CN205802741U - The anti-skidding clamping device of mine hoist - Google Patents

Abstract

The utility model discloses an anti-slip clamping device for a mine hoist, which comprises a movable splint, a supporting plate installed on the movable splint; a U-shaped steel vertically standing on the supporting plate; a sliding block sliding in the U-shaped steel; a lifting slide The electromagnet of the block; the fixed block hinged with the slider and the U-shaped steel through two support rods; the sliding clamping block connected with the fixed block through the connecting frame and the connecting spring; block; the L-shaped support plate supporting the fixed clamping block; the sliding clamping block can slide on the fixed block through the cylindrical roller bearing; One side of the two support rods and the U-shaped steel is triangular, forming a self-locking. The utility model realizes self-locking by using the friction between the steel wire rope and the brake block when it is descending. It is a self-locking controlled by pure machinery. .

Description

Mine hoist anti-slip clamping device

technical field

The utility model relates to equipment on a mine hoist, in particular to an anti-slip clamping device for a mine hoist.

Background technique

Mine hoist, also known as winch, is a large-scale hoisting machinery. The motor drives the mechanical equipment to drive the wire rope to drive the container up and down in the shaft to complete the transportation task. The mine hoist is gradually developed and evolved from the original water lifting tool. Modern mine hoists have large lifting capacity and high speed, and have developed into fully automatic heavy mining machinery controlled by electronic computers. The hoist is mainly composed of hoisting wire rope, balancing wire rope, hoisting container, derrick, sky wheel, shaft equipment (including tank road, tank beam, etc.). The multi-rope friction hoist uses friction to transmit power when it is working. The steel wire rope is placed on the friction lining of the friction wheel. Pressing against the friction pad creates friction. Under the action of this friction force, the steel wire rope moves together with the friction wheel, so as to realize the lifting or lowering of the container. Because the multi-rope friction hoist has the advantages of high safety, small wire rope diameter, small diameter of the capstan pulley, light equipment weight, low power consumption, and low price, it has developed rapidly. In addition to being used for deep shaft lifting, it can also be used for shallow shaft and inclined shaft lifting. Since the friction hoist transmits power by the friction force between the hoisting wire rope and the friction lining, there is a risk of slipping accidents.

The existing hoist anti-skid device needs to rely on an external power device to brake and clamp the steel wire rope, which has a complex structure and high cost; the brake parts lack corresponding buffer protection measures, and once the brake parts are damaged, there will be a great safety hazard; And the brake parts are not easy to replace, causing inconvenience in operation.

Contents of the invention

Aiming at the problems existing in the above-mentioned prior art, the utility model provides an anti-slip clamping device for a mine hoist, which is purely mechanically controlled and self-locking, does not need to rely on an external power device, has a simple structure, and can satisfy convenient disassembly and assembly operations. Blocks are easy to replace, which greatly saves the cost.

In order to achieve the above object, the technical solution adopted by the utility model is: a mine hoist anti-slip clamping device, including a movable splint, a support plate installed on the movable splint; a U-shaped steel vertically standing on the support plate; The slider sliding in the section steel; the electromagnet for lifting the slider; the fixed block hinged with the U-shaped steel and the slider through the support rod A and the support rod B respectively; the sliding clamping block connected with the fixed block through the connecting frame and the connecting spring; A fixed clamping block that cooperates with the sliding clamping block to clamp the wire rope; an L-shaped support plate that supports the fixed clamping block; the sliding clamping block can slide on the fixed block through a cylindrical roller bearing; The sliding clamping block slides downwards to clamp the steel wire rope under the action of the friction force of the steel wire rope, so that the supporting rod A, the supporting rod B and one side of the U-shaped steel form a triangle, forming self-locking.

Further, the utility model, the lower end of the slider is connected to the U-shaped steel base plate through a tension spring; the upper end of the slider is connected to the electromagnet through a cylindrical rod.

Further in the present invention, the fixed clamping block is connected to the L-shaped support plate through nuts, and the L-shaped support plate is fixed on the movable splint through nuts.

