Connecting rod structure and hydraulic support

Abstract

The invention provides a connecting rod structure and a hydraulic support. The connecting rod structure comprises a first main rib plate and a second main rib plate, the second main rib plate is arranged opposite to the first main rib plate; the first cover plate is arranged between the first main rib plate and the second main rib plate and is used for connecting the first main rib plate and the second main rib plate; the second cover plate is arranged between the first main rib plate and the second main rib plate and is used for connecting the first main rib plate and the second main rib plate; the first bending plate is arranged between the first main rib plate and the second main rib plate, and the first bending plate is connected with the first cover plate and the second cover plate; and the second bending plate is arranged between the first main rib plate and the second main rib plate, and the second bending plate is connected with the first cover plate and the second cover plate. According to the technical scheme, the two cover plates are connected through the two bent plates, the ends of the two cover plates do not need to be bent, the bent plates and the cover plates are connected in a face-to-face contact mode, and the welding quality and the connection strength can be improved.

Description

Technical Field

[0001] This invention relates to the field of hydraulic support technology, and more specifically, to a linkage structure and a hydraulic support. Background Technology

[0002] Hydraulic supports are crucial support equipment in fully mechanized coal mining faces, and their safety and reliability are key factors determining whether the working face can operate safely and efficiently. The four-bar linkage mechanism is currently the most stable structural form among hydraulic supports. As the main load-bearing component of the hydraulic support, the connecting rod needs to withstand significant alternating stresses (including axial force, bending stress, and torsional stress), and its structural performance has a significant impact on the overall performance of the support.

[0003] In related technologies, such as Figure 1 and Figure 2 As shown, the connecting rod structure 100' of the hydraulic support includes two main stiffening plates 110' and two cover plates 120', and the two main stiffening plates 110' and the two cover plates 120' form a box structure. The ends of the cover plates 120' are bent, and the two cover plates 120' are connected by a line-to-line contact method. With this design, when welding the contact points of the two cover plates 120', the welding quality is not high, affecting the connection strength. Summary of the Invention

[0004] In order to solve or improve at least one of the above-mentioned technical problems, one object of the present invention is to provide a linkage structure.

[0005] Another object of the present invention is to provide a hydraulic support having the above-described linkage structure.

[0006] To achieve the above objectives, a first aspect of the present invention provides a linkage structure, comprising: a first main stiffening plate; a second main stiffening plate disposed opposite to the first main stiffening plate; a first cover plate disposed between the first main stiffening plate and the second main stiffening plate, the first cover plate being used to connect the first main stiffening plate and the second main stiffening plate; a second cover plate disposed opposite to the first cover plate, the second cover plate being disposed between the first main stiffening plate and the second main stiffening plate, the second cover plate being used to connect the first main stiffening plate and the second main stiffening plate; and a first bending plate disposed between the first main stiffening plate and the second main stiffening plate. Between the main stiffening plates, the first bent plate is connected to the first cover plate, and the first bent plate is connected to the second cover plate; the second bent plate is located between the first main stiffening plate and the second main stiffening plate, and the second bent plate is connected to the first cover plate, and the second bent plate is connected to the second cover plate; wherein, the first cover plate is located between the first bent plate and the second bent plate, and the second cover plate is located between the first bent plate and the second bent plate, the first main stiffening plate, the second main stiffening plate, the first cover plate, the second cover plate, the first bent plate and the second bent plate constitute the box structure.

[0007] According to the technical solution of the linkage structure provided by the present invention, by adding a first bending plate and a second bending plate, and the two bending plates are used to connect the first cover plate and the second cover plate, this design eliminates the need to bend the ends of the first cover plate and the second cover plate. Compared with the design method in the related art (bending the ends of the two cover plates and connecting the two cover plates through line-to-line contact), the first bending plate and the first cover plate, the first bending plate and the second cover plate, the second bending plate and the first cover plate, and the second bending plate and the second cover plate are all connected through surface-to-surface contact. This is beneficial to improving welding quality and connection strength, reducing assembly difficulty, improving assembly efficiency, and reducing costs.

[0008] Specifically, the linkage structure includes a first main stiffening plate, a second main stiffening plate, a first cover plate, a second cover plate, a first bending plate, and a second bending plate. The first and second main stiffening plates are arranged opposite to each other. Optionally, there is a certain distance between the first and second main stiffening plates, and the surfaces of the first and second main stiffening plates are parallel to each other.

[0009] It should be noted that there must be at least one first main reinforcement slab; that is, there can be one, two, or more, depending on the actual needs. Similarly, there must be at least one second main reinforcement slab; that is, there can be one, two, or more, depending on the actual needs. Typically, both the first and second main reinforcement slabs are present in a single configuration.

[0010] Furthermore, a first cover plate is disposed between the first main stiffening plate and the second main stiffening plate, and the first cover plate is used to connect the first main stiffening plate and the second main stiffening plate. A second cover plate is disposed opposite to the first cover plate. Optionally, there is a certain gap between the first cover plate and the second cover plate, and the surfaces of the first cover plate and the second cover plate are parallel to each other.

