Impeller assembly for impact crusher

Abstract

The utility model discloses an impeller assembly for an impact crusher, which is positioned in an impact cavity and comprises an impeller body and a flexible cleaning structure which is arranged on the impeller body and synchronously rotates along with the impeller body, and a crushing discharge port is formed between the impeller body and a bottom plate of the impact cavity. And the flexible cleaning structure is positioned above the crushing discharge port to clean the crushing discharge port so as to prevent the crushing discharge port from being blocked by crushed materials. The flexible cleaning structure is arranged on the impeller body and rotates along with the impeller body attached to the discharging port, materials are prevented from being stacked at the discharging port, the flexible rope chain rotates along with the impeller, bonding materials on the path are continuously whipped, the material nesting area is reduced, and the effective use size of the impact cavity is increased; and the impact friction effect between the materials is improved, and the shaping and crushing effect of the materials is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of impact crushers field, especially a kind of impeller assembly for impact crusher. BACKGROUND

[0002] Impact crusher realizes the efficient crushing of material by high-speed impact force, with high crushing efficiency, good particle shape, strong adjustability and other characteristics, widely used in various industrial fields, the core principle of impact crusher is to use high-speed rotating impeller or fixed counterattack plate, so that material is broken under the action of impact force. Generally, material enters the impact chamber of the crusher through the feed inlet; The material is thrown out by the impeller at high speed and collides with the baffle or lining plate on the inner wall of the impact chamber; The material is broken into smaller particles during the collision process; The broken material can be thrown out by the impeller again to continue to collide and break, forming a "stone hitting stone" or "stone hitting iron" breaking mode; Part of the material rubs and grinds each other in the impact chamber, further reducing the particle size; The broken material is discharged from the discharge port of the crusher; The discharge port is usually located at the bottom of the impeller.

[0003] During daily operation, if the particle size of the material entering the crusher exceeds the maximum value specified by the equipment, it may cause the impeller channel and the discharge port to be blocked; In addition, too much or too fast feeding will increase the load of the crusher, causing the discharge port to be blocked; Or, if the moisture content of the material is too high or the viscosity is too large, it is easy to accumulate at the discharge port, causing blockage. Therefore, when using the impact crusher, the material needs to be strictly controlled, but even so, there may still be blockage at the discharge port. Once the discharge port is blocked, the machine will be stopped immediately and the blockage will be cleaned.

[0004] During operation, the accumulation and blockage of the discharge port greatly affect the progress of the operation. Once blocked, the machine needs to be stopped for cleaning, and the removed blockage will contaminate the finished product, which requires a large cost for cleaning and transportation. Therefore, a new impeller structure is designed to reduce the blockage of the discharge port. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide an impeller assembly for impact crusher with reduced blockage of discharge port.

[0006] Technical solution: The impeller assembly for impact crusher of the utility model is located in the impact chamber, and comprises an impeller body and a flexible cleaning structure provided on the impeller body and rotating synchronously therewith. The impeller body and the bottom plate of the impact chamber form a broken discharge port, and the flexible cleaning structure is located above the broken discharge port to clean the broken discharge port and prevent the broken material from blocking.

[0007] Further, the flexible cleaning structure comprises a mounting plate and a rope chain fixedly connected to the mounting plate.

[0008] Further, the mounting plate of the flexible cleaning structure is an upper clamp plate and a lower clamp plate, which are fixedly connected by bolts, and the rope chain end is fixed between the upper clamp plate and the lower clamp plate.

[0009] Further, the flexible cleaning structure is arranged on the lower cover of the impeller body.

[0010] Further, the flexible cleaning structure is arranged on the flow channel plate of the impeller body, and the flexible cleaning structure is mounted on the side wall of the flow channel plate facing the impact chamber.

[0011] Further, the side wall of the flow channel plate of the impeller body facing the impact chamber is further provided with an impact block for preventing the mounting plate from being damaged. The impact block is arranged in front of the mounting plate during rotation, which not only prevents the impact of the material on the mounting plate, but also improves the material crushing efficiency.

[0012] Advantages: Compared with the prior art, the impeller assembly of the utility model has the advantages that: by arranging the flexible cleaning structure on the impeller body, the material is prevented from accumulating on the discharge port when the impeller body is rotated and attached to the discharge port, the flexible rope chain continuously hits the cohesive material on the path when following the rotation of the impeller, the material accumulation area is reduced, the effective use volume of the impact chamber is increased, the impact and friction effect between the materials is increased, and the overall crushing effect of the materials is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 Fig. 1 is a structural schematic view of the impeller assembly of the utility model;

[0014] Figure 2 Fig. 2 is a structural schematic view of the impeller body of the utility model without the upper cover;

[0015] Figure 3 Fig. 3 is a structural schematic view of the flexible cleaning structure of the utility model. DETAILED DESCRIPTION

[0016] The technical scheme of the utility model will be further described below with reference to the drawings.

