Mine supporting device

Abstract

The utility model discloses a mine hole supporting device which comprises two supporting columns, first sliding grooves are formed in the supporting columns, sliding blocks are connected in the first sliding grooves in a sliding mode, the upper ends of the sliding blocks are fixedly connected with evenly-distributed adjusting columns, the upper ends of the adjusting columns are fixedly connected with the bottom of a supporting beam, and the mine hole supporting device further comprises a locking assembly. The locking assembly comprises second sliding grooves, locking columns, locking grooves and top strips, the second sliding grooves which are symmetrically distributed are formed in the left side and the right side of the upper end of the supporting column, the locking columns which are symmetrically distributed are slidably connected into the second sliding grooves, the locking grooves which are evenly distributed are formed in the opposite inner sides of the adjusting columns, and the locking grooves and the horizontally adjacent locking columns are arranged in a matched mode. According to the mine hole supporting device, through cooperation of the locking columns and the locking grooves, after the supporting beams abut against the top of the mine hole, supporting reaction force is shared for the sliding blocks, and therefore the situation that due to the fact that the lead screws bear too large reaction force for a long time, the service life is shortened due to fatigue is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of mine support, in particular to a mine support device. Background Art

[0002] When mining in a mine, in order to ensure the safety of miners, a mine support device is usually installed inside the mine to prevent the mine from collapsing suddenly.

[0003] In the prior art: Patent with authorization publication number CN207177934U discloses a mine internal support reinforcement device, including a device body, a top plate is provided on the device body, support columns are provided on both sides of the top plate, a connecting seat is provided on the top of the support column, the connecting seat and the top plate are fixedly connected by welding, the support column and the inside of the connecting seat are fastened by threads, a base is provided at the bottom of the support column, the base is fixedly connected to the bottom of the support column by welding, an operating cavity is provided on the base, and the operating cavity is provided on the inner side of the support column, The device body is provided with a screw rod, a reinforcement slider is provided on the screw rod, the reinforcement slider is connected to the screw rod by a screw rod type, the screw rod is rotationally connected to the operating chamber, the bottom of the screw rod is provided inside the operating chamber, a bevel gear B is provided at the bottom of the screw rod, the bevel gear B is fixedly connected to the screw rod by a fixing screw, a rotating rod is provided inside the operating chamber, the rotating rod is rotationally connected to the inner wall of the operating chamber, a bevel gear A is provided on the rotating rod, the bevel gear A is fixedly connected to the rotating rod by a fixing screw, and the bevel gear A and the bevel gear B are meshed with each other;

[0004] This type of mine support device has the following disadvantages: there is no limit assembly to share the reaction force of the support for the screw rod, which will cause screw rod fatigue after long-term use, thereby reducing the service life of the screw rod. For this reason, we propose a mine support device. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a mine support device, which, through the cooperation of the locking column and the locking groove, shares the support reaction force for the slider after the support beam supports the top of the mine, thereby avoiding the screw rod from being subjected to excessive reaction force for a long time and fatigue resulting in a reduction in life, and can effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mine support device, comprising pillars, wherein there are two pillars, each of which is provided with a slide groove, each of which is slidably connected with a slider, each of which has an upper end fixedly connected with evenly distributed adjustment columns, each of which has an upper end fixedly connected with the bottom of a support beam, and further comprising a locking assembly;

[0007] The locking assembly includes a second slide groove, a locking column, a locking groove and a top strip. The left and right sides of the upper end of the pillar are provided with symmetrically distributed slide grooves. The second slide grooves are slidably connected with symmetrically distributed locking columns. The relatively inner sides of the adjusting columns are provided with evenly distributed locking grooves. The locking grooves are coordinated with the horizontally adjacent locking columns. Top strips are arranged on the left and right sides of the top of the pillar. The bottom surfaces of the top strips are in contact with the upper ends of the locking columns located in the same vertical plane. Through the cooperation of the locking column and the locking groove, the reaction force of the support is shared by the slider after the support beam supports the top of the mine, thereby preventing the screw rod from being subjected to excessive reaction force for a long time and fatigue resulting in a reduction in life.

