Movable hydraulic support

Abstract

The invention provides a movable hydraulic support. The movable hydraulic support comprises a first support body. The second support and the first support are arranged in a spaced mode in the first direction, and the first support and the second support can support different positions of the roadway; the pushing device is respectively connected with the first bracket and the second bracket; the supporting height of the first support and the supporting height of the second support can be adjusted, when the second support is used for supporting, the pushing device can push the first support to move relative to the second support, and when the first support is used for supporting, the pushing device can push the second support to move relative to the first support. According to the movable hydraulic support, in the support moving process, the first support and the second support alternately support and are matched with the pushing device to achieve relative movement, it is ensured that a roadway top plate is always supported in the support moving process, and the safety and continuity of roadway supporting are improved. And meanwhile, the frame moving efficiency is improved, the coal mining efficiency is further improved, and the mining cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of coal mine tunnel supporting equipment, and in particular to a movable hydraulic support. Background Art

[0002] In the process of coal mining, tunnel support is the key link to ensure safe production. As an important equipment for tunnel support, the performance of hydraulic support directly affects the stability and mining efficiency of the tunnel.

[0003] At present, the common way to support the tunnel is to use unit supports. Unit supports cannot be moved in groups and most of them need to be disassembled, transported and reinstalled one by one. This operation method not only consumes a lot of manpower, material resources and time, but also leads to frequent interruptions of mining operations, greatly reducing the efficiency of coal mining. Moreover, during the process of moving the supports one by one, the tunnel roof will be temporarily unsupported or insufficiently supported, further increasing the safety risk.

[0004] Therefore, how to design a hydraulic support that can improve the efficiency of frame movement and always have support on the tunnel roof during the frame movement 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-mentioned purpose, the present invention provides a movable hydraulic support, comprising: a first support; a second support, which is spaced apart from the first support along a first direction, and the first support and the second support can support different positions of the tunnel; a pushing device, which is respectively connected to the first support and the second support; wherein the supporting heights of the first support and the second support are adjustable, and when the second support is supporting, the pushing device can push the first support to move relative to the second support, and when the first support is supporting, the pushing device can push the second support to move relative to the first support.

[0008] According to the movable hydraulic support provided by the present invention, it includes a first support and a second support arranged at intervals along a first direction, and the first direction can be understood as the length direction between the first support and the second support, that is, the direction in which the hydraulic support moves forward and backward. The first support and the second support can simultaneously support the roof of different positions of the tunnel, and the push device provides power transmission for the movement of the first support or the second support. When the support needs to be moved, the support height of one of the supports (the first support or the second support) is lowered to make it detached from the roof of the tunnel, and the support is pushed to move by the push device, and the roof of the tunnel is supported by another support. When the support moves to a suitable position, the height of the support is adjusted to the support height to support the tunnel, thereby completing the moving work of one of the supports. Then the support height of the other support is lowered to complete the moving work of the other support. In the present application, during the entire moving process of the hydraulic support, the first support and the second support are alternately supported, and the relative movement is achieved in cooperation with the push device, so as to ensure that the roof of the tunnel is always supported during the moving process, thereby improving the safety and continuity of the tunnel support. At the same time, this design can greatly improve the efficiency of frame movement because there is no need to dismantle, transport and reinstall each support one by one, further improving 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, optionally, the second support includes: a scraper conveyor; a plurality of second support rod assemblies, which are arranged on the scraper conveyor at intervals along the first direction, and the support height of the second support rod assemblies can be adjusted; a plurality of second support beams, which are arranged on each second support rod assembly for supporting the tunnel.