[0011] It should be noted that there must be at least one first cover plate; that is, there can be one, two, or more first cover plates, which can be flexibly set according to actual needs. Similarly, there must be at least one second cover plate; that is, there can be one, two, or more second cover plates, which can be flexibly set according to actual needs. Typically, both the first and second cover plates are one.

[0012] Optionally, the first cover plate and the first main stiffening plate are fixed to each other by welding; the first cover plate and the second main stiffening plate are also fixed to each other by welding. Optionally, the first cover plate has a welding bevel on the side facing the first main stiffening plate; the first cover plate also has a welding bevel on the side facing the second main stiffening plate. A welding bevel refers to the pre-machined form of the joint or end face of the component to be welded, such as an I-shaped structure, U-shaped structure, Y-shaped structure, or V-shaped structure. The purpose of setting a welding bevel is to improve the welding quality of the welded part.

[0013] Optionally, the second cover plate and the first main stiffening plate are fixed relative to each other by welding; the second cover plate and the second main stiffening plate are also fixed relative to each other by welding. Optionally, the second cover plate has a welding bevel on the side facing the first main stiffening plate; the second cover plate has a welding bevel on the side facing the second main stiffening plate. The purpose of setting the welding bevel is to improve the welding quality of the welded part.

[0014] Furthermore, a first bent plate is disposed between the first main stiffening plate and the second main stiffening plate. The first bent plate is connected to the first cover plate, and the first bent plate is connected to the second cover plate. Furthermore, a second bent plate is disposed between the first main stiffening plate and the second main stiffening plate. The second bent plate is connected to the first cover plate, and the second bent plate is connected to the second cover plate.

[0015] Optionally, the first cover plate is disposed between the first bending plate and the second bending plate, and the second cover plate is disposed between the first bending plate and the second bending plate.

[0016] Optionally, the first bent plate is connected to the side of the first cover plate opposite to the second cover plate, and the first bent plate is also connected to the side of the second cover plate opposite to the first cover plate. Optionally, the second bent plate is connected to the side of the first cover plate opposite to the second cover plate, and the second bent plate is also connected to the side of the second cover plate opposite to the first cover plate.

[0017] Optionally, the first bending plate and the first cover plate are fixed to each other by welding; the first bending plate and the second cover plate are fixed to each other by welding; the second bending plate and the first cover plate are fixed to each other by welding; the second bending plate and the second cover plate are fixed to each other by welding.

[0018] Optionally, the first bent plate is a U-shaped plate. The surface of the first main stiffener facing the second main stiffener is taken as the first surface, and the inner contour of the projection of the first bent plate on the first surface is the first arc, with the central angle corresponding to the first arc being 180 degrees.

[0019] Optionally, the second bent plate is a U-shaped plate. The surface of the first main stiffener facing the second main stiffener is taken as the first surface, and the inner contour of the projection of the second bent plate onto the first surface is the second arc, with the central angle corresponding to the second arc being 180 degrees.

[0020] Optionally, the first main stiffening plate, the second main stiffening plate, the first cover plate, the second cover plate, the first bent plate, and the second bent plate constitute the box structure. The box structure has a cavity; this design avoids material waste while ensuring the structural performance of the linkage structure.

[0021] In the technical solution defined by this invention, by adding a first bending plate and a second bending plate, and using the two bending plates to connect the first cover plate and the second cover plate, this design eliminates the need to bend the ends of the first cover plate and the second cover plate. Compared with the design method in related technologies (bending the ends of the two cover plates and connecting the two cover plates through line-to-line contact), the connections between the first bending plate and the first cover plate, between the first bending plate and the second cover plate, between the second bending plate and the first cover plate, and between the second bending plate and the second cover plate are all made through surface-to-surface contact. This is beneficial for improving welding quality and connection strength, reducing assembly difficulty, increasing assembly efficiency, and reducing costs.

[0022] In addition, the technical solution provided by the present invention may also have the following additional technical features:

[0023] In some technical solutions, optionally, the first cover plate has a first end and a second end disposed opposite to each other along the first direction, and the second cover plate has a third end and a fourth end disposed opposite to each other along the first direction; one end of the first bending plate is bent toward the first end, and the other end of the first bending plate is bent toward the third end; and / or one end of the second bending plate is bent toward the second end, and the other end of the second bending plate is bent toward the fourth end.

[0024] In this technical solution, the first cover plate has a first end and a second end that are oppositely disposed along a first direction. The first end and the second end are the two ends of the first cover plate that are oppositely disposed along the first direction. Optionally, the first direction is the length direction of the connecting rod structure. One end of the first bent plate is bent toward the first end, and the other end of the first bent plate is bent toward the third end.

[0025] Since the two ends of the first bending plate are bent toward the first cover plate and the second cover plate respectively, this design ensures that the first bending plate has an arc-shaped structure. The first cover plate and the second cover plate are connected by the arc-shaped first bending plate, without the need to bend the ends of the first cover plate and the second cover plate.