[0008] Furthermore, the locking assembly also includes a spring. A spring is arranged between the inner wall of the second slide groove and the baffle at the rear end of the locking column. The spring is sleeved on the outer surface of the locking column to provide a rebound force for the locking column.

[0009] Furthermore, the locking assembly also includes a limit groove and a limit block. Slide openings are provided on the left and right sides of the top of the pillar, and a limit groove is provided in the middle of the slide opening. Limit blocks are provided at the front and rear ends of the top strip. The top strip is slidably connected to the limit groove through the limit block to provide a limit for the locking column.

[0010] Furthermore, a screw rod is rotatably connected between the upper and lower inner walls of the slide groove 1 on the right side, and the screw rod is threadedly connected to the threaded hole in the middle of the vertically adjacent slider.

[0011] Furthermore, the outer surface of the connecting shaft at the lower end of the screw rod is sleeved with a bevel gear, and the lower end of the front side wall of the slide groove is rotatably connected with a bevel gear, and the bevel gear is meshed with the bevel gear to drive the slider to rotate.

[0012] Furthermore, a crank is provided at the lower front end of the pillar on the right side, and the rear end of the crank passes through the circular hole on the front side of the pillar and is fixedly connected to the front end of the bevel gear to drive the screw to rotate.

[0013] Furthermore, a rotating seat 1 is provided at the rear end of the pillar, and the rotating seat 1 is rotatably connected to the upper end of the support rod through a pin shaft 1, and the lower end of the support rod is rotatably connected to the rotating seat 2 through a pin shaft 2, and the bottom of the rotating seat 2 is fixedly connected to the upper end of the fixed plate to assist in the support of the pillar.

[0014] Furthermore, the upper ends of the fixing plates are provided with symmetrically distributed fixing holes to fix the fixing plates.

[0015] Compared with the prior art, the beneficial effects of the utility model are: the mine support device has the following advantages:

[0016] The locking column is squeezed by the bottom of the top bar to make the two locking columns slide to both sides at the same time, thereby realizing the locking of the adjusting column, and the top bar is locked in the limiting groove by the limit block to realize the locking of the adjusting column. After the support beam supports the top of the mine, the reaction force of the support is shared for the slider through the cooperation of the locking column and the locking groove, thereby preventing the screw rod from bearing too much reaction force for a long time and fatigue resulting in a reduction in life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure of the utility model in cross section;

[0019] Figure 3 It is a schematic diagram of the structure of the utility model enlarged at A;

[0020] Figure 4 It is a schematic diagram of the structure of the exploded cross-section of the locking assembly of the utility model.

[0021] In the figure: 1 pillar, 2 slide groove 1, 3 slider, 4 screw rod, 5 bevel gear, 6 bevel gear, 7 crank, 8 rotating seat 1, 9 support rod, 10 rotating seat 2, 11 fixed plate, 12 adjustment column, 13 support beam, 14 locking assembly, 141 slide groove 2, 142 locking column, 143 spring, 144 locking groove, 145 top strip, 146 limit groove, 147 limit block. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figures 1-4, this embodiment provides a technical solution: a mine cave support device, including two support columns 1. Each support column 1 is provided with a first chute 2 inside. A slider 3 is slidably connected inside each first chute 2. The upper ends of the sliders 3 are fixedly connected with evenly distributed adjusting columns 12. The upper ends of the adjusting columns 12 are fixedly connected to the bottom of the support beam 13. It also includes a locking component 14. A lead screw 4 is rotatably connected between the upper and lower inner walls of the first chute 2 on the right side. The lead screw 4 is threadedly connected to the threaded hole in the middle of the vertically adjacent slider 3. A bevel gear 5 is sleeved on the outer surface of the coupling shaft at the lower end of the lead screw 4. A bevel gear 6 is rotatably connected to the lower end of the front side wall of the first chute 2. The bevel gear 6 is meshed with the bevel gear 5. A crank 7 is arranged at the lower front side of the support column 1 on the right side. The rear end of the crank 7 passes through the round hole on the front side of the support column 1 and is fixedly connected to the front end of the bevel gear 6. A first rotating seat 8 is arranged at the rear end of each support column 1. The first rotating seat 8 is rotatably connected to the upper end of the support rod 9 through a first pin shaft. The lower ends of the support rods 9 are rotatably connected to the second rotating seat 10 through a second pin shaft. The bottom of the second rotating seat 10 is fixedly connected to the upper end of the fixing plate 11. Symmetrically distributed fixing holes are provided on the upper end of the fixing plate 11. First, the support column 1 needs to be placed at the position to be supported and then the support rod 9 is spread out. The support column 1 is temporarily supported by fixing the fixing plate 11 on the ground. Then, according to the height of the mine cave, the crank 7 is shaken simultaneously. The crank 7 drives the lead screw 4 to rotate and drives the slider 3 to slide upward, so that the support beam 13 rises;

