CN112264148A

CN112264148A - Impact crusher

Info

Publication number: CN112264148A
Application number: CN202011300023.6A
Authority: CN
Inventors: 不公告发明人
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-19
Filing date: 2020-11-19
Publication date: 2021-01-26

Abstract

The invention relates to the technical field of stone crushing, and discloses a counterattack crusher which comprises a base, wherein a shell is fixedly installed at the top of the base, a feeding port is formed in the position, close to the top, of one side of the shell, and an output shaft of a hydraulic machine is in contact with the outer surface of the shell. Make the hydraulic press can come the distance between control regulation frame and the shell surface through self regulation, because the one end of connecting block and the surface fixed connection of loading board, when making the distance between regulation frame and the shell change, also can drive the axis that the loading board used spacing axle and rotate as rotation center, thereby adjust thereby the contained angle between the direction of motion that loading board and building stones were thrown guarantees building stones and keep perpendicular at the in-process direction of motion and the striking plate that move to the breaker, thereby avoided building stones to have had the motion weight that is on a parallel with the breaker and caused the problem that the effect of building stones was broken descends, the crushing effect of the device has been improved.

Description

Impact crusher

Technical Field

The invention relates to the technical field of stone crushing, in particular to a reaction crusher.

Background

The crusher is the most common equipment in a quarrying site, and can be divided into a cone crusher, a jaw crusher, a centrifugal crusher and an impact crusher by a crushing mode, wherein the impact crusher is the most common crusher, a rotor is driven to rotate at a high speed and a centrifugal plate is driven to rotate by a power system, stone is accelerated when in contact with the centrifugal plate and is collided with the crushing plate to achieve the crushing effect, resilience can be generated after single crushing, and the rebound is contacted with the centrifugal plate again to perform secondary crushing, so that the crushing effect is improved, and the impact crusher is usually used for secondary crushing and has the advantages of simple structure, low cost, convenience in maintenance and the like.

But there is certain defect in current impact crusher, some metal mineral that hardness is higher or some other debris enter into broken chamber because the in-process of quarrying can appear, because the crushing plate is fixed in the inside in broken chamber, make it normally pass through and make the rotor card owner between rotor and the crushing plate, easily cause slewing mechanism impaired, and the fixed connection of crushing plate leads to the contained angle between the motion direction that crushing plate and building stones were thrown can't be adjusted, make building stones be at the in-process motion direction that moves to the crushing plate unable perpendicular to crushing plate and lead to having the motion weight that is on a parallel with the crushing plate and cause the broken effect of building stones to descend, to this, this application file provides an impact crusher, aim at solving above-mentioned problem that provides.

Disclosure of Invention

Aiming at the defects of the existing impact crusher in the use process in the background art, the invention provides the impact crusher which has the advantage that the angle of a crushing plate can be adjusted so as to optimize the included angle between the movement direction of stone and the crushing plate, and solves the problem that the movement direction of the stone cannot be perpendicular to the crushing plate in the movement process of the stone to the crushing plate due to the fixed installation of the crushing plate of the traditional impact crusher, so that the movement component parallel to the crushing plate exists, and the stone crushing effect is reduced.

The invention provides the following technical scheme: the utility model provides an impact crusher, includes the base, the top fixed mounting of base has the shell, the pan feeding mouth has been seted up on the position that shell one side is close to the top, fixed mounting has rotor apparatus on the position that shell inner chamber bottom is close to the centre, fixed mounting has spacing axle and spacing axle's quantity to be two on the position that shell inner chamber both sides just are close to the outside, the surface activity of spacing axle has cup jointed the loading board, one side fixed mounting of loading board has the striking plate, the opposite side fixed mounting of loading board has adjusting device, the inside fixed mounting that rectangular channel and this rectangular channel were all seted up to shell inner chamber's both sides has the one end fixed connection of transmission and loading board, the feed opening has been seted up on the position that just is located between rotor apparatus and the loading board in shell inner chamber bottom.

Preferably, the rotor device includes the mount pad, fixed mounting has the backup pad on the position that the top of mount pad is close to both ends, stop device has been cup jointed in the inside activity of backup pad, stop device's one end fixed mounting has the main shaft, the quantity that the external fixed surface of main shaft installed fixed block and fixed block is four and distributes with annular array's mode, the quantity that fixed mounting has fixed strip and fixed strip is four and corresponding with the position of fixed block on the position that the surface of main shaft is located fixed block one side, fixed mounting has the centrifugal plate on the position between fixed block and the fixed strip, stop device's one end fixed mounting has the drive wheel.

