Deviation rectifying device of double-transmission high-pressure roller mill
By using a distance measurement component and a drive component to automatically adjust the roll gap difference in a high-pressure roller mill, the problem of inconsistent roll gaps between the fixed and moving rollers is solved, ensuring the safety of heavy-duty rolling bearings and the material crushing effect, thereby improving production efficiency and product quality.
Patent Information
- Application Number
- CN202423041296.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-10
AI Technical Summary
When the high-pressure roller mill is in operation, the difference in the roller gap between the two ends of the fixed roller and the moving roller is inconsistent, which leads to overheating and damage of the heavy rolling bearing, increased friction, and affects the crushing effect and product quality.
The first and second distance measuring components are used to measure the roll gap width in real time. The pressure at both ends of the moving roll is automatically adjusted by the controller and drive components to correct the roll gap difference, make it more consistent, reduce friction, and ensure crushing effect and product quality.
This achieves consistency in the gap width between the fixed roller and the moving roller, avoiding overheating damage to the heavy rolling bearings, and improving the material crushing effect as well as the output and product quality of the high-pressure roller mill.
Smart Images
Figure CN223655120U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to high pressure roller mill equipment technical field, concretely relates to a kind of deviation rectifying device of double drive high pressure roller mill. BACKGROUND
[0002] The frame of high pressure roller mill is equipped with two extrusion rollers rotating towards each other in parallel, and the two extrusion rollers are fixed roller and moving roller respectively, wherein the position of fixed roller is fixed, and moving roller moves on horizontal slide and is pressed against fixed roller by hydraulic system; during operation, material enters between fixed roller and moving roller, and under the extrusion of fixed roller and moving roller and the self-weight of material, the material is forced to be pushed in and compacted, and strong stress is generated in compacted material, and when the stress reaches the breaking stress of material, the material can be crushed in turn; usually, the pressure exerted on material by moving roller through hydraulic system is as high as 300MPa.
[0003] During operation of high pressure roller mill, fixed roller and moving roller are both rotated by heavy rolling bearing, and when the material entering between the two ends of fixed roller and moving roller is uneven or large pieces of material enter near one end of fixed roller and moving roller, the distance by which the nip between the two ends of fixed roller and moving roller is opened by material will not be the same, and when the difference between the nips at the two ends of fixed roller and moving roller is greater than a certain value, the angle and friction between moving roller and heavy rolling bearing will increase, causing overheating damage to heavy rolling bearing, and in severe cases, even causing the breakage of moving roller; and due to the difference in nip between the two ends of fixed roller and moving roller, more material enters the side with larger nip difference, and under the same pressure, the crushing effect on material will be poor, affecting the yield and product quality of high pressure roller mill.
[0004] Therefore, it is an urgent problem to develop and design a double drive high pressure roller mill deviation rectifying device that can automatically correct the difference in nip between the two ends of fixed roller and moving roller, without increasing the angle and friction between moving roller and heavy rolling bearing, and ensuring the crushing effect of material. SUMMARY
[0005] To solve the problems in the prior art, the utility model provides a double drive high pressure roller mill deviation rectifying device, which can measure the nip width at the two ends of fixed roller and moving roller in real time by using first distance measuring assembly and second distance measuring assembly, and when the difference in nip between the two ends of fixed roller and moving roller is too large, the controller can adjust the pressure on the two ends of moving roller by first driving assembly and second driving assembly, automatically correct the difference in nip between the two ends of fixed roller and moving roller, make the nip width between fixed roller and moving roller consistent, and ensure the crushing effect of material and the yield and product quality of high pressure roller mill, without increasing the angle and friction between moving roller and heavy rolling bearing.
