CN214087205U

CN214087205U - Emergency braking equipment of mine hoist

Info

Publication number: CN214087205U
Application number: CN202023046056.0U
Authority: CN
Inventors: 徐文敏; 袁振勇; 梁建军
Original assignee: China National Gold Group Jiangxi Jinshan Mining Co ltd
Current assignee: China National Gold Group Jiangxi Jinshan Mining Co ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-08-31
Anticipated expiration: 2030-12-17

Abstract

The utility model belongs to the technical field of hoisting machines, in particular to an emergency braking device of a mine hoisting machine, which aims at the problem that most of the existing emergency braking devices of the mine hoisting machine directly cause a take-up roller to enter a stop state, and the rope is easy to break due to rapid speed change, thereby seriously affecting the service life of the rope and failing to meet the requirements of people, and provides a scheme which comprises a bottom plate, two support columns are fixedly arranged at the bottom of the bottom plate, a double-shaft motor is fixedly arranged at the top of the bottom plate, a rotating shaft is fixedly arranged on an output shaft of the double-shaft motor, and a same rotating rod is rotatably arranged on the two support columns, the utility model has simple structure, can simultaneously decelerate the take-up roller and a steel wire and then stop, thereby avoiding the phenomenon that the goods speed change is too fast, and the rope is broken due to overlarge pulling force caused by the rope, the practicability is strong.

Description

Emergency braking equipment of mine hoist

Technical Field

The utility model relates to a lifting machine technical field especially relates to a mine winder's emergency braking equipment.

Background

In the working process of the mine hoist, a transmission system of the mine hoist is mainly completed by a winding mechanism, but the mechanism takes a steel wire rope as traction force in the working process, once the steel wire rope is broken or the winding machine fails and cannot be braked, the whole hoisting device can freely fall to a low position to cause car body damage accidents.

Most of the existing emergency braking equipment of the mine hoist directly enables the take-up roller to enter a stop state, and due to the fact that the speed is changed quickly, the phenomenon that the rope is broken easily occurs, the service life of the rope is seriously influenced, and the requirements of people cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving present current mine winder's emergency braking equipment most and all directly make and receive the line roller and get into the stop state, because speed variation is fast, lead to cracked phenomenon to appear easily in the rope, serious influence the life of rope, can not satisfy the shortcoming of people's demand, and the mine winder's that proposes emergency braking equipment.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an emergency braking device of a mine hoist comprises a bottom plate, wherein two support columns are fixedly installed at the bottom of the bottom plate, a double-shaft motor is fixedly installed at the top of the bottom plate, a rotating shaft is fixedly installed on an output shaft of the double-shaft motor, the two support columns are rotatably installed with the same rotating rod, two wire take-up rollers are fixedly installed on the rotating rod, two fixed blocks are fixedly installed at the top of the bottom plate, steel wires are respectively connected on the two wire take-up rollers in a transmission manner, one ends of the two steel wires are fixedly installed with the same transverse plate, two connecting columns are fixedly installed at the bottom of the bottom plate, rotating speed sensors are respectively fixedly installed at the tops of the two wire take-up rollers, connecting rods are respectively rotatably installed on the two support columns, a connecting plate is fixedly installed at the other side of each support column, and two connecting blocks are connected on the connecting rods in a threaded manner, the two connecting blocks are fixedly provided with vertical plates, one side of each vertical plate is fixedly provided with a wear-resistant block, and the other side of each supporting column is fixedly provided with a device box.

Preferably, the fixed block is connected with the rotation shaft rotation, two one side fixed mounting of support column has the dead lever, two slidable mounting has the tooth board on the dead lever, two the equal fixed mounting in bottom of tooth board has the friction disk.

Preferably, a gear is fixedly mounted on the rotating shaft, and the gear is meshed with teeth of the tooth plate.

Preferably, fixed mounting has first belt pulley in the axis of rotation, fixed mounting has the second belt pulley on the connecting rod, the same belt of transmission connection on first belt pulley and the second belt pulley.

Preferably, two opposite threads are formed on the two connecting rods, two through holes are formed in the connecting plate, and the vertical plate is slidably mounted in the through holes.

