CN211598719U

CN211598719U - Hydraulic support limiting device for coal mine

Info

Publication number: CN211598719U
Application number: CN201922338638.7U
Authority: CN
Inventors: 上官科峰; 史庆科; 莫栋; 孙峰
Original assignee: Huating Coal Group Co Ltd
Current assignee: Huating Coal Group Co Ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-09-29
Anticipated expiration: 2029-12-24

Abstract

The utility model provides a hydraulic support stop device for coal mine. Hydraulic support stop device for coal mine includes hydraulic operation platform, the equal fixedly connected with mounting panel in hydraulic operation platform's both sides, the top fixedly connected with fixed plate of mounting panel, two spacing frame of fixedly connected with between the top of fixed plate, hydraulic operation platform's top evenly is provided with the valve rod, the top of valve rod is run through spacing frame and is extended to the top of spacing frame, the top of spacing frame and the both sides that are located the valve rod run through respectively have first lock nut and second lock nut. The utility model provides a hydraulic support stop device for coal mine makes in production or maintenance process, personnel operation support valve block handle, under the condition that stop device did not open, can not operate the valve block, effectually prevented personnel maloperation and the improper possibility of operation, improved the regional factor of safety of operation, the device can automatic re-setting block convenient to use with the valve rod.

Description

Hydraulic support limiting device for coal mine

Technical Field

The utility model relates to a colliery apparatus for producing field especially relates to a hydraulic support stop device for coal mine.

Background

The hydraulic support is a structure used for controlling the mine pressure of a coal face, the mine pressure of the coal face acts on the hydraulic support in an external load mode, and in a mechanical system in which the hydraulic support and surrounding rock of the coal face interact, if the resultant force of all supporting pieces of the hydraulic support and the resultant force of the external load of a top plate acting on the hydraulic support are exactly in the same straight line, the hydraulic support is very suitable for the surrounding rock of the coal face.

At present, an existing hydraulic support does not have an effective limiting device in the production or maintenance process, so that the device is easily opened by misoperation, the possibility of misoperation and improper operation of workers is improved, and the safety factor of an operation area is improved.

Therefore, it is necessary to provide a hydraulic support limiting device for coal mines to solve the technical problem.

SUMMERY OF THE UTILITY MODEL

The utility model provides a hydraulic support stop device for coal mine has solved the lower problem of prior art factor of safety.

For solving the technical problem, the utility model provides a hydraulic support stop device for coal mine includes hydraulic operation platform, the equal fixedly connected with mounting panel in both sides of hydraulic operation platform, the top fixedly connected with fixed plate of mounting panel, two spacing frame of fixedly connected with between the top of fixed plate, hydraulic operation platform's top evenly is provided with the valve rod, the top of valve rod is run through spacing frame and is extended to the top of spacing frame, first lock nut and second lock nut have been run through respectively in the top of spacing frame and the both sides that are located the valve rod, it has first accommodate the lead screw to run through on the first lock nut, it has the second accommodate the lead screw to run through on the second lock nut.

Preferably, the first carousel of first accommodate the lead screw's top fixedly connected with, the second accommodate the lead screw's top fixedly connected with second carousel, the bottom of the inner wall of spacing frame just is located the first mount pad of both sides difference fixedly connected with and the second mount pad of valve rod, the front and the back of first mount pad all rotate and are connected with first pivot, the fixed surface of first pivot is connected with first depression bar, the first connecting block of one end fixed connection of first depression bar, the front and the back of second mount pad all rotate and are connected with the second pivot, the fixed surface of second pivot is connected with the second depression bar.

Preferably, a first clamping block is fixedly connected between one side of each of the two first connecting blocks, and one side of the first clamping block is in contact with the surface of the valve rod.

Preferably, a first pressure plate is fixedly connected between opposite sides of the two first pressure rods and right below the first adjusting screw rod, and a first return spring is sleeved between the bottom of the first pressure rod and the bottom of the inner wall of the limiting frame.

Preferably, a second return spring is sleeved between the bottom of the second pressure lever and the bottom of the inner wall of the limiting frame, and the bottom of the inner wall of the limiting frame is fixedly connected with a limiting block which is located on the back of the valve rod.

Preferably, one end of each second pressure lever is fixedly connected with a second connecting block, and a second pressure plate is fixedly connected between the two opposite sides of the second pressure levers and under the second adjusting screw rod.

