Variable-frequency vertical shaft crusher for granite shaping and sand making
By incorporating baffles and conical filter plates into the granite crusher, the problems of increased equipment size and power consumption in existing technologies have been solved, achieving efficient stone crushing and re-crushing, and improving the pass rate of stone.
Patent Information
- Application Number
- CN202520439802.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-03-13
AI Technical Summary
Existing granite crushers suffer from increased equipment size due to multiple crushing processes and screw conveyor structures, leading to increased power consumption and inconvenient installation.
A variable frequency vertical shaft impact crusher for granite shaping and sand making is designed. By setting up a baffle block and a conical filter plate in the impeller body, the baffle block can prevent large stones from being crushed again, and the conical filter plate and spiral conveyor blades can be used to re-transport unqualified stones for further crushing, thereby reducing energy consumption and avoiding an increase in equipment size.
It improves the pass rate of stone materials, reduces energy consumption, avoids the problem of increased equipment size, and achieves a highly efficient crushing process.
Smart Images
Figure CN223655126U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of vertical shaft impact crushers, specifically a variable frequency vertical shaft impact crusher for granite shaping and sand making. Background Technology
[0002] The variable frequency vertical shaft impact crusher for granite shaping and sand making is a highly efficient crushing equipment. The core component of the vertical shaft impact crusher is a main shaft perpendicular to the ground, on which multiple crushing hammers or blades are mounted. During operation, the motor drives the main shaft to rotate at high speed through a transmission device. The material enters the crushing chamber through the feed inlet and is subjected to the violent impact, shearing, grinding, and mutual collision of the high-speed rotating hammers or blades, thereby achieving crushing.
[0003] Granite, after being crushed by a vertical shaft impact crusher, is discharged from the bottom. However, the crushed material varies in size and cannot directly meet processing requirements, necessitating additional screening and further crushing. Some improved crushers use multiple impellers for multiple crushing operations, but this increases power consumption. Others add a screw conveyor to one side of the crusher to further transport and crush unfiltered stone at the discharge port, but this increases the crusher's size and makes installation inconvenient. Therefore, those skilled in the art have provided a variable frequency vertical shaft impact crusher for granite shaping and sand making to solve the problems mentioned in the background art. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a variable frequency vertical shaft impact crusher for granite shaping and sand making. This solves the problems of existing crushers, which increase power consumption by using multiple impellers to crush stone multiple times, and the increased equipment size and inconvenient installation caused by adding a spiral conveyor structure on one side of the crusher to re-pick up unfiltered stone at the discharge port.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a variable frequency vertical shaft impact crusher for granite shaping and sand making, comprising a crusher shell, an inlet at the upper end of the crusher shell, an outlet at one side of the bottom end of the crusher shell, an impact plate installed on the inner wall of the crusher shell, an impeller body disposed inside the crusher shell, the impeller body including a top plate, a bottom plate and a hammer plate, a blocking block installed on the periphery of the bottom plate, a sleeve installed in the middle of the bottom plate, a rotating shaft disposed in the middle of the sleeve, a spiral conveying blade installed on the periphery of the rotating shaft, a motor installed at the bottom of the crusher shell, a conical filter plate disposed on the lower side of the impact plate, and a limit cover installed at the bottom end of the conical filter plate.
[0008] Preferably, the upper output end of the motor is driven and connected to the rotating shaft, the top end of the rotating shaft is fixedly connected to the top end of the sleeve, the sleeve is fixedly connected to the bottom plate, the upper end of the hammer plate is connected to the top plate, and the lower end of the hammer plate is connected to the bottom plate. When the stone enters the impeller body through the feed inlet, the rotating impeller body drives the stone to rotate and separate, and the feed is crushed by the hammer plate and the impact plate.
[0009] Preferably, the blocking block is protruding and its height is higher than that of the base plate. When the impeller rotates under the drive of the shaft and the motor, the blocking block can randomly block some of the larger stones, so that the larger stones that are about to fall will bounce up again under the impact and continue to be crushed. Compared with multi-stage crushing units, energy consumption is reduced.
[0010] Preferably, the top of the sleeve penetrates the bottom plate, and a discharge hole is provided on the periphery of the top of the sleeve. The bottom of the sleeve is provided with a limiting cover, and a feed hole is provided at the end of the sleeve inside the limiting cover. After being filtered by the conical filter plate, the stone is guided to the limiting cover at the bottom of the conical filter plate. Since the feed hole is provided on the sleeve inside the limiting cover, the stone that is still not qualified after being filtered by the conical filter plate is transported back to the impeller body by the spiral conveyor blades, so as to be crushed again.
