Mining pneumatic anchor net auxiliary lifting frame

Abstract

The utility model discloses a mining pneumatic anchor net auxiliary lifting frame. A main rod and an auxiliary rod are connected through a universal connecting sleeve assembly. The main rod base is sequentially connected with a first-stage pneumatic telescopic rod, a second-stage pneumatic telescopic rod and an anchor net bracket. The auxiliary rod base is sequentially connected with an auxiliary first-stage pneumatic telescopic rod, an auxiliary second-stage pneumatic telescopic rod and an auxiliary rod tip. By the adoption of the technical scheme, a plurality of anchor nets can be lifted to preset positions at the same time at a time, and the anchor nets can be jacked and pressed through the auxiliary rods so that the anchor nets can be tightly attached to the walls of different positions of a roadway. The labor intensity of lifting the anchor net is greatly reduced, the anchor net is tightly attached to all rock walls, and the supporting quality is improved; and risks caused by climbing operation are avoided, and meanwhile the supporting operation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a lifting frame device, in particular to a mining anchor net lifting frame device. Background Art

[0002] The conventional practice of anchor rod and anchor net support in underground mines is to first manually lift the anchor net to the preset position of the top wall and make the anchor net close to the tunnel rock wall, and then use the air-leg rock drill to install the anchor rod into the drill hole to achieve the purpose of fixing the anchor net. The main disadvantages are: first, manual lifting of the anchor net for a long time can easily cause physical fatigue to the operator; second, when constructing at a higher top wall, it is necessary to manually lift the anchor net after climbing up, which brings a certain risk of falling; third, when constructing at arch angles and locations with large undulations, it is impossible to effectively make the anchor net close to the rock wall due to human power, resulting in great construction difficulty and poor construction effect. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a mining pneumatic anchor net auxiliary lifting frame, which can lift multiple anchor nets to a predetermined position at a time and make the anchor nets close to the rock wall, thereby reducing labor intensity, avoiding high-altitude operations, and improving operation quality and efficiency.

[0004] The technical solution of the utility model is as follows:

[0005] A pneumatic anchor net auxiliary lifting frame for mining, comprising a main rod, an auxiliary rod and a universal connection sleeve assembly, wherein the main rod comprises a main rod base, which is sequentially connected to a primary pneumatic telescopic rod, a secondary pneumatic telescopic rod and an anchor net bracket; the main rod base is rotatably connected to the main rod sleeve; the auxiliary rod comprises an auxiliary rod base, which is sequentially connected to an auxiliary primary pneumatic telescopic rod, an auxiliary secondary pneumatic telescopic rod and an auxiliary rod top; the auxiliary rod base is rotatably connected to a secondary rod sleeve; the universal connection sleeve assembly comprises a positioning column fixedly connected to one side of the secondary rod sleeve, and an angle adjustment disk is fixedly connected to the positioning column The angle adjustment disk is provided with a plurality of adjustment disk slots evenly distributed around the circumference; the positioning column is also provided with a circle of locking pin slots located on the outside of the angle adjustment disk; one side of the main rod sleeve is fixedly connected to the main connecting disk through a connecting tube; the main connecting disk is provided with a secondary rod positioning hole whose inner end is connected to the connecting tube, and the positioning column is inserted into the connecting tube through the secondary rod positioning hole; the wall of the connecting tube is provided with a locking pin hole, and a universal locking pin is installed in the locking pin hole, and the inner end of the universal locking pin is located in the locking pin slot; a positioning rod for engaging with the adjustment disk slot is fixedly connected to the main connecting disk.

[0006] Preferably, the main rod includes a main rod base in the form of a piston cylinder, a first-level pneumatic telescopic rod in the form of a piston cylinder, and a second-level pneumatic telescopic rod in the form of a piston rod; the bottom end of the first-level pneumatic telescopic rod has a first-level piston located in the main rod base cylinder, and the bottom end of the second-level pneumatic telescopic rod has a second-level piston located in the first-level pneumatic telescopic rod cylinder; the first-level piston is provided with an air vent for connecting the space above and below the first-level piston; an air inlet pipe and an air return pipe are installed on the main rod base, wherein the inner end of the air inlet pipe is connected to the space below the first-level piston in the main rod base cylinder, and the outer end is used to connect high-pressure gas; the inner end of the air return pipe is connected to the space above the second-level piston inside the first-level pneumatic telescopic rod.

