CN210264771U

CN210264771U - Sleeve connecting rod type anti-impact support

Info

Publication number: CN210264771U
Application number: CN201920608074.1U
Authority: CN
Inventors: 徐兴强; 陈志才; 杨常青
Original assignee: Beijing Huachuang Kuang'an Technology Co ltd; Hebei Chengtian Hengye Coal Mine Equipment Co ltd; Beijing Chengtian Hengye Colliery Equipment Co ltd
Current assignee: Beijing Huachuang Kuang'an Technology Co ltd; Hebei Chengtian Hengye Coal Mine Equipment Co ltd; Beijing Chengtian Hengye Colliery Equipment Co ltd
Priority date: 2019-04-29
Filing date: 2019-04-29
Publication date: 2020-04-07
Anticipated expiration: 2029-04-29

Abstract

The utility model discloses a telescopic link formula scour protection support, including back timber, support column and floorbar, the both ends of support column respectively with back timber and floorbar articulated, the back timber is circular-arcly, follows be equipped with a plurality ofly on the length direction of back timber rather than lower looks articulated the support column, the support column is extending structure, the back timber passes through the support column drive makes it be in the flexible direction upward movement that the support column was injectd. The utility model discloses set up the back timber into arc structure, can adapt to the section shape in arch tunnel better, rely on a plurality of support columns that have extending structure of its below to realize the support to the back timber, make the holding power of support more even. Meanwhile, the top beam of the arc-shaped structure also has good structural strength, thereby facilitating the structural optimization design of the beam body and improving the material utilization rate.

Description

Sleeve connecting rod type anti-impact support

Technical Field

The utility model relates to a coal mining technical field, concretely relates to telescopic connecting rod formula scour protection support.

Background

The rock burst is one of the most serious dynamic disasters in coal mine production, the mine with the rock burst in China has more and more starts, the damage degree of the rock burst is more and more prominent along with the increase of the mining depth and the continuous expansion of the mining intensity, and the rock burst is characterized by sudden, sharp and violent damage in a coal rock body of a roadway or a working face, and along with the sudden release of strain energy in the coal rock body, the excavation progress is influenced, and the safety of excavating personnel and machines is often threatened.

At present, a 'strong pressure relief and strong support' prevention technology is mainly adopted for a rock burst roadway, so that long-term support of an inner roof of a coal mine roadway cannot be really realized, and disaster loss generated when rock burst occurs is reduced or solved.

SUMMERY OF THE UTILITY MODEL

To the prevention technique that prior art adopted when taking place the rock burst, can't realize effectively strutting the tunnel roof, cause the threat for digger and machines, the utility model provides a telescopic connecting rod formula scour protection support.

The adopted technical scheme is as follows:

the utility model provides a sleeve connecting rod formula scour protection support, includes back timber, support column and floorbar, the both ends of support column respectively with back timber and floorbar articulated, the back timber is circular-arcly, follows be equipped with a plurality ofly on the length direction of back timber rather than lower articulated the support column, the support column is extending structure, the back timber passes through the support column drive makes it move on the flexible direction that the support column is injectd.

Further, the top beam comprises a first top beam and a second top beam which are arc-shaped, the support columns comprise a first support column, a second support column and a third support column, one end of the first top beam is hinged with one end of the second top beam through a rotating shaft, two ends of the first support column are respectively hinged with the other end of the first top beam and one end of the bottom beam, and two ends of the third support column are respectively hinged with the other end of the second top beam and the other end of the bottom beam; the second support column is arranged between the first support column and the third support column, and two ends of the second support column are respectively hinged with the first top beam and the bottom beam.

The bottom beam comprises a first bottom beam, a second bottom beam and a third bottom beam, and two ends of the second bottom beam are respectively hinged with one end of the first bottom beam and one end of the third bottom beam through a rotating shaft; the lower ends of the first supporting column, the second supporting column and the third supporting column are hinged with the corresponding first bottom beam, the second bottom beam and the third bottom beam in a one-to-one correspondence mode.

First support column, second support column and third support column include sleeve, hydraulic column and anti-shock mounting respectively, anti-shock mounting set up in the sleeve, the lower part of hydraulic column set up in the sleeve, its lower extreme with the anti-shock mounting contact, the upper end of hydraulic column with first back timber or second back timber articulated, telescopic lower extreme with the floorbar is connected.

