CN111085313A

CN111085313A - Small rock crushing device

Info

Publication number: CN111085313A
Application number: CN202010027974.4A
Authority: CN
Inventors: 不公告发明人
Original assignee: Jiande Tuocheng Automation Equipment Co Ltd
Current assignee: Jiande Tuocheng Automation Equipment Co Ltd
Priority date: 2020-01-10
Filing date: 2020-01-10
Publication date: 2020-05-01

Abstract

The invention discloses a small rock crushing device which comprises a machine body, wherein a transmission cavity is arranged on the front side of the right side of the machine body, a transmission device is arranged in the transmission cavity, a belt wheel cavity with an upward opening is arranged on the left side of the transmission cavity, a main belt right shaft is rotatably arranged on the right sides of the front end wall and the rear end wall of the belt wheel cavity, a main belt wheel is fixed at the front end of the main belt right shaft, and a main belt is arranged on the main belt wheel.

Description

Small rock crushing device

Technical Field

The invention relates to the technical field of rock crushing, in particular to a small rock crushing device.

Background

Crushers generally handle larger pieces of material, with coarser product particle sizes. The structure is characterized in that certain gaps are arranged among the crushing pieces and the crushing pieces are not in contact with each other. The crusher can be divided into a coarse crusher, a medium crusher and a fine crusher.

However, the cost of using these devices is too high when small rocks are to be crushed, a great deal of manpower and material resources are wasted to a certain extent, and accidents of casualties caused by the no-load starting of the crusher also happen occasionally.

Disclosure of Invention

Aiming at the technical defects, the invention provides a small rock crushing device which can overcome the defects.

The invention relates to a small-sized rock crushing device, which comprises a machine body, wherein a transmission cavity is arranged on the front side of the right side of the machine body, a transmission device is arranged in the transmission cavity, a pressure cavity is arranged at the top inside the machine body, a lower pressure cavity is arranged below the pressure cavity, a middle transfer cavity is arranged below the lower pressure cavity, a pulley cavity with an upward opening is arranged on the left side of the transmission cavity, a right main belt shaft is rotatably arranged on the right sides of the front end wall and the rear end wall of the pulley cavity, a main belt pulley is fixed at the front end of the right main belt shaft, a main belt is arranged on the main belt pulley, a left main belt shaft rotatably connected with the front end wall and the rear end wall of the pulley cavity is arranged on the left side of the right main belt shaft, a main belt secondary belt pulley is fixed at the front end of the left main belt shaft, and the main belt pulley is connected, an output cavity is arranged behind the transmission cavity, an output device is arranged in the output cavity, a main motor is arranged in the lower end wall of the output cavity, an output shaft is connected above the main motor, a spline is arranged at the upper end of the output shaft, a crushing driving gear is arranged above the output shaft, a spline hole is arranged at the lower end of the crushing driving gear, a supporting cavity is arranged in the upper end wall of the output cavity, a connecting intermediate shaft which is rotatably arranged in the upper end wall of the output cavity and can slide up and down is fixed at the upper side of the crushing driving gear, the upper end of the connecting intermediate shaft penetrates through the supporting cavity to extend upwards and is fixed with a base, a square fixing block is fixed on the base, a crushing barrel with the bottom end matched with the square fixing block is placed on the base, a supporting block rotatably, the supporting block lower extreme be provided with the supporting spring that the lower extreme wall in support chamber is connected, broken driving gear up end is provided with down the friction disc, transmission chamber up end wall is provided with the friction disc, lower friction disc is located under the last friction disc.

