CN221169623U

CN221169623U - Unit bracket with rear gangue blocking device

Info

Publication number: CN221169623U
Application number: CN202322901002.5U
Authority: CN
Inventors: 王帅杰; 牛亚杰; 王富豪; 刘培康; 陈豪凯; 王玉奇
Original assignee: Zhengzhou Coal Machinery Integrated Equipment Co ltd
Current assignee: Zhengzhou Coal Machinery Integrated Equipment Co ltd
Priority date: 2023-10-27
Filing date: 2023-10-27
Publication date: 2024-06-18
Anticipated expiration: 2033-10-27

Abstract

The utility model provides a unit bracket with a rear gangue blocking device, which comprises a first base, wherein a first upright post is arranged on the first base, a first top beam is arranged at the top of the first upright post, a rigid gangue blocking device is arranged at one side of the first base, a flexible gangue blocking device is arranged at one side of the first top beam, and the flexible gangue blocking device and the rigid gangue blocking device are arranged at the same side of the first upright post; the rigid gangue blocking device comprises a middle gangue blocking plate arranged on the side surface of the first base, two sides of the middle gangue blocking plate are respectively hinged with side gangue blocking plates, and a gangue blocking plate driving oil cylinder is connected between the side gangue blocking plates and the middle gangue blocking plate; the flexible gangue blocking device comprises a round-link chain hanging connecting plate arranged on the first top beam, and a plurality of round-link chains are hung on the round-link chain hanging connecting plate. The unit bracket with the rear gangue blocking device can provide effective protection for the partition of the goaf and the working space.

Description

Unit bracket with rear gangue blocking device

Technical Field

The utility model relates to the field of coal mine supports, in particular to a unit support with a rear gangue blocking device.

Background

The unit type advanced support is generally applied to end-to-end support of a coal mine. Although the unit type advanced support can effectively support the upper part of a pedestrian passageway, due to the limitation of the structure of the unit type advanced support, effective safety guarantee cannot be provided at the partition position of a goaf and a working space, and the phenomenon that caving gangue rolls into the working space and suddenly bursts into the working space from the upper part can occur, so that serious threat is formed to personnel and equipment safety.

In order to improve the safety of coal mine support, the invention patent with the authority of publication number CN102828762B specifically discloses a rear gangue blocking beam hanging swing beam type gangue filling hydraulic support with a side guard plate, which comprises a front top beam, a rear top beam hinged with one end of the front top beam, a front upright post, a rear upright post, an upper connecting rod, a front connecting rod, a rear connecting rod and a base. The rear end of the base is also hinged with a rear gangue blocking beam with a side guard plate, the rear gangue blocking beam with the side guard plate is hinged with a telescopic swing beam, and the telescopic swing beam is suspended and adjusted in angle through a swing beam jack. The side guard plates in the support can be opened to two sides or one side under the action of a side pushing jack or other external force, so that a closed partition plate is formed between the support and the support, and sundries such as gangue are prevented from entering the front of the support. However, the side guard plates in the bracket have limited sizes and arrangement positions, and can not provide safety protection for the partition of the goaf and the working space.

Disclosure of utility model

In order to provide effective protection for the partition of the goaf and the working space, the utility model adopts the following technical scheme: the unit bracket with the rear gangue blocking device comprises a first base, wherein a first upright post is arranged on the first base, a first top beam is arranged at the top of the first upright post, a rigid gangue blocking device is arranged on one side of the first base, a flexible gangue blocking device is arranged on one side of the first top beam, and the flexible gangue blocking device and the rigid gangue blocking device are arranged on the same side of the first upright post;

The rigid gangue blocking device comprises a middle gangue blocking plate arranged on the side surface of the first base, two sides of the middle gangue blocking plate are respectively hinged with side gangue blocking plates, and a gangue blocking plate driving oil cylinder is connected between the side gangue blocking plates and the middle gangue blocking plate;

The flexible gangue blocking device comprises a round-link chain hanging connecting plate arranged on the first top beam, and a plurality of round-link chains are hung on the round-link chain hanging connecting plate.

