Rock mass multistage crushing device
By designing a multi-stage rock crushing device with a support frame, crushing section, and conveying section, the problem of stone adhesion during transportation was solved, achieving efficient crushing and conveying, and improving crushing efficiency and finished product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHUANTIE BUILDING NEW MATERIALS (XUYONG) CO LTD
- Filing Date
- 2025-07-03
- Publication Date
- 2026-06-23
AI Technical Summary
In existing multi-stage rock crushing devices, moisture causes stones to stick to the conveyor belt during the stone transportation process, affecting the transportation efficiency.
A multi-stage rock crushing device was designed, comprising a support frame, a crushing section, and a conveying section. The crushing section guides the stone material into the conveyor belt through a guide chute, while the conveying section cleans the surface of the conveyor belt with cleaning rollers and brushes to prevent stone residue. Multi-stage crushing is achieved through different types of crushers.
It achieves efficient crushing and conveying of stone, prevents stone residue from affecting conveying efficiency, and improves crushing efficiency and finished product quality.
Smart Images

Figure CN224388940U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rock mass crushing technology, specifically a multi-stage rock mass crushing device. Background Technology
[0002] Multi-stage rock crushing equipment is a multi-stage crushing process for hard materials such as ores and rocks, and is commonly used in mining, sand and gravel aggregate production lines and other fields.
[0003] Existing multi-stage rock crushing devices use a combination of different crushing equipment to gradually crush large pieces of raw ore to the required particle size. Typically, the first crushing stage uses a gyratory crusher to crush the mined large pieces of raw ore to about 200-300mm; the second crushing stage uses a cone crusher to further crush the material from the first crushing stage to about 50-100mm; the third crushing stage uses a cone crusher to further finely crush the material from the second crushing stage to about 10-30mm; and the fourth crushing stage uses a vertical impact crusher to perform ultra-fine crushing or shaping of the material from the third crushing stage to improve particle shape quality. In existing multi-stage rock crushing devices, conveyor belts are used to transport the crushers during the crushing process. However, during the transportation of the stone, the stone often carries a certain amount of moisture, causing it to stick to the conveyor belt, which is difficult to clean and affects the efficiency of the conveying process. Utility Model Content
[0004] The purpose of this utility model is to provide a multi-stage rock crushing device to solve the problem mentioned in the background art that in the existing multi-stage rock crushing device, when crushing stone, the various crushers are transported by conveyor belt. However, when transporting stone, the stone often carries a certain amount of moisture, which causes the stone to stick to the conveyor belt, making it difficult to clean and affecting the efficiency of the conveying.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage rock crushing device, comprising a support frame, a crushing section, and a conveying section:
[0006] The crushing section is located on the top of the support frame. The crushing section has a crusher for crushing stone, which is located on the top of the support frame. The bottom of the crusher is provided with a guide trough. The conveying section is located on the side of the support frame. The conveying section has a frame located on the side of the support frame. The inside of the frame is a conveyor belt for conveying stone. The guide trough is located above the conveyor belt. A cleaning roller is laterally rotatably arranged inside the frame. The surface of the cleaning roller is surrounded by several bristles. The bristles abut against the surface of the conveyor belt. The frame rotates to clean the surface of the conveyor belt.
[0007] By adopting the above technical solution, efficient crushing and conveying of stone can be achieved. After the crusher crushes the stone, it falls into the conveyor belt through the guide chute. The cleaning roller cleans the surface of the conveyor belt with brushes to prevent stone residue from affecting the conveying efficiency.
[0008] Preferably, the crusher is equipped with various models for crushing stones of different sizes, and multiple crushers are connected end to end by a conveyor to continuously process the stones.
[0009] By adopting the above technical solution, multi-stage crushing of stone can be achieved, with different models of crushers crushing stone in sequence, thereby improving crushing efficiency and finished product quality.
[0010] Preferably, the conveying section also has side baffles vertically arranged on both sides of the frame, the height of which is higher than that of the conveyor belt.
