A retraction channel hydraulic support

Abstract

This utility model relates to the technical field of mine support systems, specifically disclosing a hydraulic support for a retreat channel. It includes a base, a first linkage support, a second linkage support, and a third linkage support. The base is fixedly installed on the ground of the retreat channel and hinged to one end of the first linkage support. The other end of the first linkage support is hinged to one end of the second linkage support. The second linkage support is connected to the base via a second hydraulic support, and its other end is hinged to the third linkage support. The third linkage support is located on the lower side of the top surface of the retreat channel and is connected to the base via the first and fifth hydraulic supports. This hydraulic support for a retreat channel, through its telescopic and deformable structure, can automatically control its extension and contraction and support the retreat channel. It can be adjusted according to different construction needs, effectively improving construction efficiency. It solves the problems of existing retreat channel supports requiring on-site assembly and having low retreat efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of mine support systems, specifically, it relates to a hydraulic support for a retraction channel. Background Technology

[0002] In underground coal mining, the retreat of equipment from the fully mechanized mining face is a crucial step in the final stage of mining operations. With the increasing weight and size of fully mechanized mining equipment and the continuous breakthroughs in advance speed, the number of retreats is increasing daily. Therefore, the ability to safely and quickly retreat the fully mechanized mining face has become a significant factor restricting coal production growth and economic efficiency. Safety risks during retreat can lead to casualties, equipment damage, and impact production progress and output; slow retreat speeds will prolong the production cycle, increase costs, reduce efficiency, and negatively affect the company's profitability.

[0003] In coal mine production, the mechanical and electrical equipment in fully mechanized mining faces is numerous, large in size, and heavy, and the space is narrow, the environment is harsh, and the roof pressure is high. The retreat process is complex and requires high-quality support. Traditional retreat channels are mostly supported by full-span scaffolds, which have a good support effect and can ensure a certain level of safety. However, on-site assembly involves the handling, splicing, and debugging of components, which is cumbersome, requires a lot of manpower and time, and has high skill requirements, which seriously affects the retreat efficiency and makes it difficult to carry out the retreat work efficiently.

[0004] Based on this, the present invention proposes a hydraulic support for the retraction channel to solve the problems existing in the prior art. Utility Model Content

[0005] In view of this, the main objective of this utility model is to provide a hydraulic support for a retraction channel, so as to solve the problems of existing retraction channel supports that require on-site assembly and have low retraction efficiency.

[0006] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0007] A hydraulic support for a retraction channel includes a base, a first linkage support, a second linkage support, and a third linkage support;

[0008] The base is fixedly installed on the ground of the retraction channel and is hinged to one end of the first linkage support;

[0009] The other end of the first linkage support is hinged to one end of the second linkage support to form a bottom support transition section;

[0010] The second linkage support is connected to the base through the second hydraulic support, and the other end of the second linkage support is hinged to the third linkage support to form the retraction channel face support section.

[0011] The third linkage support is located on the lower side of the top surface of the retraction channel and is connected to the base through the first hydraulic support and the fifth hydraulic support to form a top surface support structure.

[0012] In a preferred embodiment, the first hydraulic support is vertically mounted on the base, with the lower end of the base fixedly connected to the base, and the upper end of the piston rod hinged to the third linkage support.

[0013] In a preferred embodiment, the lower base of the second hydraulic support is hinged to one end of the base near the bottom side wall of the retraction channel, and the other end of the piston rod is hinged to the second linkage support.

[0014] In a preferred embodiment, the lower end of the fifth hydraulic support is hinged to the base, and the other end of the piston rod is hinged to the third linkage support.

[0015] In a preferred embodiment, the hydraulic support for the retraction channel further includes a fourth linkage support, one end of which is rotatably connected to the third linkage support via a connecting block.

[0016] In a preferred embodiment, the connecting block and the fourth linkage support are both rotatably connected to the third linkage support via pins, and the support portion of the connecting block is located below the fourth linkage support and contacts the lower surface of the fourth linkage support; the connecting block is also connected to the third hydraulic support, and the other end of the third hydraulic support is connected to the third linkage support.

[0017] In a preferred embodiment, a fourth hydraulic support is also hinged to one end of the connecting block away from the third hydraulic support, and the piston end of the fourth hydraulic support is hinged to the fourth linkage support through a support plate.

[0018] In a preferred embodiment, the hydraulic support for the retraction channel further includes several support plates, all of which are located outside the first linkage support, the second linkage support, the third linkage support, and the fourth linkage support.

[0019] In a preferred embodiment, the base is further provided with a traction member, which is located at the front end of the traction end of the base.

[0020] In a preferred embodiment, positioning plates are symmetrically arranged on both sides of the base, and the positioning plates are matched with positioning anchors.

[0021] Compared with the prior art, this utility model provides a hydraulic support for the retraction channel, which has the following advantages:

[0022] 1. This hydraulic support for the retreat channel, with its telescopic and deformable structure, can automatically control its extension and contraction and support the retreat channel during use. This hydraulic support is flexible and versatile, can be adjusted according to different construction needs, has a high turnover rate, a wide range of applications, and is easy to use, effectively improving construction efficiency.

