Hydraulic support with adjusting function

Abstract

The utility model discloses a hydraulic support with an adjusting function, which comprises a top beam, one end of the top beam is connected with a shield beam, the shield beam is connected with a base through a front connecting rod and a rear connecting rod, a stand column is arranged between the base and the top beam, and an adjusting mechanism is arranged in the rear connecting rod. The adjusting mechanism can stretch out and draw back in the lateral direction of the rear connecting rod, the adjusting mechanism can abut against the side portion of the rear connecting rod of the adjacent hydraulic support to achieve posture adjustment in the stretching-out process, and the technical problems that in the prior art, a hydraulic support is prone to tail swinging, and the tail swinging problem cannot be effectively solved due to the fact that an existing adjusting structure is located at the lower rear portion are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of mining machinery, and in particular relates to a hydraulic support with an adjustment function. Background Art

[0002] In the fully-mechanized mining face under the conditions of large-angle and steep-inclined coal seams, the coal mining equipment will encounter a series of posture control problems such as sliding, tipping, tail swinging, and flipping. In particular, the hydraulic support, as a safety support and protection equipment for the coal mining face, has an extremely important posture control requirement. The national standard requires that when the coal seam inclination is greater than 15°, an anti-falling and anti-skid device must be installed; the existing anti-falling devices are mainly horizontal pull type and inclined pull type, but these devices cannot effectively solve the problem of the support tail swinging. To address this problem, in the prior art, for example, in the Chinese patent document disclosed by the applicant of this patent in publication number CN103742180A, a fully-mechanized hydraulic support adjustment device is provided, in which an adjustment device is provided in the top beam, shield beam, and base of the support. Specifically, on the basis of the side guard plates on both sides of the top beam and shield beam of the original support and the bottom adjustment beam on both sides of the base to prevent falling and skidding, an adjustment jack and a guide shaft are added to make up for the insufficient use of the side guard plates and the bottom adjustment beam.

[0003] However, the aforementioned adjustment device is not effective in addressing the tail swing problem. The inventors of this application discovered that when a fully-mechanized hydraulic support is used in a high-angle working face, the weight of the support causes it to slide and tilt laterally along the inclination direction of the coal seam. This is especially true when the working face encounters geological structures or when mining in a pseudo-inclined manner. A large amount of waste rock accumulates at the rear connecting rod of the support, making the support extremely susceptible to tail swing. Furthermore, the center of gravity of the support structure is generally located at the lower rear. The existing technology, through the addition of auxiliary measures to the top beam, shield beam, and base, does not adjust the position of the center of gravity in accordance with the actual position that needs to be adjusted, resulting in ineffective results. Utility Model Content

[0004] The purpose of the utility model is to provide a hydraulic support with an adjustment function to solve the technical problem that the hydraulic support in the above-mentioned prior art is prone to tail swinging and the existing adjustment structure is located at the lower rear and cannot effectively solve the tail swinging problem.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A hydraulic support with an adjustment function includes: a top beam, one end of which is connected to a shield beam, the shield beam is connected to a base via a front link and a rear link, a column is provided between the base and the top beam, and an adjustment mechanism is provided inside the rear link. The adjustment mechanism is capable of extending and retracting laterally along the rear link, and during the extension process of the adjustment mechanism, the side of the rear link of the adjacent hydraulic support can be pressed against to achieve posture adjustment.

[0007] The utility model provides a hydraulic support with an adjustment function, wherein the rear link comprises a first rear link and a second rear link, the middle parts of the first rear link and the second rear link are connected as a whole by a box structure, the middle parts of the first rear link and the second rear link respectively have a first mounting hole and a second mounting hole penetrating along the width direction, the adjustment mechanism comprises a telescopic power device and a guide shaft, the telescopic power device and the guide shaft are respectively assembled in the first mounting hole and the second mounting hole, and the guide shaft is extended or retracted into the second mounting hole under the action of the telescopic power device.

[0008] The utility model provides a hydraulic support with an adjustment function. The output end of the telescopic power device is connected through a connecting lock shaft and a guide shaft.