[0007] Preferably, the anchor net bracket is provided with a bracket body, and a limiting shaft sleeve shell is connected to the lower side of the bracket body; the limiting shaft sleeve shell is connected to a connecting limiting shaft that can swing around the limiting shaft sleeve shell, and the lower end of the connecting limiting shaft is rotatably connected to the top end of the secondary pneumatic telescopic rod.

[0008] Preferably, the auxiliary rod top is provided with a disc top, and a top sleeve is connected to the lower side of the disc top; the top sleeve is connected to a top limit shaft that can swing around the top sleeve, and the lower end of the top limit shaft is rotatably connected to the top of the auxiliary secondary pneumatic telescopic rod.

[0009] Preferably, the main rod base is sleeved on the outside with a main rod limiting platform located below the main rod sleeve, and the main rod limiting platform is connected to the supporting legs via a hinge support.

[0010] The positive effects of the utility model are:

[0011] The technical solution of the utility model can lift multiple anchor nets to the predetermined position at one time, and can use auxiliary rods to press the anchor nets to make them close to the rock walls at different positions in the tunnel. The labor intensity of lifting the anchor nets is greatly reduced, and the anchor nets are close to the rock walls at various locations, which improves the support quality; it avoids the risks brought by high-altitude operations and improves the support operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0013] Figure 2 It is a structural schematic diagram of the telescopic drive mechanism of an embodiment of the utility model, and both the main rod and the auxiliary rod adopt the telescopic drive mechanism shown in the figure;

[0014] Figure 3 It is a structural schematic diagram of the main sleeve of the universal connecting sleeve assembly of the embodiment of the utility model;

[0015] Figure 4 It is a structural schematic diagram of the auxiliary sleeve of the universal connecting sleeve assembly of the embodiment of the utility model;

[0016] Figure 5 This is a schematic structural view of an anchor net bracket according to an embodiment of the utility model;

[0017] Figure 6 This is a schematic structural diagram of the top of the auxiliary rod in an embodiment of the utility model;

[0018] Figure 7 It is a schematic diagram of the application status of an embodiment of the utility model.

[0019] In the figure, 1: main rod, 1-1: main rod base, 1-2: first-stage pneumatic telescopic rod, 1-2-1: first-stage piston, 1-3: second-stage pneumatic telescopic rod, 1-3-1: second-stage piston, 1-4: main rod limiter, 1-5: hinge support, 1-6: air inlet pipe, 1-7: air return pipe, 2: auxiliary rod, 2-1: auxiliary rod base, 2-2: auxiliary first-stage pneumatic telescopic rod, 2-3: auxiliary second-stage pneumatic telescopic rod, 2-4: auxiliary rod limiter, 3: universal connecting sleeve assembly, 3-1: main rod sleeve, 3-2: auxiliary rod sleeve, 3-3: universal lock Pin, 3-4: Positioning rod lock pin, 3-5: Positioning rod, 3-6: Auxiliary rod positioning hole, 3-7: Locking pin hole, 3-8: Locking pin slot, 3-9: Adjustment disk slot, 3-10: Angle adjustment disk, 3-11: Positioning column, 3-12: Main connecting disk, 4: Anchor net bracket, 4-1: Bracket body, 4-2: Connecting limit shaft sleeve shell, 4-3: Connecting limit shaft, 5: Auxiliary rod top, 5-1: Disc top, 5-2: Top sleeve shell, 5-3: Top limit shaft, 6: Leg, 6-1: Leg sleeve, 6-2: Telescopic leg, 7: Anchor net. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the embodiments and the accompanying drawings.

[0021] Embodiments of the present utility model include Figure 1 The main rod 1, the auxiliary rod 2, the universal connecting sleeve assembly 3, the anchor net bracket 4, the auxiliary rod top 5 and the supporting legs 6 are shown.