[0026] Optionally, the second cover plate has a third end and a fourth end that are oppositely disposed along the first direction. The third end and the fourth end are the two ends of the second cover plate that are oppositely disposed along the first direction. Optionally, the first direction is the length direction of the connecting rod structure. One end of the second bent plate is bent toward the second end, and the other end of the second bent plate is bent toward the fourth end.

[0027] Since the two ends of the second bending plate are bent toward the first cover plate and the second cover plate respectively, this design ensures that the second bending plate has an arc-shaped structure. The first cover plate and the second cover plate are connected by the arc-shaped second bending plate, without the need to bend the ends of the first cover plate and the second cover plate.

[0028] In some technical solutions, optionally, the first bent plate has a first inner side facing the first cover plate and the second cover plate, the first inner side being connected to the first cover plate and the second cover plate; and / or the second bent plate has a second inner side facing the first cover plate and the second cover plate, the second inner side being connected to the first cover plate and the second cover plate.

[0029] In this technical solution, the first bent plate has a first inner side facing the first cover plate and the second cover plate. In other words, the side of the first bent plate facing the first cover plate and the second cover plate is the first inner side. Optionally, the first bent plate has an arc-shaped structure, and the first inner side is an arc-shaped surface.

[0030] The first inner side is connected to the first cover plate, and the first inner side is connected to the second cover plate. Since the first inner side is connected to both cover plates (the first cover plate and the second cover plate), this design ensures that the first bent plate and the first cover plate, as well as the first bent plate and the second cover plate, are connected through surface-to-surface contact, which helps to improve welding quality and connection strength.

[0031] Optionally, the second bent plate has a second inner side facing the first cover plate and the second cover plate. In other words, the side of the second bent plate facing the first cover plate and the second cover plate is the second inner side. Optionally, the second bent plate has an arc-shaped structure, and the second inner side is an arc-shaped surface.

[0032] The second inner side is connected to the first cover plate, and the second inner side is connected to the second cover plate. Since the second inner side is connected to both cover plates (the first cover plate and the second cover plate), this design ensures that the second bent plate and the first cover plate, as well as the second bent plate and the second cover plate, are connected through surface-to-surface contact, which helps to improve welding quality and connection strength.

[0033] In some technical solutions, optionally, the first inner side is connected to the side of the first cover plate opposite to the second cover plate, and the first inner side is connected to the side of the second cover plate opposite to the first cover plate.

[0034] In this technical solution, this design method ensures that the first bending plate and the first cover plate, as well as the first bending plate and the second cover plate, are connected through surface-to-surface contact, which is beneficial to improving welding quality and connection strength.

[0035] In some technical solutions, optionally, the second inner side is connected to the side of the first cover plate opposite to the second cover plate, and the second inner side is connected to the side of the second cover plate opposite to the first cover plate.

[0036] In this technical solution, this design method ensures that the first bending plate and the first cover plate, as well as the first bending plate and the second cover plate, are connected through surface-to-surface contact, which is beneficial to improving welding quality and connection strength.

[0037] In some technical solutions, the linkage structure may optionally include: at least one connecting plate, the connecting plate being disposed between the first main stiffening plate and the second main stiffening plate, the connecting plate being disposed between the first cover plate and the second cover plate, the connecting plate being disposed between the first bending plate and the second bending plate, and the connecting plate being used to connect the first main stiffening plate and the second main stiffening plate.

[0038] In this technical solution, the linkage structure further includes at least one connecting plate. Specifically, the connecting plate is disposed between the first main stiffening plate and the second main stiffening plate. The connecting plate is also disposed between the first cover plate and the second cover plate. Furthermore, the connecting plate is disposed between the first bent plate and the second bent plate. The connecting plate is used to connect the first main stiffening plate and the second main stiffening plate.

[0039] Before the workers install the first and second cover plates, the relative positions of the first and second main stiffening plates are fixed by connecting plates, so that there is a preset gap between the first and second main stiffening plates. This facilitates the welding of the two cover plates in subsequent work, which helps to improve the welding quality and thus improves the connection strength between the two cover plates and the two main stiffening plates.

[0040] It is important to emphasize that the connecting plate, also known as the transverse stiffening plate, serves two purposes: firstly, it connects the first main stiffening plate and the second main stiffening plate; secondly, it strengthens the structure, thus improving the structural strength of the linkage structure. There must be at least one connecting plate; that is, there can be one, two, or more connecting plates, which can be flexibly arranged according to actual needs.

[0041] In some technical solutions, the connecting plate may optionally be connected to the first cover plate; or the connecting plate may be connected to the second cover plate.

[0042] In this technical solution, the connecting plate is only connected to one of the two cover plates. The assembly sequence of the linkage structure is as follows: First, the first main stiffening plate and the second main stiffening plate are connected by the connecting plate to fix their relative positions; second, one of the two cover plates is installed and connected to the connecting plate; then, the other of the two cover plates is installed; finally, the two bent plates (the first bent plate and the second bent plate) are installed so that the first main stiffening plate, the second main stiffening plate, the first cover plate, the second cover plate, the first bent plate, and the second bent plate form a box structure.

[0043] In some technical solutions, the housing structure is optionally provided with a pin hole.

