Impact crusher capable of avoiding blanking blockage
By introducing a vibrating screen and a top-discharge cylinder mechanism into the impact crusher, the problem of material blockage is solved, achieving a highly efficient crushing process and equipment protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-24
- Publication Date
- 2026-04-07
AI Technical Summary
Impact crushers are prone to blockage during material feeding due to sticky dust or materials, which can lead to blocked channels, affect work efficiency, and potentially damage the equipment.
A vibration mechanism drives the screen plate to shake and screen the material, removing sticky dust. The ejector cylinder quickly removes blockages, and the adjustment and drive mechanisms improve the material throughput.
It effectively avoids material blockage in the crusher, improves work efficiency, and can quickly handle blockages caused by large pieces of material, protecting equipment safety.
Smart Images

Figure CN224086863U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of crushing equipment technology, specifically to an impact crusher that avoids material blockage. Background Technology
[0002] An impact crusher is a crushing machine that uses impact energy to crush materials. Its principle is that a motor drives the crushing drum to rotate at high speed. When material enters the impact zone of the hammers in the crushing drum, it collides violently with the hammers and is then thrown against the impact liner for further crushing. It then bounces back from the impact liner to the hammer impact zone for repeated crushing. This process is repeated multiple times. The material, starting from large to small, enters the impact chamber formed by the impact liner and the crushing drum for repeated crushing until it is crushed to the required particle size and then discharged from the outlet. Impact crushers are widely used for crushing materials of medium hardness and below. These materials often carry a lot of sticky dust during feeding. When this dust is too wet or accumulates to a certain thickness, it will adhere to the impact chamber or near the discharge port, clogging the crusher's channels and making cleaning very difficult. Furthermore, clogging can also occur when the feeding speed is too fast or the material particles are too large, requiring immediate shutdown and unloading to prevent mechanical damage. A new type of device is needed to solve these problems. Utility Model Content
[0003] To address the aforementioned problems, this utility model proposes an impact crusher that avoids material blockage. The crusher includes a casing, a crushing cylinder rotatably connected between the two inner side walls of the casing, a drive mechanism connected to the crushing cylinder, a plurality of impact liners on one side of the crushing cylinder that engage with the front of the impact liners, the upper end of the impact liners being hinged to the inner side wall of the casing, an adjustment mechanism connected to the back of the impact liners, and a clearance fit between the other side of the crushing cylinder and an internal vertical partition plate of the casing. A screen plate is hinged to the top of the vertical partition plate, the screen plate being located below the feed inlet on the top surface of the casing, and the bottom surface of the screen plate engaging with a vibration mechanism.
[0004] Furthermore, the vibration mechanism includes an ejector cylinder, which is installed on the outside of the end plate of the housing. The ejector cylinder is laterally connected to the bottom surface of the carrier plate. The carrier plate is slidably connected to the through groove opened on the end plate of the housing. A camshaft is rotatably connected to the inner side of the top surface of the carrier plate. The cam of the camshaft shaft is engaged with the bottom surface of the screen plate. A vibration motor is installed on the outer side of the top surface of the carrier plate. The output pulley of the vibration motor is connected to the pulley at the end of the camshaft shaft through a transmission belt.
[0005] Furthermore, the adjustment mechanism includes an adjustment cylinder, the cylinder body of which is hinged to the lugs on both sides of the through hole in the housing, the piston rod of which extends into the housing and is hinged to the back side of the impact liner, the piston rod of which is provided with a disc, and a buffer spring is provided between the disc and the inner wall of the housing, and the piston rod of which passes through the buffer spring.
[0006] Furthermore, the drive mechanism includes a drive motor, which is mounted on the housing base plate, and the output pulley of the drive motor is connected to the shaft pulley of the crushing drum shaft via a transmission belt.
[0007] Furthermore, a conveyor belt is provided at the bottom of the casing, with the belt surface located below the casing outlet.
