Hydraulic support

Abstract

The application discloses a hydraulic support, which comprises a support body, two groups of support assemblies arranged side by side, two groups of driving assemblies arranged side by side and a cushion plate, wherein the support body comprises a bottom plate, two struts, a shield beam and a top beam, the two struts are arranged side by side on the bottom plate, the bottom plate is connected with the top beam through the shield beam, the support assembly comprises two first driving mechanisms arranged side by side and two support frames arranged side by side, one end of the first driving mechanism is hinged to the bottom plate, and the other end of the first driving mechanism is fixedly connected with the support frame, each group of driving assemblies comprises two second driving mechanisms arranged side by side and two third driving mechanisms arranged side by side, and one end of the second driving mechanism is hinged to the lower surface of the top beam. Therefore, the use quantity of the hydraulic support can be reduced under the condition that the roadway roof stratum is supported, the support cost of the manufacturer is reduced, and the workload during moving is reduced.

Description

Technical Field

[0001] This application relates to the technical field of coal mining equipment, and more particularly to a hydraulic support. Background Technology

[0002] Hydraulic supports are structures used to control mine pressure at coal mining faces. The mine pressure acts on the hydraulic supports as an external load. Hydraulic supports are an important component of fully mechanized mining equipment. They reliably and effectively support and control the roof of the working face, isolate the goaf, and prevent gangue from entering the longwall face and the conveyor belt. Used in conjunction with the coal mining machine, they achieve comprehensive mechanization of coal mining, resolving the contradiction between roof management and mining operations in mechanized coal mining, further improving the efficiency of mining and transportation equipment, reducing the labor intensity of coal miners, and maximizing the safety of coal miners.

[0003] In related technologies, when supporting the roof strata of a roadway, a large number of hydraulic supports are usually arranged side by side in the roadway. Due to the large number of hydraulic supports, not only is the support cost high, but the workload is also large when moving a large number of hydraulic supports. Summary of the Invention

[0004] This application aims to at least partially address one of the technical problems in the related art.

[0005] Therefore, one objective of this application is to provide a hydraulic support that can reduce the number of hydraulic supports used while ensuring support for the roof strata of the roadway, thereby reducing not only the support cost for the manufacturer but also the workload during relocation.

[0006] To achieve the above objectives, a first aspect of this application provides a hydraulic support, comprising a support body, two sets of side-by-side support components, two sets of side-by-side drive components, and a pad. The support body includes a base plate, two support columns, a shield beam, and a top beam. The two support columns are arranged side-by-side on the base plate to drive the top beam to move up and down. The base plate is connected to the top beam via the shield beam. The support components drive the pad to move up and down and support the moved pad. Each set of support components includes two side-by-side first drive mechanisms and two side-by-side support frames. One end of each first drive mechanism is hinged to the base plate, and the other end is fixedly connected to the support frame. ，The first driving mechanism is used to drive the support frame to move up and down; the driving assembly is used to drive the pad to move left and right and up and down; each driving assembly includes two second driving mechanisms arranged side by side and two third driving mechanisms arranged side by side, wherein one end of the second driving mechanism is hinged to the lower surface of the top beam, and the other end of the second driving mechanism is rotatably connected to the third driving mechanism; the third driving mechanism is pivotally connected to the top beam; the pad is disposed on the top beam, and the two third driving mechanisms are respectively attached to the pad.

[0007] According to the embodiments of this application, the hydraulic support adjusts the height and angle of the support frame by controlling the first drive mechanism so that the height of the support frame is flush with the height of the top beam. Then, the third drive mechanism is controlled to drive the pad plate to move, so that one end of the pad plate slides onto the baffle. When the other end is disengaged from the top beam, the drive assembly is stopped, and the second drive mechanism and the first drive mechanism are controlled respectively to adjust the height of the pad plate so that the height of the pad plate is flush with the top beam. Finally, the third drive mechanism is controlled to drive the pad plate closer to the top beam until it is in contact with the top beam. This reduces the number of hydraulic supports used while ensuring support for the roof strata of the roadway, which not only reduces the support cost for the manufacturer but also reduces the workload during relocation.

[0008] In addition, the hydraulic support proposed in this application may also have the following additional technical features:

[0009] In one embodiment of this application, the first driving mechanism includes a first driving member and a second driving member, wherein one end of the first driving member is hinged to the base plate, and the other end of the first driving member is hinged to the second driving member; the bottom end of the second driving member is hinged to the base plate.