[0006] To achieve the above object, the utility model adopts the technical scheme as follows:
[0007] The utility model provides a kind of deviation rectifying device of double drive high pressure roller mill, comprising:
[0008] Frame, first mobile seat and second mobile seat are equipped on the frame, the first mobile seat is connected with the first drive component that it moves, the second mobile seat is connected with the second drive component that it moves;
[0009] Fixed roller, the fixed roller is located on the frame and is located in the side of the first mobile seat and the second mobile seat, the fixed roller can rotate around its axis, the fixed roller is connected with the third drive component that it rotates;The both ends of the fixed roller are respectively equipped as first end and second end, the first mobile seat is close to the first end and can be moved along the direction close to or away from the first end, the second mobile seat is close to the second end and can be moved along the direction close to or away from the second end;
[0010] Mobile roller, the both ends of the mobile roller are respectively equipped as third end and fourth end, the third end is equipped on the first mobile seat, the fourth end is equipped on the second mobile seat, the mobile roller can rotate around its axis, the mobile roller has gap between the fixed roller, the mobile roller is connected with the fourth drive component that it rotates;
[0011] First distance measuring component and second distance measuring component, the first distance measuring component and the second distance measuring component are equipped on the frame, the first distance measuring component can measure the roll gap between the first end and the third end, the second distance measuring component can measure the roll gap between the second end and the fourth end;
[0012] Controller, the controller is connected with the first distance measuring component, the second distance measuring component, the first drive component, the second drive component, the third drive component and the fourth drive component respectively.
[0013] As a preferred technical scheme, the first mobile seat and the second mobile seat are moved along first direction, the axis of the fixed roller is perpendicular to the first direction.
[0014] As a preferred technical scheme, the first drive component is equipped as first hydraulic cylinder, the second drive component is equipped as second hydraulic cylinder.
[0015] As a preferred technical scheme, the first hydraulic cylinder and the second hydraulic cylinder are connected with the controller by hydraulic control unit.
[0016] As a preferred technical solution, the hydraulic control unit comprises a hydraulic oil pump, a first hydraulic valve, a third hydraulic valve and a sixth hydraulic valve are coupled on a hydraulic pipeline between the hydraulic oil pump and a rodless cavity of the first hydraulic cylinder, and a second hydraulic valve, a fourth hydraulic valve and a seventh hydraulic valve are coupled on a hydraulic pipeline between the hydraulic oil pump and a rodless cavity of the second hydraulic cylinder.
[0017] As a preferred technical solution, the fifth hydraulic valve is coupled on a hydraulic pipeline between the hydraulic oil pump and a rod cavity of the first hydraulic cylinder and a rod cavity of the second hydraulic cylinder, respectively.
[0018] As a preferred technical solution, the first hydraulic valve and the second hydraulic valve, the fourth hydraulic valve, the sixth hydraulic valve and the seventh hydraulic valve are all coupled with overflow valves.
[0019] As a preferred technical solution, first rolling bearings are arranged on the rack at positions corresponding to both ends of the fixed roller, and both ends of the fixed roller are arranged on the first rolling bearings.
[0020] And / or, second rolling bearings are arranged on the first moving seat and the second moving seat, and both ends of the moving roller are arranged on the second rolling bearings.
[0021] As a preferred technical solution, the third driving assembly and the fourth driving assembly are both electric motors.
[0022] And / or, the first distance measuring assembly and the second distance measuring assembly are both distance sensors.
[0023] As a preferred technical solution, the controller is a PLC.
[0024] And / or, the controller is connected with an HMI.
[0025] The beneficial effects of the utility model are as follows:
[0026] The first distance measuring assembly and the second distance measuring assembly can respectively measure the roll gap width of both ends of the fixed roller and the moving roller in real time, when the difference of the roll gap between both ends of the fixed roller and the moving roller is too large, the controller can adjust the pressure applied to both ends of the moving roller through the first driving assembly and the second driving assembly, so as to automatically correct the difference of the roll gap between both ends of the fixed roller and the moving roller, make the roll gap width between the fixed roller and the moving roller consistent, and the angle and friction force between the moving roller and the heavy rolling bearing will not increase, thereby ensuring the crushing effect of the material and the yield and product quality of the high-pressure roller mill. BRIEF DESCRIPTION OF DRAWINGS
[0027] Figure 1 It is a whole structure schematic view of one embodiment of the double transmission high pressure roller mill deviation rectifying device of the utility model;
[0028] Figure 2 It is a control logic view of the double transmission high pressure roller mill deviation rectifying device of the utility model.
