CN218971238U

CN218971238U - Mining hydraulic support

Info

Publication number: CN218971238U
Application number: CN202320030103.7U
Authority: CN
Inventors: 魏玉敏
Original assignee: Pingdingshan Tianhao Machinery Manufacturing Co ltd
Current assignee: Pingdingshan Tianhao Machinery Manufacturing Co ltd
Priority date: 2023-01-06
Filing date: 2023-01-06
Publication date: 2023-05-05
Anticipated expiration: 2033-01-06

Abstract

The utility model discloses a mining hydraulic support, which comprises a base, wherein a connecting seat is fixedly connected above the base, a stand column is arranged in the middle of the connecting seat, a top beam is arranged at the other end of the stand column, two first connecting rods are arranged at the other side of the connecting seat, a tail beam is arranged at the other end of the first connecting rods, one end of the tail beam is rotationally connected with the top beam, a fixing seat is fixedly connected above the top beam, a second connecting rod is arranged above the fixing seat, a top plate is fixedly connected with the other end of the second connecting rod, and the impact force born by the top of the top beam can be buffered and relieved by arranging the second connecting rod, the fixing seat, the top plate and a damping spring, so that the instantaneous impact force of an overlying strata on the top beam is reduced, the overall stress of the hydraulic support is reduced, the top beam is prevented from being damaged, and the service life of the hydraulic support is prolonged.

Description

Mining hydraulic support

Technical Field

The utility model relates to the field of hydraulic supports, in particular to a mining hydraulic support.

Background

The hydraulic support is a structure for controlling the mine pressure of the coal face. The mining face ore pressure acts on the hydraulic support in an external load mode. In a mechanical system of interaction of the hydraulic support and the mining face surrounding rock, if the resultant force of all supporting parts of the hydraulic support and the external load force 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;

when the hydraulic support is supported in the working face, the top beam contacts the overlying strata, under the actual working condition, the overlying strata can cause periodical pressure impact to the top beam, and the periodical pressure impact completes the impact in a short time, so that larger pressure is caused to the top beam under the periodical pressure impact, the strong part of the top beam is easy to deform, the whole top beam is broken, and the hydraulic support cannot play an effective supporting role.

Disclosure of Invention

The utility model aims to at least solve one of the technical problems in the prior art, provides a mining hydraulic support, and solves the problem that a top beam is stressed more and is easy to break in the use process of the existing hydraulic support.

In order to achieve the purpose, the mining hydraulic support comprises a base, wherein a connecting seat is fixedly connected above the base, a stand column is arranged in the middle of the connecting seat, a top beam is arranged at the other end of the stand column, two first connecting rods are arranged at the other side of the connecting seat, tail beams are arranged at the other ends of the first connecting rods, and one end of each tail beam is rotatably connected with the top beam;

the top of back timber fixedly connected with fixing base, the top of fixing base is provided with the second connecting rod, the other end fixedly connected with roof of second connecting rod.

As a further description of the above technical solution: the lower extreme of second connecting rod runs through the fixing base inwards and is provided with the limiting plate, the other end fixedly connected with damping spring of limiting plate, damping spring's the other end and the inboard bottom fixed connection of fixing base.

As a further description of the above technical solution: the water tank is arranged on one side above the base, and a water inlet is formed in the upper portion of the water tank in a penetrating mode.

As a further description of the above technical solution: one side of the water tank is provided with a conveying pipe in a penetrating mode, the other end of the conveying pipe is provided with a water storage cavity, a second threaded connecting piece is fixedly connected to the lower portion of the top beam, a screw is fixedly connected to the upper end of the water storage cavity, the screw is in threaded connection with the second threaded piece, and a plurality of spray heads are arranged below the water storage cavity.

As a further description of the above technical solution: the middle part of the conveying pipe is provided with a water pump.

As a further description of the above technical solution: one side of the water tank is provided with a visual window, and one side of the visual window is provided with a first threaded connecting piece.

