CN118371295B

CN118371295B - High security breaker

Info

Publication number: CN118371295B
Application number: CN202410637771.5A
Authority: CN
Inventors: 王朋; 张士忠
Original assignee: Chiping Jinjing Wear Resistant Material Co ltd
Current assignee: Chiping Jinjing Wear Resistant Material Co ltd
Priority date: 2024-05-22
Filing date: 2024-05-22
Publication date: 2024-10-29
Anticipated expiration: 2044-05-22
Also published as: CN118371295A

Abstract

The invention discloses a high-safety crusher, which comprises a crusher body, wherein a crushing cavity is arranged in the crusher body, a central rotating assembly is arranged in the crushing cavity, a plurality of hammers are arranged on the central rotating assembly, each hammer comprises a root part and a striking part rotationally connected to the root part, and the striking part can be driven to rotate relative to the root part to replace a striking surface; the high-safety crusher comprises the root part and the beating part which are rotationally connected, when the beating part crushes materials for a long time, the beating part can possibly generate crushing or cracking, however, as the root part and the beating part are not fixed together, the crushing or cracking on the beating part can not influence the rotation of the root part, and after a period of working, the beating part is driven to rotate for a certain angle to replace the beating surface of the beating part, so that the original beating surface is cooled, the recovery and maintenance are convenient, and the probability of the crushing or cracking of the beating part is reduced.

Description

High security breaker

Technical Field

The invention relates to a crushing technology, in particular to a high-safety crusher.

Background

The crusher is a crushing machine for crushing raw ores adopted in the processing process of metal ores and nonmetallic ores into small particles through extrusion, bending and other modes, and is widely applied to the fields of mines, building materials, highways, railways, water conservancy and the like, wherein the crusher is classified according to different working principles and purposes and can be divided into a jaw crusher, a gyratory crusher, a cone crusher, a roller crusher, a hammer crusher, a reaction crusher and the like. The hammer crusher is one of the common types in ore crushing, and is generally composed of a box body, a rotor, a hammer head, a counterattack lining plate, a sieve plate and the like.

If the authorized bulletin number is CN114643102B, the authorized bulletin day is 2023, 05 and 26, the patent application is named as a coarse crushing hammer crusher, which comprises a frame, wherein the frame comprises an upper frame, a front frame, a middle frame and a lower frame, a feeding hole is formed in the left side of the front frame, a slide carriage is fixedly arranged on the inner side wall of the middle frame and positioned at the lower side of the feeding hole, a rotor is rotatably arranged between the lower frame and the inner side wall of the middle frame, a plurality of groups of hammer heads are rotatably arranged on the rotor, a plurality of canopy strips are horizontally arranged on the inner side wall of the middle frame and positioned above the rotor, a front lining plate is arranged on the left side wall of the middle frame, a rear lining plate is arranged on the inner wall of the right side of the middle frame, and a discharging hole is formed in the lower part of the lower frame; the hammer crusher provided by the invention has the advantages of simple structure, low cost and high operation efficiency, meets the requirement of coarse crushing and reduces the investment and operation cost.

The hammer head of the hammer crusher is generally directly arranged on the hammer shaft, the hammer head and the hammer shaft are required to be tightly matched to ensure that the hammer head can stably work in the rotating process, the hammer head can move towards one direction or two directions in forward and reverse directions for a long time to strike materials during working, the striking surface of the hammer head is easy to break or crack, the matching between the hammer head and the hammer shaft can be loosened, and the clamping stagnation or falling probability of the hammer head during rotation is increased.

Disclosure of Invention

The object of the present invention is to provide a high safety crusher, which solves the above-mentioned drawbacks of the prior art.

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

the utility model provides a high security breaker, includes the organism, be provided with the crushing chamber in the organism, the crushing intracavity is provided with the central rotatory subassembly, be provided with a plurality of hammers on the rotatory subassembly of center, the hammer include the root with rotate connect in hit beating portion on the root, hit beating portion can accept the drive in order to rotate relatively the root is in order to change the face of beating.

According to the high-safety crusher, the driving motor is arranged on the outer side wall of the crusher body, and the output shaft of the driving motor is connected with the central rotating assembly.