Preferably, the transmission device comprises a transmission motor fixedly arranged in the left end wall of the transmission cavity, a transmission output shaft is fixedly arranged on the right side of the transmission motor, a main transmission bevel gear is fixedly arranged at the right end of the transmission output shaft, a transmission belt driving bevel gear is meshed below the main transmission bevel gear, a transmission support shaft rotatably connected with the lower end wall of the transmission cavity is fixedly arranged at the lower end of the transmission belt driving bevel gear, a transmission driving pulley is fixedly arranged in the middle of the transmission support shaft, a transmission belt is mounted on the transmission driving pulley, a driven pulley shaft rotatably connected with the lower end wall of the transmission cavity is arranged on the left side of the transmission support shaft, a transmission driven pulley is fixedly arranged in the middle of the driven pulley shaft, the transmission driving pulley is connected with the transmission driven pulley through the transmission belt, and a main belt output bevel gear is fixedly arranged at, the front end of the main belt output bevel gear is engaged with a main belt input bevel gear, the main belt input bevel gear is fixedly connected with a main belt right shaft, a forward and backward driving bevel gear is engaged above the driving transmission bevel gear, a forward and backward main shaft is fixed on the upper side of the forward and backward driving bevel gear, a forward and backward upper gear is fixed on the upper end of the forward and backward main shaft, a forward and backward lower gear fixed on the forward and backward main shaft is arranged on the lower side of the forward and backward upper gear, the forward and backward main shaft is rotatably supported by the forward and backward main shaft fixedly arranged in the left end wall of the transmission cavity, a forward and backward rack is engaged at the rear end of the forward and backward lower gear, a jaw is fixed on the left side of the forward and backward rack, a lifting driving bevel gear is engaged on the right side of the forward and backward driving bevel gear, the lifting left gear left side is provided with fixes lifting driven gear on the lifting main shaft, the lifting main shaft is in with fixed setting the lifting main shaft in the wall of transmission chamber rear end supports to rotate and is connected, the meshing of lifting driven gear below has the lift intermediate gear, the lift intermediate gear right-hand member is fixed with the lift jackshaft, the lift jackshaft right-hand member is fixed with the lift right gear, the lift jackshaft is in with fixed setting the lift jackshaft support in the wall of transmission chamber lower end rotates and is connected, the meshing of lift right gear rear side has the lifting rack, the lifting rack upper end is fixed advance and retreat rack right-hand member.

Preferably, the output device comprises a rotary driving gear engaged with the front end of the crushing driving gear, a rotary shaft is fixed on the upper end of the rotary driving gear, the upper end of the rotary shaft is located in the transfer cavity, a rotary driven gear is fixed on the upper end of the rotary shaft, a rotary intermediate gear is engaged with the rear end of the rotary driven gear, the rotary intermediate gear is fixedly connected with a rotary intermediate shaft rotatably arranged in the upper end wall and the lower end wall of the transfer cavity, a rotary gear is engaged with the rear end of the rotary intermediate gear, the rotary gear is arranged on an auxiliary sleeve, the auxiliary sleeve is arranged on a main shaft in a spline fit manner, the lower end of the main shaft penetrates through a stabilizing block, the main shaft is rotatably connected with the stabilizing block, a crushing cutter is fixedly arranged at the lower end of the main shaft, an annular groove with a downward opening is formed at the lower end of the stabilizing block, the lower end of the sealing spring is connected with a sealing plate, the sealing plate is connected with the annular groove in a sliding manner, the rear end of the crushing driving gear is engaged with a pressing driving gear, the upper end of the pressing driving gear is fixed with a pressing shaft which is rotatably arranged in the upper end wall of the transmission cavity, the upper end of the pressing shaft is fixed with a pressing driven bevel gear which is positioned in the pressure cavity, the front end of the pressing driven bevel gear is engaged with an input bevel gear which is fixedly arranged on a pressure shaft which is rotatably arranged in the front end wall and the rear end wall of the pressure cavity, the front end of the pressure shaft is fixed with a left driving bevel gear, the rear part of the left driving bevel gear is provided with a right driving bevel gear which is fixed on the pressure shaft, the lower part of the left driving bevel gear is engaged with a left driven bevel gear, the lower part of the right driving bevel gear is engaged with a right driven, the lower end of the right driven bevel gear is fixedly provided with a right screw, the lower ends of the left screw and the right screw are rotatably connected into the lower end wall of the pressing cavity, a pressing plate in threaded connection with the left screw and the right screw is slidably mounted in the pressing cavity, and the lower end of the pressing plate is rotatably connected with the main shaft.