[0011] In this embodiment, a plurality of second support rod assemblies are installed on the scraper conveyor at intervals along the first direction, and the support height of each second support rod assembly can be adjusted independently, so that the height of each second support rod assembly can be flexibly adjusted according to the actual ups and downs of the tunnel roof. When there are uneven areas on the tunnel roof, the support heights of the second support rod assemblies are adjusted separately to match the shape of the roof. By arranging a plurality of second support beams on each second support rod assembly, when the second support rod assembly is adjusted to a suitable height, the second support beams can directly contact the tunnel roof and transfer the pressure from the roof to the scraper conveyor, thereby achieving effective support for the tunnel roof. At the same time, the second bracket composed of a plurality of second support rod assemblies and second support beams is used to complete the support work of the roofs at multiple different positions in the tunnel.

[0012] During the frame moving process, the second support rod assembly cooperates with the first bracket and the pushing device to first lower the support height of the second support rod assembly to make the second support beam separate from the top plate. After moving to a new position with the scraper conveyor, the support height is raised again to allow the second support beam to be in close contact with the top plate again and continue to play a supporting role.

[0013] In some embodiments, optionally, the second support rod assembly includes: a first column, which is arranged on the scraper conveyor and located on one side of the scraper conveyor in the width direction; and a second column, which is arranged 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, and the two columns are respectively arranged on both sides of the scraper conveyor along the width direction, and jointly provide support for the second support beam above. The support heights of the first column and the second column can be adjusted collaboratively or individually according to the actual situation of the tunnel roof. When the tunnel roof is relatively flat, the two columns can be raised or lowered synchronously to ensure that the second support beam can horizontally fit the tunnel roof to achieve uniform support. When the roof is partially tilted or uneven, the second support beam can be adapted to the shape of the roof by adjusting the support heights of the first column and the second column respectively to ensure the support effect.

[0015] In some embodiments, optionally, the first bracket includes: a support seat; a first support rod, wherein the number of the first support rods is multiple and the rods are arranged at intervals on the support seat along the first direction, and the support height of the first support rods can be adjusted; a first support beam, wherein the number of the first support beams is the same as the number of the first support rods and the beams are respectively arranged on each first support rod for supporting the tunnel.

[0016] In this embodiment, a plurality of first support rods are arranged on the support seat and spaced apart along the first direction, and a first support beam is arranged on each first support rod. Thus, a first bracket composed of a support seat, a plurality of first support rods and a plurality of first support beams can be used to achieve multi-point support along the direction of the tunnel, complete the support work of the roof at multiple different positions of the tunnel, effectively disperse the pressure on the roof, and complete the overall movement of the first bracket 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 conditions of the tunnel roof. When the tunnel roof fluctuates, the height of each first support rod is flexibly adjusted according to the specific situation to ensure that each first support beam can fit tightly with the roof. During the frame shifting process, the support height of the first support rod is adjusted according to the support status of the second support, so that the first support beam is separated from or in contact with the roof, and the relative movement with the second support is completed in cooperation with the pushing device, so as to realize the continuous support and movement of the entire hydraulic support.

[0018] In some embodiments, optionally, the support seat includes: a plurality of bases, arranged at intervals along a first direction; a connecting rod, a plurality of connecting rods, arranged between two adjacent bases, and hinged to the bases; the number of first support rods is the same as the number of bases, and a first support rod is arranged on each base.

[0019] In this embodiment, the support seat is composed of a plurality of bases and connecting rods, and the plurality of bases are arranged at intervals along the first direction. This arrangement enables the first bracket to achieve more uniform support in the tunnel and disperse the roof pressure from the first support beam. The connecting rod connects two adjacent bases and is hinged to the bases to connect the plurality of bases together. In this way, during the movement of the first bracket, the overall frame can be moved, thereby improving the efficiency of the frame movement. At the same time, when the roof of the tunnel is uneven or partially deformed, each base can rotate and move relative to each other through the hinge point of the connecting rod. For example, when the roof of a certain area sinks more, the corresponding base will be displaced and rotated to a certain extent under the pressure transmitted by the first support rod, and the connecting rod will adjust the angle accordingly, thereby maintaining the stability and support effect of the first bracket.

