Movable supporting device for coal mine driving face

Abstract

The utility model relates to the technical field of coal mine tunneling, and particularly discloses a movable supporting device for a coal mine tunneling working face, which comprises two first supporting plates and two second supporting plates, a plurality of first supporting structures are arranged at the top ends of the two first supporting plates at equal intervals, and a plurality of second supporting structures are arranged at the top ends of the second supporting plates at equal intervals. A plurality of second supporting structures are jointly installed at the top ends of the two second supporting plates at equal intervals, supporting structures are jointly and fixedly connected to the two sides of the bottom ends of the first supporting plates and the two sides of the bottom ends of the second supporting plates, and universal wheels are installed in the middles of the bottom ends of the supporting structures. Convenient movement is achieved through the arranged universal wheels, once the device moves to a preset position, an operator can firstly fix the supporting structure on one side and then pull the supporting structure on the other side to enable the second supporting plate to move, the second supporting structure extends along with the second supporting structure, the device can move along with tunneling equipment along with gradual increase of the tunneling depth, and the tunneling efficiency is improved. And the overall efficiency of the tunneling operation is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of coal mine tunneling, and particularly relates to a movable supporting device for a coal mine tunneling working face. BACKGROUND

[0002] Coal mine tunneling refers to a working process of forming a roadway space by breaking or cutting rock (coal) bodies in underground deposits such as coal mines. In the process of roadway tunneling construction, if the roof is not timely and effectively supported after being exposed, roof fall may occur, causing casualties. Therefore, in order to ensure the safety of construction personnel, a safe construction environment should be established for personnel, and temporary support should be used before permanent support.

[0003] In the Chinese patent with publication number CN212359814U, a coal mine tunneling supporting device is mentioned, which includes an extension device. The extension device includes a first box body, a cavity is formed in the first box body, the left and right sides of the first box body are respectively rotatably connected with the left and right ends of an internal threaded pipe, the middle part of the internal threaded pipe is fixedly connected with a first bevel gear, and the first bevel gear is engaged with a second bevel gear. The coal mine tunneling supporting device has the functions of adjusting the height, width, and adapting to the changing conditions of the coal mine roadway through the cooperation of the second hand wheel, the shaft, the first gear, the second gear, the first gear, and the toothed rod. The supporting device can be manually adjusted in width through the cooperation of the internal threaded pipe, the threaded rod, the first bevel gear, the second bevel gear, and the first hand wheel.

[0004] During use, as the tunneling equipment continuously advances, the tunneling depth gradually increases, but the supporting device cannot directly displace like the tunneling equipment. On the contrary, whenever the tunneling reaches a new position, the supporting device must be disassembled, moved to the new position, and reassembled. This process is not only tedious and time-consuming, but also greatly reduces the overall efficiency of the tunneling operation. TECHNICAL FIELD

[0005] In order to overcome the shortcomings of the prior art, the purpose of the utility model is to provide a movable supporting device for a coal mine tunneling working face to solve the problem that the supporting device cannot directly displace like the tunneling equipment.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] The movable supporting device for a coal mine tunneling working face includes:

[0008] The first support plate and the second support plate;

[0009] The first support plate and the second support plate are both provided with two, and the top ends of the two first support plates are commonly and equidistantly provided with a plurality of first support structures, the top ends of the two second support plates are commonly and equidistantly provided with a plurality of second support structures, and the bottom ends of the first support plate and the second support plate are both commonly and fixedly connected with support structures, and the bottom ends of the support structures are all provided with universal wheels.

[0010] Preferably, the support structure comprises a connecting seat, an electric telescopic rod, a connecting plate, a connecting groove, a first movable plate, a mounting groove and a second movable plate, the electric telescopic rod is installed at one side of the top end of the connecting seat, the connecting plate is installed at the output end of the electric telescopic rod, the connecting groove is formed in one end of the connecting plate, the second movable plate is movably installed in the connecting groove, the first movable plate is movably installed at the other end of the connecting seat, and the mounting groove is formed in one end of the first movable plate away from the connecting seat.

[0011] Preferably, the second movable plate is movably installed in the mounting groove away from the connecting groove.

[0012] Preferably, the connecting plate is fixedly connected at the bottom end of the first support plate.

[0013] Preferably, the first support structure comprises a support frame and a top plate, a plurality of movable rods are movably connected at the top end of the support frame, the bottom end of the movable rod penetrates through the bottom end of the support frame and is fixedly connected with a connecting block, a spring is sleeved on the outer surface of the lower part of the movable rod, the top plate is installed at the top end of the plurality of movable rods, and the support frame is fixedly connected at the top end of the two first support plates.