[0010] In one embodiment of this application, the support frame consists of a support rod and a baffle, wherein the support rod is fixedly connected to the telescopic end of the second driving member; and the support rod is fixedly connected to the baffle.

[0011] In one embodiment of this application, the second drive mechanism includes a third drive member and a bearing housing, wherein one end of the third drive member is hinged to the lower surface of the top beam, and the other end of the third drive member is hinged to the bearing housing.

[0012] In one embodiment of this application, the third drive mechanism includes two fixed plates, a motor, a rod, and multiple rollers. Two symmetrical grooves are provided on both sides of the top beam. The two fixed plates are respectively hinged in two corresponding parallel grooves. The rod is fixedly connected between the two fixed plates. The multiple rollers are respectively fixedly connected to the rod, and the rollers are in contact with the pad. The motor is mounted on either of the two fixed plates, and the output shaft of the motor passes through the fixed plate and is fixedly connected to the rod. The bearing seat is rotatably connected to the rod.

[0013] In one embodiment of this application, two first electromagnets, a second electromagnet, and a third electromagnet are further included, wherein the two first electromagnets are respectively embedded in the corresponding baffles; the second electromagnets are embedded in the lower surface of the pad; and the third electromagnets are embedded in the upper surface of the top beam.

[0014] In one embodiment of this application, two symmetrically arranged sliders are further included; the sliders are fixedly connected to the lower surface of the pad; the upper surface of the top beam is provided with two symmetrical sliding grooves, and the two sliders are respectively slidably arranged in the corresponding sliding grooves.

[0015] In one embodiment of this application, multiple equidistant limiting plates are fixedly connected to both sides of the top beam.

[0016] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0018] Figure 1 This is a schematic diagram of a hydraulic support structure according to an embodiment of this application;

[0019] Figure 2 This is a schematic diagram of the connection structure between the second electromagnet and the third electromagnet according to an embodiment of this application;

[0020] Figure 3 This is a schematic diagram of a hydraulic support structure according to another embodiment of this application;

[0021] Figure 4 According to the embodiments of this application Figure 3 Enlarged structural diagram of area A in the middle;

[0022] Figure 5This is a schematic diagram of the structure of a hydraulic support splicing and supporting according to an embodiment of this application.

[0023] As shown in the figure: 1. Support body; 2. Support assembly; 3. Drive assembly; 4. Pad; 5. First electromagnet; 6. Second electromagnet; 7. Third electromagnet; 8. Slider; 9. Limiting plate; 10. Base plate; 11. Column; 12. Protective beam; 13. Top beam; 130. Groove; 131. Slide; 20. First drive mechanism; 21. Support frame; 200. First drive component; 201. Second drive component; 210. Support rod; 211. Baffle; 30. Second drive mechanism; 31. Third drive mechanism; 300. Third drive component; 301. Bearing seat; 310. Fixing plate; 311. Motor; 312. Rod body; 313. Roller. Detailed Implementation

[0024] Embodiments of this application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. Rather, embodiments of this application include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0025] The hydraulic support of the present application embodiment will now be described with reference to the accompanying drawings.

[0026] like Figure 1 As shown, the hydraulic support in this embodiment may include a support body 1, two sets of side-by-side support components 2, two sets of side-by-side drive components 3, and a pad 4.

[0027] The support body 1 includes a base plate 10, two support columns 11, a protective beam 12, and a top beam 13. The two support columns 11 are arranged side by side on the base plate 10 to drive the top beam 13 to move up and down. The base plate 10 is connected to the top beam 13 through the protective beam 12. The support assembly 2 is used to drive the pad 4 to move up and down and to support the moved pad 4. Each support assembly 2 includes two first drive mechanisms 20 arranged side by side and two support frames 21 arranged side by side. One end of the first drive mechanism 20 is hinged to the base plate 10, and the other end of the first drive mechanism 20 is fixedly connected to the support frame 21. ，The first drive mechanism 20 is used to drive the support frame 21 to move up and down. The drive assembly 3 is used to drive the pad 4 to move left and right and up and down. Each drive assembly 3 includes two second drive mechanisms 30 arranged side by side and two third drive mechanisms 31 arranged side by side. One end of the second drive mechanism 30 is hinged to the lower surface of the top beam 13, and the other end of the second drive mechanism 30 is rotatably connected to the third drive mechanism 31. The third drive mechanism 31 is pivotally connected to the top beam 13. The pad 4 is set on the top beam 13, and the two third drive mechanisms 31 are respectively attached to the pad 4.

