seat 3;

[0027] Top plate 4; second matching portion 41;

[0028] First side plate 5; second side plate 6; third side plate 8;

[0029] Connecting assembly 7; housing 71; sliding rod 72; first matching portion 721; connecting member 73; first sliding groove 731; first supporting rod 74; second supporting rod 75; transmission member 76; first gear 761; second gear 762; second rack 763; first rack 764; limiting rod 77;

[0030] Support rod 9; sleeve 10; first elastic member 11;

[0031] Driving member 12; third gear 122; first connecting rope 123; threaded rod 124; sliding seat 125; second connecting rope 126; first rod 13; second rod 14; first rotating wheel 15; second rotating wheel 16; hoop 17; fixing sleeve 18; fourth gear 19; mounting rod 20. DETAILED DESCRIPTION

[0032] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0033] The following describes a mining face supporting hydraulic support 100 according to an embodiment of the present invention with reference to the accompanying drawings.

[0034] like Figure 1-6 As shown, the mining face support hydraulic support 100 according to an embodiment of the present invention includes a base 1, a telescopic member 2, a mounting seat 3, a top plate 4, a first side plate 5, a second side plate 6 and a connecting assembly 7.

[0035] The telescopic member 2 is arranged on the base 1 and can be telescopically moved in the up and down directions. Figure 1-2 As shown, the telescopic member 2 is a hydraulic cylinder, the base 1 is the supporting foundation of the entire hydraulic support 100, the base of the telescopic member 2 is fixedly mounted on the base 1, and the telescopic member 2 telescopically moves in the up and down directions.

[0036] The mounting seat 3 is arranged on the telescopic member 2 so that the telescopic member 2 drives the mounting seat 3 to move in the up and down directions. Figure 1-2As shown, the mounting seat 3 has a top surface and a side surface, and the upper end of the telescopic member 2 is fixed to the top surface of the mounting seat 3, so that the telescopic member 2 drives the mounting seat 3 to move up and down.

[0037] The top plate 4 is arranged on the mounting seat 3 and is spaced apart from the mounting seat 3 in the vertical direction. The top plate 4 is used to protect the goaf. Figure 1 As shown, the top plate 4 is arranged above the top surface of the mounting seat 3 and is spaced apart from the top surface of the mounting seat 3. The telescopic member 2 can drive the top plate 4 to move upward through the mounting seat 3 so that the top plate 4 is against the goaf surface, so that the top plate 4 protects the goaf surface.

[0038] The first side plate 5 and the second side plate 6 are arranged along the width direction of the mounting seat 3 (eg Figure 1 The first side plate 5 and the second side plate 6 are respectively arranged on both sides of the mounting seat 3, and the first side plate 5 and the second side plate 6 are arranged around the length direction of the mounting seat 3 (as shown in the left and right directions). Figure 1 The front-to-rear direction shown in the figure) can be rotated in a horizontal position and a vertical position. Figure 1-2 As shown, the first side plate 5 is rotatably disposed on the left side of the mounting seat 3 , and the second side plate 6 is rotatably disposed on the right side of the mounting seat 3 .

[0039] The connecting component 7 is disposed on the mounting base 3 and is movable in the up-down direction relative to the mounting base 3. The upper end of the connecting component 7 is connected to the top plate 4, and the lower end of the connecting component 7 is connected to the first side plate 5 and the second side plate 6. Specifically, Figure 1-2 As shown, the connecting component 7 is passed through the mounting base 3, the upper end of the connecting component 7 is fixed on the top plate 4, and the lower end of the connecting component 7 cooperates with the first side plate 5 and the second side plate 6 to drive the first side plate 5 and the second side plate 6 to rotate between the vertical position and the horizontal position.

[0040] The hydraulic support 100 has a first working state and a second working state. In the first working state, the telescopic member 2 is extended to drive the top plate 4 to abut against the goaf, and the top plate 4 drives the connecting assembly 7 to move downward to drive the first side plate 5 and the second side plate 6 to rotate to a horizontal position. In the second working state, the telescopic member 2 is shortened to drive the top plate 4 to separate from the goaf, and the connecting assembly 7 moves upward to drive the first side plate 5 and the second side plate 6 to rotate to a vertical position. Specifically, Figure 1-2As shown, in the first working state, the telescopic member 2 is extended to drive the mounting seat 3 and the top plate 4 to move upward. When the top plate 4 contacts the goaf, the telescopic member 2 continues to extend. Since the top plate 4 is in contact with the goaf, the mounting seat 3 cannot drive the connecting assembly 7 to move upward. The connecting assembly 7 will move relative to the mounting seat 3, so that the top plate 4 moves downward relative to the mounting seat 3 to drive the connecting assembly 7 to move downward. The connecting assembly 7 drives the first side plate 5 and the second side plate 6 to rotate to a horizontal position, so that the first side plate 5 and the second side plate 6 are supported between two adjacent hydraulic supports 100 to increase the support area of ​​the hydraulic support 100. In the second working state, the telescopic member 2 is shortened to drive the top plate 4 to move downward. When the top plate 4 is separated from the goaf, the connecting assembly 7 moves upward, thereby driving the first side plate 5 and the second side plate 6 to rotate to a vertical position to retract the hydraulic support 100.

[0041] The mining face support hydraulic support 100 of the embodiment of the present invention is provided with a top plate 4, a telescopic member 2, a connecting assembly 7, a first side plate 5 and a second side plate 6. When the top plate 4 contacts and supports the goaf, the connecting assembly 7 will automatically drive the first side plate 5 and the second side plate 6 to extend to support the gap between adjacent hydraulic supports 100, thereby increasing the support area, reducing the difficulty of coordination between adjacent hydraulic supports 100 and the occurrence of gangue leakage from the top plate 4 due to loose and broken coal seams, preventing the falling gangue from possibly injuring the working personnel, and ensuring the safety of the personnel. In addition, due to the combination of the telescopic member 2 and the connecting assembly 7, the telescopic movement of the telescopic member 2 can synchronously drive the top plate 4, the first side plate 5 and the second side plate 6 to support the goaf, and there is no need to set driving members and monitoring members for the first side plate 5 and the second side plate 6, thereby reducing the processing and manufacturing cost of the mining face support hydraulic support 100.

