Double-layer double-roller crusher
By introducing a synchronization component and adjustment mechanism into the double-layer roll crusher, the problem of inconsistent adjustment at both ends of the movable roll is solved, achieving uniform adjustment of the gap between the rolls and improving crushing efficiency and equipment stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN XIANGHAI BUILDING MATERIALS CO LTD
- Filing Date
- 2025-03-18
- Publication Date
- 2026-04-24
AI Technical Summary
In existing double-roll crushers, the adjustment amounts at both ends of the movable roll are inconsistent when adjusting the gap between the rolls, resulting in uneven gaps between the rolls, which affects the crushing quality and causes material displacement, increasing the difficulty of adjustment and calibration.
The system employs a synchronization component and an adjustment mechanism. The synchronization component ensures that both ends of the movable roller are adjusted synchronously, and the adjustment mechanism achieves synchronous adjustment of the movable roller, ensuring consistent gaps between rollers. The sliding direction is restricted by the sliding groove and sliding protrusion to prevent separation.
It improves adjustment efficiency, ensures consistent roller gaps, reduces material deviation, and enhances crushing quality and equipment stability.
Smart Images
Figure CN224156909U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of double roll crushing equipment, and specifically relates to a double-layer double roll crusher. Background Technology
[0002] In the production process of quartz stone slabs, crushing equipment is needed to crush the quartz stone raw materials into granules before they are made into slabs. The most common crushing equipment is the double roll crusher. The working principle of the double roll crusher is to crush the material entering between the two rotating crushing rolls by squeezing it.
[0003] Common double-roll crushers have only one set of double rolls. Because crushing requires consideration of crushing force and processing efficiency, raw materials cannot be crushed from large lumps into particles of the required size in a single pass. These particles often need to be re-entered into the double-roll crusher for further crushing to meet the size requirements, resulting in low crushing efficiency. To solve this problem, double-roll crushers with two sets of double rolls have emerged in this field. By integrating the two sets of double rolls into one device, materials can be rapidly subjected to secondary crushing, effectively improving crushing efficiency.
[0004] While the double-roller set offers high crushing efficiency, it also introduces additional problems. Because the particle size requirements in quartz slab production are not fixed, and raw materials often need to be crushed into particles of different sizes, the gap between the rollers in the set needs to be adjusted according to production needs. In existing equipment, adjusting the gap requires separate adjustments to both ends of the movable rollers in the set. This can easily lead to inconsistent adjustments at both ends, resulting in uneven gaps, affecting crushing quality, and causing material to tend to shift to one side of the rollers, thus accelerating wear on some roller surfaces. Therefore, additional calibration work is required during adjustment, and the two sets of rollers further increase the difficulty of adjustment and calibration. Utility Model Content
[0005] To overcome the shortcomings and problems of the existing technology, this utility model provides a double-layer double-roll crusher.
[0006] This utility model is achieved through the following technical solution:
[0007] A double-layer roll crusher includes a support frame, on which a first roll group and a second roll group are mounted, and a conveyor belt is provided between the first roll group and the second roll group. Each of the first and second roll groups includes a fixed roll and a movable roll, both of which are connected to a drive device. The fixed roll is fixedly mounted on the support frame, and the movable roll is movably connected to the support frame. Both ends of the movable roll are connected to an adjustment mechanism for adjusting the gap between the rolls. The two sets of adjustment mechanisms are arranged opposite to each other, and a synchronization component is provided between them. The first roll group and the second roll group are vertically offset, with the first roll group being horizontally higher than the second roll group. The conveyor belt is located below the first roll group, and its discharge end is located above the second roll group.
[0008] The support frame is fixedly provided with a first sliding seat and a second sliding seat. The first sliding seat and the second sliding seat are slidably connected to a first sliding plate and a second sliding plate, respectively. The two ends of the movable roller are respectively connected to the first sliding plate and the second sliding plate. The driving device connected to the movable roller is located on the second sliding plate.
[0009] Both the first sliding seat and the second sliding seat are provided with sliding grooves with a trapezoidal cross section, and the bottom surfaces of the first sliding plate and the second sliding plate are provided with sliding protrusions that match the sliding grooves.
[0010] The adjusting mechanism includes an extrusion member, one end of which has an extrusion groove inclined to one side, and the other end is connected to an adjusting screw. The two side walls of the extrusion groove are arranged parallel to each other. The ends of the first sliding plate and the second sliding plate are both provided with connecting parts. The bottom surface of the connecting part is provided with a connecting protrusion that mates with the extrusion groove. The adjusting screw is connected to an axial fixing component. When the adjusting screw rotates, it drives the extrusion member to move axially along the adjusting screw. A stop block is slidably connected to one side of the extrusion member. The stop block is fixedly connected to the support frame.
