CN220160078U - Four-toothed roll crusher - Google Patents

Abstract

The utility model discloses a four-tooth roller crusher, which comprises a shell for forming a coal block crushing cavity, wherein a coarse tooth roller and a fine tooth roller are sequentially arranged in the crushing cavity from top to bottom, two coarse tooth rollers and fine tooth rollers are symmetrically arranged at the center of the shell, a feeding mechanism is arranged at the top of the shell, two ends of the coarse tooth roller and the fine tooth roller movably penetrate to the outer side of the shell, and movable bearing seats are rotatably connected at two ends of the coarse tooth roller and the opposite angle fine tooth roller. The two driving mechanisms drive the corresponding fine tooth rollers to enable the two fine tooth rollers to relatively operate, the fine tooth rollers and the coarse tooth rollers are driven by the vertical conveying belt to enable the two coarse tooth rollers to relatively operate, the crushing mode is changed from the crushing mode of vertically colliding coal blocks in the crushing cavity to the crushing mode that the coal blocks crush materials under the shearing, stretching and extrusion force actions of the four tooth rollers, heavy hammer heads are not required to be dragged, the two small-power motors are used for driving, the power of the motors is reduced, a large amount of electricity consumption is saved, and the cost is reduced.

Description

Four-toothed roll crusher

Technical Field

The utility model belongs to the technical field of raw coal fine crushing, and particularly relates to a four-toothed roller crusher.

Background

After the raw coal is mined from the ground, only visible gangue is selected, and coal which is not processed. The diameter of the raw coal excavated from the tunnel is larger than 200mm at present, the raw coal is required to be crushed by a raw coal crushing station, and the raw coal can enter the next step of screening and crushing after being crushed.

The structure of the existing raw coal crusher is that a rotor is arranged in the center of the crusher, a hammer head is suspended on a disc of the rotor and moves circularly along with the rotor at a high speed, a single high-power motor (315 KW) is configured to drag a heavy disc and the hammer head, the falling materials are impacted to a tooth-shaped crushing plate by the hammer head rotating at a high speed mainly by utilizing a pure impact collision principle, and the angle of incidence of the materials impacting the crushing plate is close to a right angle due to the fact that the crushing plate is of a special-shaped toothed plate design, however, in the crushing mode of vertically impacting coal blocks, the cost is increased, and the power consumption and accessory loss of the crusher are increased.

Disclosure of Invention

In order to solve the technical problems, the utility model aims to provide the four-toothed roller crusher so as to solve the technical defects that the conventional raw coal crusher adopts a crushing mode of vertically colliding coal blocks, so that the use cost is increased, and the power consumption and accessory loss of the crusher are increased.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a four tooth roller breaker, is including the casing that is used for forming the broken chamber of coal cinder, and its broken intracavity is equipped with thick tooth roller and thin tooth roller from last to down in proper order, thick tooth roller and thin tooth roller all are provided with two with the center department symmetry of casing, the top of casing is equipped with feed mechanism, the both ends of thick tooth roller and thin tooth roller all run through to the outside of casing, wherein thick tooth roller and rather than the thin tooth roller's of diagonal both ends all rotate and are connected with movable bearing seat, movable bearing seat swing joint is on the casing, be equipped with the displacement subassembly that is used for adjusting movable bearing seat horizontal position on the casing, in addition thick tooth roller and rather than the thin tooth roller's of diagonal both ends all rotate and connect fixed bearing seat, fixed bearing seat fixed connection is on the casing, first belt pulley is all installed to thin tooth roller's one end and thick tooth roller's one end, is located two from top to bottom through belt transmission connection between the first belt pulley of homonymy, two thin tooth roller's the other end all is equipped with a actuating mechanism, the surface be equipped with the belt tensioning assembly that is used for adjusting first belt tensioning assembly on the casing.

As the preferable scheme of the utility model, the feeding mechanism comprises a feeding hopper communicated with the top of the shell, two distributing devices are sequentially arranged in the inner cavity of the feeding hopper from top to bottom, and the two distributing devices are respectively arranged on two sides of the inner wall surface of the feeding hopper.