[0009] The utility model discloses a hydraulic support with an adjustment function. A locking pin hole is provided on the upper surface of a first rear connecting rod at a position corresponding to the tail of the telescopic power device. A locking pin is passed through the locking pin hole. The bottom of the locking pin is inserted into the tail of the telescopic power device.

[0010] The utility model provides a hydraulic support with an adjustment function. The end of the first mounting hole is equipped with a plug. The upper surface of the first rear connecting rod corresponding to the position of the plug is penetrated by a locking lock, and the end of the locking lock is inserted into the plug.

[0011] The utility model provides a hydraulic support with an adjustment function. A connecting pin mounting hole is provided on a box structure corresponding to the position of the connecting lock shaft, and a detachable mounting cover is provided at the connecting pin mounting hole.

[0012] The utility model provides a hydraulic support with an adjustment function. A safety pin is provided on the upper surface of a second rear connecting rod corresponding to the end position of the guide shaft, and the end of the safety pin is inserted into the guide shaft.

[0013] The beneficial effects of the utility model are as follows: a hydraulic support with an adjustment function is proposed, in which an adjustment device is arranged in the middle of the rear connecting rod, so that the adjustment position and the center of gravity are closer to the tail, so that when the tail of the hydraulic support slides down and deflects under large inclination angle conditions, the hydraulic support can effectively adjust its own state and restore the original working state; by arranging a first mounting hole and a second mounting hole with the same structure, the position of the telescopic power device and the guide shaft can be replaced according to the current working conditions, thereby adapting to different inclination directions; by arranging a safety pin, the guide shaft can be prevented from moving during transportation and installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0015] Figure 1 It is a schematic diagram of an embodiment of the utility model;

[0016] Figure 2 This is an axonometric view of the rear connecting rod of an embodiment of the present utility model;

[0017] Figure 3 This is a schematic diagram of the separation of the adjustment mechanism of an embodiment of the utility model;

[0018] Figure 4 1 is a cross-sectional view of a rear connecting rod according to an embodiment of the present invention. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, rather than all the embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] like Figure 1-4 As shown, a hydraulic support with an adjustment function includes: a top beam 1, one end of the top beam 1 is connected to a shield beam 2, the shield beam 2 is connected to a base 5 through a front link 3 and a rear link 4, a column 6 is provided between the base 5 and the top beam 1, and an adjustment mechanism 7 is provided inside the rear link 4. The adjustment mechanism 7 can be extended and retracted laterally along the rear link 4. During the extension process of the adjustment mechanism 7, the side of the rear link 4 of the adjacent hydraulic support can be tightened to achieve posture adjustment.

[0021] It should be noted that the adjustment mechanism 7 is arranged at the middle or lower part of the rear link 4 in the height direction and in the middle part of the width direction, and its telescopic direction is set according to the tilt direction of the working condition.

[0022] In a preferred embodiment of the present utility model, the rear link 4 includes a first rear link 41 and a second rear link 42, and the middle parts of the first rear link 41 and the second rear link 42 are connected as a whole by a box structure 49, and the middle parts of the first rear link 41 and the second rear link 42 respectively have a first mounting hole 411 and a second mounting hole 421 penetrating along the width direction, and the adjustment mechanism 7 includes a telescopic power device 71 and a guide shaft 72, and the telescopic power device 71 and the guide shaft 72 are respectively assembled in the first mounting hole 411 and the second mounting hole 421, and the guide shaft 72 is extended or retracted into the second mounting hole 421 under the action of the telescopic power device 71.

[0023] In a preferred embodiment of the present invention, the output end of the telescopic power device 71 is connected to the guide shaft 72 via a connecting lock shaft 73 .

[0024] It should be noted that the first mounting hole 411 and the second mounting hole 421 have the same shape and size. According to the working conditions of the hydraulic support installation, the positions of the telescopic power device 71 and the guide shaft 72 can be swapped to achieve adjustment of the telescopic direction.

