CN116139993A

CN116139993A - Square box crusher for coal mining

Info

Publication number: CN116139993A
Application number: CN202211603923.7A
Authority: CN
Inventors: 马驰; 孙启祥; 孙法虎; 朱程; 曹书浩; 郭培全; 肖永飞
Original assignee: Zaozhuang Xinjinshan Intelligent Equipment Co ltd
Current assignee: Zaozhuang Xinjinshan Intelligent Equipment Co ltd
Priority date: 2022-12-13
Filing date: 2022-12-13
Publication date: 2023-05-23

Abstract

The invention discloses a square box crusher for coal mining, and relates to the technical field of crushers; comprises a crushing box, a crushing assembly, a driving assembly and a guiding assembly; the guiding assembly comprises a plurality of groups of primary supporting rods, secondary supporting rods and tertiary supporting rods which are arranged in parallel and connected through universal joints, the secondary supporting rods are arranged above the crushing assembly and are transversely arranged, and one ends of the primary supporting rods and the tertiary supporting rods, which are far away from the secondary supporting rods, are respectively inclined towards the direction far away from the crushing assembly; the three-stage supporting rod is rotationally connected with a connecting seat positioned on the inner wall of the crushing box, the first-stage supporting rod is connected with a transmission gear, an auxiliary gear which is sequentially connected with each transmission gear is rotationally installed on the crushing box, and the auxiliary gear is connected with a first-stage motor. This device can realize guiding when breaking large-scale stone, improves the efficiency of broken large-scale stone, avoids having broken dead angle.

Description

Square box crusher for coal mining

Technical Field

The invention relates to the technical field of crushers, in particular to a square box crusher for coal mining.

Background

The box crusher is also a weighing hammer crusher and a square box crusher, which are advanced technologies at home and abroad, and are manufactured to produce the latest generation of crushing mechanical products after the optimal design on the basis of integrating a common heavy hammer crusher, an impact crusher, a vertical shaft heavy hammer crusher and various mechanical principles of striking and crushing stones by using hammers, thereby changing the method of controlling the size of discharged particles by using grate bars, reducing the abrasion of the hammers in a crushing cavity and prolonging the service life of the hammers. A box crusher is a device that is very suitable for crushing coal stones.

The box crusher can strip stones through a bit, directly crush huge stones into stone fragments, can set up the horizontal branch of multiunit installation above the rotor structure in order to make large-scale stone can be accurate with tup position contact to make large-scale stone stay on the stone between the breakage, be convenient for strip repeatedly to large-scale stone. However, the supporting rod is of an approximately planar structure, the force application direction of the hammer head is always in the same direction, the stone is easy to beat to one side after being reduced, and the hammer head is not easy to beat, and the hammer is continuously used for beating a face when the stone is beaten, so that the condition that follow-up beating is inconvenient easily occurs after the hammer is beaten to a certain degree.

Disclosure of Invention

The invention aims to provide a square box crusher for coal mining, which aims to solve the problems in the background technology. The device can guide the position of the huge stone, so that the stone is always positioned at the position which is easiest to beat, the direction of the stone is adjusted at any time, the beating efficiency is improved, and the overall crushing efficiency is further improved.

In order to achieve the above purpose, the present invention provides the following technical solutions:

a square box crusher for coal mining comprises a crushing box, a crushing assembly, a driving assembly and a guiding assembly; the guide assembly comprises a plurality of groups of primary support rods, secondary support rods and tertiary support rods which are arranged in parallel and connected through universal joints, the secondary support rods are arranged above the crushing assembly and are transversely arranged, and one ends of the primary support rods and the tertiary support rods, which are far away from the secondary support rods, are respectively inclined towards the direction far away from the crushing assembly; the three-stage supporting rod is rotationally connected with a connecting seat positioned on the inner wall of the crushing box, the primary supporting rod is connected with a transmission gear, an auxiliary gear which is sequentially connected with each transmission gear is rotationally arranged on the crushing box, and the auxiliary gear is connected with a primary motor.

As a further scheme of the invention: the crushing box internally mounted has vertical straight sieve board and semi-cylindrical curved sieve board, the one side that the crushing box kept away from straight sieve board opens there is the feed inlet.