The high-safety crusher is characterized in that the upper end of the crusher body is provided with the feeding passage, the upper side of the inner wall of the feeding passage is rotatably provided with the shielding plate, and the shielding plate is used for preventing broken material blocks from splashing.

The center rotating assembly comprises a center shaft rotatably arranged in a crushing cavity, a plurality of rotor discs are fixedly connected on the center shaft, a plurality of connecting shafts are fixedly connected between the rotor discs, and hammers are rotatably arranged on the connecting shafts in a one-to-one correspondence manner.

The high-safety crusher is characterized in that an arc-shaped sieve plate is fixedly connected in the crushing cavity, a plurality of arc-shaped through holes are formed in the arc-shaped sieve plate, the arc-shaped sieve plate is positioned on the outer side of the rotor disc, the center line of the arc-shaped sieve plate coincides with the center line of the rotor disc, and the diameter of the arc-shaped sieve plate is larger than that of the rotor disc.

The high-safety crusher is characterized in that a rotating shaft is rotatably arranged in the middle of one end, far away from the connecting shaft, of the root, the striking part is rotatably sleeved on the rotating shaft, a torsion spring is further sleeved on the rotating shaft, and the torsion spring is connected between the rotating shaft and the striking part.

The high-safety crusher is characterized in that the root is internally provided with the installation cavity, the installation cavity is internally provided with the servo motor through the elastic base, and an output shaft of the servo motor is connected with the rotating shaft.

The high-safety crusher is characterized in that a plurality of circumferentially arranged limit holes are formed in one end, far away from the connecting shaft, of the root, a sliding groove is formed in the striking part, a limit shaft is slidably mounted in the sliding groove, the limit shaft is inserted into the limit hole, a cylindrical cavity is further formed in one end, close to the connecting shaft, of the striking part, and a limit spring is connected between the limit shaft and the cylindrical cavity.

The high-safety crusher is characterized in that the spiral piece is fixedly connected to the outer wall of the rotary shaft, which is located in the cylindrical cavity, the lifting block is fixedly connected to the outer wall of the limiting shaft, which is located in the cylindrical cavity, and in an initial state, the lifting block is attached to one end, close to the connecting shaft, of the spiral piece.

In the high-safety crusher, the gap between the adjacent rotor discs is larger than the width of the striking part.

In the technical scheme, the high-safety crusher comprises the root and the beating part rotationally connected to the root, when the beating part crushes materials for a long time, the beating part can crush or crack, however, because the root and the beating part are not fixed together, the crushing or crack on the beating part can not influence the rotation of the root, after a period of working, the beating part is driven to rotate for a certain angle, and the beating surface of the beating part is replaced, so that the original beating surface is cooled, the recovery and maintenance are convenient, the probability of the occurrence of the crushing or crack of the beating part is reduced, and the safety of equipment is maintained.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present application, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

Fig. 1 is a schematic perspective view of a high-safety crusher according to an embodiment of the present invention.

Fig. 2 is a schematic perspective view of the inside of a high-safety crusher according to an embodiment of the present invention.

Fig. 3 is a partial cross-sectional view of a high safety breaker provided by an embodiment of the invention.

Fig. 4 is a cross-sectional view of a central shaft and hammer provided by an embodiment of the present invention.

Fig. 5 is a cross-sectional view of a hammer provided in accordance with another embodiment of the present invention.

Fig. 6 is an enlarged view of a portion at X of fig. 5 in accordance with the present invention.

Fig. 7 is a schematic perspective view of a rotating shaft and a screw member according to another embodiment of the present invention.

Fig. 8 is a schematic perspective view of a root portion according to another embodiment of the present invention.

Fig. 9 is a cross-sectional view of a hammer provided in accordance with yet another embodiment of the present invention.

Fig. 10 is a cross-sectional view of a rotary shaft according to still another embodiment of the present invention.

Reference numerals illustrate:

1. A body; 11. a crushing cavity; 12. a shielding plate; 13. arc-shaped sieve plates; 14. an arc-shaped through opening; 2. a central shaft; 21. a rotor disc; 22. a connecting shaft; 3. a hammer; 31. root part; 311. a mounting cavity; 312. a servo motor; 313. a limiting hole; 32. a striking part; 321. a chute; 322. a limiting shaft; 323. a cylindrical cavity; 324. a limit spring; 33. a rotation shaft; 331. a screw; 332. lifting blocks; 34. a torsion spring; 35. a hydraulic drive assembly; 351. a liquid inlet channel; 352. a cavity; 353. a spiral groove; 354. a driving block; 355. and a restraining bar.