[0011] By adopting the above technical solution, it is possible to prevent stones from falling off both sides of the conveyor belt during the conveying process, and the side baffles ensure stable conveying of stones.
[0012] Preferably, the conveying unit also has a power roller that is laterally rotatably disposed inside the frame, and a motor is disposed on the side of the frame, the output end of which is connected to the power roller.
[0013] By adopting the above technical solution, the power roller can be rotated by a motor, which in turn drives the conveyor belt to run, thereby realizing the automated conveying of stone materials.
[0014] Preferably, the conveying section also has a plurality of drive rollers that are laterally rotatably disposed inside the frame, the drive rollers being arranged parallel to the power rollers along the direction in which the frame is erected.
[0015] By adopting the above technical solution, the conveyor belt can be supported by the drive roller, ensuring smooth operation of the conveyor belt and reducing friction and wear.
[0016] Preferably, the conveying section further comprises a plurality of partitions neatly arranged on the surface of the conveyor belt, wherein the spacing between the plurality of partitions is equal.
[0017] By adopting the above technical solution, the stones can be divided into uniform batches by the partition, preventing the stones from piling up or sliding and improving the conveying efficiency.
[0018] Preferably, the conveying unit also has a power gear disposed at the end of the power roller away from the motor, and a transmission gear a is rotatably disposed on the side of the frame, the power gear being meshed with the transmission gear a.
[0019] By adopting the above technical solution, power can be transmitted from the power roller to other components through the meshing of the power gear and the transmission gear a, thereby achieving coordinated operation.
[0020] Preferably, the conveying unit also has a transmission gear b disposed at one end of the cleaning roller, the transmission gear b meshing with the transmission gear a, and a dustproof shell disposed on the side of the frame, the dustproof shell covering the power gear, the transmission gear a and the transmission gear b.
[0021] By adopting the above technical solution, the cleaning roller can be driven to rotate by the transmission gear b, and the dustproof housing protects the gear set from dust and debris.
[0022] Compared with the prior art, the beneficial effects of this utility model are: by setting up a crushing section and a conveying section, the stone can be crushed and conveyed efficiently. After the crusher crushes the stone, it falls into the conveyor belt through the guide chute. The cleaning roller cleans the surface of the conveyor belt with the brush to prevent stone residue from affecting the conveying efficiency. Furthermore, by using different models of crushers, multi-stage crushing of stone can be achieved. Different models of crushers 201 crush the stone in sequence, thereby improving crushing efficiency and finished product quality. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of this application;
[0024] Figure 2 This is a schematic diagram of the overall structure of this application;
[0025] Figure 3 This is a schematic cross-sectional view of the conveying section of this application;
[0026] Figure 4 This is a schematic cross-sectional view of the conveying section of this application;
[0027] Figure 5 This is a schematic diagram of the cross-sectional structure of the frame in this application.
[0028] In the diagram: 1. Support frame; 2. Crushing section; 201. Crusher; 202. Guide chute; 3. Conveying section; 301. Frame; 302. Side baffle; 303. Power roller; 304. Transmission roller; 305. Motor; 306. Conveyor belt; 307. Partition; 308. Power gear; 309. Transmission gear a; 310. Cleaning roller; 311. Transmission gear b; 312. Brush; 313. Dustproof housing. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] Example 1
[0031] Please see Figure 1 , Figure 2 and Figure 3 This embodiment provides a technical solution: a multi-stage rock crushing device, including a support frame 1, a crushing section 2, and a conveying section 3.
[0032] The crushing section 2 is located on top of the support frame 1. The crusher 201 is equipped with various models for crushing stones of different sizes. Multiple crushers 201 are connected end to end by the conveyor section 3 to continuously process the stones, realizing multi-stage crushing of the stones. Different models of crushers 201 crush the stones in sequence, improving crushing efficiency and finished product quality. The primary crusher 201 uses a gyratory crusher to crush the large raw ore to about 200-300mm. The secondary crusher 201 uses a cone crusher to further crush the material after the primary crushing to about 50-100mm. The tertiary crusher 201 uses a cone crusher to further crush the material after the secondary crushing to about 10-30mm. The quaternary crusher 201 uses a vertical impact crusher to perform ultra-fine crushing or shaping of the material after the tertiary crushing, improving particle shape quality.