[0011] One side of the abutment block is provided with a hooking groove, and the hooking groove is arranged parallel to the adjusting screw. One side of the extrusion member is connected to the hooking groove.
[0012] The axial fixing assembly includes a fixed seat fixedly connected to the support frame and a cover block connected to the fixed seat. The adjusting screw is provided with a rotating convex ring. A rotating groove is provided between the fixed seat and the cover block. The rotating groove includes two small-diameter sections that match the adjusting screw, and a large-diameter section that cooperates with the rotating convex ring is provided between the two small-diameter sections.
[0013] The synchronization component includes a rotating column consisting of two components. The rotating column has a hexagonal structure, and its two ends are fixedly connected to the ends of two adjusting screws, respectively.
[0014] Both ends of the rotating column are provided with engagement grooves, and the end of the adjusting screw is an engagement part that matches the engagement grooves.
[0015] The bolts pass through the two components of the screw-in column and the locking part to combine the two components, and the locking part is fixedly connected to the locking groove.
[0016] The driving device is a drive motor.
[0017] In this invention, both ends of the movable roller are connected to adjusting mechanisms for adjusting the gap between the rollers. Two sets of adjusting mechanisms are arranged opposite to each other, and a synchronization component is provided between the two sets of adjusting mechanisms. The synchronization component allows both sets of adjusting mechanisms to work simultaneously, enabling the two ends of the movable roller to be adjusted synchronously, improving adjustment efficiency while ensuring consistent adjustment amounts at both ends of the movable roller.
[0018] The synchronization component in this invention consists of two parts. When it is not necessary to synchronize the two ends of the movable roller, the two parts can be directly disassembled, so that the two sets of adjustment mechanisms can be adjusted independently, which facilitates the calibration and installation of the two sets of adjustment mechanisms. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0020] Figure 2 This is a schematic diagram of the first pair of rollers of this utility model;
[0021] Figure 3 This is a schematic diagram of the second pair of rollers of this utility model;
[0022] Figure 4 This is a schematic diagram of the adjustment mechanism structure of this utility model;
[0023] Figure 5 This is a schematic diagram of the structure of the first and second sliding plates of this utility model;
[0024] Figure 6 This is a schematic diagram of the first sliding seat structure of this utility model;
[0025] Figure 7 This is a schematic diagram of the second sliding seat structure of this utility model;
[0026] Figure 8 This is a schematic diagram of the block structure of this utility model.
[0027] In the diagram: 100-Support frame, 101-First sliding seat, 102-Second sliding seat, 103-First sliding plate, 104-Second sliding plate, 105-Sliding groove, 106-Sliding protrusion, 107-Connecting part, 108-Connecting protrusion, 200-First roller group, 210-Second roller group, 211-Fixed roller, 212-Modible roller, 213-Drive device, 300-Adjusting mechanism, 31 0-Extrusion part, 311-Extrusion groove, 320-Adjusting screw, 321-Rotating convex ring, 322-Engaging part, 330-Axial fixing assembly, 331-Fixing seat, 332-Cover block, 333-Rotating groove, 334-Large diameter section, 335-Small diameter section, 340-Abutting block, 341-Hooking slide, 350-Synchronization assembly, 351-Turning column, 352-Engaging groove, 400-Conveyor belt. Detailed Implementation
[0028] To facilitate understanding by those skilled in the art, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0029] like Figure 1 As shown, a double-layer roller crusher includes a support frame 100, on which a first roller group 200 and a second roller group 210 are mounted. A conveyor belt 400 is positioned between the first roller group 200 and the second roller group 210. The first roller group 200 and the second roller group 210 are vertically offset, with the first roller group 200 being horizontally higher than the second roller group 210. The conveyor belt 400 is located below the first roller group 200, and its discharge end is located above the second roller group 210. During crushing, the material is first crushed between the rollers of the first roller group 200. The crushed material falls onto the conveyor belt 400 and is then conveyed by the conveyor belt 400 to the rollers of the second roller group 210 for secondary crushing. The entire process can be carried out continuously. Both the first pair of rollers 200 and the second pair of rollers 210 include a fixed roller 211 and a movable roller 212. Adjusting the position of the movable roller 212 changes the gap between the rollers, thereby crushing the material into the required particle size. Both the fixed roller 211 and the movable roller 212 are connected to a drive device 213, which is a geared motor. The geared motor drives the fixed roller 211 and the movable roller 212 to rotate in opposite directions, thus crushing the material.