Detailed Description

In order to make the technical scheme of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.

As shown in fig. 1-10, the high-safety crusher provided by the embodiment of the invention comprises a machine body 1, wherein a crushing cavity 11 is arranged in the machine body 1, a central rotating assembly is arranged in the crushing cavity 11, a plurality of hammers 3 are arranged on the central rotating assembly, each hammer 3 comprises a root 31 and a striking part 32 rotatably connected to the root 31, and the striking part 32 can be driven to rotate relative to the root 31 to replace a striking surface.

In this embodiment, the machine body 1 is a metal shell, and the central rotating component is used for driving the hammer 3 to move; the hammer 3 is of a polygonal three-dimensional structure, preferably a rectangular structure with four faces, the striking face of the hammer 3 is related to the rotation direction of the central rotation assembly, and through forward and reverse rotation of the central rotation assembly, two faces of the hammer 3 can be used for striking materials to realize crushing, but all the faces of the hammer 3 cannot be used; in the embodiment, the crushing device also comprises a lining plate arranged on the inner wall of the upper end of the crushing cavity 11, wherein the lining plate is in the prior art and is used for protecting equipment and improving the crushing efficiency; the root 31 and the striking part 32 are both preferably rectangular structures, the cross sections of the root 31 and the striking part 32 are the same, the root 31 is used for being connected with a central rotating component, the striking part 32 can also rotate, the striking part 32 can be directly driven to rotate by an electric driving or hydraulic driving mode during crushing work, the striking part 32 can also be manually driven to rotate after stopping, corresponding schemes can be formulated according to actual conditions, the striking part 32 can be driven to rotate by the electric driving or hydraulic driving mode if the crusher is in a working state for a long time, and the striking part 32 can be manually driven to rotate during stopping if the crusher is in intermittent work; because the hammer 3 is of a split structure and consists of the root 31 and the striking part 32, when the striking part 32 is broken or cracked, the root 31 is not affected, the rotation of the hammer 3 is not affected, the jamming or falling probability of the hammer 3 is reduced, and the safety is improved; in addition, after a period of work, drive beating part 32 rotates certain angle, changes the face of beating part 32, so for original face cooling is convenient for resume and maintenance, has reduced beating part 32 and has appeared broken or cracked probability, has maintained equipment safety.

In still another embodiment of the present invention, a driving motor (not shown in the figure) is installed on the outer side wall of the machine body 1, an output shaft of the driving motor is connected with the central rotating assembly through a transmission mechanism, and the central rotating assembly is driven by the driving motor, which is not described in detail in the prior art, so as to drive the hammer 3 to rotate to crush the material.

In still another embodiment provided by the invention, the upper end of the machine body 1 is provided with a feeding passage, the upper side of the inner wall of the feeding passage is rotatably provided with a shielding plate 12, under the action of self gravity, the shielding plate 12 is vertically downward, when the feeding passage enters materials, the shielding plate 12 is extruded and inclined to enable the materials to pass through, when the broken materials splash, the shielding plate 12 prevents the materials from flying out, so that the safety of equipment and staff is ensured, and the shielding plate 12 is used for preventing broken material blocks from splashing.

In still another embodiment of the present invention, the center rotating assembly includes a central shaft 2 rotatably installed in the crushing cavity, a plurality of rotor discs 21 are fixedly connected to the central shaft 2, a plurality of connecting shafts 22 are fixedly connected between the rotor discs 21, and the hammers 3 are rotatably disposed on the connecting shafts 22 in a one-to-one correspondence manner, that is, the root 31 is rotatably installed on the connecting shafts 22 in this embodiment, so that the central shaft 2 rotates to drive the rotor discs 21 to rotate, and the connecting shafts 22 rotate along with the connecting shafts 22 and drive the hammers 3 to move, and at this time, the hammers 3 can rotate around the connecting shafts 22, so that concentrated stress on the central shaft 2 can be reduced, and direct influence of the hammers 3 on the central shaft 2 is reduced.