The anti-impact device is a deformable energy-absorbing anti-impact piece arranged in the sleeve.

The first supporting column and the third supporting column further comprise telescopic sheath structures, and the hydraulic upright columns are arranged in the sheath structures.

The sheath structure comprises a first connecting rod sleeve and a second connecting rod sleeve, one end of the first connecting rod sleeve and one end of the second connecting rod sleeve form a slidable splicing matching structure, the upper end of the first connecting rod sleeve is hinged to the top beam, and the lower end of the second connecting rod sleeve is hinged to the bottom beam.

The first bottom beam, the second bottom beam and the third bottom beam are of box-type structures with rectangular sections, and the first bottom beam and the third bottom beam can rotate around rotating shafts at two ends of the second bottom beam.

The utility model discloses technical scheme has following advantage:

A. the utility model discloses set up the back timber into arc structure, can adapt to the section shape in arch tunnel better, rely on a plurality of support columns that have extending structure of its below to realize the support to the back timber, make the holding power of support more even. Meanwhile, the top beam of the arc-shaped structure also has good structural strength, thereby facilitating the structural optimization design of the beam body and improving the material utilization rate.

B. The utility model discloses divide into first back timber of articulated and second back timber with the back timber, first back timber and second back timber can revolute the axle and form swivelling joint, two sections convex first back timber and second back timber can be well with circular-arc tunnel roof contact, through adjusting first support column, second support column and third support column adjust the back timber radian size that first back timber and second back timber formed, make its adaptability of supporting the roof more powerful, in addition, the utility model discloses a support the back timber through three support column, the steadiness is better, has improved the support intensity to the back timber greatly, produced calamity loss when further reducing the rock burst and taking place.

C. The utility model discloses be equipped with anti-shock mounting respectively in the sleeve of first support column, second support column and third support column, anti-shock mounting's setting can further cushion the strong impact that rock burst brought, is favorable to making the scour protection to support and tunnel.

D. The first support column and the third support column in the utility model are of telescopic sheath structures, which can effectively protect the internal hydraulic upright column and prevent the two sides of the tunnel from shrinking inwards and extruding to directly damage the hydraulic upright column; meanwhile, the sheath structure is in non-planar contact with the two sides of the roadway, so that extrusion force of the roadway sides can be guided to the two sides of the sheath, and the capability of the support for resisting extrusion of the side walls is further improved.

Drawings

In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic view of a three-dimensional structure of an anti-impact bracket provided by the present invention;

FIG. 2 is a front view of the structure shown in FIG. 1;

fig. 3 is a schematic view of the working state of the impact-proof support in the roadway.

Description of reference numerals:

1-top beam

11-first top beam, 12-second top beam

2-support column

21-first support column

22-second support column

a-sleeve, b-hydraulic column

c-sheath construction, c 1-first link sleeve, c 2-second link sleeve

23-third support column

3-bottom beam

31-first bottom beam, 32-second bottom beam, 33-third bottom beam

4-a rotating shaft; 5-coal mine; 6-roadway.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 and 2, the utility model provides a telescopic link formula scour protection support, including back timber 1, support column 2 and floorbar 3, the both ends of support column 2 are articulated with back timber 1 and floorbar 3 respectively, and back timber 1 is circular-arcly, is equipped with a plurality ofly on the length direction of back timber 1 rather than lower part looks articulated support column 2, and support column 2 here is extending structure, and back timber 1 passes through the drive of support column 2, makes it remove in the flexible direction that support column 2 injectd. When the supporting device is used, the supporting angle of the arc top beam is adjusted by driving the supporting columns 2 fixed on the bottom beam 3, wherein the self arc angle of the arc top beam is matched with the shape of a roadway top plate, as shown in fig. 3. The utility model discloses set up the back timber into arc structure, can adapt to the section shape in arch tunnel better, rely on a plurality of support columns that have extending structure of its below to realize the support to the back timber, make the holding power of support more even. Meanwhile, the top beam of the arc-shaped structure also has good structural strength, thereby facilitating the structural optimization design of the beam body and improving the material utilization rate.

