CN219344717U

CN219344717U - Advanced support bracket for return air gate of fully-mechanized coal mining face

Info

Publication number: CN219344717U
Application number: CN202222733472.0U
Authority: CN
Inventors: 刘学文; 杨一明; 史育龙; 张鑫升; 龚志国
Original assignee: Shanxi Jin God Sha Ping Coal Co
Current assignee: Shanxi Jin God Sha Ping Coal Co
Priority date: 2022-10-18
Filing date: 2022-10-18
Publication date: 2023-07-14
Anticipated expiration: 2032-10-18

Abstract

The utility model relates to the technical field of advanced support devices for roadway safety operation of fully-mechanized mining faces, in particular to an advanced support bracket for an air return gate of a fully-mechanized mining face, which comprises a top beam, a base, a sliding seat, a mounting plate, a screw rod, a sleeve and a top guard plate. The top guard plate of the advanced support bracket has a high stability function, the sleeve is positioned by the positioning sleeve, the sleeve is supported by the bottom of the stretched top guard plate at the edge far away from the rotary connecting piece, and the supporting strength of the top guard plate to the upper end is reinforced.

Description

Advanced support bracket for return air gate of fully-mechanized coal mining face

Technical Field

The utility model relates to the technical field of advanced support bracket devices, in particular to an advanced support bracket for a return air cis duct of a fully mechanized mining face.

Background

Coal has long been the dominant energy source for the energy consumption mode in socioeconomic activities, is an important guarantee of energy safety in China, and will remain dominant for a longer period in the future. The return air gate of the fully mechanized mining face of the traditional mining area generally adopts single hydraulic support columns for advanced support, and along with the continuous improvement of the mechanized degree of the fully mechanized mining face, the support mode is difficult to match with the high-yield and high-efficiency production mode of the fully mechanized mining face, and the support mode has the defects of low support intensity, high labor intensity of workers, low support speed and the like, although some advanced support hydraulic supports are adopted. The advanced support hydraulic supports meet the requirements of mine safety, high yield and high efficiency to a certain extent.

Through the search, patent publication number CN203223239U discloses a tunnel advance support of auxiliary machinery removal, has solved the prior art to softer coal top tunnel, long distance advance support the tunnel existence to roof repeated support, complex operation, work efficiency low grade problem, including advance support and auxiliary movement mechanism that comprises back timber, base and articulated hydraulic column between them, its technical essential is: the lower parts of two hydraulic upright posts hinged on the base are fixed together through a fastening frame, the side end of the top beam is hinged with a top protection plate by using a telescopic hydraulic cylinder, two groups of advanced support brackets are transversely arranged in parallel into a group, and a plurality of groups of advanced support brackets are respectively and continuously arranged along the longitudinal direction of a roadway to form a support for the top plate; the frame moving mechanical arm is arranged between two groups of advance support frames to be moved and matched with the transport vehicle to sequentially move each advance support frame along the longitudinal direction of the roadway. The hydraulic support has the advantages that the hydraulic support is reasonable in structural design, stable in support and convenient to operate and safe in use, the influence of advanced support operation on coal mining production of a working face is reduced, in the prior art, although a traditional four-bar mechanism is omitted in use, a fastening frame is arranged on a base to be matched with a hydraulic upright post, a top beam and the base to form a lifting structure, so that the special advanced support is small in size, light in weight and short in length, can adapt to actual use requirements of the field, is convenient to realize a support moving mode through a support moving mechanical arm and a transport vehicle, reduces the influence of advanced support operation on coal mining production of the working face, and meets the equipment installation, use and maintenance conditions of the fully-mechanized coal mining working face.

However, the defects are that: the top guard plate of the existing advanced support bracket does not have the function of high stability, the top guard plate supports the top guard plate through a hydraulic rod, the supporting point of the top guard plate is a rotating connecting piece with a hydraulic rod, the supporting strength of the rotating connecting piece is low, the supporting strength of the top guard plate at the position, which is far away from the rotating connecting piece, is lower, the rotating connecting piece is broken easily when the upper pressure is high, one end of the top guard plate does not have the supporting effect of the bottom edge, and therefore, the advanced support bracket for the fully-mechanized mining face return air along the groove is provided.

Disclosure of Invention

The utility model aims to solve the problems in the background art and provides a fully mechanized mining face return air cis-slot advanced support bracket.

The technical scheme of the utility model is as follows: the utility model provides a combine and adopt working face return air cisterna advance support, including back timber, the base, the slide, the mounting panel, the screw rod, the sleeve pipe, top guard board, base upper end one side is provided with the back timber, the base upper end is provided with the hydraulic column, the back timber inside is provided with the hydraulic stem, top guard board is installed in back timber one end rotation, top guard board below is provided with the sleeve pipe, base one side is provided with the mounting panel, the mounting panel upper end is provided with the screw rod, the sleeve pipe inner wall is provided with the screw thread, mounting panel upper end one side is provided with the slide, slide lower extreme one side is provided with the set-square, top guard board lower extreme one side is provided with the spacer sleeve.

