Supporting and fixing plate

Abstract

The utility model discloses a supporting and fixing plate, and relates to the technical field of coal mining devices. The device comprises a bottom plate, a notch is formed in the middle of the top face of the bottom plate, a hydraulic prop is placed in the notch, a threaded cylinder is arranged on the top face of the bottom plate and located on one side of the notch, the end face of the threaded cylinder is fixedly connected with four pressing plates, and the four pressing plates are distributed in an array mode with the axis of the notch as the center. The pressing plate corresponds to the hydraulic prop, a threaded rod is connected to a barrel opening of the threaded barrel in a penetrating and threaded mode, a hexagonal knob is fixedly connected to the rod end of the threaded rod, a connecting rod is fixedly connected to the face, back to the threaded rod, of the hexagonal knob, a rotating connector is rotationally connected to the side wall of the connecting rod, and graduated scales are arranged on the two sides of the threaded barrel. According to the utility model, the phenomenon of bottom drilling of the single hydraulic prop under the roadway side pressure can be effectively reduced, and the single hydraulic prop is convenient to install on site, low in cost and suitable for roadways under the roadway side pressure and complex geological conditions.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mining devices, in particular to a supporting fixing plate. Background Art

[0002] During coal mining, there are situations where the coal seams are deeply buried and the geological conditions are complex. The roof and bottom plates are mostly mudstone and fine sandstone. The rock is soft and easy to fall off. It softens, swells, and disintegrates when exposed to water, and its strength is also reduced. The solid stability is poor. It is a typical "three-soft" unstable coal seam, especially in locations where single hydraulic props are supported by π-shaped steel. The single hydraulic prop is easy to drill the bottom, resulting in a decrease in the initial support force, which may cause local spalling, roof collapse, insufficient tunnel height and other problems, bringing certain difficulties to safety management work. Therefore, in response to the above problems, the inventor proposes a support fixing plate to solve the above problems. Utility Model Content

[0003] In order to solve the problem that the single hydraulic prop is easy to drill the bottom at the location of the single hydraulic prop, resulting in a reduction in the initial support force; the purpose of the utility model is to provide a support fixing plate.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: a supporting fixed plate, comprising a base plate, a recess is provided in the middle of the top surface of the base plate, a hydraulic support is placed in the recess, a threaded barrel is provided on the top surface of the base plate and on one side of the recess, a holding plate is fixedly connected to the end surface of the threaded barrel, the holding plate corresponds to the hydraulic support, a screw is threadedly connected to the barrel mouth of the threaded barrel, a hexagonal knob is fixedly connected to the rod end of the screw, a connecting rod is fixedly connected to the side of the hexagonal knob facing away from the screw, a rotating joint is rotatably connected to the side wall of the connecting rod, and scales are provided on both sides of the threaded barrel.

[0005] Preferably, there are four holding plates, and the four holding plates are distributed in an array with the axis of the recess as the center. When the hydraulic support is placed in the recess, the four holding plates can be used to limit and fix the hydraulic support in the recess to avoid the hydraulic support from being deflected during operation. The bottom plate can increase the contact surface with the ground to avoid the single hydraulic support from drilling into the bottom. When the hydraulic support needs to be removed, only the hexagonal knob needs to be turned, and the holding plate can be separated from the hydraulic support through the cooperation between the screw and the threaded barrel, so that the hydraulic support can be taken out of the recess.

[0006] Preferably, the bottom surface of the threaded barrel is fixedly connected with a convex plate, the bottom surface of the convex plate is fixedly connected with a slide rail, the top surface of the bottom plate is provided with a slide groove, the slide groove corresponds to the slide rail and is slidably connected, the axis of the slide groove coincides with the axis of the recess, and the bottom surface of the convex plate contacts the top surface of the bottom plate, and the hexagonal knob is turned, and the screw rotates driven by the hexagonal knob, and through the mutual cooperation between the screw and the threaded barrel, and the cooperation between the slide rail and the slide groove, the threaded barrel can be translated, and then the holding plate can be moved.