[0042] In some embodiments, the mining face support hydraulic support 100 further includes a third side plate 8, which is disposed at one end of the mounting seat 3 and is rotatable relative to the mounting seat 3 in a horizontal position and a vertical position around the width direction of the mounting seat 3, so that when the top plate 4 abuts against the goaf, the third side plate 8 rotates to a horizontal position. Specifically, Figure 1-2 As shown, the third side plate 8 is rotatably disposed at the front end of the mounting seat 3. In the first working state, the third side plate 8 is in a horizontal position to support the top surface of the tunnel. In the second working state, the third side plate 8 is rotated to a vertical position to retract the third side plate 8.

[0043] In some embodiments, the mining working face support hydraulic support 100 also includes a hydraulic cylinder, which can perform telescopic movement in the front and rear directions. The rear end of the hydraulic cylinder is fixed on the side of the mounting seat 3, and the front end of the hydraulic cylinder is hinged under the third side plate 8. Thus, the third side plate 8 is driven by the hydraulic cylinder to rotate in the vertical and horizontal directions.

[0044] In some embodiments, the mining face support hydraulic support 100 further includes a support rod 9 , a sleeve 10 and a first elastic member 11 .

[0045] The support rod 9 is disposed on the mounting seat 3 and is movable in the up and down directions relative to the mounting seat 3. Figure 1 and 2 As shown, there are multiple support rods 9, all of which are vertical rods and are arranged at intervals along the circumference of the top plate 4. The upper ends of the support rods 9 are fixedly connected to the top plate 4, and the lower ends of the support rods 9 are passed through the mounting seat 3 and move in the up and down directions on the mounting seat 3.

[0046] The sleeve 10 is arranged on the mounting seat 3 and the support rod 9 is passed through the sleeve 10. The support rod 9 can move in the up and down direction relative to the sleeve 10. Specifically, Figure 4 As shown, the sleeve 10 is fixedly mounted on the top surface of the mounting seat 3 and the lower end of the support rod 9 passes through the sleeve 10 and the mounting seat 3 and can move in the up and down directions.

[0047] The first elastic member 11 is disposed between the sleeve 10 and the top plate 4, and the two ends of the first elastic member 11 are connected to the sleeve 10 and the top plate 4 respectively. The first elastic member 11 is passed through the support rod 9. The first elastic member 11 has an elastic force to drive the top plate 4. In the first working state, the top plate 4 is against the goaf surface to make the top plate 4 move downward, so that the top plate 4 drives the first elastic member 11 to compress. In the second working state, the top plate 4 is separated from the goaf surface, so that the first elastic member 11 drives the top plate 4 to move upward. Specifically, as Figure 1 and Figure 4 As shown, the first elastic member 11 is a compression spring, the first elastic member 11 is passed through the support rod 9, the lower end of the first elastic member 11 is fixed on the sleeve 10, and the upper end of the first elastic member 11 is fixed on the top plate 4. In the first working state, the first elastic member 11 is in a compressed state to drive the top plate 4 to move upward. In the second working state, due to the extension and retraction of the telescopic member 2, the top plate 4 is driven to move downward, and the first elastic member 11 drives the top plate 4 to move upward, thereby driving the connecting assembly 7 to move upward.

[0048] In some embodiments, the connection assembly 7 includes a housing 71 , a sliding rod 72 , a connecting member 73 , a first support rod 74 , and a second support rod 75 .

[0049] The housing 71 is disposed at the lower end of the mounting base 3 and is connected to the mounting base 3. Specifically, Figure 1 and Figure 3 As shown, the housing 71 is generally rectangular and is fixed to the lower end of the mounting base 3 .

[0050] The slide bar 72 extends in the up-down direction and the upper end of the slide bar 72 is connected to the top plate 4, and the lower end of the slide bar 72 is inserted into the housing 71. Figure 3As shown, the slide rod 72 is a vertical rod extending in the up-down direction. The slide rod 72 is located below the top plate 4 and the upper end of the slide rod is connected to the top plate 4 . The lower end of the slide rod 72 is inserted into the shell 71 .

[0051] The connecting member 73 is disposed in the housing 71 and cooperates with the slide bar 72 so that when the slide bar 72 moves downward, the connecting member 73 moves upward, or when the slide bar 72 moves upward, the connecting member 73 moves downward. Figure 3 As shown, the connecting member 73 can be a trapezoidal block and cooperate with the slide rod 72. When the top plate 4 drives the slide rod 72 to move downward, the slide rod 72 can drive the connecting member 73 to move upward. When the top plate 4 drives the slide rod 72 to move upward, the slide rod 72 can drive the connecting member 73 to move downward.

[0052] The first support rod 74 and the second support rod 75 are arranged opposite to each other in the width direction of the mounting seat 3. One end of the first support rod 74 is inserted into the shell 71 and cooperates with the connecting piece 73. The other end of the first support rod 74 passes through the shell 71 and abuts against the lower end surface of the first side plate 5. One end of the second support rod 75 is inserted into the shell 71 and cooperates with the connecting piece 73. The other end of the second support rod 75 passes through the shell 71 and abuts against the lower end surface of the second side plate 6. In the first working state, the telescopic member 2 drives the top plate 4 to abut against the goaf, and the sliding rod 72 The downward movement drives the connecting member 73 to move upward, and the connecting member 73 drives the first support rod 74 and the second support rod 75 to move in the direction away from the mounting seat 3, so that the first side plate 5 and the second side plate 6 are in a horizontal position. In the second working state, the telescopic member 2 drives the top plate 4 to separate from the goaf, and the top plate 4 can drive the sliding rod 72 to move upward to drive the connecting member 73 to move downward, and the connecting member 73 drives the first support rod 74 and the second support rod 75 to move in the direction adjacent to the mounting seat 3, so that the first side plate 5 and the second side plate 6 are in a vertical position.

