CN213445955U - A novel lifting device for coal mine tunnel - Google Patents

Abstract

The utility model discloses a novel lifting device for coal mine tunnel, which comprises a vertically arranged anchor rod, wherein the top end of the anchor rod is fixedly arranged on a tunnel roof, a lifting column is fixedly connected with the bottom end of the anchor rod through threads, the diameter of the lifting column is larger than that of the lifting rod, a sliding through groove is horizontally arranged on the lifting column, two self-locking conical blocks are symmetrically and slidably arranged in the sliding through groove, the outer surface and the inner surface of each self-locking conical block are conical surfaces, and a movable conical block is arranged between the two self-locking conical blocks; the utility model has the advantages that: the utility model discloses simple structure designs the auto-lock awl piece that can stretch out and draw back on the stock, will go up the taper ring and taper ring cover is outside the auto-lock awl piece down during the use, during hoist and mount heavy object, because gravity reason, goes up the taper ring and taper ring wedge tightly outside the auto-lock awl piece down, realizes the auto-lock of hoist and mount chain and stock, prevents that it from taking place rotatoryly at hoist and mount in-process, and hoist and mount is more stable, reliable, safe, is worth using widely on a large scale.

Description

A novel lifting device for coal mine tunnel

The technical field is as follows:

the utility model relates to a coal mine tunnel hoist and mount technical field, concretely relates to a novel lifting device for coal mine tunnel.

Background art:

in the coal mine production process, often need erection equipment in the tunnel, the installation of equipment, lift by crane and generally need use chain block to lift by crane, current mode of lifting by crane utilizes the stock of fixing at the tunnel roof as the strong point, overlaps the grommet at chain both ends on the stock during lifting by crane, then screws up the nut in the bottom of stock and carries on spacingly, then hangs chain block's lifting hook on the chain cable and lifts by crane, this kind of shortcoming of mode of lifting by crane is: the cable chain is incompletely fixed with being connected of anchor rod among the lifting process, and the cable chain can produce the rotation around the anchor rod, and the focus is unstable, rocks easily when lifting by crane the major possession, and bending deformation or even fracture easily exists when single anchor rod lifts by crane, has great potential safety hazard.

The utility model has the following contents:

an object of the utility model is to provide a novel lifting device for coal mine tunnel.

The content of the utility model is as follows: a novel hoisting tool for a coal mine tunnel comprises a vertically arranged anchor rod, the top end of the anchor rod is fixedly arranged on a tunnel top plate, a hoisting column is fixedly connected to the bottom end of the anchor rod through threads, the diameter of the hoisting column is larger than that of the hoisting rod, a sliding through groove is horizontally formed in the hoisting column, two self-locking conical blocks are symmetrically and slidably arranged in the sliding through groove, the outer surface and the inner surface of each self-locking conical block are conical surfaces, a movable conical block is arranged between the two self-locking conical blocks, a threaded through hole is vertically formed in the center position of the movable conical block, the outer conical surface of the movable conical block is slidably connected with the inner conical surface of each self-locking conical block, the front end surface and the rear end surface of each movable conical block are slidably connected with the sliding through groove, a tension spring is horizontally arranged above the movable conical block, and two ends of each tension spring are fixedly connected with the two self-locking conical blocks respectively, the utility model discloses a taper block's installation, including screw rod, lifting chain, upper conical ring, lower conical ring, the screw rod has a screw rod to remove the screw through-hole internal transmission spiro union of awl piece, the top of screw rod with lifting column swivelling joint, the bottom of screw rod is passed behind the lifting column and rotatory hand wheel fixed connection, it still includes the lifting chain subassembly, the lifting chain subassembly includes the lifting chain, the both ends of lifting chain swivelling joint respectively have last conical ring and lower conical ring, go up the tapering of the interior conical hole of conical ring down the tapering of the interior conical hole of conical ring all with the tapering phase-match of the outer conical surface of auto-lock awl piece go up the conical ring with it has the installation opening to open down on the conical ring, the width of installation opening is greater than the.

Furthermore, a plurality of rubber rings are sequentially arranged on the outer conical surface of the self-locking conical block from top to bottom.

The utility model has the advantages that: the utility model discloses simple structure designs the auto-lock awl piece that can stretch out and draw back on the stock, will go up the taper ring and taper ring cover is outside the auto-lock awl piece down during the use, during hoist and mount heavy object, because gravity reason, goes up the taper ring and taper ring wedge tightly outside the auto-lock awl piece down, realizes the auto-lock of hoist and mount chain and stock, prevents that it from taking place rotatoryly at hoist and mount in-process, and hoist and mount is more stable, reliable, safe, is worth using widely on a large scale.

Description of the drawings:

fig. 1 is a perspective view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is a perspective view of the hoisting chain assembly of the present invention;

in the figure, an anchor rod 1, a roadway top plate 2, a hoisting column 3, a sliding through groove 4, a self-locking conical block 5, a movable conical block 6, a tension spring 7, a screw 8, a rotary hand wheel 9, a hoisting chain 10, an upper conical ring 11, a lower conical ring 12, a rubber ring 13 and an installation notch 14 are arranged.