In still another embodiment of the present invention, an arc-shaped sieve plate 13 is fixedly connected in the crushing cavity 11, a plurality of arc-shaped through openings 14 are formed in the arc-shaped sieve plate 13, the width of the arc-shaped through openings 14 is the size of the required material, after the material is crushed, the material with the size smaller than the width of the arc-shaped through openings 14 falls out of the arc-shaped through openings 14, the arc-shaped sieve plate 13 is located at the outer side of the rotor disc 21, the center line of the arc-shaped sieve plate 13 coincides with the center line of the rotor disc 21, and the diameter of the arc-shaped sieve plate 13 is larger than the diameter of the rotor disc 21.

Specifically when the crushing, with the material input from the feeding passageway, make the material get into crushing chamber 11 and the hammer 3 contact in motion, strike the crushing through hammer 3 to the material, after the crushing is accomplished, be less than the material of arc opening 14 width and fall out from arc opening 14, be greater than the material of arc opening 14 width and continue to stay on arc screen 13 and be broken once more.

In still another embodiment of the present invention, a rotation shaft 33 is rotatably installed at a middle portion of one end of the root 31, which is far away from the connection shaft 22, the striking part 32 is rotatably sleeved on the rotation shaft 33, a torsion spring 34 is further sleeved on the rotation shaft 33, the torsion spring 34 is connected between the rotation shaft 33 and the striking part 32, and the torsion spring 34 maintains a state between the rotation shaft 33 and the striking part 32, so that the striking part 32 is not rigidly connected with the rotation shaft 33, and if the striking part 32 is fixed, the rotation shaft 33 can still rotate.

In still another embodiment of the present invention, a mounting cavity 311 is formed in the root 31, a servo motor 312 is mounted in the mounting cavity 311 through an elastic base, such as a rubber base, an output shaft of the servo motor 312 is connected with the rotating shaft 33, and the rotating shaft 33 is driven to rotate through the servo motor 312, so as to drive the striking part 32 to rotate, and the torsion spring 34 and the striking part 32 are driven to rotate synchronously through the rotation of the rotating shaft 33, so that the striking surface on the striking part 32 is replaced alternately.

Obviously, in this embodiment, the rotation shaft 33 is driven by the servo motor 312 (or other driving devices) to rotate and further drive the striking part 32 to rotate synchronously, however, when the striking part 32 does not rotate, the striking part 32 is in a movable state, at this time, when the striking part 32 strikes the material, the rotation shaft 33 easily rotates, and even if the difficulty degree of rotating the rotation shaft 33 can be increased by increasing the resistance, when the impact force is large, the rotation shaft 33 easily rotates uncontrollably, which is not beneficial to accurately switching the striking surface.

In still another embodiment of the present invention, a plurality of circumferentially arranged limiting holes 313 are formed at one end of the root 31 far from the connecting shaft 22, the number of the limiting holes 313 is preferably 4, the angle between the adjacent limiting holes 313 is 90 degrees, a sliding groove 321 is formed in the striking portion 32, a limiting shaft 322 is slidably mounted in the sliding groove 321, one end of the limiting shaft 322 is inserted into the limiting hole 313, and the sliding groove 321 and the limiting hole 313 are arranged in a one-to-one correspondence; when one end of the limiting shaft 322 is inserted into the limiting hole 313, the striking part 32 cannot rotate relative to the root 31, the rotating shaft 33 is fixed through the cooperation of the limiting shaft 322 and the limiting hole 313, the fixed state of the striking part 32 is the fixed state of the striking part 32, and when the limiting shaft 322 is not inserted into the limiting hole 313, the striking part 32 can rotate, the movable state of the striking part 32 is the movable state; the cylindrical cavity 323 has still been seted up to the one end that hits the portion 32 and is close to connecting axle 22, be connected with spacing spring 324 between spacing axle 322 and the cylindrical cavity 323, spacing spring 324's initial state is compressed state, can peg graft in spacing hole 313 all the time when spacing spring 324's elastic action is not received other external forces, in this embodiment, two states of hitting the portion 32 have been provided, when hitting the portion 32 and being in the fixed state, be convenient for restrict and hit the portion 32, prevent it free rotation when hitting the material, when hitting the portion 32 and being in the active state, hit the portion 32 and can free rotation, be convenient for switch the face.

