CN114856670A

CN114856670A - End support side protection mechanism and end support

Info

Publication number: CN114856670A
Application number: CN202210499936.8A
Authority: CN
Inventors: 贾一; 于永胜; 王帅; 唐家鑫; 李�杰; 刘子华; 刘娜; 李晓倩; 王天华
Original assignee: Chinacoal Beijing Coal Mining Machinery Co Ltd
Current assignee: Chinacoal Beijing Coal Mining Machinery Co Ltd
Priority date: 2022-05-09
Filing date: 2022-05-09
Publication date: 2022-08-05

Abstract

The invention discloses an end bracket side guard mechanism and an end bracket, which comprise a front hanging plate, a rear hanging plate, a telescopic guard plate and a large side plate; the front hanging plate is hinged with the front part of the top beam of the end bracket and is hinged with one end of each of two side protection jacks, and the other end of each of the two side protection jacks is hinged with the top beam; the rear hanging plate is hinged with the rear part of the top beam of the end bracket and is connected with the top beam through two first connecting rods, the rear hanging plate is of a box-shaped structure, the interior of the rear hanging plate is connected with the cylinder bottom ends of two telescopic jacks, and the piston rod ends at the other ends of the two telescopic jacks are connected with two groups of lug plates of the telescopic guard plate; the telescopic guard plate is arranged in the rear hanging plate in a sliding manner; the big side plate is connected with the base. The end bracket side protection mechanism and the auxiliary mechanism are both arranged on one side close to the coal side. When the top beam of the end bracket is lifted, the telescopic guard plate extends out and has the weight of the large side plate, so that the outer side of the end bracket is completely sealed. The protection height is high, the protection height is not limited by the distance between the end head frame and the coal side, the protection height and the large side plate of the base act together, and the sealing effect is good; the telescopic guard plate can extend and retract along with the height change of the support, so that the sealing range is further enlarged.

Description

End support side protection mechanism and end support

Technical Field

The invention relates to an end support of a fully mechanized mining face in a coal mine, in particular to an end support side protection mechanism and an end support.

Background

The end supports of the fully mechanized mining face under the coal mine are positioned at two ends of the working face, wherein the first or last end support is close to the coal side of the roadway, the top plate of the roadway or when the coal side is broken, coal is easy to fall into the supports. Therefore, a side protection mechanism needs to be additionally arranged on the outer side (the side close to the coal side) of the end bracket to prevent coal from falling.

As shown in fig. 1, in the prior art, the side guard mechanism of the end bracket mostly adopts a "wing spreading" type, that is, a detachable side plate is installed on the outer side of the top beam of the bracket, and the side plate is lifted or retracted under the action of a jack. When the side plates are lifted up, the top plate of the roadway is supported, coal falling is avoided, and when the side plates are retracted, the side plates are kept away from the coal side, so that the support is guaranteed to be smoothly pulled.

The structure is protected by a side plate supporting top, the defect of small protection area exists, coal falling from a roadway top plate or a coal side into the support cannot be effectively prevented, and the defect is particularly obvious when the end support is close to the coal side to cause the left width and the right width of the side plate to be narrow.

In view of the above, the present invention is particularly proposed.

Disclosure of Invention

The invention aims to provide an end socket support side protection mechanism and an end socket support, and aims to solve the technical problems in the prior art.

The purpose of the invention is realized by the following technical scheme:

the end bracket side protection mechanism comprises a front hanging plate 13, a rear hanging plate 15, a telescopic protection plate 5 and a large side plate 8;

the front hanging plate 13 is hinged with an outer side ear plate at the front part of the top beam 14 of the end bracket through three hinge lugs and is hinged with one end of each of the two side protection jacks 6 through two groups of ear plates, and the other end of each of the two side protection jacks 6 is hinged with the top beam 14;

the rear hanging plate 15 is hinged with an outer side ear plate at the rear part of the top beam 14 of the end bracket through three hinge lugs and is connected with one ends of two connecting rods I7 through two groups of ear plates, the other ends of the two connecting rods I7 are respectively connected with the top beam 14, the rear hanging plate 15 is of a box-shaped structure, the interior of the rear hanging plate is connected with the cylinder bottom ends of two telescopic jacks 16 through two groups of ear plates, and piston rod ends at the other ends of the two telescopic jacks 16 are connected with two groups of ear plates of the telescopic guard plate 5;

the telescopic guard plate 5 is arranged in the rear hanging plate 15 in a sliding manner;

the big lateral plate 8 is connected with two single ear plates of the base 12 through two single ear plates through four connecting rods two 9, four fixing holes 4 of the big lateral plate 8 are connected with the base 12 through bolts 10, and four fixing shafts 3 of the big lateral plate 8 are connected with the base 12 in a door hinge mode.