The utility model discloses in used back timber 1 preferred divide into two sections, conveniently control the support angle of whole back timber, specifically include convex first back timber 11 and second back timber 12, support column 2 includes first support column 21, second support column 22 and third support column 23, the one end of first back timber 11 forms through the pivot with the one end of second back timber 12 and articulates, the both ends of first support column 21 form through pivot 4 with the other end of first back timber 11 and the one end of floorbar 3 respectively and articulate, the both ends of third support column 23 forms through pivot 4 with the other end of second back timber 12 and the other end of floorbar 3 respectively and articulates; the second supporting column 22 is disposed between the first supporting column 21 and the third supporting column 23, and two ends of the second supporting column are hinged to the first top beam 11 and the bottom beam 3 respectively. The first top beam 11 can rotate along the rotating shaft 4 under the driving action of the first supporting column 21 and the second supporting column 22, and the supporting angle of the first top beam can be independently adjusted; and the supporting angle of the second top beam 12 can be adjusted rapidly by independently adjusting the third supporting column 23, so that the supporting surface of the whole top beam is attached to the top plate of the roadway.

In addition, the utility model also divides the bottom beam 3 into a plurality of movably connected first bottom beams 31, second bottom beams 32 and third bottom beams 33, and the two ends of the second bottom beams 32 are respectively hinged with one end of the first bottom beams 31 and one end of the third bottom beams 33 through the rotating shaft 4; the lower ends of the first support column 21, the second support column 22 and the third support column 23 are respectively hinged with the corresponding first bottom beam 31, the second bottom beam 32 and the third bottom beam 33 in a one-to-one correspondence manner. The bottom beam adopts a segmented combined structure, is convenient for production, processing and underground installation and disassembly, and can be better attached to a roadway bottom plate, so that the roadway can be more effectively supported.

By adopting the first top beam 11 and the second top beam 12 in two arc shapes and adjusting the whole radian of the top beam 1 formed by the first top beam 11 and the second top beam 12 by adjusting the first support column 21, the second support column 22 and the third support column 23, the adaptability of the top plate supporting device is stronger. Additionally, the utility model discloses a support the roof beam through three support column, the steadiness is better, has improved the support intensity to the roof plate greatly, produced calamity loss when further reducing rock burst takes place.

The first support column 21, the second support column 22 and the third support column 23 in the utility model respectively comprise a sleeve a, a hydraulic upright column b and a shock-proof device (not shown in the figure), the shock-proof device is arranged in the sleeve a, and a deformable energy-absorbing shock-proof piece, such as a rubber shock-proof piece or an elastic metal shock-proof piece, which is contacted with the inner side surface of the sleeve a is adopted; the lower part of the hydraulic upright post b is arranged in the sleeve a, the lower end of the hydraulic upright post b is contacted with the anti-impact device, the upper end of the hydraulic upright post b is hinged with the first top beam 11 or the second top beam 12, and the lower end of the sleeve a is vertically connected with the bottom beam 3. The anti-impact device can further buffer the strong impact caused by rock burst, and is favorable for performing anti-impact protection on the roadway.

In order to more effectively protect first support column 21 and third support column 23 at floorbar both ends, the utility model discloses still include telescopic sheath structure c in first support column 21 and third support column 23, hydraulic column b sets up in sheath structure c. As shown in fig. 2, a specific sheath structure c may adopt a structure including a first link sleeve c1 and a second link sleeve c2, one end of the first link sleeve c1 and one end of the second link sleeve c2 form a slidable insertion fit structure, an upper end of the first link sleeve c1 is hinged to the top beam 1, and a lower end of the second link sleeve c2 is hinged to the bottom beam 3. When the hydraulic upright b extends, the first connecting rod cylinder c1 and the second connecting rod sleeve c2 can slide relatively, so that the height of the top beam is changed, wherein the middle second supporting column 22 is used as a main support and can be protected by the first supporting column 21 and the third supporting column 23 on two sides. The first support column 21 and the third support column 23 are of telescopic sheath structures, so that the internal hydraulic upright column b can be effectively protected, and the hydraulic upright column b is prevented from being directly damaged by inward contraction and extrusion of two sides of a roadway; meanwhile, the sheath structure is in non-planar contact with the two sides of the roadway, so that extrusion force of the roadway sides can be guided to the two sides of the sheath, and the capability of the support for resisting extrusion of the side walls is further improved.