[0024] The locking assembly 14 includes a second slide groove 141, a locking column 142, a locking groove 144 and a top strip 145. The left and right sides of the upper end of the pillar 1 are provided with symmetrically distributed slide grooves 141, and the symmetrically distributed locking columns 142 are slidably connected in the second slide grooves 141. The opposite inner sides of the adjustment column 12 are provided with uniformly distributed locking grooves 144. The locking grooves 144 are arranged in cooperation with the horizontally adjacent locking columns 142. The top left and right sides of the pillar 1 are provided with top strips 145. The bottom surfaces of the top strips 145 are connected to the same The locking assembly 14 also includes a spring 143. A spring 143 is arranged between the inner wall of the second slide groove 141 and the baffle at the rear end of the locking column 142. The spring 143 is sleeved on the outer surface of the locking column 142. The locking assembly 14 also includes a limit groove 146 and a limit block 147. The left and right sides of the top of the pillar 1 are provided with a sliding opening, and the middle of the sliding opening is provided with a limit groove 146. The front and rear ends of the top strip 145 are provided with a limit block 147. The top strip 145 is limited by the limit The block 147 is slidably connected in the limiting groove 146, and then the top strip 145 is pressed downward. Since the bottom of the top strip 145 is conical, when the bottom of the top strip 145 contacts the rear end of the locking column 142, the two locking columns 142 will be squeezed to both sides at the same time to slide to both sides, and the spring 143 will be squeezed, forcing the two locking columns 142 to extend into the locking groove 144 to achieve the locking of the adjustment column 12. Since the upper end of the limiting groove 146 is a square groove and the lower end is a circular groove, the length of the limiting groove 146 is equal to the diameter of the locking column 142 Therefore, when the limit block 147 slides to the bottom of the limit groove 146, the locking column 142 can be completely pushed out. At this time, the limit block 147 just slides into the circular groove. At this time, the top bar 145 can be locked in the limit groove 146 by rotating it 90 degrees, completing the locking of the adjustment column 12. Through the cooperation of the locking column 142 and the locking groove 144, after the support beam 13 supports the top of the mine, the slider 3 shares the supporting reaction force, thereby preventing the screw rod 4 from bearing too much reaction force for a long time and fatigue, resulting in a shortened life.