The end bracket comprises the end bracket side protection mechanism, and a front hanging plate 13, a rear hanging plate 15, a telescopic guard plate 5, a large side plate 8 and an attachment mechanism of the end bracket side protection mechanism are all arranged on one side close to a coal side.

Compared with the prior art, the end support side protection mechanism and the end support provided by the invention have the advantages that the protection height is high, the limitation of the distance between the end head frame and the coal side is avoided, the end support side protection mechanism and the end support act together with the large side plate of the base, and the sealing effect is good; the telescopic guard plate can extend and retract along with the height change of the support, so that the sealing range is further enlarged, and the outer side of the end support is completely closed.

Drawings

FIG. 1 is a schematic view of a "winged" side guard structure of a tip holder in the prior art;

fig. 2a and 2b are schematic structural diagrams of a front hanging plate and a side hanging plate of a tip holder side guard mechanism according to an embodiment of the present invention;

fig. 3a and 3b are schematic structural diagrams of a rear hanging plate of a tip end bracket side guard mechanism and an a-a direction thereof, respectively, according to an embodiment of the present invention;

fig. 4a and 4b are schematic structural views of a rear hanging plate connecting rod of the end bracket side guard mechanism according to the embodiment of the invention in a front view and a side view respectively;

fig. 5a and 5b are schematic views of a telescopic guard plate of a head support side guard mechanism and an a-a direction structure thereof, respectively, according to an embodiment of the present invention;

fig. 6a and 6b are schematic structural diagrams of a large side plate of a base of a side protection mechanism of an end socket bracket according to an embodiment of the present invention;

fig. 7a and 7b are schematic structural diagrams of a connecting rod of a large side plate of a base of a side protection mechanism of an end bracket according to an embodiment of the present invention;

fig. 8a, fig. 8B, and fig. 8c are schematic views of the side surface of the head support structure and the structures in the directions a-a and B-B, respectively, according to the embodiment of the present invention.

In the figure:

1-hinged lug, 2-lug plate, 3-fixed shaft, 4-fixed hole, 5-telescopic guard plate, 6-side guard jack, 7-connecting rod I, 8-big side plate, 9-connecting rod II, 10-bolt, 11-conveyor head, 12-base, 13-front hanging plate, 14-top beam, 15-rear hanging plate and 16-telescopic jack.

Detailed Description

The technical scheme in the embodiment of the invention is clearly and completely described below by combining the attached drawings in the embodiment of the invention; it is to be understood that the described embodiments are merely exemplary of the invention, and are not intended to limit the invention to the particular forms disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

The terms that may be used herein are first described as follows:

the term "and/or" means that either or both can be achieved, for example, X and/or Y means that both cases include "X" or "Y" as well as three cases including "X and Y".

The terms "comprising," "including," "containing," "having," or other similar terms of meaning should be construed as non-exclusive inclusions. For example: including a feature (e.g., material, component, ingredient, carrier, formulation, material, dimension, part, component, mechanism, device, process, procedure, method, reaction condition, processing condition, parameter, algorithm, signal, data, product, or article of manufacture), is to be construed as including not only the particular feature explicitly listed but also other features not explicitly listed as such which are known in the art.

The term "consisting of … …" is meant to exclude any technical feature elements not explicitly listed. If used in a claim, the term shall render the claim closed except for the inclusion of the technical features that are expressly listed except for the conventional impurities associated therewith. If the term occurs in only one clause of the claims, it is defined only to the elements explicitly recited in that clause, and elements recited in other clauses are not excluded from the overall claims.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "secured," etc., are to be construed broadly, as for example: can be fixedly connected, can also be detachably connected or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms herein can be understood by those of ordinary skill in the art as appropriate.

The terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in an orientation or positional relationship that is indicated based on the orientation or positional relationship shown in the drawings for ease of description and simplicity of description only, and are not intended to imply or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting herein.

Details which are not described in detail in the embodiments of the invention belong to the prior art which is known to the person skilled in the art. Those not specifically mentioned in the examples of the present invention were carried out according to the conventional conditions in the art or conditions suggested by the manufacturer. The reagents or instruments used in the examples of the present invention are not specified by manufacturers, and are all conventional products available by commercial purchase.

The end bracket comprises the end bracket side protection mechanism and is characterized in that a front hanging plate 13, a rear hanging plate 15, a telescopic guard plate 5, a large side plate 8 and an auxiliary mechanism of the end bracket side protection mechanism are all arranged on one side close to a coal wall.

And a scraper conveyor head 11 is arranged below the front hanging plate 13.

The rear hanging plate 15 is vertically positioned above the large side plate 8, and horizontally positioned outside the large side plate 8.

