CN109622178B

CN109622178B - Double-machine self-synchronous driving balanced type vibration crusher

Info

Publication number: CN109622178B
Application number: CN201811542165.6A
Authority: CN
Inventors: 张学良; 张晨; 李明; 张旭; 李振民; 马辉; 闻邦椿
Original assignee: Northeastern University China
Current assignee: Northeastern University China
Priority date: 2018-12-17
Filing date: 2018-12-17
Publication date: 2020-08-04
Anticipated expiration: 2038-12-17
Also published as: CN109622178A

Abstract

The invention belongs to the field of self-synchronizing vibration machines, and provides a double-machine self-synchronizing driving balanced type vibration crusher which comprises two groups of vibration exciters, two groups of main vibration springs, two supporting bodies, two jaw plates, two groups of vibration reduction springs and vibration isolators, wherein the two groups of main vibration springs are arranged on the two supporting bodies; the double-motor self-synchronizing principle is utilized for driving, when materials are crushed, the two vibration exciters are driven by the alternating current motor to drive the eccentric rotor to reversely rotate at a high speed to generate exciting force, so that the movable jaws are driven to realize opposite-phase relative motion, the force of the two movable jaws in the horizontal direction is mutually offset, a self-balancing state is realized, the load transmitted in the horizontal direction is ensured to be minimum, and the materials between the two movable jaws are crushed. The invention combines the sub-resonance principle and the double-vibration exciter self-synchronization principle, realizes very high crushing strength of the crusher by using a vibration crushing mode, enhances the stability of a system, realizes energy conservation of the crusher and the like. The crusher can reach a larger crushing ratio and can crush ultra-hard materials.

Description

Double-machine self-synchronous driving balanced type vibration crusher

Technical Field

The invention belongs to the field of self-synchronizing vibration machinery, and relates to a double-machine self-synchronizing drive balanced type vibration crusher.

Background

The crusher is an apparatus for crushing mined natural stones according to specific requirements. In 1858, american engineers e.w.blake invented a first jaw crusher; the traditional jaw crusher has the advantages of convenient operation, simple structure, convenient maintenance, reliable work, low price and the like, so the jaw crusher has wide application in various industrial fields. The vibration crusher utilizes the vibration principle, generates the excitation torque through the vibration motor, enables the stone to vibrate according to a certain rule, and achieves the purpose of crushing materials through mutual collision and friction. From the appearance of first breaker, the production efficiency of mill has had certain promotion, also satisfies the safety condition simultaneously for production has promoted the ability of smashing the operation.

The crusher can be divided into a medical crusher and a mining crusher according to the use types, wherein the medical crusher is mainly used for crushing stones, and generally adopts modes such as resonance to crush the stones, so that various risks caused by operations are avoided. According to the crushing principle, the common crushing machinery of the heavy mining machinery comprises a jaw crusher, an impact crusher, a hammer crusher, a roller crusher, a combined crusher, a cone crusher, a mobile crusher and the like. The jaw crusher simulates the movement of two jaws of an animal to realize crushing operation, and is widely applied to crushing of various materials in the industries of mine smelting, building materials, railways, water conservancy, chemical engineering and the like. The vibration crusher utilizes the vibration principle, and the vibration motor generates the excitation torque to make stones vibrate according to a certain vibration rule, so that the aim of crushing sand grains is fulfilled by mutual collision and friction.

Currently, the crushers currently in use also have the following drawbacks: the crushing cavity is only provided with one movable jaw body, the motor drives the crushing cavity to work in a single direction, the vertical stroke of the crushing cavity is large, materials are subjected to local grinding and stripping effects when the crushing cavity is subjected to extrusion, so that the jaw plate is easy to wear and tear due to the reaction force of the jaw plate, meanwhile, most of crushers use the high-power motor as a power source, the energy consumption accounts for 50% of the power consumption of the whole plant of a concentrating mill, the crushing rate of the working process is low, the energy consumption is high, the stability is poor, and the national energy-saving, emission-reducing and environment-friendly requirements are not met. And the lines need to be laid before use, the installation process is complex, and the conditions for the qualification of installers and operators are severe.