[0053] Specifically, Figure 3 As shown, the first support rod 74 and the second support rod 75 are arranged on the left and right sides of the shell 71 along the left and right directions, one end of the first support rod 74 and one end of the second support rod 75 are both penetrated into the shell 71 and cooperate with the connecting piece 73, the other end of the first support rod 74 and the other end of the second support rod 75 are both extended out of the shell 71, and the other end of the first support rod 74 is abutted against the first side plate 5, and the other end of the second support rod 75 is abutted against the second side plate 6. Therefore, in the first working state, the first support rod 74 and the second support rod 75 respectively drive the first side plate 5 and the second side plate 6 to rotate to a horizontal state, and in the second working state, the first support rod 74 and the second support rod 75 respectively drive the first side plate 5 and the second side plate 6 to rotate to a vertical state.

[0054] In some embodiments, the upper end of the slide bar 72 is provided with a first matching portion 721, the lower end surface of the top plate 4 is provided with a second matching portion 41, one of the first matching portion 721 and the second matching portion 41 is a sphere, the other of the first matching portion 721 and the second matching portion 41 is a ball seat, and the first matching portion 721 and the second matching portion 41 are rotatably matched. Specifically, as Figure 4 As shown, the slide rod 72 is a vertical rod and the lower end of the support rod 9 is passed through the mounting seat 3 and moves up and down on the mounting seat 3. The setting of the first matching part 721 and the second matching part 41 can be set according to actual conditions. For example, the first matching part 721 can be a sphere, the second matching part 41 is a ball seat, or the first matching part 721 is a ball seat, and the second matching part 41 is a sphere. Therefore, through the cooperation of the first matching part 721 and the second matching part 41, after the top plate 4 contacts and supports the goaf, the ball rotates in the ball seat according to the slope of the goaf, thereby improving the adaptability of the top plate 4.

[0055] It should be noted that the sleeve 10 and the first elastic member 11 can also be installed on the slide rod 72, thereby improving the stability of the support of the top plate 4.

[0056] In some embodiments, the connecting assembly 7 further includes a transmission member 76 disposed in the housing 71, the transmission member 76 includes a first gear 761, a second gear 762, a rotating shaft (not shown in the figure) and a first rack 764, the rotating shaft extends along the length direction of the mounting seat 3 and is rotatably disposed in the housing 71, the first gear 761 and the second gear 762 are both passed through the rotating shaft and are spaced and arranged opposite to each other along the width direction of the mounting seat 3, the first rack 764 extends in the up-down direction and meshes with the first gear 761, the first rack 764 is connected to the connecting member 73, the lower end of the sliding rod 72 is provided with a second rack 763, the second gear 762 meshes with the second rack 763, so that the connecting member 73 and the sliding rod 72 are connected through the transmission member 76. Specifically, as Figure 1As shown, the rotating shaft is a horizontal shaft and extends in the front-to-back direction. The first gear 761 and the second gear 762 are arranged on the rotating shaft at intervals in the front-to-back direction, so that the first gear 761 and the second gear 762 rotate synchronously through the rotating shaft. The lower end of the first rack 764 is fixed on the connecting member 73, and the upper end of the first rack 764 is meshed with the first gear 761. The second rack 763 is formed at the lower end of the sliding rod 72, and the second rack 763 is meshed with the second gear 762. In the first working state, the telescopic member 2 drives the top plate 4 to move upward. When the top plate 4 is in contact with the goaf, When they are against each other, the telescopic member 2 continues to move, and the top plate 4 moves downward relative to the mounting base 3 to drive the slide rod 72 to move downward, and the second rack 763 and the second gear 762 engage to drive the second gear 762 to rotate clockwise, and the second gear 762 drives the first gear 761 to rotate clockwise through the rotating shaft, and the first gear 761 drives the first rack 764 to move upward, thereby driving the connecting member 73 to move upward, thereby making the first support rod 74 and the second support rod 75 move outward to drive the first side plate 5 and the second side plate 6 to be in a horizontal state.

[0057] In the second working state, the telescopic member 2 drives the top plate 4 to move downward. When the pressure between the top plate 4 and the tunnel top gradually decreases, the telescopic member 2 continues to move, and the top plate 4 moves upward relative to the mounting seat 3 under the action of the first elastic member 11, so as to drive the slide rod 72 to move upward. The second rack 763 and the second gear 762 are engaged to drive the second gear 762 to rotate counterclockwise. The second gear 762 drives the first gear 761 to rotate counterclockwise through the rotating shaft. The first gear 761 drives the first rack 764 to move downward, thereby driving the connecting member 73 to move downward. As a result, the first support rod 74 and the second support rod 75 move inward to drive the first side plate 5 and the second side plate 6 to be in a vertical state.

[0058] In some embodiments, the connection assembly 7 further includes a limit rod 77 disposed in the housing 71, the limit rod 77 extends in the up-down direction and is connected to the housing 71, and the connection member 73 is passed through the limit rod 77 and is movable in the up-down direction relative to the limit rod 77. Figure 3 As shown, the limit rod 77 is a sliding rod 72 extending in the up and down directions. The limit rod 77 is arranged in the shell 71 and the upper and lower ends are respectively connected to the shell 71. The connecting member 73 is passed through the limit rod 77, thereby ensuring the stability of the connecting member 73 moving in the up and down directions through the limit rod 77.