Preferably, stop device includes spacing pivot, the one end fixed mounting of spacing pivot has the limiting plate, the quantity that arc hole and arc hole were seted up to one side of limiting plate is three, the fixed cover in inside in arc hole has connect adjusting bolt, adjusting bolt has drive plate and drive plate to contact with the limiting plate through screw thread fixed mounting.

Preferably, the outer surface of the transmission disc is provided with protrusions, the two sides of each protrusion are provided with arc surfaces, the number of the protrusions on the outer surface of the transmission disc is four, the positions of the protrusions correspond to the positions of the centrifugal plates, and the protrusions on the outer surface of the transmission disc are in contact with the transmission device.

Preferably, transmission includes the slide bar, slide bar fixed mounting is in the rectangular channel that shell inner chamber both sides began, the surface activity of slide bar has cup jointed sliding sleeve, sliding sleeve surface just is close to the protruding contact that fixed mounting has transfer line and driving disc surface to set up on the position of one end, sliding sleeve surface just is close to the one end and the loading board fixed connection of fixed mounting with connecting rod and connecting rod on the position in the other end, sliding sleeve's one end fixed mounting has the one end of reset spring II and the inner wall fixed connection of shell both sides rectangular channel.

Preferably, adjusting device includes the alignment jig, the fixed cover that has connect on the alignment jig top is located the intermediate position has the hydraulic press, the output shaft of hydraulic press contacts with the surface of shell, fixed mounting has the stroke sleeve on the position of alignment jig inside and be located the hydraulic press both sides, the stroke pole has been cup jointed in stroke telescopic inside activity, the one end fixed mounting of stroke pole has the one end of reset spring I and the inside fixed connection of alignment jig, the other end activity of stroke pole has cup jointed the regulation pole, the fixed quantity that has connect connecting block and connecting block of surface of adjusting the pole is three, the one end of connecting block and the fixed surface connection of loading board.

The invention has the following beneficial effects:

1. the invention controls the distance between the adjusting frame and the outer surface of the shell through the contact of the output shaft of the hydraulic press and the outer surface of the shell, on one hand, the hydraulic press can control the distance between the adjusting frame and the outer surface of the shell through self adjustment, and on the other hand, one end of the connecting block is fixedly connected with the outer surface of the bearing plate, so that the distance between the adjusting frame and the shell is changed, and simultaneously, the bearing plate is driven to rotate by taking the axis of the limiting shaft as a rotating center, thereby adjusting the included angle between the bearing plate and the movement direction of the projection of the stone material, thereby ensuring that the movement direction of the stone material is vertical to the impact plate in the movement process of the stone material to the crushing plate, further avoiding the problem that the stone material crushing effect is reduced due to the movement component of the stone material parallel to the crushing plate, improving the crushing effect of the device, make the stroke pole can follow the axis direction of self and move, can push the loading board under the rotation promotion of fixed strip after the non-breakable debris enters into the shell, thereby make the loading board use the axis of spacing axle to rotate as center of rotation, make the interval between rotor device and the loading board enlarge this moment, thereby make debris can normally pass through between rotor device and the loading board, thereby the fixed mounting of broken plate leads to non-breakable debris can't normally pass through rotor device and loading board and lead to rotor device card owner to make the device normally broken among the conventional equipment, the stability of the operation of the device has been improved.

2. The invention enables the limiting device to rotate step by step in the process of the operation and rotation of the rotor device by contacting the transmission rod with the bulges arranged on the outer surface of the transmission disc, at the moment, the bulges on the outer surface of the transmission disc are continuously contacted with the transmission rod and drive the sliding sleeve to move along the axial direction of the sliding rod, at the moment, one end of the connecting rod is fixedly connected with the bearing plate, so that the bearing plate is driven to synchronously rotate while the sliding sleeve moves, the transmission rod is continuously rotated along with the transmission disc to be separated from the bulges on the outer surface of the transmission disc, meanwhile, the sliding sleeve is reset under the action of the elastic potential energy of the reset spring II, and simultaneously, the bearing plate is reset under the action of the elastic potential energy of the reset spring I, so that the bearing plate can complete swing once, and in the subsequent rotation of the transmission disc, the transmission rod is continuously contacted with the bulges on the outer, thereby make building stones can take place the striking breakage back with the striking plate and can take place the great resilience of range under the wobbling effect of loading board, make the building stones after the single breakage can kick-back and abundant carry out the secondary crushing or even cubic breakage, thereby the crushing effect of the device has been improved, the inside debris of shell that enter into simultaneously also can pass through with higher speed under the continuous vibration of loading board, avoid the passing through speed of debris in the shell to make the transit time longer relatively slowly, and crushing effect decline problem in this time quantum, thereby the practicality of the device has been improved.