The beneficial effects are that: rock to be crushed is poured into the crushing barrel, then the transmission motor is started, the crushing barrel moves to the limit position of the right end, the clamping jaws clamp the crushing barrel, then the transmission motor rotates reversely, the crushing barrel is placed on the base, and the bottom of the crushing barrel is matched with the square fixed block, so that the manual labor of manual carrying can be reduced, the crushing barrel can be clamped in place in one step, and the working efficiency is improved;

the base is moved downwards after the crushing barrel is clamped, so that the crushing driving gear is moved downwards through the connecting middle shaft, the upper friction plate and the lower friction plate are separated from contact, and the spline is matched with the spline groove, so that the device can not work in no-load, the service life of equipment is prolonged, the base can be static in a shutdown state, and injury to personnel is avoided.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic view of a small rock breaking apparatus of the present invention;

fig. 2 is a partial left side view of the structure of fig. 1 in section.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

The invention will now be described in detail with reference to fig. 1-2, for convenience of description, the orientations described hereinafter being defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The invention relates to a small-sized rock crushing device, which comprises a machine body 1, wherein a transmission cavity 53 is arranged on the front side of the right side of the machine body 1, a transmission device is arranged in the transmission cavity 53, a pressure cavity 19 is arranged on the uppermost part in the machine body 1, a lower pressure cavity 13 is arranged below the pressure cavity 19, a transfer cavity 10 is arranged below the lower pressure cavity 13, a pulley cavity 74 with an upward opening is arranged on the left side of the transmission cavity 53, a main belt right shaft 67 is rotatably arranged on the right sides of the front end wall and the rear end wall of the pulley cavity 74, a main belt wheel 69 is fixed at the front end of the main belt right shaft 67, a main belt 72 is arranged on the main belt wheel 69, a main belt left shaft 71 rotatably connected with the front end wall and the rear end wall of the pulley cavity 74 is arranged on the left side of the main belt right shaft 67, a main belt slave belt 70 is fixed at the front, the main belt wheel 69 is connected with the main belt auxiliary belt wheel 70 through the main belt 72, an output cavity 3 is arranged behind the transmission cavity 53, an output device is arranged in the output cavity 3, a main motor 37 is arranged in the lower end wall of the output cavity 3, an output shaft 36 is connected above the main motor 37, a spline is arranged at the upper end of the output shaft 36, a crushing driving gear 34 is arranged above the output shaft 36, a spline hole is arranged at the lower end of the crushing driving gear 34, a supporting cavity 4 is arranged in the upper end wall of the output cavity 3, a connecting intermediate shaft 32 which is rotatably arranged in the upper end wall of the output cavity 3 and can slide up and down is fixed at the upper side of the crushing driving gear 34, the upper end of the connecting intermediate shaft 32 penetrates through the supporting cavity 4 to extend upwards and is fixed with a base 31, a square fixing block is fixed on the base 31, and a crushing barrel 30 which can be matched with, the supporting block 5 which is rotatably installed on the connecting intermediate shaft 32 is arranged in the supporting cavity 4 in a sliding mode, a supporting spring 33 which is connected with the lower end wall of the supporting cavity 4 is arranged at the lower end of the supporting block 5, a lower friction plate 38 is arranged on the upper end face of the crushing driving gear 34, an upper friction plate 39 is arranged on the upper end wall of the transmission cavity 53, and the lower friction plate 38 is located right below the upper friction plate 39.

