CN108750636B

CN108750636B - Colliery turning conveyor

Info

Publication number: CN108750636B
Application number: CN201810678356.9A
Authority: CN
Inventors: 曹庆宇
Original assignee: MAN SHI GROUP GUANZIGOU COAL CO Ltd
Current assignee: Man Shi Group Guanzigou Coal Co., Ltd.
Priority date: 2018-06-27
Filing date: 2018-06-27
Publication date: 2020-02-14
Anticipated expiration: 2038-06-27
Also published as: CN108750636A

Abstract

The invention relates to a coal mine corner conveying device, which effectively solves the problems of unadjustable conveying angle, large impact, large noise, easy sprinkling and poor equipment universality of the conventional coal mine corner conveying device; the technical scheme includes that the coal briquette crushing device comprises a first disc, wherein a plurality of second discs capable of revolving and rotating are uniformly distributed on the circumference of the first disc, a first flat plate and a second flat plate with adjustable positions are arranged on the outer edge of the first disc, the inner side of each flat plate is attached to the outer edge of the first disc, the included angle between the two flat plates and the connecting line of the circle center of the first disc is adjustable, two first shifting wheels with opposite rotation directions are arranged on the first flat plate, two second shifting wheels with opposite rotation directions are arranged on the second flat plate, a pressing plate is arranged above the flat plates, and when the shifting wheels are clamped by large coal briquettes, the pressing plate can automatically press and crush the coal briquettes; the steering angle of the invention can be adjusted at will, the conveying process is stable, no impact is generated, the noise is low, and the invention has strong practical value.

Description

Colliery turning conveyor

Technical Field

The invention relates to the field of coal mine machinery, in particular to a coal mine corner conveying device.

Background

After coal under a coal mine is mined by a coal mining machine, the coal under the coal mine needs to be transferred to a conveyor belt through a scraper and a transfer conveyor and then conveyed out of the mine; during the conveying process of the conveyor belt, the corner is met inevitably, and the conveying direction of the conveyor belt needs to be changed. Two methods of changing the transport direction of a conveyor belt are currently in common use: firstly, the end parts of an input conveyor belt and an output conveyor belt at the corner are installed in a crossed and overlapped mode, so that the input conveyor belt does not fall onto the output conveyor belt to achieve steering, and the method has the defects that due to the fact that the height difference exists between the two conveyor belts, impact is large, noise is large, the conveyor belts are easy to damage, the moving direction of coal is changed instantly, angular acceleration is large, the transverse load of the conveyor belts is large, and the coal is easy to fall due to inertia forward rushing when the conveying speed is high; secondly, the arc-shaped turning conveyor belt is arranged at the corner and serves as a transition joint, so that the connection between the input conveyor belt and the output conveyor belt is realized.

Therefore, the design of a novel coal mine corner conveying device is a problem to be solved urgently.

Disclosure of Invention

Aiming at the situation, the invention provides a coal mine corner conveying device for overcoming the defects of the prior art, and effectively solves the problems of unadjustable coal mine corner conveying angle, large impact, large noise, easiness in sprinkling and poor equipment universality.

The technical scheme for solving the problem is that the coal mine corner conveying device comprises a vertical driving shaft, wherein a horizontal first disc is arranged on the driving shaft, a plurality of circular grooves which are uniformly distributed on the circumference are formed in the upper disc surface of the first disc, a horizontal second disc is arranged in each circular groove, and the upper surfaces of the plurality of second discs are flush with the upper surface of the first disc; a first gear is sleeved on the driving shaft and does not rotate along with the driving shaft, a second gear is connected below each second disc through a shaft, and the plurality of second gears are meshed with the first gears; the outer edge of the first disc is provided with a first flat plate and a second flat plate, the two flat plates are horizontally arranged, the upper surfaces of the two flat plates are flush with the upper surface of the first disc, the inner side of each flat plate is arc-shaped, the diameter of each flat plate is the same as that of the first disc, the arc-shaped flat plates are attached to the outer edge of the first disc, and the included angle between the connecting lines of the two flat plates and the circle center of the first disc is adjustable; two first shifting wheels are arranged on the upper surface of the first flat plate, the two first shifting wheels are opposite in rotation direction and can shift the coal on the first flat plate onto the first disc; two second shifting wheels are mounted on the upper surface of the second flat plate, the turning directions of the two second shifting wheels are opposite, after the second disk transfers the coal on the first disk from the inner side to the outer side, the two second shifting wheels can shift the coal on the outer side of the first disk onto the second flat plate.

