CN220393034U

CN220393034U - Emergency braking device for inclined shaft skip

Info

Publication number: CN220393034U
Application number: CN202322119274.XU
Authority: CN
Inventors: 李富伟; 周建; 陈淼; 达昀峰; 贺添一; 周振国; 张洁
Original assignee: Changsha Institute of Mining Research Co Ltd
Current assignee: Changsha Institute of Mining Research Co Ltd
Priority date: 2023-08-08
Filing date: 2023-08-08
Publication date: 2024-01-26
Anticipated expiration: 2033-08-08

Abstract

The utility model discloses an emergency braking device for a skip of an inclined shaft, which comprises a skip, a steel wire rope connected with a skip handle, a traction rope, a heavy hammer assembly, a radial arm, a connecting rod and a braking insertion claw, wherein the steel wire rope is arranged on the skip; the heavy hammer assembly comprises a heavy hammer which is connected to the sliding rod in a sliding way, the heavy hammer is connected with the tail end of the traction rope, and the sliding rod is horizontally fixed at the bottom end of the skip; the upper end of the spiral arm can be connected with the heavy hammer, the middle point of the spiral arm is hinged with the skip, and the lower end of the spiral arm is hinged with the connecting rod; the connecting rod is connected with the brake inserting claw. The device drives the brake insertion claw to carry out emergency braking through each mechanism, so that the risk of equipment damage and casualties caused by out-of-control skip during underground construction is avoided.

Description

Emergency braking device for inclined shaft skip

Technical Field

The utility model belongs to the technical field of mining equipment, and particularly relates to an emergency braking device for a skip of an inclined shaft.

Background

In ore mining, inclined shaft lifting is the primary lifting mode, while skips are the primary containers for inclined shaft lifting. The skip is a container directly loaded with useful minerals, waste stones or gangue, and is divided into two types of inclined shafts and vertical shafts. The inclined shaft skip is divided into a rear-unloading skip and a front-unloading skip according to the unloading method. The front-unloading inclined shaft skip is suitable for inclined shaft lifting with an inclined shaft angle of 20-40 degrees. The existing front-unloading inclined shaft skip is used, under the condition of rope breakage, the skip is completely out of control to quickly slide down along a track, underground is impacted, underground equipment damage and skip damage are caused, casualties are even caused, property loss is caused, mining work progress is affected, and economic benefits and life safety of enterprises are further affected.

Disclosure of Invention

The utility model aims to provide a safe and reliable emergency braking device for a skip of an inclined shaft.

The utility model provides an emergency braking device for a skip of an inclined shaft, which comprises a skip, a steel wire rope connected with a skip handle, a traction rope, a heavy hammer assembly, a radial arm, a connecting rod and a braking insertion claw, wherein the steel wire rope is arranged on the skip; the traction rope and the steel wire rope are arranged side by side, the heavy hammer assembly comprises a heavy hammer which is connected to the sliding rod in a sliding way, the heavy hammer is connected with the tail end of the traction rope, and the sliding rod is horizontally fixed at the bottom end of the skip; the upper end of the spiral arm can be connected with the heavy hammer, the middle point of the spiral arm is hinged with the skip, and the lower end of the spiral arm is hinged with the connecting rod; the connecting rod is connected with the brake inserting claw; the brake insertion claw can be inserted into the rail sleeper at the bottom end of the skip to brake.

In one embodiment of the above device, the tail end of the hauling rope is connected with the heavy hammer after being connected through two groups of pulleys on the skip.

In one embodiment of the above device, a return spring is disposed at a contact position between the upper end of the arm and the weight.

In one embodiment of the device, a fixed rod is hinged to the middle point of the spiral arm, and the fixed rod is fixedly connected with the bottom end of the skip.

In one embodiment of the device, two opposite sliding rails are arranged at the bottom end of the skip, an L-shaped frame is fixed between the two sliding rails through a movable rod, and the movable rod is connected with the sliding rails through pulleys.

In one embodiment of the above device, the bottom end of the L-shaped frame is fixedly connected with a connecting rod; the left side of the connecting rod is hinged with the lower end of the radial arm.

In one embodiment of the device, the two braking insertion claws are H-shaped, clamp the bottom end surface of the skip from two sides and are hinged with the bottom end surface of the skip, and are respectively hinged to the right sides of two pairs of tires of the skip; the two braking insertion claws are respectively hinged with the connecting rod.

In one embodiment of the above device, the bottom end of the brake pin is an acute angle.

The beneficial effects of the utility model are as follows:

the brake insertion claw is driven by each mechanism to carry out emergency braking, so that the risk of equipment damage and casualties caused by out-of-control skip during underground construction is avoided; meanwhile, the device has the advantages of simple structure, stable operation, safety, reliability and convenient use.

Drawings

Fig. 1 is a schematic structural view of an embodiment of the present utility model.

Detailed Description

In the first embodiment, as shown in fig. 1, the emergency braking device for the inclined shaft skip disclosed in the embodiment comprises a skip 1, a steel wire rope 2, a traction rope 3, a heavy hammer 4, a sliding rod 5, a radial arm 6, a link mechanism 7 and a braking insertion claw 8.

The skip 1 is a square bucket, the left side of the skip is provided with a handle, and the bottom end of the skip is provided with a left steel wheel and a right steel wheel.

The steel wire rope 2 and the hauling rope 3 are mixed and arranged side by side, wherein the tail end of the steel wire rope is wound on the handle of the skip 1 to be fixed, and the tail end of the hauling rope is connected with the heavy hammer 4 through pulley switching on the skip.