[0029] In the figure: 1-fixed roller, 11-first end, 12-second end, 2-moving roller, 21-third end, 22-fourth end, 3-first hydraulic oil cylinder, 4-second hydraulic oil cylinder, 51-hydraulic oil pump, 52-excess valve. DETAILED DESCRIPTION
[0030] In order to facilitate the understanding of those skilled in the art, the utility model is further explained below in combination with the drawings.
[0031] Please refer to Figure 1 and Figure 2The utility model provides a kind of double transmission high pressure roller mill deviation rectifying device, including: rack, fixed roller 1 is located on the rack can rotate about its axis, fixed roller 1 is connected with the third drive component of driving its rotation, first mobile seat and second mobile seat are located on the rack, first mobile seat and second mobile seat are located at the side of fixed roller 1, the both ends of fixed roller 1 are respectively set as first end 11 and second end 12, first mobile seat is close to first end 11 and can be moved along the direction close to or away from first end 11, second mobile seat is close to second end 12 and can be moved along the direction close to or away from second end 12, first mobile seat is connected with the first drive component of driving its movement, second mobile seat is connected with the second drive component of driving its movement;The both ends of mobile roller 2 are respectively set as third end 21 and fourth end 22, third end 21 is located on first mobile seat, fourth end 22 is located on second mobile seat, mobile roller 2 can rotate about its axis, and there is gap between mobile roller 2 and fixed roller 1, mobile roller 2 is connected with the fourth drive component of driving its rotation;First distance measuring component and second distance measuring component are located on the rack, first distance measuring component can measure the roll gap X1 between first end 11 and third end 21 in real time, and second distance measuring component can measure the roll gap X2 between second end 12 and fourth end 22 in real time;Controller is connected with first distance measuring component, second distance measuring component, first drive component, second drive component, third drive component and fourth drive component respectively, and the roll gap information measured by first distance measuring component and second distance measuring component is calculated |X1-X2|, that is, the difference of the roll gap between the both ends of fixed roller 1 and mobile roller 2 can be obtained, when the difference is greater than set value Z, controller adjusts the output power of first drive component and second drive component correspondingly, and then adjusts the stress size at third end 21 and fourth end 22 on mobile roller 2, and makes the difference of the roll gap between the both ends of fixed roller 1 and mobile roller 2 gradually reduce.
[0032] Specifically, first mobile seat and second mobile seat are moved along first direction, and the axis of fixed roller 1 is perpendicular to first direction, so that the axis of mobile roller 2 is parallel to the axis of fixed roller 1 in initial state, to ensure that the roll gap width between fixed roller 1 and mobile roller 2 tends to be consistent;In actual use, roll gap X1 and roll gap X2 are both set to 12mm-20mm, and the pressure value output by first drive component and second drive component is 11-13Mpa.
[0033] In the embodiment, please refer to Figure 1, the first driving assembly is a first hydraulic cylinder 3, the second driving assembly is a second hydraulic cylinder 4, the first hydraulic cylinder 3 and the second hydraulic cylinder 4 are connected with a controller through a hydraulic control unit, the controller can adjust the output pressure of the first hydraulic cylinder 3 and the second hydraulic cylinder 4 respectively through the hydraulic control unit, thereby ensuring that the roll gap width between the fixed roller 1 and the moving roller 2 is always consistent.