[0033] The crushing section 2 has a crusher 201 installed on top of the support frame 1 for crushing stone. A guide groove 202 is provided at the bottom of the crusher 201. The conveying section 3 is located on the side of the support frame 1 and has a frame 301 installed on the side of the support frame 1. A conveyor belt 306 for conveying stone is installed inside the frame 301. The guide groove 202 is located above the conveyor belt 306. A cleaning roller 310 is installed inside the frame 301 for lateral rotation. A number of bristles 312 are arranged around the surface of the cleaning roller 310. The bristles 312 abut against the surface of the conveyor belt 306. The frame 301 rotates to clean the surface of the conveyor belt 306, which can realize efficient crushing and conveying of stone. After the crusher 201 crushes the stone, it falls into the conveyor belt 306 through the guide groove 202. The cleaning roller 310 cleans the surface of the conveyor belt 306 with the bristles 312 to prevent stone residue from affecting the conveying efficiency.
[0034] Example 2
[0035] Please see Figure 3 , Figure 4 and Figure 5 This embodiment provides a technical solution: a multi-stage rock crushing device, including a conveying unit 3, a frame 301, and a cleaning roller 310.
[0036] Side baffles 302 are provided on both sides of the frame 301. The height of the side baffles 302 is higher than that of the conveyor belt 306, which can prevent the stones from falling from both sides of the conveyor belt 306 during the conveying process. The side baffles 302 ensure stable conveying of the stones.
[0037] A power roller 303 is rotatably mounted inside the frame 301. A motor 305 is mounted on the side of the frame 301, and the output end of the motor 305 is connected to the power roller 303. The motor 305 is a servo motor, a high-precision, high-performance motor capable of precisely controlling position, speed, and acceleration. Its working principle is based on a closed-loop control system, mainly composed of a motor, encoder; or sensors and controller. This is existing technology and will not be elaborated further below. When selecting a model, its power should be matched to the needs of the device to ensure that the object to be driven is driven. The power roller 303 can be rotated by the motor 305, which drives the conveyor belt 306 to run, realizing the automated conveying of stone.
[0038] Several drive rollers 304 are rotatably arranged inside the frame 301. The drive rollers 304 are arranged parallel to the power rollers 303 along the direction in which the frame 301 is erected. The drive rollers 304 can support the conveyor belt 306, ensuring the smooth operation of the conveyor belt 306 and reducing friction and wear.
[0039] Several partitions 307 are provided on the surface of the conveyor belt 306. The spacing between the partitions 307 is equal. The partitions 307 can separate the stones into uniform batches, prevent the stones from piling up or sliding, and improve the conveying efficiency.
[0040] A power gear 308 is provided at the end of the power roller 303 away from the motor 305, and a transmission gear a309 is rotatably provided on the side of the frame 301. The power gear 308 and the transmission gear a309 are meshed and connected. Power can be transmitted from the power roller 303 to other components through the meshing of the power gear 308 and the transmission gear a309 to achieve linkage operation.
[0041] A transmission gear b311 is provided at one end of the cleaning roller 310. The transmission gear b311 is meshed with the transmission gear a309. A dustproof shell 313 is provided on the side of the frame 301. The dustproof shell 313 covers the power gear 308, the transmission gear a309 and the transmission gear b311. The cleaning roller 310 can be driven to rotate through the transmission gear b311. The dustproof shell 313 protects the gear set from dust and debris.
