Replaceable bottom adjusting jack mounting structure for coal mine hydraulic support

Abstract

A replaceable bottom adjusting jack mounting structure for a coal mine hydraulic support comprises a base, the base comprises a bottom plate, a first main rib plate and a second main rib plate are arranged on the bottom plate, a lug plate is arranged on the second main rib plate, and a cylinder head of a bottom adjusting jack is hinged to the lug plate through a plug pin A; a mounting plate fixed on the bottom plate is arranged between the first main rib plate and the second main rib plate, a first arc-shaped groove right opposite to the lug plate is formed in the mounting plate, an arc-shaped pressing block is fixedly mounted above the mounting plate, the arc-shaped pressing block is provided with a second arc-shaped groove, and a cylinder body of the bottom adjusting jack is arranged in a cavity defined by the second arc-shaped groove and the first arc-shaped groove; a through hole directly facing the mounting plate is formed in the first main rib plate; the telescopic end of the bottom adjusting jack penetrates through the through hole. By improving the mounting structure of the bottom adjusting jack, the bottom adjusting jack does not need to be fixed through bolts during mounting, and the problem that the bottom adjusting jack is difficult to detach and replace due to corrosion of fixing bolts of a traditional bottom adjusting jack is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of coal mine hydraulic support, especially a replaceable bottom adjustment jack mounting structure for coal mine hydraulic support. BACKGROUND

[0002] The existing replaceable bottom adjustment jack is generally fixed to the hydraulic support by bolt structure, but it is not easy to prevent corrosion under complex conditions, and once the bolt for fixing the bottom adjustment jack is corroded, the bottom adjustment jack is difficult to replace, so how to solve this technical problem becomes the research direction of the technical personnel in the field. UTILITY MODEL CONTENTS

[0003] The utility model aims at overcoming the defects of the prior art, providing a replaceable bottom adjustment jack mounting structure for coal mine hydraulic support to solve the technical problems in the background art.

[0004] The utility model aims at overcoming the defects of the prior art, providing a replaceable bottom adjustment jack mounting structure for coal mine hydraulic support to solve the technical problems in the background art.

[0005] A replaceable bottom adjustment jack mounting structure for coal mine hydraulic support, comprising a base, the base comprising a bottom plate, the bottom plate being provided with a first main rib plate and a second main rib plate, the second main rib plate being provided with an ear plate, the cylinder head of the bottom adjustment jack being hinged to the ear plate through a latch A; an installation plate fixed to the bottom plate is arranged between the first main rib plate and the second main rib plate, the installation plate being provided with a first arc-shaped groove opposite the ear plate, an arc-shaped pressing block being fixedly installed above the installation plate, the arc-shaped pressing block having a second arc-shaped groove, the cylinder body of the bottom adjustment jack being arranged in a cavity formed by the second arc-shaped groove and the first arc-shaped groove; the first main rib plate is provided with a through hole opposite the installation plate; the telescopic end of the bottom adjustment jack passes through the through hole.

[0006] In the above utility model contents, further, the two sides of the installation plate are respectively provided with vertical plates fixed to the bottom plate, a first reinforcing rib plate is arranged between the outer walls of the vertical plate and the installation plate, a limiting plate is arranged between the first reinforcing rib plate and the first main rib plate, and limiting blocks are arranged on the two side walls of the arc-shaped pressing block and abut against the lower surface of the limiting plate.

[0007] In the above utility model contents, further, the outer surface of the arc-shaped pressing block is provided with a connecting plate and a main rib limiting plate abutting against the first main rib plate, the connecting plate being provided with a first pin hole.

[0008] In the above utility model contents, further, a slot is arranged on the side wall of the limiting plate close to the first reinforcing rib plate, a retreat-stopping plug-in plate is plug-in installed in the slot, the retreat-stopping plug-in plate being provided with a second pin hole, and a latch B passes through the second pin hole and the first pin hole to fix the retreat-stopping plug-in plate and the connecting plate.

[0009] Further, the first reinforcing rib plate and the second main rib plate are provided with a second reinforcing rib plate fixed on the outer wall on both sides of the mounting plate.

