CN211715149U

CN211715149U - Coal mine tunnel supporting device

Info

Publication number: CN211715149U
Application number: CN202020185902.8U
Authority: CN
Inventors: 高敬烈
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-02-19
Filing date: 2020-02-19
Publication date: 2020-10-20
Anticipated expiration: 2030-02-19

Abstract

The utility model discloses a coal mine tunnel supporting device in supporting device technical field, including the footing, its characterized in that: the footing is equipped with two and is the symmetry and places, the fixed first support post that is equipped with in footing top, the inside hydraulic pressure chamber that is equipped with of first support post, hydraulic pressure chamber upper portion is equipped with the second support column, hydraulic pressure chamber rear sliding connection dog, the dog rear is equipped with first threaded rod, the first backup pad of second support column upper end fixed connection, first backup pad top is equipped with the dovetail, sliding connection second backup pad in the dovetail, the first stopper of second support column outer wall fixed connection, the first screw thread section of thick bamboo of first stopper articulated, first screw thread section of thick bamboo threaded connection second threaded rod, the second threaded section of thick bamboo of second threaded rod other end threaded connection second, the articulated second stopper of second screw thread section of thick bamboo, the utility model discloses, it is adjustable to strut height-adjustable, and it is adjustable to strut the width, and the material is recoverable used repeatedly.

Description

Coal mine tunnel supporting device

Technical Field

The utility model relates to a coal mine tunnel supporting device technical field specifically is a coal mine tunnel supporting device.

Background

Coal mines in China are mainly underground mining, a large number of roadways need to be excavated underground, and roadway support is adopted to keep the roadways smooth and surrounding rocks stable, so that the method has important significance for coal mine construction and production.

The basic purpose of supporting the roadway is to alleviate and reduce the movement of surrounding rocks, so that the section of the roadway is not excessively reduced, and meanwhile, the scattered and damaged surrounding rocks are prevented from falling. The roadway supporting effect is not only dependent on the supporting force of the support, but also influenced by a series of factors such as the properties of surrounding rocks, the mechanical properties (supporting force and flexibility) of the support, the installation density of the support, the time of installing the support, the installation quality of the support and the contact mode (point contact or surface contact) with the surrounding rocks.

However, at present, the existing roadway supporting device is stiff and inflexible, can only be customized according to the actual height and width of a roadway, is poor in universality, and materials are not easy to recover.

Based on this, the utility model designs a coal mine tunnel supporting device to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a colliery tunnel supporting device to current tunnel supporting device who proposes in solving above-mentioned background art is stiff comparatively, and is not flexible, can only customize according to tunnel actual height and width, and the commonality is poor, and the difficult problem of retrieving of material.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a coal mine tunnel supporting device, includes the footing, its characterized in that: the two symmetrical bottom feet are arranged, a first supporting column is fixedly arranged above the bottom feet, a hydraulic cavity is arranged inside the first supporting column, a second supporting column is arranged at the upper part of the hydraulic cavity, a stop block is connected behind the hydraulic cavity in a sliding mode, a first threaded rod is arranged behind the stop block, and the other end of the first threaded rod is fixedly connected with a first elastic ring; the utility model discloses a novel support structure, including first backup pad, first threaded section of thick bamboo, first backup pad upper end fixed connection first backup pad, first backup pad top is equipped with the dovetail, sliding connection second backup pad in the dovetail, another second backup pad of second backup pad right side below fixed connection, the first stopper of second backup pad outer wall fixed connection, the first threaded section of thick bamboo of first stopper hinge, first threaded section of thick bamboo threaded connection second threaded rod, second threaded section of thick bamboo middle part is equipped with the second elasticity ring, second threaded section of thick bamboo of second threaded section of thick bamboo other end threaded connection second threaded section of thick bamboo, the articulated second stopper of second threaded section of thick bamboo, second stopper and first backup pad sliding connection, second stopper right side structure is constitu.

As a further proposal of the utility model, the first threaded rod is connected with the dog rotation, the threaded rod is connected the position outer wall with the dog and is smooth.

As a further aspect of the utility model, second support column lower extreme is sealed with hydraulic pressure intracavity wall connection position, the dog is sealed with hydraulic pressure intracavity wall connection position.

As a further aspect of the utility model, first support column rear end is equipped with the internal thread hole, first threaded rod is threaded connection with first support column connected mode.

As a further aspect of the present invention, the first elastic ring and the second elastic ring are circumferentially provided with a first groove and a second groove, respectively.

As a further aspect of the present invention, the second threaded rod uses the second elastic ring as a boundary, and the left and right sides threads are opposite in direction.