3. According to the stone crushing device, the number of the protrusions on the outer surface of the transmission disc is four, the positions of the protrusions correspond to the positions of the centrifugal plates, the included angle between the protrusions on the outer surface of the transmission disc and the centrifugal plates is adjusted, stone can be accelerated by the centrifugal plates, when the stone is contacted with the impact plates, the bearing plates are in a reset state, the movement directions of the stone and the bearing plates are opposite, so that the relative speed between the stone and the bearing plates is increased, the stone crushing efficiency of the device is improved, an arc-shaped hole is formed in one side of the limiting plate, an adjusting bolt is fixedly sleeved in the arc-shaped hole, the transmission disc is fixedly installed on the adjusting bolt through threads, the included angle between the transmission disc and the centrifugal plates can be conveniently adjusted, and the practicability of the device is improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of the structure of the present invention;

FIG. 3 is a front view of the structure of the present invention;

FIG. 4 is a schematic view of the internal structure of the present invention;

FIG. 5 is a schematic view of a rotor structure according to the present invention;

FIG. 6 is a schematic cross-sectional view of a rotor structure according to the present invention;

FIG. 7 is a schematic view of a structural stop device of the present invention;

FIG. 8 is a schematic view of the transmission structure of the present invention;

FIG. 9 is a schematic view of a structural adjustment device of the present invention;

FIG. 10 is a schematic cross-sectional view of a structural adjustment device of the present invention.

In the figure: 1. a base; 2. a housing; 3. a feeding port; 4. a rotor arrangement; 41. a mounting seat; 42. a support plate; 43. a limiting device; 431. a limiting rotating shaft; 432. a limiting plate; 433. an arc-shaped hole; 434. adjusting the bolt; 435. a drive plate; 44. a main shaft; 45. a fixed block; 46. a fixing strip; 47. a centrifugal plate; 48. a drive wheel; 5. a limiting shaft; 6. a carrier plate; 7. an impact plate; 8. an adjustment device; 81. an adjusting bracket; 82. a hydraulic press; 83. a travel sleeve; 84. a trip lever; 85. a return spring I; 86. adjusting a rod; 87. connecting blocks; 9. a transmission device; 91. a slide bar; 92. a sliding sleeve; 93. a transmission rod; 94. a connecting rod; 95. a return spring II; 10. and (4) a feed opening.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-10, a counterattack crusher comprises a base 1, a housing 2 is fixedly installed at the top of the base 1, a feeding port 3 is formed at a position, close to the top, of one side of the housing 2, a rotor device 4 is fixedly installed at a position, close to the middle, of the bottom of an inner cavity of the housing 2, the rotor device 4 comprises a mounting seat 41, supporting plates 42 are fixedly installed at positions, close to two ends, of the top of the mounting seat 41, limiting devices 43 are movably sleeved inside the supporting plates 42, the limiting devices 43 comprise limiting rotating shafts 431, limiting plates 432 are fixedly installed at one ends of the limiting rotating shafts 431, three arc-shaped holes 433 are formed at one sides of the limiting plates 432, adjusting bolts 434 are fixedly sleeved inside the arc-shaped holes 433, the adjusting bolts 434 are fixedly installed with a driving disc 435 through threads, the driving disc 435 is in contact with the limiting plates 432, protrusions are arranged on the outer surface of the driving, the number of the bulges on the outer surface of the transmission disc 435 is four, the positions of the bulges correspond to the positions of the centrifugal plates 47, the bulges on the outer surface of the transmission disc 435 are in contact with the transmission device 9, the transmission device 9 comprises a slide rod 91, the slide rod 91 is fixedly arranged in rectangular grooves formed in the two sides of the inner cavity of the shell 2, a sliding sleeve 92 is movably sleeved on the outer surface of the slide rod 91, a transmission rod 93 is fixedly arranged on the position, close to one end, of the outer surface of the sliding sleeve 92, in contact with the bulges arranged on the outer surface of the transmission disc 435, a connecting rod 94 is fixedly arranged on the position, close to the other end, of the outer surface of the sliding sleeve 92, one end of the connecting rod 94 is fixedly connected with the bearing plate 6, a return spring II 95 is fixedly arranged at one end of the sliding sleeve 92, one end of the return spring II, the outer surface of the main shaft 44 is fixedly provided with four fixing blocks 45, the number of the fixing blocks 45 is four, the fixing blocks are distributed in an annular array mode, the position, located on one side of the fixing block 45, of the outer surface of the main shaft 44 is fixedly provided with four fixing strips 46, the number of the fixing strips 46 is corresponding to that of the fixing block 45, a centrifugal plate 47 is fixedly arranged on the position between the fixing blocks 45 and the fixing strips 46, one end of a limiting device 43 is fixedly provided with a driving wheel 48, the positions, close to the outer side, on two sides of an inner cavity of the shell 2 are fixedly provided with two limiting shafts 5, the number of the limiting shafts 5 is two, the outer surface of each limiting shaft 5 is movably sleeved with a bearing plate 6, one side of each bearing plate 6 is fixedly provided with a striking plate 7, the other side of each bearing plate 6 is fixedly provided with an adjusting device 8, each adjusting, the output shaft of hydraulic press 82 contacts with the surface of shell 2, fixed mounting has stroke sleeve 83 on the position that alignment jig 81 is inside and be located hydraulic press 82 both sides, stroke rod 84 has been cup jointed in the inside activity of stroke sleeve 83, the one end fixed mounting of stroke rod 84 has reset spring I85 and reset spring I85's one end and the inside fixed connection of alignment jig 81, adjustment rod 86 has been cup jointed in the other end activity of stroke rod 84, the outer fixed surface of adjustment rod 86 has cup jointed connecting block 87 and connecting block 87's quantity is three, the one end of connecting block 87 is connected with the surface fixed connection of loading board 6, the inside fixed mounting that rectangular channel and this rectangular channel had transmission 9 and the one end fixed connection of loading board 6 has all been seted up to the both sides of shell 2 inner chamber, shell 2 inner chamber bottom has just been located and has seted up feed opening 10 on the position between rotor device.