Compared with the prior art, the utility model has the advantages of:

this scheme is owing to set up this scheme and owing to set up the receipts line roller, double-shaft motor, the gear, tooth dental lamina and friction disk, it rotates to drive two axis of rotation through double-shaft motor work, two gear revolve, thereby make tooth dental lamina and friction disk downstream, will contact with the dwang when the friction disk lasts the downstream, press the dwang downwards simultaneously, frictional force between increase and the dwang, frictional force through friction disk and dwang production makes the dwang slow down, thereby the messenger receives the line roller and slows down, avoided the part to receive wearing and tearing, influence life's problem.

Owing to set up connecting rod, connecting block, vertical board and wear-resisting piece, the rotation through the connecting rod drives two connecting blocks, two vertical boards and two wear-resisting pieces and removes to the centre simultaneously, makes two wear-resisting pieces carry out the effect of centre gripping to the steel wire line, can make wear-resisting piece and steel wire line keep inseparable laminating to guarantee the frictional force between wear-resisting piece and the steel wire line, avoided the cracked phenomenon to appear in the steel wire line.

The utility model discloses simple structure can slow down simultaneously receipts line roller and steel wire line, stops again, has avoided goods speed variation too fast, and the power of dragging that causes the rope is too big makes the rope cracked phenomenon appear, and the practicality is strong.

Drawings

Fig. 1 is a schematic front view of an emergency braking device of a mine hoist according to the present invention;

fig. 2 is a schematic view of an interior overlooking structure of a device box of an emergency braking device of a mine hoist according to the present invention;

fig. 3 is a schematic structural view of part a of the emergency braking device of the mine hoist according to the present invention.

In the figure: 1. a base plate; 2. a support pillar; 3. a double-shaft motor; 4. a rotating shaft; 5. rotating the rod; 6. a wire take-up roller; 7. a fixed block; 8. a steel wire; 9. a transverse plate; 10. a rotational speed sensor; 11. a connecting rod; 12. a first pulley; 13. a second pulley; 14. a belt; 15. a device cartridge; 16. a gear; 17. a connecting plate; 18. connecting blocks; 19. a vertical plate; 20. a wear-resistant block; 21. a friction disk; 22. a tooth plate.

Detailed Description

The technical solutions in the embodiments will be described clearly and completely with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only a part of the embodiments, but not all embodiments.

Referring to fig. 1-3, an emergency braking device of a mine hoist comprises a base plate 1, two supporting columns 2 are fixedly installed at the bottom of the base plate 1, a double-shaft motor 3 is fixedly installed at the top of the base plate 1, a rotating shaft 4 is fixedly installed on an output shaft of the double-shaft motor 3, a same rotating rod 5 is rotatably installed on the two supporting columns 2, two wire take-up rollers 6 are fixedly installed on the rotating rod 5, two fixing blocks 7 are fixedly installed at the top of the base plate 1, steel wire wires 8 are respectively connected to the two wire take-up rollers 6 in a transmission manner, a same transverse plate 9 is fixedly installed at one end of each of the two steel wire wires 8, two connecting columns are fixedly installed at the bottom of the base plate 1, a rotating speed sensor 10 is fixedly installed at the top of each of the two wire take-up rollers 6, a connecting rod 11 is respectively rotatably installed on the two supporting columns 2, a connecting plate 17 is fixedly installed at the other side of each supporting column 2, and two connecting blocks 18 are connected to the connecting rod 11 through threads, vertical plates 19 are fixedly mounted on the two connecting blocks 18, wear-resistant blocks 20 are fixedly mounted on one sides of the two vertical plates 19, and device boxes 15 are fixedly mounted on the other sides of the two supporting columns 2.

In this embodiment, fixed block 7 rotates with axis of rotation 4 to be connected, and one side fixed mounting of two support columns 2 has the dead lever, and slidable mounting has tooth board 22 on two dead levers, and the equal fixed mounting in bottom of two tooth boards 22 has friction disc 21.

In this embodiment, a gear 16 is fixedly mounted on the rotating shaft 4, and the gear 16 is engaged with the teeth of the tooth plate 22.

In this embodiment, the rotating shaft 4 is fixedly provided with a first belt pulley 12, the connecting rod 11 is fixedly provided with a second belt pulley 13, and the first belt pulley 12 and the second belt pulley 13 are connected with a same belt 14 in a transmission manner.