[0028] It should be noted that the width of the pad 4 described in this example is greater than the width of the top beam 13, which facilitates the movement of the pad 4 by the drive component 3. The pad 4 is made of a lightweight high-strength material, which has the characteristics of high strength and light weight. This ensures the strength of its own support, and at the same time, its light weight makes it easy to move under the drive of the drive component 3. The lightweight high-strength material can be an aluminum-lithium alloy or a titanium-aluminum alloy.

[0029] Specifically, see Figure 5 When supporting the roof strata, the height and angle of the support frame 21 can be adjusted by controlling the first drive mechanism 20 according to the usage, so that the height of the support frame 21 is flush with the height of the roof beam 13. Then, the third drive mechanism 31 is controlled to drive the pad 4 to move, so that one end of the pad 4 slides onto the baffle 211. When the other end is disengaged from the roof beam 13, the drive assembly 3 is stopped. Then, the second drive mechanism 30 and the first drive mechanism 20 are controlled respectively to adjust the height of the pad 4, so that the height of the pad 4 is flush with the roof beam 13. Finally, the third drive mechanism 31 is controlled to drive the pad 4 to move closer to the roof beam 13 until it is in contact with the roof beam 13. This can reduce the number of hydraulic supports used while ensuring support for the roof strata of the roadway, which not only reduces the support cost for the manufacturer, but also reduces the workload during relocation.

[0030] In one embodiment of this application, such as Figure 1 As shown, the first driving mechanism 20 includes a first driving member 200 and a second driving member 201, wherein one end of the first driving member 200 is hinged to the base plate 10, the other end of the first driving member 200 is hinged to the second driving member 201, and the bottom end of the second driving member 201 is hinged to the base plate 10.

[0031] It should be noted that the first driving component 200 and the second driving component 201 described in this example can be telescopic hydraulic cylinders. Controlling the extension and retraction length of the piston rod of the first driving component 200 can not only adjust the rotation angle of the first driving component 200, but also limit the second driving component 201. At the same time, when not in use, the first driving component 200 and the second driving component 201 can be retracted and folded for storage, saving space.

[0032] In one embodiment of this application, such as Figure 1 As shown, the support frame 21 is composed of a support rod 210 and a baffle 211. The support rod 210 is fixedly connected to the telescopic end of the second drive member 201, and the support rod 210 is fixedly connected to the baffle 211.

[0033] It should be noted that the support rod 210 described in this example is arc-shaped and can form a triangular structure with the baffle 211, which is firm and stable, thereby further improving the stability of the second drive member 201 when supporting the baffle 211.

[0034] Specifically, in actual operation, the first driving component 200 is controlled to change the angle of the second driving component 201 according to the actual situation, and then the second driving component 201 is controlled to drive the baffle 211 to move upward via the support rod 210.

[0035] In one embodiment of this application, such as Figure 1 As shown, the second drive mechanism 30 includes a third drive member 300 and a bearing seat 301, wherein one end of the third drive member 300 is hinged to the lower surface of the top beam 13, and the other end of the third drive member 300 is hinged to the bearing seat 301.

[0036] It should be noted that, in order to improve the stability of supporting the third drive mechanism 31, the third drive component 300 described in this embodiment can be multiple and equidistantly distributed below the top beam 13. The third drive component 300 can be a hydraulic cylinder. By utilizing the extension and retraction length of the piston rod of the third drive component 300, the rotation angle of the third drive mechanism 31 can be adjusted, and the height of the third drive mechanism 31 can be changed. This allows the height of the pad 4 to be changed when the pad 4 is assembled with the top beam 13, and also provides support for the pad 4 after it is assembled with the top beam 13.

[0037] In one embodiment of this application, such as Figure 1 , Figure 3 and Figure 4 As shown, the third drive mechanism 31 includes two fixed plates 310, a motor 311, a rod 312, and multiple rollers 313. The top beam 13 has two symmetrical grooves 130 on both sides. The two fixed plates 310 are respectively hinged in the corresponding two parallel grooves 130. The rod 312 is fixedly connected between the two fixed plates 310. The multiple rollers 313 are respectively fixedly connected to the rod 312 and are in contact with the pad 4. The motor 311 is installed on either of the two fixed plates 310, and the output shaft of the motor 311 passes through the fixed plate 310 and is fixedly connected to the rod 312. The bearing seat 301 is rotatably connected to the rod 312.