As still further aspects of the invention: the straight screen plate is connected with the bent screen plate, and a plurality of groups of through holes are formed in the straight screen plate and the bent screen plate.

As still further aspects of the invention: the crushing assembly is installed on the inner side of the bent screen plate and comprises a crushing shaft which is rotationally connected with the crushing box, a plurality of groups of annular mounting plates are installed on the crushing shaft, and hammerheads of a plurality of groups of protruding mounting plates are rotationally installed between the mounting plates.

As still further aspects of the invention: the vertical positions of the mounting plates are in one-to-one correspondence with the positions of the two-stage supporting rods of each group.

As still further aspects of the invention: the crushing box is characterized in that two ends of the crushing shaft penetrate out of the crushing box to be connected with the grooved wheels, the grooved wheels are connected with the driving assembly, the driving assembly comprises a secondary motor and a belt wheel, the secondary motor is connected with the belt wheel, and the belt wheel is connected with the grooved wheels through a plurality of groups of transmission belts.

As still further aspects of the invention: the crushing bottom of the case is penetrated to be a discharge hole, and a plurality of groups of reinforcing ribs are arranged outside the crushing case.

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

by adopting the coal mining square box crusher, the device is provided with the guide component, the first-stage supporting rod, the second-stage supporting rod and the third-stage supporting rod of the guide component form a trapezoid structure, wherein the second-stage supporting rod is kept horizontal and is embedded between the hammerheads of each group, after a large block of stone is input, the stone is beaten and shifted by the hammerheads, and the stone returns to the area above the second-stage supporting rod again under the action of the trapezoid structure, so that the position of the stone is guided, the stone can be fully contacted with the hammerheads, and the purpose of rapid crushing is achieved;

adopt above-mentioned colliery exploitation square chest breaker, the trapezium structure of this device makes the height that the secondary branch subsided lower, and the tup can contact the distance of stone bigger, and has used drive gear and auxiliary gear cooperation, make all secondary branches can be continuous the syntropy rotation under the effect of universal joint, then the stone that supports through the secondary branch can take place the rotation at this kind of in-process that lasts, constantly change with the face that the tup contacted promptly, make the tup can contact the region of being convenient for beat all the time, improve the efficiency of beating, carry out more efficient breakage.

Drawings

Fig. 1 is a schematic structural view of a square chest crusher for coal mining.

Fig. 2 is a schematic structural view of the external appearance of a coal mining square chest crusher.

Fig. 3 is a schematic diagram of the internal structure of the square chest crusher for coal mining.

Fig. 4 is a schematic structural view of a crushing assembly in a coal mining square chest crusher.

Fig. 5 is a schematic structural view of a guide assembly in a coal mining square chest crusher.

In the figure: 1. a crushing box; 2. a straight screen plate; 3. a through hole; 4. a guide assembly; 5. a primary support rod; 6. a universal joint; 7. a secondary support rod; 8. three-stage supporting rods; 9. a connecting seat; 10. a feed inlet; 11. a crushing assembly; 12. a hammer head; 13. a mounting plate; 14. a crushing shaft; 15. bending the sieve plate; 16. a discharge port; 17. reinforcing ribs; 18. a second-stage motor; 19. a belt wheel; 20. a drive belt; 21. a drive assembly; 22. a sheave; 23. a primary motor; 24. an auxiliary gear; 25. a transmission gear.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1

Referring to fig. 1, 3, 4 and 5, in an embodiment 1 of the present invention, a square chest crusher for coal mining includes a crushing chest 1, a crushing assembly 11, a driving assembly 21 and a guiding assembly 4; the guiding assembly 4 comprises a plurality of groups of primary supporting rods 5, secondary supporting rods 7 and tertiary supporting rods 8 which are arranged in parallel and are connected through universal joints 6, the secondary supporting rods 7 are arranged above the crushing assembly 11 and are transversely arranged, and one ends of the primary supporting rods 5 and the tertiary supporting rods 8, which are far away from the secondary supporting rods 7, are respectively inclined towards the direction far away from the crushing assembly 11; the three-stage supporting rod 8 is rotationally connected with a connecting seat 9 positioned on the inner wall of the crushing box 1, the primary supporting rod 5 penetrates through a connecting transmission gear 25, an auxiliary gear 24 which is sequentially connected with each transmission gear 25 is rotationally arranged on the crushing box 1, and the auxiliary gear 24 is connected with a primary motor 23.

