CN213510683U

CN213510683U - End bracket

Info

Publication number: CN213510683U
Application number: CN202022585701.XU
Authority: CN
Inventors: 赵茂森; 林勇; 赵忠军; 黎亮; 何祝友; 杨海宾; 王俭; 罗恒; 董超; 李刚
Original assignee: Sichuan Chuanmei Huarong Energy Co ltd
Current assignee: Sichuan Chuanmei Huarong Energy Co ltd
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-06-22
Anticipated expiration: 2030-11-10

Abstract

The utility model discloses end support belongs to the coal mining field, and the purpose is solved end support and is moved the inconvenient problem of frame. Comprises three bracket units arranged side by side; the front end of each support unit is provided with a bottom lifting jack, the bottom end of each bottom lifting jack is detachably connected to the base of the corresponding support unit, and the top end of each bottom lifting jack is a drawing end; the top ends of the bottom lifting jacks on the bracket units positioned on the rear side between two adjacent bracket units are hinged with the top beam of the bracket unit on the front side. The utility model discloses an end support lifts the jack at the bottom through setting up, lifts up the front end of this support unit, reduces the resistance to the support unit when moving the frame to because the support unit that is lifted off hangs in other support units through lifting the jack at the bottom, and other support units are whole to be supported in tunnel bottom plate, have avoided traditional lifting jack direct action in tunnel bottom plate, do benefit to each support unit and meet water or remove smoothly under the softer environment at the bottom plate smoothly.

Description

End bracket

Technical Field

The utility model belongs to the coal mining field, it is specific end support.

Background

In the modernized mining process of the coal mine, the end bracket is widely applied to the intersection of a roadway and a stoping working face, is used for maintaining a top plate of the roadway at the end of the coal mining working face and is usually abutted against the head-arranging bracket, so that the end of the working face has enough space without a stand column for pushing a reversed loader tail and a conveyor head, and the working face bracket can be prevented from being inclined.

If the patent application with application number CN200910065124.7 discloses a big inclination end hydraulic support, it sets up respectively in the front and back both sides of the base of end front stall and end after-poppet transfers the end jack and lifts the end jack, transfer the end jack and lift end jack bottom and support in the bottom plate, through transferring end jack and lifting flexible the realizing lifting up and putting down of end front stall and end after-poppet of end jack, it is higher to the intensity requirement of bottom plate at the in-process of moving the frame, be mostly the muddy siltstone that intensity is low at the bottom of the directness, the softer colliery of local bottom plate, end support base front end sinks easily under the bottom plate, make and move the frame difficulty.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the existing end bracket moves inconveniently under the condition that the bottom plate meets water or is softer, providing an end bracket which can well adapt to the bottom plate and meet water or a softer environment.

The utility model adopts the technical proposal that: the end bracket comprises three bracket units arranged side by side, and each bracket unit comprises a base, a top beam and an upright post assembly; the upright post assembly is arranged between the base and the top beam and supports the top beam on the base; the front end of each support unit is provided with a bottom lifting jack, the bottom end of each bottom lifting jack is detachably connected to the base of the corresponding support unit, and the top end of each bottom lifting jack is a drawing end; the top ends of the bottom lifting jacks on the bracket units positioned on the rear side between two adjacent bracket units are hinged with the top beam of the bracket unit on the front side.

Furthermore, the bottom lifting jack on each support unit is positioned at the front side of the upright post component of the corresponding support unit.

Further, along the transverse direction of the support unit, the bottom lifting jack comprises a left bottom lifting jack and a right bottom lifting jack; the bottom end of the right bottom lifting jack is connected with the right side of the base, and the top end of the right bottom lifting jack is connected with the right side of the top beam; the bottom end of the left bottom lifting jack is connected with the left end of the base, and the top end of the left bottom lifting jack is connected with the left end of the top beam.

Furthermore, along the pushing direction of the working surface, the three support units are respectively a front support unit, a middle support unit and a rear support unit;

the left ends of the top beams of the front frame unit, the middle frame unit and the rear frame unit are all provided with telescopic beams, and the stroke of the telescopic beams of the front frame unit is smaller than that of the telescopic beams of the middle frame unit and the rear frame unit.

Furthermore, a lower waste rock blocking plate is arranged on the other side, adjacent to the middle frame unit, of the rear frame unit, and the lower waste rock blocking plate is transverse to the support unit and comprises a connecting section connected with the base of the rear frame unit and a waste rock blocking section extending to the front of the base.

Furthermore, a pushing jack is arranged between the front frame unit and the middle frame unit, one end of the pushing jack is hinged with the base of the front frame unit, and the other end of the pushing jack is hinged with the base of the middle frame unit;

a pushing jack is arranged between the middle frame unit and the rear frame unit, and one end of the pushing jack is hinged with the base of the middle frame unit; the other end is hinged with the base of the rear frame unit.