Based on the above, a connecting rod is further arranged between the intermediate gangue blocking plate and the first base.

Based on the above, in order to increase safety, the height of the intermediate gangue blocking plate is equal to the height of the side gangue blocking plate.

Based on the above, for increased safety, the sum of the length of the round-link chain and the height of the intermediate gangue blocking plate is greater than the height of the first upright when in extension.

Based on the above, in order to increase the width of the gangue blocking plate, the sum of the width of the pair of side gangue blocking plates and the width of the middle gangue blocking plate is greater than the width of the first top beam.

Based on the above, in order to increase the width and range of the gangue, the width of the round-link chain hanging connection plate is larger than the width of the first top beam.

Based on the above, a plurality of round-link chains are suspended on the round-link chain suspension connection plate at equal intervals.

Based on the above, the pair of side gangue blocking plates are symmetrically arranged with the center line of the middle gangue blocking plate as a symmetrical axis.

Based on the above, the rear of the first base is also provided with a second base, a connecting jack is connected between the second base and the first base, a second upright post is arranged on the second base, a second top beam is arranged at the top of the second upright post, and a middle beam is connected between the second top beam and the first top beam.

Compared with the prior art, the unit bracket with the rear gangue blocking device has substantial characteristics and progress, and particularly, the application range of the unit bracket is widened to the end head and tail support through the additional arrangement of the rear gangue blocking device, so that a goaf and a working space can be effectively blocked, and the protection effect is greatly improved compared with that of a common unit bracket. Meanwhile, the combination of the flexible gangue blocking device and the rigid gangue blocking device at the top is adopted, so that the size and the installation range of the gangue blocking device are enlarged, the phenomenon that the fallen gangue rolls into a working space is prevented, the rock suddenly bursts into the working space from the upper part is prevented, and the threat to personnel and equipment is avoided.

Further, the flexible gangue blocking device at the top can effectively buffer falling rock impact, the arrangement quantity and the tensioning degree are adjustable, the flexible gangue blocking device has the advantages of being strong in adaptability and light in self weight, and load can be transferred to the support main body. The support strength of the support frame is slightly weakened, so that the protection efficiency is high. Meanwhile, the unit bracket with the rear gangue blocking device has the advantages of small volume and remarkable blocking effect, and can be suitable for the occasions that the cross section of a plurality of roadway support areas is small and the top plate is unstable.

Drawings

FIG. 1 is a schematic view of the overall structure of a unit bracket with a rear gangue blocking device.

Fig. 2 is a schematic view of a partial structure of a unit bracket with a rear gangue blocking device.

Fig. 3 is a schematic diagram of an end structure of a unit bracket with a rear gangue blocking device.

Fig. 4 is a schematic side view of a unit bracket with a rear gangue blocking device.

Fig. 5 is a schematic diagram of the top structure of the unit bracket with the rear gangue blocking device.

In the figure: 1. a second base; 2. a second upright; 3. a second top beam; 4. a middle beam; 5. a jack connected with the frame; 6. a first top beam; 7. a first upright; 8. a round-link chain; 9. a middle gangue blocking plate; 10. a first base; 11. a connecting rod; 12. a side gangue blocking plate; 13. the gangue blocking plate drives the oil cylinder; 14. the round-link chain hangs the connecting plate.

Detailed Description

The technical scheme of the utility model is further described in detail through the following specific embodiments.

Example 1

The embodiment provides a unit bracket with a rear gangue blocking device, as shown in fig. 1, 2, 3, 4 and 5, comprising a first base 10, wherein a first upright post 7 is arranged on the first base 10, and a first top beam 6 is arranged at the top of the first upright post 7.

One side of the first base 10 is provided with a rigid gangue blocking device, and one side of the first top beam 6 is provided with a flexible gangue blocking device. The flexible gangue blocking device and the rigid gangue blocking device are arranged on the same side of the first upright post.

