Hydraulic support for coal mine

Abstract

The hydraulic support for the coal mine comprises a mounting frame, fixing plates are symmetrically and fixedly connected to the top of the mounting frame, a fixing seat is fixedly connected between the two fixing plates, connecting seats are symmetrically and fixedly connected to the top of the fixing seat, and a two-way lead screw is rotationally connected between the two connecting seats; according to the hydraulic support for the coal mine, the supporting plate, the supporting block, the rotating shaft, the wing plates and the hydraulic cylinder are arranged, so that the function of carrying out auxiliary supporting on the top of an underground coal face is achieved, the angles of the wing plates on the two sides can be adjusted when the wing plates are used, and the application effect of the hydraulic support is enhanced; by arranging a hand wheel, a two-way screw rod, a sliding plate, a connecting rod, a knob, a threaded rod, a sliding block, limiting teeth and an outer gear ring, the function of adjusting the height when the device is supported is achieved, the position of the two-way screw rod can be locked after adjustment is completed, the two-way screw rod is prevented from rotating reversely, and the safety effect of the device is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic support technical field, concretely is a hydraulic support for coal mine. BACKGROUND

[0002] Coal is the most important solid fuel, is by the flourishing plant of certain geologic age growth, gradually accumulates thick layer in the suitable geologic environment, and is buried in the water bottom or silt, forms through the long geologic age natural coalification. Coal mine is the area that human in the coal -rich mining area exploits coal resources. It mainly divides into two kinds: pit coal mine and open -pit coal mine. Hydraulic support will be used in the process of coal mining, it is a kind of equipment for the auxiliary support of the top of underground coal face.

[0003] The coal mine hydraulic support in prior art is usually of one-piece structure, the angle of the two side wing plates when supporting cannot be adjusted according to actual needs, so the device cannot be applied to the auxiliary support of the top of different underground coal faces, the applicability of the device is reduced, and the height when supporting cannot be adjusted, so the device is inconvenient to use. Therefore, we propose a hydraulic support for coal mine. SUMMARY

[0004] In view of the defects of the prior art, the utility model provides a hydraulic support for coal mine, solves the problems that the coal mine hydraulic support is usually of one-piece structure, the angle of the two side wing plates when supporting cannot be adjusted according to actual needs, so the device cannot be applied to the auxiliary support of the top of different underground coal faces, the applicability of the device is reduced, and the height when supporting cannot be adjusted.

[0005] To achieve the above purpose, the utility model realizes the following technical scheme:

[0006] A hydraulic support for coal mine, including the mount, the top of the mount is fixedly connected with the fixed plate, the fixed plate is fixedly connected with the fixed seat between two, the top of the fixed seat is fixedly connected with the connecting seat, the two connecting seats are rotatably connected with the two-way screw rod, the top of the fixed seat is slidably connected with the sliding plate, the sliding plate is threadedly connected with the two-way screw rod, the top of the sliding plate is rotatably connected with the connecting rod, the connecting plate is slidably connected with the fixed plate on one side, the top of the connecting plate is fixedly connected with the support plate, the connecting rod is rotatably connected with the support plate, the outer side of the support plate is fixedly connected with the support block, the two support blocks are rotatably connected with the rotating shaft, the outer side of the rotating shaft is fixedly connected with the wing plate, the connecting plate is rotatably connected with the hydraulic cylinder on one side, the output end of the hydraulic cylinder is rotatably connected with the wing plate, the wing plate can be driven to rotate by the hydraulic cylinder, so that the angle when using is adjusted, and the applicability is better.

[0007] Preferably, a limiting rod is symmetrically fixed and connected between the two connecting seats, and the sliding plate is in sliding connection with the limiting rod, and the movement of the sliding plate can be limited through the limiting rod.

[0008] Preferably, one end of the bidirectional screw rod is fixedly connected with a hand wheel, and the bidirectional screw rod is driven to rotate through the hand wheel.

[0009] Preferably, a sliding block is in sliding connection with the outer side of one of the connecting seats, one side of the sliding block is fixedly connected with a limiting tooth, the outer side of the bidirectional screw rod is fixedly connected with an external gear ring matched with the limiting tooth, the limiting tooth is driven to move and tightly abut against the external gear ring through the sliding block, so that the position of the bidirectional screw rod is locked, the bidirectional screw rod is prevented from being reversed, and the safety effect of the device is enhanced.

[0010] Preferably, the outer side of one of the connecting seats is fixedly connected with a fixed block, a threaded rod is in screw connection with the inside of the fixed block, the threaded rod is in rotary connection with the sliding block, one end of the threaded rod is fixedly connected with a knob, the threaded rod is driven to rotate through the knob, and the sliding block is driven to slide along the connecting seat through the rotation of the threaded rod.

