CN211226142U

CN211226142U - Power-off locking protection device for coal mine hoist

Info

Publication number: CN211226142U
Application number: CN201922481612.8U
Authority: CN
Inventors: 王永锋
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-08-11
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a coal mine lifter power-off lock-up protection device, which comprises a transmission shaft and a bracket, wherein two ends of the transmission shaft are respectively provided with a bracket, the transmission shaft is welded and fixed with the bracket, two sides of the upper end of the transmission shaft are respectively provided with an elastic component, and two elastic components are respectively sleeved on the inner side of the bracket, the electromagnetic mechanism is arranged inside the device, so that the electromagnetic mechanism can upwards support a bearing block under the power-on condition, and the electromagnetic mechanism can lose the action if the power-off condition is met, thereby leading the bearing block to fall down in the bracket, leading a first clamping jaw and a second clamping jaw to fix and stabilize the transmission shaft, the lifting rope is sleeved inside the transmission shaft, the first guide rod and the second guide rod, leading the first guide rod and the second guide rod to move downwards under the action of the bearing block, thereby enabling the lifting ropes to be mutually extruded and not to slide.

Description

Power-off locking protection device for coal mine hoist

Technical Field

The utility model belongs to the technical field of colliery apparatus is relevant, concretely relates to hoist outage lock death protection device for coal mine.

Background

The mine hoist is a working machine in the mine underground and on the ground, and is a large-scale hoisting mechanical device. The mine hoist is mainly composed of a motor, a reducer, a winding drum, a braking system, a depth indicating system, a speed and speed measuring and limiting system, a control system and the like, and is driven by an alternating current or direct current motor.

The existing elevator power-off locking protection device technology has the following problems: the existing power-off locking protection device for the elevator is generally locked by arranging a safety lock when being used, but the stability of the elevator is poor due to the vibration of a mooring rope when the elevator is locked, and the problem of the phenomenon of falling off can occur in serious conditions.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hoist outage lock protection device dies for coal mine to solve the current hoist outage lock protection device that provides among the above-mentioned background art and can appear the problem that stability does not well lead to appearing droing when using.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a hoist outage lock protection device for coal mine, includes transmission shaft and support, the both ends of transmission shaft respectively are provided with a support, the transmission shaft passes through bolt fixed connection with the support, the upper end both sides of transmission shaft respectively are provided with an elastic component, two elastic component cup joints the inboard at the support respectively, elastic component's upper end is provided with first guide bar, the upper end of first guide bar is provided with the second guide bar, the upper end of second guide bar is provided with the cardboard, the upper end of cardboard is provided with the bearing block, bearing block and cardboard welded fastening, both sides the outside table end of support respectively is provided with an electromagnetic mechanism, electromagnetic mechanism and power electric connection.

Preferably, the constitution of transmission shaft is including transfer line, first stopper, gear and second stopper, the transfer line is the rectangular structure of cylinder, the left side of transfer line outside table end is provided with first stopper, first stopper and transfer line welded fastening, the right-hand member of first stopper is provided with the gear, gear and transfer line welded fastening, the right-hand member of gear is provided with the second stopper, second stopper and transfer line welded fastening, the transmission shaft passes through the transfer line and passes through bolt fixed connection with the support.

Preferably, the clamping plate comprises a first clamping jaw, a connecting block, a supporting column and a second clamping jaw, the supporting column is arranged at the lower end of the connecting block, the first clamping jaw is arranged on the left side of the lower end of the supporting column, the second clamping jaw is arranged on the right side of the lower end of the supporting column, and the clamping plate is fixedly welded with the bearing block through the connecting block.

Preferably, the number of the supports is two, the two supports are respectively arranged at the left end and the right end of the first guide rod, and sliding grooves are formed in the two supports.

Preferably, the first limiting block and the second limiting block are identical in size and specification, and both the first limiting block and the second limiting block are of a hexagonal shaft structure.

Preferably, the number of the electromagnetic mechanisms is two, the two electromagnetic mechanisms are respectively arranged at the outer side surface ends of the two ends of the support, and the two electromagnetic mechanisms are electrically connected with the power supply.

Preferably, the elastic component is clamped inside the bracket, and the elastic component can reduce the acting force of the first guide rod.

Preferably, the bearing block is of a rectangular structure, two clamping plates are arranged on two sides of the lower end of the bearing block respectively, and the clamping plates and the bearing block are fixed in a welded mode.

