CN114130456B

CN114130456B - Mining conveyor bulk foreign matter breaker

Info

Publication number: CN114130456B
Application number: CN202111208458.2A
Authority: CN
Inventors: 刘新华; 彭来; 华德正; 郭潇墙; 张晓光; 郝敬宾; 刘晓帆; 周皓; 路和; 刘浩; 王勇; 梁斌
Original assignee: China University of Mining and Technology CUMT
Current assignee: China University of Mining and Technology CUMT
Priority date: 2021-10-18
Filing date: 2021-10-18
Publication date: 2022-08-02
Anticipated expiration: 2041-10-18
Also published as: CN114130456A

Abstract

The invention discloses a crushing device for large foreign matters of a mining conveyor, which comprises a crushing device (1) positioned on the left side of a belt conveyor device (2) and a reciprocating pushing device (3) positioned on the right side of the belt conveyor device (2); the crushing device (1) and the reciprocating pushing device (3) are mutually independent and are arranged correspondingly; the reciprocating pushing device is driven by a low-power servo motor, the power is increased through the speed reducer and the mechanical transmission mechanism, and then the large foreign matters and part of coal blocks are pushed to enter the crushing device, so that the energy consumption is saved.

Description

Mining conveyor bulk foreign matter breaker

Technical Field

The invention relates to a device for crushing large coal foreign matters, in particular to a device for crushing large coal foreign matters of a mine conveyor.

Background

The belt conveyor is an important continuous transportation device in the coal production process. The coal conveying device is safe, reliable and efficient in coal conveying work, is very important for safety of mine operation and improvement of coal production efficiency, but large foreign matters are easy to fall to a belt when the coal conveying device is operated for a long time, so that the belt is longitudinally torn and breaks down, and inevitable loss is caused.

At present, most of large foreign matters in a belt conveyor can be recognized and sorted based on machine vision, but some large foreign matters are not easy to be sorted by a mechanical arm, particularly the large foreign matters deeply buried in coal, so that the large foreign matters are necessarily crushed, and therefore the transportation and the treatment of ore foreign matters are facilitated.

Disclosure of Invention

The invention aims to provide a crushing device for large foreign matters of a mining conveyor, which can efficiently crush the large foreign matters deeply buried in coal.

In order to achieve the purpose, the invention provides the following technical scheme: a crushing device for large foreign matters of a mining conveyor comprises a crushing device positioned on the left side of a belt conveyor device and a reciprocating pushing device positioned on the right side of the belt conveyor device; the crushing device and the reciprocating pushing device are mutually independent and correspondingly arranged;

the crushing device comprises a fixed plate reinforcing rib, a tooth-shaped fixed plate, a baffle, a flywheel, a V-shaped belt, a three-phase alternating current motor, a belt wheel, an eccentric transmission shaft, a crushing base, a connecting rod and a tooth-shaped movable plate; the crushing device comprises a crushing device, a tooth-shaped fixed plate, a tooth-shaped movable plate, a flywheel and a belt wheel, wherein reinforcing ribs of the crushing device are welded on the tooth-shaped fixed plate and are connected with a base of the belt conveyor into a whole, the two sides of the tooth-shaped fixed plate are connected with the baffle through screws, and the tooth-shaped movable plate form a region with a closed periphery;

the reciprocating pushing device comprises a push plate, a reciprocating pushing rod, a connecting rod piece, a sliding block, a swinging rod piece, a rotary rod piece, a sliding bearing, a speed reducer, a servo motor and a base;

the reciprocating pushing device is of a lever multi-connecting-rod structure, a push plate on the reciprocating pushing device is welded on a reciprocating pushing rod, two ends of a connecting rod piece are respectively hinged with the reciprocating pushing rod and a swinging rod piece, a sliding block slides on the swinging rod piece, the swinging rod piece is hinged and fixed on a swinging rod base, one end of the swinging rod piece is hinged with the sliding block, the other end of the swinging rod piece is pinned with a connecting shaft, the tail end of the shaft is arranged in the speed reducer, and the middle section of the shaft is supported by a sliding bearing; the speed reducer and the servo motor are fixed on the transmission base through screws.

