Connecting device, column cap and hydraulic support

Abstract

The utility model provides a connecting device, a column cap and a hydraulic support. The connecting device comprises a mounting seat, a connecting piece and a connecting piece, wherein a first through hole, a second through hole and a containing groove are formed in the mounting seat; the first through hole and the second through hole are both communicated with the accommodating groove; the stop block is arranged in the accommodating groove; the stop block is provided with an assembling groove, and the assembling groove and the second through hole are coaxially arranged. The first connecting piece is arranged in the first through hole in a penetrating mode, and one end of the first connecting piece and the side, provided with the assembling groove, of the stop block are oppositely arranged so as to abut against the stop block; the second connecting piece is arranged in the second through hole and the assembling groove in a penetrating mode. Through the arrangement of the stop block, when the first connecting piece moves under the action of axial force, one end of the first connecting piece can abut against the stop block, at the moment, the stop block is stressed, the second connecting piece is not stressed, and therefore the situation that the second connecting piece is bent, deformed or fractured and invalid due to stress can be avoided.

Description

Technical Field

[0001] This application relates to the field of hydraulic support technology, and more specifically, to a connecting device, a column cap, and a hydraulic support. Background Technology

[0002] Hydraulic supports are the main support equipment for fully mechanized coal mining faces. They support the working face by connecting the column head and the top beam through the column cap. The column head and the column cap are connected by a pin.

[0003] In related technologies, refer to Figures 1 to 3 The hydraulic support includes a column head 100', a column cap 200', a pin 300', a stop shaft 400', and a clamp 500'. Specifically, the pin 300' passes through the column cap 200' and is connected to the column head 100'; the stop shaft 400' is disposed on the pin 300', and the axis of the stop shaft 400' is not parallel to the axis of the pin 300'; the clamp 500' is disposed on the stop shaft 400' to restrict the axial movement of the stop shaft 400'.

[0004] However, during the operation of the hydraulic support, the pin 300' will bear axial force and act on the stop shaft 400'. Since the stop shaft 400' has a small diameter, it is easy to bend, deform or break, which will lead to failure of the connection structure and the risk of the column falling off or being unable to be removed. Utility Model Content

[0005] This application aims to address at least one of the technical problems existing in the related art.

[0006] Therefore, the first aspect of this application is to provide a connecting device.

[0007] The second aspect of this application is to propose a column cap.

[0008] The third aspect of this application is to propose a hydraulic support.

[0009] In view of the above, according to the first aspect of this application, a connecting device is proposed, comprising: a mounting base having a first through hole, a second through hole, and a receiving groove; both the first through hole and the second through hole communicating with the receiving groove; a stop block disposed in the receiving groove; the stop block having an assembly groove, the assembly groove and the second through hole being coaxially arranged; a first connecting member passing through the first through hole, one end of the first connecting member being disposed opposite to the side of the stop block having the assembly groove, so as to abut against the stop block; and a second connecting member passing through the second through hole and the assembly groove.

[0010] In the above technical solution, by setting a stop block, when the first connecting member is subjected to axial force and moves, one end of the first connecting member will abut against the stop block. At this time, the stop block is subjected to force, while the second connecting member is not subjected to force, thereby preventing the second connecting member from bending, deforming or breaking under force.

[0011] In some technical solutions, optionally, a limiting groove is provided on the opposite side of the first connecting member and the stop block.

[0012] During installation, the limiting groove abuts against the installation tool, making it easier for the first connector to be inserted into the first through hole; this not only reduces the difficulty of the installation process but also increases the installation speed.

[0013] In some technical solutions, the connecting device may optionally include a limiting member; the limiting member is disposed on the second connecting member to restrict the axial movement of the second connecting member.

[0014] By limiting the axial movement of the second connector, the second connector is ensured to maintain a stable position during installation and use, preventing it from moving unnecessarily due to force or vibration and thus dislodging. This effectively enhances the stability and reliability of the entire connection device.

[0015] In some technical solutions, the limiting member can optionally be a D-shaped clip; wherein the second connecting member is provided with a fixing hole; the D-shaped clip extends at least partially into the fixing hole.

[0016] During operation, the second connector may move axially due to force or vibration. By setting a D-shaped clip, the axial movement of the second connector can be restricted, thereby preventing the second connector from coming off and effectively enhancing the stability and reliability of the entire connection device.

[0017] In some technical solutions, optionally, there is a gap between the stop block and the first connecting member.

[0018] During manufacturing and assembly, there will always be certain dimensional tolerances between components. The existence of clearances can accommodate these tolerances, allowing for smooth assembly and normal operation even if the dimensions of the stop block and the first connecting piece change slightly. At the same time, the existence of clearances also allows the first connecting piece to have some buffer space when subjected to axial forces. Finally, if it is necessary to replace or adjust the stop block, the existence of clearances provides sufficient operating space, facilitating subsequent maintenance and adjustment work.