[0010] Further, the upper part of the vertical plate is provided with a cover plate, and the cover plate is provided with a mounting port.

[0011] Further, the outer wall of the first reinforcing rib plate near the mounting plate is provided with a missing slot matched with the limiting block.

[0012] The beneficial effects of the present application are as follows:

[0013] The installation structure of the bottom-adjusting jack is improved, and the installation of the bottom-adjusting jack does not need to be fixed by bolts, so that the problem of difficult replacement of the bottom-adjusting jack caused by corrosion of the fixing bolts of the traditional bottom-adjusting jack is overcome. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the present application;

[0015] Figure 2 It is an A-A sectional view of Figure 1

[0016] Figure 3 It is a structural schematic view of the base of the present application;

[0017] Figure 4 It is a front view of the arc-shaped pressing block of the present application;

[0018] Figure 5 It is a top view of the arc-shaped pressing block of the present application;

[0019] Figure 6 It is a structural schematic view of the stopper inserting plate of the present application.

[0020] In the figure, 1 is a base, 2 is a bottom-adjusting jack, 3 is a bolt A, 4 is an arc-shaped pressing block, 5 is a stopper inserting plate, 6 is a bolt B, 1.1 is a bottom plate, 1.2 is a first main rib plate, 1.3 is a second main rib plate, 1.4 is an ear plate, 1.5 is a mounting plate, 1.6 is a through hole, 1.7 is a vertical plate, 1.8 is a first reinforcing rib plate, 1.9 is a limiting plate, 1.10 is an inserting slot, 1.11 is a second reinforcing rib plate, 1.12 is a cover plate, 1.13 is a mounting port, 4.1 is a limiting block, 4.2 is a connecting plate, 4.3 is a main rib limiting plate, 4.4 is a first pin hole, and 5.1 is a second pin hole. DETAILED DESCRIPTION

[0021] ​The following embodiments and features thereof will be described in detail. Based upon these descriptions, persons skilled in the art can easily derive other advantages and effects of the present application. The present application can also be implemented or applied in other different embodiments, and various modifications or changes can be made to the details without departing from the spirit of the present application. It should be noted that the following embodiments and features thereof can be combined with each other without conflict.

[0022] It should be noted that the drawings provided in the following embodiments only schematically illustrate the basic concept of the present application, and only the components related to the present application are shown in the drawings, rather than being drawn according to the number, shape and size of the components in actual implementation. The shape, number and proportion of each component in actual implementation can be arbitrarily changed, and the layout pattern of the components can be more complex.

[0023] Embodiment:

[0024] A replaceable bottom-adjusting jack mounting structure for a coal mine hydraulic support, as shown in the accompanying Figure 1 -attached Figure 3 The mounting structure comprises a base 1, the base 1 comprises a bottom plate 1.1, a first main rib plate 1.2 and a second main rib plate 1.3 are arranged on the bottom plate 1.1, and an ear plate 1.4 is arranged on the second main rib plate 1.3. An installation plate 1.5 fixed on the bottom plate 1.1 is arranged between the first main rib plate 1.2 and the second main rib plate 1.3, a first arc-shaped groove opposite to the ear plate 1.4 is arranged on the installation plate 1.5, and an arc-shaped pressing block 4 is fixedly installed above the installation plate 1.5. As shown in the accompanying Figure 4 and attached Figure 5 The arc-shaped pressing block 4 has a second arc-shaped groove, and the cylinder body of the bottom-adjusting jack 2 is arranged in a cavity formed by the second arc-shaped groove and the first arc-shaped groove. The first main rib plate 1.2 is provided with a through hole 1.6 opposite to the installation plate 1.5, and the telescopic end of the bottom-adjusting jack 2 passes through the through hole 1.6.