The rotary rod piece is powered by the servo motor to do rotary motion, and then the sliding block is driven to slide on the swing rod piece, so that the swing rod piece swings left and right.

The swing rod piece is fixed on the base and swings to form a lever to push the reciprocating push rod to move.

Wherein, displacement sensor is installed at the back of the tooth-shaped fixed plate, and the process of crushing can be monitored through the displacement sensor.

The tooth-shaped fixed plate, the connecting baffle plate and the tooth-shaped movable plate form a funnel-shaped crushing area with the periphery closed.

Compared with the prior art, the invention has the beneficial effects that:

1. the crushing device is externally arranged, so that the disassembly and the assembly are convenient, the tooth-shaped movable plate is driven to vibrate at high frequency through the rotation of the motor, and foreign matters continuously impact the tooth-shaped fixed plate, so that the crushing effect is achieved, the crushing efficiency is high, and a cutter is not needed;

2. the servo motor receives the instruction signal, provides power for the reciprocating push rod device, and can accurately execute the movement of a return stroke; the speed reducer reduces the rotating speed of the servo motor, improves the torque and is beneficial to the power transmission of the transmission mechanism;

the sliding bearing supports the transmission shaft, so that the rotary rod piece performs rotary motion around the shaft to drive the sliding block to slide on the swinging rod piece, the swinging rod piece is fixed on the base, so that the rod piece swings, and the transmission mechanism has quick return characteristic under the action of the four components;

3. the connecting rod can apply larger force to the reciprocating push rod due to the lever action, so that large foreign matters and coal blocks are easy to push; the invention has the advantages of low speed and high power in the advancing process, high speed and low power in the retracting process, smaller power consumption, no leakage pollution of hydraulic oil and the like compared with a hydraulic system.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the crushing apparatus according to the present invention;

FIG. 3 is a schematic structural diagram of the reciprocating pushing device of the present invention.

In the figure: 1. the crushing device comprises a crushing device 101, a fixed plate reinforcing rib 102, a tooth-shaped fixed plate 103, a baffle plate 104, a flywheel 105, a V-shaped belt 106, a three-phase asynchronous motor 107, a belt wheel 108, an eccentric transmission shaft 109, a crushing base 110, a connecting rod 111, a tooth-shaped moving plate 2, a pushing device 301, a pushing plate 302, a reciprocating pushing rod 303, a connecting rod piece 304, a sliding block 305, a swinging rod piece 306, a revolving rod piece 307, a sliding bearing 308, a speed reducer 309, a servo motor 310, a swing rod base 311 and a transmission base.

Detailed Description

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

As shown in fig. 1: the invention provides a crushing device for large foreign matters of a mining conveyor, which comprises a crushing device 1 positioned on the left side of a belt conveyor device 2 and a reciprocating pushing device 3 positioned on the right side of the belt conveyor device 2; the crushing device 1 and the reciprocating pushing device 3 are mutually independent and correspondingly arranged;

as shown in fig. 2: the crushing device 1 comprises a fixed plate reinforcing rib 101, a tooth-shaped fixed plate 102, a baffle 103, a flywheel 104, a V-shaped belt 105, a three-phase alternating current motor 106, a belt wheel 107, an eccentric transmission shaft 108, a crushing base 109, a connecting rod 110 and a tooth-shaped movable plate 111; the reinforcing ribs 101 of the crushing device 1 are welded on a tooth-shaped fixed plate 102 and are connected with the base of the belt conveyor device 2 into a whole, the two sides of the tooth-shaped fixed plate 102 are in screw connection with baffle plates 103 to form a region with a closed periphery with a tooth-shaped movable plate 111, the tooth-shaped movable plate 111 is arranged at the middle section of an eccentric transmission shaft 108, and two ends of the eccentric transmission shaft are respectively provided with a flywheel 104 and a belt wheel 107, so that the tooth-shaped movable plate 111 can continuously apply pressure to large foreign matters to crush the foreign matters, the three-phase asynchronous motor 106 drives the belt wheel 107 to rotate through a V-shaped belt 105, the three-phase asynchronous motor 106 provides power, and the connecting rod 110 is hinged with a crushing base 109;