[0044] In this technical solution, by setting a pin hole, it is easy for workers to pass the pin through the pin hole so that the connecting structure can be rotatably connected to the shield beam or base.

[0045] Typically, there are two pin holes, located at opposite ends of the housing structure. Optionally, the hydraulic support includes a first pin and a second pin. The first pin passes through one of the pin holes and the protective beam, rotatably connecting the linkage structure to the protective beam. The second pin passes through the other pin hole and the base, rotatably connecting the linkage structure to the base.

[0046] Optionally, the pin hole is located between the first bending plate and the second bending plate to reduce the possibility of the first pin or the second pin detaching from the connecting rod structure.

[0047] In some technical solutions, optionally, a first reinforcing plate is provided on at least one side of the first main stiffening plate; and / or a second reinforcing plate is provided on at least one side of the second main stiffening plate.

[0048] In this technical solution, by setting a first reinforcing plate, the structure can be strengthened, which is beneficial to improving the structural strength of the connecting rod structure.

[0049] Optionally, the first reinforcing plate is disposed on the side of the first main stiffening plate facing the second main stiffening plate. It should be noted that the number of first reinforcing plates is at least one, that is, there can be one, two or more first reinforcing plates, and the first reinforcing plates can be flexibly set according to actual needs.

[0050] By setting a second reinforcing plate, the structure can be strengthened, which helps to improve the structural strength of the linkage structure.

[0051] Optionally, the second reinforcing plate is disposed on the side of the second main stiffening plate facing the first main stiffening plate. It should be noted that the number of second reinforcing plates is at least one, that is, there can be one, two or more second reinforcing plates, and the second reinforcing plates can be flexibly set according to actual needs.

[0052] Optionally, the pin hole is provided in the first main stiffener plate, the first reinforcing plate, the second reinforcing plate, and the second main stiffener plate.

[0053] A second aspect of the present invention provides a hydraulic support, comprising: a top beam; a shield beam rotatably connected to the top beam; a base; and a linkage structure as described in any of the above technical solutions, wherein the linkage structure is rotatably connected to the shield beam and rotatably connected to the base.

[0054] According to the technical solution of the hydraulic support of the present invention, the hydraulic support includes a top beam, a protective beam, a base, and a connecting rod structure as described in any of the above technical solutions. The protective beam is rotatably connected to the top beam, and the protective beam and the top beam are capable of relative rotation. The connecting rod structure connects the protective beam and the base. The connecting rod structure is rotatably connected to the protective beam, and the connecting rod structure and the protective beam are capable of relative rotation. The connecting rod structure is rotatably connected to the base, and the connecting rod structure and the base are capable of relative rotation.

[0055] Optionally, each end of the linkage structure has a pin hole. Optionally, the hydraulic support includes a first pin and a second pin. The first pin passes through one of the pin holes and the shield beam, so that the linkage structure is rotatably connected to the shield beam. The second pin passes through the other pin hole and the base, so that the linkage structure is rotatably connected to the base.

[0056] Optionally, the hydraulic support also includes a column. One end of the column is rotatably connected to the top beam, and the other end is rotatably connected to the base. It should be noted that the column is a hydraulic cylinder.

[0057] Since the hydraulic support includes any of the linkage structures in the first aspect mentioned above, it has the beneficial effects of any of the above technical solutions, which will not be elaborated further here.

[0058] Additional aspects and advantages of the technical solutions of the present invention will become apparent in the following description or may be learned by practice of the invention. Attached Figure Description

[0059] Figure 1 This shows one of the schematic diagrams of a linkage structure in the related art;

[0060] Figure 2 This is the second schematic diagram of a linkage structure in the related technology;

[0061] Figure 3 One of the schematic diagrams of a linkage structure according to an embodiment of the present invention is shown;

[0062] Figure 4 A second schematic diagram of a linkage structure according to an embodiment of the present invention is shown;

[0063] Figure 5 A schematic diagram of a hydraulic support according to an embodiment of the present invention is shown.

[0064] in, Figure 1 and Figure 2 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0065] 100': Linkage structure; 110': Main stiffening plate; 120': Cover plate.

[0066] Figures 3 to 5The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0067] 100: Linkage structure; 111: First main stiffening plate; 112: Second main stiffening plate; 120: First cover plate; 121: First end; 122: Second end; 130: Second cover plate; 131: Third end; 132: Fourth end; 140: First bending plate; 141: First inner side; 150: Second bending plate; 151: Second inner side; 161: Connecting plate; 162: Pin hole; 171: First reinforcing plate; 172: Second reinforcing plate; 180: Box structure; 200: Hydraulic support; 210: Top beam; 220: Protective beam; 230: Base; 240: Column; a: First direction. Detailed Implementation

[0068] To better understand the above-described objectives, features, and advantages of the embodiments of the present invention, the embodiments of 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 of the present invention and the features thereof can be combined with each other.

[0069] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, embodiments of the invention may be implemented in other ways different from those described herein. Therefore, the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0070] The following reference Figures 3 to 5 The linkage structure 100 and hydraulic support 200 provided according to some embodiments of the present invention are described.

