Movable hydraulic support

Abstract

The application provides a movable hydraulic support, which comprises a first support, a second support which is arranged at intervals with the first support in a first direction, the first support and the second support can support different positions of a roadway, a pushing device which is connected with the first support and the second support respectively, wherein the supporting height of the first support and the second support is adjustable, when the second support supports, the pushing device can push the first support to move relative to the second support, when the first support supports, the pushing device can push the second support to move relative to the first support. The movable hydraulic support provided by the application can realize the relative movement of the first support and the second support through the pushing device, and the first support and the second support support alternately during the process of moving the support, so that the safety and continuity of the roadway support during the process of moving the support are ensured. Meanwhile, the efficiency of moving the support is improved, the efficiency of coal mining is further improved, and the mining cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of coal mine roadway support equipment technology, and more specifically, to a movable hydraulic support. Background Technology

[0002] In coal mining, roadway support is a crucial aspect of ensuring safe production. Hydraulic supports, as an important piece of roadway support equipment, directly affect the stability of the roadway and mining efficiency.

[0003] Currently, the common method of roadway support is to use unit supports. However, unit supports cannot be moved in groups; they mostly need to be disassembled, transported, and reinstalled one by one. This operation not only consumes a lot of manpower, resources, and time, but also leads to frequent interruptions in mining operations, greatly reducing the efficiency of coal mining. Moreover, during the process of moving the supports one by one, the roadway roof may experience temporary periods of unsupported or insufficient support, further increasing safety risks.

[0004] Therefore, how to design a hydraulic support that can improve the efficiency of moving the support and ensure that the roadway roof is always supported during the moving process has become an urgent problem to be solved. Summary of the Invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0006] Therefore, the present invention provides a movable hydraulic support.

[0007] To achieve the above objectives, the present invention provides a movable hydraulic support, comprising: a first support; a second support, arranged at intervals from the first support along a first direction, wherein the first and second supports are capable of supporting different locations in a roadway; and a pushing device connected to the first and second supports respectively; wherein the support height of the first and second supports is adjustable, and when the second support is in support, the pushing device can push the first support to move relative to the second support, and when the first support is in support, the pushing device can push the second support to move relative to the first support.

[0008] The movable hydraulic support provided by the present invention includes a first support and a second support spaced apart along a first direction, which can be understood as the length direction between the first and second supports, i.e., the direction in which the hydraulic support moves forward and backward. The first and second supports can simultaneously support the roof at different locations in the roadway, and a pushing device provides power transmission for the movement of the first or second support. When a support needs to be moved, the support height of one of the supports (the first or second support) is lowered to detach it from the roadway roof, and the pushing device is used to move the support. At this time, the other support supports the roadway roof. After the support moves to a suitable position, its height is adjusted to the support height to support the roadway, thus completing the movement of one support. Then, the support height of the other support is lowered to complete the movement of the other support. In this application, during the entire movement process of the hydraulic support, the first and second supports alternately provide support, cooperating with the pushing device to achieve relative movement, ensuring that the roadway roof is always supported during the movement process, thus improving the safety and continuity of roadway support. At the same time, this design, because it eliminates the need to disassemble, transport, and reinstall each support individually, can greatly improve the efficiency of support relocation, further enhancing the efficiency of coal mining and reducing mining costs.

[0009] In addition, the movable hydraulic support provided in this application may also have the following additional technical features:

[0010] In some embodiments, the second support may optionally include: a scraper conveyor; a plurality of second support rod assemblies spaced apart on the scraper conveyor along a first direction, the support height of the second support rod assemblies being adjustable; and a plurality of second support beams disposed on each second support rod assembly for supporting the roadway.

[0011] In this embodiment, multiple second support rod assemblies are installed at intervals along a first direction on the scraper conveyor. The support height of each second support rod assembly can be adjusted independently, allowing for flexible adjustment of the height of each assembly based on the actual undulations of the roadway roof. When there are uneven areas in the roadway roof, the support height of each second support rod assembly is adjusted to match the shape of the roof. By setting multiple second support beams on each second support rod assembly, once the second support rod assembly is adjusted to a suitable height, the second support beams can directly contact the roadway roof, transferring the pressure from the roof to the scraper conveyor, thereby achieving effective support for the roadway roof. Simultaneously, the second support frame, composed of multiple second support rod assemblies and second support beams, completes the support work for the roof at multiple different locations in the roadway.

