Movable building slag crusher capable of adjusting crushing ratio
By designing a mobile slag crusher with an adjustable crushing ratio, and utilizing components such as a bidirectional screw and casters, the problems of fixed crushing ratio and poor mobility were solved, thereby improving crushing efficiency and flexibility.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LUZHOU XINGJIANG CONSTR WASTE DISPOSAL CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-05-08
AI Technical Summary
Existing crushers have a fixed crushing ratio, which cannot be adjusted flexibly, and they cannot be moved flexibly, resulting in poor applicability and flexibility.
An adjustable crushing ratio mobile slag crusher was designed. The crushing roller spacing is automatically adjusted through components such as a bidirectional screw, a moving block, a first bearing, and a driven bevel gear. It is also equipped with casters and a support mechanism to achieve flexible movement and stable support of the machine.
It enables the adjustment of the crushing ratio according to demand, improving crushing efficiency and adaptability, while also being able to move flexibly and work stably in different scenarios.
Smart Images

Figure CN224208097U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of construction waste crushing technology, and more specifically, to a mobile construction waste crusher with an adjustable crushing ratio. Background Technology
[0002] With the acceleration of urbanization and the continuous advancement of infrastructure construction, the amount of construction waste generated has increased dramatically. Construction waste mainly includes waste concrete, bricks, and stone. If not properly handled, it will not only occupy a large amount of land resources but also cause serious environmental pollution. In the process of reusing construction waste, crushers are needed to process it.
[0003] Currently, existing crushers have the following problems:
[0004] (1) Most construction waste crushers on the market have a constant gap between the crushing rollers, resulting in a fixed crushing ratio. They cannot flexibly adjust the crushing ratio according to different types of construction waste and processing requirements, which leads to poor applicability of the crusher.
[0005] Current crushers are stationary and cannot be moved flexibly according to the location of construction waste, resulting in poor flexibility.
[0006] Therefore, we have made improvements to this and proposed a mobile slag crusher with an adjustable crushing ratio. Utility Model Content
[0007] The purpose of this invention is to address the existing problems of inconvenience in adjusting the crushing ratio and inconvenience in moving the equipment.
[0008] To achieve the above-mentioned objectives, this utility model provides the following technical solution:
[0009] A mobile slag crusher with an adjustable crushing ratio is proposed to improve the above-mentioned problems.
[0010] The present invention is as follows:
[0011] The device includes a crushing box containing two symmetrically arranged crushing rollers. Two fixed plates are symmetrically and fixedly connected to one side wall of the crushing box. A bidirectional screw is rotatably connected between the two fixed plates. A first motor is fixedly connected to one of the fixed plates, and the drive end of the first motor is fixedly connected to the shaft end of the bidirectional screw. Two moving blocks are symmetrically and threadedly connected to the bidirectional screw. Guide rods are slidably connected within each of the two moving blocks, and both ends of the guide rods are fixedly connected to the fixed plates. A first bearing is fixedly connected to the inner end of each of the two moving blocks, and the inner sidewall of the inner ring of the first bearing is fixedly connected to the shaft end of the crushing roller. A driven bevel gear is fixedly connected to the other shaft end of each of the two crushing rollers. A connecting plate is rotatably connected to the end of each crushing roller closest to the driven bevel gear. An installation plate is fixedly connected to the outer end of the crusher. A second bearing is fixedly connected to each of the installation plates. A rotating tube is fixedly connected to the inner wall of the inner ring of the second bearing. The rotating tube passes through the installation plate and extends to the outside. A driving bevel gear that meshes with the driven bevel gear is fixedly connected to the rotating tube. A splined shaft is slidably connected inside the rotating tube. Assembly plates are rotatably connected to both ends of the splined shaft. The assembly plates are fixedly connected to the crushing box. A second motor is fixedly connected to one of the assembly plates. The drive end of the second motor is fixedly connected to the shaft end of the splined shaft. A guide post is slidably connected inside the installation plate. Both ends of the guide post are fixedly connected to the assembly plate. A bottom frame is fixedly connected to the crushing box by a fixing rod. Universal wheels are fixedly connected to the four corners of the lower end face of the bottom frame. A support mechanism is provided inside the bottom frame.
[0012] As a preferred technical solution of this utility model, the support mechanism includes a support plate fixed inside a fixed rod. The upper end of the support plate is symmetrically connected to two hydraulic cylinders. The driving ends of the two hydraulic cylinders pass through the support plate and are fixedly connected to a lifting plate. Support columns are fixedly connected to the four corners of the lower end of the lifting plate, and support feet are fixedly connected to the bottom of the support columns.