When the top beam of the end bracket rises, the telescopic guard plate 5 extends out, and the end bracket still has the weight of coincidence with the large side plate 8 when the highest use height and the telescopic guard plate 5 also extend out completely, so that the outer side of the end bracket is completely sealed.

In summary, the end bracket side guard mechanism and the end bracket of the embodiment of the present invention:

the side guard mechanism mainly comprises a front hanging plate, a rear hanging plate and a large side plate. The front hanging plate and the rear hanging plate are respectively hung on the outer side of the top beam of the end bracket from front to back, and the large side plate is installed on the outer side of the base of the end bracket (on the same side as the front hanging plate and the rear hanging plate);

the front hanging plate mainly protects the front part of the end bracket, and needs to ensure that the bracket does not interfere with a conveyor at the lowest mining height, and can be lifted under the action of a jack so as to be convenient for maintenance personnel to pass through;

the rear hanging plate is of a box-type structure and is a core component of the side protection mechanism, and the interior of the rear hanging plate is connected with a protection plate which can stretch up and down through two jacks;

the big side plate, the front hanging plate and the rear hanging plate are arranged at the same side of the bracket and are positioned below the rear hanging plate. When the support rises and falls, the telescopic guard plate in the rear hanging plate extends out or retracts, and the whole outer side of the end support is completely sealed together with the large side plate, so that coal breakage is avoided.

In order to more clearly show the technical solutions and the technical effects provided by the present invention, the following detailed description is provided for the embodiments of the present invention with specific embodiments.

Example 1

As shown in fig. 2a, 2b to 8a, 8b, 8 c:

as shown in fig. 2a and 2b, a front hanging plate 13 of an end bracket (fig. 8a, 8b and 8c) of the invention is provided, and three hinged lugs 1 of the front hanging plate are connected with an outer lug plate at the front part of a top beam 14 (fig. 8a, 8b and 8c) of the end bracket; the two sets of ear plates 2 of the front hanging plate are connected with one end of a side protection jack 6 (fig. 8a, 8b and 8c), and the other end of the side protection jack 6 is connected with a top beam 14 (fig. 8a, 8b and 8 c). When the side protection jack 6 (fig. 8a, 8b and 8c) is retracted, the front hanging plate is vertically downward to play a protection role, and when the side protection jack 6 (fig. 8a, 8b and 8c) is extended, the front hanging plate is lifted to be convenient for a maintenance worker to pass through. Since the head 11 (fig. 8a, 8b, 8c) of the scraper conveyor is arranged below the front hanging plate, the height of the front hanging plate is not too high, so that the interference between the bracket and the head of the scraper conveyor when the bracket descends is avoided.

As shown in fig. 3a and 3b, a rear hanging plate 15 of the head bracket (fig. 8a, 8b and 8c) of the invention is provided, and three hinged lugs 1 of the rear hanging plate are connected with an outer lug plate at the rear part of a top beam 14 (fig. 8a, 8b and 8c) of the head bracket; the two groups of ear plates 2 of the rear hanging plate are connected with one end of a first connecting rod 7 (shown in figures 8a, 8b and 8c), the other end of the first connecting rod 7 is connected with a top beam 14 (shown in figures 8a, 8b and 8c), the number of the first connecting rod 7 is two, and the rear hanging plate is kept vertical to the ground under the action of the first connecting rod 7. The rear hanging plate is of a box-type structure, the two groups of inner ear plates 2 are connected with the cylinder bottom end of a telescopic jack 16 (fig. 8a, 8b and 8c), and the piston rod end at the other end of the telescopic jack 16 is connected with a telescopic guard plate 5 (fig. 8a, 8b and 8 c).

Fig. 4a and 4b show a first connecting rod 7 of the head bracket (fig. 8a, 8b and 8c) according to the present invention.

As shown in fig. 5a and 5b, two sets of ear plates 2 of the telescopic protection plate of the head bracket (fig. 8a, 8b and 8c) are connected to the piston rod end of a telescopic jack 16 (fig. 8a, 8b and 8c), and under the action of the telescopic jack 16, the telescopic protection plate 5 (fig. 8a, 8b and 8c) extends or retracts inside a rear hanging plate 15 (fig. 8a, 8b and 8 c).

As shown in fig. 6a and 6b, a large side plate 8 of a head bracket (fig. 8a, 8b and 8c) according to the present invention is shown, two ear plates 2 of the large side plate are connected with a base 12 (fig. 8a, 8b and 8c) through a second connecting rod 9 (fig. 8a, 8b and 8c), the second connecting rod 9 has four pieces, two pieces are in one group, the ear plates 2 are single ear plates, and the corresponding connecting ears of the base 12 are also single ear plates; the four fixing holes 4 of the large side plate are connected with the base 12 (fig. 8a, 8b and 8c) through M24 bolts 10; the four fixed shafts 3 of the large side plate are coupled to the base 12 (fig. 8a, 8b, 8c) by means of a door shaft. The large side plate 8 is fixed to the outside of the base 12 (fig. 8a, 8b, and 8c) by the three types of connection.