[0011] (III) Beneficial Effects
[0012] Compared with the prior art, this utility model provides a variable frequency vertical shaft crusher for granite shaping and sand making, which has the following beneficial effects:
[0013] Through design, the vertical shaft impact crusher in this utility model consists of a crusher shell and an impeller body. A baffle block is installed around the bottom plate inside the impeller body. When the impeller body rotates under the drive of the shaft and motor, the baffle block randomly blocks some larger stones, causing larger stones that are about to fall to bounce back under impact and continue crushing. Compared to multi-stage crushing units, this reduces energy consumption. Subsequently, some unqualified stones are re-conveyed back into the impeller body for further crushing through the cooperation of a conical filter plate, a sleeve, and a shaft with spiral conveying blades inside the sleeve. This improves the stone qualification rate. Furthermore, this further crushing mechanism is located inside the crusher shell, avoiding the problem of increased equipment size caused by traditional conveying mechanisms. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of a variable frequency vertical shaft impact crusher for granite shaping and sand making provided in the embodiments of this application.
[0015] Figure 2This is a schematic diagram of the discharge port structure of a variable frequency vertical shaft impact crusher for granite shaping and sand making provided in an embodiment of this application.
[0016] Figure 3 This is a structural cross-sectional view of the outer shell of a variable frequency vertical shaft impact crusher for granite shaping and sand making provided in an embodiment of this application.
[0017] Figure 4 This is a structural cross-sectional view of the impeller body in a variable frequency vertical shaft crusher for granite shaping and sand making provided in an embodiment of this application.
[0018] In the diagram: 1. Crusher casing; 2. Feed inlet; 3. Discharge outlet; 4. Impeller body; 401. Top plate; 402. Bottom plate; 4021. Baffle block; 403. Hammer plate; 5. Sleeve; 501. Discharge hole; 502. Feed hole; 6. Shaft; 601. Screw conveyor blade; 7. Motor; 8. Conical filter plate; 801. Limit cover; 9. Impact plate. Detailed Implementation
[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0020] The variable frequency vertical shaft impact crusher for granite shaping and sand making provided by this utility model is described in detail below. Figure 1 , Figure 2 , Figure 3 , Figure 4 The crusher includes a crusher housing 1, with a feed inlet 2 at the upper end and a discharge outlet 3 on one side of the bottom end. An impact plate 9 is installed on the inner wall of the crusher housing 1. An impeller body 4 is installed inside the crusher housing 1. The impeller body 4 includes a top plate 401, a bottom plate 402, and a hammer plate 403. A stop block 4021 is installed around the bottom plate 402. A sleeve 5 is installed in the middle of the bottom plate 402. A rotating shaft 6 is installed in the middle of the sleeve 5. A spiral conveyor blade 601 is installed around the rotating shaft 6. A motor 7 is installed at the bottom of the crusher housing 1. A conical filter plate 8 is installed below the impact plate 9. A limit cover 801 is installed at the bottom end of the conical filter plate 8.
[0021] Please see Figure 2 , Figure 3 , Figure 4The upper output end of the motor 7 is driven and connected to the rotating shaft 6. The top end of the rotating shaft 6 is fixedly connected to the top end of the sleeve 5. The sleeve 5 is fixedly connected to the bottom plate 402. The upper end of the hammer plate 403 is connected to the top plate 401, and the lower end of the hammer plate 403 is connected to the bottom plate 402. When the stone enters the impeller body 4 through the feed inlet 2, the rotating impeller body 4 drives the stone to rotate and separate. The stone is then crushed by the hammer plate 403 and the impact plate 9. The blocking block 4021 is protruding and its height is higher than that of the bottom plate 402. When the impeller body 4 rotates under the drive of the rotating shaft 6 and the motor 7, the blocking block 4021 can randomly block some of the larger stones, thus preventing them from falling. Larger stones bounce back under impact and continue to be crushed. Compared with multi-stage crushing units, this reduces energy consumption. The top of the sleeve 5 penetrates the bottom plate 402. The top of the sleeve 5 has a discharge hole 501 on its periphery. The bottom of the sleeve 5 is set in the limiting cover 801. The end of the sleeve 5 inside the limiting cover 801 has a feed hole 502. After being filtered by the conical filter plate 8, the stones are guided to the limiting cover 801 at the bottom of the conical filter plate 8. Since the feed hole 502 is opened on the sleeve 5 inside the limiting cover 801, stones that are still not qualified after being filtered by the conical filter plate 8 are transported back into the impeller body 4 by the spiral conveyor blade 601, and then crushed again.