[0059] In some embodiments, the connecting member 73 is provided with a first slide groove 731 and a second slide groove (not shown in the figure) extending in the up-down direction. The first slide groove 731 and the second slide groove are arranged opposite to each other in the width direction of the mounting seat 3. The first slide groove 731 extends from top to bottom and is inclined from the inside of the connecting member 73 toward the outside of the connecting member 73. The second slide groove extends from top to bottom and is inclined from the inside of the connecting member 73 toward the outside of the connecting member 73. One end of the first support rod 74 is arranged in the first slide groove 731 and slides in the first slide groove 731 along the extension direction of the first slide groove 731. One end of the second support rod 75 is arranged in the second slide groove and slides in the second slide groove along the extension direction of the second slide groove. Specifically, as Figure 3 As shown, the left and right surfaces of the connecting member 73 are provided with a first slide groove 731 and a second slide groove. The first slide groove 731 is arranged on the left end surface of the connecting member 73, and the second slide groove is arranged on the right end surface of the connecting member 73. The first slide groove 731 extends from top to bottom and is inclined from right to left, and the second slide groove extends from top to bottom and is inclined from left to right. The right end of the first support rod 74 is penetrated in the first slide groove 731 and can be moved in the first slide groove 731 and in the extension direction of the first slide groove 731. The left end of the second support rod 75 is penetrated in the second slide groove and can be moved in the second slide groove and in the extension direction of the second slide groove. Therefore, when the connecting member 73 moves up and down, the first slide groove 731 can push the first support rod 74 to move in the left and right direction, and the second slide groove can push the second support rod 75 to move in the left and right direction.

[0060] In some embodiments, a slider can be set at the left end of the first support rod 74 and the right end of the second support rod 75. The slider of the first support rod 74 is set in the first sliding groove 731, and the slider of the second support rod 75 is set in the second support rod 75. Thus, the sliding stability of the first support rod 74 and the second support rod 75 is ensured.

[0061] In some embodiments, a mounting cavity is provided in the base 1 , and the hydraulic support 100 further includes a driving member 12 , a first rod 13 , a second rod 14 , a first rotating wheel 15 and a second rotating wheel 16 .

[0062] The driving member 12 extends in the up-down direction and the upper end of the driving member 12 is arranged at the lower end of the mounting seat 3 and connected to the mounting seat 3, so that the mounting seat 3 drives the driving member 12 to move in the up-down direction, and the lower end of the driving member 12 is arranged in the mounting cavity of the base 1. Specifically, Figure 5-6 As shown, the driving member 12 is a vertical rod extending up and down, the upper end of the driving member 12 is fixed to the lower end surface of the mounting seat 3, and when the telescopic member 2 telescopes, it can drive the driving member 12 to move in the up and down directions, and the lower end of the driving member 12 is inserted into the base 1.

[0063] The first rod 13 and the second rod 14 are arranged at intervals along the length direction of the mounting seat 3. The first rod 13 and the second rod 14 are rotatably arranged in the mounting cavity around the width direction of the mounting seat 3 and are both matched with the lower end of the driving member 12. In the first working state, the mounting seat 3 drives the driving member 12 to move upward, and the driving member 12 drives the first rod 13 and the second rod 14 to be stored in the mounting cavity. In the second working state, the mounting seat 3 drives the driving member 12 to move downward, and the driving member 12 drives the other end of the first rod 13 and the other end of the second rod 14 to extend out of the mounting cavity and the first rod 13 and the second rod 14 are supported on the ground. Specifically, Figure 5-6 As shown, the first rod 13 and the second rod 14 are both horizontal rods and are spaced apart in the front-to-back direction. One end of the first rod 13 and one end of the second rod 14 are both matched with the lower end of the driving member 12. In the first working state, the telescopic member 2 is extended, and the first driving member 12 moves upward, so that the first rod 13 and the second rod 14 are rotated into the installation cavity of the base 1. In the second working state, the other end of the first rod 13 and the other end of the second rod 14 extend out of the installation cavity, so that the other end of the first rod 13 and the other end of the second rod 14 are supported on the ground, and the lower end surface of the base 1 is spaced apart from the ground.

[0064] The first rotating wheel 15 and the second rotating wheel 16 are rotatably disposed on the other end of the first rod 13 and the other end of the second rod 14, respectively, so that in the second working state, the first rotating wheel 15 and the second rotating wheel 16 are supported on the ground by the first rod 13 and the second rod 14, respectively. Figure 5-6 As shown, the first rotating wheel 15 and the second rotating wheel 16 are rotatably provided on the other end of the first rod 13 and the other end of the second rod 14, respectively. In the first working state, the first rotating wheel 15 and the second rotating wheel 16 are respectively received in the installation cavity along with the first rod 13 and the second rod 14. In the second working state, the first rotating wheel 15 and the second rotating wheel 16 are against the ground, thereby facilitating the movement of the hydraulic support 100.

[0065] The driving member 12 includes a third rack (not shown in the figure), a third gear 122, a first connecting rope 123, a threaded rod 124, a sliding seat 125, a second connecting rope 126 and a second elastic member (not shown in the figure).

[0066] The third rack is arranged below the mounting base 3 and connected to the mounting base 3, and the lower end of the third rack is passed through the base 1. Specifically, Figure 5-6 As shown, the third rack extends in the up-down direction and the upper end of the third rack is fixed to the lower end of the mounting seat 3 , and the lower end of the third rack is inserted into the mounting cavity of the base 1 .

[0067] The third gear 122 is rotatably disposed in the mounting cavity, and the third rack is meshed with the third gear 122, so that when the connecting member 73 moves up and down, the third rack drives the third gear 122 to rotate. Figure 5-6 As shown, the third gear 122 is rotatably disposed in the mounting cavity. When the telescopic member 2 moves along the telescopic direction, the third gear 122 can be driven to move up and down. The third rack and the third gear 122 are meshed to drive the third gear 122 to rotate.

[0068] One end of the first connecting rope 123 is wound around the third gear 122, so that when the third gear 122 rotates, the first connecting rope 123 is wound around the third gear 122. Figure 5-6 As shown, the upper end of the first connecting rope 123 is wound around the third gear 122. When the third gear 122 rotates forward, the first connecting rope 123 can be wound around the third gear 122. When the third gear 122 rotates reversely, the first connecting rope 123 can be loosened from the third gear 122.

