WO2022073270A1

WO2022073270A1 - High-efficiency impact crusher

Info

Publication number: WO2022073270A1
Application number: PCT/CN2020/125325
Authority: WO
Inventors: 朱兴良
Original assignee: 毛雪梅
Priority date: 2020-10-10
Filing date: 2020-10-30
Publication date: 2022-04-14

Abstract

A high-efficiency impact crusher, comprising a rack assembly and a rotor assembly located at the inner side of the rack assembly. The rotor assembly comprises a rotor (1) and a flat hammer (2) fixed at the outer side of the rotor (1); the rack assembly comprises a rack (3), a feed port (4) formed on the right side of the upper end of the rack (3), and a discharge port (5) formed on the center of the lower end of the rack (3); a crushing cavity (6) is formed between the rack assembly and the rack (3); impact plates (7) mounted on the rack (3) are provided in the crushing cavity (6); an extended guide plate (21) fixedly connected to the rack (3) is provided on the lower end surface of the feed port (4); a working plane on the left end of the extended guide plate (21) is fixedly connected to a plurality of screening strips (24) that are arranged at intervals from front to back; and the left ends of the screening strips (24) are fixedly connected to the inner wall on the right side of the lower end of the crushing cavity (6). The structure of the apparatus is reasonably designed, and when the apparatus is used, some small particle materials can be screened out first, such that the crushing cavity (6) can accommodate more large materials to be crushed, thereby increasing the crushing efficiency of the materials.

Description

A high-efficiency impact crusher

technical field

The invention relates to the technical field of crushers, in particular to a high-efficiency impact crusher.

Background technique

The impact crusher uses the high-speed rotating rotor to produce high-speed impact on the material thrown into the crushing cavity, and throws the material onto the impact plate, where the material falls down by gravity and rebound force, but the high-speed rotating rotor drives the plate hammer in the tangential direction It hits the material again, throws the material to another counterattack plate, the material is further broken, and then bounces from the counterattack plate to the blow hammer, repeating the above process. Collision between each other, the material continues to produce cracks, until loose and crushed. When the particle size of the material is smaller than the discharge gap between the impact plate and the blow hammer, it will be discharged from the crushing chamber. However, when the existing impact crusher crushes materials, a large amount of materials that are smaller than the discharge gap between the impact plate and the blow hammer are usually mixed with the materials, and these materials will occupy a part of the crushing cavity after entering the crushing cavity. until the blow hammer hits these materials to the left end of the accommodating cavity, these materials can fall out from the discharge port under the action of gravity, these smaller materials will not only occupy the volume of the accommodating cavity but also greatly Affect the crushing speed of other materials.

SUMMARY OF THE INVENTION

The present invention aims to solve the problems existing in the above-mentioned prior art, and provides a high-efficiency impact crusher. The device has a reasonable structure and is designed to screen out smaller materials from the crushing cavity through a screening device during feeding, so that the The crushing cavity can accommodate more materials to be crushed, thereby improving crushing efficiency.

The technical solution adopted by the present invention to solve its technical problems: this high-efficiency impact crusher includes a frame assembly and a rotor assembly located inside the frame assembly, and the rotor assembly includes a rotor and a blow hammer fixed on the outside of the rotor, The frame assembly includes a frame, a feeding port opened on the right side of the upper end of the frame, and a discharge port opened at the center of the lower end of the frame. A crushing cavity is formed between the rotor assembly and the frame, and the crushing The inner side of the cavity is provided with a counterattack plate installed on the frame, the lower end surface of the feeding port is provided with an elongated material guide plate fixedly connected to the frame, and the left end working plane of the elongated material guide plate is fixedly connected with a Several screen bars are arranged at intervals from front to back. The left end of the screen bars is fixedly connected to the inner wall of the lower end of the crushing cavity. The small particle material in the material can fall between the screen bars, and directly slide into the discharge port through the gap between the screen bars, so as to avoid the need to crush the small particle material again, so that the crushing cavity can accommodate more needs. crushed materials, thereby improving the working efficiency of the crusher.