[0008] The beneficial effects of this utility model are as follows: Under the drive of the vibration mechanism, the screen plate of this utility model can shake and screen the material input into the machine casing, which not only improves the material throughput, but also shakes off the sticky dust attached to the material, avoiding the blockage phenomenon of the crusher during material feeding, and improving working efficiency. When the material is completely blocked at the inlet of the crusher, the camshaft can be moved away from under the screen plate by the ejector cylinder, thereby quickly releasing the blocked material and avoiding damage to the equipment. Attached Figure Description
[0009] Figure 1 This is a front view structural diagram of the present utility model;
[0010] Figure 2 This is a top view of the structure of this utility model.
[0011] The reference numerals in the attached drawings are explained as follows: 1. Machine casing; 101. Vertical partition plate; 102. Feed inlet; 103. Through groove; 104. Through hole; 2. Crushing cylinder; 3. Impact liner plate; 4. Screen plate; 5. Ejector cylinder; 6. Carrier plate; 7. Camshaft; 8. Vibration motor; 9. Adjusting cylinder; 901. Disc; 10. Buffer spring; 11. Drive motor; 12. Conveyor belt. Detailed Implementation
[0012] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0013] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0014] The present invention will be further described below with reference to the accompanying drawings:
[0015] like Figure 1 and Figure 2 As shown, an impact crusher for avoiding material blockage includes a casing 1, a conveyor belt 12 at the bottom of the casing 1, the belt surface of the conveyor belt 12 being located below the outlet of the casing 1, a crushing cylinder 2 being rotatably connected between the two inner side walls of the casing 1, a number of hammer plates embedded in the body of the crushing cylinder 2, and the crushing cylinder 2 being driven to rotate by a drive mechanism, the drive mechanism including a drive motor 11, the drive motor 11 being mounted on the base plate of the casing 1, and the output pulley of the drive motor 11 being connected to the shaft pulley of the crushing cylinder 2 via a transmission belt.
[0016] In this embodiment, three impact liner plates 3 are provided on one side of the crushing cylinder 2, which are connected end to end. The front of each impact liner plate 3 is in clearance fit with the crushing cylinder 2. The upper end of the impact liner plate 3 is hinged to the inner wall of the housing 1. The back side of the impact liner plate 3 is connected to an adjustment mechanism. The adjustment mechanism includes an adjustment cylinder 9. The cylinder body of the adjustment cylinder 9 is hinged to the ear plates on both sides of the through hole 104 of the housing 1. The piston rod of the adjustment cylinder 9 extends into the housing 1 and is hinged to the back side of the impact liner plate 3. The piston rod of the adjustment cylinder 9 is provided with a disc 901. A buffer spring 10 is provided between the disc 901 and the inner wall of the housing 1. The piston rod of the adjustment cylinder 9 passes through the buffer spring 10.
[0017] In this embodiment, the other side of the crushing cylinder 2 is fitted with the vertical partition 101 inside the casing 1 with a clearance. The vertical partition 101 and the inner wall of the casing 1 form a vertical channel. The vertical channel is located directly below the feed inlet 102 on the top surface of the casing 1. The top of the vertical partition 101 is hinged to the hinge shaft in the middle of the bottom surface of the screen plate 4. The hinge shaft passes through the side wall of the casing 1 and is bent into a handle. The screen end of the screen plate 4 is located at the top of the vertical channel. The bottom surface of the screen end is fitted with a vibration mechanism. The vibration mechanism includes an ejector cylinder 5. The ejector cylinder 5 is installed on the outside of the end plate of the casing 1. The ejector cylinder 5 is horizontally connected to the bottom surface of the carrier plate 6. The carrier plate 6 is slidably connected to the through groove 103 opened on the end plate of the casing 1. The inner side of the top surface of the carrier plate 6 is rotatably connected to the camshaft 7. The cam of the camshaft 7 can fit against the bottom surface of the screen plate 4. The outer side of the top surface of the carrier plate 6 is fitted with a vibration motor 8. The output pulley of the vibration motor 8 is connected to the pulley at the end of the camshaft 7 through a transmission belt.