Further in the present invention, reinforcing ribs are arranged between the U-shaped steel and the support plate.

Further, the utility model is welded between the reinforcing rib and the support plate, between the sliding clamping block and the connecting frame, and between the support plate and the U-shaped steel.

Further in the present invention, the rod end of the support rod B is a spherical support frame, and the fixed block and the spherical support frame are connected by a spherical pair.

The utility model realizes self-locking by using the friction between the steel wire rope and the brake block when it is descending, that is, the self-locking is purely mechanically controlled, and solves the defect that the anti-skid device of the existing hoist needs to be braked by an external power device . The tension spring in the U-shaped steel of the utility model can realize fast clamping when elastic deformation occurs, and can also play a buffering role at the same time, so as to achieve the purpose of protecting the U-shaped steel. The utility model uses cylindrical roller bearings to make the sliding clamping block slide downward under the action of friction, and when clamping the steel wire rope, the two support rods and one side of the U-shaped steel form a triangle, thereby forming self-locking, and then the steel wire rope is locked. Clamp tighter. The utility model adopts the connecting frame and the connecting spring to connect the sliding clamping block and the fixed block, so that the sliding clamping block can be fixed. The utility model uses a spherical support frame instead of a hinge connection to prevent the clamping device from shaking back and forth and enhance the stability of the device. The utility model has a simple structure, can satisfy convenient disassembly and assembly operations, and the brake block is convenient to replace, which greatly saves the cost.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the connection schematic diagram of two support frames and U-shaped steel of the utility model;

In the figure: 1. Electromagnet, 2. U-shaped steel, 3. Slider, 4. Reinforcing rib, 5. Nut, 6. Support plate, 7. Movable splint, 8. Tension spring, 9. Support rod A, 10 , hinge A, 11, steel wire rope, 12, cylindrical roller bearing, 13, connecting spring, 14, connecting frame, 15, L-shaped support plate, 16, fixed clamping block, 17, sliding clamping block, 18, fixed block , 19, spherical support frame, 20, support rod B, 21, hinge C, 22, hinge D.

detailed description

The utility model will be further described below in conjunction with accompanying drawing.

As shown in Figure 1 and Figure 2, the utility model is a mine hoist anti-slip clamping device, including U-shaped steel 2, slider 3, support plate 6, movable splint 7, tension spring 8, support rod A9, cylindrical roller Sub-bearing 12, connecting spring 13, connecting frame 14, L-shaped support plate 15, fixed clamping block 16, sliding clamping block 17, fixed block 18. Support plate 6 is fixed on movable splint 7 by nut 5, and U-shaped steel 2 is placed on the support plate 6, and a tension spring 8 is fixed on the bottom plate of U-shaped steel 2, and tension spring 8 in U-shaped steel 2 can realize when elastic deformation takes place. Fast clamping, and at the same time, it can also play a buffering role to achieve the purpose of protecting the U-shaped steel 2. A slider 3 is connected to the tension spring 8, and the slider 3 is connected with the electromagnet 1 through a cylindrical rod; the sliding clamping block 17 is connected with a fixed block 18 through the connecting frame 14 and the connecting spring 13, and the sliding clamping block 17 passes through The cylindrical roller bearing 12 can slide on the fixed block 18; the fixed block 18 is connected to the support rod B20 through the spherical support frame 19, and the other end of the support rod B20 is connected to the slider 3 in the U-shaped steel 2 by the hinge D22, and the fixed block 18 is connected through the hinge A10 Connect the support rod A9, the other end of the support rod A9 is connected with the U-shaped steel 2 bottom plate by the hinge C21; the fixed clamping block 16 is installed on the L-shaped support plate 15, and is used to cooperate with the sliding clamping block 17 to clamp the wire rope, and the L-shaped support Plate 15 is fixed on movable splint 7 by nut.

