Low-position top coal caving hydraulic support

Abstract

The utility model discloses a low-position top coal caving hydraulic support, and relates to the technical field of coal caving mechanisms, the low-position top coal caving hydraulic support comprises a base and a tail beam outer box, four corners of the lower surface of the base are fixedly connected with internal threaded pipes, the inner walls of the internal threaded pipes are in threaded connection with threaded supporting rods, and the surfaces of the threaded supporting rods are in threaded connection with nuts; the lower surface of the threaded supporting rod is fixedly connected with a hexagonal block, the lower surface of the hexagonal block is fixedly connected with an anti-skid base, a matching groove is formed in the side face of the tail beam outer box, and the inner wall of the matching groove is rotationally connected with a supporting rod. A worker rotates the hexagonal block through a wrench so as to rotate the threaded supporting rod, the threaded supporting rod is matched with the inner threaded pipe, the length of the threaded supporting rod extending out of the inner threaded pipe is adjusted, the angle of the base is adjusted, the horizontal supporting state is achieved, and the problem that the flatness of a coal seam needs to be processed traditionally is effectively solved; the anti-skid base makes contact with the ground.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal drawing mechanism technical field especially relates to a low position top coal hydraulic support. BACKGROUND

[0002] The main thick seam mining process adopts top coal drawing mining technology, and the top coal drawing hydraulic support tail beam rotation is relied on to realize the coal drawing process, and the present stage is mainly concentrated in the middle support for the top coal drawing support production design, and the coal drawing design of transition support and end support is relatively deficient.

[0003] And the coal drawing mechanism in the prior art needs to be placed in the coal seam bottom processing flatness before erecting, and the multi-angle height position of the coal drawing mechanism cannot be adjusted according to the terrain change. UTILITY MODEL CONTENT

[0004] The utility model discloses a low position top coal hydraulic support, which can adjust the multi-angle height position of the coal drawing mechanism according to the terrain change, and solves the problem of the prior art.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme: a low position top coal hydraulic support, which comprises a base and a tail beam outer box, the four corners of the lower surface of the base are fixedly connected with internal thread pipes, the inner wall of the internal thread pipe is threadedly connected with a threaded support rod, the surface of the threaded support rod is threadedly connected with a nut, the lower surface of the threaded support rod is fixedly connected with a hexagonal block, and the lower surface of the hexagonal block is fixedly connected with an antiskid seat.

[0006] As a further description of the above technical scheme:

[0007] The side surface of the tail beam outer box is provided with a matching groove, and the inner wall of the matching groove is rotatably connected with a support rod.

[0008] As a further description of the above technical scheme:

[0009] The upper surface of the base is fixedly connected with a hinged seat, and the inner wall of the hinged seat is rotatably connected with the support rod.

[0010] As a further description of the above technical scheme:

[0011] The surface of the tail beam outer box is provided with a threaded hole, and the inner wall of the threaded hole is threadedly connected with a fixing bolt.

[0012] As a further description of the above technical scheme:

[0013] The surface of the support rod is provided with a plug hole, and the upper surface of the base is fixedly connected with a cloth stopper.

[0014] As a further description of the above technical scheme:

[0015] The lower surface of the tail beam outer box is fixedly connected with the blocking cloth, and the surface of the blocking cloth is fixedly connected with an elastic layer.

[0016] As a further description of the above technical solution:

[0017] The surface of the elastic layer is fixedly connected with a wear-resistant layer.

[0018] As a further description of the above technical solution:

[0019] The upper surface of the tail beam outer box is fixedly connected with a coal discharging opening, and the side surface of the tail beam outer box is provided with a sliding groove.

[0020] As a further description of the above technical solution:

[0021] The inner wall of the sliding groove is slidingly connected with a tail beam plug plate, and the front and back surfaces of the tail beam plug plate are both fixedly connected with a hydraulic rod.

[0022] As a further description of the above technical solution:

[0023] The output end of the hydraulic rod is fixedly connected with the inner wall of the sliding groove.

[0024] The utility model has the advantages of the following beneficial effects:

[0025] 1. Compared with the prior art, the fully mechanized caving intelligent coal discharging mechanism, the worker rotates the hexagonal block through the wrench, thereby rotating the threaded support rod, the threaded support rod cooperates with the internal thread pipe, the length of the threaded support rod extending out of the internal thread pipe is adjusted, thereby the angle of the base is adjusted, so that it reaches the horizontal support state, effectively solves the problem of traditional coal seam flatness, the anti-skid seat contacts with the ground, and the anti-skid ability of the coal discharging mechanism is improved.

