CN211660100U

CN211660100U - Crushing and screening device for coal mining

Info

Publication number: CN211660100U
Application number: CN201920472352.5U
Authority: CN
Inventors: 朱学喜
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-09
Filing date: 2019-04-09
Publication date: 2020-10-13
Anticipated expiration: 2029-04-09

Abstract

The utility model discloses a coal mining is with smashing screening plant, the power distribution box comprises a box body, the upper end of box is equipped with the feed inlet, the inside fixedly connected with of box is located the hopper that leaks of feed inlet below, the below symmetry of hopper that leaks is equipped with two rubbing crusher constructs, two rubbing crusher constructs's below is equipped with the collecting hopper, the below of collecting hopper is equipped with screening mechanism, be equipped with the link gear who is used for the linkage of rubbing crusher structure and screening mechanism on the lateral wall of box, screening mechanism's below is equipped with anti-clogging mechanism, the lower extreme of box is equipped with the feed opening. The utility model discloses can prevent effectively that when the screening is smashed in the colliery, the mineral aggregate card causes the jam in the sieve mesh, improves screening efficiency, and can be with the mineral aggregate that is located not under-leakage on the screen cloth go up the throwing again with crushing roller contact, further smash until the specification is suitable can leak the screen cloth.

Description

Crushing and screening device for coal mining

Technical Field

The utility model relates to a coal mine technical field especially relates to a coal mining is with smashing screening plant.

Background

In the process of coal mining and utilization, coal mine crushing is an important link, a large coal mine for mining is thinned through crushing, the coal mine is convenient to transport and utilize, and after the coal mine crushing process, the crushed coal mine is often required to be screened out to screen out coal blocks which meet the size requirements of crushing and subsequent utilization.

But current crushing and screening device, its mineral aggregate often card causes the jam in the mesh of screen cloth when the screening, and then makes mineral aggregate screening efficiency descend, and through preliminary kibbling mineral aggregate, some size slightly be can not pass through the screen cloth slightly, stop to occupy the position on the screen cloth and further reduce screening efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects in the prior art and providing a crushing and screening device for coal mining.

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

the utility model provides a coal mining is with smashing screening plant, includes the box, the upper end of box is equipped with the feed inlet, the inside fixedly connected with of box is located the hopper that leaks of feed inlet below, the below symmetry of hopper that leaks is equipped with two rubbing crusher constructs, two rubbing crusher constructs's below is equipped with the collecting hopper, the below of collecting hopper is equipped with screening mechanism, be equipped with the link gear who is used for the linkage of rubbing crusher structure and screening mechanism on the lateral wall of box, the below of screening mechanism is equipped with anti-clogging mechanism, the lower extreme of box is equipped with the feed opening.

Preferably, rubbing crusher constructs including setting up the crushing roller in hopper below, the equal fixedly connected with pivot in both ends of crushing roller, equal fixedly connected with L template, two on the both sides lateral wall of box the pivot runs through the box inner wall and rotates respectively to be connected in the vertical portion of two L templates, one of them fixed mounting has the motor on the L template lateral wall, the end of motor output shaft runs through L template and fixed connection in the pivot, two equal fixed cup joints in the pivot have the cam, be equipped with the section on the cam.

Preferably, screening mechanism establishes the installing frame in the collecting hopper under shed outside including the cover, and installing frame and collecting hopper sliding connection, the lower extreme fixedly connected with screen cloth of installing frame, two telescopic links of lower extreme fixedly connected with of installing frame, the lower extreme fixed connection of telescopic link is on the box diapire, the spring has been cup jointed on the telescopic link, the both ends difference fixed connection of spring is on the inner wall of installing frame and box.

Preferably, the link gear includes the fixed cover of fixed connection on the box lateral wall, and the movable rod of the vertical setting of sliding connection in the fixed cover, the upper end and the cam of movable rod offset, on the lower extreme fixedly connected with connecting rod of movable rod, run through on the lateral wall of box and be equipped with the bar groove that corresponds with the connecting rod position, the one end that the movable rod was kept away from to the connecting rod runs through bar groove and fixed connection on the lateral wall of installing frame.

Preferably, prevent that stopper mechanism includes a plurality of dead levers of equidistant setting in the screen cloth below, and the equal fixed connection in both ends of dead lever is on the inner wall of box, the last lateral wall equidistant fixedly connected with ejector pin of a plurality of vertical settings of dead lever.

Preferably, the upper end of the movable rod is provided with a mounting hole, and a ball is arranged in the mounting hole.

The utility model has the advantages that:

through setting up rubbing crusher structure, screening mechanism, will treat that the mineral aggregate pours into the box into through the feed inlet, the mineral aggregate falls to between two crushing rollers through the hopper, can smash through crushing roller, and the mineral aggregate after smashing falls to the installing frame through the collecting hopper to sieve through the screen cloth.