[0022] Combination Figure 1 and Figure 2The main rod 1 includes a main rod base 1-1 in the form of a piston cylinder, a first-level pneumatic telescopic rod 1-2 in the form of a piston cylinder, and a second-level pneumatic telescopic rod 1-3 in the form of a piston rod. The bottom end of the first-level pneumatic telescopic rod 1-2 has a first-level piston 1-2-1 located in the cylinder of the main rod base 1-1, and the bottom end of the second-level pneumatic telescopic rod 1-3 has a second-level piston 1-3-1 located in the cylinder of the first-level pneumatic telescopic rod 1-2. The first-level piston 1-2-1 is provided with a vent hole for connecting the upper and lower spaces of the first-level piston. An air inlet pipe 1-6 and an air return pipe 1-7 are installed on the main rod base 1-1, wherein the inner end of the air inlet pipe 1-6 is connected to the space below the first-level piston 1-2-1 in the cylinder of the main rod base 1-1, and the outer end is used to connect high-pressure gas. The inner end of the air return pipe 1-7 is connected to the space above the second-level piston 1-3-1 inside the first-level pneumatic telescopic rod 1-2.

[0023] Close the return pipe 1-7, and the high-pressure gas enters the space below the primary piston 1-2-1 in the main rod base 1-1 through the intake pipe 1-6, and then enters the space below the secondary piston 1-3-1 inside the primary pneumatic telescopic rod 1-2 through the vent hole, and pushes the secondary pneumatic telescopic rod 1-3 upward through the secondary piston 1-3-1, thereby driving the primary pneumatic telescopic rod 1-2 to move upward, so that the primary pneumatic telescopic rod 1-2 and the secondary pneumatic telescopic rod 1-3 are extended. Close the intake pipe 1-6 and open the return pipe 1-7, and the primary pneumatic telescopic rod 1-2 and the secondary pneumatic telescopic rod 1-3 are retracted.

[0024] The main rod base 1-1 is rotatably connected to the main rod sleeve 3-1, and the outside of the main rod base 1-1 is also sleeved with a main rod limit platform 1-4 respectively located above and below the main rod sleeve 3-1. The lower main rod limit platform 1-4 is connected to the support leg 6 through a hinge support 1-5. Specifically, the support leg 6 includes a support leg sleeve 6-1 axially connected to the hinge support 1-5 and a telescopic support leg 6-2 telescopically installed in the support leg sleeve 6-1.

[0025] The top end of the secondary pneumatic telescopic rod 1-3 is connected to the anchor net bracket 4. Figure 5 The anchor net bracket 4 is provided with a bracket body 4-1 made of a steel pipe, and a limit shaft sleeve 4-2 is connected to the lower side of the bracket body 4-1. The limit shaft sleeve 4-2 is connected to a connection limit shaft 4-3 that can swing around the limit shaft sleeve 4-2, and the lower end of the connection limit shaft 4-3 is rotatably connected to the top of the secondary pneumatic telescopic rod 1-3. Based on the above structure, the bracket body 4-1 can rotate and can be appropriately tilted left and right to adapt to the shape of the top plate.

[0026] The auxiliary rod 2 has the same structure as the main rod 1. Specifically, the auxiliary rod 2 includes an auxiliary rod base 2-1 in the form of a piston cylinder, an auxiliary first-stage pneumatic telescopic rod 2-2 in the form of a piston cylinder, and an auxiliary second-stage pneumatic telescopic rod 2-3 in the form of a piston rod. The bottom end of the auxiliary first-stage pneumatic telescopic rod 2-2 has an auxiliary first-stage piston located in the cylinder of the auxiliary rod base 2-1, and the bottom end of the auxiliary second-stage pneumatic telescopic rod 2-3 has an auxiliary second-stage piston located in the cylinder of the auxiliary first-stage pneumatic telescopic rod 2-2. The auxiliary first-stage piston is provided with a vent hole for connecting the upper and lower spaces of the auxiliary first-stage piston. An auxiliary air inlet pipe and an auxiliary air return pipe are installed on the auxiliary rod base 2-1, wherein the inner end of the auxiliary air inlet pipe is connected to the space below the auxiliary first-stage piston in the cylinder of the auxiliary rod base 2-1, and the outer end is used to connect high-pressure gas. The inner end of the auxiliary air return pipe is connected to the space above the auxiliary second-stage piston inside the auxiliary first-stage pneumatic telescopic rod 2-2.

[0027] The auxiliary rod base 2-1 is rotatably connected to the auxiliary rod sleeve 3-2, and the outer side of the auxiliary rod base 2-1 is also sleeved with an auxiliary rod limiting platform 2-4 respectively located above and below the auxiliary rod sleeve 3-2.

