CN218493615U - Door type fore support - Google Patents

Abstract

The application relates to the technical field of coal mine roadway support technical equipment, in particular to a portal type forepoling, which comprises a first stand column, a second stand column and a hydraulic power system, wherein the first stand column and the second stand column are arranged at intervals in the left-right direction; the middle part and two sides of the top beam are both fixedly provided with a round-link chain, and one side of the round-link chain is fixedly provided with a group of ratchet wheel type chain tighteners and hooks; the door-type super-support of this application can reduce the friction in tunnel and bump the touch at the in-process of removal, has realized the mutual protection between first stand, second stand and the crossbeam through the round-link chain, has improved stability.

Description

Door type fore support

Technical Field

The application relates to the technical field of coal mine roadway support technical equipment, in particular to a portal type advance support.

Background

The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.

The portal advance support is a support which is applied to the advance roadway support of the fully mechanized coal mining face and plays a role in supporting and protecting the roadway in the fully mechanized coal mining work of the coal mine.

In the prior art, the portal type forepoling is supported by supporting columns at two sides of a roadway mostly, and in practice, the portal type forepoling has a small adjustment range, because two sides of the roadway are not flat, when the support needs to move forwards and backwards, the supporting columns can rub against two sides of the roadway or form a barrier, and the strength adjustment can damage the roadway or damage the support; in addition, the stability of the portal type forepoling is higher in the coal mine fully-mechanized mining work.

Disclosure of Invention

Based on this, to the above-mentioned technical problem, the present application provides a gate type leading support.

The technical scheme that this application solved the problem that prior art exists adopted is:

the application provides a gate-type fore support, include first stand and second stand and the hydraulic power system that sets up along left right direction interval, first stand and second stand top are fixed and are equipped with the back timber, the back timber extends along left right direction, the middle part of back timber is equipped with first post nest, and the one end of back timber is equipped with the second post nest, first post nest links to each other with first stand, the second post nest links to each other with the second stand.

Preferably, round-link chains are fixedly arranged in the middle of the top beam and on the two sides of the top beam, and a group of ratchet type chain tighteners and hooks are fixedly arranged on one side of each round-link chain.

Preferably, a first column shoe is fixedly arranged at the bottom of the first upright column; a second column shoe is fixedly arranged at the bottom of the second column; the bottoms of the first column shoe and the second column shoe are provided with uniform pointed bulges.

Preferably, the first upright and the second upright are telescopic uprights.

Preferably, the hydraulic power system is a hydraulic station, and the hydraulic station drives the first upright column and the second upright column to extend and retract through pipelines.

Preferably, a plurality of threaded holes are formed in the front surface and the rear surface of the part, located between the first upright post and the second upright post, of the top beam; the threaded hole is used for realizing bolt fixing of the top beam and the clamping mechanism.

Preferably, the clamping mechanism is a U-shaped groove, and a through hole corresponding to the threaded hole is formed in the U-shaped groove; and the bottom of the U-shaped groove is provided with a telescopic mechanism which is fixedly arranged on a platform on the transfer trolley.

Preferably, a rotating table is arranged between the U-shaped groove and the telescopic mechanism and comprises an upper rotating table and a lower rotating table which are hinged up and down, the upper rotating table is fixedly connected with the U-shaped groove, and the lower rotating table is fixedly connected with the telescopic mechanism.

Preferably, the telescopic mechanism is a jack, and the jack is connected with a hydraulic station pipeline fixedly arranged on the platform.

Compared with the prior art, the beneficial effects of this application do:

1. through changing the supporting position of the first upright post 3 to the top beam 5, the door type fore support reduces friction and touch on the roadway in the moving process, and the safety of a construction site is guaranteed while the door type fore support is protected.

2. The mutual protection among the first upright post 3, the second upright post 4 and the cross beam 5 is realized through the round-link chain 8, and the stability is improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.

Figure 1 is a front view of a portal look-ahead frame of the present application,

figure 2 is a side view of a portal look-ahead frame of the present application,

fig. 3 is a schematic structural view of a portal type advance support during adjustment and transportation according to the present application.

In the figure:

1. the device comprises a first column shoe, 2, a second column shoe, 3, a first column, 4, a second column, 5, a top beam, 6, a first column socket, 7, a second column socket, 8, a circular chain, 9, a ratchet type chain tightener, 10, a transfer trolley, 11, a platform, 12, a telescopic mechanism, 13, a rotating table, 14, a clamping mechanism, 15 and a hydraulic station.