By arranging the linkage mechanism and the anti-blocking mechanism, when the crushing mechanism rotates, the motor drives the rotating shaft to rotate so as to drive the cam to rotate, the cam can press the movable rod to move the movable rod downwards, so as to drive the mounting frame to move downwards, the telescopic rod is contracted to compress the spring, when the mounting frame moves downwards, the ejector rods can be inserted into the meshes of the screen mesh, so that the mineral aggregate clamped in the meshes is ejected upwards, the mineral aggregate is prevented from being blocked in the meshes of the screen mesh, the screening efficiency can be improved, and because the section is arranged on the cam, when the upper end of the movable rod moves to the section along with the rotation of the cam, the movable rod suddenly loses the resisting pressure, the mounting frame rapidly bounces upwards under the elastic force of the spring, the mineral aggregate which is not leaked down and positioned on the screen mesh can be thrown upwards to contact with the crushing roller, and further crushed until the specification is proper and the mineral aggregate can be leaked through the screen mesh.

Drawings

Fig. 1 is a schematic structural view of a crushing and screening device for coal mining according to the present invention;

fig. 2 is the utility model provides a structural schematic diagram of the cam of crushing and screening device for coal mining.

In the figure: 1 box, 2 crushing rollers, 3 feed inlets, 4 hopper, 5L type plate, 6 cam, 7 rotating shaft, 8 movable rod, 9 fixed sleeve, 10 connecting rod, 11 strip-shaped groove, 12 feed inlet, 13 fixed rod, 14 ejector pin, 15 screen, 16 telescopic rod, 17 spring, 18 mounting frame, 19 hopper, 20 motor, 21 section.

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.

Referring to fig. 1-2, a crushing and screening device for coal mining comprises a box body 1, wherein a feed inlet 3 is arranged at the upper end of the box body 1, a hopper 4 is fixedly connected inside the box body 1 and located below the feed inlet 3, two crushing mechanisms are symmetrically arranged below the hopper 4, a hopper collecting 19 is arranged below the two crushing mechanisms, a screening mechanism is arranged below the hopper collecting 19, a linkage mechanism for linking the crushing mechanisms and the screening mechanism is arranged on the side wall of the box body 1, an anti-blocking mechanism is arranged below the screening mechanism, and a feed outlet 12 is arranged at the lower end of the box body 1.

The utility model discloses in, rubbing crusher constructs including setting up at 4 below crushing rollers 2 of hopper, the equal fixedly connected with pivot 7 in both ends of crushing roller 2, equal fixedly connected with L template 5 on the both sides lateral wall of box 1, two pivot 7 run through 1 inner wall of box and rotate respectively and connect in the vertical portion of two L templates 5, fixed mounting has motor 20 on 5 lateral walls of one of them L template, the end of motor 20 output shaft runs through L template 5 and fixed connection is in pivot 7, cam 6 has all been cup jointed to equal fixing in two pivot 7, be equipped with section 21 on cam 6.

Wherein, screening mechanism establishes the installing frame 18 in the open side under the aggregate bin 19 including the cover, and installing frame 18 and aggregate bin 19 sliding connection, the lower extreme fixedly connected with screen cloth 15 of installing frame 18, two telescopic links 16 of the lower extreme fixedly connected with of installing frame 18, the lower extreme fixed connection of telescopic link 16 is on diapire in box 1, spring 17 has been cup jointed on the telescopic link 16, spring 17's both ends difference fixed connection is on the inner wall of installing frame 18 and box 1, telescopic link 16 can move installing frame 18 and play spacing guide effect, spring 17 provides the restoring force that installing frame 18 shifted up.

Wherein, link gear includes fixed cover 9 of fixed connection on 1 lateral wall of box, and sliding connection has the movable rod 8 of vertical setting in fixed cover 9, and the upper end of movable rod 8 offsets with cam 6, and on the lower extreme fixedly connected with connecting rod 10 of movable rod 8, run through on the lateral wall of box 1 and be equipped with the bar groove 11 that corresponds with connecting rod 10 position, the one end that movable rod 8 was kept away from to connecting rod 10 runs through bar groove 11 and fixed connection on the lateral wall of installing frame 18.

Wherein, anti-clogging mechanism includes equidistant a plurality of dead levers 13 of setting in screen cloth 15 below, and the equal fixed connection in both ends of dead lever 13 is on the inner wall of box 1, the ejector pin 14 of a plurality of vertical settings of the equidistant fixedly connected with of last lateral wall of dead lever 13, when installing frame 18 moves down, ejector pin 14 can insert in the mesh of screen cloth 15, and then will block the mineral aggregate jack-up in the mesh, and then avoid the mineral aggregate card to take place to block up in the mesh of screen cloth 15, can improve screening efficiency.