As a further aspect of the present invention, the first stopper includes a front stopper and a rear stopper, the front stopper and the rear stopper are connected by a bolt.

Compared with the prior art, the beneficial effects of the utility model are that:

1. through fixed first support column that sets up in footing top, the inside hydraulic pressure chamber that sets up of first support column, hydraulic pressure chamber upper portion sets up the second support column, hydraulic pressure chamber rear sliding connection dog, the dog rear sets up first threaded rod, and first threaded rod rotates with the dog to be connected for strutting arrangement height can be according to the adjustment of tunnel actual conditions.

2. Through the first backup pad of second support column upper end fixed connection, first backup pad top is equipped with the dovetail, sliding connection second backup pad in the dovetail for strutting arrangement width can be according to tunnel actual conditions adjustment.

3. The utility model discloses whole mechanical structure that adopts, easy dismounting need not pierce through the tunnel wall and go deep into the geological stratification, but material recycle.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1 according to the present invention;

fig. 3 is a partial cross-sectional view of the present invention;

fig. 4 is an enlarged view of a portion B of fig. 3 according to the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1-bottom foot, 2-first supporting column, 3-hydraulic cavity, 4-second supporting column, 5-stop block, 6-first threaded rod, 7-first elastic ring, 8-first supporting plate, 9-dovetail groove, 10-second supporting plate, 11-first limiting block, 12-first threaded cylinder, 13-second threaded rod, 14-second elastic ring, 15-second threaded cylinder, 16-second limiting block, 17-internal threaded hole, 18-first groove, 19-second groove, 20-front limiting block and 21-rear limiting block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution:

a coal mine roadway supporting device comprises a footing 1, wherein two footing 1 are symmetrically arranged, a first supporting column 2 is fixedly arranged above the footing 1, a hydraulic cavity 3 is arranged inside the first supporting column 2, a second supporting column 4 is arranged at the upper part of the hydraulic cavity 3, a stop block 5 is slidably connected behind the hydraulic cavity 3, a first threaded rod 6 is arranged behind the stop block 5, and the other end of the first threaded rod 6 is fixedly connected with a first elastic ring 7; the upper end of the second support column 4 is fixedly connected with a first support plate 8, a dovetail groove 9 is arranged above the first support plate 8, and a second support plate 10 is slidably connected in the dovetail groove 9, so that the width of the supporting device can be adjusted according to the actual condition of a roadway; the lower part of the right side of the second support plate 10 is fixedly connected with another second support column 4, the outer wall of the second support column 4 is fixedly connected with a first limiting block 11, the first limiting block 11 is hinged with a first thread cylinder 12, the first thread cylinder 12 is in threaded connection with a second thread rod 13, a second elastic ring 14 is arranged in the middle of the second thread rod 13, the other end of the second thread rod 13 is in threaded connection with a second thread cylinder 15, the second thread cylinder 15 is hinged with a second limiting block 16, the second limiting block 16 is in sliding connection with the first support plate 8, and the second limiting block 16 can be adjusted according to the extending length of the second support plate 10 to enable the second limiting block 16 to be always positioned in the middle position; the right side structure of the second stopper 16 is the same as the left side.

The first threaded rod 6 is rotatably connected with the stop block 5, the threaded rod rotates, and the stop block 5 does not rotate, so that the stop block 5 is conveniently pushed; the outer wall of the connecting part of the threaded rod and the stop block 5 is smooth, the connecting part of the lower end of the second support column 4 and the inner wall of the hydraulic cavity 3 is sealed, and the connecting part of the stop block 5 and the inner wall of the hydraulic cavity 3 is sealed, so that hydraulic oil is changed into a medium for power transmission according with a hydraulic principle; the rear end of the first support column 2 is provided with an internal threaded hole 17, the first threaded rod 6 is in threaded connection with the first support column 2, and the circumferences of the first elastic ring 7 and the second elastic ring 14 are respectively provided with a first groove 18 and a second groove 19, so that a wrench can be conveniently inserted, and the space is saved; the second threaded rod 13 takes the second elastic ring 14 as a boundary, and the left and right thread directions are opposite, so that when the second threaded rod 13 rotates, the first thread cylinder 12 and the second thread cylinder 15 can contract simultaneously and extend simultaneously; the first limiting block 11 comprises a front limiting block 20 and a rear limiting block 21, and the front limiting block 20 is connected with the rear limiting block 21 through bolts.