[0012] During the relocation process, the second support rod assembly, in conjunction with the first support and the pushing device, first lowers the support height of the second support rod assembly to allow the second support beam to detach from the top plate. After moving to a new position with the scraper conveyor, the support height is then raised to allow the second support beam to re-engage tightly with the top plate and continue to perform its support function.

[0013] In some embodiments, the second support rod assembly may optionally include: a first column disposed on the scraper conveyor and located on one side of the scraper conveyor in the width direction; and a second column disposed on the scraper conveyor and located on the other side of the scraper conveyor in the width direction.

[0014] In this embodiment, each second support rod assembly includes a first column and a second column, which are respectively positioned on both sides of the scraper conveyor along its width direction, jointly providing support for the upper second support beam. The support height of the first and second columns can be adjusted collaboratively or individually according to the actual conditions of the roadway roof. When the roadway roof is relatively flat, the two columns can be raised or lowered synchronously to ensure that the second support beam can be horizontally fitted to the roadway roof, achieving uniform support. When the roof is locally tilted or uneven, the support height of the first and second columns can be adjusted separately to make the second support beam adapt to the shape of the roof, ensuring the support effect.

[0015] In some embodiments, the first support may optionally include: a support base; a plurality of first support rods, which are spaced apart on the support base along a first direction, and the support height of the first support rods is adjustable; and a first support beam, the number of first support beams being the same as the number of first support rods, which are respectively disposed on each first support rod for supporting the roadway.

[0016] In this embodiment, by setting multiple first support rods on the support base and spacing them along the first direction, and setting a first support beam on each first support rod, the first support frame composed of the support base, multiple first support rods and multiple first support beams can achieve multi-point support along the roadway direction, complete the support work for the roof at multiple different positions in the roadway, effectively disperse the roof pressure, and complete the overall movement of the first support frame during the frame shifting process.

[0017] The support height of each first support rod can be adjusted individually or in coordination according to the actual condition of the roadway roof. When the roadway roof fluctuates, the height of each first support rod is flexibly adjusted according to the specific situation to ensure that each first support beam is in close contact with the roof. During the relocation process, the support height of the first support rods is adjusted according to the support status of the second support, so that the first support beams are detached from or in contact with the roof. This, combined with the pushing device, completes the relative movement with the second support, realizing continuous support and movement of the entire hydraulic support.

[0018] In some embodiments, the support may optionally include: a plurality of bases spaced apart along a first direction; a plurality of connecting rods disposed between two adjacent bases and hinged to the bases; and a number of first support rods equal to the number of bases, with each base having a first support rod.

[0019] In this embodiment, the support base consists of multiple bases and connecting rods. The multiple bases are arranged at intervals along a first direction. This arrangement allows the first support to achieve more uniform support in the roadway, dispersing the roof pressure from the first support beam. The connecting rods connect adjacent bases and are hinged to the bases, thus connecting multiple bases together. This allows for overall frame movement during the movement of the first support, improving the efficiency of the frame movement. Simultaneously, when the roadway roof is uneven or locally deformed, each base can rotate and move relative to the other through the hinge points of the connecting rods. For example, when the roof in a certain area subsides significantly, the corresponding base will undergo a certain degree of displacement and rotation under the pressure transmitted by the first support rod, and the connecting rod will adjust its angle accordingly, thereby maintaining the stability and support effect of the first support.

[0020] In some embodiments, the number of first supports may be two, and the two first supports are arranged in a mirror-symmetrical manner.

[0021] In this embodiment, there are two first supports in this application. The two first supports are arranged in a mirror-symmetrical manner and spliced ​​together. In this way, since the base of the second support adopts a scraper conveyor, the support seats of the two first supports can be respectively set on the outer side of the second support along the width direction, avoiding mutual interference with the second support.

[0022] In some embodiments, the two first support beams arranged in a mirror-symmetric configuration may optionally be an integral structure.

[0023] In this embodiment, an integral first support beam is set on each of the two radially symmetrical first support beams. The first support beam is used to provide overall support for the top plate above, which can further improve the support effect of the hydraulic support.

[0024] In some embodiments, the pushing device may optionally include: a jack, one end of which is connected to a support base; and a pushing base, the other end of which is connected to a scraper conveyor.