[0069] The threaded rod 124 extends along the width direction of the mounting seat 3 and is rotatably arranged in the mounting cavity. The other end of the first connecting rope 123 is wound around one end of the threaded rod 124. The first connecting rope 123 has a first tensioning force for pulling the threaded rod 124 to rotate, so that when the third rack moves downward, the first connecting rope 123 is wound around the third gear 122, and the third gear 122 drives the threaded rod 124 to rotate forwardly through the first connecting rope 123. Specifically, Figure 5-6 As shown, the threaded rod 124 extends in the left-right direction and is rotatably arranged in the installation cavity, the lower end of the connecting rope is wrapped around the threaded rod 124, and the first connecting rope 123 is always in a taut state. When the third gear 122 rotates forward, the first connecting rope 123 is wrapped around the third gear 122, so that the connecting rope pulls the threaded rod 124 to rotate forward. When the third gear 122 reverses, the third gear 122 reverses to loosen the first connecting rope 123. At this time, the threaded rod 124 reverses to wrap the first connecting rope 123 around the threaded rod 124.

[0070] The slide 125 is inserted into the threaded rod 124 and threadably engaged with the threaded rod 124, so that the slide 125 can move on the threaded rod 124 along the extending direction of the threaded rod 124. Figure 5-6 As shown, the slide 125 is provided with a threaded through hole that penetrates the slide 125 in the left-right direction. The threaded rod 124 is inserted into the threaded through hole and cooperates with the threaded rod 124 to drive the slide 125 to move in the left-right direction when the threaded rod 124 rotates forward or reversely.

[0071] One end of the second connecting rope 126 is arranged on the sliding seat 125, and the other end of the second connecting rope 126 is arranged on the first rod 13 and the second rod 14. The second connecting rope 126 has a second tensioning force to pull the first rod 13 and the second rod 14 to rotate. Figure 5-6As shown, one end of the second connecting rope 126 is tied to the slide 125, and the other end of the second connecting rope 126 is tied to the first rod 13 and the second rod 14. Therefore, when the slide 125 moves back and forth, it can drive the first rod 13 and the second rod 14 to rotate, so that the first rod 13 and the second rod 14 are rotated to the outside of the installation cavity or retracted into the installation cavity.

[0072] The second elastic member is disposed on the threaded rod 124 and the two ends of the second elastic member are respectively connected to the threaded rod 124 and the base 1. The second elastic member has an elastic force that drives the threaded rod 124 to reverse. Figure 5-6 As shown, the second elastic member is a torsion spring and is passed through the threaded rod 124. The two ends of the second elastic member are fixedly mounted on the threaded rod 124 and the base 1 respectively, and the second elastic member has an elastic force for driving the threaded rod 124 to reverse. When the third gear 122 reverses, the tension on the first connecting rope 123 decreases, and the second elastic member will drive the threaded rod 124 to reverse, so that the first connecting rope 123 is wound around the threaded rod 124 to ensure the tension on the first connecting rope 123, and drive the slide 125 to reset.

[0073] In some embodiments, Figure 6 As shown, the driving member 12 also includes a mounting rod 20, which extends in the left-right direction and is arranged in the mounting cavity. The slide 125 is passed through the mounting rod 20 and can slide on the mounting rod 20. Therefore, the slide 125 is limited by the mounting rod 20 to ensure that the slide 125 only moves in the left-right direction, preventing the slide 125 from rotating on the threaded rod 124.

[0074] In some embodiments, the first rod 13 and the second rod 14 can be connected to the base 1 through a torsion spring (not shown in the figure), and the torsion spring has a torsional force to drive the first rod 13 and the second rod 14 to rotate outside the installation cavity. When the slide 125 is away from the middle of the threaded rod 125, the slide 125 receives the first rod 13 and the second rod 14 in the installation cavity through the second connecting rope 126. When the slide 125 moves toward the middle of the threaded rod 125, the torsion spring will drive the first rod 13 and the second rod 14 to rotate outside the installation cavity.

[0075] The following is based on the attached Figure 1-6 The mining face supporting hydraulic support 100 according to the embodiment of the present invention is specifically described.

[0076] Embodiment 1:

[0077] Reference Figure 1 - Figure 6 A hydraulic support 100 for supporting a mining face includes a rectangular base 1, the interior of the base 1 is a hollow structure, and a counterweight is installed in the base 1 to improve the stability of the base 1. Two symmetrically arranged telescopic members 2 are fixedly installed on the base 1. For details, refer to Figure 1and Figure 2 The base 1 has a first shell 101 extending in the left-right direction and a second shell 102 extending in the up-down direction with an open upper end. The first shell 101 is connected to the second shell 102, and clamps 17 for clamping the telescopic member 2 are fixedly installed on both sides of the second shell 102.

[0078] A flexible baffle is installed on the inner circumferential surface of the opening of the second shell 102 to reduce the entry of coal.

[0079] It should be supplemented that the hoop 17 is composed of two hoop plates which are rotatably connected to the second shell 102 and are mirror-symmetrical. The two hoop plates are tightened by bolts to fix the telescopic member 2.

[0080] The mounting base 3 is fixedly mounted on the output end of the symmetrical telescopic member 2, see Figure 1 and Figure 2 A third side plate 8 is rotatably mounted on one side of the mounting seat 3, and a hydraulic cylinder is rotatably mounted below the mounting seat 3, and the output end of the hydraulic cylinder is rotatably connected to the third side plate 8; under the action of the hydraulic cylinder, the third side plate 8 can be driven to rotate 180° along the side edge of the mounting seat 3 to open and close, so as to support the goaf. A top plate 4 is rotatably mounted on the mounting seat 3 through a connecting portion; a first side plate 5 and a second side plate 6 are rotatably mounted on both sides of the mounting seat 3, and the first side plate 5 and the second side plate 6 increase the support area, reduce the gap between adjacent supports, and reduce the risk of personal injury to workers under the hydraulic support 100 due to the falling of the top plate 4 and the leakage of gangue.

[0081] See also Figure 1 and Figure 2 and Figure 4 , the connection part in this scheme is further optimized.