[0020] In some embodiments, optionally, the number of the first brackets is two, and the two first brackets are arranged in mirror symmetry.

[0021] In this embodiment, there are two first brackets in the present application, and the two first brackets are arranged in mirror symmetry and spliced ​​together. In this way, since the base of the second bracket adopts a scraper conveyor, the support seats of the two first brackets can be respectively arranged on the outside of the second bracket along the width direction to avoid mutual interference with the second bracket.

[0022] In some embodiments, optionally, the two first support beams that are arranged in mirror symmetry are an integrated structure.

[0023] In this embodiment, an integral first support beam is provided on each group of two radially symmetrical first support beams, and the first support beam is used to integrally support the top plate above, which can further improve the support effect of the hydraulic support.

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

[0025] In this embodiment, there are two first hydraulic supports, and each first hydraulic support is provided with a jack and a push seat connected to the support seat, and each push seat is connected to the scraper conveyor in the second support. When the second support needs to be moved, the jack will extend a certain length, which is transmitted to the scraper conveyor through the push seat, thereby driving the second support to move as a whole. When the second support is moved, if the first support needs to be moved, the second support is used to support the top plate, and the jack is used to shrink a certain length, thereby driving the first support to move as a whole. In the present application, in the actual moving process, according to the support status of the tunnel roof and the moving requirements, the jack is operated to extend or retract, so as to realize the alternating movement of the first support and the second support and the continuous support of the tunnel roof.

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

[0027] In this embodiment, by arranging the second bracket on the inner side of the two first brackets, that is, the width of the second bracket is smaller than the overall width of the two first brackets, the second bracket can be smoothly moved inside the first brackets, and the first bracket can also be smoothly moved outside the second bracket, thereby avoiding mutual interference between the first bracket and the second bracket, and effectively improving the efficiency of rack movement.

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

[0029] In this embodiment, a controller is used to individually control each second support rod assembly and / or first support rod. When there are uneven areas on the tunnel 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 present invention will become apparent from the following description or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

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

[0035] Figure 4 A left side view of a first bracket of one embodiment of the present invention is shown;

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

[0037] Figure 6 A left side view of a second bracket of one embodiment of the present invention is shown;

[0038] in, Figures 1 to 6 The corresponding relationship between the reference numerals and component names in the figure is:

[0039] 1 first bracket, 10 support seat, 102 base, 104 connecting rod, 12 first support rod, 14 first support beam, 2 second 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 seat. DETAILED DESCRIPTION

[0040] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0041] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0042] Refer to the following Figures 1 to 6 To describe the movable hydraulic support proposed according to some embodiments of the present application.

[0043] In one embodiment of the present application, 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, which is spaced apart from the first support 1 along a first direction, and the first support 1 and the second support 2 can support different positions of the tunnel; a pushing device 3, which is connected to the first support 1 and the second support 2 respectively; wherein the supporting heights of the first support 1 and the second support 2 are 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 comprises a first support 1 and a second support 2 arranged at intervals along a first direction. The first direction can be understood as the length direction between the first support 1 and the second support, that is, the direction in which the hydraulic support moves the support forward and backward. The first support 1 and the second support 2 can simultaneously support the roof of different positions of the tunnel, and the push 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 to separate it from the roof of the tunnel, and the push device 3 is used to push the support to move, and at this time, the other support is used to support the roof of the tunnel. When the support is moved to a suitable position, the height of the support is adjusted to the support height to support the tunnel, thereby completing the work of moving one of the supports. Then the support height of the other support is lowered to complete the work of moving the other support. In the present application, during the entire frame shifting process of the hydraulic support, the first support 1 and the second support 2 are alternately supported, and the relative movement is achieved in cooperation with the push device 3, so as to ensure that the tunnel roof is always supported during the frame shifting process, thereby improving the safety and continuity of the tunnel support. At the same time, this design can also greatly improve the frame shifting efficiency, further improve the efficiency of coal mining, and reduce mining costs, because there is no need to disassemble, transport, and reinstall each support one by one.