[0025] In this embodiment, there are two first hydraulic supports. Each first hydraulic support is equipped with a jack and a sliding seat connected to a support base. Each sliding seat is connected to a scraper conveyor in the second support. When the second support needs to be moved, the jack extends a certain length and transmits the movement to the scraper conveyor through the sliding seat, thereby driving the second support to move as a whole. After the second support is moved, when the first support needs to be moved, the second support supports the roof, and the jack retracts a certain length, thereby driving the first support to move as a whole. In this application, during the actual support relocation process, the jack is extended or retracted according to the roadway roof support status and relocation requirements to achieve alternating movement of the first and second supports and continuous support for the roadway roof.

[0026] In some embodiments, optionally, the scraper conveyor is located between two mirror-symmetrically arranged support seats along the width direction of the scraper conveyor.

[0027] In this embodiment, by placing the second support inside the two first supports, that is, by making the width of the second support smaller than the overall width of the two first supports, the second support can move smoothly inside the first supports, while the first supports can also move smoothly outside the second support, thereby avoiding mutual interference between the first and second supports and effectively improving the efficiency of moving the support.

[0028] In some embodiments, the movable hydraulic support may optionally include: a controller, wherein there are multiple controllers, and each second support rod assembly and / or first support rod is provided with a controller for individually adjusting the support height of each second support rod assembly and / or first support rod.

[0029] In this embodiment, each second support rod assembly and / or first support rod is individually controlled by a controller. When there are uneven areas on the roadway roof, the support height of each second support rod assembly and / or first support rod can be flexibly adjusted to match the shape of the roof, thereby improving the support effect of the hydraulic support.

[0030] Additional aspects and advantages of the invention will become apparent in the following description or may be learned by practice of the invention. Attached Figure Description

[0031] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0032] Figure 1 A schematic diagram of the structure of a hydraulic support according to an embodiment of the present invention is shown;

[0033] Figure 2A left view of a hydraulic support according to an embodiment of the present invention is shown;

[0034] Figure 3 A schematic diagram of the structure of a first support according to an embodiment of the present invention is shown;

[0035] Figure 4 A left view of the first bracket according to an embodiment of the present invention is shown;

[0036] Figure 5 A schematic diagram of the structure of the second support according to an embodiment of the present invention is shown;

[0037] Figure 6 A left view of the second bracket according to an embodiment of the present invention is shown;

[0038] in, Figures 1 to 6 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0039] 1 First support bracket, 10 Support base, 102 Base, 104 Connecting rod, 12 First support rod, 14 First support beam, 2 Second support bracket, 20 Scraper conveyor, 22 Second support rod assembly, 220 First column, 222 Second column, 24 Second support beam, 3 Pushing device, 30 Jack, 32 Pushing base. Detailed Implementation

[0040] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0041] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0042] The following reference Figures 1 to 6 This application describes a movable hydraulic support proposed according to some embodiments.

[0043] In one embodiment of this application, such as Figure 1 , Figure 2 , Figure 3 and Figure 5As shown, a movable hydraulic support is provided, comprising: a first support 1; a second support 2, arranged at intervals from the first support 1 along a first direction, wherein the first support 1 and the second support 2 can support different positions in the roadway; and a pushing device 3, which is connected to the first support 1 and the second support 2 respectively; wherein the support height of the first support 1 and the second support 2 is adjustable, and when the second support 2 is supporting, the pushing device 3 can push the first support 1 to move relative to the second support 2, and when the first support 1 is supporting, the pushing device 3 can push the second support 2 to move relative to the first support 1.

[0044] The movable hydraulic support provided by the present invention includes a first support 1 and a second support 2 spaced apart along a first direction, which can be understood as the length direction between the first support 1 and the second support, i.e., the direction in which the hydraulic support moves forward and backward. The first support 1 and the second support 2 can simultaneously support the roof at different locations in the roadway, and the pushing device 3 provides power transmission for the movement of the first support 1 or the second support 2. When it is necessary to move the support, the support height of one of the supports (the first support 1 or the second support 2) is lowered so that it is detached from the roof of the roadway, and the pushing device 3 is used to push the support to move it. At this time, the other support is used to support the roof of the roadway. After the support moves to a suitable position, the height of the support is adjusted to the support height to support the roadway, thereby completing the movement of one support. Then the support height of the other support is lowered to complete the movement of the other support. In this application, during the entire relocation process of the hydraulic support, the first support 1 and the second support 2 provide alternating support, working in conjunction with the pushing device 3 to achieve relative movement. This ensures that the roadway roof is always supported during the relocation process, improving the safety and continuity of roadway support. Furthermore, this design, by eliminating the need to disassemble, transport, and reinstall each support individually, significantly improves the relocation efficiency, further enhancing coal mining efficiency and reducing mining costs.