[0025] Further, as shown in the accompanying Figure 2 and attached Figure 3 The two sides of the installation plate 1.5 are respectively provided with a vertical plate 1.7 fixed on the bottom plate 1.1, a first reinforcing rib plate 1.8 is arranged between the outer wall of the vertical plate 1.7 and the installation plate 1.5, and a limiting plate 1.9 is arranged between the first reinforcing rib plate 1.8 and the first main rib plate 1.2. In combination with the accompanying Figure 4 and attached Figure 2 The two side walls of the arc-shaped pressing block 4 are provided with limiting blocks 4.1 abutting against the lower surface of the limiting plate 1.9. The limiting blocks 4.1 can limit the action of the arc-shaped pressing block 4 in the height direction of the installation plate 1.5, and prevent the arc-shaped pressing block 4 from falling off the installation plate 1.5.

[0026] Further, continue to refer to the accompanying drawings Figure 4 and the accompanying drawings Figure 5 As shown in the drawings, the outer surface of the arc-shaped pressing block 4 is provided with a connecting plate 4.2 and a main reinforcement limiting plate 4.3 abutting on the first main reinforcement plate 1.2, and the connecting plate 4.2 is provided with a first pin hole 4.4. As shown in the drawings, the side wall of the limiting plate 1.9 near the first reinforcing rib plate 1.8 is provided with a slot 1.10, and as shown in the drawings Figure 3 As shown in the drawings, the slot 1.10 is inserted with a retreat stop plate 5, the retreat stop plate 5 is provided with a second pin hole 5.1, and the pin B6 passes through the second pin hole 5.1 and the first pin hole 4.4 to fix the retreat stop plate 5 and the connecting plate 4.2. In this embodiment, the retreat stop plate 5 is inserted in the slot 1.10, and the retreat stop plate 5 is fixed with the connecting plate 4.2 of the arc-shaped pressing block 4 by the pin B6, thereby limiting the action of the arc-shaped pressing block 4 along the length direction of the mounting plate 1.5. Prevent the arc-shaped pressing block 4 from sliding along the length direction of the mounting plate 1.5. Figure 1 Figure 2 As shown in the drawings, the slot 1.10 is inserted with a retreat stop plate 5, the retreat stop plate 5 is provided with a second pin hole 5.1, and the pin B6 passes through the second pin hole 5.1 and the first pin hole 4.4 to fix the retreat stop plate 5 and the connecting plate 4.2. In this embodiment, the retreat stop plate 5 is inserted in the slot 1.10, and the retreat stop plate 5 is fixed with the connecting plate 4.2 of the arc-shaped pressing block 4 by the pin B6, thereby limiting the action of the arc-shaped pressing block 4 along the length direction of the mounting plate 1.5. Prevent the arc-shaped pressing block 4 from sliding along the length direction of the mounting plate 1.5.

[0027] More preferably, the first reinforcing rib plate 1.8 and the second main reinforcement plate 1.3 are provided with a second reinforcing rib plate 1.11 fixed on the outer walls on both sides of the mounting plate 1.5. Further strengthen the installation stability of the bottom-adjusting jack 2. Secondly, in order to better protect the bottom-adjusting jack 2, as shown in the drawings Figure 2 As shown in the drawings, the upper part of the vertical plate 1.7 is provided with a cover plate 1.12, and the cover plate 1.12 is provided with a mounting port 1.13.

[0028] Specifically, during the installation process of the bottom-adjusting jack 2, the bottom-adjusting jack 2 is placed obliquely downward from the mounting port 1.13 of the cover plate 1.12 with the cylinder bottom downward, and the telescopic end of the bottom-adjusting jack 2 passes through the through hole 1.6 on the first main reinforcement plate 1.2. Adjust the bottom-adjusting jack 2 and place it in the first arc-shaped groove of the mounting plate 1.5, and the cylinder head of the bottom-adjusting jack 2 is hinged to the lug plate 1.4 by the pin A3, thereby fixing the cylinder head of the bottom-adjusting jack 2. Adjust the arc-shaped pressing block 4, and place it on the cylinder barrel of the bottom-adjusting jack 2 from the mounting port 1.13 of the cover plate 1.12, and move the arc-shaped pressing block 4 from the second reinforcing rib plate 1.11 to the first reinforcing rib plate 1.8. It should be noted that, as shown in the drawings Figure 3 ​As shown, the first reinforcing rib plate 1.8 is provided with a missing slot 1.14 on the outer wall near the side of the mounting plate 1.5. In the moving process of the arc-shaped pressing block 4, the limiting block 4.1 can pass through the first reinforcing rib plate 1.8 through the missing slot 1.14 and abut against the lower surface of the limiting plate 1.9. When the main rib limiting plate 4.3 of the arc-shaped pressing block 4 abuts against the first main rib plate 1.2, the retreat stop plug 5 is inserted into the insertion slot 1.10, and finally the connecting plate 4.2 is locked with the retreat stop plug 5 by using the plug B6. The installation of the bottom adjusting jack 2 is completed. After the installation is completed, the cylinder body of the bottom adjusting jack 2 is placed in the circular cavity formed by the first arc-shaped slot and the second arc-shaped slot, and the telescopic end can be telescopically extended in and out through the through hole 1.6.