Preferably, a second clamping block is fixedly connected between one side of each of the two second connecting blocks, and the second adjusting screw rod is in contact with the second pressing plate.

Compared with the prior art, the utility model provides a hydraulic support stop device for coal mine has following beneficial effect:

the utility model provides a coal mine hydraulic support limiting device, which is used by matching a first locknut, a second locknut, a first adjusting screw rod, a second adjusting screw rod, a first rotary disc, a second rotary disc, a first mounting seat, a second mounting seat, a first rotary shaft, a first pressure rod and a second pressure rod, so that in the production or maintenance process, a person can not operate a valve block handle of a support under the condition that the limiting device is not opened, thereby effectively preventing the possibility of misoperation and improper operation of the person, improving the safety factor of an operation area, and clamping a valve rod by matching a first clamping block, a first reset spring, a second rotary shaft, a second pressure rod, a second connecting block, a second clamping block, a second reset spring, a first pressure plate and a second pressure plate, is convenient to use.

Drawings

Fig. 1 is a schematic structural view of a preferred embodiment of a hydraulic support limiting device for a coal mine according to the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is a partially enlarged view of the structure shown at B in FIG. 2;

FIG. 4 is a schematic top view of the structure of the limiting frame shown in FIG. 1;

FIG. 5 is an enlarged partial view of FIG. 5 at C;

fig. 6 is a schematic top view of the structure of the limiting block shown in fig. 3.

Reference numbers in the figures: 1. the hydraulic pressure operation panel, 2, the mounting panel, 3, the fixed plate, 4, spacing frame, 5, the valve rod, 6, first locknut, 7, second locknut, 8, first accommodate the lead screw, 9, second accommodate the lead screw, 10, first carousel, 11, the second carousel, 12, first mount pad, 13, first pivot, 14, first depression bar, 15, first connecting block, 16, first fixture block, 17, first reset spring, 18, the second mount pad, 19, the second pivot, 20, the second depression bar, 21, the second connecting block, 22, the second fixture block, 23, the second reset spring, 24, the stopper, 25, first clamp plate, 26, the second clamp plate.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

Please refer to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6 in combination, wherein fig. 1 is a schematic structural diagram of a preferred embodiment of a coal mine hydraulic bracket limiting device according to the present invention; FIG. 2 is an enlarged view of a portion A of FIG. 1; FIG. 3 is a partially enlarged view of the structure shown at B in FIG. 2; FIG. 4 is a schematic top view of the structure of the limiting frame shown in FIG. 1; FIG. 5 is an enlarged partial view of FIG. 5 at C; fig. 6 is a schematic top view of the structure of the limiting block shown in fig. 3. The coal mine hydraulic support limiting device comprises a hydraulic operating platform 1, wherein both sides of the hydraulic operating platform 1 are fixedly connected with mounting plates 2, the top of each mounting plate 2 is fixedly connected with a fixing plate 3, a limiting frame 4 is fixedly connected between the tops of the two fixing plates 3, the top of the hydraulic operating platform 1 is uniformly provided with five valve rods 5, the top ends of the valve rods 5 penetrate through the limiting frame 4 and extend to the top of the limiting frame 4, the front side of the limiting frame 4 and the position right ahead of the valve rods 5 are provided with penetrating grooves matched with the valve rods 5, the top of the limiting frame 4 and the positions at both sides of the valve rods 5 are respectively penetrated with a first check nut 6 and a second check nut 7, a first adjusting screw rod 8 penetrates through the first check nut 6, a second adjusting screw rod 9 penetrates through the second check nut 7, and the first check nut 6 is in threaded connection with the first adjusting screw rod 8, the second locknut 7 is in threaded connection with the second adjusting screw 9.

