A type of roller press buffer sheet
By installing a buffer assembly in the roller press, the problem of interference pressure not being eliminated in time was solved, thus achieving stable operation and safety protection of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 遵义海螺盘江水泥有限责任公司
- Filing Date
- 2025-07-22
- Publication Date
- 2026-06-30
AI Technical Summary
If the interference pressure is not eliminated in time during the operation of the roller press, the roller bearings and frame will be impacted, causing the equipment to be unbalanced, frequently stop, or even be damaged.
A buffer assembly, including a fixed boss, a movable boss, and a suspended buffer plate, is installed between the stationary roll and the moving roll. The buffer plate absorbs the interference pressure that is not consumed in time, relieves the pressure on the roll bearings and the frame, and reduces the risk of equipment shutdown.
It effectively absorbs interference pressure, reduces the risk of equipment shutdown, protects equipment operation safety, and extends equipment service life.
Smart Images
Figure CN224422997U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of roller press technology, and specifically relates to a roller press buffer sheet. Background Technology
[0002] Roller presses are widely used grinding equipment in industries such as cement, mining, and metallurgy. Their core working principle is to crush materials under high pressure by two opposing rotating extrusion rollers. During the operation of the roller press, the adjustment of the gap between the fixed roller and the moving roller is crucial, which is usually accomplished by a hydraulic system.
[0003] The force transmission process during the operation of a roller press is as follows: hydraulic cylinder - movable roller - material cake - fixed roller - fixed bearing seat. In practical applications, problems such as high material hardness, excessively large or small particle size, and poor material flowability can affect the normal operation of the roller press and lead to interference pressure. During the entire operation, the interference force is mainly consumed by the roller bearings and frame. If this pressure is not consumed in time, it will impact key components such as roller bearings and frame, causing the roller press to operate in an unbalanced state, resulting in large deviations in the running roller gap, frequent shutdowns, and in severe cases, even equipment damage. Utility Model Content
[0004] To address the above problems, the purpose of this utility model is to provide a buffer sheet for a roller press, which solves the problem mentioned in the background art that interference pressure cannot be eliminated in time during the operation of the roller press.
[0005] This utility model provides a buffer plate for a roller press, including a fixed roller installed in the frame, a movable roller that cooperates with the fixed roller to crush materials, and a hydraulic system connected to the movable roller for adjusting the gap between the fixed roller and the movable roller. A buffer assembly is installed between the fixed roller and the movable roller. The buffer assembly includes a fixed boss fixedly installed on the fixed roller, a movable boss fixedly installed on the movable roller and cooperating with the fixed boss, and a limiting rod fixedly connected to the side of the fixed boss near the movable boss and with the buffer plate suspended on its outer side. During the operation of the roller press, the movable boss reciprocates horizontally under the combined action of the hydraulic system and the force of the material layer between the roller press rollers. When it moves towards the fixed roller, the interference pressure that the material layer fails to consume in time will be transmitted to the buffer plate.
[0006] Preferably, the buffer sheet is cut to form three buffer sections and a connecting section. The buffer sections are a first narrow iron sheet, a second narrow iron sheet, and a third narrow iron sheet, and the connecting section is used to connect the first narrow iron sheet, the second narrow iron sheet, and the third narrow iron sheet together.
[0007] Preferably, the overall thickness of the buffer sheet is 1-3 mm.
[0008] Preferably, the widths of the first narrow iron sheet, the second narrow iron sheet, and the third narrow iron sheet are 5mm, 8mm, and 5mm, respectively.
[0009] Preferably, both the first narrow iron sheet and the second narrow iron sheet are provided with hanging holes, and the edges of the hanging holes are provided with limiting grooves. The outer wall of the limiting rod is provided with limiting protrusions that are adapted to the limiting grooves. With the cooperation of the limiting protrusions and the limiting grooves, the buffer sheet can be tilted and suspended on the limiting rod to increase the contact area between the buffer sheet and the fixed boss and the movable boss.
[0010] Preferably, the number of the limiting groove and the limiting protrusion is set to at least one set.
[0011] The beneficial effects of this utility model are: by installing a buffer assembly between the fixed roller and the moving roller, the interference pressure that the material layer fails to consume in time is effectively absorbed during the operation of the roller press, the stress leakage of the roller bearings and frame is relieved, the risk of operation stoppage is reduced, and the safety of equipment operation is protected. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 This is a first cross-sectional view of the present invention.
[0014] Figure 3 This is a second cross-sectional view of the present invention.
[0015] Figure 4 This is an enlarged structural diagram of point A in this utility model;
[0016] Figure 5 This is a third cross-sectional view of the present invention.
[0017] Figure 6 This is a schematic diagram of the working state structure of the buffer component in this utility model.