Compared with the prior art, the utility model provides a hoist outage lock dead protection device for coal mine possesses following beneficial effect:

(1) the electromagnetic mechanism is arranged in the equipment, so that the electromagnetic mechanism can upwards support the bearing block under the condition of power-on and keep away from the second guide rod, and if the power is off, the electromagnetic mechanism can lose the function, so that the bearing block falls down in the support, and the transmission shaft is fixed and stabilized by the first clamping jaw and the second clamping jaw;

(2) the utility model discloses in through cup jointing the lifting rope in the inside of transmission shaft, first guide bar and second guide bar, like this in the outage, can be so that move down first guide bar and second guide bar under the effect of bearing block to can make the lifting rope extrude each other, can not appear sliding, solve the problem that current hoist outage lock dead protection device can appear stability and lead to the appearance of droing not good when using.

Drawings

Fig. 1 is a schematic structural view of the power-off lock-up protection device of the elevator of the present invention;

fig. 2 is a schematic structural view of the transmission shaft of the present invention;

FIG. 3 is a schematic view of the structure of the clamping plate of the present invention;

fig. 4 is a schematic structural view of a transmission mechanism of the deadlock protection device of the present invention;

in the figure: 1. a drive shaft; 11. a transmission rod; 12. a first stopper; 13. a gear; 14. a second limiting block; 2. a first guide bar; 3. an elastic component; 4. clamping a plate; 41. a first jaw; 42. connecting blocks; 43. a pillar; 44. a second jaw; 5. a bearing block; 6. a second guide bar; 7. a support; 8. an electromagnetic mechanism.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a coal mine lifter power-off locking protection device comprises a transmission shaft 1 and a bracket 7, wherein two ends of the transmission shaft 1 are respectively provided with the bracket 7, the transmission shaft 1 comprises a transmission rod 11, a first limit block 12, a gear 13 and a second limit block 14, the transmission rod 11 is a cylindrical strip-shaped structure, the first limit block 12 and the second limit block 14 are identical in size and specification, the first limit block 12 and the second limit block 14 are both in a hexagonal shaft structure, the left side of the outer surface end of the transmission rod 11 is provided with the first limit block 12, the first limit block 12 is fixedly welded with the transmission rod 11, the right end of the first limit block 12 is provided with the gear 13, the gear 13 is fixedly welded with the transmission rod 11, so that the stability of the whole structure can be improved, the right end of the gear 13 is provided with the second limit block 14, and the second limit block 14 is fixedly welded,

a coal mine lifter power-off locking protection device comprises a transmission shaft 1 fixedly connected with a bracket 7 through a transmission rod 11 by bolts, the transmission shaft 1 is fixedly connected with the bracket 7 through bolts, two sides of the upper end of the transmission shaft 1 are respectively provided with an elastic component 3, the elastic components 3 are clamped in the bracket 7, so that the applied force can be reduced, the elastic components 3 can reduce the applied force of a first guide rod 2, the two elastic components 3 are respectively sleeved on the inner sides of the bracket 7, the upper end of the elastic component 3 is provided with the first guide rod 2, the upper end of the first guide rod 2 is provided with a second guide rod 6, the upper end of the second guide rod 6 is provided with a clamping plate 4, the upper end of the clamping plate 4 is provided with a bearing block 5, the bearing block 5 is of a rectangular body structure, two sides of the lower end of the bearing block 5 are respectively provided with one clamping plate 4, so that the, the clamping plate 4 is welded and fixed with the bearing block 5, the bearing block 5 is welded and fixed with the clamping plate 4, the clamping plate 4 comprises a first clamping jaw 41, a connecting block 42, a supporting column 43 and a second clamping jaw 44, the lower end of the connecting block 42 is provided with the supporting column 43, so that the connection can be more stable, the left side of the lower end of the supporting column 43 is provided with the first clamping jaw 41, the right side of the lower end of the supporting column 43 is provided with the second clamping jaw 44, the clamping plate 4 is welded and fixed with the bearing block 5 through the connecting block 42, the outer side surface ends of the two side supports 7 are respectively provided with one electromagnetic mechanism 8, the two supports 7 are provided with two electromagnetic mechanisms, so that the better supporting effect can be achieved, the two supports 7 are respectively arranged at the left end and the right end of the first guide rod 2, the inside of the two supports 7 is provided with sliding grooves, the two electromagnetic mechanisms 8 are arranged in total, so that the better, two electromagnetic mechanism 8 and power electric connection, electromagnetic mechanism 8 and power electric connection.