[0082] The connecting part includes a sleeve 10 fixedly installed in the mounting seat 3, a slide rod 72 is slidably installed in the sleeve 10, a ball is fixedly installed on the upper end of the slide rod 72, and a ball seat matched with the ball is fixedly installed on the lower surface of the top plate 4.

[0083] When the roof 4 contacts and supports the goaf above, the ball rotates in the ball seat according to the slope of the goaf, thereby improving the self-adaptability of the roof 4.

[0084] A shell 71 is fixedly installed below the mounting base 3, and a first support rod 74 and a second support rod 75 are slidably installed in the shell 71. One end of the first slide rod 72 and one end of the second slide rod 72 both penetrate the shell 71 and are rotatably installed with rollers, which abut against the lower surfaces of the first side plate 5 and the second side plate 6.

[0085] See also Figure 1 and Figure 2 and Figure 3 , the shell 71 in this solution is further optimized.

[0086] A gear roller is rotatably installed in the shell 71 (the gear roller can be the first gear 761 and the second gear 762), one side of the gear roller is meshed with a first rack 764, a connecting piece 73 is fixedly installed below the first rack 764, and a limiting rod 77 that passes through the connecting piece 73 is fixedly installed at the bottom of the shell 71; the first support rod 74 and the second support rod 75 are located at one end of the shell 71 and are slidably installed on both sides of the connecting piece 73 respectively; the sliding rod 72 located above the shell 71 is provided with teeth (which can be the second rack 763) that are compatible with the gear roller.

[0087] When the roof 4 contacts and supports the goaf above, since a slide bar 72 in the housing 71 is provided with teeth, the slide bar 72 is pressed downward to drive the gear roller to rotate, and the rotating gear roller drives the first rack 764 to slide, so that the first rack 764 moves in the opposite direction of the slide bar 72.

[0088] When the first rack 764 is raised, the connecting member 73 pushes the first support rod 74 and the second support rod 75 on both sides out of the housing 71 , thereby supporting the first side plate 5 and the second side plate 6 .

[0089] The connecting member 73 as a whole has an equilateral trapezoidal structure that is narrow at the top and wide at the bottom. A first sloped slide groove 731 and a second sloped slide groove are respectively provided on both sides of the connecting member 73. Connecting balls are fixedly installed at the ends of the first support rod 74 and the second support rod 75 and slide in the first slide groove 731 and the second slide groove. Therefore, when the connecting member 73 rises, the first support rod 74 and the second support rod 75 can be pushed out.

[0090] See also Figure 4 Furthermore, two ends of the first elastic member 11 are fixedly connected to the sleeve 10 and the ball seat 12 respectively.

[0091] When the roof 4 contacts and supports the goaf above, the first elastic member 11 contracts under force, applying a pre-tightening force to the roof 4, thereby reducing the occurrence of loose and broken coal seams and leakage of gangue from the roof 4, as well as the overhang between the hydraulic support 100 and the coal seam, thereby ensuring the supporting force and supporting effect of the hydraulic support 100.

[0092] In general, in the support of the coal mining working face, the telescopic member 2 drives the mounting seat 3 and the top plate 4 to lift upward until the top plate 4 contacts the upper goaf surface, the spring is forced to contract, and a pre-tightening force is applied to the top plate 4, which reduces the occurrence of loose and broken coal seams and the leakage of the top plate 4. The hydraulic cylinder pushes the third side plate 8 to support the goaf on the side, which reduces the occurrence of loose and broken coal seams and the leakage of the top plate 4.

[0093] When the top plate 4 contacts and supports the goaf above, since a slide bar 72 located in the shell 71 is provided with teeth, the slide bar 72 is pressed downward to drive the gear roller to rotate, and the rotating gear roller drives the first rack 764 to slide, so that the first rack 764 moves in the opposite direction of the slide bar 72; when the first rack 764 rises, the connecting piece 73 pushes the first support rod 74 and the second support rod 75 on both sides out of the shell 71, thereby supporting the first side plate 5 and the second side plate 6, increasing the support area, reducing the gap between adjacent supports, and reducing the risk of personal injury to workers under the hydraulic support 100 due to the falling of the top plate 4 and the leakage of gangue.

[0094] It should be added that in this solution, it is also necessary to install mobile equipment, such as a pneumatic monorail crane of model DQD15, which can be used as a mobile equipment to move the device while transporting coal.

[0095] Embodiment 2:

[0096] See also Figure 1 - Figure 6 , which is basically the same as Example 1, is further optimized on the basis of Example 1, and specifically discloses an implementation plan for moving the device.

[0097] See also Figure 5 and Figure 6 The mining working face support hydraulic support 100 in this embodiment also includes: an installation cavity is symmetrically opened below the base 1, and a first rod 13 and a second rod 14 are rotatably installed on the inner side wall of the groove of the installation cavity, and a first rotating wheel 15 and a second rotating wheel 16 are rotatably installed on the other end of the first rod 13 and the other end of the second rod 14.

[0098] As the mining face advances, the supports in the drift need to move forward, so a pneumatic monorail crane is needed to move the supports at the front end of the drift to the tail end of the column. Therefore, by installing a first rotary wheel 15 and a second rotary wheel 16 under the base 1, part of the pressure of the pneumatic monorail crane is shared, so that the supports can move along the ground, thereby improving the safety performance of the pneumatic monorail crane operation.

[0099] See also Figure 5 and Figure 6A third rack is fixedly installed below the housing 71, and two third gears 122 meshing with the third rack are symmetrically installed inside the housing 71, and a first connecting rope 123 is wound around the third gear 122; a pair of shaft seats are fixedly installed on the top wall of the groove in the installation cavity, and a threaded rod 124 is rotatably connected between the pair of shaft seats, and one end of the threaded rod 124 passes through the shaft seat and is installed with a fourth gear 19. Specifically, a second elastic member is arranged between the fourth gear and the threaded rod 124. When the third rack releases the constraint on the third gear 122, the second elastic member resets and drives the threaded rod 124 to rotate in the opposite direction, and the first rotating wheel 15 and the second rotating wheel 16 are pulled back into the installation cavity, so that the base 1 is placed on the ground. The fourth gear 19 is wound and connected with the first connecting rope 123; a slide seat 125 is threadedly connected to the threaded rod 124, and the slide seat 125 is rotatably connected with the first rod 13 and the second rod 14, and the installation rod 20 is rotatably connected between the slide seat 125 and the first rod 13 and the second rod 14.

