CN214997753U - Top beam shield beam waste rock blocking device - Google Patents

Abstract

The utility model relates to a coal mining equipment technical field especially relates to a back timber shield beam keeps off cash device. The mine underground. The utility model has the advantages that: compared with the traditional waste rock blocking plate, the sponge waste rock blocking device has better elasticity, and the volume of the device can be expanded when the top beam and the shield beam are close to and away from each other, so that the function of shielding the area is achieved.

Description

Top beam shield beam waste rock blocking device

Technical Field

The utility model relates to a coal mining equipment technical field especially relates to a back timber shield beam keeps off cash device.

Background

During coal mining, broken coal and gangue fall at the hinged position of the top beam and the shield beam to affect an operation area below the support, and in order to avoid the situation, most of the existing hydraulic supports are used for welding a steel plate to serve as a gangue blocking plate to protect the hinged area.

However, the waste rock blocking plate has obvious defects: firstly, the waste rock blocking plate is easily scratched and falls off by a coal bed or waste rocks at the top in the advancing process of the support; secondly, the waste rock blocking plate positioning pin is easy to deform during positioning welding, so that the overturning is blocked, and even the waste rock blocking plate positioning pin is jacked by a shield beam to fall off.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome not enough among the prior art, provide a back timber screen beam keeps off cash device, change this device into at present and replace the board of keeping off cash with the better sponge fender cash device of elasticity, fix the lower extreme at back timber afterbody with this device, when back timber and screen beam are close to and leave, can stretch out and draw back its volume, reach the function of shielding this region. The device can effectively avoid several defects of the waste rock blocking plate while blocking broken coal and waste rock, and has the advantages of simple and convenient installation and low cost.

The utility model discloses a realize through following technical scheme: the utility model provides a back timber shield beam keeps off cash device, includes the base, be equipped with the stand on the base, the stand upper end articulates there is the back timber, the base links to each other with the lower extreme of preceding connecting rod and back connecting rod respectively, and the upper end of preceding connecting rod and back connecting rod links to each other with the shield beam respectively, and the right-hand member of the upper end back timber of shield beam is articulated, and the lower extreme of shield beam is articulated with the fender cash roof beam, the upper surface of back timber is equipped with barrier plate one, the upper surface of shield beam is equipped with barrier plate two, the lower extreme of barrier plate one is equipped with sponge fender cash device, sponge fender cash device arranges the lower extreme of back timber afterbody and the clearance department between the shield roof beam upper portion in.

In order to further optimize the utility model discloses, can prefer following technical scheme for use: the free state size of the sponge waste rock blocking device is as follows: 1400 × 150 × 135mm, maximum compressed size: 1400 × 150 × 35 mm.

Preferably, the sponge waste rock blocking device is of a concave structure, a locking nut is arranged at a concave position of the sponge waste rock blocking device, and the locking nut is connected with a stud arranged on the lower surface of the top beam.

Preferably, the number of the locknuts and the studs is two.

Preferably, the outer ring of the locknut is provided with a large gasket.

The beneficial effects of the utility model reside in that: the utility model provides a back timber shield beam keeps off cash device, includes the base, be equipped with the stand on the base, the stand upper end articulates there is the back timber, the base links to each other with the lower extreme of preceding connecting rod and the lower extreme of back connecting rod respectively, and the upper end of preceding connecting rod and back connecting rod links to each other with the shield beam respectively, and the right-hand member of the upper end back timber of shield beam articulates, and the lower extreme of shield beam articulates with keeps off the cash beam, the upper surface of back timber is equipped with barrier plate one, the upper surface of shield beam is equipped with barrier plate two, the lower extreme of barrier plate one is equipped with sponge fender cash device, sponge fender cash device arranges the clearance department between the lower extreme of back timber afterbody and shield beam upper portion in, during the coal mining, at the articulated department of back timber and shield beam, has garrulous coal and cash to fall down, influences the operation area below the support, generally welds a steel sheet as keeping off cash for avoiding the emergence of this kind of circumstances, compares traditional fender cash, the sponge waste rock blocking device has good elasticity, and the volume of the device can be expanded when the top beam and the shield beam approach or leave, so that the function of shielding the area is achieved.