[0013] As a preferred technical solution of this utility model, a guide plate is provided on the upper side of the crushing roller, the guide plate is fixedly connected to the crushing box, and the guide plate is designed to be inclined.
[0014] As a preferred technical solution of this utility model, a feed hopper is fixedly connected to the upper end face of the crushing box.
[0015] As a preferred technical solution of this utility model, a control panel is fixedly connected to the rear side wall of the crushing box, and the first motor and the second motor are electrically connected to the control panel respectively.
[0016] As a preferred technical solution of this utility model, two movable openings matching the ends of the crushing roller shaft are provided on the left and right side walls of the crushing box.
[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0018] In the solution of this utility model:
[0019] 1. By setting up a bidirectional screw, a moving block, a first bearing, a driven bevel gear, a connecting plate, a mounting plate, a second bearing, a rotating tube, a driving bevel gear, and a splined shaft, the automatic adjustment of the distance between the two crushing rollers is realized to achieve the purpose of adjusting the crushing ratio. The crushing ratio can be adjusted according to actual needs to adapt to the crushing requirements of different particle sizes of slag, improve crushing efficiency and flexibility, and solve the problem of inconvenience in adjusting the crushing ratio according to actual needs in the existing technology.
[0020] 2. With the addition of casters and a support mechanism, the device can move flexibly according to different work scenarios, adapting to different working environments and requirements. When stationary, it can also support the crusher, ensuring stability during operation and solving the problem of inconvenient flexible movement in existing technologies. Attached Figure Description
[0021] Figure 1 A schematic diagram of the overall structure of this utility model;
[0022] Figure 2 A schematic diagram of the rear structure provided by this utility model;
[0023] Figure 3 This is a schematic diagram of the internal structure of the crushing box provided by this utility model;
[0024] Figure 4 A schematic diagram of the driving structure provided by this utility model;
[0025] Figure 5 A schematic diagram of the bottom structure provided for this utility model;
[0026] Figure 6 This is a schematic diagram of the rear view structure provided by this utility model.
[0027] The image shows:
[0028] 1. Crushing box; 2. Crushing roller; 3. Fixed plate; 4. Bidirectional screw; 5. First motor; 6. Moving block; 7. Guide rod; 8. First bearing; 9. Driven bevel gear; 10. Connecting plate; 11. Mounting plate; 12. Second bearing; 13. Rotary tube; 14. Driven bevel gear; 15. Splined shaft; 16. Assembly plate; 17. Second motor; 18. Guide column; 19. Fixed rod; 20. Base frame; 21. Casters; 22. Support mechanism; 2201. Support plate; 2202. Hydraulic cylinder; 2203. Lifting plate; 2204. Support column; 2205. Support foot; 23. Guide plate; 24. Feed hopper; 25. Control panel; 26. Moving opening. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.
[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, this embodiment proposes a mobile slag crusher with an adjustable crushing ratio, including a crushing box 1. Two crushing rollers 2 are symmetrically arranged inside the crushing box 1. Two fixed plates 3 are symmetrically and fixedly connected to one side wall of the crushing box 1. A bidirectional screw 4 is rotatably connected between the two fixed plates 3. A first motor 5 is fixedly connected to one of the fixed plates 3. The drive end of the first motor 5 is fixedly connected to the shaft end of the bidirectional screw 4. Two moving blocks 6 are symmetrically and threadedly connected to the bidirectional screw 4. Guide rods 7 are slidably connected inside each of the two moving blocks 6. The two ends of the guide rods 7 are respectively fixedly connected to the fixed plates 3. The inner ends of the two moving blocks 6 are fixed. A first bearing 8 is connected, and the inner wall of the inner ring of the first bearing 8 is fixedly connected to the shaft end of the crushing roller 2. A driven bevel gear 9 is fixedly connected to the other shaft end of each of the two crushing rollers 2. A connecting piece 10 is rotatably connected to the end of the crushing roller 2 closest to the driven bevel gear 9. A mounting plate 11 is fixedly connected to the outer end of the connecting piece 10. A second bearing 12 is fixedly connected to each mounting plate 11. A rotating tube 13 is fixedly connected to the inner wall of the inner ring of the second bearing 12. The rotating tube 13 passes through the mounting plate 11 and extends to the outside. A driving bevel gear 14, meshing with the driven bevel gear 9, is fixedly connected to the rotating tube 13. A sliding connection is made inside the rotating tube 13. Splined shaft 15, with mounting plates 16 rotatably connected to both ends of splined shaft 15. Mounting plates 16 are fixedly connected to crushing box 1. A second motor 17 is fixedly connected