The upper portion of the first flat plate is provided with a pressing plate made of magnetic materials, a fixed block is arranged above the pressing plate, a pressure spring is installed between the pressing plate and the fixed block, a rotating wheel is fixedly installed on a wheel shaft of one of the first shifting wheels, a transverse blind hole is formed in the side wall of the rotating wheel, a pin capable of sliding in the hole and conducting electricity is installed in the blind hole, a tension spring is connected between the pin and the hole bottom of the blind hole, an upper conducting disc and a lower conducting disc are sleeved outside the rotating wheel and coaxially with the rotating wheel, the two conducting discs are installed at an upper interval and a lower interval, an electromagnet is installed on the fixed block, the two conducting discs and the electromagnet pass through a wire access circuit, and the outer end of the pin extends out of the blind hole and then enters.

The steering angle of the invention can be adjusted at will, the conveying process is stable, no impact is generated, the noise is low, and the invention has strong practical value.

Drawings

FIG. 1 is a top view of the present invention.

Fig. 2 is a front cross-sectional view of the present invention.

Fig. 3 is a left side cross-sectional view of the present invention.

Fig. 4 is an enlarged view of a portion a in fig. 2.

Fig. 5 is an enlarged view of a portion B of fig. 2.

Fig. 6 is a right side view at the first plate.

Detailed Description

The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings.

As shown in fig. 1 to 6, the invention comprises a vertical driving shaft 1, a horizontal first disc 2 is arranged on the driving shaft 1, and a plurality of second discs 3 which are parallel to the first disc 2 and can rotate are evenly distributed on the upper disc surface of the first disc 2; a first gear 4 which does not rotate along with the driving shaft 1 is sleeved on the driving shaft 1, a second gear 5 is connected below each second disc 3, and a plurality of second gears 5 are meshed with the first gears 4; a first flat plate 6 and a second flat plate 7 are arranged at the outer edge of the first disc 2, the two flat plates are horizontally arranged, the upper surfaces of the two flat plates are flush with the upper surface of the first disc 2, the inner side of each flat plate is attached to the outer edge of the first disc 2, and the included angle between the two flat plates and the connecting line of the circle centers of the first disc 2 is adjustable; two first poking wheels 8 are arranged on the upper surface of the first flat plate 6, the two first poking wheels 8 are opposite in direction and can poke the coal on the first flat plate 6 onto the first disc 2; two second poking wheels 9 are arranged on the upper surface of the second flat plate 7, the rotation directions of the two second poking wheels 9 are opposite, and the coal on the outer side of the first disc 2 can be poked onto the second flat plate 7;

a pressing plate 15 made of magnetic materials is arranged above the first flat plate 6, a fixed block is arranged above the pressing plate 15, a pressure spring 16 is arranged between the pressing plate 15 and the fixed block, a rotating wheel 17 is fixedly arranged on a wheel shaft of one of the first shifting wheels 8, a transverse blind hole 18 is formed in the side wall of the rotating wheel 17, a pin 19 which can slide in the hole and conduct electricity is arranged in the blind hole 18, a tension spring 20 is connected between the pin 19 and the bottom of the blind hole 18, an upper conducting disc 21 and a lower conducting disc 23 are coaxially sleeved outside the rotating wheel 17, the two conducting discs are arranged at intervals up and down, an electromagnet 24 is arranged on the fixed block, the two conducting discs and the electromagnet 24 are connected into a circuit through conducting wires, the outer end of the pin 19 extends out of the blind hole 18 and then enters between the two conducting discs to connect the two conducting discs, and.