[0100] When the bracket in the slot needs to be moved forward, the front bracket needs to return to its initial state. Therefore, when the telescopic member 2 pulls back the mounting seat 3 and the top plate 4, the downwardly pulled mounting seat 3 inserts the third rack into the base 1, and the third gear 122 is rotated by force and pulls the first connecting rope 123. The first connecting rope 123 pulls the fourth gear 19 to rotate, and the fourth gear 19 drives the coaxial threaded rod 124 to rotate. It should be noted that a linear rail for constraining the rotation degree of the slide 125 is also fixedly installed on one side of the threaded rod 124, so that the slide 125 can only move linearly on the threaded rod 124. As the slide 125 approaches the first rod 13 and the second rod 14, the first rod 13 and the second rod 14 are pushed to rotate through the mounting rod 20, and the first rotating wheel 15 and the second rotating wheel 16 are pushed out of the mounting cavity and contact the ground, so that the bracket can move along the ground.

[0101] See also Figure 5 and Figure 6 At least one fixing sleeve 18 is fixedly installed on the inner wall of the shell 71 , and the first connecting rope 123 is slidably installed in the fixing sleeve 18 .

[0102] The number of the fixing sleeves 18 is 3-5, and they are used to constrain the moving direction of the first connecting rope 123 and to transmit force.

[0103] Here, I will once again give an overall description of the working process of the entire article:

[0104] In supporting the coal mine working face, the telescopic member 2 drives the mounting seat 3 and the top plate 4 to lift upward until the top plate 4 contacts the upper goaf surface, and the first elastic member 11 contracts under the force, applying a pre-tightening force to the top plate 4, thereby reducing the occurrence of loose and broken coal seam roof 4 leakage, and the hydraulic cylinder pushes the third side plate 8 to support the side goaf, thereby reducing the occurrence of loose and broken coal seam roof 4 leakage.

[0105] When the top plate 4 contacts and supports the goaf above, since a slide bar 72 located in the shell 71 is provided with teeth, the slide bar 72 is pressed downward to drive the gear roller to rotate, and the rotating gear roller drives the first rack 764 to slide, so that the first rack 764 moves in the opposite direction of the slide bar 72; when the first rack 764 rises, the connecting piece 73 pushes the first support rod 74 and the second support rod 75 on both sides out of the shell 71, thereby supporting the first side plate 5 and the second side plate 6, increasing the support area, reducing the gap between adjacent supports, and reducing the risk of personal injury to workers under the hydraulic support 100 due to the falling of the top plate 4 and the leakage of gangue.

[0106] As the mining face advances, the supports in the drift need to move forward, so a pneumatic monorail crane is needed to move the supports at the front end of the drift to the tail end of the column. Therefore, by installing a first rotary wheel 15 and a second rotary wheel 16 under the base 1, part of the pressure of the pneumatic monorail crane is shared, so that the supports can move along the ground, thereby improving the safety performance of the pneumatic monorail crane operation.

[0107] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0108] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0109] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0110] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0111] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0112] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A hydraulic support for supporting a mining working face, characterized in that: include: Base; A telescopic member, the telescopic member is arranged on the base and can telescopically move in an up-and-down direction; A mounting seat, the mounting seat being arranged on the telescopic member so that the telescopic member drives the mounting seat to move in an up-and-down direction; A top plate, the top plate is arranged on the mounting seat and is spaced apart from the mounting seat in the up-down direction, and the top plate is used to protect the goaf; A first side plate and a second side plate, wherein the first side plate and the second side plate are arranged opposite to each other along the width direction of the mounting seat and the first side plate and the second side plate are respectively arranged on both sides of the mounting seat, and the first side plate and the second side plate are rotatable in a horizontal position and a vertical position around the length direction of the mounting seat; A connecting assembly, wherein the connecting assembly is passed through the mounting seat and is movable in the up and down directions relative to the mounting seat, the upper end of the connecting assembly is connected to the top plate, and the lower end of the connecting assembly is connected to the first side plate and the second side plate. The hydraulic support has a first working state and a second working state. In the first working state, when the telescopic member is extended to drive the top plate to abut against the goaf, the top plate drives the connecting assembly to move downward to drive the first side plate and the second side plate to rotate to a horizontal position. In the second working state, the telescopic member is shortened to drive the top plate to separate from the goaf, and the connecting assembly moves upward to drive the first side plate and the second side plate to rotate to a vertical position.

2. The mining face support hydraulic support according to claim 1, characterized in that: It also includes a third side plate, which is arranged at one end of the mounting seat and can be rotated relative to the mounting seat around the width direction of the mounting seat in the horizontal position and the vertical position, so that when the top plate abuts against the goaf, the third side plate rotates to the horizontal position.

3. The mining face support hydraulic support according to claim 1, characterized in that: Also includes: A support rod, the support rod is passed through the mounting seat and is movable in an up-down direction relative to the mounting seat; A sleeve, wherein the sleeve is arranged on the mounting seat and the support rod is passed through the sleeve, and the support rod is movable in an up-down direction relative to the sleeve; A first elastic member, wherein the first elastic member is arranged between the sleeve and the top plate and the two ends of the first elastic member are respectively connected to the sleeve and the top plate, the first elastic member is passed through the support rod, the first elastic member has an elastic force to drive the top plate, in the first working state, the top plate is abutted against the goaf to move the top plate downward, so that the top plate drives the first elastic member to compress, and in the second working state, the top plate is separated from the goaf, so that the first elastic member drives the top plate to move upward.