[0019] In some technical solutions, optionally, the axial direction of the first through hole and the axial direction of the second through hole are not parallel.

[0020] This prevents the second connector from moving due to axial force, thus helping to enhance the stability and reliability of the connection device.

[0021] According to a second aspect of this application, a cap is provided, comprising: a cap body; two connecting devices as proposed in the first aspect of this application; the two connecting devices are symmetrically arranged on the cap body.

[0022] Specifically, the column cap has the connecting device proposed in any of the above technical solutions, and thus the column cap has all the beneficial effects of any of the above technical solutions, which will not be repeated here.

[0023] In some technical solutions, optionally, the cap body is provided with a recess; two connecting devices are located on both sides of the recess.

[0024] By setting the recess, the movement range of the column can be constrained during use, so that the column will not completely detach from the cap.

[0025] According to a third aspect of this application, a hydraulic support is provided, comprising: a column, wherein mounting holes are provided on both opposite sides of the column; a column cap as provided in the second aspect of this application; wherein a first connecting member extends into the mounting hole through a first through hole.

[0026] Specifically, the hydraulic support has the column cap proposed in any of the above technical solutions, and thus the hydraulic support has all the beneficial effects of any of the above technical solutions, which will not be elaborated here.

[0027] In some technical solutions, optionally, the opposite side of the column and the cap is curved.

[0028] By setting an arc-shaped surface, a guiding function can be provided, making the movement process smoother.

[0029] Additional aspects and advantages of this application will become apparent in the following description or may be learned by practice of this application. Attached Figure Description

[0030] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0031] Figure 1 One of the structural schematic diagrams of a hydraulic support in the related art is shown;

[0032] Figure 2 The second schematic diagram of the structure of a hydraulic support in the related technology is shown;

[0033] Figure 3 It shows Figure 2 A schematic diagram of the cross-sectional structure along the BB section line;

[0034] Figure 4 One of the structural schematic diagrams of the column cap in an embodiment of this application is shown;

[0035] Figure 5 A second schematic diagram of the column cap structure in an embodiment of this application is shown;

[0036] Figure 6 It shows Figure 5 A schematic diagram of the cross-sectional structure along the CC section line;

[0037] Figure 7 One of the structural schematic diagrams of the first connector in an embodiment of this application is shown;

[0038] Figure 8 A second schematic diagram of the structure of the first connector in an embodiment of this application is shown;

[0039] Figure 9 One of the structural schematic diagrams of the column in an embodiment of this application is shown;

[0040] Figure 10 A second schematic diagram of the column structure in an embodiment of this application is shown;

[0041] Figure 11 The third schematic diagram of the column structure in the embodiments of this application is shown;

[0042] Figure 12 One of the structural schematic diagrams of the stop block in an embodiment of this application is shown;

[0043] Figure 13 A second schematic diagram of the stop block in an embodiment of this application is shown;

[0044] Figure 14 The third schematic diagram of the stop block in an embodiment of this application is shown;

[0045] Figure 15 One of the structural schematic diagrams of the second connector in an embodiment of this application is shown;

[0046] Figure 16 A second schematic diagram of the structure of the second connector in an embodiment of this application is shown;

[0047] Figure 17 A schematic diagram of the limiting member in an embodiment of this application is shown;

[0048] Figure 18 The third schematic diagram of the column cap in an embodiment of this application is shown;

[0049] Figure 19 One of the structural schematic diagrams of the hydraulic support in an embodiment of this application is shown;

[0050] Figure 20A second schematic diagram of the structure of the hydraulic support in an embodiment of this application is shown;

[0051] Figure 21 The third schematic diagram of the hydraulic support structure in the embodiments of this application is shown;

[0052] Figure 22 The fourth schematic diagram of the hydraulic support structure in the embodiments of this application is shown.

[0053] in, Figure 1 , Figure 2 and Figure 3 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0054] 100' column head; 200' column cap; 300' pin; 400' stop pin; 500' clip.

[0055] Figures 4 to 22 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0056] 100 Connecting device; 110 Mounting base; 111 First through hole; 112 Second through hole; 113 Receiving groove; 120 Stop block; 121 Assembly groove; 130 First connecting piece; 131 Limiting groove; 140 Second connecting piece; 141 Fixing hole; 150 Limiting piece.

[0057] 200 column cap; 210 cap body; 211 concave part.

[0058] 300 hydraulic support; 310 column; 311 mounting hole. Detailed Implementation

[0059] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0060] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0061] The following is combined with Figures 4 to 22 The connection device, column cap, and hydraulic support provided in this application will be described in detail through specific embodiments and application scenarios.