[0030] like Figure 2-3As shown in Figures 5-7, the fixed roller 211 is fixedly mounted on the support frame 100, and the movable roller 212 is movably connected to the support frame 100. A first sliding seat 101 and a second sliding seat 102 are fixedly mounted on the support frame 100. A first sliding plate 103 and a second sliding plate 104 are slidably connected to the first sliding seat 101 and the second sliding seat 102, respectively. Both the first sliding seat 101 and the second sliding seat 102 have trapezoidal sliding grooves 105. The bottom surfaces of both the first sliding plate 103 and the second sliding plate 104 have sliding protrusions 106 that match the sliding grooves 105. The two ends of the movable roller 212 are connected to the first sliding plate 103 and the second sliding plate 104, respectively. The driving device 213 connected to the movable roller 212 is located on the second sliding plate 104. The first sliding plate 103 and the second sliding plate 104 can slide on the first sliding seat 101 and the second sliding seat 102, respectively, thereby displacing the two ends of the movable roller 212, facilitating subsequent roller gap adjustment. The sliding groove 105 and the sliding protrusion 106 can restrict the sliding direction of the first sliding plate 103 and the second sliding plate 104, and at the same time prevent the first sliding plate 103 and the second sliding plate 104 from detaching upward from the sliding groove 105, thereby improving the stability of the equipment during crushing.
[0031] like Figure 2-7 As shown, both ends of the movable roller 212 are connected to an adjustment mechanism 300 for adjusting the gap between the rollers. The two sets of adjustment mechanisms 300 are arranged opposite to each other. Each adjustment mechanism 300 includes an extrusion member 310. One end of the extrusion member 310 is provided with an extrusion groove 311 that is inclined to one side of the extrusion member 310, and the other end is connected to an adjustment screw 320. The two side walls inside the extrusion groove 311 are arranged parallel to each other. The ends of the first sliding plate 103 and the second sliding plate 104 are provided with a connecting part 107. The bottom surface of the connecting part 107 is provided with a connecting protrusion 108 that cooperates with the extrusion groove 311. The extrusion member 310 is perpendicular to the connecting part 107. Since the first sliding plate 103 and the second sliding plate 104 are both restricted by the sliding groove 105, they can only move along the direction of the sliding groove 105. When the adjusting screw 320 drives the extrusion member 310 to move along the axial direction of the adjusting screw 320, the extrusion groove 311 will squeeze the connecting protrusion 108 and apply a force to the connecting protrusion 108 to move along the direction of the sliding groove 105. The connecting protrusion 108 then drives the first sliding plate 103 and the second sliding plate 104 to slide along the sliding groove 105 through the connecting part 107, thereby achieving the purpose of adjusting the gap between the rollers.
[0032] like Figure 4-8As shown, the adjusting screw 320 is connected to an axial fixing assembly 330. The axial fixing assembly 330 includes a fixing seat 331 fixedly connected to the support frame 100 and a cover block 332 connected to the fixing seat 331. The adjusting screw 320 is provided with a rotating protruding ring 321. A rotating groove 333 is provided between the fixing seat 331 and the cover block 332. The rotating groove 333 includes two small-diameter sections 335 that match the adjusting screw 320, and a large-diameter section 334 that cooperates with the rotating protruding ring 321 is provided between the two small-diameter sections 335. The fixing seat 331 is used to support the adjusting screw 320 and prevent the adjusting screw 320 from moving axially, ensuring the normal use of the adjusting mechanism 300. When the adjusting screw 320 rotates, it drives the extruder 310 to move axially along the adjusting screw 320. A stop block 340 is slidably connected to one side of the extruder 310. The stop block 340 is fixedly connected to the support frame 100. A hook groove 341 is provided on one side of the stop block 340. One side of the extruder 310 cooperates with the hook groove 341. The hook groove 341 can limit the displacement direction of the extruder 310. The hook groove 341 is parallel to the adjusting screw 320, so that the extruder 310 can only move axially along the adjusting screw 320. During crushing, the movable roller 212 is subjected to a force away from the fixed roller 211. In order to prevent the first sliding plate 103 and the second sliding plate 104 from detaching from the first sliding seat 101 and the second sliding seat 102, the ends of the first sliding plate 103 and the second sliding plate 104 need to be blocked. The block 340 can block the extrusion member 310, and thus the extrusion member 310 blocks the first sliding plate 103 and the second sliding plate 104.
[0033] like Figure 2-4A synchronization component 350 is provided between the two sets of adjustment mechanisms 300 shown. The synchronization component 350 includes a turning column 351 composed of two components. The turning column 351 has a hexagonal structure, which facilitates turning by the operator using tools such as wrenches. The two ends of the turning column 351 are fixedly connected to the ends of two adjusting screws 320, respectively. When the operator drives the turning column 351 to rotate, the turning column 351 can simultaneously drive the two adjusting screws 320 to rotate, ensuring that the displacement at both ends of the movable roller 212 is consistent, thereby stably adjusting the gap between the rollers. Both ends of the rotating column 351 are provided with engaging grooves 352. The end of the adjusting screw 320 is an engaging part 322 that matches the engaging grooves 352. The bolt passes through the two components of the rotating column 351 and the engaging part 322 to combine the two components and fix the engaging part 322 to the engaging groove 352. This connection method can ensure the stability of the connection between the rotating column 351 and the adjusting screw 320. At the same time, the engaging part 322 is hexagonal nut-shaped. When it is necessary to adjust a set of adjustment mechanisms 300, the rotating column 351 can be disassembled and the engaging part 322 can be used to realize the independent adjustment of the adjustment mechanism, improving the flexibility of use.
