CN210509248U

CN210509248U - Coal mining roadway supporting device

Info

Publication number: CN210509248U
Application number: CN201920886011.2U
Authority: CN
Inventors: 韩军胜
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-13
Filing date: 2019-06-13
Publication date: 2020-05-12
Anticipated expiration: 2029-06-13

Abstract

The utility model relates to a hydraulic support technical field just discloses a coal mining tunnel supporting device, the on-line screen storage device comprises a base, one side hinge of base is connected with the connecting rod, the one end swing joint that the base was kept away from to the connecting rod has the shield roof beam, the upper portion of shield roof beam is rotated and is connected with the back timber, the side guard plate has been cup jointed in the both sides activity of back timber, the middle part of back timber is equipped with the mount, the horizontal telescopic link of both sides fixedly connected with of mount, the inner wall fixed connection of one end and the side guard plate of mount is kept away from to horizontal telescopic link, the inner wall of side guard plate is provided with the fixed hinge. This coal mining roadway support device, through the cooperation of mount and horizontal telescopic link, utilize the rotation between fixed hank frame and the cradling piece to be connected simultaneously, give the atress of the vertical direction of side guard plate through the cradling piece, reached the purpose that the side guard plate can support the tunnel top.

Description

Coal mining roadway supporting device

Technical Field

The utility model relates to a hydraulic support device technical field specifically is a coal mining tunnel supporting device.

Background

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

Only one side of a side guard plate of the traditional hydraulic support can move, and no vertical stress exists after the side guard plate is moved out, so that the top of a coal mining roadway cannot be effectively supported; at present, most of hydraulic supports are made of hard steel, and the top of each hydraulic support is in an uneven rock structure due to the fact that the roadway surface is mostly in the uneven rock structure, so that the top of each hydraulic support is not in tight contact with the roadway surface, supporting force is weakened, meanwhile, the top of each hydraulic support is damaged to different degrees by the aid of raised rocks, and the service life of each hydraulic support is shortened; when the traditional hydraulic support is used on a road surface with a large inclination, the top beam is inclined and then the contact between the top beam and the top of the roadway is affected due to the fact that the balance is not easy to adjust, and therefore the supporting effect of the top beam is weakened.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

To prior art's not enough, the utility model provides a coal mining tunnel supporting device possesses the contact and closely, easily adjusts advantages such as balanced, long service life, has solved the problem that proposes among the above background art.

(II) technical scheme

The utility model provides a following technical scheme: a coal mining roadway supporting device comprises a base, wherein a pushing connecting rod is movably sleeved at the front end of the base, a connecting rod is hinged to one side of the base, a shield beam is movably connected to one end, far away from the base, of the connecting rod, a top beam is rotatably connected to the upper portion of the shield beam, a front beam is fixedly connected to the front end of the top beam, rubber pads are arranged at the tops of the top beam and the front beam, side protection plates are movably sleeved on two sides of the top beam, a fixing frame is arranged in the middle of the top beam, transverse telescopic rods are fixedly connected to two sides of the fixing frame, one ends, far away from the fixing frame, of the transverse telescopic rods are fixedly connected with the inner walls of the side protection plates, a fixed twisting frame located below the transverse telescopic rods is arranged on the inner walls of the side protection plates, a support rod is movably, the hydraulic jack is fixedly mounted inside the base, an upright column is arranged above the base, and the top end of the upright column is fixedly connected with the top beam.

Preferably, a rubber pad is arranged above the side guard plate and fixedly connected to the top beam, the front beam and the top of the side guard plate through screws.

Preferably, the surface of the rubber pad is provided with a curved groove, and the curved groove is corrugated.

Preferably, the support rod is a hydraulic rod, and the maximum extensible value of the support rod is the same as the width value of the side guard plate.

Preferably, the cover plate above the base and positioned at the top of the hydraulic jack can be separated from the base.

(III) advantageous effects

Compared with the prior art, the utility model provides a coal mining tunnel supporting device possesses following beneficial effect:

1. this coal mining roadway support device, through the cooperation of mount and horizontal telescopic link, utilize the rotation between fixed hank frame and the cradling piece to be connected simultaneously, constitute the triangle-shaped structure with mount, horizontal telescopic link, cradling piece, has improved the stability of side guard plate to give the atress of the vertical direction of side guard plate through the cradling piece, reached the purpose that the side guard plate can support the tunnel top.

2. This coal mining roadway support device through the inside hydraulic jack that sets up of base, can adjust this support device's balance in time, has avoided because the untight problem of back timber and the contact of tunnel top that ground slope leads to, has improved the support dynamics of back timber to the tunnel top.

3. This coal mining roadway support device through the rubber pad that back timber, front-axle beam and side shield plate surface set up, has improved the compact type of this support device top with the surface contact of tunnel, guarantees that this support device has sufficient support dynamics to the tunnel, can solve the arch on tunnel surface simultaneously to the damage at this support device top, has prolonged this support device's life.

Drawings

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

fig. 2 is a side view of the top beam of the present invention;

fig. 3 is a schematic view of the surface structure of the top beam and the side guard plate of the present invention.

In the figure: 1. a base; 2. a connecting rod; 3. covering the beam; 4. a top beam; 5. a front beam; 6. a rubber pad; 7. a column; 8. a hydraulic jack; 9. a pushing connecting rod; 10. a fixed mount; 11. a transverse telescopic rod; 12. a side guard plate; 13. fixing the twisting frame; 14. a support rod; 15. a screw; 16. a curved groove.

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 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.