The top end of the first adjusting screw rod 8 is fixedly connected with a first rotary disc 10, the number of the first adjusting screw rods 8 is five, the number of the second adjusting screw rods 9 is five, the top end of the second adjusting screw rod 9 is fixedly connected with a second rotary disc 11, the number of the second rotary disc 11 is five, the number of the first rotary disc 10 is five, the bottom of the inner wall of the limiting frame 4 and the two sides of the valve rod 5 are respectively and fixedly connected with a first mounting seat 12 and a second mounting seat 18, the front surface and the back surface of the first mounting seat 12 are respectively and rotatably connected with a first rotary shaft 13, the surface of the first rotary shaft 13 is fixedly connected with a first pressure rod 14, the number of the first rotary shafts 13 is ten, the number of the first pressure rods 14 is ten, the shape of the first pressure rod 14 is V-shaped, one end of the first pressure rod 14 is fixedly connected with a first connecting block 15, the front surface and the back surface of the second mounting seat 18 are respectively and rotatably, the number of the first installation seats 12 is five, the number of the second installation seats 18 is five, the number of the second rotating shafts 19 is ten, the number of the second pressing rods 20 is ten, the shape of the second pressing rods 20 is a V shape, and the surface of the second rotating shaft 19 is fixedly connected with the second pressing rods 20.

Preferably, a first clamping block 16 is fixedly connected between one side of the two first connecting blocks 15, a groove matched with the valve rod 5 is formed in the first clamping block 16, and one side of the first clamping block 16 is in contact with the surface of the valve rod 5.

A first pressing plate 25 is fixedly connected between opposite sides of the two first pressing rods 14 and right below the first adjusting screw rod 8, first return springs 17 are sleeved between the bottoms of the first pressing rods 14 and the bottom of the inner wall of the limiting frame 4, the number of the first return springs 17 is ten, and elastic tension is provided for the first pressing rods 14.

The second reset spring 23 is sleeved between the bottom of the second pressure lever 20 and the bottom of the inner wall of the limiting frame 4, the second reset spring 23 has elastic tension on the second pressure lever 20, the number of the second reset springs 23 is ten, the number of the second pressure lever 20 is ten, the bottom of the inner wall of the limiting frame 4 is fixedly connected with a limiting block 24 located on the back side of the valve rod 5, and the limiting block 24 limits the valve rod 5.

One end of the second pressure lever 20 is fixedly connected with a second connecting block 21, a second pressure plate 26 is fixedly connected between the opposite sides of the two second pressure levers 20 and under the second adjusting screw 9, and the number of the second pressure plates 26 is five.

A second fixture block 22 is fixedly connected between one side of each of the two second connecting blocks 21, the number of the second fixture blocks 22 is five, a groove matched with the valve rod 5 is formed in each second fixture block 22, the surface of the groove of the valve rod 5 on each second fixture block 22 is in contact, and the second adjusting screw 9 is in contact with the second pressing plate 26.

The utility model provides a hydraulic support stop device for coal mine's theory of operation as follows:

when the device is used, the first rotary disc 10 is rotated to drive the first adjusting screw rod 8 to rotate in the first anti-loose nut 6 and move downwards while rotating, the first adjusting screw rod 8 moves downwards while pressing the first pressing plate 25 downwards, so that one end of the first pressing rod 14 far away from the valve rod 5 is driven to press downwards, the first pressing rod 14 rotates on the first mounting seat 12 through the first rotating shaft 13, the first connecting block 15 on the other end is driven to move upwards, the first clamping block 16 also moves upwards, the other end of the first pressing rod 14 moves upwards while stretching the first reset spring 17, when the first rotary disc 10 cannot rotate, the bottom end of the first adjusting screw rod 8 presses one end of the first pressing rod 14 to be in contact with the bottom of the inner wall of the limiting frame 4, the first clamping block 16 does not contact with the valve rod 5 any more at the moment, and the second rotary disc 11 is rotated simultaneously, thereby driving the second adjusting screw 9 to rotate inside the second locknut 7 and move downwards while rotating, while the second adjusting screw 9 moves downwards, pressing the second pressing plate 26 downwards to drive one end of the second pressing rod 20 away from the valve rod 5 to press downwards, so that the second pressing rod 20 rotates on the second mounting seat 18 through the second rotating shaft 19, thereby driving the second connecting block 21 on the other end to move upwards, so that the second clamping block 22 also moves upwards, while the other end of the second pressing rod 20 moves upwards, stretching the second return spring 23, when the second turntable 11 cannot rotate, the bottom end of the second adjusting screw 9 presses one end of the second pressing rod 20 to be in contact with the bottom of the inner wall of the limiting frame 4, at this time, the second clamping block 22 is not in contact with the valve rod 5 any more, the first clamping block 16 and the second clamping block 22 are not in cooperation with the valve rod 5 any more, valve rod 5 can be carried out hydraulic pressure operation debugging by the pulling, when not using hydraulic support, need reset valve rod 5, can accomplish the reseing of valve rod with the operation step reverse order operation of device, stopper 24 carries on spacingly to valve rod 5, do not remove between first fixture block 16 and the second fixture block 22 when preventing that valve rod 5 from reseing, after first accommodate the lead screw 8 and the reseing of second accommodate the lead screw 9, first reset spring 17 and second reset spring 23 can drive first depression bar 14 and second depression bar 20 and reset, block valve rod 5.