[0007] Preferably, the side wall of the rotating joint is fixedly connected with a support seat, the bottom surface of the support seat is fixedly connected to the top surface of the bottom plate, the rotating joint is used to support the connecting rod for rotation, and the support seat is used to support the rotating joint, the end face of the scale is fixedly connected to the side wall of the holding plate, and a cavity plate is provided on one side of the scale, and the scale is slidably connected to the cavity mouth of the cavity plate. When the holding plate moves, the scale will also move with the holding plate, and the movement data on the scale can be used to know the moving distance of the holding plate, so that the moving distances of the four holding plates are the same, and then the force applied by the four holding plates to the hydraulic support is the same, and the two sides of the bottom surface of the cavity plate are fixedly connected with fixing rods, the bottom ends of the fixing rods are fixedly connected to the top surface of the bottom plate, and the fixing rods are used to support and fix the cavity plate.

[0008] Compared with the prior art, the beneficial effects of the utility model are: it can effectively reduce the phenomenon of the bottom drilling of the single hydraulic prop due to the pressure of the lane wall, and it is easy to install on site, with low cost, and is more suitable for use in lanes with complex geological conditions and lane wall pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0010] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0011] Figure 2 This is a schematic diagram of the bottom plate structure of the utility model.

[0012] Figure 3 This is a schematic diagram of the structure of the holding plate of the utility model.

[0013] In the figure: 1, bottom plate; 2, notch; 3, slide groove; 4, threaded barrel; 5, convex plate; 6, slide rail; 7, holding plate; 8, scale; 9, cavity plate; 10, fixing rod; 11, screw rod; 12, hexagonal knob; 13, connecting rod; 14, rotating joint; 15, support seat; 16, hydraulic support. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0015] Example: Figure 1-3 As shown, the utility model provides a supporting fixing plate, including a base plate 1, a recess 2 is provided in the middle of the top surface of the base plate 1, a hydraulic support 16 is placed in the recess 2, a threaded barrel 4 is provided on the top surface of the base plate 1 and on one side of the recess 2, the end surface of the threaded barrel 4 is fixedly connected with a holding plate 7, the holding plate 7 corresponds to the hydraulic support 16, a screw rod 11 is threadedly connected to the barrel mouth of the threaded barrel 4, a hexagonal knob 12 is fixedly connected to the rod end of the screw rod 11, a connecting rod 13 is fixedly connected to the side wall of the connecting rod 13 with a rotating joint 14, and scales 8 are provided on both sides of the threaded barrel 4.

[0016] There are four pressing plates 7 , and the four pressing plates 7 are distributed in an array with the axis of the recess 2 as the center.

[0017] By adopting the above technical solution, there are four holding plates 7. When the hydraulic support 16 is placed in the recess 2, the four holding plates 7 can be used to limit and fix the hydraulic support 16 in the recess 2 to prevent the hydraulic support 16 from being deflected during operation. The bottom plate 1 can increase the contact surface with the ground to prevent the single hydraulic support 16 from drilling into the bottom. When the hydraulic support 16 needs to be removed, it is only necessary to turn the hexagonal knob 12, and the holding plate 7 and the hydraulic support 16 can be separated through the mutual cooperation of the screw 11 and the threaded barrel 4, so that the hydraulic support 16 can be taken out of the recess 2.

[0018] The bottom surface of the threaded barrel 4 is fixedly connected with a convex plate 5, the bottom surface of the convex plate 5 is fixedly connected with a slide rail 6, the top surface of the bottom plate 1 is provided with a slide groove 3, the slide groove 3 corresponds to the slide rail 6 and is slidably connected, the axis of the slide groove 3 coincides with the axis of the recess 2, and the bottom surface of the convex plate 5 contacts the top surface of the bottom plate 1.

[0019] By adopting the above technical solution, the hexagonal knob 12 is turned, and the screw 11 is rotated under the drive of the hexagonal knob 12. Through the mutual cooperation between the screw 11 and the threaded barrel 4, and the cooperation between the slide rail 6 and the slide groove 3, the threaded barrel 4 can be translated, and then the holding plate 7 can be moved.

[0020] A support seat 15 is fixedly connected to the side wall of the rotating joint 14 , and a bottom surface of the support seat 15 is fixedly connected to the top surface of the bottom plate 1 .

[0021] By adopting the above technical solution, the rotating joint 14 is used to support the connecting rod 13 to rotate, and the supporting seat 15 is used to support the rotating joint 14 .

[0022] The end surface of the scale 8 is fixedly connected to the side wall of the holding plate 7 , a cavity plate 9 is provided on one side of the scale 8 , and the scale 8 is slidably connected to the cavity opening of the cavity plate 9 .