Drawings

Figure 1 is the overall structure diagram of the utility model,

figure 2 is an enlarged view of the utility model at A in figure 1,

the device comprises a top beam 1, a top beam 2, a shield beam 3, barrier plates I and 4, barrier plates II and 5, a base 6, a rear connecting rod 7, a front connecting rod 8, a stand column 9, a waste rock blocking beam 10, a sponge waste rock blocking device 11, a locknut 12 and a large gasket.

Detailed Description

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 in the present invention can be understood in specific cases to those skilled in the art.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

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, 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.

Example 1

Referring to fig. 1-2, which are a specific embodiment of the present invention, a roof beam and shield beam waste rock blocking device comprises a base 5, wherein a column 8 is arranged on the base 5, a roof beam 1 is hinged to the upper end of the column 8, the base 5 is respectively connected to the lower end of a front connecting rod 7 and the lower end of a rear connecting rod 6, the upper ends of the front connecting rod 7 and the rear connecting rod 6 are respectively connected to a shield beam 2, the right end of the upper roof beam 1 at the upper end of the shield beam 2 is hinged, the lower end of the shield beam 2 is hinged to a waste rock blocking beam 9, the upper surface of the roof beam 1 is provided with a first barrier plate 3, the upper surface of the shield beam 2 is provided with a second barrier plate 4, the lower end of the first barrier plate 3 is provided with a sponge waste rock blocking device 10, the sponge waste rock blocking device 10 is arranged at the gap between the lower end of the tail part of the roof beam 1 and the upper part of the shield beam 2, when mining, at the hinged part of the roof beam 1 and the shield beam 2, crushed coal and the crushed coal fall down, which affect the operation area below a support, in order to avoid the situation, a steel plate is generally welded to serve as a waste rock blocking plate, compared with the traditional waste rock blocking plate, the sponge waste rock blocking device 10 is good in elasticity, and when the top beam 1 and the shield beam 2 approach and leave, the size of the device can be expanded, so that the function of shielding the area is achieved.

The sponge waste rock blocking device 10 can flexibly stretch out and draw back according to different use working conditions, and the free state size of the sponge waste rock blocking device 10 is as follows: 1400 × 150 × 135mm, maximum compressed size: 1400 × 150 × 35 mm.

Sponge keeps off cash device 10 and is the structure of "concave" font, as shown in fig. 2, under the operating mode of difference, the cooperation angle of back timber 1 and shield roof beam 2 is different, two 4 of flexible contact barrier plates in right side of sponge fender cash device 10, the depressed part of sponge fender cash device 10 is equipped with lock nut 11, lock nut 11 with establish the double-screw bolt connection at the back timber lower surface, the size of screw is M10 a 30, lock nut 11 and the size phase-match of screw, sponge fender cash device 10 drops when avoiding back timber 1 to use repeatedly.

The number of locknut 11 and double-screw bolt is two, and locknut 11 outer lane is equipped with big gasket 12, and fixed effect is better more firm.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims (5)

1. The utility model provides a back timber shield roof beam keeps off cash device, includes base, preceding connecting rod, back connecting rod, shield roof beam and keeps off the cash roof beam, be equipped with the stand on the base, the stand upper end articulates there is the back timber, the base links to each other with the lower extreme of preceding connecting rod and back connecting rod respectively, and the upper end of preceding connecting rod and back connecting rod links to each other with the shield roof beam respectively, and the upper end of shield roof beam is articulated with the right-hand member of back timber, and the lower extreme of shield roof beam is articulated with keeping off the cash roof beam, its characterized in that: the upper surface of back timber is equipped with barrier plate one, the upper surface of shield roof beam is equipped with barrier plate two, the lower extreme of barrier plate one is equipped with sponge waste rock blocking device, sponge waste rock blocking device arranges the lower extreme of back timber afterbody and the clearance department between shield roof beam upper portion in.

2. The roof beam shield beam waste rock blocking device of claim 1, characterized in that: the free state size of the sponge waste rock blocking device is as follows: 1400 × 150 × 135mm, maximum compressed size: 1400 × 150 × 35 mm.

3. The roof beam shield beam waste rock blocking device of claim 1, characterized in that: the sponge waste rock blocking device is of a concave structure, a locking nut is arranged at the concave position of the sponge waste rock blocking device, and the locking nut is connected with a stud arranged on the lower surface of the top beam.

4. The roof beam shield beam waste rock blocking device of claim 3, characterized in that: the number of the locknuts and the studs is two.

5. The roof beam shield beam waste rock blocking device of claim 3, characterized in that: and the outer ring of the locknut is provided with a large gasket.

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