[0025] The working principle of a mine support device provided by the utility model is as follows: when a mine needs to be supported, the support column 1 needs to be placed at the position where support is needed and then the support rod 9 is spread out, the support column 1 is temporarily supported by fixing the fixing plate 11 to the ground, and then the crank 7 is shaken according to the height of the mine, and the crank 7 drives the screw rod 4 to rotate and drive the slider 3 to slide upward, so that the support beam 13 rises until it supports the top of the mine, and then the top bar 145 is pressed downward. Since the bottom of the top bar 145 is conical, when the bottom of the top bar 145 contacts the rear end of the locking column 142, the two locking columns 14 At the same time, the two locking posts 142 are pressed and slid toward both sides, and the spring 143 is pressed, so as to force the two locking posts 142 to extend into the locking groove 144 to realize the locking of the adjusting post 12. Since the upper end of the limiting groove 146 is a square groove and the lower end is a circular groove, the length of the limiting groove 146 is equal to the diameter of the locking post 142. Therefore, when the limiting block 147 slides to the bottom of the limiting groove 146, the locking post 142 can be completely pushed out. At this time, the limiting block 147 just slides into the circular groove. At this time, the top strip 145 can be rotated 90 degrees to lock the top strip 145 in the limiting groove 146, thereby completing the locking of the adjusting post 12.

[0026] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A mine support device, comprising a pillar (1), wherein there are two pillars (1), each of the pillars (1) is provided with a slide groove (2), each of the slide grooves (2) is slidably connected with a slider (3), the upper ends of the sliders (3) are fixedly connected with uniformly distributed adjustment columns (12), and the upper ends of the adjustment columns (12) are fixedly connected to the bottom of the support beam (13), characterized in that: Also includes a locking assembly (14); The locking assembly (14) comprises a second slide groove (141), a locking column (142), a locking groove (144) and a top strip (145). The left and right sides of the upper end of the pillar (1) are provided with symmetrically distributed slide grooves (141), and the symmetrically distributed locking columns (142) are slidably connected in the second slide grooves (141). The opposite inner sides of the adjustment column (12) are provided with uniformly distributed locking grooves (144). The locking grooves (144) are arranged in cooperation with the horizontally adjacent locking columns (142). The left and right sides of the top of the pillar (1) are provided with top strips (145), and the bottom surfaces of the top strips (145) are in contact with the upper ends of the locking columns (142) located in the same vertical plane.

2. A mine support device according to claim 1, characterized in that: The locking assembly (14) further comprises a spring (143), and a spring (143) is arranged between the inner wall of the second slide groove (141) and the blocking piece at the rear end of the locking column (142), and the spring (143) is sleeved on the outer surface of the locking column (142).

3. A mine support device according to claim 1, characterized in that: The locking assembly (14) further comprises a limiting groove (146) and a limiting block (147); a sliding opening is provided on both left and right sides of the top of the pillar (1); a limiting groove (146) is provided in the middle of the sliding opening; limiting blocks (147) are provided at both front and rear ends of the top strip (145); and the top strip (145) is slidably connected to the limiting groove (146) via the limiting block (147).

4. A mine support device according to claim 1, characterized in that: A screw rod (4) is rotatably connected between the upper and lower inner walls of the right slide groove (2), and the screw rod (4) is threadedly connected to a threaded hole in the middle of a vertically adjacent slider (3).

5. A mine support device according to claim 4, characterized in that: The outer surface of the connecting shaft at the lower end of the screw rod (4) is sleeved with a bevel gear (5), and the lower end of the front side wall of the slide groove (2) is rotatably connected with a bevel gear (6), and the bevel gear (6) is meshedly connected with the bevel gear (5).

6. A mine support device according to claim 5, characterized in that: A crank (7) is provided at the lower front end of the pillar (1) on the right side, and the rear end of the crank (7) passes through a circular hole on the front side of the pillar (1) and is fixedly connected to the front end of the bevel gear (6).

7. A mine support device according to claim 1, characterized in that: The rear end of the pillar (1) is provided with a rotating seat (8), and the rotating seat (8) is rotatably connected to the upper end of the support rod (9) through a pin shaft (1), and the lower end of the support rod (9) is rotatably connected to the rotating seat (10) through a pin shaft (2), and the bottom of the rotating seat (10) is fixedly connected to the upper end of the fixed plate (11).

8. A mine support device according to claim 7, characterized in that: The upper ends of the fixing plates (11) are provided with symmetrically distributed fixing holes.

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