[0034] The above embodiments are preferred implementations of this utility model and are not intended to limit this utility model. Any obvious substitutions are within the protection scope of this utility model without departing from its inventive concept.
Claims
1. A double-layer roll crusher, comprising a support frame (100), characterized in that: The support frame (100) is provided with a first pair of rollers (200) and a second pair of rollers (210), and a conveyor belt (400) is provided between the first pair of rollers (200) and the second pair of rollers (210); each of the first pair of rollers (200) and the second pair of rollers (210) includes a fixed roller (211) and a movable roller (212), and both the fixed roller (211) and the movable roller (212) are connected to a driving device (213); the fixed roller (211) is fixedly installed on the support frame (100), and the movable roller (212) is movably connected to the support frame (100). Both ends of the movable roller (212) are connected to adjustment mechanisms (300) for adjusting the gap between the rollers. The two sets of adjustment mechanisms (300) are arranged opposite to each other, and a synchronization component (350) is provided between the two sets of adjustment mechanisms (300). The first roller group (200) and the second roller group (210) are staggered in the vertical direction, and the first roller group (200) is higher than the second roller group (210) in the horizontal height. The conveyor belt (400) is located below the first roller group (200), and the discharge end of the conveyor belt (400) is located above the second roller group (210).
2. A double-layer roll crusher according to claim 1, characterized in that: The support frame (100) is fixedly provided with a first sliding seat (101) and a second sliding seat (102). The first sliding seat (101) and the second sliding seat (102) are slidably connected to a first sliding plate (103) and a second sliding plate (104). The two ends of the movable roller (212) are connected to the first sliding plate (103) and the second sliding plate (104) respectively. The driving device (213) connected to the movable roller (212) is located on the second sliding plate (104).
3. A double-layer roller crusher according to claim 2, characterized in that: The first sliding seat (101) and the second sliding seat (102) are each provided with a sliding groove (105) with a trapezoidal cross section, and the bottom surface of the first sliding plate (103) and the second sliding plate (104) are each provided with a sliding protrusion (106) that matches the sliding groove (105).
4. A double-layer roll crusher according to claim 3, characterized in that: The adjustment mechanism (300) includes an extrusion member (310), one end of which has an extrusion groove (311) inclined to one side of the extrusion member (310), and the other end is connected to an adjusting screw (320); the two side walls inside the extrusion groove (311) are arranged in parallel, and the ends of the first sliding plate (103) and the second sliding plate (104) are both provided with connecting parts (107), and the bottom surface of the connecting part (107) is provided with a connecting protrusion (108) that cooperates with the extrusion groove (311); the adjusting screw (320) is connected to an axial fixing component (330), and when the adjusting screw (320) rotates, it drives the extrusion member (310) to move axially along the adjusting screw (320); a stop block (340) is slidably connected to one side of the extrusion member (310), and the stop block (340) is fixedly connected to the support frame (100).
5. A double-layer roll crusher according to claim 4, characterized in that: The abutment (340) has a hook groove (341) on one side, and the hook groove (341) is arranged parallel to the adjusting screw (320). One side of the extrusion member (310) is connected to the hook groove (341).
6. A double-layer roll crusher according to claim 4, characterized in that: The axial fixing assembly (330) includes a fixing seat (331) fixedly connected to the support frame (100) and a cover block (332) connected to the fixing seat (331). The adjusting screw (320) is provided with a rotating convex ring (321). A rotating groove (333) is provided between the fixing seat (331) and the cover block (332). The rotating groove (333) includes two small diameter sections (335) that match the adjusting screw (320). A large diameter section (334) that cooperates with the rotating convex ring (321) is provided between the two small diameter sections (335).
7. A double-layer roll crusher according to claim 5, characterized in that: The synchronization component (350) includes a rotating column (351) consisting of two components. The rotating column (351) has a hexagonal structure, and its two ends are fixedly connected to the ends of two adjusting screws (320).
8. A double-layer roll crusher according to claim 7, characterized in that: Both ends of the rotating column (351) are provided with engagement grooves (352), and the end of the adjusting screw (320) is an engagement part (322) that matches the engagement grooves (352).
9. A double-layer roll crusher according to claim 8, characterized in that: The bolt passes through the two components of the screwing column (351) and the engaging part (322) to combine the two components and fix the engaging part (322) to the engaging groove (352).
10. A double-layer roll crusher according to any one of claims 1-8, characterized in that: The driving device (213) is a drive motor.