阅读说明：本技术 一种机砂碎石比大范围可调的冲击式破碎装置 (Impact type crushing device with machine sand-gravel ratio adjustable in large range ) 是由 张裕豪 于 2021-08-30 设计创作，主要内容包括：本发明公开了一种机砂碎石比大范围可调的冲击式破碎装置,包括破碎机体,破碎机体设有第一落料通道和第二落料通道,第一落料通道连接有第一进料机构,第二落料通道连接有第二进料机构；破碎机体内设有转子机构,转子机构的外侧设有破碎腔；还包括控制器,控制器用于控制转子机构的转速以及分别控制第一进料机构和第二进料机构的进料速度,以调节机砂碎石比。本发明通过调节第一进料机构和第二进料机构的进料获得不同进料流量比,而且通过调节转子机构的转速以调整物料碰撞状态,其能够实现机砂碎石比的大范围可控可调,而且能够获得不同机砂碎石比的成品料,该成品料可直接应用于混凝土的加工中,可大大提高混凝土的加工效率。(The invention discloses an impact type crushing device with a machine sand-gravel ratio adjustable in a large range, which comprises a crusher body, wherein the crusher body is provided with a first blanking channel and a second blanking channel, the first blanking channel is connected with a first feeding mechanism, and the second blanking channel is connected with a second feeding mechanism; a rotor mechanism is arranged in the crusher body, and a crushing cavity is arranged on the outer side of the rotor mechanism; the sand-gravel mixing device further comprises a controller, wherein the controller is used for controlling the rotating speed of the rotor mechanism and respectively controlling the feeding speeds of the first feeding mechanism and the second feeding mechanism so as to adjust the sand-gravel ratio. According to the invention, different feeding flow ratios are obtained by adjusting the feeding of the first feeding mechanism and the second feeding mechanism, and the material collision state is adjusted by adjusting the rotating speed of the rotor mechanism, so that the machine sand-gravel ratio can be controlled and adjusted in a large range, and finished materials with different machine sand-gravel ratios can be obtained, and can be directly applied to the processing of concrete, so that the processing efficiency of the concrete can be greatly improved.)

1. The impact type crushing device with the machine sand-gravel ratio adjustable in a large range comprises a crusher body (1) and is characterized in that the crusher body (1) is provided with a first blanking channel (2) and a second blanking channel (3), the first blanking channel (2) is connected with a first feeding mechanism (4), and the second blanking channel (3) is connected with a second feeding mechanism (5); a rotor mechanism is arranged in the crusher body (1), a crushing cavity (6) is arranged on the outer side of the rotor mechanism, and a discharge hole (7) communicated with the crushing cavity (6) is formed in the crusher body (1); the first blanking channel (2) is annularly distributed on the outer side of the second blanking channel (3), the first blanking channel (2) is communicated with the crushing cavity (6), and the second blanking channel (3) is communicated with the inside of the rotor mechanism; the sand-gravel mixing machine is characterized by further comprising a controller, wherein the rotor mechanism, the first feeding mechanism (4) and the second feeding mechanism (5) are all connected with the controller, and the controller is used for controlling the rotating speed of the rotor mechanism and controlling the feeding speeds of the first feeding mechanism (4) and the second feeding mechanism (5) respectively so as to adjust the sand-gravel ratio.

2. An impact crusher device with a widely adjustable grit ratio according to claim 1, characterized in that said first feeding means (4) comprises a first conveyor belt equipped with first driving means; the second feeding mechanism (5) comprises a second conveying belt, a second driving mechanism is arranged on the second conveying belt in a matched mode, and the second driving mechanism and the first driving mechanism are both connected with the controller.

3. The impact crusher with the machine-sand-gravel ratio being adjustable in a large range as claimed in claim 2, wherein the controller is connected with a discharge regulation module for regulating the machine-sand-gravel ratio, and the controller controls the first driving mechanism and the second driving mechanism to operate to feed the first conveying belt and the second conveying belt according to different speed ratios and controls the rotation speed of the rotor mechanism to regulate the machine-sand-gravel ratio based on the machine-sand-gravel ratio regulated by the discharge regulation module.

4. The impact crusher with widely adjustable grit ratio of claim 2, characterized in that said first driving mechanism comprises a first driving motor, a first driving transmission wheel and a first driven transmission wheel, said first driving motor is connected with said controller, an output shaft of said first driving motor is connected with said first driving transmission wheel, said first driving transmission wheel and said first driven transmission wheel are connected through a first transmission belt, said controller is used for controlling the rotation speed of said first driving motor to make said first transmission belt convey material to said first blanking channel (2) at different speeds.