A slide bar 5 is horizontally fixed at the left side of the bottom end of the skip, and a heavy hammer 4 is arranged on the slide bar in a sliding way.

The radial arm 6 is vertically arranged, the middle point of the radial arm is hinged with a fixed rod, and the fixed rod is fixedly connected with the bottom end of the skip. The left side of the upper end of the rotating arm is connected with a return spring.

The link mechanism 7 comprises an L-shaped frame 71, a link 72 and a movable beam 73, wherein the bottom end of the skip is provided with two opposite sliding rails in the left-right direction, the top end of the L-shaped frame is fixedly provided with a movable rod, and the movable rod is perpendicular to the sliding rails and is connected with the sliding rails through pulleys. The bottom ends of the two L-shaped frames are fixedly connected with the connecting rod. The left side of the connecting rod is hinged with the bottom end of the radial arm 6.

The two braking insertion claws 8 are H-shaped, clamp the bottom end surface of the skip from two sides and are hinged with the bottom end surface of the skip, and are respectively hinged to the right sides of two pairs of steel wheels of the skip. The two braking insertion claws are respectively hinged with the connecting rod. The bottom end of the braking insertion claw is an acute angle, and can fork the sleeper of the steel rail at the bottom end of the skip bucket to make the sleeper brake urgently.

When the skip is pulled by the inclined shaft:

the steel wire rope and the traction rope are both tensioned, and the heavy hammer is pulled to the left side of the sliding rod and does not interfere with the radial arm.

The skip is pulled in the inclined shaft, but when wire rope breaks:

the steel wire rope is broken, the traction rope is loosened, the heavy hammer moves downwards along the sliding rod under the action of gravity, the rotating arm is pressed downwards to drive the connecting rod mechanism to move leftwards, the brake inserting claw falls down to fork the sleeper, and the skip can be braked urgently.

When the skip runs in a gallery, the skip comprises the following parts:

the heavy hammer is perpendicular to the sliding rod under the action of gravity, even if the steel wire rope is loosened, the heavy hammer does not generate a backward movement trend, the connecting rod mechanism is not triggered, and the brake insertion claw is kept in place.

The device has the advantages that the brake insertion claw is driven by each mechanism to carry out emergency braking, so that the risk of equipment damage and casualties caused by out-of-control skip bucket during underground construction is avoided; meanwhile, the device has the advantages of simple structure, stable operation, safety, reliability and convenient use.

The second embodiment is different from the first embodiment in that:

the cross beams of the two pairs of steel wheels of the skip are provided with outward protruding bayonets, and the braking insertion claw is hinged to the bottom of the skip through the hinging seat. When the steel wire rope is broken, the brake inserting claw is driven by the connecting rod mechanism to fork the bayonet of the steel wheel beam, so that the skip can be braked emergently.

Compared with the first embodiment, the emergency braking device has the advantages that the braking insertion claw is inserted into the steel wheel beam, the emergency braking efficiency is higher, and the braking is more stable; meanwhile, the sleeper is not damaged by braking, and the service life of the rail is longer.

Claims

1. The utility model provides an emergency braking device of inclined shaft skip, it includes the wire rope of connecting on skip and the skip handle, its characterized in that: the device also comprises a traction rope, a heavy hammer assembly, a radial arm, a connecting rod and a brake inserting claw;

the traction rope and the steel wire rope are arranged side by side, the heavy hammer assembly comprises a heavy hammer which is connected to the sliding rod in a sliding way, the heavy hammer is connected with the tail end of the traction rope, and the sliding rod is horizontally fixed at the bottom end of the skip; the upper end of the spiral arm can be connected with the heavy hammer, the middle point of the spiral arm is hinged with the skip, and the lower end of the spiral arm is hinged with the connecting rod; the connecting rod is connected with the brake inserting claw; the brake insertion claw can be inserted into the rail sleeper at the bottom end of the skip to brake.

2. The inclined shaft skip emergency brake apparatus of claim 1, wherein: and the tail end of the traction rope is connected with the heavy hammer after being connected through two groups of pulleys on the skip bucket.

3. The inclined shaft skip emergency brake apparatus of claim 1, wherein: and a reset spring is arranged at the contact position of the upper end of the radial arm and the heavy hammer.

4. The inclined shaft skip emergency brake apparatus of claim 1, wherein: the middle point of the spiral arm is hinged with a fixed rod which is fixedly connected with the bottom end of the skip.

5. The inclined shaft skip emergency brake apparatus of claim 1, wherein: the bottom of skip is provided with two opposite slide rails, is fixed with L shape frame through movable rod between two slide rails, and movable rod passes through pulley and slide rail connection.

6. The inclined shaft skip emergency brake apparatus of claim 5, wherein: the bottom end of the L-shaped frame is fixedly connected with the connecting rod; the left side of the connecting rod is hinged with the lower end of the radial arm.

7. The inclined shaft skip emergency brake apparatus of claim 1, wherein: the two braking insertion claws clamp the bottom end surface of the skip from two sides and are hinged with the bottom end surface of the skip, and the two braking insertion claws are respectively hinged to the right sides of two pairs of tires of the skip; the two braking insertion claws are respectively hinged with the connecting rod.

8. The inclined shaft skip emergency brake apparatus of claim 1, wherein: the bottom end of the brake inserting claw is an acute angle.