As a further preferable scheme of the utility model, the distributor comprises a side plate which is installed on the side surface of the feed hopper in a penetrating way, wherein a distributing plate is rotationally connected above one side of the side plate, which faces the inner cavity of the feed hopper, one side of the surface of the side plate is fixedly connected with a first screw sleeve, the inner cavity of the first screw sleeve is in threaded connection with a first screw rod, a connecting seat is installed on the distributing plate, and one end of the first screw rod movably penetrates through the inner cavity of the feed hopper and extends to the inner cavity of the connecting seat.

As a preferable scheme of the utility model, the displacement assembly comprises a second screw sleeve fixedly connected to the shell, an inner cavity of the second screw sleeve is in threaded connection with a second screw rod, one end of the second screw rod is in rotary connection with one side of the movable bearing seat, a support is mounted on the shell, and an inner cavity of the support is in threaded connection with a screw rod used for pressing the movable bearing seat.

As a further preferable scheme of the utility model, the top and the bottom of the movable bearing seat are both connected with sliding rails in a sliding manner, and one side of each sliding rail is arranged on the casing.

As a preferable scheme of the utility model, the driving mechanism comprises a motor seat, a motor is arranged at the top of the motor seat, a second belt pulley is arranged at one end of an output shaft of the motor and one end of the fine tooth roller, and two second belt pulleys positioned at the same side are in transmission connection through a belt.

As the preferable scheme of the utility model, the belt tensioning assembly comprises a third screw sleeve fixedly connected to the surface of the shell, a third screw rod is connected to the inner cavity of the third screw sleeve in a threaded manner, one end of the third screw rod is rotatably connected with a support, and a tensioning wheel contacted with a belt on the first belt pulley is arranged in the inner cavity of the support.

As a preferable scheme of the utility model, two observation windows which are arranged up and down are arranged on the front side surface and the rear side surface of the shell surface.

As a preferable scheme of the utility model, two access holes which are arranged up and down are arranged on the left side surface and the right side surface of the shell, and an access door for sealing the access holes is hinged on the shell.

Compared with the prior art, the four-toothed roller crusher provided by the utility model has the following beneficial effects:

1. the two driving mechanisms drive the corresponding fine tooth rollers, so that the two fine tooth rollers are driven by a vertical conveying belt, the two coarse tooth rollers are driven by a vertical conveying belt, the crushing mode is changed from the crushing mode of vertically colliding coal blocks in the crushing cavity to the crushing mode of crushing the coal blocks under the shearing, stretching and extrusion force actions of the four tooth rollers, a heavy hammer head is not required to be dragged, the two small-power motors (75KW+90 KW) are used for driving, the power of the motors is reduced, a large amount of electricity consumption is saved, and the cost is reduced.

2. The distance between the two coarse tooth rollers and the two fine tooth rollers is adjusted through the arrangement of the displacement assembly, so that the granularity of coal briquette breakage is better controlled, and the particle size of the coal briquette is more uniform.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only examples of embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is a schematic view of a partial connection structure according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a displacement assembly according to an embodiment of the present utility model;

fig. 4 is an enlarged schematic view of the structure of the point a in fig. 1.

Reference numerals:

1-casing, 2-feed mechanism, 21-feeder hopper, 22-curb plate, 23-cloth board, 24-first swivel nut, 25-first screw, 26-connecting seat, 3-movable bearing frame, 4-fixed bearing frame, 5-displacement subassembly, 51-second swivel nut, 52-second screw, 53-support, 54-lead screw, 55-slide rail, 6-first belt pulley, 7-actuating mechanism, 71-motor cabinet, 72-motor, 73-second belt pulley, 8-belt tensioning subassembly, 81-third swivel nut, 82-third screw, 83-support, 84-tensioning wheel, 9-observation window, 10-access door.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the following detailed description of the implementation routine of the present utility model is provided with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

In the description of the embodiments of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "inner", "outer", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model.

In the description of the embodiments of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, integrally connected, or detachably connected; may be a communication between the interiors of two elements; either directly or indirectly through intermediaries, the specific meaning of the terms in the embodiments of the utility model will be understood by those skilled in the art in the specific case.