5. The impact crusher with widely adjustable mechanical sand-gravel ratio of claim 4, wherein the second driving mechanism comprises a second driving motor, a second driving transmission wheel and a second driven transmission wheel, the second driving motor is connected with the controller, an output shaft of the second driving motor is connected with the second driving transmission wheel, the second driving transmission wheel and the second driven transmission wheel are connected through a second transmission belt, and the controller is used for controlling the rotation speed of the second driving motor to enable the second transmission belt to convey materials to the second blanking channel (3) at different speeds.

6. Impact crusher with widely adjustable grit ratio according to claim 1, characterized in that above said rotor means there is a guide for the material of the first blanking channel (2) into the crushing chamber (6).

7. The impact crushing device with the widely adjustable machine-sand-gravel ratio of claim 6, wherein the material guiding member comprises a material guiding cone (8), a first material guiding barrel (9) is arranged at the top of the material guiding cone (8), and the first blanking channel (2) is arranged in the first material guiding barrel (9); and a second material guide cylinder (10) is arranged at the bottom of the material guide cone (8), and the second blanking channel (3) is arranged in the second material guide cylinder (10).

8. The impact crushing device with the wide adjustable sand-gravel ratio of claim 1, wherein the rotor mechanism comprises an impeller (11), the impeller (11) is provided with an impact block (12), the impeller (11) is connected with a fixed seat (13), the fixed seat (13) is connected with a third driving mechanism for driving the fixed seat (13) to rotate, and the third driving mechanism is connected with a controller.

9. The impact crushing device with the widely adjustable sand-gravel ratio of claim 8, wherein the third driving mechanism comprises a third driving motor (14), a driving pulley (15), a driven pulley (16) and a synchronous belt (17), the output shaft of the third driving motor (14) is connected with the driving pulley (15), the driving pulley (15) is connected with the driven pulley (16) through the synchronous belt (17), the driven pulley (16) is connected with a crushing main shaft (18), the end of the crushing main shaft (18) is connected with the fixed seat (13), and the controller is used for controlling the rotating speed of the third driving motor (14) to enable the materials inside the impeller (11) to be thrown out at different speeds and to collide with the materials in the crushing cavity (6) for crushing.

10. The impact crusher with a widely adjustable machine-sand-gravel ratio as claimed in claim 1, characterized in that a counterattack lining (19) is arranged in the crusher body (1), and the counterattack lining (19) is annularly arranged on the side wall of the crushing cavity (6).

Technical Field

The invention relates to the technical field of construction equipment, in particular to an impact type crushing device with a large-range adjustable machine sand-gravel ratio.

Background

The concrete is called concrete (t xi ng) for short, which is a general name of engineering composite materials formed by cementing aggregate into a whole by cementing materials. The term concrete generally refers to cement as a cementing material and sand and stone as aggregate; the cement concrete is also called as common concrete and is obtained by mixing the cement concrete and water (which can contain additives and admixture) according to a certain proportion and stirring. Because the concrete has the characteristics of rich raw materials, low price, simple production process, high compressive strength, good durability, wide strength grade range and the like, the application range of the concrete is very wide.

In the processing of concrete, a grit material is essential. At present, the production of sand and stone materials is widely applied to an impact crusher, the impact crusher is also called a sand making machine, and the impact crusher is widely applied to medium crushing and fine crushing of various hard and brittle materials such as various rocks, quartz stone, iron ore, concrete aggregate and the like, and the crushing mode is divided into a stone breaking mode and a stone breaking mode. The existing impact crusher mainly comprises a material distribution hopper, a rotor protection cover, a rotor, an inner lining plate, a bottom plate and a crusher shell, and the blanking mode is mainly realized in the following mode: the material enters a material distribution hopper, enters a rotor rotating at a high speed through a center hole, is sufficiently accelerated and is thrown out to form a first material flow; the first material flow directly collides with the crushing cavity to form 'stone beating iron'; the material is thrown out from the periphery of the outer side of the guide cone to form a second material flow, the second material flow directly falls to the crushing cavity and collides with the first material flow in the crushing cavity to form a stone-breaking effect. Because the rotating speed of the rotor of the existing impact crusher is fixed, the maximum grain diameter of the input raw materials is also fixed, the ratio of the machine sand to the crushed stone in the finished product materials is fixed, the large-range adjustment of the ratio of the machine sand to the crushed stone cannot be realized, and the use requirement of concrete is difficult to meet.