as shown in fig. 3: the reciprocating pushing device 3 comprises a pushing plate 301, a reciprocating pushing rod 302, a connecting rod member 303, a sliding block 304, a swinging rod member 305, a rotary rod member 306, a sliding bearing 307, a speed reducer 308, a servo motor 309, a swinging rod base 310 and a transmission base 311;

the reciprocating pushing device 3 is of a lever multi-link structure, a pushing plate 301 on the reciprocating pushing device is welded on a reciprocating pushing rod 302, two ends of a connecting rod 303 are respectively hinged with the reciprocating pushing rod 302 and a swinging rod 305, the sliding block 304 slides on the swinging rod 305, the swinging rod 305 is hinged and fixed on a swinging rod base 310, one end of a rotating rod 306 is hinged with the sliding block 304, the other end of the rotating rod is connected with a shaft, the tail end of the shaft is arranged in a speed reducer 308, and the middle section of the rotating rod is supported by a sliding bearing 307; the speed reducer 308 and the servo motor 309 are fixed on the transmission base 311 through screws.

As shown in fig. 3: the rotating rod 306 is powered by the servo motor 309 to rotate, and then drives the sliding block 304 to slide on the swinging rod 305, so that the swinging rod 305 swings left and right.

The swing rod 305 is fixed on the base 310 to swing, forming a lever, and pushing the reciprocating push rod 302 to move.

The displacement sensor is arranged on the back surface of the tooth-shaped fixed plate 102, when a large foreign body is broken, the tooth-shaped fixed plate can be slightly vibrated by displacement, and after the breaking process is finished, the displacement vibration signal disappears, so that the breaking process can be monitored, and accidents can be prevented.

The tooth-shaped fixed plate 102, the connecting baffle plate 103 and the tooth-shaped movable plate 111 form a funnel-shaped crushing area with the periphery closed, so that foreign matters can fall conveniently.

The detection system composed of sensors detects the existence of large foreign bodies, controls the conveyor to decelerate to reach a crushing designated area, and stops.

Pushing the large foreign bodies: the servo motor 309 receives the instruction signal, provides the power of the reciprocating push rod device, and can accurately execute the movement of a return stroke, the speed reducer 308 reduces the rotating speed of the servo motor, improves the torque, and is beneficial to the power transmission of the transmission mechanism, the sliding bearing 307 supports the transmission shaft, so that the rotary rod 306 performs rotary motion around the shaft, and then the sliding block 304 is driven to slide on the swing rod 305, and the swing rod is fixed on the swing rod base 310, so that the swing of the rod is formed, and the transmission mechanism has the quick return characteristic due to the effects of the four components.

On the other hand, the connecting rod 303 can apply larger force to the reciprocating push rod 302 due to the lever action, so that large foreign matters and coal blocks are easy to push; therefore, the speed is low and the power is high in the advancing process, the speed is high and the power is low in the retracting process, and compared with a hydraulic system, the power consumption is lower.

After finishing promoting the foreign matter and getting into breaker 1, start belt conveyor 2, because reciprocal thrust unit 2 has fast back the characteristic, so can withdraw in the short time, and can not exert an influence to the coal cinder in both sides region, improve conveying efficiency.