When the hydraulic upright column at the upper end of the base is used for driving the top beam to rotate and lift when the fully mechanized mining face return air along the advanced support bracket is used, the top beam is opened, the hydraulic rod is used for pushing the top guard plate to rotate and unfold through the rotating connecting piece, the processing mounting plate is moved to the edge below the top guard plate, the rotating rotary rod is used for driving the screw rod to rotate, the screw rod rotates the internal threads of the sleeve, because one end of the sleeve slides in the sliding seat through the sliding block, the sleeve is limited, the screw rod plays a role in pushing the threads, the sleeve keeps stable longitudinal movement, the sleeve is inserted into the positioning sleeve after lifting, plays a role in positioning the upper end of the sleeve, the sleeve is prevented from being deviated when the sleeve is contacted with the top guard plate, the sleeve is prevented from being deviated when the sleeve is driven to be contacted with the upper surface of the top guard plate, the whole positioning sleeve is regulated when the sleeve is prevented from being contacted with the top guard plate, and the top guard plate supporting mechanism is kept to vertically support the edge of the top guard plate through the positioning sleeve supporting mechanism, and the two ends of the top guard plate are supported when the top guard plate is kept.

Preferably, the upper end of the hydraulic upright post is rotatably connected with the top beam. The hydraulic upright column drives the top beam to rotate and lift when in operation, so that the hydraulic upright column can be unfolded.

Preferably, a rotary connecting piece is rotatably arranged between one end of the hydraulic rod and the top guard plate. When the hydraulic rod operates, the top guard plate is pushed, and the top guard plate drives to rotate and expand through the rotating connecting piece.

Preferably, the outer wall of one side of the sleeve is provided with a connecting plate, one end of the connecting plate is provided with a sliding block, and the sliding block is slidably mounted in the sliding seat. The connecting plate is used for installing and fixing the sliding block, so that one end of the sleeve is limited, and the sleeve can slide longitudinally and stably on one side of the sliding seat.

Preferably, the lower end of the triangle is connected with the mounting plate. The triangular plate is used for installing and fixing the bottom of the sliding seat, and fixing the bottom of the sliding seat and the mounting plate.

Preferably, the bearing is embedded and installed in the upper end of the mounting plate, and the lower end of the screw rod is rotationally inserted in the bearing. The screw rod realizes the stable rotation in the mounting panel inside.

Preferably, the threads are matched with the screw, the positioning sleeve corresponds to the sleeve, and the outer wall of the lower end of the screw is provided with rotary rods distributed at equal intervals. The screw rod rotates in the sleeve pipe, the locating sleeve is inserted in the locating sleeve, the rotary rod is gripped when the screw rod is rotated, and the screw rod is rotated to obtain power assistance.

Compared with the prior art, the utility model has the following beneficial technical effects:

1. the device supports the edge of the top guard plate by using the sleeve arranged at one side of the lower end of the top guard plate, the sleeve realizes rotary lifting through the screw rod, the supporting point of the top guard plate is a rotary connecting piece with the hydraulic rod, the lower the supporting strength of the top guard plate at the position far away from the rotary connecting piece is, the problem that the rotary connecting piece is broken easily when the upper pressure is high is solved, and the bottom of one end edge of the top guard plate has a reinforcing and supporting effect;

2. the sleeve that this device set up is to sleeve pipe and the butt joint location of top backplate of lifting, and the adjustment of being convenient for when sleeve pipe skew avoids the sleeve pipe skew, and the butt joint with top backplate is more firm.

Drawings

FIG. 1 is a schematic diagram of a front view of an explosion structure of the present utility model;

FIG. 2 is a schematic diagram of a front view structure of the present utility model;

FIG. 3 is an enlarged schematic view of the main section of the positioning sleeve of FIG. 1 in accordance with the present utility model;

fig. 4 is an enlarged schematic view of the main section of the bearing of fig. 1 according to the present utility model.

Reference numerals:

1. a top beam; 2. a hydraulic column; 3. a base; 4. a connecting plate; 5. a slide; 6. a triangle; 7. a mounting plate; 8. a screw; 9. a slide block; 10. a thread; 11. a sleeve; 12. a top guard board; 13. rotating the connecting piece; 14. a hydraulic rod; 15. a positioning sleeve; 16. a bearing; 17. and (5) rotating the rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The technical scheme of the utility model is further described below with reference to the attached drawings and specific embodiments.