[0042] Working principle: First, the large blocks of raw ore are fed into the primary crusher 201 (gyratory crusher) for initial crushing via a conveyor. Then, the crushed material falls through the guide chute 202 onto the conveyor belt 306, and is conveyed by the conveyor section 3 to the secondary crusher 201 (cone crusher) for further crushing. Next, the material is conveyed again by another conveyor section 3 to the tertiary crusher 201 (cone crusher) for fine crushing. Finally, the material enters the quaternary crusher 201 (vertical impact crusher) for ultra-fine crushing or shaping to improve particle shape quality. The process continues between the four crushers 201. The device is constructed by connecting three conveying sections 3. During the conveying process, a motor 305 drives a power roller 303 to rotate, which in turn drives a conveyor belt 306. A transmission roller 304 supports the conveyor belt 306 to ensure smooth conveying. Side baffles 302 prevent stones from falling off the sides of the conveyor belt 306, and partitions 307 separate the stones into uniform batches to prevent accumulation or slippage. Simultaneously, a power gear 308 meshes with a transmission gear a 309, driving a transmission gear b 311 to rotate. This causes the bristles 312 on the cleaning roller 310 to continuously clean the surface of the conveyor belt 306, preventing stone residue from affecting conveying efficiency. A dustproof housing 313 protects the gear set from dust and debris contamination, extending the equipment's service life. Through multi-stage crushing and automated conveying, this device achieves efficient and continuous processing of stones, improving crushing efficiency and finished product quality.
[0043] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A rock mass multistage crushing device, characterized by, include: Support frame (1); Crushing section (2), which is disposed on the top of support frame (1), has a crusher (201) disposed on the top of support frame (1) for crushing stone, and a guide groove (202) is provided at the bottom of the crusher (201); The conveying unit (3) is disposed on the side of the support frame (1). The conveying unit (3) has a frame (301) disposed on the side of the support frame (1). A conveyor belt (306) for conveying stones is disposed inside the frame (301). A guide groove (202) is located above the conveyor belt (306). A cleaning roller (310) is rotatably disposed inside the frame (301). A plurality of bristles (312) are arranged around the surface of the cleaning roller (310). The bristles (312) abut against the surface of the conveyor belt (306). The frame (301) rotates to perform a cleaning operation on the surface of the conveyor belt (306).
2. The rock mass multi-stage crushing device according to claim 1, characterized in that: The crusher (201) is equipped with various models for crushing stones of different sizes. Multiple crushers (201) are connected end to end by a conveyor (3) to continuously process the stones.
3. The rock mass multi-stage crushing device according to claim 1, characterized in that: The conveying section (3) also has side baffles (302) vertically arranged on both sides of the frame (301), the height of which is higher than that of the conveyor belt (306).
4. The rock mass multi-stage crushing device according to claim 1, characterized in that: The conveying unit (3) also has a power roller (303) that is laterally rotatably disposed inside the frame (301). A motor (305) is disposed on the side of the frame (301), and the output end of the motor (305) is connected to the power roller (303).
5. The apparatus according to claim 4, wherein: The conveying unit (3) also has a plurality of drive rollers (304) arranged laterally inside the frame (301), which are parallel to the power rollers (303) along the direction in which the frame (301) is erected.
6. The rock mass multi-stage crushing device according to claim 1, characterized in that: The conveying section (3) also has a number of partitions (307) arranged neatly on the surface of the conveyor belt (306), with equal spacing between the partitions (307).
7. The rock mass multi-stage crushing device according to claim 1, characterized in that: The conveying unit (3) also has a power gear (308) disposed at the end of the power roller (303) away from the motor (305), and a transmission gear a (309) is rotatably disposed on the side of the frame (301), the power gear (308) meshing with the transmission gear a (309).
8. A rock mass multi-stage fragmentation device according to claim 7, characterised in that: The conveying unit (3) also has a transmission gear b (311) disposed at one end of the cleaning roller (310), which meshes with the transmission gear a (309). The side of the frame (301) is provided with a dustproof shell (313) which covers the power gear (308), the transmission gear a (309) and the transmission gear b (311).