[0045] In some embodiments, optionally, such as Figure 1 , Figure 5 and Figure 6 As shown, the second support 2 includes: a scraper conveyor 20; a plurality of second support rod assemblies 22, which are spaced apart on the scraper conveyor 20 along a first direction, and the support height of the second support rod assemblies 22 is adjustable; and a plurality of second support beams 24, which are disposed on each second support rod assembly 22 for supporting the roadway.

[0046] In this embodiment, multiple second support rod assemblies 22 are installed at intervals along a first direction on the scraper conveyor 20. The support height of each second support rod assembly 22 can be adjusted independently, allowing for flexible adjustment of the height of each second support rod assembly 22 according to the actual undulations of the roadway roof. When there are uneven areas in the roadway roof, the support height of each second support rod assembly 22 is adjusted to match the shape of the roof. By respectively setting multiple second support beams 24 on each second support rod assembly 22, when the second support rod assembly 22 is adjusted to a suitable height, the second support beams 24 can directly contact the roadway roof, transmitting the pressure from the roof to the scraper conveyor 20, thereby achieving effective support for the roadway roof. Simultaneously, the second bracket 2, composed of multiple second support rod assemblies 22 and second support beams 24, completes the support work for the roof at multiple different locations in the roadway.

[0047] During the frame relocation process, the second support rod assembly 22, in conjunction with the first support 1 and the pushing device 3, first lowers the support height of the second support rod assembly 22 so that the second support beam 24 is detached from the top plate. After moving to a new position with the scraper conveyor 20, the support height is then raised so that the second support beam 24 is in close contact with the top plate again and continues to play a supporting role.

[0048] In some embodiments, optionally, such as Figure 5 and Figure 6 As shown, the second support rod assembly 22 includes: a first column 220, which is disposed on the scraper conveyor 20 and located on one side of the width direction of the scraper conveyor 20; and a second column 222, which is disposed on the scraper conveyor 20 and located on the other side of the width direction of the scraper conveyor 20.

[0049] In this embodiment, each second support rod assembly 22 includes a first column 220 and a second column 222. The two columns are respectively arranged on both sides of the scraper conveyor 20 along the width direction, jointly providing support for the upper second support beam 24. The support height of the first column 220 and the second column 222 can be adjusted collaboratively or individually according to the actual situation of the roadway roof. When the roadway roof is relatively flat, the two columns can be raised or lowered synchronously to ensure that the second support beam 24 can be horizontally fitted to the roadway roof, achieving uniform support. When the roof is locally tilted or uneven, the support height of the first column 220 and the second column 222 can be adjusted separately to make the second support beam 24 adapt to the shape of the roof, ensuring the support effect.

[0050] In some embodiments, optionally, such as Figure 1 , Figure 3 and Figure 4As shown, the first support 1 includes: a support base 10; a first support rod 12, the number of which is multiple, and they are spaced apart on the support base 10 along a first direction, and the support height of the first support rod 12 can be adjusted; and a first support beam 14, the number of which is the same as the number of the first support rods 12, and they are respectively set on each first support rod 12 for supporting the roadway.

[0051] In this embodiment, by setting multiple first support rods 12 on the support base 10 and spacing them along the first direction, and setting a first support beam 14 on each first support rod 12, the first support 1 composed of the support base 10, multiple first support rods 12 and multiple first support beams 14 can achieve multi-point support along the roadway direction, complete the support work for the roof at multiple different positions in the roadway, effectively disperse the roof pressure, and complete the overall movement of the first support 1 during the moving process.

[0052] The support height of each first support rod 12 can be adjusted individually or in coordination according to the actual condition of the roadway roof. When the roadway roof fluctuates, the height of each first support rod 12 is flexibly adjusted according to the specific situation to ensure that each first support beam 14 is in close contact with the roof. During the relocation process, the support height of the first support rod 12 is adjusted according to the support status of the second support 2, so that the first support beam 14 is detached from or in contact with the roof, and in conjunction with the pushing device 3, the relative movement with the second support 2 is completed, realizing the continuous support and movement of the entire hydraulic support.

[0053] In some embodiments, optionally, such as Figure 1 , Figure 3 and Figure 4 As shown, the support base 10 includes: a plurality of bases 102, spaced apart along a first direction; a plurality of connecting rods 104, which are disposed between two adjacent bases 102 and hinged to the bases 102; and the number of first support rods 12 is the same as the number of bases 102, with each base 102 having a first support rod 12.