In order to realize the rotation of the two first thumb wheels 8 and the two second thumb wheels 9, wheel shafts of the two first thumb wheels 8 penetrate through the first flat plate 6 and extend to the position below the first flat plate 6, a first friction wheel 10 is installed on the wheel shaft of one first thumb wheel 8, wheel shafts of the two second thumb wheels 9 penetrate through the second flat plate 7 and extend to the position below the second flat plate 7, a second friction wheel 11 is installed on the wheel shaft of one second thumb wheel 9, the plurality of second gears 5 are externally meshed with an outer gear ring 12, the inner circle of the outer gear ring 12 is provided with gear teeth, the outer circle is pasted with a friction plate, and the first friction wheel 10 and the second friction wheel 11 are both pasted with and tightly pressed against the friction plate; the wheel shafts of the two first thumb wheels 8 are respectively provided with a third gear 13, the two third gears 13 are meshed, the wheel shaft of each second thumb wheel 9 is respectively provided with a fourth gear 14, and the two fourth gears 14 are meshed.

In order to realize the axial positioning of the rotating wheel 17, the upper conductive disc 21 and the lower conductive disc 23, the upper section of the wheel shaft of the first thumb wheel 8 is provided with threads, two limiting plates 25 penetrate through the wheel shaft, one limiting plate 25 is positioned above the upper conductive disc 21, the other limiting plate 25 is positioned below the lower conductive disc 23, the outer sides of the two limiting plates 25 are provided with nuts 26, and the two nuts 26 are screwed on the wheel shaft.

In order to ensure that the coal on the first disk 2 can be completely shifted onto the second flat plate 7, the upper disk surface of the first disk 2 is provided with an arc-shaped plate 27, one end of the arc-shaped plate 27 is positioned at the center of the first disk, the other end of the arc-shaped plate 27 extends to the outer wall of the first disk 2 and is fixedly connected with the second flat plate 7 along the rotating direction of the first disk 2, the lower surface of the arc-shaped plate 27 is attached to the upper disk surface of the first disk, and the orientation of the convex surface of the arc-shaped plate 27 is opposite to the rotating direction of the first disk 2.

In order to make the arc plate 27 rotate around the driving shaft 1, the inner end of the arc plate 27 is connected with a vertical shaft sleeve 28, and the shaft sleeve 28 is sleeved on the upper end of the driving shaft 1.

In order to reduce the gap between the two flat plates and the conveyor belt, the outer sides of the two flat plates are respectively provided with an inward sunken arc-shaped groove 29, and a roller of the conveyor belt can extend into the arc-shaped grooves 29.

Vertical supporting plates 30 are mounted on the lower surfaces of the first flat plate 6 and the second flat plate 7, and the lower ends of the supporting plates 30 are fixed on the ground through foundation bolts.

For the convenience of security protection of the device, the lower end of the driving shaft 1 is provided with a horizontal base 31.

The first gear 4 is fixed on the base 31 through a support rod.

In order to enable the pin 19 to smoothly enter between the two conductive discs when sliding outwards, chamfers 22 are arranged on the inner sides of the two conductive discs, and the chamfers 22 on the two conductive discs oppositely form a groove.

The driving shaft 1 of the invention is connected with a driving motor through transmission structures such as gears or belts, when in use, the ground at the corner of the transmission is trimmed and leveled at first, then the device is transported to the corner and the base 31 is flatly placed on the trimmed ground, and the base 31 can be fixed with the ground through foundation bolts so as to ensure the stability of the device in the working process; after the device is installed, the first flat plate 6 is adjusted to the position opposite to the end part of the input conveyor belt, and the second flat plate 7 is adjusted to the position opposite to the end part of the output conveyor belt; the cylinder of input conveyer belt stretches into in the arc 29 of first flat board 6 after the position has been adjusted to make the outer end of first flat board 6 upper surface realize seamless butt joint with the input conveyer belt almost, in the cylinder of output conveyer belt stretches into the arc 29 of first section board of passing through in the same way, thereby make the outer end of second flat board 7 upper surface realize seamless butt joint with the output conveyer belt almost, then fix the backup pad 30 of two flat board below subaerial through rag bolt, so far originally change to the installation and finish.