The utility model provides a first floorbar 31, second floorbar 32 and third floorbar 33 all are preferably rectangular cross-section's boxed structure, and first floorbar 31 and third floorbar 33 can be rotatory around pivot 4 at second floorbar 32 both ends.

As shown in fig. 3, when will the utility model discloses when the scour protection support of shown structure is arranged in tunnel 6 of colliery 5, only need start three support column simultaneously, make two curved first back timber 11 and second back timber 12 rise to tunnel roof department and can realize accomplishing the support to the tunnel.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. The utility model provides a sleeve connecting rod formula scour protection support, a serial communication port, including back timber (1), support column (2) and floorbar (3), the both ends of support column (2) respectively with back timber (1) and floorbar (3) articulated, back timber (1) is circular-arcly, follows be equipped with on the length direction of back timber (1) a plurality ofly rather than the lower part articulated mutually support column (2), support column (2) are extending structure, back timber (1) passes through support column (2) drive makes it remove in the flexible direction that support column (2) are injectd.

2. The telescopic link type impact-proof support frame as claimed in claim 1, wherein the top beams comprise a first top beam (11) and a second top beam (12) which are circular arc-shaped, the support column (2) comprises a first support column (21), a second support column (22) and a third support column (23), one end of the first top beam (11) is hinged with one end of the second top beam (12) through a rotating shaft (4), two ends of the first support column (21) are respectively hinged with the other end of the first top beam (11) and one end of the bottom beam (3), and two ends of the third support column (23) are respectively hinged with the other end of the second top beam (12) and the other end of the bottom beam (3); the second supporting column (22) is arranged between the first supporting column (21) and the third supporting column (23), and two ends of the second supporting column are respectively hinged with the first top beam (11) and the bottom beam (3).

3. The telescopic link type shock-proof support frame according to claim 2, characterized in that the bottom beam (3) comprises a first bottom beam (31), a second bottom beam (32) and a third bottom beam (33), and two ends of the second bottom beam (32) are respectively hinged with one end of the first bottom beam (31) and one end of the third bottom beam (33) through a rotating shaft (4); the lower ends of the first supporting column (21), the second supporting column (22) and the third supporting column (23) are respectively hinged with the corresponding first bottom beam (31), the second bottom beam (32) and the third bottom beam (33) in a one-to-one correspondence mode.

4. The telescopic link type anti-impact support according to claim 2 or 3, wherein the first support column (21), the second support column (22) and the third support column (23) respectively comprise a sleeve (a), a hydraulic column (b) and an anti-impact device, the anti-impact device is arranged in the sleeve (a), the lower part of the hydraulic column (b) is arranged in the sleeve (a), the lower end of the hydraulic column (b) is contacted with the anti-impact device, the upper end of the hydraulic column (b) is hinged to the first top beam (11) or the second top beam (12), and the lower end of the sleeve (a) is connected to the bottom beam (3).

5. A telescopic link impact-protection bracket according to claim 4, characterised in that said impact-protection means are deformable energy-absorbing impact-protection members mounted inside said sleeve (a).

6. A telescopic impact-protection bracket according to claim 4, characterised in that said first (21) and third (23) support columns further comprise a telescopic jacket structure (c) in which said hydraulic uprights (b) are arranged.

7. The telescopic link impact bracket of claim 6, wherein the sheath structure (c) comprises a first link sleeve (c1) and a second link sleeve (c2), one end of the first link sleeve (c1) and one end of the second link sleeve (c2) form a slidable insertion fit structure, the upper end of the first link sleeve (c1) is hinged with the top beam (1), and the lower end of the second link sleeve (c2) is hinged with the bottom beam (3).

8. The telescopic link type shock-proof support frame as claimed in claim 7, wherein the first bottom beam (31), the second bottom beam (32) and the third bottom beam (33) are box-shaped structures with rectangular cross sections, and the first bottom beam (31) and the third bottom beam (33) can rotate around the rotating shafts (4) at two ends of the second bottom beam (32).