In still another embodiment of the present invention, the outer wall of the rotating shaft 33 located in the cylindrical cavity 323 is fixedly connected with a spiral piece 331, the spiral piece 331 is in a spiral sheet structure, the angle occupied by the spiral piece 331 is 60 degrees to 80 degrees, preferably 70 degrees, on the axial projection of the rotating shaft 33, the outer wall of the limiting shaft 322 located in the cylindrical cavity 323 is fixedly connected with a lifting block 332, in an initial state, the lifting block 332 is attached to one end of the spiral piece 331 close to the connecting shaft 22, and when the rotating shaft 33 rotates, the spiral piece 331 is synchronously driven to rotate, and the lifting block 332 is extruded by the spiral piece 331 to move in a direction away from the root 31.

Specifically, regarding the timing of switching the striking surface of the striking part 32, the servo motor 312 may be periodically started to periodically rotate the striking part 32 by 90 degrees, or the striking part 32 may be started to rotate after stopping; when the striking part 32 strikes the material, the limiting shaft 322 is inserted into the limiting hole 313, the striking part 32 cannot rotate at this time, and the stability of the striking surface can be maintained; when the striking surface needs to be replaced, the rotating shaft 33 is driven to rotate by the servo motor 312, at this moment, two movement strokes exist between the rotating shaft 33 and the striking part 32, and in the first stroke, the striking part 32 is in a fixed state, but the rotation of the rotating shaft 33 drives the torsion spring 34 to be compressed, the rotating shaft 33 rotates in the striking part 32, meanwhile, the rotating shaft 33 synchronously drives the spiral piece 331 to rotate, at this moment, the spiral piece 331 rotates in the cylindrical cavity 323 and extrudes the lifting block 332 to move in a direction away from the root 31, the lifting block 332 drives the limiting shaft 322 to gradually rise, and at this moment, the limiting spring 324 is synchronously compressed; in the second stroke, the limiting shaft 322 gradually rises and completely leaves the limiting hole 313, at this time, the limiting shaft 322 can not prevent the striking part 32 from rotating any more, that is, the striking part 32 is in a movable state, so under the elastic action of the torsion spring 34, the rotating shaft 33 drives the striking part 32 to rotate rapidly and drives the limiting shaft 322 to move, and because the rotating shaft 33 rotates by 90 degrees, the limiting shaft 322 moves by 90 degrees and contacts with the new limiting hole 313, and under the elastic action of the limiting spring 324, the limiting shaft 322 is inserted into the new limiting hole 313 to fix the striking part 32 again; thus, the rotation of the rotation shaft 33 can be used to passively switch the striking part 32 between the fixed state and the movable state, and the rotation shaft 33 in this embodiment not only can drive the striking part 32 to rotate 90 degrees to change the striking surface, but also can automatically switch the state of the striking part 32, and the state of the striking part 32 is adapted to the movement of the striking part 32, thereby helping to protect the striking part 32. In this embodiment, the power supply of the moving servo motor 312 can be realized through a trolley wire and a spring wire, which are both in the prior art and are not described in detail.

In still another embodiment of the present invention, the size of the gap between the adjacent rotor discs 21 is larger than the width of the striking part 32, so that the striking part 32 can rotate conveniently, and the rotor discs 21 are prevented from interfering with rotation, however, in this embodiment, the striking part 32 may also be square, so that the gap between the rotor discs 21 can be further reduced.