[0045] In some embodiments, optionally, Figure 1 , Figure 5 and Figure 6 As shown, the second bracket 2 includes: a scraper conveyor 20; a plurality of second support rod assemblies 22, which are arranged on the scraper conveyor 20 at intervals along the first direction, and the support height of the second support rod assemblies 22 can be adjusted; a plurality of second support beams 24, which are arranged on each second support rod assembly 22 and are used to support the tunnel.

[0046] In this embodiment, a plurality of second support bar assemblies 22 are installed on the scraper conveyor 20 at intervals along the first direction, and the support height of each second support bar assembly 22 can be adjusted independently, so that the height of each second support bar assembly 22 can be flexibly adjusted according to the actual ups and downs of the tunnel roof. When there are uneven areas on the tunnel roof, the support heights of each second support bar assembly 22 are adjusted separately to make it match the shape of the roof. By arranging a plurality of second support beams 24 on each second support bar assembly 22, when the second support bar assembly 22 is adjusted to a suitable height, the second support beams 24 can directly contact the tunnel roof, and transfer the pressure from the roof to the scraper conveyor 20, thereby achieving effective support for the tunnel roof. At the same time, the second bracket 2 composed of a plurality of second support bar assemblies 22 and a second support beam 24 is used to complete the support work of the roof at multiple different positions of the tunnel.

[0047] During the frame moving process, the second support rod assembly 22 cooperates with the first bracket 1 and the pushing device 3 to first lower the support height of the second support rod assembly 22 to make the second support beam 24 separate from the top plate, and then move to a new position with the scraper conveyor 20, and then raise the support height to allow the second support beam 24 to be in close contact with the top plate again and continue to play a supporting role.

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

[0049] In this embodiment, each second support rod assembly 22 includes a first column 220 and a second column 222, and the two columns are respectively arranged on both sides of the scraper conveyor 20 along the width direction, and jointly provide support for the second support beam 24 above. The support heights of the first column 220 and the second column 222 can be coordinated or individually adjusted according to the actual situation of the tunnel roof. When the tunnel roof is relatively flat, the two columns can be raised or lowered synchronously to ensure that the second support beam 24 can horizontally fit the tunnel roof to achieve uniform support. When the roof is partially tilted or uneven, the second support beam 24 can be adapted to the shape of the roof by adjusting the support heights of the first column 220 and the second column 222 respectively to ensure the support effect.

[0050] In some embodiments, optionally, Figure 1 , Figure 3 and Figure 4As shown, the first bracket 1 includes: a support seat 10; a first support rod 12, wherein the number of the first support rods 12 is multiple and is arranged at intervals on the support seat 10 along the first direction, and the support height of the first support rod 12 is adjustable; a first support beam 14, wherein the number of the first support beams 14 is the same as the number of the first support rods 12, and they are respectively arranged on each first support rod 12 for supporting the tunnel.

[0051] In this embodiment, a plurality of first support rods 12 are arranged on the support seat 10 and are arranged at intervals along the first direction, and a first support beam 14 is arranged on each first support rod 12. Thus, a first bracket 1 composed of the support seat 10, a plurality of first support rods 12 and a plurality of first support beams 14 can achieve multi-point support along the direction of the tunnel, complete the support work of the roof at multiple different positions of the tunnel, effectively disperse the roof pressure, and complete the overall movement of the first bracket 1 during the frame shifting process.

[0052] The support height of each first support rod 12 can be adjusted individually or in coordination according to the actual conditions of the tunnel roof. When the tunnel 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 can fit tightly with the roof. During the frame shifting 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 separated from or in contact with the roof, and the relative movement with the second support 2 is completed in cooperation with the pushing device 3, so as to realize the continuous support and movement of the entire hydraulic support.