[0071] In one embodiment of the invention, such as Figure 3 and Figure 4 As shown, the connecting rod structure 100 includes a first main stiffening plate 111, a second main stiffening plate 112, a first cover plate 120, a second cover plate 130, a first bending plate 140, and a second bending plate 150. The first main stiffening plate 111 and the second main stiffening plate 112 are arranged opposite to each other. Optionally, there is a certain distance between the first main stiffening plate 111 and the second main stiffening plate 112, and the surfaces of the first main stiffening plate 111 and the second main stiffening plate 112 are parallel to each other.

[0072] It should be noted that there is at least one first main stiffening slab 111, meaning there can be one, two, or more first main stiffening slabs 111, which can be flexibly arranged according to actual needs. There is also at least one second main stiffening slab 112, meaning there can be one, two, or more second main stiffening slabs 112, which can be flexibly arranged according to actual needs. Typically, both the number of first main stiffening slabs 111 and the number of second main stiffening slabs 112 are one.

[0073] Furthermore, such as Figure 3 and Figure 4 As shown, a first cover plate 120 is disposed between the first main stiffening plate 111 and the second main stiffening plate 112, and the first cover plate 120 is used to connect the first main stiffening plate 111 and the second main stiffening plate 112. A second cover plate 130 is disposed opposite to the first cover plate 120. The second cover plate 130 is disposed between the first main stiffening plate 111 and the second main stiffening plate 112, and the second cover plate 130 is used to connect the first main stiffening plate 111 and the second main stiffening plate 112. Optionally, there is a certain gap between the first cover plate 120 and the second cover plate 130, and the surfaces of the first cover plate 120 and the second cover plate 130 are parallel to each other.

[0074] It should be noted that the number of first cover plates 120 is at least one; that is, there can be one, two, or more first cover plates 120, which can be flexibly set according to actual needs. The number of second cover plates 130 is also at least one; that is, there can be one, two, or more second cover plates 130, which can be flexibly set according to actual needs. Normally, both the number of first cover plates 120 and the number of second cover plates 130 are one.

[0075] Optionally, the first cover plate 120 and the first main stiffening plate 111 are fixed relative to each other by welding; the first cover plate 120 and the second main stiffening plate 112 are also fixed relative to each other by welding. Optionally, the first cover plate 120 has a welding bevel on the side facing the first main stiffening plate 111; the first cover plate 120 has a welding bevel on the side facing the second main stiffening plate 112. A welding bevel refers to the pre-machined form of the joint or end face of the component to be welded, such as an I-shaped structure, U-shaped structure, Y-shaped structure, or V-shaped structure. The purpose of setting a welding bevel is to improve the welding quality of the welded part.

[0076] Optionally, the second cover plate 130 is fixed to the first main stiffening plate 111 by welding; the second cover plate 130 is also fixed to the second main stiffening plate 112 by welding. Optionally, the second cover plate 130 has a welding bevel on the side facing the first main stiffening plate 111; the second cover plate 130 also has a welding bevel on the side facing the second main stiffening plate 112. The purpose of providing the welding bevel is to improve the welding quality of the welded parts.

[0077] Furthermore, such as Figure 3 and Figure 4As shown, a first bent plate 140 is disposed between a first main stiffening plate 111 and a second main stiffening plate 112. The first bent plate 140 is connected to a first cover plate 120 and a second cover plate 130. Further, a second bent plate 150 is disposed between the first main stiffening plate 111 and the second main stiffening plate 112. The second bent plate 150 is connected to the first cover plate 120 and a second cover plate 130.

[0078] Optionally, the first cover plate 120 is disposed between the first bending plate 140 and the second bending plate 150, and the second cover plate 130 is disposed between the first bending plate 140 and the second bending plate 150.

[0079] Optionally, the first bent plate 140 is connected to the side of the first cover plate 120 opposite to the side of the second cover plate 130, and the first bent plate 140 is also connected to the side of the second cover plate 130 opposite to the side of the first cover plate 120. Optionally, the second bent plate 150 is connected to the side of the first cover plate 120 opposite to the side of the second cover plate 130, and the second bent plate 150 is also connected to the side of the second cover plate 130 opposite to the side of the first cover plate 120.

[0080] Optionally, the first bending plate 140 and the first cover plate 120 are fixed to each other by welding; the first bending plate 140 and the second cover plate 130 are fixed to each other by welding; the second bending plate 150 and the first cover plate 120 are fixed to each other by welding; and the second bending plate 150 and the second cover plate 130 are fixed to each other by welding.

[0081] Optionally, the first bent plate 140 is a U-shaped plate. The surface of the first main stiffener plate 111 facing the second main stiffener plate 112 is taken as the first surface, and the inner contour of the projection of the first bent plate 140 on the first surface is the first arc, and the central angle corresponding to the first arc is 180 degrees.

[0082] Optionally, the second bent plate 150 is a U-shaped plate. The surface of the first main stiffener plate 111 facing the second main stiffener plate 112 is taken as the first surface, and the inner contour of the projection of the second bent plate 150 on the first surface is the second arc, and the central angle corresponding to the second arc is 180 degrees.