After the installation, the driving motors of the conveyor belt and the driving shaft 1 can be started, the driving motor drives the driving shaft 1 to rotate through a gear or a belt, the driving shaft 1 drives the first disc 2 to rotate, the first disc 2 drives the plurality of second discs 3 and the plurality of second gears 5 on the first disc to revolve around the driving shaft 1, and as the plurality of second gears 5 are all meshed with the first gear 4, the plurality of second gears 5 can rotate around respective axes while revolving, so that the plurality of second discs 3 are driven to rotate while revolving along with the first disc 2; the rotation of the second gears 5 can drive the outer gear ring 12 on the outer side to rotate in the same direction, the outer gear ring 12 rotates to drive the first friction wheel 10 and the second friction wheel 11 to rotate, the first friction wheel 10 further drives the two first dial wheels 8 to rotate through the two third gears 13, and the second friction wheel 11 further drives the two second dial wheels 9 to rotate through the two fourth gears 14.

The input conveyor belt conveys coal to a first flat plate 6 and then is pushed to a first disc 2 by two first pushing wheels 8, the coal is pushed to the first disc 2 and then rotates along with the first disc 2 and is uniformly spread on the first disc 2 under the action of a plurality of second discs 3 without being accumulated on the outer side or the inner side of the discs, when the coal rotates to a second flat plate 7, the coal on the outer side of the first disc 2 is pushed to a second flat plate 7 by two second pushing wheels 9, meanwhile, the second disc 3 continuously conveys the coal on the inner side of the first disc 2 to the outer side of the first disc 2 and then is pushed to the second flat plate 7 by the second pushing wheels 9, and then the coal on the second flat plate 7 is pushed to an output conveyor belt to be conveyed away by subsequent coal; a small amount of coal remained on the first disc 2 is gradually pushed out to the second flat plate 7 by the arc-shaped plate 27 when moving to the arc-shaped plate 27 along with the first disc 2, so that the coal on the first disc 2 can be completely transferred to the second flat plate 7 and then is conveyed away by the output conveyor belt, and therefore stable steering of the coal is realized.

When the angle of the conveying corner is changed, the anchor bolts above the supporting plate 30 below the second flat plate 7 can be detached, then the second flat plate 7 is moved to a position opposite to the output conveyor belt along the outer edge of the first disc 2, and then the supporting plate 30 is fixed on the ground by the anchor bolts, and as the outer end of the arc-shaped plate 27 is fixedly connected with the second flat plate 7, the arc-shaped plate 27 synchronously rotates around the driving shaft 1 along with the second flat plate 7; similarly, the position of the first plate 6 can be adjusted to adapt to the position change of the input conveyor belt; the corner transmission of various angles can be adapted by adjusting the positions of the two flat plates.

In the normal rotation process of the first thumb wheel 8, the rotating wheel 17 rotates synchronously with the wheel shaft of the first thumb wheel 8, the pin 19 in the blind hole 18 moves outwards under the action of the tension spring 20 due to centrifugal force, the outer end of the pin 19 extends out of the blind hole 18 and enters between the two conductive discs, so that the two conductive discs are connected, the electromagnet 24 is electrified to generate magnetic force, the adsorption pressing plate 15 moves upwards under the action of the compression spring 16 and the dead weight, in the rotation process of the rotating wheel 17 along with the first thumb wheel 8, the pin 19 is always in an extending state to keep the two conductive discs connected at the moment, namely, the continuous electrification of the electromagnet 24 is kept, and the pressing plate 15 is kept at the uppermost position; when the first thumb wheel 8 is clamped by the large coal briquette, the first friction wheel 10 on the wheel shaft of the first thumb wheel 8 slips with the outer gear ring 12, at the moment, because the wheel shaft of the first thumb wheel 8 does not rotate any more, the rotating wheel 17 and the pin 19 do not rotate any more, the centrifugal force disappears, under the action of the tension spring 20, the outer end of the pin 19 is withdrawn from between the two conductive discs and retracted into the blind hole 18, so that the two conductive discs are not connected any more, the electromagnet 24 is powered off and does not adsorb the pressing plate 15 any more, and at the moment, under the action of the self weight of the pressing plate 15 and the elastic force of the pressure spring 16, the pressing plate 15 impacts and; after the coal blocks are crushed, the first thumb wheel 8 starts to rotate, the pin 19 extends out of the blind hole 18 again due to centrifugal force and enters between the two conductive discs to connect the two conductive discs, the electromagnet 24 is electrified to adsorb the pressing plate 15 to the highest position, and the pressing plate 15 automatically downwards crushes the coal blocks again when the first thumb wheel 8 is clamped next time.