Wherein, the output shaft of the hydraulic press 82 is contacted with the outer surface of the shell 2, on one hand, the hydraulic press 82 can control the distance between the adjusting frame 81 and the outer surface of the shell 2 through self adjustment, because one end of the connecting block 87 is fixedly connected with the outer surface of the bearing plate 6, the distance between the adjusting frame 81 and the shell 2 is changed, and simultaneously, the bearing plate 6 can be driven to rotate by taking the axis of the limiting shaft 5 as a rotation center, thereby adjusting the included angle between the bearing plate 6 and the movement direction projected by stone, ensuring that the movement direction of the stone is vertical to the impact plate 7 in the movement process of the stone to the crushing plate, avoiding the problem that the stone has the movement component parallel to the crushing plate to cause the reduction of the stone crushing effect, improving the crushing effect of the device, on the other hand, the reset spring I85 is fixedly installed at one end of the stroke rod 84, and one end of the reset spring I85 is fixedly connected with, make stroke pole 84 can move along the axis direction of self, can push bearing plate 6 under the rotation promotion of fixed strip 46 after the non-breakable debris enters into shell 2, thereby make bearing plate 6 use the axis of spacing axle 5 to rotate as the rotation center, make the interval between rotor device 4 and the bearing plate 6 enlarge this moment, thereby make debris can normally pass through between rotor device 4 and the bearing plate 6, avoided the fixed mounting of crushing plate among the conventional equipment to lead to non-breakable debris can't normally pass through rotor device 4 and bearing plate 6 and lead to rotor device 4 card owner to make the device normally broken, the stability of the operation of the device has been improved.