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

[0054] In this embodiment, the support seat 10 is composed of a plurality of bases 102 and a connecting rod 104, and the plurality of bases 102 are arranged at intervals along the first direction. This arrangement enables the first bracket 1 to achieve more uniform support in the tunnel and disperse the roof pressure received by the first support beam 14. The connecting rod 104 connects two adjacent bases 102 and is hinged with the base 102, thereby connecting the plurality of bases 102 together, so that during the movement of the first bracket 1, the overall frame can be moved, thereby improving the efficiency of the frame movement. At the same time, when the tunnel roof is uneven or partially deformed, each base 102 can rotate and move relative to each other through the hinge point of the connecting rod 104. For example, when the roof of a certain area sinks more, the corresponding base 102 will be displaced and rotated to a certain extent under the pressure transmitted by the first support rod 12, and the connecting rod 104 will adjust the angle accordingly, thereby maintaining the stability and support effect of the first bracket 1.

[0055] In some embodiments, optionally, the number of the first brackets 1 is two, and the two first brackets 1 are arranged in mirror symmetry.

[0056] In this embodiment, there are two first brackets 1 in the present application, and the two first brackets 1 are arranged in mirror symmetry and spliced ​​together. In this way, since the base 102 of the second bracket 2 adopts a scraper conveyor 20, the support seats 10 of the two first brackets 1 can be respectively arranged on the outside of the second bracket 2 along the width direction to avoid mutual interference with the second bracket 2.

[0057] In some embodiments, optionally, the two first support beams 14 arranged in mirror symmetry are an integrated structure.

[0058] In this embodiment, an integral first support beam 14 is provided on each group of two radially symmetrical first support beams 14, and the first support beam 14 is used to integrally support the top plate above, which can further improve the supporting effect of the hydraulic support.

[0059] In some embodiments, optionally, 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 seat 10 ; a pushing seat 32 , which is connected to the other end of the jack 30 , and the other end of the pushing seat 32 is connected to the scraper conveyor 20 .

[0060] In this embodiment, there are two first hydraulic supports, each of which is provided with a jack 30 and a push seat 32 connected to the support seat 10, and each push 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 will extend a certain length and transfer it to the scraper conveyor 20 through the push seat 32, thereby driving the second support 2 to move as a whole. When the second support 2 is moved, if the first support 1 needs to be moved, the second support 2 is used to support the top plate, and the jack 30 is used to shrink a certain length, thereby driving the first support 1 to move as a whole. In the present application, in the actual moving process, according to the support status of the tunnel roof and the moving requirements, the jack 30 is operated to extend or retract, so as to realize the alternating movement of the first support 1 and the second support 2 and the continuous support of the tunnel roof.

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

[0062] In this embodiment, by arranging the second bracket 2 on the inner side of the two first brackets 1, that is, the width of the second bracket 2 is smaller than the overall width of the two first brackets 1, the second bracket 2 can be smoothly moved inside the first brackets 1, and the first bracket 1 can also be smoothly moved outside the second bracket 2, thereby avoiding mutual interference between the first bracket 1 and the second bracket 2, and effectively improving the efficiency of rack movement.

[0063] In some embodiments, optionally, the movable hydraulic support also includes: 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, a controller is used to individually control each second support rod assembly 22 and / or first support rod 12. When there are uneven areas on the tunnel 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 in the present application is further described below in conjunction with a specific embodiment.

[0066] Hydraulic supports are the main support equipment for coal mining faces to ensure safe coal mining. The mined coal needs to be transported from the tunnel to the ground by conveyors, so the tunnel also needs support. The unit supports in related technologies have poor adaptability to the uneven roof and cannot be moved in groups.

[0067] The portal hydraulic support (movable hydraulic support) of the present application is composed 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 door type hydraulic support is composed of a push seat 32 , a push 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 is composed of a scraper conveyor 20, a column (a second support rod assembly 22), and a top beam (a second support beam 24).