[0054] In this embodiment, the support base 10 consists of multiple bases 102 and connecting rods 104. The multiple bases 102 are arranged at intervals along a first direction. This arrangement allows the first support 1 to achieve more uniform support in the roadway, dispersing the roof pressure from the first support beam 14. The connecting rod 104 connects two adjacent bases 102 and is hinged to the bases 102, thereby connecting the multiple bases 102 together. This allows for overall frame movement during the movement of the first support 1, improving the efficiency of frame movement. Simultaneously, when the roadway roof is uneven or locally deformed, each base 102 can rotate and move relative to the other through the hinge points of the connecting rods 104. For example, when the roof in a certain area subsides significantly, the corresponding base 102 will undergo a certain degree of displacement and rotation under the pressure transmitted by the first support rod 12, and the connecting rod 104 will adjust its angle accordingly, thereby maintaining the stability and support effect of the first support 1.

[0055] In some embodiments, the number of first supports 1 may be two, and the two first supports 1 are arranged in a mirror-symmetrical manner.

[0056] In this embodiment, there are two first supports 1 in this application. The two first supports 1 are arranged in a mirror symmetrical manner and spliced ​​together. In this way, since the base 102 of the second support 2 adopts a scraper conveyor 20, the support seats 10 of the two first supports 1 can be respectively set on the outer side of the second support 2 along the width direction, avoiding mutual interference with the second support 2.

[0057] In some embodiments, the two first support beams 14 arranged in a mirror-symmetric manner are optionally an integral structure.

[0058] In this embodiment, an integral first support beam 14 is provided on each set of two radially symmetrical first support beams 14. The first support beam 14 is used to provide overall support for the top plate above, which can further improve the support effect of the hydraulic support.

[0059] In some embodiments, optionally, such as Figure 1 , Figure 3 and Figure 4 As shown, the pushing device 3 includes: a jack 30, one end of which is connected to the support base 10; and a pushing base 32, which is connected to the other end of the jack 30, and the other end of the pushing base 32 is connected to the scraper conveyor 20.

[0060] In this embodiment, there are two first hydraulic supports. Each first hydraulic support is equipped with a jack 30 and a pusher seat 32 connected to the support base 10. Each pusher seat 32 is connected to the scraper conveyor 20 in the second support 2. When the second support 2 needs to be moved, the jack 30 extends a certain length and transmits the movement to the scraper conveyor 20 through the pusher seat 32, thereby driving the second support 2 to move as a whole. After the second support 2 has been moved, when the first support 1 needs to be moved, the second support 2 supports the roof, and the jack 30 retracts a certain length, thereby driving the first support 1 to move as a whole. In this application, during the actual support relocation process, the jack 30 is extended or retracted according to the roadway roof support status and relocation requirements to achieve alternating movement of the first support 1 and the second support 2 and continuous support for the roadway roof.

[0061] In some embodiments, the scraper conveyor 20 is optionally located between two mirror-symmetrically arranged support seats 10 along the width direction of the scraper conveyor 20.

[0062] In this embodiment, by setting the second support 2 inside the two first supports 1, that is, the width of the second support 2 is less than the overall width of the two first supports 1, the second support 2 can move smoothly inside the first supports, and the first supports 1 can also move smoothly outside the second support 2, thereby avoiding mutual interference between the first supports 1 and the second support 2 and effectively improving the efficiency of moving the support.

[0063] In some embodiments, the movable hydraulic support may optionally include: a controller, wherein there are multiple controllers, and each second support rod assembly 22 and / or first support rod 12 is provided with a controller for individually adjusting the support height of each second support rod assembly 22 and / or first support rod 12.

[0064] In this embodiment, each second support rod assembly 22 and / or first support rod 12 is individually controlled by a controller. When there are uneven areas on the roadway roof, the support height of each second support rod assembly 22 and / or first support rod 12 can be flexibly adjusted to match the shape of the roof, thereby improving the support effect of the hydraulic support.

[0065] The movable hydraulic support of this application will be further described below with reference to a specific embodiment.

[0066] Hydraulic supports are the main support equipment in fully mechanized coal mining faces, ensuring safe coal mining. After mining, the coal needs to be transported from the roadway to the surface by conveyor, so the roadway also needs support. However, unit supports in related technologies have poor adaptability to uneven roof surfaces and cannot achieve group movement.

[0067] The portal hydraulic support (movable hydraulic support) of this application consists of two rows of outer portal hydraulic supports (a combination of two first supports 1) and inner portal hydraulic supports (second supports 2).