4. The mining face support hydraulic support according to claim 1, characterized in that: The connection component comprises: A shell, the shell being arranged at the lower end of the mounting seat and connected to the mounting seat; A slide bar, the slide bar extends in the up-down direction and the upper end of the slide bar is connected to the top plate, and the lower end of the slide bar is inserted into the housing; a connecting member, the connecting member being arranged in the housing and cooperating with the sliding rod so that when the sliding rod moves downward, the connecting member moves upward, or when the sliding rod moves upward, the connecting member moves downward; A first support rod and a second support rod, the first support rod and the second support rod are arranged opposite to each other along the width direction of the mounting seat, one end of the first support rod is inserted into the shell and cooperates with the connecting member, the other end of the first support rod passes through the shell and abuts against the lower end surface of the first side plate, one end of the second support rod is inserted into the shell and cooperates with the connecting member, the other end of the second support rod passes through the shell and abuts against the lower end surface of the second side plate, in the first working state, the telescopic member drives the top plate to abut against the goaf, the sliding rod moves downward to drive the connecting member to move upward, and the connecting member drives the first support rod and the second support rod to move in a direction away from the mounting seat so that the first side plate and the second side plate are in a horizontal position, in the second working state, the telescopic member drives the top plate to disengage from the goaf, the top plate can drive the sliding rod to move upward to drive the connecting member to move downward, and the connecting member drives the first support rod and the second support rod to move in a direction adjacent to the mounting seat so that the first side plate and the second side plate are in a vertical position.

5. The mining face support hydraulic support according to claim 4, characterized in that: A first matching portion is provided at the upper end of the slide rod, and a second matching portion is provided at the lower end surface of the top plate. One of the first matching portion and the second matching portion is a sphere, and the other of the first matching portion and the second matching portion is a ball seat. The first matching portion and the second matching portion can be rotatably matched.

6. The mining face support hydraulic support according to claim 4, characterized in that: The connecting assembly also includes a transmission member arranged in the shell, and the transmission member includes a first gear, a second gear, a rotating shaft and a first rack. The rotating shaft extends along the length direction of the mounting seat and is rotatably arranged in the shell. The first gear and the second gear are both passed through the rotating shaft and are arranged opposite to each other at intervals along the width direction of the mounting seat. The first rack extends in the up and down directions and meshes with the first gear. The first rack is connected to the connecting member, and a second rack is provided at the lower end of the sliding rod. The second gear meshes with the second rack, so that the connecting member and the sliding rod are connected through the transmission member.

7. The mining face support hydraulic support according to claim 5, characterized in that: The connecting assembly also includes a limiting rod arranged in the shell, the limiting rod extends in the up-down direction and is connected to the shell, and the connecting member is passed through the limiting rod and is movable in the up-down direction relative to the limiting rod.

8. The mining face support hydraulic support according to claim 5, characterized in that: The connecting member is provided with a first slide groove and a second slide groove extending in the up-down direction, the first slide groove and the second slide groove are arranged opposite to each other in the width direction of the mounting seat, the first slide groove extends from top to bottom and is inclined from the inside of the connecting member toward the outside of the connecting member, and the second slide groove extends from top to bottom and is inclined from the inside of the connecting member toward the outside of the connecting member. One end of the first support rod is disposed in the first slide groove and slides in the first slide groove along the extension direction of the first slide groove, and one end of the second support rod is disposed in the second slide groove and slides in the second slide groove along the extension direction of the second slide groove.

9. The mining face support hydraulic support according to claim 1, characterized in that: The base is provided with a mounting cavity. The hydraulic support further comprises: A driving member, the driving member extends in the up-down direction and the upper end of the driving member is connected to the mounting seat, so that the mounting seat drives the driving member to move in the up-down direction, and the lower end of the driving member is inserted into the mounting cavity; a first rod and a second rod, wherein the first rod and the second rod are spaced apart along the length direction of the mounting seat, the first rod and the second rod are rotatably arranged in the mounting cavity around the width direction of the mounting seat and both cooperate with the lower end of the driving member, in the first working state, the mounting seat drives the driving member to move upward, and the driving member drives the first rod and the second rod to be stored in the mounting cavity, and in the second working state, the mounting seat drives the driving member to move downward, and the driving member drives the other end of the first rod and the other end of the second rod to extend out of the mounting cavity, and the first rod and the second rod are supported on the ground; A first rotating wheel and a second rotating wheel, wherein the first rotating wheel and the second rotating wheel are rotatably disposed on the other end of the first rod and the other end of the second rod respectively, so that in the second working state, the first rotating wheel and the second rotating wheel are supported on the ground by the first rod and the second rod respectively.

10. The mining face support hydraulic support according to claim 9, characterized in that: The driving member comprises: a third rack, the third rack being arranged below the mounting seat and connected to the mounting seat, and the lower end of the third rack being passed through the base; a third gear, the third gear being rotatably disposed in the mounting cavity, the third rack being meshed with the third gear, so that when the mounting seat moves up and down, the third rack drives the third gear to rotate; a first connecting rope, one end of which is wound around the third gear, so that when the third gear rotates, the first connecting rope is wound around the third gear; a threaded rod, the threaded rod extending along the width direction of the mounting seat and rotatably disposed in the mounting cavity, the other end of the first connecting rope being wound around one end of the threaded rod, the first connecting rope having a first tensioning force for pulling the threaded rod to rotate, so that when the third rack moves downward, the first connecting rope is wound around the third gear, and the third gear drives the threaded rod to rotate forwardly through the first connecting rope; A slide seat, the slide seat is passed through the threaded rod and threadably matched with the threaded rod, so that the slide seat can move on the threaded rod along the extension direction of the threaded rod; a second connecting rope, one end of which is arranged on the sliding seat, the other end of which is arranged on the first rod and the second rod, and the second connecting rope has a second tensioning force for pulling the first rod and the second rod to rotate; The second elastic member is arranged on the threaded rod and two ends of the second elastic member are respectively connected to the threaded rod and the base, and the second elastic member has an elastic force for driving the threaded rod to reverse.

Images