through the matching use of the first locknut 6, the second locknut 7, the first adjusting screw 8, the second adjusting screw 9, the first rotary disc 10, the second rotary disc 11, the first mounting seat 12, the second mounting seat 18, the first rotary shaft 13, the first pressure lever 14 and the second pressure lever 20, in the production or maintenance process, a person can not operate the valve plate when operating the valve plate handle of the bracket and the limiting device is not opened, the possibility of misoperation and improper operation of the person is effectively prevented, the safety factor of an operation area is improved, the device can automatically reset to clamp the valve rod 5 after the valve rod 5, the first adjusting screw 8 and the second adjusting screw 9 reset, is convenient to use.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. The utility model provides a hydraulic support stop device for coal mine, includes hydraulic pressure operation panel (1), its characterized in that: the equal fixedly connected with mounting panel (2) in both sides of hydraulic operation platform (1), the top fixedly connected with fixed plate (3) of mounting panel (2), two spacing frame (4) of fixedly connected with between the top of fixed plate (3), the top of hydraulic operation platform (1) evenly is provided with valve rod (5), the top of valve rod (5) is run through spacing frame (4) and is extended to the top of spacing frame (4), the top of spacing frame (4) and the both sides that are located valve rod (5) are run through respectively and are had first check nut (6) and second check nut (7), it has first accommodate the lead screw (8) to run through on first check nut (6), it has second accommodate the lead screw (9) to run through on second check nut (7).

2. The coal mine hydraulic support limiting device according to claim 1, wherein a first rotary table (10) is fixedly connected to the top end of the first adjusting screw rod (8), the top end of the second adjusting screw rod (9) is fixedly connected with a second turntable (11), the bottom of the inner wall of the limiting frame (4) and two sides of the valve rod (5) are respectively and fixedly connected with a first mounting seat (12) and a second mounting seat (18), the front and the back of the first mounting seat (12) are both rotationally connected with a first rotating shaft (13), the surface of the first rotating shaft (13) is fixedly connected with a first pressure lever (14), one end of the first pressure lever (14) is fixedly connected with a first connecting block (15), the front surface and the back surface of the second mounting seat (18) are both rotationally connected with a second rotating shaft (19), and the surface of the second rotating shaft (19) is fixedly connected with a second pressure lever (20).

3. The coal mine hydraulic support limiting device as claimed in claim 2, wherein a first clamping block (16) is fixedly connected between one side of the two first connecting blocks (15), and one side of the first clamping block (16) is in contact with the surface of the valve rod (5).

4. The coal mine hydraulic support limiting device according to claim 2, wherein a first pressure plate (25) is fixedly connected between opposite sides of the two first pressure rods (14) and right below the first adjusting screw rod (8), and a first return spring (17) is sleeved between the bottom of the first pressure rod (14) and the bottom of the inner wall of the limiting frame (4).

5. The coal mine hydraulic support limiting device according to claim 2, wherein a second return spring (23) is sleeved between the bottom of the second pressure rod (20) and the bottom of the inner wall of the limiting frame (4), and a limiting block (24) is fixedly connected to the bottom of the inner wall of the limiting frame (4) and the back of the valve rod (5).

6. The coal mine hydraulic support limiting device according to claim 2, wherein one end of each second pressure rod (20) is fixedly connected with a second connecting block (21), and a second pressure plate (26) is fixedly connected between opposite sides of the two second pressure rods (20) and is positioned right below the second adjusting screw rod (9).

7. The coal mine hydraulic support limiting device according to claim 6, wherein a second clamping block (22) is fixedly connected between one side of the two second connecting blocks (21), and the second adjusting screw rod (9) is in contact with a second pressing plate (26).