For further improvement, only one blow bar is provided, the blow bar is located on the lower side of the right end of the rotor, and a counterweight is arranged on the outer side of the rotor, and the counterweight and the blower are arranged symmetrically with respect to the center of the rotor.

Further improvement, the left end of the blow hammer is provided with a clamping groove on the rotor, the left end of the blow hammer is fixedly connected to the inner side of the clamping groove, and the blow hammer is fixed on the inner side of the clamping groove, so that the blow hammer is in operation. More firm, not easy to fall off the rotor.

Further improvement, the screening device includes a first screen bar fixedly connected to the inside of the filter hole, the upper end of the first screen bar is fixedly connected with a second screen bar vertically arranged with the first screen bar, and the second screen bar is fixedly connected to the upper end of the first screen bar. The installation direction of the screen bar is the same as the rotation direction of the rotor. There are first screen bars and second screen bars that are perpendicular to each other, so that some small particles can easily fall out of the screening device. The installation direction of the second screen bar at the upper end is the same as that of the rotor. The direction of rotation and the falling direction of the material are the same, which makes it easier for the small particle material to enter the gap between the first screen bar and the second screen bar, which speeds up the screening speed.

Further improvement, the rotor assembly also includes a rotating shaft fixedly connected to the inner side of the rotor, the rotor is rotatably connected in the crushing cavity, and the front and rear ends of the rotating shaft pass through the frame respectively and are rotatably connected to a support seat, and the lower end of the support seat is rotatably connected. A connecting plate welded on the outside of the frame is fixedly connected, a flywheel is fixedly connected to the outside of the rotating shaft at the rear end, and a protective sleeve is fixedly connected to the connecting plate by screws on the outside of the rotating shaft at the front end.

Further improvement, the upper sides of the front and rear ends of the frame are provided with access doors connected to the frame through hinges, the lower ends of the access doors are located above the horizontal centerline of the rotor, and there are access doors to facilitate the inspection and maintenance of the device.

Further improvement, the front and rear ends of the elongated material guide plate are fixedly connected with sealing plates, and the sealing plates are provided to prevent the material from leaking out from the front and rear ends of the elongated material guide plate.

Further improvement, the integrated design of the counterweight and the rotor prevents the counterweight from falling off or loosening after being hit, making the connection between the rotor and the counterweight more stable and increasing the service life of the device.

Further improvement, one end of the backrest is fixedly connected to the outer side of the rotor, and the other end of the backrest is fixedly connected to one side of the blow hammer, and the other side of the blow hammer is the impact surface for impacting the material. The direction of the rotor is consistent with the rotation direction of the rotor when it is working, and it is provided with a backrest, so that the impact force can be transmitted to the backrest after being stressed, so as to avoid bending or breaking of the blower after long-term use, thus affecting the crushing effect.

The beneficial effects of the present invention are: the present invention has a reasonable structure design, and is provided with sieve bars installed on the elongated material guide plate, so that the small particle materials in the materials entering the crushing cavity from the feeding port can fall between the sieve bars, It slides directly into the discharge port through the gap between the screen bars to avoid the need to crush the small particle materials again, so that the crushing cavity can accommodate more materials to be crushed, thereby improving the working efficiency of the crusher.

Description of drawings

Fig. 1 is the structural representation of the present invention;

Fig. 2 is the top view of the present invention;

3 is a cross-sectional view of the present invention;

Figure 4 is a schematic diagram of the installation of the rotor, the rotating shaft and the plate hammer.

Description of reference numerals: 1, rotor, 2, blow bar, 3, frame, 4, feeding port, 5, discharging port, 6, crushing cavity, 7, counterattack plate, 11, counterweight, 12, snap connection Slot, 15, Rotating shaft, 16, Support seat, 17, Connecting plate, 18, Flywheel, 19, Protective cover, 20, Access door, 21, Extended guide plate, 22, Sealing plate, 23, Backrest, 24, Screen bar .