[0083] Optionally, such as Figure 3 As shown, the first main stiffening plate 111, the second main stiffening plate 112, the first cover plate 120, the second cover plate 130, the first bending plate 140, and the second bending plate 150 constitute the box structure 180. The box structure 180 has a cavity. This design can avoid material waste and ensure the structural performance of the connecting rod structure 100.

[0084] In the technical solution defined by this invention, by adding a first bending plate 140 and a second bending plate 150, and using the two bending plates to connect the first cover plate 120 and the second cover plate 130, this design eliminates the need to bend the ends of the first cover plate 120 and the second cover plate 130. Compared with the design in related technologies (bending the ends of the two cover plates and connecting them through line-to-line contact), the connections between the first bending plate 140 and the first cover plate 120, between the first bending plate 140 and the second cover plate 130, between the second bending plate 150 and the first cover plate 120, and between the second bending plate 150 and the second cover plate 130 are all made through surface-to-surface contact. This is beneficial for improving welding quality and connection strength, reducing assembly difficulty, increasing assembly efficiency, and reducing costs.

[0085] In some embodiments, optionally, such as Figure 3 As shown, the first cover plate 120 has a first end 121 and a second end 122 disposed opposite to each other along a first direction a. The first end 121 and the second end 122 are the two ends of the first cover plate 120 disposed opposite to each other along the first direction a. Optionally, the first direction a is the length direction of the connecting rod structure 100. One end of the first bent plate 140 is bent toward the first end 121, and the other end of the first bent plate 140 is bent toward the third end 131.

[0086] Since the two ends of the first bending plate 140 are bent toward the first cover plate 120 and the second cover plate 130 respectively, this design ensures that the first bending plate 140 is an arc-shaped structure. The first cover plate 120 and the second cover plate 130 are connected by the arc-shaped first bending plate 140, without needing to bend the ends of the first cover plate 120 and the second cover plate 130.

[0087] In some embodiments, optionally, such as Figure 3 As shown, the second cover plate 130 has a third end 131 and a fourth end 132 disposed opposite to each other along the first direction a. The third end 131 and the fourth end 132 are the two ends of the second cover plate 130 disposed opposite to each other along the first direction a. Optionally, the first direction a is the length direction of the connecting rod structure 100. One end of the second bent plate 150 is bent toward the second end 122, and the other end of the second bent plate 150 is bent toward the fourth end 132.

[0088] Since the two ends of the second bending plate 150 are bent toward the first cover plate 120 and the second cover plate 130 respectively, this design ensures that the second bending plate 150 is an arc-shaped structure. The first cover plate 120 and the second cover plate 130 are connected by the arc-shaped second bending plate 150, without the need to bend the ends of the first cover plate 120 and the second cover plate 130.

[0089] In some embodiments, optionally, such as Figure 3 As shown, the first bent plate 140 has a first inner side surface 141 facing the first cover plate 120 and the second cover plate 130. In other words, the side of the first bent plate 140 facing the first cover plate 120 and the second cover plate 130 is the first inner side surface 141. Optionally, the first bent plate 140 has an arc-shaped structure, and the first inner side surface 141 is an arc-shaped surface.

[0090] The first inner surface 141 is connected to the first cover plate 120, and the first inner surface 141 is connected to the second cover plate 130. Since the first inner surface 141 is connected to both cover plates (the first cover plate 120 and the second cover plate 130), this design ensures that the first bent plate 140 and the first cover plate 120, as well as the first bent plate 140 and the second cover plate 130, are connected through surface-to-surface contact, which is beneficial to improving welding quality and connection strength.

[0091] In some embodiments, optionally, such as Figure 3 As shown, the second bent plate 150 has a second inner side surface 151 facing the first cover plate 120 and the second cover plate 130. In other words, the side of the second bent plate 150 facing the first cover plate 120 and the second cover plate 130 is the second inner side surface 151. Optionally, the second bent plate 150 has an arc-shaped structure, and the second inner side surface 151 is an arc-shaped surface.

[0092] The second inner surface 151 is connected to the first cover plate 120, and the second inner surface 151 is connected to the second cover plate 130. Since the second inner surface 151 is connected to both cover plates (the first cover plate 120 and the second cover plate 130), this design ensures that the second bent plate 150 is connected to the first cover plate 120, and the second bent plate 150 is connected to the second cover plate 130 through surface-to-surface contact, which is beneficial to improving welding quality and connection strength.

[0093] In some embodiments, optionally, the first inner surface 141 is connected to the side of the first cover plate 120 opposite to the second cover plate 130, and the first inner surface 141 is connected to the side of the second cover plate 130 opposite to the first cover plate 120. This design ensures that the first bent plate 140 and the first cover plate 120, as well as the first bent plate 140 and the second cover plate 130, are connected through surface-to-surface contact, which helps to improve welding quality and connection strength.