Advantageously, the transmission device comprises a transmission motor 62 fixedly arranged in the left end wall of the transmission cavity 53, a transmission output shaft 61 is fixedly arranged on the right side of the transmission motor 62, a main transmission bevel gear 60 is fixedly arranged at the right end of the transmission output shaft 61, a transmission belt driving bevel gear 59 is meshed below the main transmission bevel gear 60, a transmission support shaft 57 rotatably connected with the lower end wall of the transmission cavity 53 is fixedly arranged at the lower end of the transmission belt driving bevel gear 59, a transmission driving pulley 56 is fixedly arranged in the middle of the transmission support shaft 57, a transmission belt 64 is arranged on the transmission driving pulley 56, a driven pulley shaft 65 rotatably connected with the lower end wall of the transmission cavity 53 is arranged on the left side of the transmission support shaft 57, a transmission driven pulley 63 is fixedly arranged in the middle of the driven pulley shaft 65, and the transmission driving pulley 56 is connected with the transmission driven pulley 63 through the, a main belt output bevel gear 68 is fixed at the upper end of the driven pulley shaft 65, a main belt input bevel gear 75 is engaged with the front end of the main belt output bevel gear 68, the main belt input bevel gear 75 is fixedly connected with the main belt right shaft 67, a forward and backward driving bevel gear 46 is engaged with the upper side of the driving transmission bevel gear 68, a forward and backward driving spindle 41 is fixed on the upper side of the forward and backward driving bevel gear 46, a forward and backward upper gear 40 is fixed on the upper end of the forward and backward spindle, a forward and backward lower gear 42 fixed on the forward and backward spindle 41 is arranged on the lower side of the forward and backward upper gear 40, the forward and backward spindle 41 is rotatably connected with a forward and backward spindle support 44 fixedly arranged in the left end wall of the transmission cavity 53, a rack 43 is engaged with the rear end of the forward and backward gear 42, a jaw 66 is fixed on the left side of the forward and backward rack 43, and a, a lifting spindle 48 is fixed at the right end of the lifting drive bevel gear 58, a lifting left gear 47 is fixed at the right side of the lifting spindle 48, a lifting driven gear 55 fixed on the lifting spindle 48 is arranged at the left side of the lifting left gear 47, the lifting spindle 48 is rotatably connected with a lifting spindle support 49 fixedly arranged in the rear end wall of the transmission cavity 53, a lifting intermediate gear 54 is meshed below the lifting driven gear 55, a lifting intermediate shaft 50 is fixed at the right end of the lifting intermediate gear 54, a lifting right gear 51 is fixed at the right end of the lifting intermediate shaft 50, the lifting intermediate shaft 50 is rotatably connected with a lifting intermediate shaft support 52 fixedly arranged in the lower end wall of the transmission cavity 53, a lifting rack 45 is meshed at the rear side of the lifting intermediate gear 51, and the upper end of the lifting rack 45 is fixed at the right end of the advancing and retreating rack 43.

Advantageously, the output device comprises a rotary driving gear 2 engaged with the front end of the crushing driving gear 34, a rotary shaft 6 is fixed to the upper end of the rotary driving gear 2, the upper end of the rotary shaft 6 is located in the transfer chamber 10, a rotary driven gear 9 is fixed to the upper end of the rotary shaft 6, a rotary intermediate gear 8 is engaged with the rear end of the rotary driven gear 9, the rotary intermediate gear 8 is fixedly connected with a rotary intermediate shaft 7 rotatably arranged in the upper end wall and the lower end wall of the transfer chamber 10, a rotary gear 11 is engaged with the rear end of the rotary intermediate gear 8, the rotary gear 11 is mounted on an auxiliary sleeve 73, the auxiliary sleeve 73 is spline-fitted on a main shaft 12, the lower end of the main shaft 12 penetrates through a stabilizing block 26, the main shaft 12 is rotatably connected with the stabilizing block 26, a crushing knife 29 is fixedly mounted at the lower end of the main shaft 12, and an annular groove 76 with a downward opening is formed at the lower, a sealing spring 27 is mounted on the upper end wall in the annular groove 76, a sealing plate 28 is connected to the lower end of the sealing spring 27, the sealing plate 28 is connected to the annular groove 76 in a sliding manner, a lower driving gear 35 is engaged with the rear end of the crushing driving gear 34, a lower pressing shaft 25 rotatably disposed in the upper end wall of the transmission chamber 3 is fixed to the upper end of the lower pressing gear 35, a lower pressing driven bevel gear 23 disposed in the pressure chamber 19 is fixed to the upper end of the lower pressing shaft 25, an input bevel gear 22 is engaged with the front end of the lower pressing driven bevel gear 23, the input bevel gear 22 is fixedly disposed on a pressure shaft 17 rotatably disposed in the front end wall and the rear end wall of the pressure chamber 19, a left driving bevel gear 16 is fixed to the front end of the pressure shaft 17, a right driving bevel gear 20 fixed to the pressure shaft 17 is disposed behind the left driving bevel gear 16, and a left driven bevel gear 18 is engaged with the, the lower part of the right driving bevel gear 20 is meshed with a right driven bevel gear 21, the lower end of the left driven bevel gear 18 is fixedly provided with a left screw 15, the lower end of the right driven bevel gear 21 is fixedly provided with a right screw 24, the lower ends of the left screw 15 and the right screw 24 are rotatably connected into the lower end wall of the lower pressure cavity 13, a lower pressure plate 14 in threaded connection with the left screw 15 and the right screw 24 is slidably installed in the lower pressure cavity 13, and the lower end of the lower pressure plate 14 is rotatably connected with the main shaft 12.

