Impact crusher structural features

The HX vertical impact crusher consists of seven parts: the feed hopper, the distributor, the vortex crushing chamber, the impeller body, the spindle assembly, the base, the transmission and the motor.

Feed hopper

The structure of the feeding hopper is an inverted prismatic body (or a cylindrical body), and the feeding port is provided with a wear ring, and the incoming material from the feeding device enters the crusher through the feeding hopper.

2. Distributor

The distributor is installed in the upper part of the vortex crushing chamber, and the function of the distributor is to divert the material from the feeding hopper, so that a part of the material is directly accelerated into the impeller through the central feeding tube and is gradually accelerated to a higher speed to be ejected, so that another A part of the material is bypassed from the outside of the center inlet pipe, bypassed into the outer side of the impeller in the vortex crushing chamber, and is impacted and broken by the high-speed material ejected from the impeller, without increasing power consumption, increasing production capacity, and improving crushing efficiency.

3. Eddy breaking chamber

The structural shape of the vortex breaking chamber is an annular space composed of upper and lower cylinders. The impeller rotates at high speed in the vortex breaking chamber, and the material can also reside in the vortex breaking chamber to form a material lining. Occurred in the vortex crushing chamber, the material lining separates the wall of the crushing action vortex crushing chamber, so that the crushing effect is limited to between the materials, and plays the role of wear-resistant self-lining. The observation hole is to observe the wear condition of the wear block at the launching port of the impeller flow channel and the wear condition of the lining plate at the top of the vortex breaking cavity. The working hole must be sealed tightly when the crusher is working. The distributor is fixed to the upper cylindrical section of the vortex breaking chamber. The impeller rotates at a high speed to generate an air flow, and an internal self-circulation system is formed in the vortex crushing chamber through a distributor and an impeller.

4. Impeller

The impeller structure is made of a special material and is mounted on the upper end of the main shaft assembly. The conical sleeve and the key joint are used to transmit the button pitch and rotate at high speed. The impeller is the key component of the HX vertical impact crusher. The material enters the center of the impeller from the central feed pipe of the upper part of the impeller. The material is uniformly distributed to the respective emission channels of the impeller by the cloth cone at the center of the impeller. At the exit of the emission channel, a wear block made of a special material is installed and can be replaced. The impeller accelerates the material to a speed of 60-75m/s, impinges on the material lining in the vortex breaking chamber, and performs strong self-grinding. The upper and lower flow channel plates are installed between the cone cap and the wear block to protect The impeller is not subject to wear.

5. Spindle assembly

The spindle assembly is mounted on the base for transmitting power from the motor via the V-belt and supporting the rotational motion of the impeller. The spindle assembly is composed of a bearing housing, a main shaft, a bearing, and the like.

6. Base

The vortex crushing chamber, the main shaft assembly, the electric motor and the transmission device are all mounted on the bottom, the base structure is shaped, the middle part is a quadrangular prism space, and the center of the quadrangular prism space is used for installing the main shaft assembly, and the discharge channels are formed on both sides. The dual motors are mounted on the longitudinal ends of the base, and the base can be mounted on the bracket or directly on the foundation.

7. Transmission

The single-motor or double-motor driven belt drive mechanism (more than 75KW is a double motor drive), the two motors drive two motors respectively installed on the two sides of the spindle assembly, and the two motor pulleys are connected with the main shaft pulley, so that the two sides of the main shaft The force is balanced and no additional torque is generated.

8. Bracket

Depending on the location of the crusher - open-air or indoor work, consider configuring the bracket or not.

9. Lubrication system

The Mobil vehicle grease is specially concentrated and lubricated. The lubrication part is the upper part of the main shaft assembly and the lower part of the bearing. In order to make the oiling convenient, the oil pipe is used to lead to the outside of the machine for regular oiling of the oil pump.

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