Disclosure of Invention

The invention overcomes the defects in the background technology and provides the double-machine self-synchronous driving balanced type vibration crusher with high crushing rate, low energy consumption and strong stability.

The technical scheme of the invention is as follows:

a double-machine self-synchronous driving balanced type vibration crusher is of a symmetrical structure along the axis of a crushing channel and comprises two groups of vibration exciters, two groups of main vibration springs, two supporting bodies, two jaw plates, two groups of vibration reduction springs and vibration isolators; the vibration exciters are composed of an alternating current motor and an eccentric rotor, the two vibration exciters are symmetrically arranged inside the crusher, each vibration exciter is connected with a corresponding jaw plate, the two jaw plates are open at the lower part and form a V-shaped cavity with a wide upper part and a narrow lower part to form a crushing channel, and the two jaw plates are respectively connected with a main vibration spring through a supporting body; the main vibration spring is a rubber spring, the main vibration spring is connected with the vibration isolator through a supporting structure, and the vibration isolator is connected with the foundation through a vibration reduction spring; the vibration reduction springs are connected with the vibration isolators and are respectively arranged at the corner positions of the base, when materials are crushed, the alternating current motor drives the eccentric rotor to reversely rotate at high speed (the rotation period can be controlled by the output power of the motor) to generate exciting force, the phase difference between the two vibration exciters is stabilized at 0 degree, so that the two jaw plates are driven to realize opposite-phase linear relative motion in the horizontal direction, certain extrusion force is formed, and the crushing of the materials between the two movable jaws is realized.

Furthermore, the two vibration exciters are symmetrically arranged inside the crusher and adjusted to be symmetrically arranged outside the crusher, each vibration exciter is connected with the corresponding supporting body extending out of the outer end of the crusher, and the inner end of the supporting body is connected with the jaw plate.

Furthermore, each vibration exciter is connected with a corresponding pendulum bob, the pendulum bob is connected with a corresponding jaw plate through a torsion spring, when materials are crushed, an alternating current motor drives an eccentric rotor to reversely rotate at high speed (the rotation period can be controlled by the output power of the motor), an exciting force is generated, the phase difference between the two vibration exciters is stabilized at 0 degree, so that the two pendulum bob are driven to synchronously swing at a reverse position (the swing angle can be controlled by the rotation frequency of the vibration exciters), the phase difference between the two pendulum bob is also stabilized at 0 degree, and then the two jaw plates are driven to linearly move at a reverse phase in the horizontal direction, and a certain extrusion force is formed, thereby the materials between the two movable jaws are crushed.

Furthermore, the two vibration exciters are symmetrically arranged inside the crusher and adjusted to be symmetrically arranged outside the crusher, each vibration exciter is connected with a corresponding pendulum bob, the pendulum bob is connected with a corresponding supporting body through a torsion spring, the supporting body extends out of the outer end of the crusher, and the inner end of the supporting body is connected with the jaw plate.

Furthermore, the main vibration springs are divided into two groups, and each group is arranged in a spring seat hole of the support body and is fixed.

The invention has the beneficial effects that:

it carries out crushing work to move the jaw with traditional one and move the jaw crushing chamber into two, adopts two to move the mode that the jaw worked simultaneously, and the effective broken stroke increase of material has increased the number of times that the material receives the impact in broken chamber, and the vertical stroke is little, has reduced wearing and tearing, and the breaker work has improved entire system's energy-conservation nature in the sub-resonance state.

The double-motor self-synchronizing principle is adopted for driving, the alternating current motor drives the eccentric rotor, the two vibration exciters rotate reversely at high speed to generate exciting force, and the phase difference between the exciting force and the exciting force is stabilized at 0, so that the two movable jaws are driven to realize opposite-phase relative motion, each movable jaw has the same speed in the same direction, the materials are bitten into the movable jaws, and the materials between the two movable jaws are crushed. The double-motor self-synchronizing principle is utilized for driving, so that the mechanical structure is more compact, the installation position is more convenient, and the stability of the system is stronger.