Further, in this embodiment, the hammer 3 and the arc-shaped through hole 14 in the same plane are also in the same plane, that is, the hammer 3 corresponds to the similar arc-shaped through hole 14, so that the crushed materials can be conveniently extruded and output from the arc-shaped through hole 14; the end of the sliding groove 321 far away from the root 31 penetrates through the striking part 32, a first square groove is formed in the upper end of the limiting shaft 322, an extending rod is slidably mounted at the end of the sliding groove 321 far away from the root 31, in an initial state (namely, the initial state of the limiting spring 324), one end of the extending rod, which is close to the outside, is on the same plane with the end of the striking part 32 far away from the root 31, namely, the extending rod, which does not extend out of the striking part 32, a second square groove is formed at the end of the extending rod, which is close to the limiting shaft 322, a mounting spring is connected between the first square groove and the second square groove, and the extending rod capable of elastically moving is arranged because the extending time of the limiting shaft 322 is difficult to determine, so that the extending rod possibly contacts with the inner wall of the machine body 1, and the extending rod is designed to protect the limiting shaft 322; in the above embodiment, during the process of changing the striking surface of the striking part 32, the limiting shaft 322 is pressed by the screw 331 to move outwards, at this time, the extending rod extends out of the striking part 32, and since the hammer 3 corresponds to the similar arc-shaped through hole 14, the extending rod extends into the arc-shaped through hole 14, the striking part 32 moves along with the movement of the hammer 3, and during this process, the mounting spring maintains a certain elasticity, so that the connection between the extending rod and the limiting shaft 322 can also maintain a certain strength, and the material block possibly stuck in the arc-shaped through hole 14 is struck and dropped by the extending rod. Based on this, the striking portion 32 may be periodically turned to open the arcuate opening 14 in this embodiment.

It should be noted that, the number of the sliding grooves 321 is the same as that of the limiting shafts 322, and the limiting shafts 322 are uniformly circumferentially arranged in the striking portion 32, and the opposite limiting shafts 322 are located in the same plane, that is, the four limiting shafts 322 are located in two different planes, which are a first plane and a second plane, and the two planes are mutually perpendicular, when the limiting shafts 322 extend, a plurality of extending rods will enter different arc-shaped through openings 14, wherein the two limiting shafts 322 in the first plane extend in the same arc-shaped through opening 14, and the two limiting shafts 322 in the second plane extend in the arc-shaped through openings 14 on both sides, so designed, because the width of the arc-shaped through openings 14 is narrower, in order to adapt to the size of the striking portion 32, the limiting shafts 322 enter the different arc-shaped through openings 14.

Of course, the extending rod is difficult to extend when contacting with the arc-shaped through hole 14, and returns when separating from the arc-shaped through hole 14, so that the whole arc-shaped through hole 14 is difficult to clean, and therefore, the motion of the servo motor 312 is further required to be divided by the servo motor 312: in the process that the servo motor 312 drives the rotating shaft 33 to rotate 90 degrees, when the limiting shaft 322 does not completely leave the limiting hole 313 and the extending rod extends out for a certain length, the servo motor 312 is stopped to maintain the extending state of the extending rod, at the moment, the extending rod can rotate for a complete circle along with the hammer 3, and under the elastic action of the mounting spring, the extending rod can not prevent the movement of the hammer 3 even contacting with the arc-shaped sieve plate 13 or the machine body 1, and when the extending rod rotates for more than one circle along with the hammer 3, the complete cleaning of the arc-shaped through opening 14 can be ensured; in this embodiment, the movement of the limiting shaft 322 and the hammer 3 is utilized, so that the extending rod can passively extend and hit and drop the possibly stuck material block in the arc-shaped through hole 14, and of course, the process can be performed during crushing operation or during stopping operation, so that the limiting shaft 322 has the functions of limiting the rotation of the hitting part 32 and hitting and cleaning the inside of the arc-shaped through hole 14.