Embodiment one:

as shown in fig. 1, fig. 2 and fig. 4, the return air front support for the fully mechanized mining face comprises a top beam 1, a base 3, a sliding seat 5, a mounting plate 7, a screw rod 8, a sleeve 11 and a top guard plate 12, wherein the top beam 1 is arranged on one side of the upper end of the base 3, a hydraulic upright post 2 is arranged on the upper end of the base 3, the upper end of the hydraulic upright post 2 is rotationally connected with the top beam 1, a hydraulic rod 14 is arranged in the top beam 1, the top guard plate 12 is rotationally arranged at one end of the top beam 1, a rotational connecting piece 13 is rotationally arranged between one end of the hydraulic rod 14 and the top guard plate 12, the sleeve 11 is arranged below the top guard plate 12, a connecting plate 4 is arranged on the outer wall of one side of the sleeve 11, a sliding block 9 is arranged at one end of the connecting plate 4, the mounting plate 7 is arranged on one side of the base 3, the screw rod 8 is arranged at the upper end of the mounting plate 7, a screw rod 8 is arranged on the upper end of the mounting plate, a bearing 16 is embedded in the inner part of the upper end of the mounting plate 7, a screw rod 17 which is rotationally inserted in the bearing 16, a spiral rod 17 which is distributed at the lower end of the screw rod 8 is arranged at the outer wall of the equidistant position, a thread 10 is arranged on the inner wall of the sleeve 11, the thread 10 is matched with the screw rod 8, a corner plate 5 is arranged on the side, a sliding plate 5 is arranged inside the screw rod, a sliding seat 5 is arranged at the inner side, and the lower end 6 is slidably arranged at the lower end 6.

In this embodiment: the mounting panel 7 moves to top backplate 12 below edge, rotate the dwang 17 and drive screw rod 8 rotation, screw rod 8 rotates to the inside screw thread 10 of sleeve pipe 11, because sleeve pipe 11 one end is passed through slider 9 and is slided in slide 5 inside, carry out spacing to sleeve pipe 11, sleeve pipe 11 keeps stable longitudinal movement, make screw rod 8 play the promotion effect to screw thread 10, when driving sleeve pipe 11 and top backplate 12 upper surface contact, support top backplate 12 edge, make top backplate 12's both ends obtain supporting, top backplate 12's intensity has been consolidated, top backplate 12 is to the support bearing capacity of top is promoted.

Embodiment two:

as shown in fig. 1 and fig. 3, the present utility model provides a fully-mechanized coal mining face return air gate advanced support bracket, which further includes: a positioning sleeve 15 is arranged on one side of the lower end of the top guard plate 12, and the positioning sleeve 15 corresponds to the sleeve 11.

In this embodiment, the sleeve 11 corresponds to the positioning sleeve 15, and when the sleeve 11 is inserted into the positioning sleeve 15 after lifting, the upper end of the sleeve 11 is positioned, so that the sleeve 11 is prevented from being deviated when contacting with the top guard plate 12, and the supporting mechanism of the top guard plate 12 is integrally adjusted through the positioning sleeve 15 during deviation, so that the supporting mechanism of the top guard plate 12 is kept vertical.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a combine and adopt working face return air cistron advance support, includes back timber (1), base (3), slide (5), mounting panel (7), screw rod (8), sleeve pipe (11), top backplate (12), its characterized in that: the novel hydraulic lifting device is characterized in that a top beam (1) is arranged on one side of the upper end of the base (3), a hydraulic upright column (2) is arranged at the upper end of the base (3), a hydraulic rod (14) is arranged inside the top beam (1), a top guard plate (12) is rotatably arranged at one end of the top beam (1), a sleeve (11) is arranged below the top guard plate (12), a mounting plate (7) is arranged on one side of the base (3), a screw (8) is arranged at the upper end of the mounting plate (7), threads (10) are arranged on the inner wall of the sleeve (11), a sliding seat (5) is arranged on one side of the upper end of the mounting plate (7), a triangular plate (6) is arranged on one side of the lower end of the sliding seat (5), and a positioning sleeve (15) is arranged on one side of the lower end of the top guard plate (12).

2. The fully-mechanized coal mining face return air cis duct advanced support bracket of claim 1, wherein: the upper end of the hydraulic upright post (2) is rotationally connected with the top beam (1).

3. The fully-mechanized coal mining face return air cis duct advanced support bracket of claim 1, wherein: a rotary connecting piece (13) is rotatably arranged between one end of the hydraulic rod (14) and the top guard plate (12).

4. The fully-mechanized coal mining face return air cis duct advanced support bracket of claim 1, wherein: the outer wall of one side of the sleeve (11) is provided with a connecting plate (4), one end of the connecting plate (4) is provided with a sliding block (9), and the sliding block (9) is slidably mounted inside the sliding seat (5).

5. The fully-mechanized coal mining face return air cis duct advanced support bracket of claim 1, wherein: the lower end of the triangular plate (6) is connected with the mounting plate (7).

6. The fully-mechanized coal mining face return air cis duct advanced support bracket of claim 1, wherein: the bearing (16) is embedded and installed in the upper end of the mounting plate (7), and the lower end of the screw rod (8) is rotationally inserted into the bearing (16).

7. The fully-mechanized coal mining face return air cis duct advanced support bracket of claim 1, wherein: the screw thread (10) is matched with the screw rod (8), the locating sleeve (15) corresponds to the sleeve (11), and the outer wall of the lower end of the screw rod (8) is provided with rotary rods (17) which are distributed at equal intervals.