[0068] The outer portal hydraulic support consists of a sliding seat 32, a sliding jack (jack 30), a top beam (first support beam 14), a column (first support rod 12), a base 102, and a connecting rod 104.

[0069] The inner portal hydraulic support consists of a scraper conveyor 20, a column (second support rod assembly 22), and a top beam (second support beam 24).

[0070] Both the outer and inner portal hydraulic supports consist of 7 sets of columns and top beams. Each set of columns can be raised and lowered individually by a control valve to adapt to uneven roof conditions and achieve better support.

[0071] The outer portal hydraulic support's sliding seat is connected to the scraper conveyor 20, and the inner portal hydraulic support's column is fixedly connected to the scraper conveyor 20.

[0072] The inner portal hydraulic support column is first lowered by controlling the valve, causing its top beam to detach from the roof slab. At this point, the top beam of the inner portal hydraulic support contacts the roof slab, achieving the support effect. Then, the scraper conveyor moves one step, carrying the inner portal hydraulic support with it. Simultaneously, the pushing jacks of the outer portal hydraulic support extend one step.

[0073] After the inner portal hydraulic support has moved one step, the column is raised so that the top beam contacts the top plate, thus achieving support. Then, the column of the outer portal hydraulic support is lowered, and the moving jack is retracted one step, thus moving the outer portal hydraulic support.

[0074] The above methods enable automatic overall frame relocation, and provide real-time support for the roadway during the relocation process.

[0075] The movable hydraulic support provided by this invention has the following advantages:

[0076] 1) The portal hydraulic support of the present invention can realize automatic grouping and moving of the support, and can still support the roof of the roadway during the moving process;

[0077] 2) The support column of this invention can be controlled independently, which can better achieve the support of the roadway roof.

[0078] In the description of this invention, the term "a plurality of" refers to two or more. Unless otherwise explicitly defined, the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. The terms "connection," "installation," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0079] In the description of this invention, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this invention, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0080] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A movable hydraulic support, characterized in that, include: First support; The second support is arranged at intervals from the first support along the first direction. The first support and the second support can support different positions in the roadway. The first direction is the direction in which the movable hydraulic support moves forward and backward. A pushing device is connected to the first bracket and the second bracket respectively; The support height of the first support and the second support is adjustable. When the second support is in support, the pushing device can push the first support to move relative to the second support. When the first support is in support, the pushing device can push the second support to move relative to the first support. The second support includes: Scraper conveyor; Multiple second support rod assemblies are spaced apart on the scraper conveyor along the first direction, and the support height of the second support rod assemblies can be adjusted; Multiple second support beams are disposed on each of the second support rod assemblies for supporting the roadway; The first support includes: Support base; The first support rod, there are multiple first support rods, which are spaced apart along the first direction on the support base, and the support height of the first support rod can be adjusted; The first support beam, the number of which is the same as the number of the first support rods, is respectively installed on each of the first support rods and is used to support the roadway; The support base includes: Multiple bases are spaced apart along the first direction; A connecting rod, wherein there are multiple connecting rods, which are disposed between two adjacent bases and are hinged to the bases; The number of the first support rods is the same as the number of the bases, and each base is provided with a first support rod.

2. The movable hydraulic support according to claim 1, characterized in that, The second support rod assembly includes: The first column is installed on the scraper conveyor and located on one side of the scraper conveyor in the width direction; The second column is installed on the scraper conveyor and located on the other side of the width direction of the scraper conveyor.

3. The movable hydraulic support according to claim 1, characterized in that, The number of the first brackets is two, and the two first brackets are arranged in a mirror-symmetrical manner.

4. The movable hydraulic support according to claim 3, characterized in that, The two first support beams, which are arranged in a mirror-symmetric configuration, are an integral structure.

5. The movable hydraulic support according to claim 3 or 4, characterized in that, The pushing device includes: One end of the jack is connected to the support base; The pusher seat is connected to the other end of the jack, and the other end of the pusher seat is connected to the scraper conveyor.

6. The movable hydraulic support according to claim 3 or 4, characterized in that, Along the width direction of the scraper conveyor, the scraper conveyor is located between two support seats arranged in a mirror-symmetrical manner.

7. The movable hydraulic support according to claim 3 or 4, characterized in that, The movable hydraulic support also includes: The controller, wherein there are multiple controllers, and each of the second support rod assembly and / or the first support rod is provided with a controller, for individually adjusting the support height of each of the second support rod assembly and / or the first support rod.

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