The specific implementation mode is as follows:

as shown in fig. 1 to 3, a novel hoisting tool for a coal mine tunnel comprises an anchor rod 1 vertically arranged, the top end of the anchor rod 1 is fixedly installed on a tunnel roof 2, a hoisting column 3 is fixedly connected to the bottom end of the anchor rod 1 through threads, the diameter of the hoisting column 3 is larger than that of the anchor rod 1, a sliding through groove 4 is horizontally formed on the hoisting column 3, two self-locking conical blocks 5 are symmetrically and slidably installed in the sliding through groove 4, the outer surface and the inner surface of each self-locking conical block 5 are both conical surfaces, a movable conical block 6 is arranged between the two self-locking conical blocks 5, a threaded through hole is vertically formed in the center position of the movable conical block 6, the outer conical surface of the movable conical block 6 is slidably connected with the inner conical surface of the self-locking conical block 5, and the front and rear end surfaces of the movable conical block 6 are slidably connected with the sliding through groove 4, a tension spring 7 is horizontally arranged above the movable conical block 6, two ends of the tension spring 7 are respectively fixedly connected with the two self-locking conical blocks 5, a screw rod 8 is connected in the threaded through hole of the movable conical block 6 in a transmission and screw mode, the top end of the screw rod 8 is rotationally connected with the hoisting column 3, the bottom end of the screw rod 8 is fixedly connected with a rotating hand wheel 9 after penetrating through the hoisting column 3, the hoisting device also comprises a hoisting chain component, the hoisting chain component comprises a hoisting chain 10, two ends of the hoisting chain 10 are respectively and rotatably connected with an upper conical ring 11 and a lower conical ring 12, the conicity of the inner taper hole of the upper taper ring 11 and the conicity of the inner taper hole of the lower taper ring 12 are both matched with the conicity of the outer conical surface of the self-locking taper block 5, mounting notches 14 are formed in the upper conical ring 11 and the lower conical ring 12, and the width of each mounting notch 14 is larger than the diameter of the anchor rod 1; and a plurality of rubber rings 13 are sequentially arranged on the outer conical surface of the self-locking conical block 5 from top to bottom.

The working principle is as follows: when the hand-pulling type hand-pulling block lifting device works, the lower conical ring 12 and the upper conical ring 11 are sleeved at the position of the movable conical block 6, so that the lifting chain 10 forms a closed lifting ring, the hook of the hand-pulling block is hung on the lifting chain 10 at the moment, the lower conical ring 12 and the upper conical ring 11 are wedged tightly on the self-locking conical block 5 due to gravity during lifting (the rubber ring 13 plays a role in increasing friction force and further preventing the lower conical ring 12, the upper conical ring 11 and the movable conical block 6 from rotating relatively), after the lifting is finished, the hand wheel 9 can be rotated to enable the movable conical block 6 to move downwards, and the self-locking conical block 5 retracts due to the effect of the tension spring 7, so that the wedged state of the lower conical ring 12, the upper conical ring 11 and the movable conical block 6 becomes loose, and the lower conical ring 12 and the upper conical ring 11 can be taken down smoothly.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (2)

1. The utility model provides a novel lifting device for coal mine tunnel, its stock (1) that includes vertical setting, the top fixed mounting of stock (1) is on tunnel roof (2), its characterized in that: the bottom end of the anchor rod (1) is fixedly connected with a hoisting column (3) in a threaded manner, the diameter of the hoisting column (3) is larger than that of the anchor rod (1), the hoisting column (3) is horizontally provided with a sliding through groove (4), two self-locking conical blocks (5) are symmetrically arranged in the sliding through groove (4) in a sliding manner, the outer surface and the inner surface of each self-locking conical block (5) are conical surfaces, a movable conical block (6) is arranged between the two self-locking conical blocks (5), the central position of each movable conical block (6) is vertically provided with a threaded through hole, the outer conical surface of each movable conical block (6) is in sliding connection with the inner conical surface of each self-locking conical block (5), the front and rear two end surfaces of each movable conical block (6) are in sliding connection with the sliding through groove (4), a tension spring (7) is horizontally arranged above each movable conical block (6), two ends of the tension spring (7) are respectively fixedly connected with the two self-locking conical blocks (5), a screw rod (8) is in transmission threaded connection in the threaded through hole of the movable conical block (6), the top end of the screw rod (8) is rotationally connected with the hoisting column (3), the bottom end of the screw rod (8) penetrates through the hoisting column (3) and then is fixedly connected with a rotating hand wheel (9), the hoisting device also comprises a hoisting chain component, the hoisting chain component comprises a hoisting chain (10), two ends of the hoisting chain (10) are respectively and rotatably connected with an upper conical ring (11) and a lower conical ring (12), the conicity of the inner taper hole of the upper taper ring (11) and the conicity of the inner taper hole of the lower taper ring (12) are matched with the conicity of the outer conical surface of the self-locking taper block (5), the upper conical ring (11) and the lower conical ring (12) are provided with mounting notches (14), the width of the installation gap (14) is larger than the diameter of the anchor rod (1).

2. The novel hoisting tool for the coal mine roadway according to claim 1, characterized in that: the outer conical surface of the self-locking conical block (5) is sequentially provided with a plurality of rubber rings (13) from top to bottom.

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