阅读说明：本技术 支架回撤装置 (Support withdrawing device ) 是由 张立 李明忠 张建 冯立友 朱森 胡万昌 田贺 王建国 刘祥兵 辛家祥 沈品品 于 2020-11-11 设计创作，主要内容包括：本发明提出一种支架回撤装置,包括：抽架悬臂和至少一架回撤支架；所述抽架悬臂与所述回撤支架的煤壁侧相连,所述抽架悬臂用于将所述回撤支架前端的目标支架抽离当前位置,以实现快速抽架,提高回撤效率。(The invention provides a support withdrawing device, which comprises: a support withdrawing cantilever and at least one withdrawing support; the rack-pulling cantilever is connected with the coal wall side of the withdrawing support and used for pulling the target support at the front end of the withdrawing support away from the current position, so that the rack is rapidly pulled out, and the withdrawing efficiency is improved.)

1. A stent retrieval device, comprising: a support withdrawing cantilever and at least one withdrawing support;

the drawing frame cantilever is connected with the coal wall side of the withdrawing support and used for drawing the target support at the front end of the withdrawing support away from the current position.

2. The stent retrieval device of claim 1, wherein the pull rack boom comprises: the drawing frame comprises a drawing frame beam, a drawing frame chain lock and a power mechanism;

one end of the drawing frame beam is connected with one end of the drawing frame chain lock, and the other end of the drawing frame beam is connected with the power mechanism.

3. The stent retrieval device of claim 2, wherein the pull frame boom further comprises a pulley for assisting the pull frame chain lock in moving.

4. The stent retracting device according to claim 2 or 3, wherein the power mechanism is a hydraulic device or an electric device,

when the power mechanism is a hydraulic device, the drawing frame beam is the piston end of the hydraulic cylinder.

5. A stent retrieval device according to claim 2 or 3 wherein the pull chain lock is a round link chain.

6. The stent retrieval device of claim 1, wherein the retrieval stent comprises: the device comprises a top beam, a tail beam, a top beam supporting mechanism, a tail beam supporting mechanism and a base;

the tail beam supporting mechanism is arranged between the tail beam and the base;

the top beam supporting mechanism and the tail beam supporting mechanism are provided with telescopic structures, the top beam supporting mechanism is used for controlling the height of the top beam, and the tail beam supporting mechanism is used for controlling the swinging position of the tail beam.

7. The support withdrawing device as claimed in claim 6, wherein a pushing rod and a large stroke pushing power mechanism are arranged inside the base, so as to control the withdrawing support to move in the withdrawing roadway through the pushing rod and the large stroke pushing power mechanism.

8. The stent retrieval device of claim 1, further comprising: a pushing beam;

the pushing beam is arranged at the front end of the withdrawing support.

Technical Field

The invention relates to the technical field of mining machinery, in particular to a support withdrawing device.

Background

The removal of the fully mechanized coal mining face equipment of the coal mine is an essential link in the coal mining process, the hydraulic supports for supporting the top plate of the working face are large in quantity, the total weight of the hydraulic supports accounts for more than 80% of the weight of the whole working face equipment, and the removal of the hydraulic supports occupies a dominant position in measurement and difficulty in the removal work of the whole working face equipment.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.

Therefore, the invention provides a support withdrawing device to realize rapid support withdrawing and improve withdrawing efficiency.

In order to achieve the above object, the present invention provides a support retracting device, comprising a withdrawing frame cantilever and at least one retracting support; the drawing frame cantilever is connected with the coal wall side of the withdrawing support and used for drawing the target support at the front end of the withdrawing support away from the current position.

According to an embodiment of the application, the draw frame cantilever comprises: the power mechanism of the drawer frame beam and the drawer frame chain lock; one end of the drawing frame beam is connected with one end of the drawing frame chain lock, and the other end of the drawing frame beam is connected with the power mechanism.

According to an embodiment of the application, the pull frame cantilever further comprises a pulley for assisting the pull frame chain lock to move.

According to one embodiment of the application, the power mechanism is a hydraulic device or an electric device, wherein when the power mechanism is a hydraulic device, the carriage beam is a piston end of a hydraulic cylinder.

