CN102240589B - A kind of energy-efficient crusher rotor - Google Patents

Abstract

A high-efficiency energy-saving crusher rotor, including a rotor body, a rotor upper cover, a guide plate, and an impact plate; the guide plates are multiple, uniformly arranged around the axis of the rotor body and fixed with the rotor body; the rotor The main body is provided with a material cavity, and the side of the material cavity is provided with a plurality of discharge ports, and each discharge port is respectively located between two adjacent guide plates; the upper cover of the rotor covers the top of the material cavity, and the upper cover of the rotor There is a feed inlet; the number of the impact plate is the same as that of the guide plate, and it is also uniformly arranged around the axis of the rotor body and fixed with the rotor body. The distance from the impact plate to the axis of the rotor body is greater than the distance from the guide plate to the axis of the rotor body. There is a one-to-one correspondence between the plate and each guide plate position. It makes the material hit the cutting board of the crushing cavity at high speed after secondary acceleration to break, so that the low-speed rotor can accelerate the material twice to obtain a higher speed to improve the crushing effect, reduce the energy consumption of the crusher, and increase the material crushing rate.

Description

A high-efficiency energy-saving crusher rotor

technical field

The invention relates to the technical field of crushers, in particular to a high-efficiency and energy-saving crusher rotor.

Background technique

The current vertical shaft impact crusher rotor is divided into two types: closed type and open type. Both types of rotors use the centrifugal force to accelerate the materials out of the rotor through the rotor under the action of the motor, which is a typical one-time acceleration. The speed range of the thrown materials is wide, and some materials are not accelerated to a higher crushing speed, resulting in low crushing rate and high production consumption.

Contents of the invention

In order to overcome the shortcomings of the above-mentioned prior art, the object of the present invention is to provide a high-efficiency energy-saving crusher rotor, which accelerates the material twice and then hits the anvil of the crushing cavity at high speed to break, thereby realizing the second acceleration of the material by the low-speed rotor A higher speed is obtained to improve the crushing effect, reduce the energy consumption of the crusher, and increase the crushing rate of the material.

In order to solve the above problems, the present invention adopts the following technical solutions: the rotor of the high-efficiency energy-saving crusher includes a rotor body, a rotor upper cover, a guide plate, and an impact plate; The rotor body is fixed as a whole; the rotor body is provided with a material chamber, and the side of the material chamber is provided with a plurality of discharge ports, and each discharge port is respectively located between two adjacent guide plates; the rotor upper cover covers the The top of the material cavity, and the upper cover of the rotor is provided with a feed inlet; the impact plate has the same number as the guide plate, and is also uniformly arranged around the axis of the rotor body and fixed with the rotor body. The distance from the impact plate to the axis of the rotor body is greater than The distance from the guide plate to the axis of the rotor body, each impact plate corresponds to the position of each guide plate; in the high-efficiency energy-saving crusher rotor, the inner side of the guide plate is an inner arc surface coaxial with the rotor body; each guide The inner arc surface of the plate and the tray enclose the material cavity of the rotor body; the guide plate is also provided with an outer arc surface coaxial with the rotor body, and the axis of the rotor body reaches the farthest end of the outer arc surface of the guide plate. The distance is equal to twice the distance from the axis of the rotor body to the farthest end of the inner arc surface of the guide plate; the guide plate is hollow.

As a further technical solution of the present invention:

In the high-efficiency energy-saving crusher rotor, the bottom surface of the material cavity of the rotor body is provided with a coaxial material distribution cone, and the bottom surface of the material distribution cone is arranged on the bottom surface of the material cavity.

In the high-efficiency energy-saving crusher rotor, the rotor upper cover and the rotor body are connected by bolts, and the diameter of the rotor upper cover is smaller than the diameter of the rotor body.

In the rotor of the high-efficiency energy-saving crusher, the bottom surface of the material chamber of the rotor body is a tray, and the guide plate is fixed on the tray.

In the high-efficiency energy-saving crusher rotor, the radius of the tray is equivalent to the distance from the axis of the rotor body to the farthest end of the guide plate; the impact plate is fixed with the rotor body through a cantilevered connection with the guide plate.

In the high-efficiency energy-saving crusher rotor, the radius of the tray is greater than the distance from the axis of the rotor body to the farthest end of the guide plate; the bottom end of the impact plate is directly fixed on the outer edge of the tray, and the tray There are several sieve holes.

In the high-efficiency and energy-saving crusher rotor, the side of the impact plate lags behind the side of the same side of the corresponding guide plate in the direction of rotation of the rotor body.

In the high-efficiency and energy-saving crusher rotor, the above-mentioned guide plates and impact plates are self-symmetrical structures.

In the high-efficiency energy-saving crusher rotor, the impact plate includes a body and two wear-resistant impact blocks fixed on both sides of the body by bolts.