The utility model discloses a theory of operation and use flow: after the utility model is installed, when the device is used, the device is firstly powered on, so that the bearing block 5 can move upwards under the action of the electromagnetic mechanisms 8 on the two sides of the bracket 7, the driving clamping plate 4 can move upwards in the process of moving upwards the bearing block 5, then the lifting rope to be used passes through the inside of the transmission shaft 1, is connected to the inside of the first guide rod 2 and then is led into the inside of the second guide rod 6, so that the material can be better lifted, if the power is off, the electromagnetic mechanism 8 can lose the action, so that the bearing block 5 falls down in the bracket 7, the first guide rod 2 and the second guide rod 6 move downwards, so that the lifting rope can be extruded mutually, the sliding can not occur, and the first limit block 12 and the second limit block 14 in the transmission shaft 1 are fixed and stable by the first clamping claw 41 and the second clamping claw 44, therefore, the equipment is used, the condition that the equipment cannot be well controlled during power failure is avoided, and safety accidents are avoided.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a hoist outage locking protection device for coal mine, includes transmission shaft (1) and support (7), its characterized in that: the utility model discloses a bearing block, including transmission shaft (1), support (7), elastic component (3), two, the upper end both sides of transmission shaft (1) respectively are provided with one elastic component (3), two elastic component (3) cup joint the inboard at support (7) respectively, the upper end of elastic component (3) is provided with first guide bar (2), the upper end of first guide bar (2) is provided with second guide bar (6), the upper end of second guide bar (6) is provided with cardboard (4), the upper end of cardboard (4) is provided with bearing block (5), bearing block (5) and cardboard (4) welded fastening, both sides the outside table end of support (7) respectively is provided with one electromagnetic mechanism (8), electromagnetic mechanism (8) and power electric connection.

2. The coal mine lifter power-off locking protection device as claimed in claim 1, wherein: the constitution of transmission shaft (1) is including transfer line (11), first stopper (12), gear (13) and second stopper (14), transfer line (11) is the rectangular structure of cylinder, the left side of transfer line (11) outside table end is provided with first stopper (12), first stopper (12) and transfer line (11) welded fastening, the right-hand member of first stopper (12) is provided with gear (13), gear (13) and transfer line (11) welded fastening, the right-hand member of gear (13) is provided with second stopper (14), second stopper (14) and transfer line (11) welded fastening, transmission shaft (1) passes through bolt fixed connection through transfer line (11) and support (7).

3. The coal mine lifter power-off locking protection device as claimed in claim 1, wherein: the clamping plate (4) comprises a first clamping jaw (41), a connecting block (42), a support column (43) and a second clamping jaw (44), the support column (43) is arranged at the lower end of the connecting block (42), the first clamping jaw (41) is arranged on the left side of the lower end of the support column (43), the second clamping jaw (44) is arranged on the right side of the lower end of the support column (43), and the clamping plate (4) is fixedly welded with the bearing block (5) through the connecting block (42).

4. The coal mine lifter power-off locking protection device as claimed in claim 1, wherein: the two supports (7) are arranged, the two supports (7) are respectively arranged at the left end and the right end of the first guide rod (2), and sliding grooves are formed in the two supports (7).

5. The coal mine lifter power-off locking protection device as claimed in claim 2, wherein: the size and the specification of the first limiting block (12) and the second limiting block (14) are the same, and the first limiting block (12) and the second limiting block (14) are of a hexagonal shaft structure.

6. The coal mine lifter power-off locking protection device as claimed in claim 1, wherein: electromagnetic mechanism (8) are provided with two altogether, two electromagnetic mechanism (8) set up respectively in the both ends outside table end of support (7), two electromagnetic mechanism (8) and power electric connection.

7. The coal mine lifter power-off locking protection device as claimed in claim 1, wherein: elastic component (3) joint is in the inside of support (7), elastic component (3) can reduce the effort of first guide bar (2).

8. The coal mine lifter power-off locking protection device as claimed in claim 1, wherein: the bearing block (5) is of a rectangular structure, two clamping plates (4) are arranged on two sides of the lower end of the bearing block (5) respectively, and the clamping plates (4) are welded and fixed with the bearing block (5).