[0026] 2. Compared with the prior art, the fully mechanized caving intelligent coal discharging mechanism, after the gangue enters the coal discharging mechanism, the gangue is blocked by the blocking cloth, the gangue is not easy to splash out of the coal discharging mechanism, the elastic layer is elastically deformed to buffer, so that the blocking cloth is not easy to be damaged, the wear-resistant layer improves the wear-resistant ability of the blocking cloth, the fixed bolt is taken out from the screw hole, so that the fixed bolt is pulled out from the jack, then the tail beam outer box is moved, the top of the support rod rotates with the matching groove, the bottom of the support rod rotates with the hinged seat, the coal discharging mechanism is folded, and the volume of the coal discharging mechanism is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 An overall structure schematic diagram of a low-position top coal hydraulic support is provided for the utility model;

[0028] Figure 2 A tail beam outer box structure schematic diagram of a low-position top coal hydraulic support is provided for the utility model;

[0029] Figure 3 The utility model provides a low position top coal hydraulic support's Figure 1 The structure enlarged view of A place in middle;

[0030] Figure 4 The utility model provides a low position top coal hydraulic support's support rod structure schematic view;

[0031] Figure 5 The utility model provides a low position top coal hydraulic support's internal thread pipe structure schematic view;

[0032] Figure 6 The utility model provides a low position top coal hydraulic support's cloth blocking partial sectional view.

[0033] Legend:

[0034] 1, base, 2, tail beam outer box, 3, support rod, 4, hinged seat, 5, fixed bolt, 6, screw hole, 7, insertion hole, 8, internal thread pipe, 9, threaded support rod, 10, nut, 11, hexagonal block, 12, antiskid seat, 13, cloth blocking, 14, elastic layer, 15, wear-resistant layer, 16, coal discharging opening, 17, sliding groove, 18, tail beam insertion plate, 19, matching groove, 20, hydraulic rod. Specific implementation

[0035] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range of the utility model protection.

[0036] In the description of the utility model, it is necessary to explain that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model; the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance, in addition, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, and it can be the communication between two elements. For ordinary skilled persons in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0037] Embodiment:

[0038] With reference to Figures 1-6 , the utility model provides a low position top coal hydraulic support: including base 1 and tail beam outer box 2, the four corners of base 1 lower surface are all fixedly connected with internal thread pipe 8, the inner wall of internal thread pipe 8 is threadedly connected with threaded support rod 9, the surface of threaded support rod 9 is threadedly connected with nut 10, the lower surface of threaded support rod 9 is fixedly connected with hexagonal block 11, the lower surface of hexagonal block 11 is fixedly connected with antiskid seat 12, and staff turns hexagonal block 11 by spanner, thereby rotating threaded support rod 9, threaded support rod 9 cooperates with internal thread pipe 8, adjusts the length of threaded support rod 9 to project internal thread pipe 8, thereby adjusting the angle of base 1, makes it reach horizontal support state, effectively solves the problem that traditional coal seam flatness needs to be handled, rotates nut 10 upwards, makes nut 10 and internal thread pipe 8 fasten, threaded support rod 9 is not prone to rotating when coal release mechanism works, antiskid seat 12 contacts with ground, improves the antiskid capacity of coal release mechanism.

[0039] In the embodiment, with reference to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 6The side of the tail beam outer box 2 is provided with a matching groove 19, the inner wall of the matching groove 19 is rotationally connected with a supporting rod 3, the upper surface of the base 1 is fixedly connected with a hinged seat 4, the inner wall of the hinged seat 4 is rotationally connected with the supporting rod 3, the surface of the tail beam outer box 2 is provided with a threaded hole 6, the inner wall of the threaded hole 6 is threadedly connected with a fixing bolt 5, the surface of the supporting rod 3 is provided with a insertion hole 7, the fixing bolt 5 is taken out of the threaded hole 6, the fixing bolt 5 is pulled out of the insertion hole 7, then the tail beam outer box 2 is pushed to move, the top of the supporting rod 3 rotates with the matching groove 19, the bottom of the supporting rod 3 rotates with the hinged seat 4, the coal discharging mechanism is folded, the volume of the coal discharging mechanism is reduced, the coal discharging mechanism is conveniently transported, the upper surface of the base 1 is fixedly connected with a cloth stopper 13, the lower surface of the tail beam outer box 2 is fixedly connected with the cloth stopper 13, the surface of the cloth stopper 13 is fixedly connected with an elastic layer 14, the surface of the elastic layer 14 is fixedly connected with a wear-resistant layer 15, after the gangue enters the inside of the coal discharging mechanism, the gangue is blocked by the cloth stopper 13, the gangue is not easy to splash out of the coal discharging mechanism, the elastic layer 14 elastically deforms to buffer, the cloth stopper 13 is not easy to be damaged, and the wear-resistant layer 15 improves the wear resistance of the cloth stopper 13.