[0028] The top end of the auxiliary secondary pneumatic telescopic rod 2-3 is connected to the top end of the auxiliary rod 5. Figure 6 The auxiliary rod tip 5 is provided with a disc tip 5-1 made of a steel plate, which is protruding outward and has a diameter larger than the grid spacing of the anchor net 7. The lower side of the disc tip 5-1 is connected to a tip cover 5-2. The tip cover 5-2 is connected to a tip limit shaft 5-3 that can swing around the tip cover 5-2, and the lower end of the tip limit shaft 5-3 is rotatably connected to the top of the auxiliary secondary pneumatic telescopic rod 2-3. Based on the above structure, the disc tip 5-1 can follow the anchor net 7 and fit in place.

[0029] The universal connection sleeve assembly 3 of this embodiment includes Figure 3 The main set shown and Figure 4 Auxiliary sleeve shown.

[0030] like Figure 3 and Figure 4 A positioning column 3-11 is fixedly connected to one side of the secondary rod sleeve 3-2, and an angle adjustment disk 3-10 is fixedly connected to the positioning column 3-11. Twelve adjustment disk slots 3-9 are evenly distributed on the outer side of the angle adjustment disk 3-10. The positioning column 3-11 also has a circle of lock pin slots 3-8 located on the outer side of the angle adjustment disk 3-10 (i.e., the opposite side of the secondary rod sleeve 3-2).

[0031] One side of the main rod sleeve 3-1 is fixedly connected to a main connecting plate 3-12 through a connecting tube. The main connecting plate 3-12 is provided with a secondary rod positioning hole 3-6 whose inner end is communicated with the connecting tube, and the positioning column 3-11 penetrates into the connecting tube through the secondary rod positioning hole 3-6. The wall of the connecting tube is provided with a locking pin hole 3-7, and a universal locking pin 3-3 is installed in the locking pin hole 3-7. The inner end of the universal locking pin 3-3 is located in the locking pin groove 3-8, which is used for axial limiting of the positioning column 3-11.

[0032] The main connecting disk 3-12 is fixedly connected with a positioning rod 3-5 for engaging with the adjusting disk slot 3-9. Specifically, the positioning rod 3-5 runs parallel to the axis of the main connecting disk 3-12 and is connected to the main connecting disk 3-12 through a positioning rod locking pin 3-4.

[0033] When using, Figure 7 As shown, after bundling multiple anchor nets 7 in sequence, they are placed on the anchor net bracket 4 along the tunnel direction. High-pressure air is used to drive the main pole 1 to lift the anchor net 7 off the ground, and then the anchor net 7 is rotated to drive the net bracket 4 to rotate the anchor net 7 to the vertical direction of the tunnel. High-pressure air is continued to be used to drive the main pole 1 to lift to the top plate position.

[0034] Unlock the positioning rod 3-5 (disengage it from the adjusting plate slot 3-9), rotate the auxiliary rod 2 to the required angle, and then lock the positioning rod 3-5. Use high-pressure air to drive the auxiliary rod 2 out, and the auxiliary rod tip 5 presses the anchor net 7 to make the latter close to the tunnel wall, and then carry out the anchor support operation.

[0035] After the support at the close position is completed, use high-pressure air to drive the auxiliary rod 2 to retract and unlock the positioning rod 3-5. Continue to adjust the rotation angle of the auxiliary rod 2 downward according to the on-site situation and then lock the positioning rod 3-5. Push out the auxiliary rod 2 again, and use the auxiliary rod top 5 to press the anchor net 7 to make the latter close to another side wall of the tunnel, and then carry out the next set of anchor construction.

[0036] After the anchor rod construction on one side is completed, the auxiliary rod 2 is retracted and rotated around the main rod 1 to the other side along with the main rod sleeve 3-1, and the above construction process is repeated to complete the anchor net support work of the entire section.