to one of the mounting plates 16, and the drive end of the second motor 17 is fixedly connected to the shaft end of splined shaft 15. Guide posts 18 are slidably connected inside mounting plate 11, with both ends of the guide posts 18 fixedly connected to mounting plate 16. Crushing box 1 is fixedly connected to a base frame 20 via a fixing rod 19. Universal wheels 21 are fixedly connected to the four corners of the lower end face of the base frame 20. A support mechanism 22 is provided inside the base frame 20. A first motor 5 drives a bidirectional screw 4 to rotate, driving two moving... The moving block 6 moves along the guide rod 7. The movement of the moving block 6 drives the first bearing 8 to move, thereby driving the crushing roller 2 to move, realizing the adjustment of the distance between the two crushing rollers 2, and achieving the purpose of adjusting the crushing ratio. The movement of the crushing roller 2 will drive the connecting plate 10 and the components on the mounting plate 11 to move accordingly. The second motor 17 drives the spline shaft 15 to rotate. The rotation of the spline shaft 15 drives the rotating tube 13 and the driving bevel gear 14 to rotate simultaneously. The rotation of the driving bevel gear 14 drives the driven bevel gear 9 to rotate, thereby enabling the crushing roller 2 to rotate. The rotation of the crushing roller 2 can crush the slag.
[0031] like Figure 1 , Figure 2 , Figure 5 and Figure 6As shown, in a preferred embodiment, based on the above method, the support mechanism 22 further includes a support plate 2201 fixed inside the fixed rod 19. The upper end of the support plate 2201 is symmetrically connected to two hydraulic cylinders 2202. The driving ends of the two hydraulic cylinders 2202 pass through the support plate 2201 and are fixedly connected to a lifting plate 2203. Support columns 2204 are fixedly connected to the four corners of the lower end of the lifting plate 2203. Support feet 2205 are fixedly connected to the bottom ends of the support columns 2204. The lifting plate 2203 is driven by the two hydraulic cylinders 2202, and the lifting plate 2203 drives the support columns 2204 and support feet 2205 to descend, so that the support feet 2205 contact the ground, thereby lifting the caster wheel 21 and ensuring the stability of the crusher during operation.
[0032] like Figure 1 and Figure 3 As shown, in a preferred embodiment, based on the above method, a guide plate 23 is further provided on the upper side of the crushing roller 2. The guide plate 23 is fixedly connected to the crushing box 1 and the guide plate 23 is inclined. The guide plate 23 facilitates the smooth entry of materials into the crushing box 1 and improves the crushing efficiency.
[0033] like Figure 1 and Figure 2 As shown, in a preferred embodiment, based on the above method, a feed hopper 24 is further fixedly connected to the upper end face of the crushing box 1; the feed hopper 24 facilitates the pouring of slag into the crushing box 1.
[0034] like Figure 2 and Figure 6 As shown, in a preferred embodiment, based on the above method, a control panel 25 is further fixedly connected to the rear side wall of the crushing box 1, and the first motor 5 and the second motor 17 are electrically connected to the control panel 25 respectively; the control panel 25 realizes automated control, improving the convenience and accuracy of operation.
[0035] like Figure 1 and Figure 2 As shown, in a preferred embodiment, based on the above method, two movable openings 26 matching the shaft ends of the crushing rollers 2 are further provided on the left and right side walls of the crushing box 1; the movable openings 26 facilitate the adjustment of the spacing between the crushing rollers 2, thereby realizing the adjustment of the crushing ratio.
[0036] Specifically, in use, this mobile slag crusher with adjustable crushing ratio is moved to the target position via casters 21. Two hydraulic cylinders 2202 drive the lifting plate 2203, which in turn lowers the support column 2204 and support feet 2205, bringing the support feet 2205 into contact with the ground, thereby raising the casters 21. When the crushing ratio needs to be adjusted, the first motor 5 drives the bidirectional screw 4 to rotate, causing two moving blocks 6 to move along the guide rod 7. The movement of the moving blocks 6 causes the first bearing 8 to move, which in turn moves the crushing roller 2. The adjustment of the distance between the two crushing rollers 2 allows for the adjustment of the crushing ratio. Simultaneously, the movement of the crushing rollers 2 causes the connecting plate 10 and the components on the mounting plate 11 to move accordingly. Then, the second motor 17 drives the spline shaft 15 to rotate. The rotation of the spline shaft 15 causes the rotating tube 13 and the driving bevel gear 14 to rotate simultaneously. The rotation of the driving bevel gear 14 causes the driven bevel gear 9 to rotate, thereby enabling the crushing rollers 2 to rotate. The slag is fed into the crushing box 1 through the feed hopper 24, and then guided by the guide plate 23 into the space between the crushing rollers 2 for crushing.