[0014] Preferably, the first support structure and the second support structure are identical in structure and same in connection mode, and the plurality of first support structures and the plurality of second support structures are distributed in a cross mode.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] (1) by setting first support plate, support structure and universal wheel, the device is moved conveniently through the universal wheel, once moving to the predetermined position, the operator will first fix the support structure on one side, then pull the support structure on the other side, which will drive the second support plate to move in linkage, with the movement of the second support plate, the second support structure is also extended, effectively expanding the coverage of the support, with the gradual increase of the tunneling depth, the device can follow the tunneling equipment to move.

[0017] (2) by setting the electric telescopic rod, connecting plate, first movable plate, second movable plate, top plate, movable rod and spring, starting the electric telescopic rod, the output end immediately drives the connecting plate to displace, so that the second movable plate moves, the second movable plate pulls the first movable plate to rotate, so that the first support plate rises synchronously, so that the top plate moves upward, through the continuous output of the output end of the electric telescopic rod, the support frame slides smoothly along the outer surface of the movable rod, and the spring is gradually stretched, this process ensures that the top plate can be closely and firmly attached to the coal mine tunneling working face, thereby providing stable and effective supporting effect. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is one of the perspective views of the utility model;

[0019] Figure 2 It is the second perspective view of the utility model;

[0020] Figure 3 It is a perspective view of the support structure of the utility model;

[0021] Figure 4 It is a perspective view of the support structure of the utility model;

[0022] In the drawing: 1, first support plate; 2, second support plate; 3, support structure; 4, universal wheel; 5, first support structure; 6, second support structure; 31, connecting seat; 32, electric telescopic rod; 33, connecting plate; 34, connecting groove; 35, first movable plate; 36, mounting groove; 37, second movable plate; 51, support frame; 52, movable rod; 53, top plate; 54, connecting block; 55, spring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be described clearly and completely 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 scope of protection of the utility model.

[0024] Embodiment one:

[0025] Please refer to Figure 1 - Figure 4 As shown in the drawing, the movable support device of the coal mine tunneling working face comprises:

[0026] The first support plate 1 and the second support plate 2;

[0027] The first support plate 1 and the second support plate 2 are both provided with two, and the top ends of the two first support plates 1 are commonly and equidistantly provided with a plurality of first support structures 5, the top ends of the two second support plates 2 are commonly and equidistantly provided with a plurality of second support structures 6, and the bottom ends of the first support plate 1 and the second support plate 2 are both commonly and fixedly connected with a support structure 3, and the bottom ends of the support structure 3 are all provided with a universal wheel 4.

[0028] As can be seen from the above, the pulling device moves through the universal wheel 4, after moving to a suitable position, the support structure 3 on one side is fixed, and then the support structure 3 on the other side is pulled, the support structure 3 drives the second support plate 2 fixedly connected therewith to displace, so that the second support plate 2 drives the second support structure 6 mounted therewith to move, so that the second support structure 6 can be extended, thereby expanding the support area.

[0029] Embodiment two:

[0030] Reference Figure 3 and Figure 4 As shown in the drawings, the support structure 3 comprises a connecting seat 31, an electric telescopic rod 32, a connecting plate 33, a connecting groove 34, a first movable plate 35, a mounting groove 36 and a second movable plate 37, the electric telescopic rod 32 is installed on one side of the top end of the connecting seat 31, the connecting plate 33 is installed on the output end of the electric telescopic rod 32, the connecting groove 34 is opened at one end of the connecting plate 33, the second movable plate 37 is movably installed in the connecting groove 34, the first movable plate 35 is movably installed at the other end of the connecting seat 31, and the mounting groove 36 is opened at one end of the first movable plate 35 away from the connecting seat 31.

[0031] The first support structure 5 comprises a support frame 51 and a top plate 53, a plurality of movable rods 52 are movably connected to the top ends of the support frame 51, the bottom ends of the movable rods 52 penetrate through the bottom end of the support frame 51 and are fixedly connected with a connecting block 54, springs 55 are sleeved on the outer surfaces of the lower parts of the movable rods 52, the top plate 53 is installed at the top ends of the movable rods 52, and the support frame 51 is fixedly connected to the top ends of the two first support plates 1.

[0032] From the above, the electric telescopic rod 32 is started, the output end of the electric telescopic rod 32 drives the connecting plate 33 fixedly connected therewith to displace, the connecting plate 33 drives the second movable plate 37 movably connected therewith to move, the second movable plate 37 pulls the first movable plate 35 movably connected therewith to move, so that the first movable plate 35 rotates, when the connecting plate 33 displaces upward, the connecting plate 33 pushes the first support plate 1 fixedly connected therewith to displace upward, the first support plate 1 drives the support frame 51 fixedly connected therewith to move, the support frame 51 drives the top plate 53 to move upward through the movable rod 52, the top plate 53 is in close contact with the coal mine tunneling working face, and through the continuous output of the output end of the electric telescopic rod 32, the support frame 51 slides on the outer surface of the movable rod 52, the support frame 51 pulls the spring 55 fixedly connected therewith to extend, so that the top plate 53 is in close contact with the coal mine tunneling working face.