Furthermore, along the working face advancing direction, the bottom plates of the bases of the front frame unit, the middle frame unit and the rear frame unit are all ship-shaped structures.

The utility model has the advantages that: the utility model discloses an end support, owing to set up between two adjacent support units and lift end jack, and lift end jack bottom and be connected with the base of one of them support unit. When one support unit needs to be moved, the bottom lifting jack connected with the support unit base retracts, and the rest bottom lifting jacks maintain the original state, so that the front end of the support unit can be lifted, and the support moving is completed under the action of the support moving mechanism. Because the lifted support unit is hung on other support units through the bottom lifting jack, and other support units are integrally supported on the roadway bottom plate, the traditional bottom lifting jack is prevented from directly acting on the roadway bottom plate, and the support units can smoothly move under the condition that the bottom plate meets water or is in a softer environment.

Drawings

FIG. 1 is a front view of the present invention;

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

fig. 3 is a left side view of the present invention.

In the figure, a front frame unit 1A, a middle frame unit 1B, a rear frame unit 1C, a base 1, a top beam 2, a column assembly 3, a bottom lifting jack 4, a left bottom lifting jack 41, a right bottom lifting jack 42, a lower waste rock blocking plate 5, a connecting section 51, a waste rock blocking section 52, a pushing jack 6 and a telescopic beam 7.

Detailed Description

The invention is further described below with reference to the following figures and examples:

the end bracket, as shown in fig. 1, 2 and 3, comprises three bracket units arranged side by side, wherein each bracket unit comprises a base 1, a top beam 2 and a column assembly 3; the upright post assembly 3 is arranged between the base 1 and the top beam 2, and supports the top beam 2 on the base 1; the front end of each support unit is provided with a bottom lifting jack 4, the bottom end of each bottom lifting jack 4 is detachably connected to the base 1 of the corresponding support unit, and the top end of each bottom lifting jack 4 is a drawing end; between two adjacent bracket units, the top end of a bottom lifting jack 4 on the bracket unit at the rear side is hinged with the top beam 2 of the bracket unit at the front side.

The utility model discloses an end support, owing to set up between two adjacent support units and lift end jack 4, and lift end jack 4 bottom and be connected with the base 1 of one of them support unit, the top is connected with the back timber 2 of another support unit. When one of the support units needs to be moved, the bottom lifting jack 4 connected with the support unit base 1 retracts, and the rest bottom lifting jacks 4 maintain the original state, so that the front end of the support unit can be lifted, and the support moving is completed under the action of the support moving mechanism. Because the lifted bracket unit is hung on other bracket units through the bottom lifting jack 4, and other bracket units are integrally supported on the roadway bottom plate, the traditional bottom lifting jack 4 is prevented from directly acting on the roadway bottom plate, and the bracket units can smoothly move under the condition that the bottom plate meets water or is in a softer environment.

And the bottom lifting jack 4 is arranged at the front end of the support unit along the longitudinal direction of the support unit, and the bottom lifting jack 4 is positioned at the front side of the upright post component 3.

The working face pushing direction in the present specification, that is, the longitudinal direction of the rack unit, refers to the left-right direction of fig. 1 or fig. 2; the transverse direction of the bracket unit refers to the left-right direction of the attached figure 3; "front" indicating orientation, such as "front end" and "front side" etc., refers to the left side of FIG. 1, and "rear" indicating orientation, such as "rear end" and "rear side" etc., refers to the right side of FIG. 1; "left" indicating orientation, e.g., "left end" and "left side" are to the right in FIG. 3; "Right" indicating orientation, e.g., "Right" and "Right" are to the left of FIG. 3.

The bottom lifting jack 4 is positioned at the front side of the upright post component 3, so that the space is reasonably utilized, and the shortening of the stroke of the bottom lifting jack 4 is facilitated.

Only one bottom lifting jack 4 can be arranged between two adjacent support units, and the bottom lifting jack 4 is longitudinally arranged in the middle of the base 1 of one support unit and in the middle of the top beam 2 of the other support unit along the support units. However, in order to improve the lifting stability of the support unit and avoid the support unit from deflecting, it is preferable that the bottom lifting jack 4 comprises a left bottom lifting jack 41 and a right bottom lifting jack 42; the bottom end of the right bottom lifting jack 42 is connected with the right side of the base 1, and the top end of the right bottom lifting jack is connected with the right side of the top beam 2; the bottom end of the left bottom lifting jack 41 is connected with the left end of the base 1, and the top end of the left bottom lifting jack is connected with the left end of the top beam 2.

In order to avoid cutting the top beam 2 of the support unit when cutting coal along the working face, preferably, the three support units are a front support unit 1A, a middle support unit 1B and a rear support unit 1C respectively along the moving direction of the working face;

the left ends of the top beams 2 of the front frame unit 1A, the middle frame unit 1B and the rear frame unit 1C are respectively provided with a telescopic beam 7, and the stroke of the telescopic beam 7 of the front frame unit 1A is smaller than that of the telescopic beams 7 of the middle frame unit 1B and the rear frame unit 1C.