Fig. 7a and 7b show a second connecting rod 9 of the head bracket (fig. 8a, 8b and 8c) according to the present invention.

As shown in fig. 8a, 8b and 8c, in order to apply the end bracket of the novel side protection mechanism, the front hanging plate 13, the rear hanging plate 15, the large side plate 8 and the attachment mechanism of the side protection mechanism of the end bracket are all installed at the same side, and are all installed at the side close to the coal side to form a protective wall in the underground application, so as to prevent the coal from falling into the bracket when the tunnel roof or the coal side is sliced.

The respective height dimensions of the front hanging plate 13, the rear hanging plate 15, the telescopic guard plate 5 and the large side plate 8 depend on the height of the bracket, and all the parts meet the requirement that the bracket can be used to the lowest height or the lowest height. As shown in fig. 8c, the rear hanging panel 15 is located above the large side panel 8, but is located at the outer side of the large side panel 8 in the left-right direction to ensure that the rack can be moved to the lowest use height or the lowest height.

When the telescopic protective plate is used, when the support is lifted to a certain height to enable the rear hanging plate 15 and the large side plate 8 to be separated, the telescopic protective plate 5 extends out to further protect. Even if the support is at the highest use height, the telescopic guard plate 5 still has the weight of the large side plate 8 when the support is completely extended out, so as to ensure the sealing effect of the side protection mechanism.

The first connecting rod 7 is in hard connection with the top beam 14 and the rear hanging plate 15, so that the stability of the rear hanging plate 15 when the working face is inclined is ensured, and meanwhile, the protection strength of the rear hanging plate 15 is improved when the coal breakage amount is large.

As mentioned above, the hanging type side protection mechanism of the invention has the advantages that the top beam is provided with the hanging type telescopic side protection mechanism, the base is provided with the fixed large side plate, so that the outer side of the end bracket is completely sealed, the hanging type side protection mechanism is the core part of the invention, the protection height is high, the hanging type side protection mechanism is not limited by the distance between the end head frame and the coal wall, the hanging type side protection mechanism and the large side plate of the base act together, and the sealing effect is good; the telescopic guard plate can extend and retract along with the height change of the support, so that the sealing range is further enlarged, and the outer side of the end support is completely closed.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims. The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Claims

1. The end bracket side protection mechanism is characterized by comprising a front hanging plate (13), a rear hanging plate (15), a telescopic protection plate (5) and a large side plate (8);

the front hanging plate (13) is hinged with an outer side ear plate at the front part of the top beam (14) of the end bracket through three hinge lugs and is hinged with one end of each of two side protection jacks (6) through two groups of ear plates, and the other end of each of the two side protection jacks (6) is hinged with the top beam (14) respectively;

the rear hanging plate (15) is hinged with an outer side ear plate at the rear part of the top beam (14) of the end bracket through three hinge lugs and is connected with one ends of two first connecting rods (7) through two groups of ear plates, the other ends of the two first connecting rods (7) are respectively connected with the top beam (14), the rear hanging plate (15) is of a box-shaped structure, the interior of the rear hanging plate is connected with the cylinder bottom ends of two telescopic jacks (16) through two groups of ear plates, and the piston rod ends at the other ends of the two telescopic jacks (16) are connected with two groups of ear plates of the telescopic guard plate (5);

the telescopic guard plate (5) is arranged in the rear hanging plate (15) in a sliding manner;

big curb plate (8) are connected through four connecting rods two (9) through two single otic placodes and two single otic placodes of base (12), and four fixed orifices (4) of big curb plate (8) are connected with base (12) through bolt (10), and four fixed axles (3) of big curb plate (8) are connected with base (12) with the door-hinge mode.

2. An end bracket comprising the end bracket side guard mechanism according to claim 1, wherein the front hanging plate (13), the rear hanging plate (15), the telescopic guard plate (5), the large side plate (8) and the auxiliary mechanisms of the end bracket side guard mechanism are all arranged on one side close to a coal side.

3. The head support according to claim 2, characterized in that below the front cladding (13) is a scraper conveyor head (11).

4. The end bracket according to claim 3, characterized in that the rear hanging plate (15) is vertically positioned above the large side plate (8), and the left-right direction is positioned outside the large side plate (8).

5. End bracket according to claim 4, characterized in that when the top beam of the end bracket is raised, the telescopic guard (5) is extended, and the end bracket still has the same weight with the large side plate (8) when the telescopic guard (5) is also fully extended at the highest use height, so that the outer side of the end bracket is completely closed.