Disclosure of Invention

The invention aims to provide an impact type crushing device with a machine sand-gravel ratio adjustable in a large range, and solves the problems that the impact type crushing device in the prior art cannot adjust the machine sand-gravel ratio, the machine sand-gravel ratio in a finished product material is fixed, and the use requirement of concrete is difficult to meet.

In order to achieve the purpose, the invention adopts the following technical scheme: an impact type crushing device with a machine sand-gravel ratio adjustable in a large range comprises a crusher body, wherein the crusher body is provided with a first blanking channel and a second blanking channel, the first blanking channel is connected with a first feeding mechanism, and the second blanking channel is connected with a second feeding mechanism; a rotor mechanism is arranged in the crusher body, a crushing cavity is arranged on the outer side of the rotor mechanism, and the crusher body is provided with a discharge hole communicated with the crushing cavity; the first blanking channel is annularly distributed on the outer side of the second blanking channel and is communicated with the crushing cavity, the second blanking channel is communicated with the inside of the rotor mechanism, and the rotor mechanism is used for accelerating the materials conveyed by the second blanking channel to be thrown out to collide with the inner wall of the crushing cavity or collide and crush the materials conveyed into the crushing cavity by the first blanking channel; the machine sand-gravel ratio adjusting device is characterized by further comprising a controller, wherein the rotor mechanism, the first feeding mechanism and the second feeding mechanism are all connected with the controller, and the controller is used for controlling the rotating speed of the rotor mechanism and controlling the feeding speeds of the first feeding mechanism and the second feeding mechanism respectively so as to adjust the machine sand-gravel ratio.

As an alternative of the invention, the first feeding mechanism comprises a first conveyor belt provided with a first drive mechanism; the second feed mechanism includes the second transmission band, the second transmission band sets and has set second actuating mechanism, second actuating mechanism and first actuating mechanism all with the controller is connected.

As an alternative of the invention, the controller is connected with a discharge regulation and control module for regulating and controlling the machine sand-gravel ratio, and the controller controls the first driving mechanism and the second driving mechanism to operate to feed the first conveying belt and the second conveying belt according to different speed ratios and controls the rotating speed of the rotor mechanism to regulate the machine sand-gravel ratio based on the machine sand-gravel ratio regulated and controlled by the discharge regulation and control module.

As an alternative of the present invention, the first driving mechanism includes a first driving motor, a first driving transmission wheel and a first driven transmission wheel, the first driving motor is connected to the controller, an output shaft of the first driving motor is connected to the first driving transmission wheel, the first driving transmission wheel and the first driven transmission wheel are connected by a first transmission belt, and the controller is configured to control a rotation speed of the first driving motor so that the first transmission belt conveys the material to the first blanking channel at different speeds.

As an alternative of the invention, the second driving mechanism includes a second driving motor, a second driving transmission wheel and a second driven transmission wheel, the second driving motor is connected to the controller, an output shaft of the second driving motor is connected to the second driving transmission wheel, the second driving transmission wheel and the second driven transmission wheel are connected by a second transmission belt, and the controller is configured to control a rotation speed of the second driving motor so that the second transmission belt conveys materials to the second blanking channel at different speeds.

As an alternative of the invention, a material guiding member is arranged above the rotor mechanism, and the material guiding member is used for guiding the material of the first blanking channel into the crushing cavity.

As an alternative of the invention, the material guiding member comprises a material guiding cone, a first material guiding cylinder is arranged at the top of the material guiding cone, and a first material dropping channel is arranged in the first material guiding cylinder; and a second material guide cylinder is arranged at the bottom of the material guide cone, and a second blanking channel is arranged in the second material guide cylinder.

As an alternative of the present invention, the rotor mechanism includes an impeller, the impeller is provided with an impact block, the impeller is connected to a fixed seat, the fixed seat is connected to a third driving mechanism for driving the fixed seat to rotate, and the third driving mechanism is connected to the controller.

As an alternative of the invention, the third driving mechanism comprises a third driving motor, a driving pulley, a driven pulley and a synchronous belt, an output shaft of the third driving motor is connected with the driving pulley, the driving pulley is connected with the driven pulley through the synchronous belt, the driven pulley is connected with a crushing main shaft, the end of the crushing main shaft is connected with the fixed seat, and the controller is used for controlling the rotating speed of the third driving motor to enable the material inside the impeller to be thrown out at different speeds and collide with the material in the crushing cavity for crushing.