[0023] 2. This hydraulic support system for the retreat tunnel utilizes multiple hydraulic supports to apply prestress to the retreat tunnel during use, effectively ensuring the safety of the tunnel. This solves the problems of existing retreat tunnel supports requiring on-site assembly and resulting in low retreat efficiency. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is an assembly effect diagram of the hydraulic support for the retraction channel of this utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the hydraulic support of this utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the base of this utility model;

[0028] Figure 4 This is an assembly effect diagram of the fourth linkage support of this utility model;

[0029] Figure 5 This is a schematic diagram of the connecting block of this utility model.

[0030] 1. Base; 2. First hydraulic support; 3. Second hydraulic support; 4. First linkage support; 5. Second linkage support; 6. Third linkage support; 7. Third hydraulic support; 8. Connecting block; 9. Fourth hydraulic support; 10. Fourth linkage support; 11. Traction component; 12. Pin shaft; 13. Fifth hydraulic support; 14. Support plate; 15. Positioning plate; 16. Positioning anchor rod. Detailed Implementation

[0031] The structure of the hydraulic support for the retraction channel will be further described in detail below with reference to the accompanying drawings and embodiments of the present invention.

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0033] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments as described in this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0034] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0035] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0036] As per the instruction manual Figures 1-5 As shown, this utility model provides a technical solution:

[0037] A hydraulic support for a retraction channel is used to support the retraction channel during equipment retraction. It includes a base 1, a first linkage support 4, a second linkage support 5, and a third linkage support 6. Wherein:

[0038] The base 1 is fixedly installed on the ground of the retraction channel and is hinged to one end of the first linkage support 4 to fix the overall support bracket.

[0039] The other end of the first linkage support 4 is hinged to one end of the second linkage support 5 to form a bottom support transition section, which supports the side wall of the retreat channel near the ground of the retreat channel.

[0040] The second linkage support 5 is connected to the base 1 through the second hydraulic support 3, and the other end of the second linkage support 5 is hinged to the third linkage support 6 to form a support section for the working face of the retraction channel, which is used to support the working face of the retraction channel.

[0041] The third linkage support 6 is located on the lower side of the top surface of the retraction channel and is connected to the base 1 through the first hydraulic support 2 and the fifth hydraulic support 13 to form a stable top surface support structure to support the top wall of the retraction channel.

[0042] In a preferred embodiment, such as Figure 1 and Figure 2 As shown, a traction member 11 is also provided on the base 1. The traction member 11 is located at the front end of the traction end of the base 1 and is used to pull the base 1 during use so as to move the position of the base 1 in the retraction channel during use.

[0043] In a preferred embodiment, such as Figure 1 , Figure 2 and Figure 3 As shown, positioning plates 15 are symmetrically arranged on both sides of the base 1. The positioning plates 15 are used in conjunction with positioning anchor rods 16 to fix the base 1 in the retraction channel during use, thereby preventing the base 1 from moving in the retraction channel without human adjustment.

[0044] In a preferred embodiment, such as Figure 1 and Figure 2 As shown, the first hydraulic support 2 is vertically installed on the base 1, with its lower end fixedly connected to the base 1 and its upper end piston rod hinged to the third linkage support 6, which is used to provide vertical support for the third linkage support 6 and thus resist the downward pressure of the top wall of the retraction channel.

[0045] In a preferred embodiment, such as Figure 1 , Figure 2 and Figure 3 As shown, the lower base of the second hydraulic support 3 is hinged to one end of the base 1 near the bottom side wall of the retraction channel, and the other end of the piston rod is hinged to the second linkage support 5, thereby providing support for the hinged end of the second linkage support 5 and the first linkage support 4, so that it can resist the deformation of the side wall of the retraction channel at the hinge of the second linkage support 5 and the first linkage support 4.

[0046] In a preferred embodiment, such as Figure 1 , Figure 2 and Figure 3 As shown, the lower end of the fifth hydraulic support 13 is hinged to the base 1, and the other end of the piston rod is hinged to the third linkage support 6, thereby supporting the hinged end of the third linkage support 6 and the second linkage support 5, so that it can resist the deformation of the side wall of the tunnel at the hinge of the third linkage support 6 and the second linkage support 5, so that the third linkage support 6 can better bear the force and support the retraction tunnel.

[0047] In a preferred embodiment, such as Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the hydraulic support for the retraction channel also includes a fourth linkage support 10. One end of the fourth linkage support 10 is rotatably connected to the third linkage support 6 via a connecting block 8. It is used to support the deformation zone of the top extension section of the retraction tunnel during use.

[0048] Specifically, the connecting block 8 and the fourth linkage support 10 are both rotatably connected to the third linkage support 6 via pins 12, and the supporting part of the connecting block 8 is located below the fourth linkage support 10 and contacts the lower surface of the fourth linkage support 10. This allows the connecting block 8 to synchronously rotate the fourth linkage support 10 when the third hydraulic support 7 extends and retracts, causing the connecting block 8 to rotate upwards. The bottom end of the third hydraulic support 7 is hinged to the lower side of the third linkage support 6, and the piston end is hinged to the connecting block 8.