[0011] Preferably, fixed rods are equidistantly fixed in the inside of the connecting plate, limiting blocks are in sliding connection with the outer side of the fixed rods, and the limiting blocks are fixedly connected with the fixed plate, so that the movement of the connecting plate can be limited through the fixed rods and the limiting blocks, and deviation is prevented.

[0012] The utility model provides a kind of hydraulic support for coal mine.Compared with prior art, it has the following beneficial effects:

[0013] 1. The hydraulic support for coal mine, by setting up support plate, support block, pivot, wing plate and hydraulic cylinder, the function of auxiliary support to the top of underground coal face is realized, and the angle of the two side wing plates can be adjusted, so the applicability of the device is enhanced.

[0014] 2. The hydraulic support for coal mine, by setting up hand wheel, bidirectional screw rod, sliding plate, connecting rod, knob, threaded rod, sliding block, limiting tooth and external gear ring, the function of adjusting the height of the device when supporting is realized, and the position of the bidirectional screw rod can be locked after adjustment to prevent the bidirectional screw rod from reversing, so the safety of the device is enhanced, and it is convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structure schematic view of the utility model;

[0016] Figure 2 It is the structure schematic view of the fixed plate of the utility model;

[0017] Figure 3 is the structural schematic view of the fixed seat of the utility model;

[0018] Figure 4 is the structural schematic view of the fixed block of the utility model;

[0019] Figure 5 is the structural schematic view of the connecting plate of the utility model.

[0020] In the figure: 1, mounting frame; 2, fixed plate; 3, hydraulic cylinder; 4, sliding plate; 5, support plate; 6, connecting plate; 7, wing plate; 8, fixed seat; 9, connecting rod; 10, connecting seat; 11, limit rod; 12, hand wheel; 13, rotating shaft; 14, support block; 15, bidirectional screw rod; 16, outer gear ring; 17, sliding block; 18, threaded rod; 19, knob; 20, fixed block; 21, limit tooth; 22, fixed rod; 23, limit block. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Please refer to Figures 1 to 5 The utility model provides a technical scheme:

[0023] The utility model provides a kind of hydraulic support for coal mine, including mounting frame 1, the top of mounting frame 1 is fixedly connected with fixed plate 2 symmetrically, two fixed plates 2 are fixedly connected with fixed seat 8, the top of fixed seat 8 is fixedly connected with connecting seat 10 symmetrically, two connecting seats 10 are rotatably connected with bidirectional screw rod 15, the top of fixed seat 8 is slidably connected with sliding plate 4, sliding plate 4 is threadedly connected with bidirectional screw rod 15, the top of sliding plate 4 is rotatably connected with connecting rod 9 equidistantly, one side of fixed plate 2 is slidably connected with connecting plate 6, the top of connecting plate 6 is fixedly connected with support plate 5, connecting rod 9 is rotatably connected with support plate 5, the outside of support plate 5 is fixedly connected with support block 14 symmetrically, two support blocks 14 are rotatably connected with rotating shaft 13, the outside of rotating shaft 13 is fixedly connected with wing plate 7, one side of connecting plate 6 is rotatably connected with hydraulic cylinder 3, and the output end of hydraulic cylinder 3 is rotatably connected with wing plate 7;The top of underground coal face can be assisted and supported by the setting of support plate 5 and wing plate 7, the angle during use can be adjusted by driving wing plate 7 to rotate by hydraulic cylinder 3, the applicability is better, the movement of sliding plate 4 is generated by the rotation of bidirectional screw rod 15, the rotation of connecting rod 9 is generated by the movement of sliding plate 4, and the movement of support plate 5 is generated by the rotation of connecting rod 9, so that the height during use is adjusted.

[0024] Further, two connecting seats 10 are fixedly connected with limit rod 11 symmetrically, and sliding plate 4 is slidably connected with limit rod 11.The movement of sliding plate 4 can be limited by the setting of limit rod 11, to prevent the deviation of sliding plate 4 during movement.

[0025] Further, one end of bidirectional screw rod 15 is fixedly connected with hand wheel 12, and the rotation of bidirectional screw rod 15 is generated by hand wheel 12.

[0026] Further, the outside of one of connecting seats 10 is slidably connected with sliding block 17, one side of sliding block 17 is fixedly connected with limit tooth 21, the outside of bidirectional screw rod 15 is fixedly connected with outer gear ring 16 used in cooperation with limit tooth 21, and the position of bidirectional screw rod 15 is locked by the movement of limit tooth 21 and the close contact between outer gear ring 16, to prevent bidirectional screw rod 15 from reversing, and the safety effect of the device is enhanced.