[0023] By adopting the above technical solution, when the pressure holding plate 7 moves, the scale 8 will also move with the pressure holding plate 7. The movement data on the scale 8 can be used to know the moving distance of the pressure holding plate 7, so that the moving distances of the four pressure holding plates 7 are the same, and then the force applied by the four pressure holding plates 7 to the hydraulic support 16 is the same.

[0024] Both sides of the bottom surface of the cavity plate 9 are fixedly connected with fixing rods 10 , and the bottom ends of the fixing rods 10 are fixedly connected to the top surface of the bottom plate 1 .

[0025] By adopting the above technical solution, the fixing rod 10 is used to support and fix the cavity plate 9 .

[0026] Working principle: When the utility model is in use, the hydraulic prop 16 is placed in the recess 2, and the hexagonal knob 12 is turned, and the screw 11 is driven by the hexagonal knob 12 to rotate, and the screw 11 and the threaded barrel 4 cooperate with each other, and the slide rail 6 and the slide groove 3, so that the threaded barrel 4 can be translated, and then the holding plate 7 can be moved, so that the hydraulic prop 16 in the recess 2 is limited and fixed by the holding plate 7, so as to avoid the hydraulic prop 16 from being deflected when operating;

[0027] When the holding plate 7 moves, the scale 8 also moves with the holding plate 7. The moving distance of the holding plate 7 can be known through the moving data on the scale 8, so that the moving distances of the four holding plates 7 are the same, and the force applied by the four holding plates 7 to the hydraulic support 16 is the same.

[0028] After the installation is completed, the contact area with the ground can be increased through the base plate 1 to avoid the single hydraulic support 16 from drilling into the bottom. When the hydraulic support 16 needs to be removed, it is only necessary to turn the hexagonal knob 12, and through the mutual cooperation of the screw rod 11 and the threaded barrel 4, the holding plate 7 and the hydraulic support 16 are separated, and the hydraulic support 16 can be taken out from the recess 2.

[0029] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A supporting and fixing plate, comprising a bottom plate (1), characterized in that: A notch (2) is provided in the middle of the top surface of the base plate (1), a hydraulic support (16) is placed in the notch (2), a threaded barrel (4) is provided on the top surface of the base plate (1) and on one side of the notch (2), the end surface of the threaded barrel (4) is fixedly connected to a holding plate (7), the holding plate (7) corresponds to the hydraulic support (16), a screw rod (11) is threadedly connected to the barrel mouth of the threaded barrel (4), a hexagonal knob (12) is fixedly connected to the rod end of the screw rod (11), a connecting rod (13) is fixedly connected to the side of the hexagonal knob (12) facing away from the screw rod (11), a rotating joint (14) is rotatably connected to the side wall of the connecting rod (13), and scales (8) are provided on both sides of the threaded barrel (4).

2. A supporting and fixing plate according to claim 1, characterized in that: There are four pressing plates (7), and the four pressing plates (7) are distributed in an array with the axis of the recess (2) as the center.

3. A supporting and fixing plate according to claim 1, characterized in that: The bottom surface of the threaded barrel (4) is fixedly connected to a convex plate (5), and the bottom surface of the convex plate (5) is fixedly connected to a slide rail (6).

4. A supporting and fixing plate as claimed in claim 3, characterized in that: The top surface of the bottom plate (1) is provided with a slide groove (3), and the slide groove (3) corresponds to the slide rail (6) and is slidably connected to it.

5. A supporting and fixing plate as claimed in claim 4, characterized in that: The axis of the slide groove (3) coincides with the axis of the recess (2), and the bottom surface of the convex plate (5) contacts the top surface of the bottom plate (1).

6. A supporting and fixing plate as claimed in claim 1, characterized in that: The side wall of the rotating joint (14) is fixedly connected to a support seat (15), and the bottom surface of the support seat (15) is fixedly connected to the top surface of the bottom plate (1).

7. A supporting and fixing plate as claimed in claim 1, characterized in that: The end face of the scale (8) is fixedly connected to the side wall of the holding plate (7), a cavity plate (9) is provided on one side of the scale (8), and the scale (8) is slidably connected to the cavity opening of the cavity plate (9).

8. A supporting and fixing plate as claimed in claim 7, characterized in that: Both sides of the bottom surface of the cavity plate (9) are fixedly connected with fixing rods (10), and the bottom ends of the fixing rods (10) are fixedly connected to the top surface of the bottom plate (1).

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