[0022] The vertical shaft impact crusher in this utility model consists of a crusher housing 1 and an impeller body 4. The crusher housing 1 has a feed inlet 2 at its top and a discharge outlet 3 on one side of its bottom. The impeller body 4 includes a top plate 401, a bottom plate 402, and a hammer plate 403 on its inner side, with the hammer plate 403 positioned between the bottom plate 402 and the top plate 401. A through-hole for feeding is provided on the top plate 401. A sleeve 5 is fixedly installed on the bottom plate 402, extending through and protruding from the bottom plate 402. The upper end of 02 is provided with a discharge hole 501, and the bottom end of the sleeve 5 is provided with a feed hole 502. A rotating shaft 6 is fixedly installed inside the sleeve 5. A spiral conveyor blade 601 is installed on the outer wall of the rotating shaft 6. An impact plate 9 is provided around the hammer plate 403. The impact plate 9 is connected to the inner wall of the crusher shell 1. When the stone enters the impeller body 4 through the feed port 2, the rotating impeller body 4 drives the stone to rotate and separate, and crushes the material through the hammer plate 403 and the impact plate 9.
[0023] A blocking block 4021 is installed on the periphery of the base plate 402, and the blocking block 4021 is in an upward protruding state. Since the crushed stones between the impact plate 9 and the hammer plate 403 are rotating around the impeller body 4, under the obstruction of the blocking block 4021, some of the larger stones bounce up under the obstruction of the blocking block 4021 and are crushed again, while the smaller stones fall onto the conical filter plate 8 through the gap between the impeller body 4 and the crusher housing 1 for filtration.
[0024] The filtered stone is guided through the conical filter plate 8 to the limiting cover 801 at the bottom of the conical filter plate 8. Since the sleeve 5 inside the limiting cover 801 has a feed hole 502, the stone that is still qualified after being filtered by the conical filter plate 8 is transported back to the impeller body 4 by the spiral conveyor blade 601, so as to be crushed again.
[0025] In the above structure, a blocking block 4021 is installed around the bottom plate 402 inside the impeller body 4. When the impeller body 4 rotates under the drive of the rotating shaft 6 and the motor 7, the blocking block 4021 can randomly block some of the larger stones, so that the larger stones that are about to fall will bounce up again under the impact and continue to be crushed. Compared with the multi-stage crushing unit, the energy consumption is reduced. Subsequently, some unqualified stones are transported back into the impeller body 4 with the cooperation of the conical filter plate 8, the sleeve 5 and the rotating shaft 6 with the spiral conveying blade 601 inside the sleeve 5 for further crushing, which improves the qualification rate of the stones. Moreover, the mechanism for further crushing is set inside the crusher shell 1, which avoids the problem of increased equipment volume caused by the installation of traditional conveying mechanisms.
Claims
1. A variable frequency vertical shaft impact crusher for shaping and sand making of granite, comprising a crusher shell (1), characterized in that: The upper end of the crusher shell (1) is provided with a feed inlet (2), and the bottom end of the crusher shell (1) is provided with a discharge outlet (3). An impact plate (9) is installed on the inner wall of the crusher shell (1). An impeller body (4) is provided inside the crusher shell (1). The impeller body (4) includes a top plate (401), a bottom plate (402) and a hammer plate (403). A stop block (4021) is installed on the periphery of the bottom plate (402). A sleeve (5) is installed in the middle of the bottom plate (402). A rotating shaft (6) is provided in the middle of the sleeve (5). A spiral conveyor blade (601) is installed on the periphery of the rotating shaft (6). A motor (7) is installed at the bottom of the crusher shell (1). A conical filter plate (8) is provided on the lower side of the impact plate (9). A limit cover (801) is installed at the bottom of the conical filter plate (8).
2. The variable frequency vertical shaft impact crusher for granite shaping and sand making according to claim 1, characterized in that: The upper end of the hammer plate (403) is connected to the top plate (401), and the lower end of the hammer plate (403) is connected to the bottom plate (402).
3. The variable frequency vertical shaft impact crusher for granite shaping and sand making according to claim 1, characterized in that: The bottom of the sleeve (5) is set in the limiting cover (801), and the end of the sleeve (5) inside the limiting cover (801) is provided with a feed hole (502).
4. The variable frequency vertical shaft impact crusher for granite shaping and sand making according to claim 1, characterized in that: The top end of the sleeve (5) penetrates the bottom plate (402), and a discharge hole (501) is provided on the periphery of the top end of the sleeve (5).
5. A variable frequency vertical shaft impact crusher for granite shaping and sand making according to claim 1, characterized in that: The upper output end of the motor (7) is driven to the rotating shaft (6), the top end of the rotating shaft (6) is fixedly connected to the top end of the sleeve (5), and the sleeve (5) is fixedly connected to the base plate (402).
6. A variable frequency vertical shaft impact crusher for granite shaping and sand making according to claim 1, characterized in that: The block (4021) is protruding, and the height of the block (4021) is higher than the height of the base plate (402).