[0027] Further, the outside of one of connecting seats 10 is fixedly connected with fixed block 20, and the inside of fixed block 20 is threadedly connected with threaded rod 18, threaded rod 18 is rotatably connected with sliding block 17, one end of threaded rod 18 is fixedly connected with knob 19, the rotation of threaded rod 18 is generated by knob 19, and sliding block 17 is slid along connecting seat 10 by the rotation of threaded rod 18.

[0028] Further, the inner part of the connecting plate 6 is fixedly connected with a fixing rod 22, the outer side of the fixing rod 22 is slidably connected with a limiting block 23, the limiting block 23 is fixedly connected with the fixing plate 2, the movement of the connecting plate 6 can be limited by the fixing rod 22 and the limiting block 23, and deviation is prevented.

[0029] Working principle:

[0030] When in use, the top of the underground coal mining face can be assisted and supported by the supporting plate 5 and the wing plate 7, when the angle of the wing plate 7 in use needs to be adjusted, the hydraulic cylinder 3 is started, the wing plate 7 is driven to rotate by the hydraulic cylinder 3, so that the angle of the wing plate 7 in use is adjusted, the applicability is better, when the height of the device in use needs to be adjusted, the hand wheel 12 is rotated, the bidirectional screw rod 15 is driven to rotate by the hand wheel 12, the sliding plate 4 is driven to move by the rotation of the bidirectional screw rod 15, the movement of the sliding plate 4 can be limited by the limiting rod 11, the connecting rod 9 is driven to rotate by the movement of the sliding plate 4, the supporting plate 5 is driven to move by the rotation of the connecting rod 9, so that the height of the supporting plate 5 in use is adjusted, after the adjustment is completed, the knob 19 is rotated, the screw rod 18 is driven to rotate by the knob 19, the sliding block 17 is driven to slide along the connecting seat 10 by the rotation of the screw rod 18, the limiting teeth 21 are driven to move and tightly contact with the outer gear ring 16 by the sliding block 17, so that the position of the bidirectional screw rod 15 is locked, the bidirectional screw rod 15 is prevented from being reversed, and the safety effect of the device is enhanced, and use is facilitated.

[0031] Meanwhile, the contents not described in detail in the specification all belong to the prior art known by the person skilled in the art.

[0032] It should be noted that, in the present text, relational terms such as first and second are used only to differentiate one entity or action from another, without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprising", "containing" or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or device. Without more limitations. By the sentence "including a limited element, it does not exclude the existence of another same element in the process, method, article or device including the element".

[0033] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydraulic support for coal mines, comprising a mounting frame (1), characterized in that: The top of mounting frame (1) symmetry fixedly connected with fixed plate (2), two fixed plate (2) between fixedly connected with fixed seat (8), the top of fixed seat (8) symmetry fixedly connected with connecting seat (10), two connecting seat (10) between rotationally connected with two-way screw rod (15), the top of fixed seat (8) symmetry slidingly connected with sliding plate (4), sliding plate (4) with two-way screw rod (15) threadedly connected, the top of sliding plate (4) equidistantly rotationally connected with connecting rod (9), the one side of fixed plate (2) slidingly connected with connecting plate (6), the top of connecting plate (6) fixedly connected with support plate (5), connecting rod (9) rotationally connected with support plate (5), the outside of support plate (5) symmetry fixedly connected with support block (14), two support block (14) between rotationally connected with rotation axis (13), the outside of rotation axis (13) fixedly connected with wing plate (7), the one side of connecting plate (6) equidistantly rotationally connected with hydraulic cylinder (3), the output of hydraulic cylinder (3) rotationally connected with wing plate (7).

2. The hydraulic support for coal mine according to claim 1, characterized in that: Two connecting seat (10) between symmetry fixedly connected with limiting rod (11), the sliding plate (4) with limiting rod (11) slidingly connected.

3. The hydraulic support for coal mine according to claim 1, characterized in that: The one end of two-way screw rod (15) fixedly connected with hand wheel (12).

4. The hydraulic support for coal mine as claimed in claim 1, wherein: The outside of one connecting seat (10) slidingly connected with sliding block (17), the one side of sliding block (17) fixedly connected with limiting tooth (21), the outside of two-way screw rod (15) fixedly connected with outer gear ring (16) for cooperating with limiting tooth (21).

5. The hydraulic support for coal mine as claimed in claim 4, wherein: The outside of one connecting seat (10) fixedly connected with fixed block (20), the inside of fixed block (20) threadedly connected with threaded rod (18), threaded rod (18) rotationally connected with sliding block (17), the one end of threaded rod (18) fixedly connected with knob (19).

6. The hydraulic support for coal mine as claimed in claim 1, wherein: The inside of connecting plate (6) equidistantly fixedly connected with fixed rod (22), the outside of fixed rod (22) slidingly connected with limiting block (23), limiting block (23) fixedly connected with fixed plate (2).

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