In the initial state, the sealing spring 27 is in a stretched state, the supporting spring 33 is in a compressed state, the upper friction plate 39 and the lower friction plate 38 are tightly attached, the spline and the spline hole are not connected, the stabilizing block 26 and the lower pressure plate 14 are both at the uppermost position of the stroke, the crushing barrel 30 is positioned at the leftmost end of the device, the advancing and retreating rack 73 is meshed with the advancing and retreating lower gear 42, the lifting rack 45 is not meshed with any gear, and the main motor 37 and the transmission motor 62 are in a closed state.

When the crusher starts to work, rocks to be crushed are poured into the crushing barrel 30, then the transmission motor 62 is started, the transmission motor 62 drives the transmission output shaft 61 to rotate, so as to drive the main transmission bevel gear 60 to rotate, so as to drive the conveyor belt drive bevel gear 59 to rotate, further drive the transmission drive pulley 56 to rotate through the transmission support shaft 57, further drive the transmission driven pulley 63 to rotate through the transmission belt 64, further drive the main belt input bevel gear 75 to rotate through the driven pulley shaft 65, further drive the main belt main pulley 69 to rotate through the main belt right shaft 67, further drive the main belt driven pulley 70 to rotate through the main belt 72, so as to enable the crushing barrel 30 to move rightwards, and meanwhile, the drive transmission bevel gear 60 drives the advancing and retreating drive bevel gear 46 to rotate, thereby driving the advancing and retreating upper gear 40 and the advancing and retreating lower gear 42 to rotate through the advancing and retreating main shaft 41, thereby driving the advancing and retreating rack 43 and the pawl 66 to move leftward, further driving the lifting rack 45 to move leftward, at the same time, the advancing and retreating drive bevel gear 46 drives the lifting drive bevel gear 58 to rotate, thereby driving the lifting driven gear 55 and the lifting left gear 47 to rotate through the lifting main shaft 48, thereby driving the lifting driven gear 55 to rotate the lifting intermediate gear 54, further driving the lifting right gear 51 to rotate through the lifting intermediate shaft 50, when the pawl 66 extends out of the transmission cavity 53, the lifting rack 45 just meshes with the lifting right gear 51, thereby driving the lifting rack 45 to move upward, thereby driving the advancing and retreating rack 43 and the pawl 66 to move upward, when the advancing and retreating rack 43 moves upwards and is engaged with the advancing and retreating upper gear 40, the advancing and retreating rack 43 continues to move leftwards, so that the lifting rack 45 moves leftwards, when the lifting rack 45 moves leftwards and is engaged with the lifting left gear 47, the lifting rack 45 starts to move downwards, so that the advancing and retreating rack 43 and the jaw 66 are driven to move downwards, at the moment, the crushing barrel 30 just moves to the right end limit position, the jaw 66 just clamps the crushing barrel 30, then the transmission motor 62 rotates reversely, so that the crushing barrel 30 is placed on the base 31 through the transmission, the bottom of the crushing barrel 30 is matched with the square fixing block, the base 31 moves downwards due to the action of gravity, so that the crushing driving gear 34 moves downwards through the connecting middle shaft 32, so that the upper friction plate 39 and the lower friction plate 38 are separated from contact and the splines and the spline grooves are engaged, the main motor 37 is turned on, thereby rotating the output shaft 36, thereby rotating the crushing driving gear 34, further rotating the base 31 through the connecting intermediate shaft 32, thereby rotating the crushing barrel 30, at the same time, the crushing driving gear 34 drives the rotating driving gear 2 and the pressing driving gear 35 to rotate, the rotating driving gear 2 drives the rotating shaft 6 to rotate, thereby rotating the rotating driven gear 9, thereby rotating the rotating intermediate gear 8, further rotating the rotating gear 11, and drives the main shaft 12 to rotate through the auxiliary sleeve 73, thereby rotating the crushing cutter 29, and at the same time, the pressing driving gear 35 drives the pressing driven bevel gear 23 to rotate through the pressing shaft 25, thereby driving the input bevel gear 22 to rotate, driving the pressure shaft 17 to rotate, further driving the left driving bevel gear 16 and the right driving bevel gear 20 to rotate, further driving the left driven bevel gear 18 and the right driven bevel gear 21 to rotate, driving the left screw 15 and the right screw 24 to rotate, thereby driving the lower platen 14 to move downwards, thereby driving the main shaft 12 to move downwards, further driving the stabilizing block 26 to move downwards, when the sealing plate 28 contacts the base 31, the crushing knife 29 enters the crushing barrel 30 to start crushing operation, the sealing spring 27 is compressed, thereby enabling the sealing plate 28 to cling to the base 31, thereby achieving the effect of continuously sealing dust, after crushing, the main motor 37 rotates reversely, and the stabilizing block 26 and the crushing knife 29 return to the initial position through transmission, the driving motor 62 is then activated, the jaw 66 is placed at the right end of the main belt 72 by the driving, and the crushing barrel 30 is returned to the original position by the movement of the main belt 72, thereby being reciprocated.