The invention has the following remarkable advantages: firstly, in the traditional method of arranging an arc-shaped steering conveyor belt at a corner as a transition joint, the angle is fixed and cannot be adjusted, the arc-shaped angle of the conveyor belt needs to be customized according to the angle of the corner, if the angle of the corner changes, a new steering conveyor belt needs to be replaced, and a roller of the steering conveyor belt is a special-shaped roller similar to a cone, so that the production, the maintenance and the replacement are inconvenient; according to the invention, the first rotary table is used for replacing a roller and a steering conveyor belt, the coal can be steered at the corner by rotating the first rotary table, and the steering at any angle can be realized by adjusting the position of the flat plate on the first rotary table 2; in addition, compared with a method for carrying out corner conveying and turning by adopting two conveyor belts crossed at a certain angle, the invention connects the conveyor belts and the first disc 2 by two flat plates, thereby almost realizing seamless connection, ensuring that the coal conveying process is more stable, and the coal has no height difference, no impact, less noise, difficult scattering, difficult damage to equipment and the conveyor belts, and the turning route is an arc route without sharp turning, thereby avoiding the problems that the coal is changed in the moving direction instantly when the coal falls from the input conveyor belt to the output conveyor belt due to direct crossing of the two conveyor belts, the belt is subjected to transverse load due to overlarge angular acceleration, and the coal is easy to scatter when the conveying speed is larger; therefore, the invention has obvious advantages compared with two traditional corner conveying modes.

In addition, the second disk 3 revolving and rotating is arranged on the first disk 2, so that the coal is uniformly scattered on the first disk 2, is not accumulated and is not scattered, and the pressing plate 15 is arranged above the first plate 6, so that the large coal blocks can be automatically crushed to prevent the large coal blocks from being stuck, and the conveying process can be smoothly carried out.

In conclusion, the steering angle of the invention can be adjusted at will, the conveying process is stable, no impact is generated, the noise is low, and the invention has strong practical value.

Claims

1. A coal mine corner conveying device comprises a vertical driving shaft (1), and is characterized in that a horizontal first disc (2) is arranged on the driving shaft (1), and a plurality of second discs (3) which are parallel to the driving shaft and can rotate are uniformly distributed on the upper disc surface of the first disc (2) on the circumference; a first gear (4) which does not rotate along with the driving shaft (1) is sleeved on the driving shaft (1), a second gear (5) is connected below each second disc (3), and the plurality of second gears (5) are meshed with the first gear (4); a first flat plate (6) and a second flat plate (7) are arranged at the outer edge of the first disc (2), the two flat plates are horizontally arranged, the upper surfaces of the two flat plates are flush with the upper surface of the first disc (2), the inner side of each flat plate is attached to the outer edge of the first disc (2), and the included angle between the two flat plates and the connecting line of the circle center of the first disc (2) is adjustable; two first poking wheels (8) are mounted on the upper surface of the first flat plate (6), the two first poking wheels (8) are opposite in rotation direction and can poke coal on the first flat plate (6) onto the first disc (2); two second thumb wheels (9) are mounted on the upper surface of the second flat plate (7), the two second thumb wheels (9) are opposite in rotation direction and can be used for poking coal on the outer side of the first disc (2) onto the second flat plate (7);