The mode of vibration crushing is adopted, the relative displacement of the two movable jaws in the vertical direction is zero, the relative displacement in the horizontal direction is multiplied, the larger crushing ratio can be achieved, and the superhard material (such as chromium alloy ore) can be crushed.

The two movable jaws move in opposite phases, so that the forces of the two movable jaws in the horizontal direction are mutually offset, a self-balancing state is realized, and the load transmitted in the horizontal direction is ensured to be minimum.

Drawings

FIG. 1 is a structural view of example 1;

FIG. 2 is a structural view of embodiment 2;

FIG. 3 is a structural view of embodiment 3;

FIG. 4 is a structural view of embodiment 4;

in the figure, 1 left support; 2, a left main vibration spring; 3, a left vibration exciter; 4, a left jaw plate; 5, a right jaw plate; 6, a right vibration exciter; 7, a right main vibration spring; 8, a right support body; 9 a damping spring; 10 vibration isolator; 11, swinging the ball leftwards; 12, a left swing link; 13 a right swing rod; 14 right pendulum ball, 15 torsion spring, 16 left pendulum and 17 right pendulum.

Detailed Description

The technical solution of the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

In fig. 1, left vibration exciter 3 and right vibration exciter 6 are the vibration exciters of a pair of symmetrical arrangement, left pendulum ball 11 and left pendulum rod 12 are installed on left vibration exciter 3, right pendulum rod 13 and right pendulum ball 14 are installed on right vibration exciter 6, place left jaw 4 in left vibration exciter 3 in, left jaw 4 is connected with left main vibrating spring 2 through left supporter 1, place right jaw 5 in right vibration exciter 6 in, right jaw 5 is connected with right main vibrating spring 7 through right supporter 8, two main vibrating springs are installed respectively in the both sides of isolator 10, isolator 10 both sides are connected with the basis through damping spring 9.

In fig. 2, the left vibration exciter 3 and the right vibration exciter 6 are a pair of vibration exciters symmetrically installed, the left pendulum ball 11 and the left pendulum ball 12 are installed on the left vibration exciter 3, the right pendulum ball 13 and the right pendulum ball 14 are installed on the right vibration exciter 6, the left vibration exciter 3 is external, the left vibration exciter is connected with the left jaw plate 4 through the left support body 1 in the middle of the left main vibration spring 2, the right vibration exciter 6 is external, the right vibration exciter is connected with the right jaw plate 5 through the right support body 8 in the middle of the right main vibration spring 7, the two main vibration springs are respectively installed on two sides of the vibration isolator 10, and two sides of the vibration isolator 10 are connected with the base through the.

In fig. 3, a left vibration exciter 3 and a right vibration exciter 6 are a pair of symmetrical vibration exciters, a left pendulum ball 11 and a left pendulum ball 12 are mounted on the left vibration exciter 3, a right pendulum ball 13 and a right pendulum ball 14 are mounted on the right vibration exciter 6, the left vibration exciter 3 is built-in and mounted on a left pendulum mass 16, the left pendulum mass 16 is mounted on a left jaw plate 4 through a torsion spring 15, the left jaw plate 4 is connected with a left main vibration spring 2 through a left support body a1, the right vibration exciter 6 is built-in and mounted on a right pendulum mass 17, the right pendulum mass 17 is mounted on a right jaw plate 5 through a torsion spring, the right jaw plate 5 is connected with a right main vibration spring 7 through a right support body 8, the whole vibration exciting unit is mounted inside the crusher, the two main vibration springs are respectively mounted on two sides of a vibration isolator 10, and two sides of the vibration isolator 10.