One specific application of this embodiment is:

use the utility model discloses in the time with two footing 1 place the tunnel both sides in, make first support column 2 roughly laminate with the tunnel, then use and inject the spanner in first recess 18 on the first elasticity ring 7, rotate first elasticity ring 7 along 6 screw thread advancing directions of first threaded rod, first threaded rod 6 gos forward and can promote to rotate dog 5 of being connected along 3 walls of hydraulic pressure chamber with 6 other ends of first threaded rod, wherein the diameter of first threaded rod 6 is less than 3 inner wall diameters of hydraulic pressure chamber, dog 5 slides and can oppress hydraulic pressure 3 interior hydraulic oil of hydraulic pressure chamber, hydraulic oil can apply ascending thrust to 4 lower extremes of second support column, make second support column 4 along 3 inner walls of hydraulic pressure chamber upwards slide. The second support column 4 slides upwards to push the first support plate 8 and the second support plate 10 which are fixedly connected with the upper ends of the first support column and the second support plate 10 to move upwards, and when the first support plate 8 and the second support plate 10 are attached to the upper surface of the roadway, the first elastic ring 7 stops rotating. At the moment, the two first limiting blocks 11 and the second supporting column 4 are fixedly connected at the same horizontal height, a wrench is inserted into the second groove 19 on the second elastic ring 14, the second elastic ring 14 is rotated to drive the second threaded rod 13 fixedly connected with the second elastic ring to rotate, the left and right threads of the second threaded rod 13 are rotated in opposite directions, the first threaded cylinder 12 and the second threaded cylinder 15 connected with the two ends of the second threaded rod 13 extend outwards at the same time, the two second threaded rods 13 are adjusted according to actual conditions, the second limiting blocks 16 are attached to the first supporting plate 8, the second elastic ring 14 is continuously rotated, and the first supporting column 2 and the second supporting column 4 are attached to a roadway in a more compact manner. The utility model discloses, strut height-adjustable, it is adjustable to strut the width, and the material is recoverable to be used repeatedly.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a coal mine tunnel supporting device, includes footing (1), its characterized in that: the two symmetrical supporting legs are arranged on the bottom foot (1), a first supporting column (2) is fixedly arranged above the bottom foot (1), a hydraulic cavity (3) is arranged inside the first supporting column (2), a second supporting column (4) is arranged at the upper part of the hydraulic cavity (3), a stop block (5) is connected behind the hydraulic cavity (3) in a sliding mode, a first threaded rod (6) is arranged behind the stop block (5), and a first elastic ring (7) is fixedly connected to the other end of the first threaded rod (6); the upper end of the second supporting column (4) is fixedly connected with a first supporting plate (8), a dovetail groove (9) is arranged above the first supporting plate (8), the second supporting plate (10) is connected in the dovetail groove (9) in a sliding manner, the lower part of the right side of the second supporting plate (10) is fixedly connected with another second supporting column (4), the outer wall of the second supporting column (4) is fixedly connected with a first limiting block (11), the first limiting block (11) is hinged with a first threaded cylinder (12), the first threaded cylinder (12) is in threaded connection with a second threaded rod (13), a second elastic ring (14) is arranged in the middle of the second threaded rod (13), the other end of the second threaded rod (13) is in threaded connection with a second threaded cylinder (15), the second threaded cylinder (15) is hinged with a second limiting block (16), and the second limiting block (16) is in sliding connection with the first supporting plate (8), the right side structure of the second limiting block (16) is formed on the same left side.

2. A coal mine roadway support apparatus as claimed in claim 1, wherein: the first threaded rod (6) is rotatably connected with the stop block (5), and the outer wall of the connecting part of the threaded rod and the stop block (5) is smooth.

3. A coal mine roadway support apparatus as claimed in claim 1, wherein: the lower end of the second supporting column (4) is sealed with the connecting part of the inner wall of the hydraulic cavity (3), and the stop block (5) is sealed with the connecting part of the inner wall of the hydraulic cavity (3).

4. A coal mine roadway support apparatus as claimed in claim 1, wherein: first support column (2) rear end is equipped with internal thread hole (17), first threaded rod (6) are threaded connection with first support column (2) connected mode.

5. A coal mine roadway support apparatus as claimed in claim 1, wherein: the circumferences of the first elastic ring (7) and the second elastic ring (14) are respectively provided with a first groove (18) and a second groove (19).

6. A coal mine roadway support apparatus as claimed in claim 1, wherein: the second threaded rod (13) is limited by a second elastic ring (14), and the thread directions of the left side and the right side are opposite.

7. A coal mine roadway support apparatus as claimed in claim 1, wherein: the first limiting block (11) comprises a front limiting block (20) and a rear limiting block (21), and the front limiting block (20) is connected with the rear limiting block (21) through bolts.