[0094] In some embodiments, optionally, the second inner surface 151 is connected to the side of the first cover plate 120 opposite to the second cover plate 130, and the second inner surface 151 is connected to the side of the second cover plate 130 opposite to the first cover plate 120. This design ensures that the first bent plate 140 and the first cover plate 120, as well as the first bent plate 140 and the second cover plate 130, are connected through surface-to-surface contact, which helps to improve welding quality and connection strength.

[0095] In some embodiments, optionally, such as Figure 3 As shown, the linkage structure 100 also includes at least one connecting plate 161. Specifically, the connecting plate 161 is disposed between the first main stiffening plate 111 and the second main stiffening plate 112. The connecting plate 161 is disposed between the first cover plate 120 and the second cover plate 130. The connecting plate 161 is disposed between the first bending plate 140 and the second bending plate 150. The connecting plate 161 is used to connect the first main stiffening plate 111 and the second main stiffening plate 112.

[0096] Before the workers install the first cover plate 120 and the second cover plate 130, the relative positions of the first main stiffening plate 111 and the second main stiffening plate 112 are fixed by the connecting plate 161, so that there is a preset gap between the first main stiffening plate 111 and the second main stiffening plate 112, which facilitates the welding of the two cover plates in subsequent work, helps to improve the welding quality, and thus improves the connection strength between the two cover plates and the two main stiffening plates.

[0097] It should be emphasized that the connecting plate 161, also known as the transverse stiffener plate, serves two purposes: firstly, it connects the first main stiffener plate 111 and the second main stiffener plate 112; secondly, it strengthens the structure, thereby improving the structural strength of the connecting rod structure 100. There is at least one connecting plate 161; that is, there can be one, two, or more connecting plates 161, which can be flexibly configured according to actual needs.

[0098] In some embodiments, the connecting plate 161 is optionally connected to the first cover plate 120; or the connecting plate 161 is connected to the second cover plate 130.

[0099] The connecting plate 161 is connected to only one of the two cover plates. The assembly sequence of the connecting rod structure 100 by the workers is as follows: First, the first main stiffening plate 111 and the second main stiffening plate 112 are connected by the connecting plate 161 to fix the relative position between the first main stiffening plate 111 and the second main stiffening plate 112; second, one of the two cover plates is installed and connected to the connecting plate 161; then, the other of the two cover plates is installed; finally, two bent plates (first bent plate 140 and second bent plate 150) are installed so that the first main stiffening plate 111, the second main stiffening plate 112, the first cover plate 120, the second cover plate 130, the first bent plate 140, and the second bent plate 150 form the box structure 180.

[0100] In some embodiments, optionally, such as Figure 3 As shown, the box structure 180 is provided with a pin hole 162. By providing the pin hole 162, it is convenient for the operator to pass the pin through the pin hole 162 so that the connecting structure can be rotatably connected to the shield beam 220 or the base 230.

[0101] Typically, there are two pin holes 162, and the two pin holes 162 are respectively located at both ends of the housing structure 180. Optionally, the hydraulic support 200 includes a first pin and a second pin. The first pin passes through one of the pin holes 162 and the shield beam 220, so that the connecting rod structure 100 is rotatably connected to the shield beam 220. The second pin passes through the other pin hole 162 and the base 230, so that the connecting rod structure 100 is rotatably connected to the base 230.

[0102] Optionally, the pin hole 162 is provided between the first bending plate 140 and the second bending plate 150 to reduce the possibility of the first pin or the second pin disengaging from the connecting rod structure 100.

[0103] In some embodiments, optionally, such as Figure 4 As shown, at least one side of the first main stiffening plate 111 is provided with a first reinforcing plate 171. By providing the first reinforcing plate 171, the structure can be strengthened, which is beneficial to improving the structural strength of the connecting rod structure 100.

[0104] Optionally, the first reinforcing plate 171 is disposed on the side of the first main stiffening plate 111 facing the second main stiffening plate 112. It should be noted that the number of first reinforcing plates 171 is at least one, that is, there can be one, two or more first reinforcing plates 171, and the first reinforcing plates 171 can be flexibly set according to actual needs.

[0105] In some embodiments, optionally, such as Figure 4As shown, at least one side of the second main stiffening plate 112 is provided with a second reinforcing plate 172. By providing the second reinforcing plate 172, the structure can be strengthened, which is beneficial to improving the structural strength of the connecting rod structure 100.

[0106] Optionally, the second reinforcing plate 172 is disposed on the side of the second main stiffening plate 112 facing the first main stiffening plate 111. It should be noted that the number of second reinforcing plates 172 is at least one, that is, there can be one, two or more second reinforcing plates 172, and the second reinforcing plates 172 can be flexibly set according to actual needs.

[0107] Optionally, the pin hole 162 is provided in the first main stiffener plate 111, the first reinforcing plate 171, the second reinforcing plate 172 and the second main stiffener plate 112.

[0108] In one embodiment of the invention, such as Figure 5 As shown, the hydraulic support 200 includes a top beam 210, a shield beam 220, a base 230, and a connecting rod structure 100 as described in any of the above embodiments. The shield beam 220 is rotatably connected to the top beam 210, and the shield beam 220 and the top beam 210 are capable of relative rotation. The connecting rod structure 100 connects the shield beam 220 and the base 230. The connecting rod structure 100 is rotatably connected to the shield beam 220, and the connecting rod structure 100 is rotatably connected to the base 230, and the connecting rod structure 100 is capable of relative rotation.