Wherein, the driving rod 93 contacts with the protrusion on the outer surface of the driving disc 435, so that the position-limiting device 43 rotates step by step in the process of the rotation of the rotor device 4, at this time, the protrusion on the outer surface of the driving disc 435 continuously contacts with the driving rod 93 and drives the sliding sleeve 92 to move along the axial direction of the sliding rod 91, at this time, one end of the connecting rod 94 is fixedly connected with the bearing plate 6, so that the sliding sleeve 92 moves and simultaneously drives the bearing plate 6 to rotate synchronously, the driving rod 93 is separated from the protrusion on the outer surface of the driving disc 435 as the driving disc 435 continues to rotate, at the same time, the sliding sleeve 92 resets under the action of the elastic potential energy of the return spring ii 95, and at the same time, the bearing plate 6 resets under the action of the elastic potential energy of the return spring i 85, so that the bearing plate 6 completes one complete swing, and in the subsequent, thereby the contact can be constantly taken place with the arch of driving disc 435 surface to the transfer line 93 makes loading board 6 keep wobbling state, thereby make building stones can take place the great resilience of range under the wobbling effect of loading board 6 after the striking is broken taking place with striking plate 7, make the building stones after carrying out the single breakage can kick-back and abundant carry out the secondary crushing or even cubic breakage, thereby the crushing effect of the device has been improved, the inside debris of entering into shell 2 simultaneously also can pass through with higher speed under the continuous vibration of loading board 6, avoid the passing through speed of debris in shell 2 to make the transit time longer, and crushing effect decline problem in this period of time, thereby the practicality of the device has been improved.

Wherein, the bellied quantity through driving disc 435 surface is four and this bellied position corresponds with the position of centrifugal plate 47 to, through the contained angle between regulation driving disc 435 surface arch and the centrifugal plate 47, can be at centrifugal plate 47 when accelerating the building stones and contact at building stones and striking plate 7, make loading board 6 be in the state that resets, the direction of motion between building stones and the loading board 6 is opposite this moment, thereby increase the relative velocity between building stones and the loading board 6, the crushing efficiency of the device to building stones has been improved, and arc hole 433 has been seted up through one side of limiting plate 432, the fixed cover in inside of arc hole 433 has been cup jointed adjusting bolt 434 and adjusting bolt 434 has driving disc 435 through screw thread fixed mounting, thereby contained angle between regulation driving disc 435 and the centrifugal plate 47 that can be convenient, thereby the practicality of the device has been improved.

The using method of the invention is as follows:

when the crushing device is used, the power system is started, the rotor device 4 is driven to rotate at a high speed, at the moment, a proper amount of stone to be crushed is thrown into the shell 2 from the material inlet 3, the stone is thrown out when contacting with the centrifugal plate 47 rotating at a high speed and collides with the impact plate 7 to be crushed, in the process, the hydraulic machine 82 can control the distance between the adjusting frame 81 and the outer surface of the shell 2 through self adjustment, because one end of the connecting block 87 is fixedly connected with the outer surface of the bearing plate 6, the distance between the adjusting frame 81 and the shell 2 is changed, meanwhile, the bearing plate 6 is driven to rotate by taking the axis of the limiting shaft 5 as a rotation center, so that the included angle between the bearing plate 6 and the movement direction projected by the stone is adjusted to ensure that the movement direction of the stone is vertical to the impact plate 7 in the process of moving to the crushing plate, and the bearing plate 6 is extruded under the rotation pushing of the fixing strip 46 after non-crushable sundries, therefore, the bearing plate 6 rotates by taking the axis of the limiting shaft 5 as a rotation center, and the distance between the rotor device 4 and the bearing plate 6 is enlarged, so that sundries can normally pass through the space between the rotor device 4 and the bearing plate 6.

The limiting device 43 rotates step by step in the process of the rotor device 4 rotating during operation, at this time, the protrusion on the outer surface of the transmission disc 435 continuously contacts with the transmission rod 93 and drives the sliding sleeve 92 to move along the axial direction of the sliding rod 91, the sliding sleeve 92 drives the bearing plate 6 to rotate synchronously while moving, the transmission rod 93 is separated from the protrusion on the outer surface of the transmission disc 435 as the transmission disc 435 continues to rotate, the sliding sleeve 92 resets under the action of the elastic potential energy of the reset spring II 95, the bearing plate 6 also resets under the action of the elastic potential energy of the reset spring I85, so that the bearing plate 6 completes one complete swing, and in the subsequent rotation of the transmission disc 435, the transmission rod 93 continuously contacts with the protrusion on the outer surface of the transmission disc 435 to keep the bearing plate 6 in a swing state, so that the stone can generate a larger amplitude under the action of the swing of the bearing plate 6 after being collided and crushed with the impact plate 7 The sundries entering the housing 2 can also pass through the bearing plate 6 at an accelerated speed under the continuous vibration.