Referring to the accompanying drawings, 1-4, the four-tooth roller crusher comprises a shell 1 for forming a coal block crushing cavity, wherein a coarse tooth roller and a fine tooth roller are sequentially arranged in the crushing cavity from top to bottom, the diameter of the coarse tooth roller is phi 1020mm, the rotating speed of the coarse tooth roller is 315/345r/min, the diameter of the fine tooth roller is phi 1100mm, the rotating speed of the fine tooth roller is 386/426r/min, and the lengths of the coarse tooth roller and the fine tooth roller are 1000mm.

The coarse tooth roller and the fine tooth roller are symmetrically arranged at the center of the machine shell 1, a feeding mechanism 2 is arranged at the top of the machine shell 1, two ends of the coarse tooth roller and the fine tooth roller movably penetrate through the outer side of the machine shell 1, the two ends of the coarse tooth roller and the two ends of the fine tooth roller opposite to the coarse tooth roller are rotatably connected with a movable bearing seat 3 through bearings, the movable bearing seat 3 is movably connected onto the machine shell 1, and a displacement assembly 5 for adjusting the horizontal position of the movable bearing seat 3 is arranged on the machine shell 1.

In addition, the two ends of the coarse tooth roller and the fine tooth roller opposite to the coarse tooth roller are respectively connected with the fixed bearing seat 4 through bearings in a rotating way, the fixed bearing seat 4 is fixedly connected on the shell 1, one end of the fine tooth roller and one end of the coarse tooth roller are respectively provided with the first belt pulley 6, the upper belt pulley 6 and the lower belt pulley 6 which are positioned on the same side are connected through belt transmission, the other ends of the two fine tooth rollers are respectively provided with a driving mechanism 7, the two driving mechanisms 7 are arranged in opposite angles, and the surface of the shell 1 is provided with a belt tensioning assembly 8 for adjusting the belt tightness on the first belt pulley 6.

Referring to fig. 1 and 2, the feeding mechanism 2 includes a feeding hopper 21 connected to the top of the casing 1, two distributors are sequentially disposed in the inner cavity of the feeding hopper 21 from top to bottom, and the two distributors are respectively disposed on two sides of the inner wall surface of the feeding hopper 21, and when coal blocks enter the inner cavity of the casing 1 from the feeding hopper 21, the buffering effect can be achieved on the coal blocks through the side plates 22, so that the coal blocks uniformly fall into the inner cavity of the casing 1.

The distributing device comprises a side plate 22 which is installed on the side surface of the feeding hopper 21 in a penetrating mode, a distributing plate 23 is connected to the upper portion of one side of the inner cavity of the feeding hopper 21 in a rotating mode through a rotating shaft, a first threaded sleeve 24 is fixedly connected to one side of the surface of the side plate 22, a first screw rod 25 is connected to the inner cavity of the first threaded sleeve 24 in a threaded mode, a connecting seat 26 is installed on the distributing plate 23, one end of the first screw rod 25 movably penetrates through the inner cavity of the feeding hopper 21 and extends to the inner cavity of the connecting seat 26, the length of the inner cavity of the casing 1 can be adjusted through rotating the first screw rod 25, and the distributing plate 23 can be pushed to adjust the inclination angle of the distributing plate.

Referring to fig. 1 and 3, the displacement assembly 5 includes a second screw sleeve 51 fixedly connected to the casing 1, an inner cavity of the second screw sleeve 51 is in threaded connection with a second screw rod 52, one end of the second screw rod 52 is in rotational connection with one side of the movable bearing seat 3 through a bearing, a support 53 is installed on the casing 1, an inner cavity of the support 53 is in threaded connection with a screw rod 54 for compressing the movable bearing seat 3, and the movable bearing seat 3 can be driven to horizontally move along the axial direction of the second screw rod 52 by loosening the screw rod 54 and screwing the second screw rod 52, so that the distance between two coarse tooth rollers and two fine tooth rollers can be adjusted; the top and the bottom of the movable bearing seat 3 are both connected with a sliding rail 55 in a sliding manner, one side of the sliding rail 55 is installed on the casing 1, and the movable bearing seat 3 can be guided by the sliding rail 55, so that the movable bearing seat 3 can stably and horizontally move.