[0018] The working principle of this utility model is as follows:
[0019] The material to be crushed is fed into the casing 1. The material falls onto the screen plate 4 from the feed port 102. The vibration motor 8 is started to drive the camshaft 7 to rotate. The camshaft 7 reciprocates to lift the screen plate 4, causing the material to shake. Fine dust mixed in with the material passes through the screen plate 4 and falls directly onto the conveyor belt 12 through the vertical channel. The remaining material is shaken into the action zone of the crushing cylinder 2 along the screen plate 4, where it collides violently with the high-speed rotating hammer. It is then thrown onto the impact liner 3 for further crushing and bounces back from the impact liner 3 to the hammer action zone for repeated crushing. This process is repeated multiple times until the material is crushed to the required particle size and then discharged from the discharge port of the casing 1 onto the conveyor belt 12. When large pieces of material become stuck in the casing 1, the ejector cylinder 5 is activated to move the camshaft 7 away from under the screen plate 4. The screen plate 4 then flips under the weight of the material, opening the vertical channel. The material falls directly onto the conveyor belt 12 from the vertical channel. The conveyor belt 12 rotates in the opposite direction, conveying the large pieces of material out of the casing 1 through the emergency outlet, preventing damage to the machinery. This invention avoids blockages in the crusher during material feeding, improves crushing efficiency, and allows for rapid emergency handling. It is convenient, efficient, and has a high safety factor.
[0020] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. An impact crusher for avoiding material blockage, comprising a casing (1), characterized in that: The crushing cylinder (2) is rotatably connected between the two inner walls of the casing (1). The crushing cylinder (2) is connected to the drive mechanism. One side of the crushing cylinder (2) is in cooperation with the front of several impact liner plates (3). The upper end of the impact liner plates (3) is hinged to the inner wall of the casing (1). The back side of the impact liner plates (3) is connected to the adjustment mechanism. The other side of the crushing cylinder (2) is in clearance cooperation with the vertical partition plate (101) inside the casing (1). The top of the vertical partition plate (101) is hinged to the screen plate (4). The screen plate (4) is located below the feed inlet (102) on the top surface of the casing (1). The bottom surface of the screen plate (4) is in cooperation with the vibration mechanism.
2. The impact crusher for avoiding material blockage according to claim 1, characterized in that: The vibration mechanism includes an ejector cylinder (5), which is installed on the outside of the end plate of the housing (1). The ejector cylinder (5) is laterally connected to the bottom surface of the carrier plate (6). The carrier plate (6) is slidably connected to the through groove (103) opened on the end plate of the housing (1). The inner side of the top surface of the carrier plate (6) is rotatably connected to the camshaft (7). The cam of the camshaft (7) shaft body is engaged with the bottom surface of the sieve plate (4). The outer side of the top surface of the carrier plate (6) is equipped with a vibration motor (8). The output pulley of the vibration motor (8) is connected to the pulley at the end of the camshaft (7) shaft through a transmission belt.
3. The impact crusher for avoiding material blockage according to claim 1, characterized in that: The adjustment mechanism includes an adjustment cylinder (9). The cylinder body of the adjustment cylinder (9) is hinged to the ear plates on both sides of the through hole (104) of the housing (1). The piston rod of the adjustment cylinder (9) extends into the housing (1) and is hinged to the back side of the counterattack liner (3). The piston rod of the adjustment cylinder (9) is provided with a disc (901). A buffer spring (10) is provided between the disc (901) and the inner wall of the housing (1). The piston rod of the adjustment cylinder (9) passes through the buffer spring (10).
4. The impact crusher for avoiding material blockage according to claim 1, characterized in that: The drive mechanism includes a drive motor (11), which is mounted on the base plate of the housing (1). The output pulley of the drive motor (11) is connected to the shaft pulley of the crushing cylinder (2) via a transmission belt.
5. The impact crusher for avoiding material blockage according to claim 1, characterized in that: The bottom of the housing (1) is provided with a conveyor belt (12), and the surface of the conveyor belt (12) is located below the outlet of the housing (1).