According to one embodiment of the application, the chain lock is a round-link chain.

According to one embodiment of the application, the retracting cradle comprises: the device comprises a top beam, a tail beam, a top beam supporting mechanism, a tail beam supporting mechanism and a base; the tail beam supporting mechanism is arranged between the tail beam and the base; the top beam supporting mechanism and the tail beam supporting mechanism are provided with telescopic structures, the top beam supporting mechanism is used for controlling the height of the top beam, and the tail beam supporting mechanism is used for controlling the swinging position of the tail beam.

According to an embodiment of the application, a pushing rod and a large-stroke pushing power mechanism are arranged inside the base, so that the retracting support is controlled to move in a retracting roadway through the pushing rod and the large-stroke pushing power mechanism.

According to an embodiment of the present application, the stent retracting device further includes: a pushing beam; the pushing beam is arranged at the front end of the withdrawing support.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a stent retracting device according to an embodiment of the present invention;

fig. 2 is a schematic diagram illustrating the operation of a stent retracting device according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a drawer cantilever according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a retracting bracket according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

A stent retracting device of an embodiment of the present invention will be described below with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a stent retracting device according to an embodiment of the present invention. As shown in fig. 1, a stent retracting device 100 according to an embodiment of the present application includes: a drawer boom 10 and a retraction jack 20.

Wherein, the retracting bracket 20 may be multi-rack.

The extraction bracket cantilever 10 is connected to the coal wall side of the withdrawing bracket 20, and the extraction bracket cantilever 10 is used for extracting the target bracket 30 at the front end of the withdrawing bracket 20 from the current position.

It should be noted that, as shown in fig. 2, one side of the withdrawal roadway is a coal wall side, and the other side is a gob, and the target holder 30 is perpendicular to the coal wall and located on the gob side.

Therefore, the drawing frame cantilever is arranged on the coal wall side of the withdrawing frame, so that the control force can be applied to the target frame from the front end of the target frame, and the target frame can be drawn away from the current position.

It should be understood that, in the embodiment of the present application, when the retrieval bracket 20 is multi-rack, the rack-pulling boom 10 is disposed at the most adjacent coal wall side, that is, the adjacent coal wall side of the retrieval bracket 20 adjacent to the coal wall side among the multi-rack retrieval brackets 20, thereby effectively increasing the movable space of the target bracket by disposing the rack-pulling boom at the farthest end from the target bracket in the retrieval roadway, and facilitating the target bracket to be quickly pulled away from the current position.

As a possible embodiment, as shown in fig. 3, the extraction boom 10 includes: a drawer beam 11, a drawer chain lock 12 and a power mechanism 14.

Wherein, one end of the drawer frame beam 11 is connected with one end of the drawer frame chain lock 12, and the other end of the drawer frame beam 11 is connected with the power mechanism 14.

It should be noted that the other end of the drawer link 12 may be provided with a drawer connecting device, and the drawer connecting device is used for connecting the target holder 30. Alternatively, the frame-pulling connection device may be a stable grasping mechanism such as a clamp-type manipulator, so that the target frame 30 at the distal end can be stably acted on when the power mechanism 14 provides a pulling force.

Specifically, when the power mechanism 14 provides a pulling force, the carriage beam 11 is pulled to move towards the end of the carriage cantilever 10, and drives the carriage chain lock 12 to move, so that the target bracket 30 connected by the carriage connecting device is pulled away from the current position along with the movement of the carriage chain lock 12.

From this, the support withdrawing device that this application provided can realize the frame withdrawing operation of taking out the target support through taking out the frame cantilever, need not additionally to use and takes out from equipment, moreover, takes out the frame cantilever and links to each other with the withdrawal support, can remove along with the removal of withdrawing the support, need not additionally to set up power unit to the removal of taking out the frame equipment, has effectively reduced the complexity of taking out a frame mechanism, has improved the suitability of taking out a frame mechanism.

As a possible embodiment, the draw frame cantilever 10 further comprises a pulley 15, the pulley 15 being used to assist the movement of the draw frame chain lock 12.

Alternatively, the pull frame chain lock 12 may be a round-link chain.