Crushing large foreign matters: when foreign matters need to be crushed, the three-phase asynchronous motor 106 is connected with a power supply to start working, the V-shaped belt 105 and the belt wheel 107 are driven, the eccentric transmission shaft 108 rotates, the tooth-shaped movable plate 111 is driven to continuously vibrate, and large foreign matters are crushed under the combined action of the tooth-shaped fixed plate 102 and the baffle plate 103; the other end of the eccentric transmission shaft 108 is provided with a flywheel 104, which ensures the smooth operation of the device.

The crushing process can be monitored through a displacement sensor; when the crushing is completed, the power supply of the three-phase asynchronous motor 106 is disconnected.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a mining conveyer bold foreign matter breaker which characterized in that: comprises a crushing device (1) positioned on the left side of a belt conveyor device (2) and a reciprocating pushing device (3) positioned on the right side of the belt conveyor device (2); the crushing device (1) and the reciprocating pushing device (3) are mutually independent and correspondingly arranged;

the crushing device (1) comprises a fixed plate reinforcing rib (101), a tooth-shaped fixed plate (102), a baffle (103), a flywheel (104), a V-shaped belt (105), a three-phase alternating current motor (106), a belt wheel (107), an eccentric transmission shaft (108), a crushing base (109), a connecting rod (110) and a tooth-shaped movable plate (111); reinforcing ribs (101) of the crushing device (1) are welded on a tooth-shaped fixed plate (102) and are connected with a base of a belt conveyor device (2) into a whole, two sides of the tooth-shaped fixed plate (102) are in screw connection with baffle plates (103) to form a region with a closed periphery with a tooth-shaped movable plate (111), the tooth-shaped movable plate (111) is installed at the middle section of an eccentric transmission shaft (108), a flywheel (104) and a belt wheel (107) are installed at two ends of the eccentric transmission shaft respectively, so that the tooth-shaped movable plate (111) can continuously apply pressure to large foreign matters to crush the foreign matters, a three-phase asynchronous motor (106) drives the belt wheel (107) to rotate through a V-shaped belt (105), the three-phase asynchronous motor (106) provides power, and a connecting rod (110) is hinged with the crushing base (109);

the reciprocating pushing device (3) comprises a pushing plate (301), a reciprocating pushing rod (302), a connecting rod piece (303), a sliding block (304), a swinging rod piece (305), a rotary rod piece (306), a sliding bearing (307), a speed reducer (308), a servo motor (309), a swinging rod base (310) and a transmission base (311);

the reciprocating pushing device (3) is of a lever multi-link structure, a pushing plate (301) on the reciprocating pushing device is welded on a reciprocating pushing rod (302), two ends of a connecting rod piece (303) are respectively hinged with the reciprocating pushing rod (302) and a swinging rod piece (305), a sliding block (304) slides on the swinging rod piece (305), the swinging rod piece (305) is hinged and fixed on a swinging rod base (310), one end of a rotating rod piece (306) is hinged with the sliding block (304), the other end of the rotating rod piece is connected with a shaft through a pin, the tail end of the shaft is arranged in a speed reducer (308), and the middle section of the rotating rod piece is supported by a sliding bearing (307); the speed reducer (308) and the servo motor (309) are fixed on the transmission base (311) through screws.

2. The mining conveyor large foreign body crushing device according to claim 1, characterized in that: the rotary rod piece (306) is powered by a servo motor (309) to do rotary motion, and then the sliding block (304) is driven to slide on the swing rod piece (305), so that the swing rod piece (305) swings left and right.

3. The mining conveyor large foreign body crushing device according to claim 2, characterized in that: the swing rod piece (305) is fixed on the base (310) to swing to form a lever to push the reciprocating push rod (302) to move.

4. The mining conveyor large foreign body crushing device according to claim 1, characterized in that: the back of the tooth-shaped fixed plate (102) is provided with a displacement sensor, and the crushing process can be monitored through the displacement sensor.

5. The mining conveyor bulk foreign matter crushing device according to claim 1, characterized in that: the tooth-shaped fixed plate (102), the connecting baffle plate (103) and the tooth-shaped movable plate (111) form a funnel-shaped crushing area with closed periphery.