The utility model has the following beneficial effects:

1. compared with the prior art, the mining hydraulic support has the advantages that the impact force borne by the top of the top beam can be buffered and relieved by arranging the second connecting rod, the fixing seat, the top plate and the damping spring, so that the instantaneous impact force of an overlying strata on the top beam is reduced, the integral stress of the hydraulic support is reduced, the top beam is prevented from being damaged, and the service life of the mining hydraulic support is prolonged;

2. compared with the prior art, the mining hydraulic support can be used for installing the water storage cavity and the spray head by arranging the second threaded installation piece and the screw rod, and the whole hydraulic support can be used for spraying water through the spray head to reduce dust generated at the top of a coal mine in the supporting process.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further illustrated by the following figures and examples;

FIG. 1 is a schematic diagram of the overall structure of a mining hydraulic support of the present utility model;

FIG. 2 is a schematic diagram of the internal structure of a fixing seat of the mining hydraulic support;

FIG. 3 is a schematic diagram of the structure of FIG. 1A;

fig. 4 is a schematic installation view of a second threaded connection of a mining hydraulic bracket according to the present utility model.

Legend description:

1. a top plate; 2. a fixing seat; 3. a top beam; 4. tail boom; 5. a water inlet; 6. a first threaded connection; 7. a visual window; 8. a base; 9. a water tank; 10. a water pump; 11. a first connecting rod; 12. a connecting seat; 13. a column; 14. a second connecting rod; 15. a limiting plate; 16. a damping spring; 17. a second threaded connection; 18. a screw; 19. a spray head; 20. a water storage cavity; 21. a conveying pipe.

Detailed Description

Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.

Referring to fig. 1-4, one embodiment provided by the present utility model is: the mining hydraulic support comprises a base 8, wherein a connecting seat 12 is fixedly connected above the base 8, a stand column 13 is arranged in the middle of the connecting seat 12, a top beam 3 is arranged at the other end of the stand column 13, two first connecting rods 11 are arranged at the other side of the connecting seat 12, a tail beam 4 is arranged at the other end of the first connecting rods 11, one end of the tail beam 4 is rotationally connected with the top beam 3, and the top beam 3, the connecting seat 12, the stand column 13, the first connecting rods and the tail beam 4 are all common structures in the existing hydraulic support, so that the description is not repeated;

the upper part of the top beam 3 is fixedly connected with a fixed seat 2, a second connecting rod 14 is arranged above the fixed seat 2, the other end of the second connecting rod 14 is fixedly connected with a top plate 1, the lower end of the second connecting rod 14 penetrates through the fixed seat 2 and is internally provided with a limiting plate 15, the other end of the limiting plate 15 is fixedly connected with a damping spring 16, the other end of the damping spring 16 is fixedly connected with the bottom of the inner side of the fixed seat 2, the connecting rod 14 can be limited through the limiting plate 15 in the inner part, a plurality of buffering damping structures are arranged above the top beam 3, the top plate 1 above the top beam 3 is firstly contacted with an overlying strata in the lifting process, the overlying strata can generate pressure on the top plate 1, so that the second connecting rod 14 below moves towards the inner part of the fixed seat 2, the inner damping spring 16 generates extrusion force, the impact force born by the top of the top beam 3 is buffered and relieved, the instant impact force of the overlying strata on the top beam 3 is reduced, the whole stress of the hydraulic support is reduced, and the top beam 3 is prevented from being damaged;

the water tank 9 is arranged on one side above the base 8, the water inlet 5 is arranged above the water tank 9 in a penetrating manner, water can be added into the water tank 9 through the water inlet 5, the conveying pipe 21 is arranged on one side of the water tank 9 in a penetrating manner, the water storage cavity 20 is arranged at the other end of the conveying pipe 21, the second threaded connecting piece 17 is fixedly connected to the lower part of the top beam 3, the screw 18 is fixedly connected with the screw 18 at the upper end of the water storage cavity 20, the screw 18 is in threaded connection with the second threaded connecting piece 17, a plurality of spray heads 19 are arranged below the water storage cavity 20, the water pump 10 is arranged in the middle of the conveying pipe 21, the water storage cavity 20 can be arranged below the top beam 3 through the cooperation between the screw 18 and the second threaded connecting piece 17, so that the dust settling effect is better, the water pump 10 is started, the water in the water tank 9 can be conveyed into the water storage cavity 20 through the conveying pipe 21, the dust settling effect in the peripheral working range is finally realized through the spray of the plurality of spray heads 19 below, and the practicability of the whole device is increased;