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings:

As shown in Figures 1-3, a high-efficiency impact crusher in this embodiment includes a frame assembly and a rotor assembly located inside the frame assembly. The rotor assembly includes a rotor 1 and a rotor fixed on the outside of the rotor 1. Blow hammer 2, the frame assembly includes a frame 3, a feeding port 4 opened on the right side of the upper end of the frame 3 and a discharge port 5 opened at the center of the lower end of the frame 3, the rotor 1 assembly and the machine A crushing cavity 6 is formed between the racks 3, the inside of the crushing cavity 6 is provided with a counterattack plate 7 installed on the rack 3, and the lower end surface of the feeding port 4 is provided with an extension fixedly connected to the rack 3. Material guide plate 21, a plurality of screen bars 24 spaced from front to back are fixedly connected to the working plane at the left end of the elongated material guide plate 21, and the left end of the screen bars 24 is fixedly connected to the inner wall on the right side of the lower end of the crushing cavity 6 There are screen bars installed on the elongated material guide plate 21, so that the small particles in the material entering the crushing cavity 6 from the feeding port 4 can fall between the screen bars 24 and pass through the screen bars 24. The gap slides directly into the discharge port to avoid the need to crush the small particle materials again, so that the crushing cavity 6 can accommodate more materials to be crushed, thereby improving the working efficiency of the crusher.

As shown in FIG. 4 , there is only one blow hammer 2 , the blow hammer 2 is located on the lower side of the right end of the rotor 1 , and a counterweight 11 is provided outside the rotor 1 . The counterweight 11 and the blow hammer 2 are related to the rotor. 1 is arranged symmetrically in the center. In order to ensure the rotational balance of the rotor 1, a counterweight can be set on the rotor 1, and a counterweight can also be set on the flywheel 18 outside the rotating shaft 15.

As shown in FIG. 4 , the outer side of the left end of the blow hammer 2 is provided with a clamping groove 12 opened on the rotor 1 , and the left end of the blow hammer 2 is fixedly connected to the inner side of the clamping groove 12 to fix the blow hammer 2 on the rotor. The inner side of the clamping groove 12 makes the blow hammer 2 more reliable when in use, and it is not easy to fall off the rotor 1 after being stressed.

As shown in Figures 1 and 2, the rotor 1 assembly further includes a rotating shaft 15 fixedly connected to the inner side of the rotor 1, the rotor 1 is rotatably connected in the crushing chamber 6, and the front and rear ends of the rotating shaft 15 respectively pass through the frame 3. A support base 16 is rotatably connected, the lower end of the support base 16 is fixedly connected with a connecting plate 17 welded on the outside of the frame 3, a flywheel 18 is fixedly connected to the outside of the rotating shaft 15 at the rear end, and the outside of the rotating shaft 15 at the front end is provided with a pass through. The protective cover 19 connected to the connecting plate 17 is fixed with screws.

As shown in FIG. 1 , the upper sides of the front and rear ends of the frame 3 are provided with access doors 20 connected to the frame 3 through hinges, and the lower ends of the access doors 20 are located above the horizontal centerline of the rotor 1 .

As shown in FIGS. 1 and 2 , the front and rear ends of the elongated material guide plate 21 are fixedly connected with sealing plates 22 .

As shown in FIGS. 3 and 4 , the counterweight block 11 and the rotor 1 are integrally designed, so that the connection between the rotor 1 and the counterweight block 11 is more stable and the service life of the device is increased.

As shown in Figures 3 and 4, one end of the backrest 23 is fixedly connected to the outside of the rotor 1, and the other end of the backrest 23 is fixedly connected to one side of the blow hammer 2, and the other side of the blow hammer 2 is used for impact The impact surface of the material, the direction of the impact surface is the same as the rotation direction of the rotor 1 when it is working, and the backrest 23 is provided, so that the blow hammer can transmit the impact force to the backrest 23 after being stressed, so as to avoid the long use of the blow hammer 2. Bending or breaking occurs, thus affecting the crushing effect.

