Fully mechanized coal mining face supporting device

Abstract

The utility model relates to the technical field of supporting devices, in particular to a fully mechanized coal mining face supporting device. According to the technical scheme, the device comprises a bottom plate and a threaded sleeve, a base is arranged in the middle of the outer top surface of the bottom plate, one end of the base is connected with a hydraulic cylinder, the top end of the hydraulic cylinder is connected with a support, the support is rotationally installed at the other end of the base, a first cavity is formed in the inner top end of the bottom plate, and a second cavity is formed in the inner bottom end of the bottom plate; and a screw sleeve is rotationally mounted between the second cavity and the first cavity. The liftable flat plate is arranged in the bottom plate, the universal wheels are mounted on the bottom surface of the flat plate, the universal wheels are lowered to be close to the ground to facilitate movement, the universal wheels are lifted to be hidden, the service life of the universal wheels is prolonged, and the flat plate is lifted and moved under transmission force output by a worker on the two bevel gears. The lifting structure is simple, is installed in the bottom plate and is not exposed, and damage is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of supporting devices, in particular to a fully mechanized mining working face supporting device. Background Art

[0002] The fully-mechanized mining face support device refers to the support measures that need to be taken to prevent accidents such as collapse and roof fall from the fully-mechanized mining face during coal mining operations in a coal mine, so as to ensure the safety and stability of the working face. These support measures are combined together to form the fully-mechanized mining face support device. The support device usually includes various support materials and equipment such as anchor rods, anchor nets, hydraulic supports, wooden strip supports, and steel frame supports.

[0003] The hydraulic supports used are usually made of steel and have hydraulic devices that can adjust the height and angle. The hydraulic supports are used to support the coal wall and roof to maintain the stability of the working surface. At the same time, the height and angle of the supports can also be adjusted to meet the needs of different working surfaces.

[0004] The hydraulic supports currently in use are heavy, difficult to move, and have poor adaptability. When moving, workers need to use a carrier such as a cart to push it, which is cumbersome and inconvenient for workers to use. Utility Model Content

[0005] The purpose of the utility model is to provide a fully mechanized mining working face supporting device to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a comprehensive mining working face support device, including a bottom plate and a screw sleeve, a base is provided in the middle of the outer top surface of the bottom plate, one end of the base is connected to a hydraulic cylinder, the top of the hydraulic cylinder is connected to a bracket, and the bracket is rotatably installed on the other end of the base, a first cavity is opened at the inner top end of the bottom plate, a second cavity is opened at the inner bottom end of the bottom plate, and a screw sleeve is rotatably installed between the second cavity and the first cavity.

[0007] When using a comprehensive mining working face support device in the technical solution, the staff needs to first move the utility model to the position to be used, and the staff holds the push handle to push the utility model to the position to be used. After arriving at the destination, the staff needs to retract the universal wheel into the second cavity opened in the bottom plate. The specific operation is that the staff presses the first telescopic rod to release the restriction on the turning handle. After the restriction is released, the staff holds the turning handle and rotates it. The rotational force applied to the turning handle will be synchronized to the transmission rod. After the transmission rod rotates, the first bevel gear fixed on its surface will rotate accordingly, and the first bevel gear rotates the second bevel gear on the meshing surface, and the second bevel gear drives the The screw sleeve rotates on the partition between the first cavity and the second cavity. After the screw sleeve rotates, the screw inserted inside it will telescope due to the engagement of the threads. The telescopic screw will pull the flat plate connected to the bottom end, so that the flat plate will rise in the second cavity. The universal wheel installed on the bottom surface of the flat plate will also rise synchronously, and then shrink and hide in the second cavity without contacting the ground. After the universal wheel is hidden and placed, its bottom plate will be directly attached to the ground. At this time, the staff will externally power the hydraulic system of the utility model, and the hydraulic system will control the operation of the hydraulic cylinder. The hydraulic cylinder will push the bracket and press it against the coal wall to complete the support operation.

[0008] Preferably, a screw is inserted into the screw sleeve, and a flat plate is connected to the bottom end of the screw, and the flat plate is arranged inside the second cavity. Through the cooperation between the screw sleeve and the screw, the flat plate can be lifted and moved inside the second cavity due to the meshing of the threads, thereby achieving the effect of indirectly controlling the position of the universal wheel.

[0009] Preferably, the top surface of the flat plate is connected to a second telescopic rod, and the bottom surface of the flat plate is connected to a universal wheel. The installation of the second telescopic rod stabilizes the four sides of the flat plate when the screw sleeve rotates the meshing screw rod to lift the flat plate, thereby achieving the effect of stabilizing the lifting and lowering movement of the flat plate in the second cavity. By setting the universal wheel, the utility model can be pushed and moved, achieving the effect of saving time and effort in moving the utility model.