As an alternative of the invention, a reaction lining plate is arranged in the crusher body, and the reaction lining plate is annularly arranged on the side wall of the crushing cavity.

The invention has the beneficial effects that:

the invention provides an impact type crushing device with a machine sand-gravel ratio adjustable in a large range. According to the invention, different feeding flow ratios are obtained by adjusting the feeding of the first feeding mechanism and the second feeding mechanism, and the material collision state is adjusted by adjusting the rotating speed of the rotor mechanism, so that the machine sand-gravel ratio can be controlled and adjusted in a large range, and finished materials with different machine sand-gravel ratios can be obtained, and can be directly applied to the processing of concrete, so that the processing efficiency of the concrete can be greatly improved.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic view of the internal structure of a crusher body according to an embodiment of the present invention.

In the figure: 1-crusher body; 2-a first blanking channel; 3-a second blanking channel; 4-a first feeding mechanism; 5-a second feeding mechanism; 6-a crushing cavity; 7-discharging port; 8-a material guide cone; 9-a first material guide cylinder; 10-a second material guide cylinder; 11-an impeller; 12-an impact block; 13-a fixed seat; 14-a third drive motor; 15-driving pulley; 16-a driven pulley; 17-a synchronous belt; 18-a crushing main shaft; 19-counterattack lining board.

Detailed Description

The existing impact crusher mainly comprises a material distribution hopper, a rotor protection cover, a rotor, an inner lining plate, a bottom plate and a crusher shell, and the blanking mode is mainly realized in the following mode: the material enters a material distribution hopper, enters a rotor rotating at a high speed through a center hole, is sufficiently accelerated and is thrown out to form a first material flow; the first material flow directly collides with the crushing cavity to form 'stone beating iron'; the material is thrown out from the periphery of the outer side of the guide cone to form a second material flow, the second material flow directly falls to the crushing cavity and collides with the first material flow in the crushing cavity to form a stone-breaking effect. Because the rotating speed of the rotor of the existing impact crusher is fixed, the maximum grain diameter of the input raw materials is also fixed, the ratio of the machine sand to the crushed stone in the finished product materials is fixed, the large-range adjustment of the ratio of the machine sand to the crushed stone cannot be realized, and the use requirement of concrete is difficult to meet.

In order to solve the above problems, as shown in fig. 1 and fig. 2, the invention provides an impact crushing device with a machine sand-gravel ratio being adjustable in a large range, which comprises a crusher body 1, wherein a first blanking channel 2 and a second blanking channel 3 are arranged at the top of the crusher body 1, the first blanking channel 2 is connected with a first feeding mechanism 4, and the second blanking channel 3 is connected with a second feeding mechanism 5. The first feeding mechanism 4 is used for conveying materials to the first blanking channel 2, and the second feeding mechanism 5 is used for conveying materials to the second blanking channel 3.

The crusher is characterized in that a rotor mechanism is arranged in the crusher body 1, a crushing cavity 6 is arranged on the outer side of the rotor mechanism, the crusher body 1 is provided with a discharge port 7 communicated with the crushing cavity 6, the discharge port 7 is located at the bottom of the crushing cavity 6, and the discharge port 7 is used for discharging crushed materials. The first blanking channel 2 is annularly distributed on the outer side of the second blanking channel 3, the first blanking channel 2 is communicated with the crushing cavity 6, the second blanking channel 3 is communicated with the inside of the rotor mechanism, and the rotor mechanism is used for accelerating the material conveyed by the second blanking channel 3 to be thrown out to collide with the inner wall of the crushing cavity 6 or to collide and crush the material conveyed into the crushing cavity 6 by the first blanking channel 2. The invention is provided with a first blanking channel 2 and a second blanking channel 3, a first feeding mechanism 4 and a second feeding mechanism 5 respectively convey materials to the first blanking channel 2 and the second blanking channel 3, the materials in the first blanking channel 2 enter a crushing cavity 6 and move downwards, the materials in the second blanking channel 3 enter a rotor mechanism and move transversely under the centrifugal action of the rotor mechanism, and the transversely moving materials collide with the inner wall of the crushing cavity 6 and collide with the downwardly moving materials in the first blanking channel 2, so that the crushing effects of 'stone beating' and 'stone beating iron' are formed. The invention has good crushing effect and more uniform discharging, improves the working efficiency of the crushing device, effectively prolongs the service life of the crushing device and reduces the production and use cost.