The specific implementation mode is as follows:

the present application will be further described with reference to the following drawings and examples.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

In the present disclosure, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only relational terms determined for convenience in describing structural relationships of the parts or elements of the present disclosure, and do not refer to any parts or elements of the present disclosure, and are not to be construed as limiting the present disclosure.

Fig. 1 and 2 show a preferred embodiment of a door-type advance support of this application, door-type advance support includes first stand 3 and second stand 4 and the hydraulic power system that sets up along controlling the direction interval, first stand 3 and second stand 4 top are fixed and are equipped with back timber 5, back timber 5 extends along controlling the direction, the middle part of back timber 5 is equipped with first post nest 6, and the one end of back timber 5 is equipped with second post nest 7, first post nest 6 links to each other with first stand 3, second post nest 7 links to each other with second stand 4. In this embodiment, the first column 3 and the second column 4 are both telescopic columns, the hydraulic power system is a hydraulic station 15, and the hydraulic station 15 drives the first column 3 and the second column 4 to extend and retract through pipelines. A first column shoe 1 is fixedly arranged at the bottom of the first upright column 3; the bottom of the second upright post 4 is fixedly provided with a second column shoe 2; even sharp-shaped bulges are arranged at the bottoms of the first column shoe 1 and the second column shoe 2.

In order to improve the stability of the top beam 5 on the roadway support, referring to fig. 1, a round-link chain 8 is fixedly arranged in the middle and at two sides of the top beam 5, referring to fig. 2, a group of ratchet type chain tighteners 9 and a hook are fixedly arranged at one side of the round-link chain 8; in this embodiment, the round-link chain 8 is formed by sleeving metal rings, and a hook can be hung in a hole of each metal ring; when the device is used, after the top beam 5 supports the top of a roadway, referring to fig. 1, one end, without a hook, of the round-link chain 8 above the first upright post 3 is connected with the hook of the round-link chain 8 above the second upright post 4, and the other end, without a hook, of the round-link chain above the second upright post 4 is connected with the hook of the round-link chain 8 above the first upright post 3, so that mutual protection between the first upright post 3 and the second upright post 4 is formed, and the stability is improved; the round-link chain 8 on the other side of the top beam 5 is connected with the round-link chain 8 on the upper part of the first upright post 3 in the same way, and it should be noted that one hook can be hung in holes of two different round rings.

Referring to fig. 3, a plurality of threaded holes are formed in a part of the front and rear surfaces of the top beam 5 between the first upright column 3 and the second upright column 4; the threaded holes are used for realizing the bolt fixing of the top beam 5 and the clamping mechanism 14. In some embodiments, the clamping mechanism 14 is a U-shaped groove, and a through hole corresponding to the threaded hole is formed on the U-shaped groove; the bottom of the U-shaped groove is provided with a telescopic mechanism 12, and the telescopic mechanism 12 is fixedly arranged on a platform 11 on the transfer trolley 10.

In some embodiments, a rotating table 13 is disposed between the U-shaped groove and the telescopic mechanism 12, the rotating table 13 includes an upper rotating table and a lower rotating table hinged up and down, the upper rotating table is fixedly connected with the U-shaped groove, and the lower rotating table is fixedly connected with the telescopic mechanism 12.

The telescopic mechanism 12 is a jack, and the jack is connected with a hydraulic station 15 pipeline fixedly arranged on the platform 11.

The door type fore support moving principle of the application is as follows:

firstly, moving a transfer trolley 10 below the portal type forepoling, paying attention to the fact that the direction of the tail of a locomotive of the transfer trolley 10 is the front-back direction of a roadway, controlling a first upright post 3 and a second upright post 4 to descend simultaneously through a hydraulic station, wherein the first upright post 3 and the second upright post 4 are both hydraulic cylinder type upright posts, in the process, a top beam 5 slowly approaches a telescopic mechanism 12 on the transfer trolley 10, a rotating platform 13 is arranged between the telescopic mechanism 12 and a U-shaped groove, and the direction of the rotating platform 13 is manually controlled to enable the rotating platform to rotate to a position which can just embed the U-shaped groove into the top beam 5; in the process, the telescopic mechanism 12 can be controlled to rise until the U-shaped groove is embedded into the top beam 5 and the through hole in the U-shaped groove corresponds to the threaded hole in the top beam 5, and then a fixing bolt is installed in the through hole to realize the fixation between the U-shaped groove and the top beam 5;