[0034] Specifically, please refer to Figure 1 , the hydraulic control unit includes a hydraulic oil pump 51, the first hydraulic valve (YA1), the third hydraulic valve (YA3) and the sixth hydraulic valve (YA6) are coupled on the hydraulic pipeline between the hydraulic oil pump 51 and the rodless cavity of the first hydraulic cylinder 3, the second hydraulic valve (YA2), the fourth hydraulic valve (YA4) and the seventh hydraulic valve (YA7) are coupled on the hydraulic pipeline between the hydraulic oil pump 51 and the rodless cavity of the second hydraulic cylinder 4, when the fourth hydraulic valve (YA4) and the sixth hydraulic valve (YA6) are opened, the first hydraulic cylinder 3 is in a pressurized state, the second hydraulic cylinder 4 is in a pressure relief state, which can increase the pressure at the third end 21 and reduce the pressure at the fourth end 22; when the third hydraulic valve (YA3) and the seventh hydraulic valve (YA7) are opened, the first hydraulic cylinder 3 is in a pressure relief state, the second hydraulic cylinder 4 is in a pressurized state, which can reduce the pressure at the third end 21 and increase the pressure at the fourth end 22.
[0035] Further, the first hydraulic valve (YA1) is a pressurization master switch, the second hydraulic valve (YA2) is a pressure relief master switch, and the fifth hydraulic valve (YA5) is used for rapid pressure relief in emergency situations; Specifically, when the first hydraulic valve (YA1) is opened, the third hydraulic valve (YA3) is opened, the second hydraulic cylinder 4 is pressurized, the third hydraulic valve (YA3) is closed, and the second hydraulic cylinder 4 is pressure maintained; when the first hydraulic valve (YA1) is opened, the fourth hydraulic valve (YA4) is opened, the first hydraulic cylinder 3 is pressurized, the fourth hydraulic valve (YA4) is closed, and the first hydraulic cylinder 3 is pressure maintained; when the second hydraulic valve (YA2) is opened, the sixth hydraulic valve (YA6) is opened, the second hydraulic cylinder 4 is slowly pressure relieved, the sixth hydraulic valve (YA6) is closed, and the second hydraulic cylinder 4 is pressure maintained; when the second hydraulic valve (YA2) is opened, the seventh hydraulic valve (YA7) is opened, the first hydraulic cylinder 3 is slowly pressure relieved, the seventh hydraulic valve (YA7) is closed, and the first hydraulic cylinder 3 is pressure maintained.
[0036] Further, please refer to Figure 2, first pressure detection assembly and the second pressure detection assembly should be respectively provided between the first hydraulic cylinder 3 and the first moving seat and between the second hydraulic cylinder 4 and the second moving seat, the first pressure detection assembly and the second pressure detection assembly can measure the output pressure of the first hydraulic cylinder 3 to the first moving seat and the output pressure of the second hydraulic cylinder 4 to the second moving seat respectively, closing the fourth hydraulic valve (YA4) when the first hydraulic cylinder 3 is pressurized to the maximum pressure can keep the first hydraulic cylinder 3 outputting the maximum pressure, closing the seventh hydraulic valve (YA7) when the first hydraulic cylinder 3 is depressurized to the minimum pressure can keep the first hydraulic cylinder 3 outputting the minimum pressure; closing the third hydraulic valve (YA3) when the second hydraulic cylinder 4 is pressurized to the maximum pressure can keep the second hydraulic cylinder 4 outputting the maximum pressure, closing the sixth hydraulic valve (YA6) when the second hydraulic cylinder 4 is depressurized to the minimum pressure can keep the second hydraulic cylinder 4 outputting the minimum pressure.
[0037] On the basis of the foregoing embodiment, please refer to Figure 1 , the fifth hydraulic valve (YA5) is coupled to the hydraulic pipeline between the hydraulic pump 51 and the rod cavity of the first hydraulic cylinder 3 and the rod cavity of the second hydraulic cylinder 4 respectively, when the fifth hydraulic valve (YA5) is opened, the hydraulic oil in the rod cavity of the first hydraulic cylinder 3 and the rod cavity of the second hydraulic cylinder 4 can be quickly discharged, which is used for rapid pressure relief in emergency.