When the present invention is in use, the rotor in the accommodating cavity 6 rotates at a high speed, and the material slides off the elongated material guide plate 21. During the sliding process, the small particle material enters the inner side of the gap between the front and rear screen bars 24 under the action of gravity , slides along the screen bar 24 to the discharge port 5, and the large-particle material enters the accommodation cavity from the feeding port 4 and then collides with the blow hammer 2 for the first crushing. The broken material acts on the blow hammer 2 The material bounces down to the inner wall of the accommodating cavity 6 for the second crushing, and the material after the second crushing bounces back to the action surface of the blow hammer 2 after one rotation under the action of the counterattack plate 7 for the third crushing. After many times of crushing, the material falls out from the discharge port 5 at the bottom.

Although the present invention has been illustrated and described with reference to preferred embodiments, it will be understood by those of ordinary skill in the art that various changes in form and detail may be made within the scope of the claims.

Claims

A high-efficiency impact crusher, comprising a frame assembly and a rotor assembly located inside the frame assembly, the rotor assembly comprising a rotor (1) and a plate hammer (2) fixed on the outside of the rotor (1), the The frame assembly includes a frame (3), a feeding port (4) opened on the right side of the upper end of the frame (3), and a discharge port (5) opened at the center of the lower end of the frame (3), the rotor ( 1) A crushing cavity (6) is formed between the assembly and the frame (3), and the inner side of the crushing cavity (6) is provided with a counterattack plate (7) installed on the frame (3), characterized in that: the The lower end surface of the feeding port (4) is provided with an elongated material guide plate (21) fixedly connected to the frame (3), and a plurality of feeder guide plates (21) are fixedly connected to the working plane at the left end of the elongated material guide plate (21). Go to the screen bars (24) arranged at intervals at the rear, and the left end of the screen bars (24) is fixedly connected to the inner wall on the right side of the lower end of the crushing cavity (6).
A high-efficiency impact crusher according to claim 1, characterized in that: there is only one plate hammer (2), the plate hammer (2) is located on the lower side of the right end of the rotor (1), and the rotor (1) A counterweight (11) is provided on the outer side, and the counterweight (11) and the plate hammer (2) are centrally symmetrically arranged with respect to the rotor (1).
A high-efficiency impact crusher according to claim 1, characterized in that: a clamping groove (12) opened on the rotor (1) is provided on the outer side of the left end of the plate hammer (2), and the plate hammer (2) is The left end of the hammer (2) is fixedly connected to the inner side of the clamping groove (12).
The high-efficiency impact crusher according to claim 1, wherein the rotor (1) assembly further comprises a rotating shaft (15) fixedly connected to the inner side of the rotor (1), and the rotor (1) rotates Connected in the crushing cavity (6), the front and rear ends of the rotating shaft (15) pass through the frame (3) and are respectively connected to a support seat (16) for rotation, and the lower end of the support seat (16) is fixedly connected with a welded joint. A connecting plate (17) on the outside of the frame (3), a flywheel (18) is fixedly connected to the outside of the rotating shaft (15) at the rear end, and a connecting plate (17) is fixedly connected to the connecting plate (17) by screws on the outside of the rotating shaft (15) at the front end. protective cover (19).
The high-efficiency impact crusher according to claim 1, characterized in that: the upper sides of the front and rear ends of the frame (3) are provided with access doors (20) connected to the frame (3) through hinges, so The lower end of the inspection door (20) is located above the horizontal centerline of the rotor (1).
The high-efficiency impact crusher according to claim 1, wherein the front and rear ends of the elongated material guide plate (21) are fixedly connected with sealing plates (22).
A high-efficiency impact crusher according to claim 2, characterized in that: the counterweight (11) and the rotor (1) are of an integrated design.
A high-efficiency impact crusher according to claim 2 or 3, characterized in that: one end of a backrest (23) is fixedly connected to the outside of the rotor (1), and the other end of the backrest (23) is connected to the One side surface of the blow hammer (2) is fixedly connected, and the other side surface of the blow hammer (2) is an impact surface for impacting the material, and the direction of the impact surface is consistent with the rotation direction of the rotor (1) during operation.