[0025] In a preferred embodiment of the present invention, a locking pin hole 45 is provided on the upper surface of the first rear link 41 at a position corresponding to the tail of the telescopic power device 71, and a locking pin 451 is passed through the locking pin hole 45, and the bottom of the locking pin 451 is inserted into the tail of the telescopic power device 71.

[0026] It should be noted that a similar hole is also provided at an axially symmetrical position of the locking pin hole 45 . If the hole corresponds to the position of the guide shaft 72 , a dustproof plug is installed thereon.

[0027] In a preferred embodiment of the present invention, a plug 47 is installed at the end of the first mounting hole 411 , and a locking lock 46 is penetrated through the upper surface of the first rear connecting rod 41 at a position corresponding to the plug 47 , and the end of the locking lock 46 is inserted into the plug 47 .

[0028] In a preferred embodiment of the present invention, a connecting pin mounting hole 43 is provided on the box structure 49 at a position corresponding to the connecting lock shaft 73 , and a detachable mounting cover 431 is provided at the connecting pin mounting hole 43 .

[0029] In a preferred embodiment of the present invention, a safety pin 48 is provided on the upper surface of the second rear link 42 at a position corresponding to the end of the guide shaft 72 , and the end of the safety pin 48 is inserted into the guide shaft 72 .

[0030] It should be noted that the positions of the locking lock 46 and the safety pin 48 are symmetrically arranged so that they can be interchanged when installed in different telescopic directions.

[0031] In the description of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified or limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0033] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to this utility model.

Claims

1. A hydraulic support with adjustment function, characterized in that: include: A top beam (1), one end of the top beam (1) is connected to a shield beam (2), the shield beam (2) is connected to a base (5) via a front connecting rod (3) and a rear connecting rod (4), a column (6) is provided between the base (5) and the top beam (1), an adjustment mechanism (7) is provided inside the rear connecting rod (4), the adjustment mechanism (7) is capable of extending and retracting along the side of the rear connecting rod (4), and when the adjustment mechanism (7) is extended, it can press against the side of the rear connecting rod (4) of the adjacent hydraulic support to achieve posture adjustment.

2. The hydraulic support with adjustment function according to claim 1, characterized in that: The rear link (4) comprises a first rear link (41) and a second rear link (42), wherein the middle portions of the first rear link (41) and the second rear link (42) are connected as a whole via a box structure (49), and the middle portions of the first rear link (41) and the second rear link (42) respectively have a first mounting hole (411) and a second mounting hole (421) penetrating along the width direction, and the adjustment mechanism (7) comprises a telescopic power device (71) and a guide shaft (72), wherein the telescopic power device (71) and the guide shaft (72) are respectively assembled in the first mounting hole (411) and the second mounting hole (421), and the guide shaft (72) extends or retracts into the second mounting hole (421) under the action of the telescopic power device (71).

3. The hydraulic support with adjustment function according to claim 2, characterized in that: The output end of the telescopic power device (71) is connected via a connecting lock shaft (73) and a guide shaft (72).

4. The hydraulic support with adjustment function according to claim 3, characterized in that: A locking pin hole (45) is provided through the upper surface of the first rear connecting rod (41) at a position corresponding to the tail of the telescopic power device (71), a locking pin (451) is passed through the locking pin hole (45), and the bottom of the locking pin (451) is inserted into the tail of the telescopic power device (71).

5. The hydraulic support with adjustment function according to claim 4, characterized in that: A plug (47) is mounted on the end of the first mounting hole (411), a locking lock (46) is provided on the upper surface of the first rear connecting rod (41) at a position corresponding to the plug (47), and an end of the locking lock (46) is inserted into the plug (47).

6. The hydraulic support with adjustment function according to claim 5, characterized in that: A connecting pin mounting hole (43) is provided on the box structure (49) at a position corresponding to the connecting lock shaft (73), and a detachable mounting cover plate (431) is provided at the connecting pin mounting hole (43).

7. The hydraulic support with adjustment function according to claim 6, characterized in that: A safety pin (48) is provided on the upper surface of the second rear link (42) at a position corresponding to the end of the guide shaft (72), and the end of the safety pin (48) is inserted into the guide shaft (72).

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