[0010] Preferably, a second bevel gear is provided at the outer top of the screw sleeve, the surface of the second bevel gear is meshed with the first bevel gear, a transmission rod is provided inside the first bevel gear, and the transmission rod is rotatably mounted inside the first cavity. Through the cooperation of the first bevel gear and the second bevel gear, the rotational force on the transmission rod can be transmitted to the screw sleeve, achieving the effect of power transmission.

[0011] Preferably, a handle is fixed at one end of the transmission rod, a first telescopic rod is provided inside the handle, and the first telescopic rod is fixed to the outer side of the bottom plate. Through the cooperation between the transmission rod and the handle, the staff can output a rotational force to the screw sleeve, thereby achieving the effect of providing a power output point. The installation of the first telescopic rod allows the handle to be stuck and limited in rotation, thereby indirectly limiting the position of the universal wheel.

[0012] Preferably, a push rod is connected to one end of the outer top surface of the bottom plate, and a push handle is fixed to the top of the push rod. Through the cooperation of the push rod and the push handle, it is convenient for the staff to push the utility model to move, achieving the effect of providing a power output point.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model is provided with a liftable flat plate inside the bottom plate, and universal wheels are installed on the bottom surface of the flat plate. The universal wheels are lowered to the ground for easy movement of the utility model, and the universal wheels are raised and hidden to extend their service life. The flat plate is lifted and moved by the transmission force output by the staff on the two bevel gears. The lifting structure is simple and is installed inside the bottom plate without being exposed to reduce damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main appearance structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the bottom plate of the utility model from a top view;

[0017] Figure 3 This is a front view schematic diagram of the internal structure of the bottom plate of the utility model;

[0018] Figure 4 It is a schematic diagram of the internal structure of the bottom plate of the utility model from the side.

[0019] In the figure: 1, bottom plate; 2, base; 3, hydraulic cylinder; 4, bracket; 5, push rod; 6, push handle; 7, first cavity; 8, first bevel gear; 9, second bevel gear; 10, screw sleeve; 11, transmission rod; 12, first telescopic rod; 13, turning handle; 14, universal wheel; 15, flat plate; 16, second cavity; 17, screw rod; 18, second telescopic rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Embodiment 1

[0022] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the utility model proposes a comprehensive mining working face support device, including a bottom plate 1 and a screw sleeve 10, a base 2 is provided in the middle of the outer top surface of the bottom plate 1, one end of the base 2 is connected to a hydraulic cylinder 3, the top of the hydraulic cylinder 3 is connected to a bracket 4, and the bracket 4 is rotatably installed on the other end of the base 2, a first cavity 7 is opened in the inner top end of the bottom plate 1, a second cavity 16 is opened in the inner bottom end of the bottom plate 1, and a screw sleeve 10 is rotatably installed between the second cavity 16 and the first cavity 7.

[0023] The staff needs to move the utility model to the position to be used first, and the staff holds the push handle 6 to push the utility model to the position to be used. After arriving at the destination, the staff needs to retract the universal wheel 14 into the second cavity 16 opened in the bottom plate 1. The specific operation is that the staff presses the first telescopic rod 12 to release the restriction on the turning handle 13. After the restriction is released, the staff holds the turning handle 13 and rotates it. The rotational force applied to the turning handle 13 will be synchronized to the transmission rod 11. After the transmission rod 11 rotates, the first bevel gear 8 fixed on its surface will rotate accordingly, and the first bevel gear 8 rotates the second bevel gear 9 on the meshing surface. The second bevel gear 9 carries the screw sleeve 10 in the first cavity 7 and the second cavity The screw sleeve 10 rotates on the partition plate between the two bodies 16. After the screw sleeve 10 rotates, the screw 17 inserted inside it will telescope due to the meshing of the threads. The telescopic screw 17 will pull the flat plate 15 connected to the bottom end, so that the flat plate 15 will rise in the second cavity 16. The universal wheel 14 installed on the bottom surface of the flat plate 15 will also rise synchronously, and then shrink and hide in the second cavity 16 without contacting the ground. After the universal wheel 14 is hidden and placed, its bottom plate 1 will be directly attached to the ground. At this time, the staff will externally power the hydraulic system of the utility model, and the hydraulic system will control the operation of the hydraulic cylinder 3. The hydraulic cylinder 3 will push the bracket 4 and press it against the coal wall to complete the support operation.