The above description is only an embodiment of the invention, but the scope of the invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.

Claims

1. A small rock breaking device, includes the organism, its characterized in that: a transmission cavity is arranged on the front side of the right side of the machine body, a transmission device is arranged in the transmission cavity, a pressure cavity is arranged on the top inside the machine body, a pressing cavity is arranged below the pressure cavity, a transfer cavity is arranged below the pressing cavity, a pulley cavity with an upward opening is arranged on the left side of the transmission cavity, a main belt right shaft is rotatably arranged on the right sides of the front end wall and the rear end wall of the pulley cavity, a main belt pulley is fixed on the front end of the main belt right shaft, a main belt is arranged on the main belt pulley, a main belt left shaft rotatably connected with the front end wall and the rear end wall of the pulley cavity is arranged on the left side of the main belt right shaft, a main belt driven pulley is fixed on the front end of the main belt left shaft, the main belt pulley is connected with the main belt driven pulley through the main belt, an output cavity is arranged on the rear side of the transmission cavity, the crushing device is characterized in that a main motor is arranged in the lower end wall of the output cavity, an output shaft is connected above the main motor, a spline is arranged at the upper end of the output shaft, a crushing driving gear is arranged above the output shaft, a spline hole is arranged at the lower end of the crushing driving gear, a supporting cavity is arranged in the upper end wall of the output cavity, a connecting intermediate shaft which is rotatably arranged in the upper end wall of the output cavity and can slide up and down is fixed at the upper side of the crushing driving gear, the upper end of the connecting intermediate shaft penetrates through the supporting cavity to extend upwards and is fixed with a base, a square fixing block is fixed on the base, a crushing barrel with the bottom end matched with the square fixing block is arranged on the base, a supporting block which is rotatably arranged on the connecting intermediate shaft is arranged in the supporting cavity, the crushing driving gear is characterized in that a lower friction plate is arranged on the upper end face of the crushing driving gear, an upper friction plate is arranged on the upper end wall of the transmission cavity, and the lower friction plate is located right below the upper friction plate.