[0033] Preferably, the second movable plate 37 is movably installed at one end away from the connecting groove 34 in the mounting groove 36;

[0034] The connecting plate 33 is fixedly connected at the bottom end of the first support plate 1;

[0035] The first support structure 5 and the second support structure 6 are identical in structure and same in connection mode, and the plurality of first support structures 5 and the plurality of second support structures 6 are distributed in a cross shape.

[0036] From the above, by setting the second movable plate 37 and the first movable plate 35, the stability of the first support structure 5 in lifting is improved, and the plurality of first support structures 5 and the plurality of second support structures 6 are arranged in a cross shape, so that a larger coal mine tunneling working face can be supported when extending.

[0037] Further, the design application is applied in the supporting process of the coal mine tunneling working face, the device is convenient to move through the equipped universal wheel 4, once moved to the predetermined position, the operator will first fix one side of the support structure 3, then pull the other side of the support structure 3, which will drive the second support plate 2 fixedly connected therewith to displace in linkage, and with the movement of the second support plate 2, the second support structure 6 installed thereon also extends, effectively expanding the coverage of the support.

[0038] Next, the electric telescopic rod 32 is started, and the output end of the electric telescopic rod 32 drives the closely connected connecting plate 33 to move, the movement of the connecting plate 33 drives the second movable plate 37 connected with the connecting plate 33 to move, the second movable plate 37 drives the first movable plate 35 to rotate, and particularly, when the connecting plate 33 moves upward, it also drives the first support plate 1 fixedly connected with the connecting plate 33 to move upward, the movement of the first support plate 1 drives the support frame 51 fixedly connected with the first support plate 1 to move, and the support frame 51 drives the top plate 53 to move upward through the transmission of the movable rod 52 until the top plate 53 closely contacts the coal mine tunneling working face;

[0039] With the continuous action of the electric telescopic rod 32 on the output end of the connecting seat 31, the support frame 51 smoothly slides along the outer surface of the movable rod 52 and gradually stretches the spring 55 fixedly connected with the support frame 51, and this process ensures that the top plate 53 closely and firmly contacts the coal mine tunneling working face, thereby providing stable and effective support.

[0040] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A mobile support device for a coal mine heading face, characterised in that, The utility model relates to a kind of support structure, including: First support plate (1) and second support plate (2); The first support plate (1) and second support plate (2) are provided with two, and the top of two first support plate (1) is equally spaced and installed with multiple first support structure (5), the top of two second support plate (2) is equally spaced and installed with multiple second support structure (6), the bottom of the first support plate (1) and second support plate (2) is fixedly connected with support structure (3) on both sides, the bottom of the support structure (3) is installed with universal wheel (4) in middle part.

2. A mobile support device for a coal mine face according to claim 1, characterised in that: The support structure (3) includes connecting seat (31), electric telescopic rod (32), connecting plate (33), connecting groove (34), first movable plate (35), mounting groove (36) and second movable plate (37), the electric telescopic rod (32) is installed in the top end side of connecting seat (31), the connecting plate (33) is installed in the output end of electric telescopic rod (32), the connecting groove (34) is opened in one end of connecting plate (33), the second movable plate (37) is movably installed in connecting groove (34), the first movable plate (35) is movably installed in the other end of connecting seat (31), the mounting groove (36) is opened in the end of first movable plate (35) away from connecting seat (31).

3. A mobile support device for a coal mine face according to claim 2, characterised in that: The second movable plate (37) is movably installed in mounting groove (36) in the end away from connecting groove (34).

4. A mobile support device for a coal mine face according to claim 3, characterised in that: The connecting plate (33) is fixedly connected in the bottom of first support plate (1).

5. The mobile support device for a coal mine face according to claim 1, characterised in that: The first support structure (5) includes support frame (51) and top plate (53), the top of the support frame (51) is movably connected with multiple movable rods (52), the bottom of the movable rod (52) is penetrated through the bottom of support frame (51) and is fixedly connected with connecting block (54), the outer surface of the lower part of the movable rod (52) is sleeved with spring (55), the top plate (53) is installed in the top of multiple movable rods (52), and the support frame (51) is fixedly connected in the top of two first support plate (1).

6. The mobile support device for a coal mine face according to claim 1, characterised in that: The first support structure (5) and second support structure (6) are consistent in structure, and the connection mode is same, multiple first support structure (5) and multiple second support structure (6) are distributed in cross type.

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