[0040] In the embodiment, reference is made to Figure 1 and Figure 2 The upper surface of the tail beam outer box 2 is fixedly connected with a coal discharging opening 16, the side of the tail beam outer box 2 is provided with a sliding groove 17, the inner wall of the sliding groove 17 is slidingly connected with a tail beam plugboard 18, the front and back surfaces of the tail beam plugboard 18 are fixedly connected with hydraulic rods 20, the output ends of the hydraulic rods 20 are fixedly connected with the inner wall of the sliding groove 17, the tail beam plugboard 18 is driven by the hydraulic rods 20 to be telescopically inserted, so that the coal discharging opening 16 is opened or closed through the telescopic movement of the tail beam plugboard 18, and the coal is discharged by opening the coal discharging opening 16.

[0041] Working principle: first, the angle of the base 1 is adjusted, the worker rotates the hexagonal block 11 by using a wrench, so as to rotate the threaded supporting rod 9, the threaded supporting rod 9 is matched with the internal threaded tube 8, the length of the threaded supporting rod 9 extending out of the internal threaded tube 8 is adjusted, so as to adjust the angle of the base 1, so that the base 1 reaches a horizontal supporting state, effectively solving the problem that the traditional coal seam flatness needs to be handled, the nut 10 is rotated upwards, so that the nut 10 is fastened with the internal threaded tube 8, the threaded supporting rod 9 is not easy to rotate when the coal discharging mechanism works, the anti-skid seat 12 is in contact with the ground, the anti-skid ability of the coal discharging mechanism is improved, the hydraulic rods 20 are elongated, the tail beam plugboard 18 is pushed out of the sliding groove 17, and the coal discharging opening 16 is opened.

[0042] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A low-seated top coal hydraulic support, comprising a base (1) and a tail beam outer box (2), characterized in that: The lower surface of the base (1) is fixedly connected with an internally threaded pipe (8) at each corner, the inner wall of the internally threaded pipe (8) is threadedly connected with a threaded support rod (9), the surface of the threaded support rod (9) is threadedly connected with a nut (10), the lower surface of the threaded support rod (9) is fixedly connected with a hexagonal block (11), the lower surface of the hexagonal block (11) is fixedly connected with an anti-skid base (12), the upper surface of the base (1) is fixedly connected with a hinged base (4), the side surface of the tail beam outer box (2) is provided with a matching groove (19), the inner wall of the matching groove (19) is rotatably connected with a support rod (3), the inner wall of the hinged base (4) is rotatably connected with the support rod (3), the surface of the tail beam outer box (2) is provided with a threaded hole (6), the inner wall of the threaded hole (6) is threadedly connected with a fixing bolt (5), the surface of the support rod (3) is provided with a bushing (7), the upper surface of the base (1) is fixedly connected with a cloth stopper (13), the lower surface of the tail beam outer box (2) is fixedly connected with the cloth stopper (13), the surface of the cloth stopper (13) is fixedly connected with an elastic layer (14), and the surface of the elastic layer (14) is fixedly connected with a wear-resistant layer (15).

2. The low-positioned top coal caving hydraulic support according to claim 1, characterized in that: The upper surface of the tail beam outer box (2) is fixedly connected with a coal discharging opening (16), and the side surface of the tail beam outer box (2) is provided with a sliding groove (17).

3. The low-positioned top coal caving hydraulic support according to claim 2, characterized in that: The inner wall of the sliding groove (17) is slidably connected with a tail beam plug-in plate (18), and the front and back surfaces of the tail beam plug-in plate (18) are fixedly connected with a hydraulic rod (20).

4. The low-positioned top coal caving hydraulic support according to claim 3, characterized in that: The output end of the hydraulic rod (20) is fixedly connected with the inner wall of the sliding groove (17).

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