Claims

1. A mining pneumatic anchor net auxiliary lifting frame, comprising a main rod (1), an auxiliary rod (2) and a universal connecting sleeve assembly (3), characterized in that: The main rod (1) comprises a main rod base (1-1), the main rod base (1-1) being sequentially connected to a primary pneumatic telescopic rod (1-2), a secondary pneumatic telescopic rod (1-3) and an anchor net bracket (4); the main rod base (1-1) is rotatably connected to a main rod sleeve (3-1); the auxiliary rod (2) comprises an auxiliary rod base (2-1), the auxiliary rod base (2-1) being sequentially connected to an auxiliary primary pneumatic telescopic rod (2-2), an auxiliary secondary pneumatic telescopic rod (2-3) and an auxiliary rod top (5); the auxiliary rod base (2-1) is rotatably connected to a secondary rod sleeve (3-2); the universal connecting sleeve assembly (3) comprises a positioning column (3-11) fixedly connected to one side of the secondary rod sleeve (3-2), the positioning column (3-11) being fixedly connected to an angle adjustment disk (3-10), the angle adjustment disk (3-10) being evenly distributed in the circumferential direction. A plurality of adjusting disk slots (3-9) are provided; the positioning column (3-11) is also provided with a circle of locking pin slots (3-8) located outside the angle adjusting disk (3-10); one side of the main rod sleeve (3-1) is fixedly connected to a main connecting disk (3-12) via a connecting tube; the main connecting disk (3-12) is provided with a secondary rod positioning hole (3-6) whose inner end communicates with the connecting tube, and the positioning column (3-11) penetrates into the connecting tube through the secondary rod positioning hole (3-6); a locking pin hole (3-7) is provided on the wall of the connecting tube, a universal locking pin (3-3) is installed in the locking pin hole (3-7), and the inner end of the universal locking pin (3-3) is located in the locking pin slot (3-8); a positioning rod (3-5) for engaging with the adjusting disk slot (3-9) is fixedly connected to the main connecting disk (3-12).

2. The mining pneumatic anchor net auxiliary lifting frame according to claim 1 is characterized in that: The main rod (1) comprises a main rod base (1-1) in the form of a piston cylinder, a first-stage pneumatic telescopic rod (1-2) in the form of a piston cylinder, and a second-stage pneumatic telescopic rod (1-3) in the form of a piston rod; the first-stage pneumatic telescopic rod (1-2) has a first-stage piston (1-2-1) located in the cylinder of the main rod base (1-1) at its bottom end, and the second-stage pneumatic telescopic rod (1-3) has a second-stage piston (1-3-1) located in the cylinder of the first-stage pneumatic telescopic rod (1-2) at its bottom end; the first-stage piston (1-2-1) is provided with a vent hole for connecting the space above and below the first-stage piston; an air inlet pipe (1-6) and an air return pipe (1-7) are installed on the main rod base (1-1), wherein the inner end of the air inlet pipe (1-6) is connected to the space below the first-stage piston (1-2-1) in the cylinder of the main rod base (1-1), and the outer end is used for connecting high-pressure gas; the inner end of the air return pipe (1-7) is connected to the space above the second-stage piston (1-3-1) inside the first-stage pneumatic telescopic rod (1-2).

3. The mining pneumatic anchor net auxiliary lifting frame according to claim 1 is characterized in that: The anchor net bracket (4) is provided with a bracket body (4-1), the lower side of the bracket body (4-1) being connected to a limit shaft sleeve (4-2); the limit shaft sleeve (4-2) is connected to a connection limit shaft (4-3) capable of swinging around the limit shaft sleeve (4-2), and the lower end of the connection limit shaft (4-3) is rotationally connected to the top end of the secondary pneumatic telescopic rod (1-3).

4. The mining pneumatic anchor net auxiliary lifting frame according to claim 1 is characterized in that: The auxiliary rod top end (5) is provided with a disc top end (5-1), and the bottom side of the disc top end (5-1) is connected to a top end sleeve (5-2); the top end sleeve (5-2) is connected to a top end limiting shaft (5-3) capable of swinging around the top end sleeve (5-2), and the bottom end of the top end limiting shaft (5-3) is rotatably connected to the top end of the auxiliary secondary pneumatic telescopic rod (2-3).

5. The mining pneumatic anchor net auxiliary lifting frame according to any one of claims 1 to 4, characterized in that: The main rod base (1-1) is sleeved on the outside with a main rod limiting platform (1-4) located below the main rod sleeve (3-1), and the main rod limiting platform (1-4) is connected to a support leg (6) via a hinge support (1-5).

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