[0037] All technical features in this embodiment can be freely combined according to actual needs.
[0038] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.
Claims
1. A mobile slag crusher with adjustable crushing ratio, comprising a crushing box (1), characterized in that, Two crushing rollers (2) are symmetrically arranged inside the crushing box (1). Two fixed plates (3) are symmetrically and fixedly connected to one side wall of the crushing box (1). A bidirectional screw (4) is rotatably connected between the two fixed plates (3). A first motor (5) is fixedly connected to one of the fixed plates (3). The driving end of the first motor (5) is fixedly connected to the shaft end of the bidirectional screw (4). Two moving blocks (6) are symmetrically and threadedly connected to the bidirectional screw (4). Guide rods (7) are slidably connected inside each of the two moving blocks (6). The two ends of the guide rod (7) are fixedly connected to the fixed plate (3), and the inner ends of the two moving blocks (6) are fixedly connected to the first bearing (8). The inner side wall of the inner ring of the first bearing (8) is fixedly connected to the shaft end of the crushing roller (2). The other shaft ends of the two crushing rollers (2) are fixedly connected to the driven bevel gear (9). The upper end of the crushing roller (2) near the driven bevel gear (9) is rotatably connected to the connecting plate (10). The outer end of the connecting plate (10) is fixedly connected to the mounting plate (11). 1) A second bearing (12) is fixedly connected to each of the upper and lower parts. A rotating tube (13) is fixedly connected to the inner wall of the inner ring of the second bearing (12). The rotating tube (13) passes through the mounting plate (11) and extends to the outside. A driving bevel gear (14) that meshes with the driven bevel gear (9) is fixedly connected to the rotating tube (13). A splined shaft (15) is slidably connected inside the rotating tube (13). Both ends of the splined shaft (15) are rotatably connected to the mounting plate (16). The mounting plates (16) are fixedly connected to the crushing box (1) respectively. A second motor (17) is fixedly connected to an assembly plate (16). The drive end of the second motor (17) is fixedly connected to the shaft end of the spline shaft (15). A guide post (18) is slidably connected inside the mounting plate (11). The two ends of the guide post (18) are fixedly connected to the assembly plate (16). The crushing box (1) is fixedly connected to a bottom frame (20) by a fixing rod (19). Universal wheels (21) are fixedly connected to the four corners of the lower end face of the bottom frame (20). A support mechanism (22) is provided inside the bottom frame (20).
2. The mobile slag crusher with adjustable crushing ratio according to claim 1, characterized in that, The support mechanism (22) includes a support plate (2201) fixed inside a fixed rod (19). The upper end of the support plate (2201) is symmetrical and fixedly connected to two hydraulic cylinders (2202). The driving ends of the two hydraulic cylinders (2202) pass through the support plate (2201) and are fixedly connected to a lifting plate (2203). Support columns (2204) are fixedly connected to the four corners of the lower end of the lifting plate (2203). Support feet (2205) are fixedly connected to the bottom end of the support columns (2204).
3. The mobile slag crusher with adjustable crushing ratio according to claim 1, characterized in that, The upper side of the crushing roller (2) is provided with a guide plate (23), which is fixedly connected to the crushing box (1). The guide plate (23) is designed to be inclined.
4. The mobile slag crusher with adjustable crushing ratio according to claim 1, characterized in that, The upper end face of the crushing box (1) is fixedly connected to the feed hopper (24).
5. A mobile slag crusher with adjustable crushing ratio according to claim 1, characterized in that, A control panel (25) is fixedly connected to the rear side wall of the crushing box (1), and the first motor (5) and the second motor (17) are electrically connected to the control panel (25) respectively.
6. A mobile slag crusher with adjustable crushing ratio according to claim 1, characterized in that, Two movable openings (26) matching the shaft ends of the crushing roller (2) are opened on the left and right side walls of the crushing box (1).