The beneficial effect of the present invention is that: the guide plate of the rotor of this kind of crusher accelerates the material for the first time by centrifugal action, relative to the rotation of the rotor, a material flow along a deterministic trajectory is generated, and the impact plate and the rotor rotate at the same axis and at the same speed. The material flow collides with the impact plate, and the mass and speed of the impact plate are far greater than the mass and speed of the material. After the impact, the material flow is accelerated twice. The acceleration speed is greater than the speed of the material accelerated by the rotor under the same diameter. The accelerated material collides with the waterfall stone or cutting board and breaks. In this way, the low-speed rotor can accelerate the material twice to obtain a higher speed to improve the crushing effect, reduce the energy consumption of the crusher, and increase the crushing rate of the material.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

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

Figure 2 is a top view of Embodiment 1 of the present invention,

Fig. 3 is A-A sectional view of Fig. 2,

Fig. 4 is a schematic structural diagram of Embodiment 2 of the present invention,

Figure 5 is a top view of Embodiment 2 of the present invention,

Fig. 6 is a B-B sectional view of Fig. 5,

In the figure: 1 rotor body, 11 tray, 12 discharge port, 13 distribution cone, 2 rotor cover, 21 feed port, 3 guide plate, 4 impact plate, 41 body, 42 wear-resistant impact block, 5 cantilever, 6 sieve holes.

Detailed ways

Embodiment 1: As shown in Figures 1, 2, and 3, the crusher rotor mainly includes a rotor body 1, a rotor upper cover 2, a guide plate 3, and an impact plate 4.

The rotor body 1 is provided with a material cavity, the bottom surface of the rotor body material cavity is a tray 11, and the guide plate 3 is fixed on the tray 11. There are four guide plates 3, which are evenly arranged around the axis of the rotor body. The radius of the tray 11 is equal to The distance from the axis of the rotor body to the farthest end of the guide plate 3 is equivalent. The inner side of the guide plate 3 is an inner arc surface coaxial with the rotor body; the inner arc surface of each guide plate 3 and the tray 11 enclose the material cavity of the rotor body. The guide plate 3 is also provided with an outer arc surface coaxial with the rotor body. The distance from the axis of the rotor body to the farthest end of the outer arc surface of the guide plate 3 is equal to twice the distance from the axis of the rotor body to the farthest end of the inner arc surface of the guide plate 3, that is, the length of the guide plate is 1/2 of the rotor radius. The design of the inner arc surface of the guide plate 3 basically coincides with the movement trajectory of the material in the rotor, so that the material can be smoothly guided into the guide plate, and the guide plate with a length of 1/2 the radius of the rotor will not damage the movement trajectory of the material and cause energy consumption. The guide plate 3 is hollow, and the guide plate only guides and accelerates the material, and is lightly impacted and worn by the material. The hollow guide plate greatly reduces the overall mass of the rotor, reduces production costs and energy consumption. Four outlets 12 are provided on the side of the material cavity, and each outlet 12 is respectively located between two adjacent guide plates 3 .

The bottom surface of the material cavity of the rotor body is provided with a coaxial material distribution cone 13 , and the bottom surface of the material distribution cone 13 is arranged on the bottom surface of the material cavity, that is, on the tray 11 . The material distribution cone 13 can quickly and evenly guide the material to the four outlets 12, and the conical design of the material distribution cone 13 will not affect the spiral acceleration behavior of the material in the material cavity.

The rotor upper cover 2 covers the top of the material cavity, and the rotor upper cover 2 is provided with a material inlet 21 . The rotor upper cover 2 is bolted to the rotor body, and the diameter of the rotor upper cover 2 is smaller than that of the rotor body 1 . The material inlet 21 of the rotor upper cover 2 can introduce all the materials in the feed pipe into the material cavity of the rotor body, and the overall slightly smaller design of the rotor upper cover 2 can reduce the overall power consumption and production cost of the vertical shaft impact crusher.

The impact plate 4 has the same number as the guide plate 3, and is also uniformly arranged around the axis of the rotor body. Each impact plate 4 corresponds to each guide plate 3 one by one. The distance between the impact plate 4 and the axis of the rotor body is greater than that of the guide plate 3 to the axis of the rotor body. distance. The impact plate 4 is connected with the guide plate 3 by the cantilever 5 to be fixed together with the rotor body, which can be cast and manufactured at one time, which shortens the production cycle of the rotor, greatly reduces the quality of the entire rotor, and reduces the production cost and energy consumption. The side of the impact plate 4 lags behind the side of the same side of the corresponding guide plate 3 in the direction of rotation of the rotor body, that is, the impact plate 4 lags behind the guide plate 3 at a certain angle, and rotates coaxially and at the same speed. The impact plate 4 will initially contact the guided plate 3. After acceleration, the materials that move according to the deterministic trajectory collide head-on. Since the mass and speed of the impact plate 4 are far greater than the mass and speed of the materials, the materials are accelerated twice after the collision, so as to achieve the goal of generating materials with high impact speeds at low rotational speeds of the rotors. .