Referring to fig. 1-3, a coal mining roadway supporting device comprises a base 1, a push connecting rod 9 is movably sleeved at the front end of the base 1, a connecting rod 2 is hinged at one side of the base 1, a shield beam 3 is movably connected at one end of the connecting rod 2 far away from the base 1, the upper part of the shield beam 3 is rotatably connected with a top beam 4, a front beam 5 is fixedly connected at the front end of the top beam 4, rubber pads 6 are arranged at the tops of the top beam 4 and the front beam 5, side guard plates 12 are movably sleeved at two sides of the top beam 4, the side guard plates 12 can extend towards two sides and are used for eliminating an increasing and decreasing gap between the adjacent support shield beam 3 and the top beam 4 and preventing collapsed waste rocks from entering a supporting space, a fixed frame 10 is arranged at the middle part of the top beam 4, the fixed frame 10 is a hollow cylinder, a cross rod is arranged at the lower end of the fixed frame 10, transverse telescopic rods 11 are fixedly connected at two sides, the inner wall of side guard plate 12 is provided with the fixed hank frame 13 that is located horizontal telescopic link 11 below, the lower part swing joint of mount 10 has cradling piece 14, the port of cradling piece 14 is the ring structure, the ring structure cup joints on the horizontal pole of mount 10 lower extreme, so cradling piece 14 can rotate, the one end of cradling piece 14 is passed through fixed hank frame 13 and is connected with side guard plate 12 rotation, base 1's inside fixed mounting has hydraulic jack 8, hydraulic jack 8's quantity is three, base 1's both ends and middle part set up one respectively, base 1's top is provided with stand 7, stand 7's top and back timber 4 fixed connection.

Wherein, the top of side guard plate 12 is provided with rubber pad 6, and rubber pad 6 passes through the top of 15 fixed connection of screw at back timber 4, front-axle beam 5 and side guard plate 12, and the material of rubber pad 6 is rubber, has certain elasticity and plasticity, and when the arch at tunnel top contacted with rubber pad 6, can extrude rubber pad 6 and reach the effect with 6 in close contact with of rubber pad to make this supporting device give tunnel top holding power not disperse, guarantee the supporting effect to the tunnel top.

Wherein, curved groove 16 has been seted up on the surface of rubber pad 6, and curved groove 16's shape is the corrugate, and curved groove 16 can hold the arch on tunnel surface on the one hand, and on the other hand, to fixed width's rubber pad 6, curved groove 16 that the surface becomes curve shape can increase with tunnel surface contact's area, reduces the pressure that this supporting device top unit area received to protect this supporting device, prolong its life.

The support rod 14 is a hydraulic rod, and the maximum extensible value of the support rod 14 is the same as the width of the side guard plate 12, and when the side guard plate 12 extends, the support rod 14 also extends immediately, so as to achieve a state of balance with the transverse telescopic rod 11 and the fixing frame 10.

The cover plate positioned on the top of the hydraulic jack 8 above the base 1 can be separated from the base 1, and when the ground surface is inclined, the hydraulic jack 8 is adjusted to extend or contract to support the cover plate of the base 1, so that the cover plate is kept parallel to the horizontal plane.

Principle of operation

Firstly, adjusting a hydraulic jack 8 to enable a cover plate of a base 1 to be parallel to a horizontal line, enabling an upright post 7 to stretch to a top beam 4 and a front beam 5 to be in contact with the top of a coal mining roadway, enabling a connecting rod 2 to rotate and simultaneously driving a shield beam 3 to rotate, secondly, extending a transverse telescopic rod 11 to drive a side guard plate 12 to move towards two sides until the side guard plate 12 is clamped with two sides of the top beam 4, meanwhile, extending a support rod 14, enabling two ends of the support rod 14 to rotate until the support rod 14, the side guard plate 12 and a fixing frame 10 reach a stress balance state, and finally, when the device needs to be moved, moving a pushing connecting rod 9 under the pushing of a pushing hydraulic rod.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a coal mining roadway support device, includes base (1), its characterized in that: a pushing connecting rod (9) is movably sleeved at the front end of the base (1), a connecting rod (2) is hinged to one side of the base (1), a shield beam (3) is movably connected to one end, far away from the base (1), of the connecting rod (2), a top beam (4) is rotatably connected to the upper portion of the shield beam (3), a front beam (5) is fixedly connected to the front end of the top beam (4), a rubber pad (6) is arranged at the tops of the top beam (4) and the front beam (5), side protection plates (12) are movably sleeved at the two sides of the top beam (4), a fixing frame (10) is arranged in the middle of the top beam (4), transverse telescopic rods (11) are fixedly connected to the two sides of the fixing frame (10), one end, far away from the fixing frame (10), of each transverse telescopic rod (11) is fixedly connected with the inner wall of each side protection plate (12), and a fixing twisting frame (13) located below the transverse, the lower part swing joint of mount (10) has cradling piece (14), the one end of cradling piece (14) is rotated through fixed hank frame (13) and side guard plate (12) and is connected, the inside fixed mounting of base (1) has hydraulic jack (8), the top of base (1) is provided with stand (7), the top and back timber (4) fixed connection of stand (7).

2. A coal mining roadway support apparatus according to claim 1, wherein: rubber pads (6) are arranged above the side protection plates (12), and the rubber pads (6) are fixedly connected to the top beams (4), the front beams (5) and the top of the side protection plates (12) through screws (15).

3. A coal mining roadway support apparatus according to claim 1, wherein: the surface of the rubber pad (6) is provided with a curved groove (16), and the curved groove (16) is corrugated.

4. A coal mining roadway support apparatus according to claim 1, wherein: the support rod (14) is a hydraulic rod, and the maximum extensible value of the support rod (14) is the same as the width value of the side guard plate (12).

5. A coal mining roadway support apparatus according to claim 1, wherein: the cover plate positioned on the top of the hydraulic jack (8) above the base (1) can be separated from the base (1).