The impact crushing device further comprises a controller, wherein the rotor mechanism, the first feeding mechanism 4 and the second feeding mechanism 5 are all connected with the controller, and the controller is used for controlling the rotating speed of the rotor mechanism and controlling the feeding speeds of the first feeding mechanism 4 and the second feeding mechanism 5 respectively so as to adjust the sand-gravel ratio. The controller can control the rotating speed of the rotor mechanism, the feeding speed of the first feeding mechanism 4 and the feeding speed of the second feeding mechanism 5 independently, and large-range controllability and adjustability of the machine sand-gravel ratio can be achieved, so that machine sand and gravel meeting the use requirements of concrete can be obtained. According to the invention, different feeding flow ratios are obtained by adjusting the feeding of the first feeding mechanism 4 and the second feeding mechanism 5, and the material collision state is adjusted by adjusting the rotating speed of the rotor mechanism, so that the machine sand-gravel ratio can be controlled and adjusted in a large range, and finished materials with different machine sand-gravel ratios can be obtained.

As shown in fig. 1, in particular, the first feeding mechanism 4 comprises a first conveyor belt equipped with a first driving mechanism, which is connected to a controller; second feed mechanism 5 includes the second transmission band, the second transmission band has set second actuating mechanism, second actuating mechanism with the controller is connected, the controller is used for controlling the feed speed of first transmission band through first actuating mechanism to and the feed speed of second transmission band through second actuating mechanism control, with the regulation machine sand rubble ratio. The first conveying belt and the second conveying belt are used for feeding materials simultaneously, after the materials are accelerated by the rotor mechanism, the materials which move transversely are thrown out and collide and are crushed with the materials which move downwards in the crushing cavity 6 (the 'stone beating', and in the 'stone beating' state, the proportion between machine sand and broken stone in the finished product materials obtained by the discharge port 7 is large (the machine sand-broken stone ratio); if the crushing cavity 6 has no downward moving material, namely the first conveying belt stops feeding, the feeding is only carried out through the second conveying belt, the material which moves transversely is thrown out and collides with the inner wall of the crusher body 1 for crushing (the 'stone beating iron'), and the proportion between the machine sand and the broken stones in the finished product material obtained by the discharge port 7 is smaller (the machine sand-broken stone ratio) in the 'stone beating iron' state. Based on the technical scheme, the feeding speed of the first conveying belt and the feeding speed of the second conveying belt are regulated and controlled through the controller, so that the machine sand-gravel ratio is regulated.

In order to strengthen the crushing effect of "stone is hit iron", be equipped with impact liner board 19 in the breaker body 1, and impact liner board 19 is cyclic annular setting at 6 lateral walls of broken chamber, stops the feeding at first transmission band, when only passing through the feeding of second transmission band, transverse motion's material is thrown away the back and is collided with impact liner board 19 in the breaker body 1, breaker body 1 has obtained effectual protection, has improved the life of breaker body 1, has improved broken quality and efficiency moreover.

In this embodiment, the controller is connected with the ejection of compact regulation and control module that is used for the regulation and control machine sand rubble ratio, the machine sand rubble ratio that the controller was regulated and control module based on the ejection of compact regulation and control, the first actuating mechanism of control and second actuating mechanism operation are carried out the feed according to different speed ratios with first conveyer belt and second conveyer belt to and control rotor mechanism rotational speed is in order to adjust machine sand rubble ratio. The discharging regulation and control module is used as a control panel of the controller, and a user can conveniently regulate and control the machine sand-gravel ratio of the finished product material. The invention can regulate and control the flow of the blanking of the first conveying belt and the throwing of the second conveying belt, adjust different flow ratios, adjust the rotating speed of the rotor mechanism and adjust the collision state of the materials to obtain finished materials with different machine sand-gravel ratios, and can be directly applied to the processing of concrete.

Specifically, the first driving mechanism comprises a first driving motor, a first driving transmission wheel and a first driven transmission wheel, the first driving motor is connected with the controller, an output shaft of the first driving motor is connected with the first driving transmission wheel, the first driving transmission wheel is connected with the first driven transmission wheel through a first transmission belt, and the controller is used for controlling the rotating speed of the first driving motor to enable the first transmission belt to convey materials to the first blanking channel 2 at different speeds. The second driving mechanism comprises a second driving motor, a second driving transmission wheel and a second driven transmission wheel, the second driving motor is connected with the controller, an output shaft of the second driving motor is connected with the second driving transmission wheel, the second driving transmission wheel and the second driven transmission wheel are connected through a second transmission belt, and the controller is used for controlling the rotating speed of the second driving motor to enable the second transmission belt to convey materials to the second blanking channel 3 at different speeds, so that the conveying is convenient, and the transmission efficiency is high. And the storage hoppers are arranged above the first conveying belt and the second conveying belt and respectively supply materials to the first conveying belt and the second conveying belt. The first driving motor and the second driving motor both adopt variable frequency motors, and the rotating speeds of the first driving motor and the second driving motor are controlled by the controller.