one side of water tank 9 is provided with visual window 7, and one side of visual window 7 is provided with first screwed connection spare 6, can observe the inside water yield of water tank 9 through visual window 7 to carry out timely water adding, and set up first screwed connection spare 6 also can cooperate with screw rod 18, thereby can place the water storage chamber 20 in one side of water tank 9 when not using dust fall equipment, prevent to produce the hindrance to whole hydraulic support, realize its device's convenience.

Working principle: when the device is used, firstly, the device is moved to a proper position, the upper top beam 3 can be lifted upwards by starting the upright post 13, the upper top plate 1 can be firstly contacted with an overlying strata in the lifting process of the top beam 3, the overlying strata can generate pressure on the top plate 1, so that the lower second connecting rod 14 moves towards the inside of the fixed seat 2, the internal damping spring 16 generates extrusion force, the impact force borne by the top of the top beam 3 is buffered and relieved, the instantaneous impact force of the overlying strata on the top beam 3 is reduced, the integral stress of the hydraulic support is reduced, the top beam 3 is prevented from being damaged, the service life of the hydraulic support is prolonged, and a large amount of dust is generated when the whole hydraulic support is used, at this time, the screw 18 is in threaded connection with the second threaded connection piece 17 below the top beam 3, the water pump 10 is started again, water in the water tank 9 can be conveyed into the water storage cavity 20 through the conveying pipe 21, and finally, the plurality of spray heads 19 below are sprayed out, the dust falling effect in the peripheral working range is realized, and the practicability of the whole device is increased.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims

1. Mining hydraulic support, including base (8), its characterized in that: the upper part of the base (8) is fixedly connected with a connecting seat (12), the middle part of the connecting seat (12) is provided with a stand column (13), the other end of the stand column (13) is provided with a top beam (3), the other side of the connecting seat (12) is provided with two first connecting rods (11), the other end of each first connecting rod (11) is provided with a tail beam (4), and one end of each tail beam (4) is rotationally connected with the top beam (3);

the top of back timber (3) fixedly connected with fixing base (2), the top of fixing base (2) is provided with second connecting rod (14), the other end fixedly connected with roof (1) of second connecting rod (14).

2. The mining hydraulic support according to claim 1, wherein a limiting plate (15) is inwards arranged at the lower end of the second connecting rod (14) penetrating through the fixing seat (2), a damping spring (16) is fixedly connected to the other end of the limiting plate (15), and the other end of the damping spring (16) is fixedly connected with the inner bottom of the fixing seat (2).

3. The mining hydraulic support according to claim 1, characterized in that a water tank (9) is arranged on one side above the base (8), and a water inlet (5) is arranged above the water tank (9) in a penetrating manner.

4. A mining hydraulic support according to claim 3, characterized in that one side of the water tank (9) is provided with a conveying pipe (21) in a penetrating way, the other end of the conveying pipe (21) is provided with a water storage cavity (20), a second threaded connecting piece (17) is fixedly connected to the lower part of the top beam (3), a screw (18) is fixedly connected to the upper end of the water storage cavity (20), the screw (18) is in threaded connection with the second threaded connecting piece (17), and a plurality of spray heads (19) are arranged below the water storage cavity (20).

5. A mining hydraulic support according to claim 4, characterized in that the middle part of the conveying pipe (21) is provided with a water pump (10).

6. A mining hydraulic support according to claim 3, characterized in that one side of the water tank (9) is provided with a viewing window (7), and one side of the viewing window (7) is provided with a first threaded connection (6).