a pressing plate (15) made of magnetic materials is arranged above the first flat plate (6), a fixed block is arranged above the pressing plate (15), a pressure spring (16) is arranged between the pressing plate (15) and the fixed block, a rotating wheel (17) is fixedly arranged on a wheel shaft of one of the first dial wheels (8), a transverse blind hole (18) is formed in the side wall of the rotating wheel (17), a pin (19) capable of sliding in the hole and conducting electricity is arranged in the blind hole (18), a tension spring (20) is connected between the pin (19) and the bottom of the blind hole (18), an upper conducting disc (21) and a lower conducting disc (23) are sleeved outside the rotating wheel (17) and coaxially with the rotating wheel, the two conducting discs are arranged at intervals up and down, an electromagnet (24) is arranged on the fixed block, the two conducting discs and the electromagnet (24) are connected into a circuit through conducting wires, the outer end of the pin (19) extends out of the blind hole (18) and then enters between the two conducting 24) And (6) electrifying.

2. The coal mine corner conveying device according to claim 1, wherein wheel shafts of the two first shifting wheels (8) penetrate through the first flat plate (6) to extend to the position below the first flat plate (6), a first friction wheel (10) is mounted on the wheel shaft of one first shifting wheel (8), wheel shafts of the two second shifting wheels (9) penetrate through the second flat plate (7) to extend to the position below the second flat plate (7), a second friction wheel (11) is mounted on the wheel shaft of one second shifting wheel (9), the plurality of second gears (5) are externally meshed with an outer gear ring (12), inner circles of the outer gear ring (12) are provided with gear teeth, friction plates are attached to outer circles of the outer gear ring, and the first friction wheel (10) and the second friction wheel (11) are attached to and tightly pressed with the friction plates; a third gear (13) is arranged on the wheel shafts of the two first thumb wheels (8), the two third gears (13) are meshed, a fourth gear (14) is arranged on the wheel shaft of each second thumb wheel (9), and the two fourth gears (14) are meshed.

3. The coal mine corner conveying device according to claim 1, wherein the upper section of the wheel shaft of the first thumb wheel (8) is provided with threads, two limiting plates (25) are arranged on the wheel shaft in a penetrating manner, one limiting plate (25) is positioned above the upper conductive disc (21), the other limiting plate (25) is positioned below the lower conductive disc (23), nuts (26) are arranged on the outer sides of the two limiting plates (25), and the two nuts (26) are arranged on the wheel shaft in a screwing manner.

4. The coal mine corner conveying device according to claim 1, characterized in that an arc plate (27) is installed on the upper disc surface of the first disc (2), one end of the arc plate (27) is located at the center of the first disc, the other end of the arc plate (27) extends to the outer wall of the first disc (2) and is fixedly connected with the second flat plate (7) along the rotating direction of the first disc (2), the lower surface of the arc plate (27) is attached to the upper disc surface of the first disc, and the direction of the convex surface of the arc plate (27) is opposite to the rotating direction of the first disc (2).

5. A coal mine corner conveyor according to claim 4, wherein the inner end of the curved plate (27) is connected with a vertical shaft sleeve (28), and the shaft sleeve (288) is hollow at the upper end of the driving shaft (1).

6. A coal mine corner conveyor according to claim 1, wherein the two plates are provided with inwardly recessed arcuate slots (29) on the outer sides thereof, and the rollers of the conveyor belt are extendable into the arcuate slots (29).

7. The coal mine corner conveying device according to claim 1, wherein vertical supporting plates (30) are mounted on the lower surfaces of the first flat plate (6) and the second flat plate (7), and the lower ends of the supporting plates (30) are fixed on the ground through anchor bolts.

8. A coal mine corner conveyor according to claim 1, characterised in that the lower end of the drive shaft (1) is provided with a horizontal base (31).

9. A coal mine corner conveyor according to claim 1, wherein the first gear (4) is fixed to the base (31) via a support rod.

10. The coal mine corner conveying device according to claim 1, wherein chamfers (22) are formed on the inner sides of the two conductive discs, and the chamfers (22) on the two conductive discs are opposite to form a bevel.