[0038] It should be noted that the motor 311 described in this example is a forward and reverse motor, so the direction of movement of the pad 4 can be changed by controlling the direction of rotation of the output shaft of the motor 311.

[0039] As one possible scenario, in order to increase the friction between the roller 313 and the pad 4, the roller 313 described in this example is a polyurethane roller.

[0040] As another possibility, in order to increase the contact area between the roller 313 and the pad 4, the roller 313 can be replaced with a roller.

[0041] Specifically, in actual operation, by controlling the output shaft of motor 311 to rotate, the output shaft of motor 311 rotates simultaneously through rod 312, driving multiple rollers 313 to rotate at the same time. Relying on the friction between rollers 313 and pad 4, the pad 4 is driven to move left and right.

[0042] Furthermore, such as Figure 2 As shown, the hydraulic support may further include two first electromagnets 5, a second electromagnet 6, and a third electromagnet 7. The two first electromagnets 5 are respectively embedded in the corresponding baffles 211, the second electromagnet 6 is embedded in the lower surface of the pad 4, and the third electromagnet 7 is embedded in the upper surface of the top beam 13.

[0043] In the example of this application, when the pad 4 is located on the baffle 211, the first electromagnet 5 and the second electromagnet 6 are in contact. By controlling the first electromagnet 5 and the second electromagnet 6 to be energized, the first electromagnet 5 and the second electromagnet 6 generate a magnetic force that attracts each other and attracts each other, thereby fixing the pad 4 and improving the stability of the pad 4 when it is located above the baffle 211. In addition, when the pad 4 is located above the top beam 13, the second electromagnet 6 and the third electromagnet 7 are energized. The second electromagnet 6 and the third electromagnet 7 generate a magnetic force that attracts each other and attracts each other, thereby fixing the pad 4 and improving the stability of the pad 4 when it is located above the top beam 13.

[0044] Furthermore, such as Figure 3 and Figure 4 As shown, the hydraulic support may also include two symmetrically arranged sliders 8, which are fixedly connected to the lower surface of the pad 4. The upper surface of the top beam 13 is provided with two symmetrical sliding grooves 131, and the two sliders 8 are respectively slidably arranged in the corresponding sliding grooves 131.

[0045] In this embodiment, by setting the slider 8 to cooperate with the groove 131, the pad 4 can be limited, which can prevent the pad 4 from deviating when moving, thereby improving the stability of the pad 4 when moving.

[0046] In one embodiment of this application, such as Figure 4 As shown, multiple equidistant limiting plates 9 are fixedly connected to both sides of the top beam 13.

[0047] It should be noted that when the pad 4 is spliced ​​with the top beam 13 and is located on the same plane, the limiting plate 9 described in this example is attached to the lower surface of the pad 4 to further support the spliced ​​pad 4. This not only improves the stability of the pad 4 when it is supported, but also shares the supporting force of the third drive component 300 and improves the service life of the third drive component 300.

[0048] Specifically, see Figure 5 In actual operation, the positional distance between the support body 1 and the support body 1 is adjusted according to the width of the pad 4. The relevant personnel change the angle of the second drive component 201 by controlling the first drive component 200, and then drive the baffle 211 to move upward through the support rod 210 by controlling the second drive component 201, so that the baffle 211 is flush with the upper surface of the top beam 13.

[0049] Then, by controlling the third drive component 300, the third drive component 300 drives the rod body 312 to rotate via the bearing seat 301, so that the apex of the roller 313 is flush with the upper surface of the baffle 211. Then, by controlling the operation of the motor 311, the output shaft of the motor 311 rotates, and the rod body 312 drives multiple rollers 313 to rotate simultaneously. Relying on the friction between the rollers 313 and the pad 4, the pad 4 is driven to move, so that the pad 4 is located on the two baffles 211. Subsequently, the operation of the third drive component 300 and the second drive component 201 is controlled to drive the pad 4 to move downward, so that the upper surface of the pad 4 is flush with the upper surface of the top beam 13. At this time, the pad 4 is located between two adjacent support bodies 1, and when supporting the pad 4, the two baffles 211 are in contact with each other (see...). Figure 5 This allows them to form a triangular structure, which can leverage each other when compressed, thereby improving the stability of the roof rock layer. At the same time, it ensures that even if one of the two second drive components 201 is damaged, it can temporarily support the roof rock layer, preventing the gangue from falling instantly and protecting the relevant personnel.