[0062] Reference Figures 4 to 22The embodiments of this application provide a connecting device 100, the structure of which includes a mounting base 110, a stop block 120, a first connecting member 130 and a second connecting member 140.

[0063] Reference Figure 4 , Figure 5 and Figure 6 Specifically, the mounting base 110 is provided with a first through hole 111, a second through hole 112 and a receiving groove 113; both the first through hole 111 and the second through hole 112 are connected to the receiving groove 113.

[0064] Reference Figure 6 , Figure 12 , Figure 13 , Figure 14 and Figure 19 The stop block 120 is disposed in the receiving groove 113, and the stop block 120 is provided with an assembly groove 121. The assembly groove 121 and the second through hole 112 are coaxially arranged.

[0065] The first connector 130 is inserted into the first through hole 111. One end of the first connector 130 and the side of the stop block 120 with the mounting groove 121 are arranged opposite to each other to abut against the stop block 120.

[0066] Reference Figure 6 and Figure 20 The second connector 140 passes through the second through hole 112 and the assembly groove 121 so that the stop block 120 is fixed in the receiving groove 113.

[0067] In the above embodiment, by providing a stop block 120, when the first connecting member 130 is subjected to an axial force ( Figure 4 When the force in the X direction moves, one end of the first connector 130 will abut against the stop block 120. At this time, the stop block 120 is under force, while the second connector 140 is not under force, thereby preventing the second connector 140 from bending, deforming or breaking under force.

[0068] In practical applications, the stop block 120 is either a casting or a machined part.

[0069] Reference Figure 7 and Figure 8 In some embodiments, a limiting groove 131 is provided on the opposite side of the first connector 130 and the stop block 120.

[0070] During installation, the limiting groove 131 abuts against the installation tool, making it easier for the first connector 130 to be inserted into the first through hole 111; this not only reduces the difficulty of the installation process but also increases the installation speed.

[0071] Reference Figure 15 , Figure 16 , Figure 17 and Figure 22 In some embodiments, the connecting device 100 further includes a limiting member 150, which is disposed on the second connecting member 140 to limit the axial movement of the second connecting member 140. Figure 4 (Movement in the Y direction).

[0072] In the above embodiment, after the second connector 140 is installed, the position of the stop block 120 can be fixed so that the stop block 120 is fixed in the receiving groove 113; then, the axial movement of the second connector 140 is restricted by the limiting member 150 to ensure that the second connector 140 maintains a stable position during installation and use, and prevents it from moving out due to force or vibration. In this way, the stability and reliability of the entire connecting device 100 are effectively enhanced.

[0073] In practical applications, the limiting member 150 is a D-shaped clip. The second connecting member 140 is provided with a fixing hole 141; the D-shaped clip extends at least partially into the fixing hole 141.

[0074] Specifically, the straight section of the D-shaped clip is inserted into the fixing hole 141 at the end of the second connector 140. During operation, the second connector 140 may move axially due to force or vibration. By setting the D-shaped clip, the axial movement of the second connector 140 can be restricted, thereby preventing the second connector 140 from coming out and effectively enhancing the stability and reliability of the entire connecting device 100.

[0075] In some embodiments, there is a gap between the stop block 120 and the first connector 130.

[0076] During manufacturing and assembly, there will always be certain dimensional tolerances between components. The existence of gaps can accommodate these tolerances, allowing for smooth assembly and normal operation even if the dimensions of the stop block 120 and the first connecting member 130 are slightly different. At the same time, the existence of gaps also allows the first connecting member 130 to have a certain buffer space when subjected to axial force. Finally, if it is necessary to replace or adjust the stop block 120, the existence of gaps provides sufficient operating space, facilitating subsequent maintenance and adjustment work.

[0077] Reference Figure 6 In some embodiments, the axial direction of the first through hole 111 is ( Figure 4 (in the X direction) and the axial direction of the second through hole 112 Figure 4 The first through hole 111 and the second through hole 112 are not parallel in the Y direction. Furthermore, the axes of the first through hole 111 and the second through hole 112 are perpendicular to each other. This prevents the second connector 140 from being subjected to forces in its axial direction. Figure 4 The force in the Y direction moves the device, thereby helping to enhance the stability and reliability of the connecting device 100.

[0078] Reference Figure 4 In some embodiments, this application also proposes a column cap 200, the structure of which includes a cap body 210 and two connecting devices 100 as described in any of the above embodiments; wherein the two connecting devices 100 are symmetrically arranged on the cap body 210. Thus, the column cap 200 has all the beneficial effects of any of the above embodiments, which will not be repeated here.

[0079] In the above embodiment, the cap body 210 is provided with a recess 211. Two connecting devices 100 are respectively located on both sides of the recess 211.