Further, the upper end of the movable rod 8 is provided with a mounting hole, a ball is arranged in the mounting hole, and friction is effectively reduced through the contact of the ball and the cam 6.

When the utility model is used, the motor 20 is started, mineral aggregate to be poured into the box body 1 through the feed inlet 3, the mineral aggregate falls between the two crushing rollers 2 through the hopper 4, and can be crushed through the crushing rollers 2, the crushed mineral aggregate falls into the mounting frame 18 through the hopper 19 and is screened through the screen 15, the screened mineral aggregate is discharged through the discharge opening 12, when the crushing mechanism rotates, the motor 20 drives the rotating shaft 7 to rotate, and further drives the cam 6 to rotate, and can press the movable rod 8 through the cam 6, so that the movable rod 8 moves downwards, and further drives the mounting frame 18 to move downwards, and the telescopic rod 16 contracts, and compresses the spring 17, when the mounting frame 18 moves downwards, the ejector rod 14 can be inserted into meshes of the screen 15, and further pushes up the mineral aggregate clamped in the meshes, and further avoids the mineral aggregate from being blocked in the meshes of the screen 15, and can improve the screening efficiency, and because the cam 6 is provided with the section 21, along with the rotation of the cam 6, when the upper end of the movable rod 8 moves to the section 21, the movable rod 8 suddenly loses the pressure, and under the elastic action of the spring 17, the mounting frame 18 quickly bounces upwards, so that the mineral aggregate which is positioned on the screen 15 and does not leak down can be thrown upwards to contact with the crushing roller 2, and further crushed until the specification is proper and the screen 15 can leak out.

Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a coal mining is with smashing screening plant, includes box (1), its characterized in that, the upper end of box (1) is equipped with feed inlet (3), the hopper (4) that leaks of box (1) inside fixedly connected with below feed inlet (3), the below symmetry of hopper (4) is equipped with two rubbing crusher construct, two rubbing crusher construct's below is equipped with collecting hopper (19), the below of collecting hopper (19) is equipped with screening mechanism, be equipped with the link gear who is used for rubbing crusher construct and screening mechanism linkage on the lateral wall of box (1), screening mechanism's below is equipped with prevents blockking up the mechanism, the lower extreme of box (1) is equipped with feed opening (12).

2. The crushing and screening device for coal mining according to claim 1, wherein the crushing mechanism comprises a crushing roller (2) arranged below the hopper (4), rotating shafts (7) are fixedly connected to both ends of the crushing roller (2), L-shaped plates (5) are fixedly connected to both side walls of the box body (1), the two rotating shafts (7) penetrate through the inner wall of the box body (1) and are respectively and rotatably connected to vertical portions of the two L-shaped plates (5), a motor (20) is fixedly mounted on the side wall of one L-shaped plate (5), the tail end of an output shaft of the motor (20) penetrates through the L-shaped plates (5) and is fixedly connected to the rotating shafts (7), a cam (6) is fixedly sleeved on the two rotating shafts (7), and a section (21) is arranged on the cam (6).

3. The crushing and screening device for coal mining according to claim 2, wherein the screening mechanism comprises a mounting frame (18) which is sleeved outside a lower opening of the aggregate bin (19), the mounting frame (18) is slidably connected with the aggregate bin (19), a screen (15) is fixedly connected to the lower end of the mounting frame (18), two telescopic rods (16) are fixedly connected to the lower end of the mounting frame (18), the lower ends of the telescopic rods (16) are fixedly connected to the inner bottom wall of the box body (1), springs (17) are sleeved on the telescopic rods (16), and two ends of each spring (17) are respectively and fixedly connected to the inner walls of the mounting frame (18) and the box body (1).

4. The crushing and screening device for coal mining according to claim 3, wherein the linkage mechanism comprises a fixed sleeve (9) fixedly connected to the side wall of the box body (1), a vertically arranged movable rod (8) is slidably connected in the fixed sleeve (9), the upper end of the movable rod (8) abuts against the cam (6), the lower end of the movable rod (8) is fixedly connected with a connecting rod (10), a strip-shaped groove (11) corresponding to the connecting rod (10) is arranged on the side wall of the box body (1) in a penetrating manner, and one end, far away from the movable rod (8), of the connecting rod (10) penetrates through the strip-shaped groove (11) and is fixedly connected to the side wall of the mounting frame (18).

5. A crushing and screening device for coal mining according to claim 3, wherein the anti-blocking mechanism comprises a plurality of fixing rods (13) which are arranged at equal intervals below the screen (15), both ends of each fixing rod (13) are fixedly connected to the inner wall of the box body (1), and a plurality of vertically arranged ejector rods (14) are fixedly connected to the upper side wall of each fixing rod (13) at equal intervals.

6. A coal mining crushing and screening device according to claim 4, characterized in that the upper end of the movable rod (8) is provided with a mounting hole, and a ball is arranged in the mounting hole.