It is obvious that even though the servo motor 312 is installed in the installation cavity 311 through the elastic base, the vibration on the striking part 32 still can be transmitted to the servo motor 312, and may cause larger damage to the servo motor 312, for this purpose, another embodiment is provided to drive the rotation shaft 33 to rotate, which includes the hydraulic driving assembly 35, the hydraulic driving assembly 35 includes the liquid inlet channel 351 opened in the installation cavity 311, the installation cavity 311 is filled with oil, the liquid inlet channel 351 is communicated with external hydraulic equipment, such as through a spiral infusion tube, a central hole is set in the central shaft 2 as a liquid inlet hole, the liquid inlet hole is communicated with the liquid inlet channel 351 through the spiral infusion tube, so as to adapt to the movement of the movement assembly, the hydraulic equipment is used for controlling the inlet and outlet of the oil, which is not repeated in the prior art, the rotating shaft 33 is internally provided with a cavity 352, the cavity 352 is cylindrical, the cavity 352 is communicated with the mounting cavity 311, the inner wall of the cavity 352 is provided with a spiral groove 353, a driving block 354 is slidably mounted in the cavity 352, the driving block 354 is also provided with a protruding block (not shown in the figure) slidably arranged in the spiral groove 353, that is, the driving block 354 is slidably mounted in the cavity 352 and is slidably connected with the spiral groove 353, a limiting rod 355 is fixed in the mounting cavity 311, the limiting rod 355 is square, the driving block 354 is prevented from rotating, the limiting rod 355 slidably penetrates through the driving block 354 and extends into the cavity 352, the driving block 354 is limited to move only along the direction perpendicular to the root 31 by the sliding direction of the limiting rod 355, and the space between the driving block 354 and the mounting cavity 311 is filled with oil; during operation, the hydraulic equipment is used for pressing the oil in the liquid inlet channel 351, so that the oil is extruded into the cavity 352 and simultaneously extrudes the driving block 354 to move in a direction far away from the liquid inlet channel 351, the driving block 354 can only move in a direction far away from the liquid inlet channel 351 and cannot rotate by itself because the movement direction of the driving block 354 is limited by the limiting rod 355, and the driving block 354 is also in sliding connection with the spiral groove 353, so that when the driving block 354 moves, the spiral groove 353 also moves along with the driving block, the rotating shaft 33 is forced to rotate, and therefore, the rotation of the rotating shaft 33 is realized through the oil, a power source is prevented from being arranged in the root 31, and the vibration cannot generate great adverse effect on the hydraulic driving assembly 35.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the invention, which is defined by the appended claims.

Claims

1. The high-safety crusher comprises a crusher body, wherein a crushing cavity is arranged in the crusher body, a central rotating assembly is arranged in the crushing cavity, and a plurality of hammers are arranged on the central rotating assembly, and the high-safety crusher is characterized in that the hammers comprise a root part and a striking part rotatably connected to the root part, and the striking part can be driven to rotate relative to the root part to replace a striking surface;

An arc-shaped sieve plate is fixedly connected in the crushing cavity, a plurality of arc-shaped through holes are formed in the arc-shaped sieve plate, the arc-shaped sieve plate is positioned on the outer side of the rotor disc, the central line of the arc-shaped sieve plate coincides with the central line of the rotor disc, and the diameter of the arc-shaped sieve plate is larger than that of the rotor disc;

The middle part of one end of the root part, which is far away from the connecting shaft, is rotatably provided with a rotating shaft, the striking part is rotatably sleeved on the rotating shaft, the rotating shaft is also sleeved with a torsion spring, and the torsion spring is connected between the rotating shaft and the striking part;

An installation cavity is formed in the root part, a servo motor is installed in the installation cavity through an elastic base, and an output shaft of the servo motor is connected with a rotating shaft;

The root part is far away from one end of the connecting shaft and provided with a plurality of circumferentially arranged limit holes, the striking part is internally provided with a chute, the chute is internally provided with a limit shaft in a sliding manner, the limit shaft is inserted in the limit holes, one end of the striking part, which is close to the connecting shaft, is also provided with a cylindrical cavity, and a limit spring is connected between the limit shaft and the cylindrical cavity;

the rotary shaft is located the outer wall rigid coupling in the cylindrical chamber and has the screw, the spacing axle is located the rigid coupling on the outer wall in the cylindrical chamber and has the lifting block, and during initial state, the lifting block laminating is close to the one end of connecting axle at the screw.

2. The high safety crusher of claim 1, wherein a driving motor is mounted on the outer side wall of the crusher body, and an output shaft of the driving motor is connected with the central rotating assembly.

3. The high-safety crusher according to claim 2, wherein the upper end of the crusher body is provided with a feeding passage, and a shielding plate is rotatably mounted on the upper side of the inner wall of the feeding passage and used for preventing the crushed material blocks from splashing.

4. The high-safety crusher according to claim 2, wherein the central rotating assembly comprises a central shaft rotatably mounted in the crushing cavity, a plurality of rotor discs are fixedly connected to the central shaft, a plurality of connecting shafts are fixedly connected between the rotor discs, and the hammers are rotatably arranged on the connecting shafts in a one-to-one correspondence.

5. A high safety crusher according to claim 1, wherein the size of the gap between adjacent rotor discs is larger than the width of the striking portion.