The device uses the guide component 4 installed above the crushing component 11, the guide component 4 is composed of a plurality of groups of trapezoid structures which are installed in parallel, each trapezoid structure is composed of a primary supporting rod 5, a secondary supporting rod 7 and a tertiary supporting rod 8, the primary supporting rod 5, the secondary supporting rod 7 and the tertiary supporting rod 8 are connected through the universal joint 6, rotation can be transmitted, and meanwhile, the secondary supporting rods 7 are always kept in a horizontal state due to the fact that installation positions of two sides are limited. When the stone crusher is used, large stones are thrown from the outside and fall on a plane formed by a plurality of groups of secondary support rods 7, and as the secondary support rods 7 are embedded between the groups of hammers 12, the hammers 12 can beat from the bottom of the stone in the rotating process, and broken stones are peeled off a little by a little. The stone can be pushed to one direction in the hammering process, and the inverted trapezoid structures on the two sides ensure that the stone can return to the area above the secondary supporting rod 7 after being pushed, so that the stone can be ensured to be fully contacted with the hammer head 12 all the time, and dead angles in the crushing process are avoided.

When correcting the position, guide assembly 4 can also promote the stone to rotate, each one-level branch 5 of group connects gradually through drive gear 25 and auxiliary gear 24, and after the one-level motor 23 starts, all one-level branches 5 syntropy rotate, drive each one-level branch 7 syntropy rotation, consequently make the stone that is located second level branch 7 surface also can take place to rotate, constantly change with the contact surface of tup 12, be convenient for abundant beating, improve kibbling efficiency, although behind the universal joint 6 is used, the rotational speed of second grade branch 7 is not at uniform velocity rotation, but the rotational speed of each one-level branch 7 of group keeps unanimously, consequently can not cause mutual interference.

Example 2

Referring to fig. 1 to 5, the main difference between the present embodiment 2 and embodiment 1 is that:

referring to fig. 1 and 3, in embodiment 2 of the present invention, a vertical straight screen plate 2 and a semi-cylindrical curved screen plate 15 are installed in the crushing box 1, and a feed inlet 10 is opened on a side of the crushing box 1 away from the straight screen plate 2. The curved screen deck 15 encloses the crushing assembly 11 at the bottom so that all stones can be crushed sufficiently and the straight screen deck 2 cooperates to increase the filtering area.

Referring to fig. 1 and 3, the straight screen plate 2 is connected to the curved screen plate 15, and multiple groups of through holes 3 are formed in the straight screen plate 2 and the curved screen plate 15. The through holes 3 are used for filtering small stones with qualified sizes.

Referring to fig. 1, 3 and 4, a crushing assembly 11 is mounted on the inner side of the bent screen plate 15, the crushing assembly 11 includes a crushing shaft 14 rotatably connected with the crushing box 1, a plurality of groups of annular mounting plates 13 are mounted on the crushing shaft 14, and a plurality of groups of hammerheads 12 protruding from the mounting plates 13 are rotatably mounted between the mounting plates 13. The crushing assembly 11 drives each group of mounting plates 13 to rotate through the rotation of the crushing shaft 14, so that the hammer heads 12 rotate along with the rotation, and the hammer heads 12 are outwards opened under the action of huge rotational inertia to beat and crush stones.

Referring to fig. 1 and 3, the vertical positions of the mounting plates 13 are in one-to-one correspondence with the positions of the secondary struts 7 of each group. The position of the secondary support rod 7 corresponds to the position of each mounting plate 13, namely, the hammer head 12 can pass through the gap of the secondary support rod 7 to reach the upper side without damaging the secondary support rod 7, so that the hammer head 12 can fully crush the large stone above.