[0029] In summary, the utility model provides a replaceable bottom adjusting jack mounting structure for a coal mine hydraulic support, the bottom adjusting jack 2 does not need to be fixed by using bolts, and the problem that the traditional bottom adjusting jack is difficult to disassemble and replace due to corrosion of the fixing bolts is overcome, so the utility model is suitable for popularization and use.

[0030] The above-described embodiments only express the specific implementation of the utility model, and the description is more specific and detailed, but it cannot be understood as a limitation on the patent range of the utility model. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which belong to the protection range of the utility model.

Claims

1. A replaceable bottom adjustment jack mounting structure for a coal mine hydraulic support, characterized by, The base comprises a bottom plate, a first main rib plate and a second main rib plate are arranged on the bottom plate, an ear plate is arranged on the second main rib plate, and a cylinder head of a bottom adjusting jack is hinged to the ear plate through a bolt A; a mounting plate fixed to the bottom plate is arranged between the first main rib plate and the second main rib plate, the mounting plate is provided with a first arc-shaped slot opposite to the ear plate, an arc-shaped pressing block is fixedly installed above the mounting plate, the arc-shaped pressing block has a second arc-shaped slot, a cylinder body of the bottom adjusting jack is arranged in a cavity formed by the second arc-shaped slot and the first arc-shaped slot, a through hole opposite to the mounting plate is arranged on the first main rib plate, and a telescopic end of the bottom adjusting jack passes through the through hole.

2. The replaceable bottom adjustment jack mounting structure for a coal mine hydraulic support according to claim 1, characterized in that, Two sides of the mounting plate are respectively provided with a vertical plate fixed to the bottom plate, a first reinforcing rib plate is arranged between the vertical plate and the outer wall of the mounting plate, a limiting plate is arranged between the first reinforcing rib plate and the first main rib plate, and a limiting block abutting against a lower surface of the limiting plate is arranged on the two side walls of the arc-shaped pressing block.

3. The replaceable bottom adjustment jack mounting structure for a coal mine hydraulic support according to claim 2, characterized in that, An outer surface of the arc-shaped pressing block is provided with a connecting plate and a main rib limiting plate abutting against the first main rib plate, and the connecting plate is provided with a first pin hole.

4. The replaceable bottom adjustment jack mounting structure for a coal mine hydraulic support according to claim 3, characterized in that, A side wall of the limiting plate near the first reinforcing rib plate is provided with a slot, a retreat-stopping plug plate is inserted into the slot, the retreat-stopping plug plate is provided with a second pin hole, and a bolt B passes through the second pin hole and the first pin hole to fix the retreat-stopping plug plate and the connecting plate.

5. The replaceable bottom adjustment jack mounting structure for a coal mine hydraulic support according to claim 2, characterized in that, A second reinforcing rib plate is arranged between the first reinforcing rib plate and the second main rib plate and fixed to the outer walls of the two sides of the mounting plate.

6. The replaceable bottom adjustment jack mounting structure for a coal mine hydraulic support according to claim 2, characterized in that, A cover plate is arranged above the vertical plate, and the cover plate is provided with a mounting opening.

7. The replaceable bottom-adjusted jack mounting structure for a coal mine hydraulic support according to claim 6, characterized in that, An outer wall of the first reinforcing rib plate near the mounting plate is provided with a missing slot matched with the limiting block.

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