[0080] By setting the recess 211, the movement range of the column can be constrained during use, so that the column will not completely detach from the cap 210.

[0081] Reference Figure 9 , Figure 10 , Figure 11 and Figure 22 In some embodiments, this application also proposes a hydraulic support 300, which includes a column 310 and a column cap 200 as described in any of the above embodiments; wherein, mounting holes 311 are provided on both opposite sides of the column 310; a first connecting member 130 extends into the mounting holes 311 through a first through hole 111 to connect the column cap 200 and the column 310. Thus, the hydraulic support 300 has all the beneficial effects of any of the above embodiments, which will not be repeated here.

[0082] In the above embodiment, the opposite side of the column 310 and the cap 210 is arc-shaped. Correspondingly, the inner wall of the recess 211 is also arc-shaped.

[0083] By setting an arc-shaped surface, a guiding function can be provided, making the movement process smoother.

[0084] Reference Figures 18 to 22 The installation process of the hydraulic support 300 of this application will be described in detail below.

[0085] Reference Figure 18 Insert the first connector 120 into the first through hole 111, and position the limiting groove 131 within the receiving groove 113. Install the column 310 onto the recess 211 on the cap 210, aligning the mounting hole 311 with the first through hole 111. (Refer to...) Figure 19 Using a tool, press against the limiting groove 131 and push the first connecting piece 120 towards the column 310 and insert it into the mounting hole 311, so that the column 310 and the column cap 200 are connected as one unit; it should be noted that there is a gap between the end of the first connecting piece 120 away from the column 310 and the cross-section of the receiving groove 113. (Refer to...) Figure 20The stop block 120 is installed in the receiving groove 113, and the assembly groove 121 and the second through hole 112 are coaxial. (Refer to...) Figure 21 and Figure 22 Install the second connector 140 and the limiting component 150.

[0086] As can be seen from the above description, this application has the following beneficial effects:

[0087] 1. When the first connector 130 is subjected to force, the stop block 120 is subjected to force, while the second connector 140 is not subjected to force, thereby preventing the second connector 140 from bending, deforming or breaking under force.

[0088] 2. The first connector 130 is provided with a limiting groove 131 to facilitate installation.

[0089] It should be clarified that in the claims, description, and accompanying drawings of this application, the term "multiple" refers to two or more objects. Unless otherwise explicitly defined, the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description process, not to indicate or imply that the device or element referred to must have the described specific orientation, or be constructed and operated in a specific orientation. Therefore, these descriptions should not be construed as limitations on this application. The terms "connection," "installation," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection between multiple objects, a detachable connection between multiple objects, or an integral connection; it can be a direct connection between multiple objects or an indirect connection between multiple objects through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this application can be understood based on the specific circumstances of the above data.

[0090] In the claims, description, and accompanying drawings of this application, 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 this application. In the claims, description, and accompanying drawings of this application, 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.

[0091] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A connecting device, characterized in that, include: The mounting base has a first through hole, a second through hole, and a receiving groove; both the first through hole and the second through hole communicate with the receiving groove. A stop block is disposed within the receiving groove; the stop block is provided with an assembly groove, and the assembly groove and the second through hole are coaxially disposed. A first connector is inserted into the first through hole. One end of the first connector is disposed opposite to the side of the stop block where the assembly groove is provided, so as to abut against the stop block. The second connector passes through the second through hole and the assembly groove.

2. The connecting device according to claim 1, characterized in that, The first connector and the stop block are provided with a limiting groove on the opposite side.

3. The connecting device according to claim 1, characterized in that, The connecting device further includes a limiting member; the limiting member is disposed on the second connecting member to restrict the axial movement of the second connecting member.

4. The connecting device according to claim 3, characterized in that, The limiting member is a D-shaped clip; wherein, the second connecting member is provided with a fixing hole; the D-shaped clip extends at least partially into the fixing hole.

5. The connecting device according to claim 1, characterized in that, There is a gap between the stop block and the first connecting member.

6. The connecting device according to any one of claims 1 to 5, characterized in that, The axial direction of the first through hole is not parallel to the axial direction of the second through hole.

7. A column cap, characterized in that, include: hat body; Two connecting devices as described in any one of claims 1 to 6; The two connecting devices are symmetrically arranged on the cap body.

8. The column cap according to claim 7, characterized in that, The cap body has a recess; the two connecting devices are located on both sides of the recess.

9. A hydraulic support, characterized in that, include: The column has mounting holes on both opposite sides; The column cap as described in claim 7 or 8; The first connector extends into the mounting hole through the first through hole.

10. The hydraulic support according to claim 9, characterized in that, The opposite side of the column and the cap is arc-shaped.

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