Referring to fig. 2-4, two ends of the crushing shaft 14 penetrate through the crushing box 1 to be connected with a sheave 22, the sheave 22 is connected with a driving assembly 21, the driving assembly 21 comprises a secondary motor 18 and a belt pulley 19, the secondary motor 18 is connected with the belt pulley 19, and the belt pulley 19 is connected with the sheave 22 through a plurality of groups of transmission belts 20. The driving assembly 21 controls the belt wheel 19 through the secondary motor 18, and further drives the grooved wheel 22 to rotate through the transmission belt 20 so as to drive the crushing shaft 14.

Referring to fig. 1 and 3, the bottom of the crushing box 1 is penetrated by a discharge hole 16, and a plurality of groups of reinforcing ribs 17 are installed outside the crushing box 1. The broken little stone passes through the through-hole 3 on straight sieve 2 and the curved sieve 15, directly falls in broken case 1 bottom, directly discharges from the open discharge gate 16 in bottom, and overall structure can be strengthened to strengthening rib 17, carries out the structure that high strength collided continuously under this kind of operating condition of device, can alleviate deformation, promotes stability, increase of service life.

The working principle of the invention is as follows:

the device has used the guide assembly 4 that is located crushing subassembly 11 top, the unit structure of guide assembly 4 comprises the structure of falling trapezoid by one-level branch 5, second grade branch 7 and tertiary branch 8, the guide assembly 4 comprises this group of falling trapezoid structure of multiunit parallel installation simultaneously, and under the effect of universal joint 6, can control all second grade branch 7 syntropy and rotate, in the clearance of each tup 12 of second grade branch 7 embedding, the stone falls on second grade branch 7 during the use, receive the restriction and can get back to this region voluntarily, and can not roll to the dead angle position, can also promote the stone rotation simultaneously, conveniently peel off each region of stone and smash, improve kibbling efficiency. This device can effectually improve the operating condition of breaker when smashing large-scale stone, improves kibbling efficiency, avoids appearing smashing the dead angle.

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 characteristics 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. A square box crusher for coal mining comprises a crushing box, a crushing assembly, a driving assembly and a guiding assembly; the guide assembly is characterized by comprising a plurality of groups of primary support rods, secondary support rods and tertiary support rods which are arranged in parallel and connected through universal joints, wherein the secondary support rods are arranged above the crushing assembly and are transversely arranged, and one ends of the primary support rods and the tertiary support rods, which are far away from the secondary support rods, are respectively inclined towards the direction far away from the crushing assembly; the three-stage supporting rod is rotationally connected with a connecting seat positioned on the inner wall of the crushing box, the primary supporting rod is connected with a transmission gear, an auxiliary gear which is sequentially connected with each transmission gear is rotationally arranged on the crushing box, and the auxiliary gear is connected with a primary motor.

2. The square chest crusher for coal mining according to claim 1, wherein a vertical straight screen plate and a semi-cylindrical bent screen plate are installed in the crushing chest, and a feed inlet is formed in one surface of the crushing chest away from the straight screen plate.

3. The square chest crusher for coal mining according to claim 2, wherein the straight screen plate is connected with the bent screen plate, and a plurality of groups of through holes are formed in each of the straight screen plate and the bent screen plate.

4. The square chest crusher for coal mining according to claim 2, wherein the crushing assembly is mounted on the inner side of the bent screen plate and comprises a crushing shaft rotationally connected with the crushing box, a plurality of groups of annular mounting plates are mounted on the crushing shaft, and hammerheads with a plurality of groups of protruding mounting plates are rotationally mounted between the mounting plates.

5. The mining square chest crusher of claim 4, wherein the vertical position of the mounting plate corresponds one-to-one to the position of each set of secondary struts.

6. The square chest crusher for coal mining according to claim 4, wherein the crushing shaft is provided with two ends penetrating through the crushing chest connecting sheaves, the sheaves are connected with a driving assembly, the driving assembly comprises a secondary motor and a belt wheel, the secondary motor is connected with the belt wheel, and the belt wheel is connected with the sheaves through a plurality of groups of transmission belts.

7. The square chest crusher for coal mining according to claim 1 or 2, wherein the bottom of the crushing chest is provided with a discharge hole in a penetrating mode, and a plurality of groups of reinforcing ribs are arranged outside the crushing chest.