During operation, the front frame unit 1A is just opposite to the coal cutting surface, and the stroke of the telescopic beam 7 is smaller than that of the other two telescopic beams 7, so that the telescopic beam 7 of the front frame unit 1A provides space for the coal cutting surface equipment and avoids interference under the condition of meeting the supporting requirement.

Because the working face has an inclination angle, when the working face mines coal, gangue or coal blocks can be discharged downwards from the roller, and the mined old pond can also contain flying stones or coal blocks, the flying stones or coal blocks roll down under the acceleration of gravity to easily cause the injury of persons and equipment at the discharge outlet, in order to avoid the problem, pedestrian passages and coal falling spaces are isolated, preferably, a lower gangue blocking plate 5 is arranged on the other side of the rear frame unit 1C adjacent to the middle frame unit 1B, and the lower gangue blocking plate 5 comprises a connecting section 51 connected with the base 1 of the rear frame unit 1C and a gangue blocking section 52 extending to the front of the base 1 along the transverse direction of the support unit.

After one coal mining cycle is finished, the frame needs to be moved, in order to realize pushing frame moving, a pushing jack 6 is arranged between the front frame unit 1A and the middle frame unit 1B, one end of the pushing jack 6 is hinged with the base 1 of the front frame unit 1A, and the other end of the pushing jack is hinged with the base 1 of the middle frame unit 1B; a pushing jack 6 is arranged between the middle frame unit 1B and the rear frame unit 1C, and one end of the pushing jack 6 is hinged with the base 1 of the middle frame unit 1B; the other end is hinged with the base 1 of the rear frame unit 1C.

For the convenience of moving, preferably, the bottom plates of the bases 1 of the front frame unit 1A, the middle frame unit 1B and the rear frame unit 1C are all ship-shaped along the moving direction of the working face.

Claims

1. The end support comprises three support units arranged side by side, and each support unit comprises a base (1), a top beam (2) and an upright post assembly (3); the upright post assembly (3) is arranged between the base (1) and the top beam (2) and supports the top beam (2) on the base (1); the method is characterized in that: the front end of each support unit is provided with a bottom lifting jack (4), the bottom end of each bottom lifting jack (4) is detachably connected to the base (1) of the corresponding support unit, and the top end of each bottom lifting jack (4) is a traction end; between two adjacent support units, the top end of a bottom lifting jack (4) on the support unit at the rear side is hinged with the top beam (2) of the support unit at the front side.

2. The tip cradle according to claim 1, wherein: the bottom lifting jack (4) on each support unit is positioned at the front side of the upright post component (3) of the corresponding support unit.

3. The tip cradle according to claim 1, wherein: the bottom lifting jack (4) comprises a left bottom lifting jack (41) and a right bottom lifting jack (42) along the transverse direction of the support unit; the bottom end of the right bottom lifting jack (42) is connected with the right side of the base (1), and the top end of the right bottom lifting jack is connected with the right side of the top beam (2); the bottom end of the left bottom lifting jack (41) is connected with the left end of the base (1), and the top end of the left bottom lifting jack is connected with the left end of the top beam (2).

4. An end bracket according to any of claims 1-3, wherein: along the moving direction of the working face, the three support units are respectively a front support unit (1A), a middle support unit (1B) and a rear support unit (1C);

the left ends of the top beams (2) of the front frame unit (1A), the middle frame unit (1B) and the rear frame unit (1C) are provided with telescopic beams (7), and the stroke of the telescopic beams (7) of the front frame unit (1A) is smaller than that of the telescopic beams (7) of the middle frame unit (1B) and the rear frame unit (1C).

5. The tip cradle according to claim 4, wherein: be provided with down fender waste rock board (5) in the opposite side that after-frame unit (1C) is adjacent with well frame unit (1B), it is horizontal along the support unit, keep off waste rock board (5) down include with the linkage segment (51) that base (1) of after-frame unit (1C) is connected with extend to the fender waste rock section (52) in base (1) the place ahead.

6. The tip cradle according to claim 4, wherein: a pushing jack (6) is arranged between the front frame unit (1A) and the middle frame unit (1B), one end of the pushing jack (6) is hinged with the base (1) of the front frame unit (1A), and the other end of the pushing jack is hinged with the base (1) of the middle frame unit (1B);

a pushing jack (6) is arranged between the middle frame unit (1B) and the rear frame unit (1C), and one end of the pushing jack (6) is hinged with the base (1) of the middle frame unit (1B); the other end is hinged with the base (1) of the rear frame unit (1C).

7. The tip cradle according to claim 4, wherein: along the working face advancing direction, the bottom plates of the bases (1) of the front frame unit (1A), the middle frame unit (1B) and the rear frame unit (1C) are all ship-shaped structures.