In this embodiment, a material guiding member is arranged above the rotor mechanism, and the material guiding member is used for guiding the material of the first blanking channel 2 into the crushing cavity 6. Specifically, the material guiding member includes a material guiding cone 8, a first material guiding cylinder 9 is arranged at the top of the material guiding cone 8, the first blanking channel 2 is arranged in the first material guiding cylinder 9, a second material guiding cylinder 10 is arranged at the bottom of the material guiding cone 8, and the second blanking channel 3 is arranged in the second material guiding cylinder 10. The top end of the first material guiding cylinder 9 is used as a blanking port of the first conveying belt, and the material of the first conveying belt falls down along the first material guiding cylinder 9, enters the annular crushing cavity 6 after being dispersed by the material guiding cone 8, and then moves downwards in the crushing cavity 6. The top end of the second guide cylinder 10 is used as a blanking port of the second transmission belt, materials of the second transmission belt drop downwards along the second guide cylinder 10 and then enter the rotor mechanism, the rotor mechanism accelerates the materials and then transversely throws the materials, the materials moving transversely collide with the materials moving downwards in the crushing cavity 6, and then the stone breaking and crushing treatment of the materials is realized or the materials directly collide with the cavity wall to realize the stone breaking and crushing treatment. According to the invention, the first blanking channel 2 and the second blanking channel 3 are arranged, so that a vertically downward material waterfall is formed on the peripheral side of the rotor mechanism, and the material waterfall is positioned on a path of the rotor mechanism for transversely throwing out materials, so that the collision crushing effect is greatly enhanced.

As shown in fig. 2, specifically, the rotor mechanism includes an impeller 11, an impact block 12 is mounted on the impeller 11, the impeller 11 is connected to a fixed seat 13, the fixed seat 13 is connected to a third driving mechanism for driving the fixed seat 13 to rotate, and the third driving mechanism is connected to the controller. The top opening of the impeller 11 facilitates the falling of the material inside the impeller 11. The third driving mechanism drives the impeller 11 to rotate, so that the impeller 11 accelerates the material to be thrown out. Because the impact block 12 is arranged on the impeller 11, when the material is thrown out at an accelerated speed, part of the material collides with the impact block 12 firstly, the crushing effect is effectively improved, and the impeller 11 is protected.

The third driving mechanism comprises a third driving motor 14, a driving pulley 15, a driven pulley 16 and a synchronous belt 17, an output shaft of the third driving motor 14 is connected with the driving pulley 15, the driving pulley 15 is connected with the driven pulley 16 through the synchronous belt 17, the driven pulley 16 is connected with a crushing main shaft 18, and the end part of the crushing main shaft 18 is connected with the fixed seat 13. Broken main shaft 18 passes through the bearing and installs in breaker organism 1, and the bottom of broken main shaft 18 sets up from the driving pulley 16, and the top and the fixing base 13 fixed connection of broken main shaft 18, its stable in structure, rotor mechanism throw the material smooth and easy, guarantee breaker's damaged efficiency.

Under the condition that the particle size of the fed material is larger, the controller controls the third driving motor 14 to operate at a low speed, and the crushing device crushes and repairs the material, so that needle-shaped crushed stone can be prevented from being formed, and crushed stone with good particle appearance is generated; under the condition that the particle size of the material feeding is small, the controller controls the third driving motor to run at a high speed, and the finished material with controllable sand-gravel ratios and coarse-fine sand ratios of different machines is obtained by regulating and controlling different rotating speeds of the first driving motor and the second driving motor.

In the description of the present invention, the terms "mounted," "connected," "fixed," and the like are to be understood broadly and may be fixedly connected, detachably connected, or integrated; may be a mechanical or electrical connection; either directly or indirectly through intervening media, either internally or in any other relationship. Those skilled in the art will understand the specific meaning of the above terms in the present invention. Furthermore, the particular features, structures, etc. described in the examples can be included in at least one implementation and can be combined by one skilled in the art without conflicting therewith. The protection scope of the present invention is not limited to the above specific examples, and embodiments that can be imagined by those skilled in the art without creative efforts based on the basic technical concept of the present invention belong to the protection scope of the present invention.