When the steel wire rope 11 slips, the magnetic force of the electromagnet 1 disappears. Under the action of gravity, the slider 3 moves downward, and the sliding clamping block 17 moves to the lower right to contact the steel wire rope. The roller bearing 12 slides downward on the fixed block 18, and the steel wire rope 11 is clamped by the sliding clamping block 17 and the fixed clamping block 16, and when the steel wire rope is clamped, two support rods and one side of the U-shaped steel 2 are triangular, thereby Form self-locking, and then make the wire rope be clamped tighter. The sliding clamping block 17 and the fixed block 18 are connected with the connecting frame 14 and the connecting spring 13, so that the sliding clamping block 17 is fixed. When the sliding accident was removed, the electromagnet 1 attracted the slider 3 to move upwards along the U-shaped steel 2, so that the fixed block 18 was reset upwards, and then the connecting frame 14, the connecting spring 13, and the sliding clamping block 17 reset under the spring 13 effect.

On the basis of the above structure, the utility model further arranges reinforcing ribs 4 between the U-shaped steel 2 and the support plate 6 . In order to increase the strength of the joint surface between the two, and prevent excessive deformation due to stress, weld between the reinforcing rib 4 and the supporting plate 6, between the sliding clamping block 17 and the connecting frame 14, between the supporting plate 6 and the U-shaped steel 2. The airtightness and watertightness of the welded connection are good, the structural rigidity is also relatively large, and the integrity of the structure is good. The rod end of the support rod B20 is a spherical support frame 19, and the fixed block 18 and the spherical support frame 19 are connected by a spherical pair. The utility model uses a spherical support frame instead of a hinge connection to prevent the clamping device from shaking back and forth and enhance the stability of the device.

Certainly, the above-mentioned embodiments are only preferred solutions of the present invention, and are not limited thereto. On this basis, targeted adjustments can be made according to actual needs, so as to obtain different implementation modes. Since there are many ways of possible realization, it is not necessary to give examples one by one here.

Claims (6)

1. the anti-skidding clamping device of mine hoist, it is characterised in that include ambulatory splint (7), the gripper shoe (6) being installed on ambulatory splint (7)；Vertically stand on the U-shaped steel (2) in gripper shoe (6)；Slide block (3) in the inner slip of U-shaped steel (2)；Promote the electric magnet (1) of slide block (3)；By support bar A(9), support bar B(20) hinged with U-shaped steel (2) and slide block (3) respectively fixed block (18)；Slip clamping block (17) being connected with fixed block (18) by link (14) and connection spring (13)；Block (16) is fixed to clamp with clamping block (17) of sliding is matched for clamping tightly steel wire rope (11)；Support fixes to clamp the L-type gripper shoe (15) of block (16)；

Described clamping block (17) of sliding can be in the upper slip of fixed block (18) by cylinder roller bearing (12)；Slide clamping block (17) slide downward clamping steel wire rope under the effect of friction force of steel rope, make support bar A(9), support bar B(20) and the one side of U-shaped steel (2) triangular in shape, formation self-locking.

The anti-skidding clamping device of mine hoist the most according to claim 1, it is characterised in that described slide block (3) lower end is connected with U-shaped steel (2) base plate by stretching spring (8)；Slide block (3) upper end is connected with electric magnet (1) by a cylindrical bar.

The anti-skidding clamping device of mine hoist the most according to claim 1, it is characterised in that described in fix to clamp block (16) and be connected with L-type gripper shoe (15) by nut, L-type gripper shoe (15) is fixed on ambulatory splint (7) by nut.

The anti-skidding clamping device of mine hoist the most according to claim 1, it is characterised in that be provided with reinforcement (4) between described U-shaped steel (2) and gripper shoe (6).

The anti-skidding clamping device of mine hoist the most according to claim 4, it is characterised in that between described reinforcement (4) with gripper shoe (6), slide clamping block (17) with between link (14), gripper shoe (6) welds between U-shaped steel (2).

The anti-skidding clamping device of elevator the most according to claim 1, it is characterised in that described support bar B(20) rod end is ball-type bracing frame (19), fixed block (18) uses spherical pair to be connected with ball-type bracing frame (19).