In this embodiment, two opposite threads are formed on the two connecting rods 11, two through holes are formed on the connecting plate 17, and the vertical plate 19 is slidably mounted in the through holes.

In this embodiment, when the emergency braking device of the elevator is used, the rotation speed of the take-up roller 6 is monitored by the rotation speed sensor 10 with the model of RS110-DS03, when the rotation speed of the take-up roller 6 is abnormal, the rotation speed sensor 10 transmits a signal to the dual-shaft motor 3, the dual-shaft motor 3 operates to drive the two rotating shafts 4 to rotate, and drives the two gears 16 to rotate, so that the tooth plate 22 moves downwards, the friction disc 21 continuously moves downwards to contact with the rotating rod 5, and simultaneously the rotating rod 5 is pressed downwards to increase the friction force between the rotating rod 5 and the friction disc 21, the rotating rod 5 is decelerated by the friction force generated by the friction disc 21 and the rotating rod 5, so that the take-up roller 6 is decelerated, meanwhile, the rotating shaft 4 rotates while driving the first belt pulley 12 to rotate, and then the belt 14 drives the second belt pulley 13 to rotate, and then the connecting rod 11 is driven to rotate, so that the two connecting blocks 18 in threaded connection with the connecting rod 11 drive the vertical plate 19 and the wear-resistant block 20 to move towards the middle, the steel wire 8 is clamped and does not move any more, and finally the take-up roller 6 and the steel wire 8 are stopped, so that the steel wire 8 is prevented from being broken, and safety accidents are reduced.

The above descriptions are only preferred embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present invention, and the technical solutions and the utility model concepts of the present invention are equivalent to, replaced or changed.

Claims

1. The emergency braking equipment of the mine hoist comprises a bottom plate (1) and is characterized in that two support columns (2) are fixedly mounted at the bottom of the bottom plate (1), a double-shaft motor (3) is fixedly mounted at the top of the bottom plate (1), a rotating shaft (4) is fixedly mounted on an output shaft of the double-shaft motor (3), the two support columns (2) are rotatably mounted with a same rotating rod (5), two wire take-up rollers (6) are fixedly mounted on the rotating rod (5), two fixed blocks (7) are fixedly mounted at the top of the bottom plate (1), steel wires (8) are respectively connected on the two wire take-up rollers (6) in a transmission manner, one ends of the two steel wires (8) are fixedly mounted with a same transverse plate (9), two connecting columns are fixedly mounted at the bottom of the bottom plate (1), and a rotating speed sensor (10) is respectively fixedly mounted at the tops of the wire take-up rollers (6), two all rotate on support column (2) and install connecting rod (11), the opposite side fixed mounting of support column (2) has connecting plate (17), threaded connection has two connecting blocks (18), two on connecting rod (11) equal fixed mounting has vertical board (19), two on connecting block (18) one side fixed mounting of vertical board (19) has wear-resisting piece (20), two the equal fixed mounting of opposite side of support column (2) has device box (15).

2. The emergency braking device of a mine hoist as claimed in claim 1, characterized in that the fixed block (7) is rotatably connected to a rotating shaft (4), fixed rods are fixedly mounted on one side of the two supporting columns (2), tooth plates (22) are slidably mounted on the two fixed rods, and friction discs (21) are fixedly mounted at the bottom ends of the two tooth plates (22).

3. Emergency braking device for a mine hoist according to claim 1, characterized in that a toothed wheel (16) is fixedly mounted on the rotary shaft (4), which toothed wheel (16) engages with the teeth of the toothed plate (22).

4. The emergency braking device for a mine hoist according to claim 1, characterized in that a first belt pulley (12) is fixedly mounted on the rotating shaft (4), a second belt pulley (13) is fixedly mounted on the connecting rod (11), and the same belt (14) is in transmission connection with the first belt pulley (12) and the second belt pulley (13).

5. The emergency braking device for a mine hoist as claimed in claim 1, characterized in that two connecting rods (11) are provided with two oppositely directed threads, the connecting plate (17) is provided with two through holes, and the vertical plate (19) is slidably mounted in the through holes.