Referring to fig. 1, the driving mechanism 7 includes a motor base 71, a motor 72 is installed at the top of the motor base 71, a second belt pulley 73 is installed at one end of an output shaft of the motor 72 and one end of a fine toothed roller, two second belt pulleys 73 located on the same side are connected through belt transmission, the fine toothed roller can be driven to rotate finally by the output shaft of the motor 72 through starting the motor 72, and the coarse toothed roller is driven to rotate synchronously by the fine toothed roller through a first belt pulley 6 and a belt, so that the secondary crushing effect is achieved.

Referring to fig. 4, the belt tensioning assembly 8 includes a third screw sleeve 81 fixedly connected to the surface of the casing 1, a third screw rod 82 is screwed in an inner cavity of the third screw sleeve 81, one end of the third screw rod 82 is rotatably connected with a bracket 83 through a bearing, a tensioning wheel 84 contacting with a belt on the first belt pulley 6 is installed in an inner cavity of the bracket 83, one side of the bracket 83 is slidably connected with the surface of the casing 1 to ensure stability when the bracket 83 moves, and the tensioning wheel 84 can be driven to horizontally move with a central axis of the third screw rod 82 under the action of threads by rotating the third screw rod 82 so as to adjust the pretightening force of the belt on the first belt pulley 6.

Referring to fig. 1, two observation windows 9 are arranged up and down on the front and back sides of the surface of the casing 1, and the situation of the toothed roller in the inner cavity of the casing 1 can be observed by using the observation windows 9.

Referring to fig. 1, two access ports are arranged on the left and right sides of the surface of the casing 1, and an access door 10 for sealing the access ports is hinged on the casing 1, so that the later operation and maintenance of the parts in the inner cavity of the casing 1 can be facilitated through the access ports.

The inlet belt of the crusher is provided with the flowmeter, the crushing capacity of the crusher can be measured rapidly and accurately, the crusher body is provided with the ammeter, and the current data can be monitored on the DCS system of the control center in time to determine whether overload exists. Judging whether the belt runs normally or not according to the current and the belt flow weighing data; the energy conservation and stability are ensured, and finally, the efficient and stable operation of the crusher is ensured, and the design data is achieved.

The working principle of the embodiment of the utility model is as follows:

adjusting the distance between two horizontal toothed rollers: by unscrewing the screw rod 54 and screwing the second screw rod 52, under the action of threads, the second screw rod 52 drives the movable bearing seat 3 to slide on the sliding rail 55, the distance between two horizontal toothed rollers can be adjusted according to the actual discharge granularity requirement, after the adjustment is finished, the third screw rod 82 is screwed, under the action of threads, the third screw rod 82 drives the bracket 83 and the tensioning wheel 84 to move along the axial direction of the third screw rod 82, and the tensioning degree of the belt on the first belt pulley 6 can be correspondingly adjusted according to the distance between the two toothed rollers;

the angle of the cloth plate 23 is adjusted: by rotating the first screw rod 25, under the action of threads, the end part of the first screw rod 25 pushes the connecting seat 26 and the distributing plate 23 to rotate by taking the rotating shaft on the side plate 22 as the center of a circle, so that the angle of the distributing plate 23 can be adjusted according to the actual use requirement;

finely crushing coal blocks: starting the motor 72, the output shaft of the motor 72 drives the fine tooth roller to rotate through the cooperation of the second belt pulley 73 and the belt, the fine tooth roller drives the coarse tooth roller to rotate through the cooperation of the first belt pulley 6 and the belt, and then the four tooth rollers synchronously rotate, after the motor 72 reaches the preset target rotating speed and idles, the coal blocks enter the inner cavity of the shell 1 after being buffered through the distributing plate 23 in the feed hopper 21, the coal blocks are firstly subjected to primary coarse crushing through the coarse tooth roller, the coal blocks with the diameter less than or equal to 300mm are crushed to less than 50mm, the coal blocks with the diameter less than or equal to 50mm are subjected to secondary fine crushing through the fine tooth roller, finally the crushed coal blocks are discharged through gaps among the tooth rollers and enter the blanking pipe to enter the output end belt conveyor, and are conveyed to a coal bin for standby.

While the basic principles of the present utility model have been shown and described, the foregoing is provided by way of illustration of a preferred embodiment of the utility model, and not by way of limitation, the foregoing embodiment and description are merely illustrative of the principles of the utility model, and any modifications, equivalents, improvements or modifications not within the spirit and scope of the utility model should be included within the scope of the utility model.