[0050] After the support is completed, the third drive component 300 and the second drive component 201 are controlled to drive the pad 4 to rise. Then, the motor 311 is controlled to run. While the output shaft of the motor 311 rotates, it drives multiple rollers 313 to rotate simultaneously through the rod 312. Relying on the friction between the rollers 313 and the pad 4, the pad 4 is driven to move towards the top beam 13. When the pad 4 is completely on the top beam 13, the first drive component 200 and the second drive component 201 are controlled to retract and fold, further reducing the space occupied, thereby facilitating the handling of the support body 1.

[0051] The hydraulic support provided in this application embodiment can be applied to the support of the top rock slab of the tunnel or some projects that require support, such as the top support of tunnel excavation.

[0052] In summary, the hydraulic supports of this application embodiment can reduce the number of hydraulic supports used while ensuring support for the roof strata of the roadway. This not only reduces the support costs for manufacturers but also reduces the workload during relocation.

[0053] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0054] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0055] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A hydraulic support, characterized in that, The support body comprises a bottom plate, two support columns, a cover beam and a top beam, wherein, The two support columns are arranged side by side on the bottom plate and used to drive the top beam to move up and down; The bottom plate is connected with the top beam through the cover beam; The support assembly is used to drive the cushion plate to move up and down and support the moved cushion plate; Each group of the support assembly comprises two first driving mechanisms arranged side by side and two support frames arranged side by side, wherein, One end of the first driving mechanism is hinged to the bottom plate, and the other end of the first driving mechanism is fixedly connected with the support frame, and the first driving mechanism is used to drive the support frame to move up and down; The driving assembly is used to drive the cushion plate to move left and right and up and down; Each group of the driving assembly comprises two second driving mechanisms arranged side by side and two third driving mechanisms arranged side by side, wherein, One end of the second driving mechanism is hinged to the lower surface of the top beam, and the other end of the second driving mechanism is rotatably connected with the third driving mechanism; The third driving mechanism is pivotally connected with the top beam; The cushion plate is arranged on the top beam, and the two third driving mechanisms are respectively attached to the cushion plate; The second driving mechanism comprises a third driving member and a bearing seat; One end of the third driving member is hinged to the lower surface of the top beam, and the other end of the third driving member is hinged to the bearing seat; The third driving mechanism comprises two fixed plates, a motor, a rod body and a plurality of rollers, wherein, Both sides of the top beam are provided with two symmetrical recesses; The two fixed plates are respectively hinged in the two recesses arranged side by side; The rod body is fixedly connected between the two fixed plates; The plurality of rollers are respectively fixedly connected on the rod body, and the rollers are attached to the cushion plate; The motor is installed on any one of the two fixed plates, and the output shaft of the motor is fixedly connected with the rod body through the fixed plate; The bearing seat is rotatably connected with the rod body. The first driving mechanism comprises a first driving member and a second driving member, wherein, 2. The hydraulic support according to claim 1, characterized in that One end of the first driving member is hinged to the bottom plate, and the other end of the first driving member is hinged to the second driving member; The bottom end of the second driving member is hinged to the bottom plate. The support frame is composed of a support rod and a baffle, wherein, 3. The hydraulic support according to claim 2, characterized in that The support rod is fixedly connected with the telescopic end of the second driving member; The support rod is fixedly connected with the baffle. Further comprising two first electromagnets, a second electromagnet and a third electromagnet, wherein, 4. The hydraulic support according to claim 3, characterized in that The two first electromagnets are respectively embedded and installed on the corresponding baffles; The second electromagnet is embedded and installed on the lower surface of the cushion plate; The third electromagnet is embedded and installed on the upper surface of the top beam. Further comprising two symmetrically arranged sliding blocks; 5. The hydraulic support of claim 1, wherein, The sliding blocks are fixedly connected to the lower surface of the cushion plate; The upper surface of the top beam is provided with two symmetrical sliding grooves, and the two sliding blocks are respectively slidingly arranged in the corresponding sliding grooves. ​ 6. The hydraulic support of claim 1, wherein, The top beam is fixedly connected with a plurality of limiting plates arranged at equal distances on both sides respectively.

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