It should be noted that, because the rack-pulling cantilever 10 is a structure parallel to the coal wall, and the target support 30 is perpendicular to the coal wall, so that the direction of the pulling force provided by the power mechanism 14 is perpendicular to the direction of the pulling force exerted on the target support 30, in order to effectively reduce the loss while changing the direction of the pulling force, such as the friction loss between the rack-pulling chain lock 12 and the shell of the rack-pulling cantilever 10, the present application is provided with the pulley 15 on the inner side of the rack-pulling chain lock 12, and the direction of the pulling force can be changed through the circular structure of the pulley 15, and meanwhile, the loss of the pulling force in the transmission process is effectively reduced by using the rolling friction of the pulley, and the rack-pulling efficiency is effectively.

As a possible embodiment, the power mechanism 14 may be a hydraulic device or an electric device.

Wherein, when the power mechanism 14 is a hydraulic device, the support beam 11 can be a piston end of a hydraulic cylinder.

That is, the power mechanism 14 may be various, and only needs to satisfy the power that can provide effective pulling force for the pull frame chain 12, so that the pull frame chain 12 can move toward the retracting bracket 20. When the power mechanism 14 is a hydraulic device, in order to reduce the number of components and reduce the production complexity, the piston end of the hydraulic device can be directly connected with the cradle chain lock 12 as the cradle beam 11.

Further, as shown in fig. 4, the retracting bracket 20 includes: a top beam 21, a tail beam 22, a top beam support mechanism 23, a tail beam support mechanism 24 and a base 25.

Wherein, the top beam 21 is rotatably connected with the tail beam 22, the top beam support mechanism 23 is arranged between the top beam 21 and the base 25, and the tail beam support mechanism 24 is arranged between the tail beam 22 and the base 25.

The top beam support mechanism 23 and the tail beam support mechanism 24 have a telescopic structure, the top beam support mechanism 23 is used for controlling the height of the top beam 21, and the tail beam support mechanism 24 is used for controlling the swing position of the tail beam 22.

Particularly, this application can pass through supporting mechanism to the back timber and the tail boom of withdrawal support and control respectively to tail boom and back timber swivelling joint make the tail boom can fully the lower hem under tail boom supporting mechanism control, lower hem 90 for example, thereby effectively reduce the length when withdrawing support transportation state, be convenient for withdraw support well and transport in the pit.

Alternatively, the top beam support mechanism 23 may be plural, such as two or four columns, and the tail beam support mechanism 24 may be plural, such as two columns.

Optionally, the draw frame boom 10 is connected to the base 25 of the retraction frame 20.

As a possible embodiment, a pushing rod 26 and a large stroke pushing power mechanism 27 are arranged inside the base 25, so that the movement of the retraction bracket in the retraction roadway is controlled by the pushing rod 26 and the large stroke pushing power mechanism 27.

It should be noted that, this application passes power unit through adopting the large stroke for the frame moving stride of withdrawing support obtains effectively improving, and single frame moving stride can reach the width of a target support, can once only move the frame when withdrawing the support antedisplacement and put in place, thereby obviously improves the frame moving efficiency of withdrawing the support, and effectively reduces because of repeatedly supporting the roof of withdrawing the operation area and strut the roof accident that links up untimely and cause.

Further, the stent retracting device 100 further includes: the pusher beam 40.

Wherein, the pushing beam 40 is arranged at the front end of the retracting bracket 20.

When the rack retracting device 100 has a plurality of retracting racks 20, the pushing beam 40 may be provided at the front end of the retracting rack 20 as a pulling point of the retracting rack 20, and the plurality of retracting racks 20 may be sequentially shifted to a target position, thereby realizing a moving requirement of the rack retracting device 100.

In conclusion, the support withdrawing device that this application provided can realize the frame withdrawing operation to the target support through taking out the frame cantilever, need not additionally to use and takes out from equipment, and moreover, takes out the frame cantilever and links to each other with the withdrawal support, can remove along with the removal of withdrawing the support, need not additionally to set up power unit to the removal of taking out the frame equipment, has effectively reduced the complexity of taking out a frame mechanism, has improved the suitability of taking out a frame mechanism.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

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.