[0018] In the diagram: 1. Frame; 2. Fixed roller; 3. Moving roller; 4. Hydraulic system; 5. Fixed boss; 6. Moving boss; 7. Buffer plate; 8. Limiting rod; 9. Buffer part; 10. Connecting part; 11. First narrow iron plate; 12. Second narrow iron plate; 13. Third narrow iron plate; 14. Hanging hole; 15. Limiting groove; 16. Limiting protrusion. Detailed Implementation
[0019] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.
[0020] This utility model discloses a buffer plate for a roller press, which mainly includes a fixed roller 2 installed in the frame 1, a movable roller 3 that cooperates with the fixed roller 2 to crush materials, and a hydraulic system 4 connected to the movable roller 3 for adjusting the gap between the fixed roller 2 and the movable roller 3. It also includes a transmission system (not shown in the figure) for driving the movable roller 3 and the fixed roller 2 to rotate synchronously. During use, the distance between the movable roller 3 and the fixed roller 2 is adjusted by the hydraulic system 4. When the material goes down between the movable roller 3 and the fixed roller 2 along the feed inlet, the material is forced to move downward as the movable roller 3 and the fixed roller 2 rotate and is subjected to gradually increasing extrusion pressure. When the extrusion pressure reaches a sufficiently large value, the material is crushed into a dense cake. The crushed dense cake is discharged from the bottom of the roller press and enters the next process. The above is an introduction to a buffer plate for a roller press.
[0021] As can be seen from the above, the existing roller press buffer plate has the following defects when in use. The force transmission process during the operation of the roller press is: hydraulic cylinder - movable roller - material cake - fixed roller 2 - fixed bearing seat frame 1. In practical applications, problems such as high material hardness, excessively large or small particle size, and poor material flowability may affect the normal operation of the roller press and lead to the generation of interference pressure. During the entire operation, the interference force is mainly consumed by the roller bearing and frame 1. If this pressure is not consumed in time, it will impact key components such as the roller bearing and frame 1, causing the roller press to operate in an unbalanced state, resulting in large deviation of the running roller gap, frequent stoppages, and even equipment damage in severe cases. Based on the above problems, this utility model adopts the following improvement method to solve them.
[0022] like Figure 1-6 As shown, a roller press buffer includes a fixed roller 2 installed in a frame 1, a movable roller 3 cooperating with the fixed roller 2 to crush materials, and a hydraulic system 4 connected to the movable roller 3 for adjusting the gap between the fixed roller 2 and the movable roller 3. A buffer assembly is installed between the fixed roller 2 and the movable roller 3. The buffer assembly includes a fixed boss 5 fixedly installed on the fixed roller 2, a movable boss 6 fixedly installed on the movable roller 3 and cooperating with the fixed boss 5, and a limiting rod 8 fixedly connected to the side of the fixed boss 5 near the movable boss 6, with a buffer plate 7 suspended on its outer side. During the operation of the roller press, the movable boss 6 reciprocates horizontally under the combined action of the hydraulic system 4 and the force of the material layer between the roller press rollers. When it moves towards the fixed roller 2, as... Figure 2 As shown, the limiting rod 8 is slidably connected to the movable boss 6 to prevent the buffer plate 7 from slipping off the limiting rod 8. The interference pressure that the material layer fails to consume in time will be transmitted to the buffer plate 7, which will alleviate the stress on the roller bearing and the frame 1, reduce the risk of running out of power, and protect the safe operation of the equipment.
[0023] Furthermore, such as Figure 2-4As shown, the buffer plate 7 is formed by cutting into three buffer parts 9 and a connecting part 10. The buffer parts 9 are a first narrow iron sheet 11, a second narrow iron sheet 12, and a third narrow iron sheet 13. The connecting part 10 is used to connect the first narrow iron sheet 11, the second narrow iron sheet 12, and the third narrow iron sheet 13 together. The original structure of the buffer plate 7 is a whole rectangular or square iron plate. After cutting, it forms three narrow iron sheets. When subjected to external impact or pressure, the whole buffer plate 7 may be deformed or damaged locally due to stress concentration. However, after cutting the buffer plate 7 into three narrow iron sheets, the stress can be more evenly distributed to each iron sheet, thereby reducing the risk of any iron sheet being damaged due to excessive stress. The design of the three narrow iron sheets is carefully calculated (based on manufacturing and cost, space, weight, etc.) to ensure that stress can be optimally distributed and energy absorbed when subjected to impact. Too many iron sheets (such as 6 pieces) may lead to uneven stress distribution, while too few iron sheets (such as 2 pieces or less) may not provide sufficient buffering effect.