then the telescopic mechanism 12 is controlled to continuously rise until the first upright post 3 and the second upright post 4 are separated from the ground and rise above the plane of the platform 11, and then the rotating platform 13 is rotated, so that the rotation of the door-type forepoling can be realized, in the process, because one upright post 3 of the door-type forepoling is positioned in the middle of the top beam 5 instead of one side of the top beam 5, in the rotating process between door-type forepoling, the door-type forepoling hardly generates friction and obstruction to a roadway, the adjustment is convenient, and in addition, the stabilizing action of the circular ring chain 8 ensures that the adjustment process is stable;

when the door-type advance support rotates to be consistent with the front-back direction of the roadway, the telescopic mechanism 12 is controlled to descend until the first column shoe 1 and the second column shoe 2 below the first upright post 3 and the second upright post 4 of the door-type advance support are supported on the platform 11; the telescopic mechanism 12 is continuously lowered to enable the telescopic mechanism not to support the top beam 5 in the vertical direction, and finally after the supporting force point of the platform 11 on the door-type advance support is located on the first column shoe 1 and the second column shoe 2, the rotating platform 13 cannot rotate due to the gravity of the door-type advance support and the friction force between the first column shoe 1, the second column shoe 2 and the platform 11, so that the stability of the door-type advance support is ensured;

and finally, after the door-type advance support is moved to a required position, fixing the door-type advance support according to an opposite similar mode.

According to the door type fore support, the first upright post 3 is arranged below the middle part of the top beam 5, so that the friction and the touch on a roadway are reduced in the moving process of the door type fore support, the door type fore support is protected, and the safety of a construction site is guaranteed; the mutual protection among the first stand column 3, the second stand column 4 and the cross beam 5 is realized through the round-link chain 8, the stability is improved, and the practicability is high.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Although the embodiments of the present application have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present application, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive effort by those skilled in the art.

Claims (9)

1. The utility model provides a gate-type fore-stock, includes first stand (3) and second stand (4) and the hydraulic power system that set up along the left and right sides direction interval, first stand (3) and second stand (4) top are fixed and are equipped with back timber (5), its characterized in that:

roof beam (5) extend along left right direction, the middle part of roof beam (5) is equipped with first post nest (6), and the one end of roof beam (5) is equipped with second post nest (7), first post nest (6) link to each other with first stand (3), second post nest (7) link to each other with second stand (4).

2. The portal advance support of claim 1, wherein:

the middle part and the two sides of the top beam (5) are both fixedly provided with a round-link chain (8), and one side of the round-link chain (8) is fixedly provided with a group of ratchet type chain tighteners (9) and a hook.

3. A portal advance support as claimed in claim 1, wherein:

a first column shoe (1) is fixedly arranged at the bottom of the first upright column (3); a second column shoe (2) is fixedly arranged at the bottom of the second upright post (4); the bottoms of the first column shoe (1) and the second column shoe (2) are provided with uniform pointed bulges.

4. The portal advance support of claim 1, wherein:

the first upright post (3) and the second upright post (4) are both telescopic upright posts.

5. A portal advance support as claimed in claim 1, wherein:

the hydraulic power system is a hydraulic station (15), and the hydraulic station (15) drives the first upright post (3) and the second upright post (4) to stretch and retract through pipelines.

6. A portal advance support as claimed in claim 1, wherein:

a plurality of threaded holes are formed in the front surface and the rear surface of the part, located between the first upright post (3) and the second upright post (4), of the top beam (5); the threaded holes are used for realizing the bolt fixation of the top beam (5) and the clamping mechanism (14).

7. The portal look-ahead support of claim 6, wherein:

the clamping mechanism (14) is a U-shaped groove, and a through hole corresponding to the threaded hole is formed in the U-shaped groove; the bottom of the U-shaped groove is provided with a telescopic mechanism (12), and the telescopic mechanism (12) is fixedly arranged on a platform (11) on the transfer trolley (10).

8. A portal advance support as claimed in claim 7, wherein:

a rotary table (13) is arranged between the U-shaped groove and the telescopic mechanism (12), the rotary table (13) comprises an upper rotary table and a lower rotary table which are hinged up and down, the upper rotary table is fixedly connected with the U-shaped groove, and the lower rotary table is fixedly connected with the telescopic mechanism (12).

9. A portal advance support as claimed in claim 8, wherein:

the telescopic mechanism (12) is a jack, and the jack is connected with a pipeline of a hydraulic station (15) fixedly arranged on the platform (11).

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