[0049] Specifically, a fourth hydraulic support 9 is hingedly installed at the end of the connecting block 8 away from the third hydraulic support 7. The piston end of the fourth hydraulic support 9 is hingedly connected to the fourth linkage support 10 through the support plate 14. This is used to support the cantilever end of the fourth linkage support 10 during use, preventing the fourth linkage support 10 from deforming under external deformation pressure, thus effectively supporting the deformation zone of the top extension section of the retraction tunnel.

[0050] More specifically, the support plate 14 is a connecting seat, one end of which is fixedly connected to the fourth linkage support 10, and the other end is hinged to the piston end of the fourth hydraulic support 9, and is used to support the cantilever end of the fourth linkage support 10 through the fourth linkage support 10 during use.

[0051] In a preferred embodiment, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the hydraulic support for the retraction channel also includes several support plates, all of which are located outside the first linkage support 4, the second linkage support 5, the third linkage support 6 and the fourth linkage support 10, and are used to support the retraction tunnel.

[0052] The construction process and implementation principle of the hydraulic support for the retraction channel described in this utility model include:

[0053] Before using this hydraulic support for the retreat tunnel, first use traction equipment to move the hydraulic support to the location of the retreat tunnel that needs support, and then use positioning anchor bolts 16 to fix the equipment. Then, according to the requirements, simultaneously control the first hydraulic support 2, the second hydraulic support 3, the third hydraulic support 7, the fourth hydraulic support 9, and the fifth hydraulic support 13 to open the hydraulic support. After opening, fine-tune the first hydraulic support 2, the second hydraulic support 3, the third hydraulic support 7, the fourth hydraulic support 9, and the fifth hydraulic support 13 so that the first linkage support 4, the second linkage support 5, the third linkage support 6, and the fourth linkage support 10 can stably support the inner wall of the retreat tunnel, thus supporting the retreat tunnel. This hydraulic support is flexible and can be adjusted according to different construction needs, making it widely applicable.

[0054] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.

Claims

1. A hydraulic support for a retraction channel, characterized in that, It includes a base (1), a first linkage support (4), a second linkage support (5) and a third linkage support (6); The base (1) is fixedly installed on the ground of the retraction channel and is hinged to one end of the first linkage support (4); The other end of the first linkage support (4) is hinged to one end of the second linkage support (5) to form a bottom support transition section; The second linkage support (5) is connected to the base (1) through the second hydraulic support (3), and the other end of the second linkage support (5) is hinged to the third linkage support (6) to form the retraction channel face support section; The third linkage support (6) is located on the lower side of the top surface of the retraction channel and is connected to the base (1) through the first hydraulic support (2) and the fifth hydraulic support (13) to form a top surface support structure.

2. The hydraulic support for a retraction channel as described in claim 1, characterized in that, The first hydraulic support (2) is vertically mounted on the base (1), with the lower base fixedly connected to the base (1) and the upper piston rod end hinged to the third linkage support (6).

3. The hydraulic support for a retraction channel as described in claim 1, characterized in that, The lower end of the second hydraulic support (3) is hinged to one end of the base (1) near the bottom side wall of the retraction channel, and the other end of the piston rod is hinged to the second linkage support (5).

4. The hydraulic support for a retraction channel as described in claim 1, characterized in that, The lower end of the fifth hydraulic support (13) is hinged to the base (1), and the other end of the piston rod is hinged to the third linkage support (6).

5. A hydraulic support for a retraction channel as described in claim 1, characterized in that, The hydraulic support for the retraction channel also includes a fourth linkage support (10), one end of which is rotatably connected to the third linkage support (6) via a connecting block (8).

6. A hydraulic support for a retraction channel as described in claim 5, characterized in that, The connecting block (8) and the fourth linkage support (10) are rotatably connected to the third linkage support (6) through a pin (12), and the support part of the connecting block (8) is located on the lower side of the fourth linkage support (10) and contacts the lower surface of the fourth linkage support (10); the connecting block (8) is also connected to the third hydraulic support (7), and the other end of the third hydraulic support (7) is connected to the third linkage support (6).

7. A hydraulic support for a retraction channel as described in claim 5, characterized in that, A fourth hydraulic support (9) is also hinged to one end of the connecting block (8) away from the third hydraulic support (7). The piston end of the fourth hydraulic support (9) is hinged to the fourth linkage support (10) through the support plate (14).

8. A hydraulic support for a retraction channel as described in claim 1, characterized in that, The hydraulic support for the retraction channel also includes several support plates, all of which are located outside the first linkage support (4), the second linkage support (5), the third linkage support (6), and the fourth linkage support (10).

9. A hydraulic support for a retraction channel as described in claim 1, characterized in that, The base (1) is also provided with a traction component (11), which is located at the front end of the traction end of the base (1).

10. A hydraulic support for a retraction channel as described in claim 1, characterized in that, The base (1) is also symmetrically provided with positioning plates (15) on both sides, and the positioning plates (15) are matched with the positioning anchors (16).

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