[0024] Furthermore, such as Figure 2-4 As shown, the overall thickness of the buffer sheet 7 is 1-3mm. The buffer sheet 7 is made of scrap iron plate to reduce costs. In this embodiment, a buffer sheet 7 with a thickness of 2mm is preferred. While ensuring the strength of the material, it provides sufficient elastic deformation to absorb and disperse interference pressure. If the buffer sheet 7 is too thin, it may be insufficient in strength and unable to effectively withstand and disperse pressure. If it is too thick, it may increase the weight and cost of the equipment, and it is also not conducive to the efficient absorption of energy.
[0025] Furthermore, such as Figure 2-4 As shown, the widths of the first narrow iron sheet 11, the second narrow iron sheet 12, and the third narrow iron sheet 13 are 5mm, 8mm, and 5mm, respectively, which can effectively release instantaneous stress and better enhance the buffering performance.
[0026] Furthermore, such as Figure 2-4 As shown, the first narrow iron sheet 11 and the second narrow iron sheet 12 are both provided with hanging holes 14. The edge of the hanging hole 14 is provided with a limiting groove 15. The outer wall of the limiting rod 8 is provided with a limiting protrusion 16 that matches the limiting groove 15. As shown in the figure, the first narrow iron sheet 11, the second narrow iron sheet 12 and the third narrow iron sheet 13 are square. The hanging hole 14 is located at the corner of the first narrow iron sheet 11 and the second narrow iron sheet 12. When the buffer plate 7 is inserted into the limiting rod 8 through any hanging hole 14, the buffer plate 7 will tilt at a certain angle with the hanging hole 14 as the vertical center. The limiting protrusion 16 added to the limiting rod 8 can limit the buffer plate 7. During the operation of the roller press, the tilt angle of the buffer plate 7 can be maintained to increase the contact area between the buffer plate 7 and the fixed boss 5 and the movable boss 6, thereby strengthening the buffering effect of the buffer plate 7.
[0027] Furthermore, such as Figure 3-4 As shown, the number of the limiting groove 15 and the limiting protrusion 16 is at least one set. By setting one or more sets of limiting protrusions 16 and limiting grooves 15, the stability of the buffer sheet 7 can be further improved, and the buffer sheet 7 can be prevented from deflecting under the vibration during the operation of the roller press.
Claims
1. A roll press buffer sheet comprising a fixed roll (2) installed in a frame (1), a moving roll (3) cooperating with the fixed roll (2) to crush a material, and a hydraulic system (4) connected to the moving roll (3) and used to adjust a nip between the fixed roll (2) and the moving roll (3), characterized in that: A buffer assembly is installed between the fixed roller (2) and the moving roller (3). The buffer assembly includes a fixed boss (5) fixedly installed on the fixed roller (2), a moving boss (6) fixedly installed on the moving roller (3) and cooperating with the fixed boss (5), and a limiting rod (8) fixedly connected to the side of the fixed boss (5) near the moving boss (6) and with a buffer plate (7) suspended on its outer side. During the operation of the roller press, the moving boss (6) moves horizontally under the combined action of the hydraulic system (4) and the material layer between the roller press rollers. When it moves towards the fixed roller (2), the interference pressure that the material layer fails to consume in time will be transmitted to the buffer plate (7).
2. A roll press cushioning sheet according to claim 1, characterized by: The buffer sheet (7) is cut to form three buffer parts (9) and connecting parts (10). The buffer parts (9) are respectively the first narrow iron sheet (11), the second narrow iron sheet (12) and the third narrow iron sheet (13). The connecting parts (10) are used to connect the first narrow iron sheet (11), the second narrow iron sheet (12) and the third narrow iron sheet (13) together.
3. A roll press cushioning sheet according to claim 2, wherein: The overall thickness of the buffer sheet (7) is 1-3 mm.
4. A roll press cushioning sheet according to claim 3, characterized by: The widths of the first narrow iron sheet (11), the second narrow iron sheet (12), and the third narrow iron sheet (13) are 5mm, 8mm, and 5mm, respectively.
5. A roll press cushioning sheet according to claim 4, wherein: Hanging holes (14) are provided on the first narrow iron sheet (11) and the second narrow iron sheet (12). A limiting groove (15) is provided at the edge of the hanging hole (14). A limiting protrusion (16) adapted to the limiting groove (15) is provided on the outer wall of the limiting rod (8). With the cooperation of the limiting protrusion (16) and the limiting groove (15), the buffer sheet (7) can be tilted and suspended on the limiting rod (8) to increase the contact area between the buffer sheet (7) and the fixed boss (5) and the movable boss (6).
6. A buffer sheet for a roller press according to claim 5, characterized in that: The number of the limiting groove (15) and the limiting protrusion (16) is set to at least one set.