[0024] Embodiment 2

[0025] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a comprehensive mining working face support device proposed by the utility model, compared with the first embodiment, this embodiment also includes: a screw 17 is inserted into the interior of the screw sleeve 10, the bottom end of the screw 17 is connected to a plate 15, and the plate 15 is arranged inside the second cavity 16, the top surface of the plate 15 is connected to a second telescopic rod 18, the bottom surface of the plate 15 is connected to a universal wheel 14, the outer top end of the screw sleeve 10 is provided with a second bevel gear 9, the surface of the second bevel gear 9 is meshed with a first bevel gear 8, a transmission rod 11 is provided inside the first bevel gear 8, and the transmission rod 11 is rotatably installed inside the first cavity 7, a turning handle 13 is fixed at one end of the transmission rod 11, a first telescopic rod 12 is provided inside the turning handle 13, and the first telescopic rod 12 is fixed to the outer side of the bottom plate 1, a push rod 5 is connected to one end of the outer top surface of the bottom plate 1, and a push handle 6 is fixed to the top of the push rod 5.

[0026] In this embodiment, Figure 2 , Figure 3 and Figure 4 As shown, through the cooperation between the screw sleeve 10 and the screw rod 17, the plate 15 can be lifted and moved inside the second cavity 16 due to the meshing of the threads, thereby achieving the effect of indirectly controlling the position of the universal wheel 14;

[0027] like Figure 2 , Figure 3 and Figure 4 As shown, the installation of the second telescopic rod 18 enables the screw sleeve 10 to rotate the meshing screw 17 to stabilize the four sides of the plate 15 when lifting it, thereby achieving the effect of stabilizing the lifting and lowering movement of the plate 15 in the second cavity 16. By setting the universal wheel 14, the utility model can be pushed and moved, achieving the effect of saving time and effort in moving the utility model;

[0028] like Figure 2 , Figure 3 and Figure 4 As shown, through the cooperation of the first bevel gear 8 and the second bevel gear 9, the rotational force on the transmission rod 11 can be transmitted to the screw sleeve 10, achieving the effect of power transmission;

[0029] like Figure 2 , Figure 3 and Figure 4 As shown, through the cooperation of the transmission rod 11 and the rotating handle 13, the staff can output the rotating force to the screw sleeve 10, thereby achieving the effect of providing a power output point. The installation of the first telescopic rod 12 can make the rotating handle 13 be stuck and restricted from rotating, thereby indirectly restricting the position of the universal wheel 14;

[0030] like Figure 1 As shown, through the cooperation of the push rod 5 and the push handle 6, it is convenient for the staff to push the utility model to move, thereby achieving the effect of providing a power output point.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fully mechanized mining face support device, comprising a bottom plate (1) and a screw sleeve (10), characterized in that: A base (2) is provided in the middle of the outer top surface of the base plate (1), one end of the base (2) is connected to a hydraulic cylinder (3), the top end of the hydraulic cylinder (3) is connected to a bracket (4), and the bracket (4) is rotatably mounted on the other end of the base (2), the top end of the inner part of the base plate (1) is provided with a first cavity (7), the bottom end of the inner part of the base plate (1) is provided with a second cavity (16), and a screw sleeve (10) is rotatably mounted between the second cavity (16) and the first cavity (7).

2. A fully mechanized mining face support device according to claim 1, characterized in that: A screw rod (17) is inserted into the screw sleeve (10), a flat plate (15) is connected to the bottom end of the screw rod (17), and the flat plate (15) is arranged inside the second cavity (16).

3. A fully mechanized mining face support device according to claim 2, characterized in that: The top surface of the flat plate (15) is connected to a second telescopic rod (18), and the bottom surface of the flat plate (15) is connected to a universal wheel (14).

4. A fully mechanized mining face support device according to claim 1, characterized in that: A second bevel gear (9) is provided at the outer top end of the screw sleeve (10), the surface of the second bevel gear (9) is meshed with the first bevel gear (8), a transmission rod (11) is provided inside the first bevel gear (8), and the transmission rod (11) is rotatably mounted inside the first cavity (7).

5. A fully mechanized mining face support device according to claim 4, characterized in that: A rotating handle (13) is fixed to one end of the transmission rod (11), a first telescopic rod (12) is arranged inside the rotating handle (13), and the first telescopic rod (12) is fixed to the outer side surface of the bottom plate (1).

6. A fully mechanized mining face support device according to claim 1, characterized in that: One end of the outer top surface of the bottom plate (1) is connected to a push rod (5), and a push handle (6) is fixed to the top of the push rod (5).

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