[0109] Optionally, the connecting rod structure 100 has a pin hole 162 at each end. Optionally, the hydraulic support 200 includes a first pin and a second pin. The first pin passes through one of the pin holes 162 and the shield beam 220, so that the connecting rod structure 100 is rotatably connected to the shield beam 220. The second pin passes through the other pin hole 162 and the base 230, so that the connecting rod structure 100 is rotatably connected to the base 230.

[0110] Optionally, such as Figure 5 As shown, the hydraulic support 200 also includes a column 240. One end of the column 240 is rotatably connected to the top beam 210, and the other end of the column 240 is rotatably connected to the base 230. It should be noted that the column 240 is a hydraulic cylinder.

[0111] In this invention, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "link" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0112] In the description of this invention, it should be understood that the terms "upper," "lower," "left," "right," "front," "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0113] In the description of this specification, 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 present invention. 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.

[0114] 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 linkage structure, characterized in that, include: First main stiffener plate (111); The second main stiffening plate (112) is arranged opposite to the first main stiffening plate (111); A first cover plate (120) is disposed between the first main stiffening plate (111) and the second main stiffening plate (112), and the first cover plate (120) is used to connect the first main stiffening plate (111) and the second main stiffening plate (112). The second cover plate (130) is disposed opposite to the first cover plate (120). The second cover plate (130) is disposed between the first main stiffening plate (111) and the second main stiffening plate (112). The second cover plate (130) is used to connect the first main stiffening plate (111) and the second main stiffening plate (112). The first bending plate (140) is disposed between the first main stiffening plate (111) and the second main stiffening plate (112). The first bending plate (140) is connected to the first cover plate (120) and the first bending plate (140) is connected to the second cover plate (130). The second bending plate (150) is disposed between the first main stiffening plate (111) and the second main stiffening plate (112). The second bending plate (150) is connected to the first cover plate (120) and the second bending plate (150) is connected to the second cover plate (130). The first cover plate (120) is located between the first bent plate (140) and the second bent plate (150), and the second cover plate (130) is located between the first bent plate (140) and the second bent plate (150). The first main stiffening plate (111), the second main stiffening plate (112), the first cover plate (120), the second cover plate (130), the first bent plate (140), and the second bent plate (150) together form a box structure (180).

2. The linkage structure according to claim 1, characterized in that, The first cover plate (120) has a first end (121) and a second end (122) disposed opposite to each other along the first direction, and the second cover plate (130) has a third end (131) and a fourth end (132) disposed opposite to each other along the first direction; One end of the first bending plate (140) is bent toward the first end (121), and the other end of the first bending plate (140) is bent toward the third end (131); and / or One end of the second bending plate (150) is bent toward the second end (122), and the other end of the second bending plate (150) is bent toward the fourth end (132).

3. The linkage structure according to claim 1, characterized in that, The first bent plate (140) has a first inner side surface (141) facing the first cover plate (120) and the second cover plate (130), the first inner side surface (141) being connected to the first cover plate (120) and the second cover plate (130); and / or The second bent plate (150) has a second inner side (151) facing the first cover plate (120) and the second cover plate (130), the second inner side (151) being connected to the first cover plate (120) and the second cover plate (130).

4. The linkage structure according to claim 3, characterized in that, The first inner side (141) is connected to the side of the first cover plate (120) opposite to the second cover plate (130), and the first inner side (141) is connected to the side of the second cover plate (130) opposite to the first cover plate (120).

5. The linkage structure according to claim 3, characterized in that, The second inner side (151) is connected to the side of the first cover plate (120) opposite to the second cover plate (130), and the second inner side (151) is connected to the side of the second cover plate (130) opposite to the first cover plate (120).

6. The linkage structure according to any one of claims 1 to 5, characterized in that, Also includes: At least one connecting plate (161) is provided between the first main stiffening plate (111) and the second main stiffening plate (112), between the first cover plate (120) and the second cover plate (130), between the first bending plate (140) and the second bending plate (150), and the connecting plate (161) is used to connect the first main stiffening plate (111) and the second main stiffening plate (112).

7. The linkage structure according to claim 6, characterized in that, The connecting plate (161) is connected to the first cover plate (120); or The connecting plate (161) is connected to the second cover plate (130).

8. The linkage structure according to any one of claims 1 to 5, characterized in that, The box structure (180) is provided with a pin hole (162).

9. The linkage structure according to any one of claims 1 to 5, characterized in that, The first main stiffening plate (111) is provided with a first reinforcing plate (171) on at least one side; and / or The second main stiffener plate (112) has a second reinforcing plate (172) on at least one side.

10. A hydraulic support, characterized in that, include: Top beam (210); The protective beam (220) is rotatably connected to the top beam (210); Base (230); The linkage structure as described in any one of claims 1 to 9, wherein the linkage structure is rotatably connected to the shield beam (220) and the linkage structure is rotatably connected to the base (230).

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