The angle between the projections on the outer surface of the driving disc 435 and the centrifugal plate 47 is adjusted to bring the loading plate 6 in a reset position when the centrifugal plate 47 accelerates the rock material and when the rock material comes into contact with the impact plate 7, the direction of movement between the rock material and the loading plate 6 being reversed, thereby increasing the relative speed between the rock material and the loading plate 6.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An impact crusher, comprising a base (1), characterized in that: the top of the base (1) is fixedly provided with a shell (2), a feeding port (3) is formed in a position, close to the top, of one side of the shell (2), a rotor device (4) is fixedly arranged in a position, close to the middle, of the bottom of an inner cavity of the shell (2), two limiting shafts (5) and two limiting shafts (5) are fixedly arranged on positions, close to the outer side, of two sides of the inner cavity of the shell (2), a bearing plate (6) is movably sleeved on the outer surface of each limiting shaft (5), a striking plate (7) is fixedly arranged on one side of each bearing plate (6), an adjusting device (8) is fixedly arranged on the other side of each bearing plate (6), rectangular grooves are formed in two sides of the inner cavity of the shell (2), a transmission device (9) is fixedly arranged inside each rectangular groove, the transmission device (9) is fixedly connected with one end of, and a feed opening (10) is formed in the bottom of the inner cavity of the shell (2) and positioned between the rotor device (4) and the bearing plate (6).

2. An impact crusher according to claim 1, characterized in that: the rotor device (4) comprises a mounting seat (41), supporting plates (42) are fixedly mounted at the positions, close to the two ends, of the top of the mounting seat (41), a limiting device (43) is movably sleeved in the supporting plate (42), one end of the limiting device (43) is fixedly provided with a main shaft (44), the outer surface of the main shaft (44) is fixedly provided with four fixing blocks (45), the number of the fixing blocks (45) is four, the fixing blocks are distributed in an annular array manner, the outer surface of the main shaft (44) is fixedly provided with four fixing strips (46) at one side of the fixing block (45), the number of the fixing strips (46) is four, the fixing strips correspond to the position of the fixing block (45), a centrifugal plate (47) is fixedly arranged between the fixed block (45) and the fixed strip (46), and one end of the limiting device (43) is fixedly provided with a driving wheel (48).

3. An impact crusher according to claim 2, characterized in that: stop device (43) are including spacing pivot (431), the one end fixed mounting of spacing pivot (431) has limiting plate (432), the quantity that arc hole (433) and arc hole (433) were seted up to one side of limiting plate (432) is three, adjusting bolt (434) have been cup jointed to the inside of arc hole (433) is fixed, adjusting bolt (434) have drive plate (435) and drive plate (435) to contact with limiting plate (432) through screw thread fixed mounting.

4. A impact crusher in accordance with claim 3, wherein: the outer surface of the transmission disc (435) is provided with protrusions, the two sides of each protrusion are respectively provided with arc surfaces, the number of the protrusions on the outer surface of the transmission disc (435) is four, the positions of the protrusions correspond to the positions of the centrifugal plates (47), and the protrusions on the outer surface of the transmission disc (435) are in contact with the transmission device (9).

5. An impact crusher according to claim 4, characterized in that: transmission (9) include slide bar (91), slide bar (91) fixed mounting is in the rectangular channel that shell (2) inner chamber both sides begin, sliding sleeve (92) have been cup jointed in the surface activity of slide bar (91), fixed mounting has transfer line (93) and the arch that sets up with driving disc (435) surface to contact on sliding sleeve (92) surface and the position that is close to one end, fixed mounting has one end and loading board (6) fixed connection of connecting rod (94) and connecting rod (94) on sliding sleeve (92) surface and the position that is close to in the other end, the one end fixed mounting of sliding sleeve (92) has the inner wall fixed connection of the one end of reset spring II (95) and shell (2) both sides rectangular channel.

6. An impact crusher according to claim 1, characterized in that: the adjusting device (8) comprises an adjusting frame (81), the adjusting frame (81), the top of the adjusting bracket (81) is fixedly sleeved with a hydraulic machine (82) at the middle position, the output shaft of the hydraulic machine (82) is contacted with the outer surface of the shell (2), a stroke sleeve (83) is fixedly arranged in the adjusting frame (81) and at the positions at the two sides of the hydraulic machine (82), a stroke rod (84) is movably sleeved in the stroke sleeve (83), one end of the stroke rod (84) is fixedly provided with a return spring I (85), one end of the return spring I (85) is fixedly connected with the inside of the adjusting frame (81), the other end of the travel rod (84) is movably sleeved with an adjusting rod (86), the outer surface of the adjusting rod (86) is fixedly sleeved with three connecting blocks (87), one end of the connecting block (87) is fixedly connected with the outer surface of the bearing plate (6).