[0017] It should be noted that the impeller assembly of the impact crusher of the utility model is based on the existing impact crusher (for example, the impact crusher of model V-3000) and is provided with a flexible cleaning structure to prevent the material from accumulating on the discharge port, and the flexible cleaning structure continuously hits the cohesive material on the path when following the rotation of the impeller, thereby reducing the material accumulation area, increasing the effective use volume of the impact chamber, increasing the impact and friction effect between the materials, and improving the overall crushing effect of the materials.

[0018] As Figure 1 and Figure 2As shown, the impeller assembly of the utility model is located in the impact chamber 1 of the impact crusher, the impeller assembly comprises an impeller body (i.e. an impeller) and a flexible cleaning structure 4 arranged on the impeller body and rotating synchronously with the impeller body. For the impeller structure itself, no structural adjustment is made, and it is the impeller structure of the impact crusher known in the art, for example, comprising an upper cover 5, an impeller body 2 and a lower cover 6 from top to bottom, the lower cover 6 is provided with a discharge port 3 through which materials pass between the lower cover 6 and the wear plate at the bottom of the impact chamber 1, and four guide plates 7 are symmetrically installed on the lower cover 6.

[0019] As Figure 3 shown, the flexible cleaning structure 4 comprises a mounting plate 8 and a rope chain 9 fixedly installed in the mounting plate 8, the rope chain 9 is a flexible structure, and the number of the rope chain 9 can be set according to requirements. In the embodiment, two rope chains 9 are provided, the mounting plate 8 is composed of upper and lower clamping plates, and the rope chain 9 is located between the upper and lower clamping plates. When the upper and lower clamping plates are closed by bolts, one end of the rope chain 9 is fixed between the upper and lower clamping plates, and the other end of the rope chain 9 is a free end which sweeps above the discharge port 3 along with the rotation of the impeller.

[0020] The flexible cleaning structure 4 is installed on the guide plate 7. Preferably, the mounting plate 8 of the flexible cleaning structure 4 can be fixedly installed on the side of the guide plate 7 facing the impact chamber 1 by bolts, and an impact block 10 is fixedly installed on the guide plate 7 in the advancing direction of the rotation of the impeller body 2, the mounting plate 8 is located behind the impact block 10 to prevent damage to the mounting plate 8 by the materials.

[0021] Working mechanism: when the materials enter the crusher bin, due to the rotation of the impeller body, the materials are divided into the channels formed by the guide plates 7 through the upper cover 5, and the materials are accelerated and then projected along the channels. After being thrown out by the impeller body, the materials hit each other in the impact chamber 1 or hit the impact chamber 1 inner wall guard plate, and are crushed to form crushed materials which flow out of the discharge port 3. In this process, the rope chain 9 of the flexible cleaning structure 4 rotates synchronously and constantly hits the materials falling on the discharge port 3 to prevent the materials from being accumulated and blocked, and the materials flying in the impact chamber 1 are constantly drawn by the rope chain 9 to improve the crushing efficiency; and the position of the mounting plate 8 is set so that the movement track of the rope chain 9 is parallel to the material flow accelerated and thrown out by the impeller body, thereby prolonging the replacement and maintenance period.

Claims

1. A impeller assembly for an impact crusher, the impeller assembly being located within an impact chamber (1), characterised in that, The impeller assembly comprises an impeller body and a flexible cleaning structure (4) arranged on the impeller body and rotating synchronously with the impeller body, a broken discharge port (3) is formed between the impeller body and the bottom plate of the impact chamber (1), and the flexible cleaning structure (4) is arranged above the broken discharge port (3) to clean the broken discharge port (3) so as to avoid the blockage of the broken materials.

2. The impeller assembly for an impact crusher of claim 1, wherein, The flexible cleaning structure (4) comprises a mounting plate (8) and a rope chain (9) fixedly connected with the mounting plate (8).

3. The impeller assembly for an impact crusher of claim 2, wherein, The mounting plate (8) is an upper clamping plate and a lower clamping plate, the upper clamping plate and the lower clamping plate are fixedly connected through bolts, and the end of the rope chain (9) is fixed between the upper clamping plate and the lower clamping plate.

4. The impeller assembly for an impact crusher according to claim 1 or 2, characterized in that, The flexible cleaning structure (4) is arranged on the lower cover (6) of the impeller body.

5. The impeller assembly for an impact crusher according to claim 1 or 2, characterized in that, The flexible cleaning structure (4) is arranged on the flow channel plate (7) of the impeller body, and the flexible cleaning structure (4) is arranged on the side wall of the flow channel plate (7) facing the impact chamber (1).

6. The impeller assembly for an impact crusher of claim 5, wherein, The side wall of the flow channel plate (7) of the impeller body facing the impact chamber (1) is further provided with an impact block (10) for preventing the mounting plate (8) from being damaged.

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