The rigid gangue blocking device comprises a middle gangue blocking plate 9 arranged on the side face of the first base 10. Two sides of the middle gangue blocking plate 9 are respectively hinged with side gangue blocking plates 12, and a gangue blocking plate driving oil cylinder 13 is connected between the side gangue blocking plates 12 and the middle gangue blocking plate 9.

The flexible gangue blocking device comprises a round-link chain suspension connecting plate 14 arranged on the first top beam 6. A plurality of round-link chains 8 are hung on the round-link chain hanging connecting plate 14.

Specifically, in this embodiment, a connecting rod 11 is further disposed between the intermediate gangue blocking plate 9 and the first base 10.

In order to increase the width of the waste rock, the sum of the width of the pair of side waste rock blocking plates 12 and the width of the intermediate waste rock blocking plate 9 is greater than the width of the first top beam 6. The width of the round-link chain suspension connection plate 14 is greater than the width of the first top beam 6.

As shown in fig. 1 and 5, a second base 1 is further disposed behind the first base 10. A connecting jack 5 is connected between the second base 1 and the first base 10. The second base 1 is provided with a second upright post 2. A second top beam 3 is arranged at the top of the second upright post 2, and a middle beam 4 is connected between the second top beam 3 and the first top beam 6.

Example 2

The specific structure of the unit bracket with the rear gangue blocking device according to the present embodiment is different from that of the unit bracket according to embodiment 1 in that: the round-link chains are suspended on the round-link chain suspension connecting plates at equal intervals. The pair of side gangue blocking plates are symmetrically arranged by taking the central line of the middle gangue blocking plate as a symmetrical axis.

Example 3

The specific structure of the unit bracket with the rear gangue blocking device according to the present embodiment is different from that of the unit bracket according to embodiment 1 in that: in order to increase safety, the height of the middle gangue blocking plate is equal to that of the side gangue blocking plates. The sum of the length of the round-link chain and the height of the middle gangue blocking plate is larger than the height of the first upright post when the first upright post is in extension.

Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical scheme of the present utility model and are not limiting; while the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present utility model or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the utility model, it is intended to cover the scope of the utility model as claimed.

Claims

1. The utility model provides a unit support with rear portion keeps off gangue device, includes first base, be provided with first stand on the first base, first stand top is provided with first back timber, its characterized in that: a rigid gangue blocking device is arranged on one side of the first base, a flexible gangue blocking device is arranged on one side of the first top beam, and the flexible gangue blocking device and the rigid gangue blocking device are arranged on the same side of the first upright post;

2. The unit bracket with rear gangue stop as claimed in claim 1, wherein: and a connecting rod is further arranged between the middle gangue blocking plate and the first base.

3. The unit bracket with rear gangue stop as claimed in claim 1 or 2, wherein: the height of the middle gangue blocking plate is equal to that of the side gangue blocking plate.

4. A unit bracket with rear gangue stop as claimed in claim 3 wherein: the sum of the length of the round-link chain and the height of the middle gangue blocking plate is larger than the height of the first upright post when the first upright post is in extension.

5. The unit bracket with rear gangue stop as claimed in claim 1, wherein: the sum of the width of the pair of side gangue blocking plates and the width of the middle gangue blocking plate is larger than the width of the first top beam.

6. The unit bracket with rear gangue stop as claimed in claim 5 wherein: the width of the round-link chain suspension connecting plate is larger than that of the first top beam.

7. The unit bracket with rear gangue stop as claimed in claim 6, wherein: the round-link chains are suspended on the round-link chain suspension connecting plates at equal intervals.

8. The unit bracket with rear gangue stop as claimed in claim 1 or 2 or 5 or 6 or 7, wherein: the pair of side gangue blocking plates are symmetrically arranged by taking the central line of the middle gangue blocking plate as a symmetrical axis.

9. The unit bracket with rear gangue stop as claimed in claim 8 wherein: the rear of first base still is provided with the second base, the second base with be connected with between the first base and link the frame jack, be provided with the second stand on the second base, the top of second stand is provided with the second back timber, the second back timber with be connected with the intermediate beam between the first back timber.