[0070] Both the outer gantry hydraulic support and the inner gantry hydraulic support are composed of 7 groups of columns and top beams. The lifting and lowering of the columns in each group can be controlled by a control valve to adapt to the uneven working conditions of the top plate and achieve better support effects.

[0071] The push seat of the outer door type hydraulic support is connected to the scraper conveyor 20, and the inner door type hydraulic support column is fixedly connected to the scraper conveyor 20.

[0072] The control valve is used to first lower the column of the inner gantry hydraulic support so that its top beam is separated from the top plate. At this time, the top beam of the inner gantry hydraulic support is in contact with the top plate to achieve the support effect. At this time, the scraper conveyor moves one step, moving the inner gantry hydraulic support, and at the same time, the push jack of the outer gantry hydraulic support extends one step.

[0073] After the inner gantry hydraulic support moves one step, the column is raised to make the top beam contact with the top plate to achieve support. Then the column of the outer gantry hydraulic support is lowered and the push jack is retracted one step to achieve the moving of the outer gantry hydraulic support.

[0074] Through the above, the overall automatic frame shifting can be realized, and the tunnel can be supported in real time during the frame shifting process.

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

[0076] 1) The gantry hydraulic support of the present invention can realize automatic group shifting, and can still support the tunnel roof during the shifting process;

[0077] 2) The columns of the present invention can be controlled individually to better support the tunnel roof.

[0078] In the description of the present invention, the term "plurality" refers to two or more than two. Unless otherwise clearly defined, the orientation or positional relationship indicated by the terms "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention. The terms "connection", "installation", "fixation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0079] In the description of the present invention, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In the present invention, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0080] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A movable hydraulic support, characterized in that: include: First bracket; A second bracket is arranged along the first direction and spaced apart from the first bracket, and the first bracket and the second bracket can support different positions of the tunnel; A pushing device, connected to the first bracket and the second bracket respectively; The supporting heights of the first bracket and the second bracket are adjustable. When the second bracket is supported, the pushing device can push the first bracket to move relative to the second bracket. When the first bracket is supported, the pushing device can push the second bracket to move relative to the first bracket.

2. The movable hydraulic support according to claim 1, characterized in that: The second bracket comprises: Scraper conveyor; A plurality of second support rod assemblies are arranged on the scraper conveyor at intervals along the first direction, and the support height of the second support rod assemblies is adjustable; A plurality of second support beams are arranged on each of the second support rod assemblies and are used for supporting the tunnel.

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

4. The movable hydraulic support according to claim 2, characterized in that: The first bracket comprises: Support seat; A first support rod, wherein the first support rod is a plurality of first support rods, and the first support rods are spaced apart from each other on the support seat along the first direction, and the support height of the first support rods is adjustable; First support beams, the number of which is the same as the number of the first support rods, are respectively arranged on each of the first support rods and are used to support the tunnel.

5. The movable hydraulic support according to claim 4, characterized in that: The support base comprises: A plurality of bases are arranged at intervals along the first direction; A connecting rod, wherein the connecting rod is in plurality and is disposed between two adjacent bases and is 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.

6. The movable hydraulic support according to claim 5, characterized in that: The number of the first brackets is two, and the two first brackets are arranged in mirror symmetry.

7. The movable hydraulic support according to claim 6, characterized in that: The two first support beams arranged in mirror symmetry are an integrated structure.

8. The movable hydraulic support according to any one of claims 4 to 7, characterized in that: The pushing device comprises: A jack, one end of which is connected to the support seat; A push seat is connected to the other end of the jack, and the other end of the push seat is connected to the scraper conveyor.

9. The movable hydraulic support according to any one of claims 4 to 7, characterized in that: Along the width direction of the scraper conveyor, the scraper conveyor is located between the two support seats which are arranged in mirror symmetry.

10. The movable hydraulic support according to any one of claims 4 to 7, characterized in that: The movable hydraulic support further comprises: A controller, wherein there are multiple controllers, and each of the second support rod assembly and / or the first support rod is provided with the 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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