2. A small rock breaking apparatus according to claim 1, wherein: the transmission device comprises a transmission motor fixedly arranged in the left end wall of the transmission cavity, a transmission output shaft is fixedly arranged on the right side of the transmission motor, a main transmission bevel gear is fixedly arranged at the right end of the transmission output shaft, a transmission belt driving bevel gear is meshed below the main transmission bevel gear, a transmission support shaft rotatably connected with the lower end wall of the transmission cavity is fixedly arranged at the lower end of the transmission belt driving bevel gear, a transmission driving pulley is fixedly arranged in the middle of the transmission support shaft, a transmission belt is mounted on the transmission driving pulley, a driven pulley shaft rotatably connected with the lower end wall of the transmission cavity is arranged on the left side of the transmission support shaft, a transmission driven pulley is fixedly arranged in the middle of the driven pulley shaft, the transmission driving pulley is connected with the transmission driven pulley through the transmission belt, a main belt output bevel gear is fixedly arranged at the upper end of the driven pulley shaft, and a main belt input bevel, the main belt input bevel gear is fixedly connected with the right main belt shaft, a driving and reversing driving bevel gear is meshed above the driving transmission bevel gear, a driving and reversing main shaft is fixed on the upper side of the driving and reversing driving bevel gear, a driving and reversing upper gear is fixed on the upper end of the driving and reversing main shaft, a driving and reversing lower gear fixed on the driving and reversing main shaft is arranged on the lower side of the driving and reversing upper gear, the driving and reversing main shaft is rotatably connected with a driving and reversing main shaft support fixedly arranged in the left end wall of the transmission cavity, a driving and reversing rack is meshed at the rear end of the driving and reversing lower gear, a clamping jaw is fixed on the left side of the driving and reversing rack, a lifting driving bevel gear is meshed on the right side of the driving and reversing driving bevel gear, a lifting main shaft is fixed on the right end of the lifting driving and reversing main, the lifting main shaft is rotatably connected with a lifting main shaft support fixedly arranged in the rear end wall of the transmission cavity, a lifting intermediate gear is meshed below the lifting driven gear, a lifting intermediate shaft is fixed to the right end of the lifting intermediate gear, a lifting right gear is fixed to the right end of the lifting intermediate shaft, the lifting intermediate shaft is rotatably connected with the lifting intermediate shaft support fixedly arranged in the lower end wall of the transmission cavity, a lifting rack is meshed on the rear side of the lifting right gear, and the upper end of the lifting rack is fixed to the right end of the driving and reversing rack.

3. A small rock breaking apparatus according to claim 1, wherein: the output device comprises a rotary driving gear which is connected to the front end of the crushing driving gear in a meshing manner, a rotary shaft is fixed to the upper end of the rotary driving gear, the upper end of the rotary shaft is located in the transfer cavity, a rotary driven gear is fixed to the upper end of the rotary shaft, a rotary intermediate gear is meshed to the rear end of the rotary driven gear, the rotary intermediate gear is fixedly connected with a rotary intermediate shaft which is rotatably arranged in the upper end wall and the lower end wall of the transfer cavity, the rotary gear is meshed to the rear end of the rotary intermediate gear, the rotary gear is mounted on an auxiliary sleeve, the auxiliary sleeve is mounted on a main shaft in a spline fit manner, the lower end of the main shaft penetrates through a stabilizing block, the main shaft is rotatably connected with the stabilizing block, a crushing cutter is fixedly mounted at the lower end of the main shaft, an annular groove with a downward opening is formed, the lower end of the sealing spring is connected with a sealing plate, the sealing plate is connected with the annular groove in a sliding manner, the rear end of the crushing driving gear is engaged with a pressing driving gear, the upper end of the pressing driving gear is fixed with a pressing shaft which is rotatably arranged in the upper end wall of the transmission cavity, the upper end of the pressing shaft is fixed with a pressing driven bevel gear which is positioned in the pressure cavity, the front end of the pressing driven bevel gear is engaged with an input bevel gear which is fixedly arranged on a pressure shaft which is rotatably arranged in the front end wall and the rear end wall of the pressure cavity, the front end of the pressure shaft is fixed with a left driving bevel gear, the rear part of the left driving bevel gear is provided with a right driving bevel gear which is fixed on the pressure shaft, the lower part of the left driving bevel gear is engaged with a left driven bevel gear, the lower part of the right driving bevel gear is engaged with a right driven, the lower end of the right driven bevel gear is fixedly provided with a right screw, the lower ends of the left screw and the right screw are rotatably connected into the lower end wall of the pressing cavity, a pressing plate in threaded connection with the left screw and the right screw is slidably mounted in the pressing cavity, and the lower end of the pressing plate is rotatably connected with the main shaft.