Claims (6)

1. Four tooth roller breaker, its characterized in that: the device comprises a shell (1) for forming a coal crushing cavity, wherein a coarse tooth roller and a fine tooth roller are sequentially arranged in the crushing cavity from top to bottom, two coarse tooth rollers and fine tooth rollers are symmetrically arranged at the center of the shell (1), a feeding mechanism (2) is arranged at the top of the shell (1), two ends of the coarse tooth roller and the fine tooth roller movably penetrate through the outer side of the shell (1), a movable bearing seat (3) is rotationally connected at two ends of the coarse tooth roller and the fine tooth roller opposite to the coarse tooth roller, the movable bearing seat (3) is movably connected on the shell (1), a displacement assembly (5) for adjusting the horizontal position of the movable bearing seat (3) is arranged on the shell (1), two ends of the coarse tooth roller and two ends of the fine tooth roller opposite to the coarse tooth roller are rotationally connected with a fixed bearing seat (4), one end of the fine tooth roller is fixedly connected on the shell (1), a first belt pulley (6) is rotationally connected with one end of the coarse tooth roller, two first belt pulleys (6) are rotationally connected between two upper belt pulleys and lower belt pulleys (6) which are positioned on the same side, and a tension belt pulley (8) is connected with the surface of the first belt tensioning mechanism (8) through the belt tensioning mechanism;

the feeding mechanism (2) comprises a feeding hopper (21) communicated with the top of the shell (1), two distributing devices are sequentially arranged in the inner cavity of the feeding hopper (21) from top to bottom, and the two distributing devices are respectively arranged on two sides of the inner wall surface of the feeding hopper (21);

the distributor comprises a side plate (22) which is arranged on the side surface of the feed hopper (21) in a penetrating mode, the side plate (22) is connected with a distribution plate (23) in a rotating mode towards the upper portion of one side of the inner cavity of the feed hopper (21), one side of the surface of the side plate (22) is fixedly connected with a first screw sleeve (24), the inner cavity of the first screw sleeve (24) is in threaded connection with a first screw rod (25), a connecting seat (26) is arranged on the distribution plate (23), and one end of the first screw rod (25) movably penetrates through the inner cavity of the feed hopper (21) and extends to the inner cavity of the connecting seat (26);

the displacement assembly (5) comprises a second screw sleeve (51) fixedly connected to the casing (1), a second screw rod (52) is connected with the inner cavity of the second screw sleeve (51) in a threaded mode, one end of the second screw rod (52) is rotatably connected with one side of the movable bearing seat (3), a support (53) is mounted on the casing (1), and a screw rod (54) used for pressing the movable bearing seat (3) is connected with the inner cavity of the support (53) in a threaded mode.

2. The four-toothed roller crusher according to claim 1, characterized in that: the top and the bottom of the movable bearing seat (3) are both in sliding connection with a sliding rail (55), and one side of the sliding rail (55) is arranged on the shell (1).

3. The four-toothed roller crusher according to claim 1, characterized in that: the driving mechanism (7) comprises a motor base (71), a motor (72) is installed at the top of the motor base (71), a second belt pulley (73) is installed at the output shaft of the motor (72) and one end of the fine tooth roller, and the two second belt pulleys (73) located on the same side are connected through belt transmission.

4. The four-toothed roller crusher according to claim 1, characterized in that: the belt tensioning assembly (8) comprises a third threaded sleeve (81) fixedly connected to the surface of the shell (1), a third screw rod (82) is connected with the inner cavity of the third threaded sleeve (81) in a threaded mode, a support (83) is connected with one end of the third screw rod (82) in a rotating mode, and a tensioning wheel (84) in contact with a belt on the first belt pulley (6) is installed in the inner cavity of the support (83).

5. The four-toothed roller crusher according to claim 1, characterized in that: two observation windows (9) which are arranged up and down are arranged on the front side surface and the rear side surface of the shell (1).

6. The four-toothed roller crusher according to claim 1, characterized in that: two access holes which are arranged up and down are arranged on the left side surface and the right side surface of the casing (1), and an access door (10) for sealing the access holes is hinged on the casing (1)