In the middle of fig. 4, left vibration exciter 3 and right vibration exciter 6 are a pair of symmetrical vibration exciters, left pendulum ball 11 and left pendulum ball 12 are installed on left vibration exciter 3, right pendulum ball 13 and right pendulum ball 14 are installed on right vibration exciter 6, left vibration exciter 3 is external, install on left pendulum mass 16, left pendulum mass 16 is installed on left jaw 4 through torsion spring 15, left jaw 4 links together with left pendulum mass 16 through left supporter a1 in the middle of left main vibration spring 2, right vibration exciter 6 is external at the same time, install on right pendulum mass 17, right pendulum mass 17 is installed on right jaw 5 through torsion spring, right jaw 5 links together with right pendulum mass 7 through right supporter 8 in the middle of right main vibration spring 7, two main vibration springs are installed respectively in the both sides of vibration isolator 10, vibration isolator 10 both sides are connected with the frame through vibration damping spring 9.

During the use, add the broken chamber from the pan feeding mouth with the material that needs breakage earlier, then open vibrating device, the motion form that the broken chamber obtained is the relative motion of antiphase, and the material in the broken intracavity is under the vibration effect, constantly collides and extrudees between material and the material, between material and the movable jaw, reaches broken purpose. And discharging the crushed product through a discharge hole at the lower part. The material input is always kept in the whole process, and the machine is stopped for inspection after the whole working period is finished, so that the next production period is prepared.

The embodiments described above with reference to the drawings are exemplary only for the purpose of illustrating this patent and are not to be construed as limiting the patent. In the description of this patent, it is noted that the terms "mounted," "connected," and "connected," unless expressly specified or limited otherwise, are intended to be inclusive and mean, for example, that the terms "mounted," "connected," and "connected," may be fixedly connected, arranged, detachably connected, arranged, or integrally connected and arranged. These terms are merely for convenience in describing the patent and to simplify the description, and therefore should not be construed as limiting the patent. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A double-machine self-synchronous driving balanced type vibration crusher is characterized in that the vibration crusher is of a symmetrical structure along the axis of a crushing channel and comprises two groups of vibration exciters, two groups of main vibration springs, two supporting bodies, two jaw plates, two groups of vibration reduction springs and vibration isolators; the vibration exciters are composed of an alternating current motor and an eccentric rotor, the two vibration exciters are symmetrically arranged inside the crusher, each vibration exciter is connected with a corresponding pendulum bob, the pendulum bob is connected with corresponding jaw plates through torsion springs, the two jaw plates are open at the lower part and form a V-shaped cavity with a wide upper part and a narrow lower part to form a crushing channel, and the two jaw plates are respectively connected with a main vibration spring through supporting bodies; the main vibration spring is a rubber spring, the main vibration spring is connected with the vibration isolator through a supporting structure, and the vibration isolator is connected with the foundation through a vibration reduction spring; the vibration reduction springs are two groups and are connected with the vibration isolators and respectively installed at the corner positions of the base, when materials are crushed, the alternating current motor drives the eccentric rotor to reversely rotate at high speed to generate exciting force, the phase difference between the two vibration exciters is stabilized at 0 degree, so that the two pendulum bob bodies are driven to synchronously swing in a reverse position, the phase difference between the two pendulum bob bodies is also stabilized at 0 degree, and then the two jaw plates are driven to linearly move in a reverse phase in the horizontal direction to form certain extrusion force, thereby crushing the materials between the two movable jaws.

2. The dual-machine self-synchronizing driving balanced type vibration crusher according to claim 1, wherein the two vibration exciters are arranged symmetrically from inside to outside of the crusher, each vibration exciter is connected with a corresponding pendulum bob, the pendulum bob is connected with a corresponding support body through a torsion spring, the pendulum bob extends out of the crusher, and the inner end of the support body is connected with the jaw plate.

3. The dual-machine self-synchronizing driven balanced type vibration crusher as claimed in claim 1 or 2, wherein there are two sets of main vibration springs, each set is installed in the spring seat hole of the supporting body and fixed.