The four outlets 12 of the rotor of the crusher are completely symmetrical and can quickly throw out the material to form a logistics moving according to a certain trajectory and collide with the corresponding impact plate to achieve secondary acceleration.

Both the guide plate 3 and the impact plate 4 are self-symmetrical structures. In this way, the rotor can rotate in the forward and reverse directions, which can reduce the number of disassembly and assembly of the impact plate 4 after being worn out, improve the utilization rate and reduce the utilization cost.

In addition, the impact plate 4 includes a body 41 and two wear-resistant impact blocks 42 fixed on both sides of the body 41 by bolts. The main body 41 and the tray 11 can be connected by welding or casting, and the wear-resistant impact block 42 and the main body 41 are connected by bolts. Once the accelerated material collides with the rotating impact plate 4, the second acceleration will cause wear of the wear-resistant impact block 42 , This detachable impact plate structure can prolong the working time of the crusher, reduce the production cost of the rotor, and improve production efficiency.

Embodiment 2: As shown in Figures 4, 5, and 6, the difference between this embodiment and Embodiment 1 is that the radius of the tray 11 is greater than the distance from the axis of the rotor body to the farthest end of the guide plate 3; the impact plate 4 The bottom end is directly fixed on the outer edge of the tray 11, and the tray 11 is provided with a plurality of screen holes 6. The tray 11 and the impact plate 4 can be welded or cast at one time, and the sieve holes 6 on the tray can be drilled later, and the size of the sieve holes 6 is 10 mm. During the operation of the tray 11, the materials to be processed that are less than or equal to 10mm can fall through the screen hole 6 without hitting the impact plate 4 under the action of gravity, so as to avoid unnecessary energy consumption caused by secondary acceleration, and the tray 11 can be used as much as possible. There may be a lot of materials hitting the impact plate 4 according to the determined trajectory, and after the second acceleration, it will impact the waterfall stone or the cutting board, which is beneficial to improve the crushing efficiency.

All the other technologies are the same as in Embodiment 1.

Claims (8)

1. A high-efficiency energy-saving crusher rotor is characterized in that: it includes a rotor body, a rotor upper cover, a guide plate, and an impact plate; the guide plates are multiple, evenly arranged around the axis of the rotor body and fixed with the rotor body as One body; the rotor body is provided with a material cavity, and the side of the material cavity is provided with a plurality of discharge ports, and each discharge port is respectively located between two adjacent guide plates; the upper cover of the rotor covers the material cavity The top, and the upper cover of the rotor is provided with a feed port; the impact plate has the same number as the guide plate, and is also uniformly arranged around the axis of the rotor body and fixed with the rotor body. The distance from the impact plate to the axis of the rotor body is greater than that from the guide plate to the rotor body The distance of the axis, each impact plate corresponds to the position of each guide plate; the bottom surface of the material cavity of the rotor body is a tray, and the guide plate is fixed on the tray; the inner side of the guide plate is coaxial with the rotor body The inner arc surface of the guide plate; the inner arc surface of each guide plate and the tray enclose the material cavity of the rotor body; the guide plate is also provided with an outer arc surface coaxial with the rotor body, the axis of the rotor body reaches the guide The distance from the farthest end of the outer arc surface of the plate is equal to twice the distance from the axis of the rotor body to the farthest end of the inner arc surface of the guide plate; the guide plate is hollow. 2. A high-efficiency energy-saving crusher rotor according to claim 1, characterized in that: the bottom surface of the material cavity of the rotor body is provided with a coaxial material distribution cone, and the bottom surface of the material distribution cone is arranged on the material cavity bottom surface. 3. A high-efficiency and energy-saving crusher rotor according to claim 1, characterized in that: the rotor upper cover and the rotor body are connected by bolts, and the diameter of the rotor upper cover is smaller than the diameter of the rotor body. 4. A high-efficiency and energy-saving crusher rotor according to claim 1, characterized in that: the radius of the tray is equivalent to the distance from the axis of the rotor body to the farthest end of the guide plate; the impact plate is connected to the guide plate through a cantilever Realize being fixed together with the rotor body. 5. A high-efficiency energy-saving crusher rotor according to claim 1, characterized in that: the radius of the tray is greater than the distance from the axis of the rotor body to the farthest end of the guide plate; the bottom end of the impact plate is directly fixed on the On the outer edge of the tray, a number of screen holes are arranged on the tray. 6. The high-efficiency and energy-saving crusher rotor according to claim 1, characterized in that: the side of the impact plate lags behind the side of the same side of the corresponding guide plate in the rotation direction of the rotor body. 7. A high-efficiency and energy-saving crusher rotor according to claim 1 or 6, characterized in that: said guide plates and impact plates are self-symmetrical structures. 8. A high-efficiency and energy-saving crusher rotor according to claim 7, wherein the impact plate comprises a main body and two wear-resistant impact blocks fixed on both sides of the main body by bolts.