[0038] It should be noted that the first hydraulic valve (YA1), the second hydraulic valve (YA2), the third hydraulic valve (YA3), the fourth hydraulic valve (YA4), the fifth hydraulic valve (YA5), the sixth hydraulic valve (YA6) and the seventh hydraulic valve (YA7) are preferably electromagnetic valves.
[0039] Further, please refer to Figure 1 , the overflow valve 52 is coupled to the first hydraulic valve (YA1), the second hydraulic valve (YA2), the fourth hydraulic valve (YA4), the sixth hydraulic valve (YA6) and the seventh hydraulic valve (YA7), and the overflow valve 52 is preferably a pilot operated overflow valve, which plays a safety protection role.
[0040] It should be noted that the first rolling bearing is arranged on the rack corresponding to the position of the two ends of the fixed roller 1, and the two ends of the fixed roller 1 are arranged on the first rolling bearing, so that the fixed roller 1 can rotate smoothly around its own axis; correspondingly, the second rolling bearing is arranged on the first moving seat and the second moving seat, and the two ends of the moving roller 2 are arranged on the second rolling bearing, so that the moving roller 2 can rotate smoothly around its own axis; specifically, the first rolling bearing and the second rolling bearing are preferably heavy rolling bearings.
[0041] Further, the third driving assembly and the fourth driving assembly are preferably electric motors, which can drive the fixed roller 1 and the movable roller 2 to rotate towards each other synchronously, so as to realize compaction and crushing of the material.
[0042] Specifically, the first distance measuring assembly and the second distance measuring assembly are preferably distance sensors, and the controller is preferably a PLC, and further, the controller is connected with an HMI (Human Machine Interface), so as to realize interaction and information exchange.
[0043] The above merely provides preferred embodiments of the present application, and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A deviation correction device for a dual-drive high-pressure roller mill, characterized in that, include: A frame, wherein a first movable seat and a second movable seat are provided on the frame, the first movable seat is connected to a first driving component for driving its movement, and the second movable seat is connected to a second driving component for driving its movement. A fixed roller (1) is mounted on the frame and located on one side of the first movable seat and the second movable seat. The fixed roller (1) is rotatable about its axis. The fixed roller (1) is connected to a third drive assembly that drives its rotation. The two ends of the fixed roller (1) are respectively set as a first end (11) and a second end (12). The first movable seat is located near the first end (11) and can move in a direction close to or away from the first end (11). The second movable seat is located near the second end (12) and can move in a direction close to or away from the second end (12). The movable roller (2) has a third end (21) and a fourth end (22) at its two ends respectively. The third end (21) is located on the first movable seat, and the fourth end (22) is located on the second movable seat. The movable roller (2) can rotate around its axis. There is a gap between the movable roller (2) and the fixed roller (1). The movable roller (2) is connected to a fourth drive assembly that drives its rotation. A first distance measuring component and a second distance measuring component are both mounted on the frame. The first distance measuring component is capable of measuring the roll gap between the first end (11) and the third end (21), and the second distance measuring component is capable of measuring the roll gap between the second end (12) and the fourth end (22). The controller is connected to the first distance measurement component, the second distance measurement component, the first drive component, the second drive component, the third drive component, and the fourth drive component, respectively.
2. The alignment device for a dual-drive high-pressure roller mill according to claim 1, characterized in that, Both the first movable seat and the second movable seat move along the first direction, and the axis of the fixed roller (1) is perpendicular to the first direction.
3. The alignment device for a dual-drive high-pressure roller mill according to claim 1, characterized in that, The first drive component is configured as a first hydraulic cylinder (3), and the second drive component is configured as a second hydraulic cylinder (4).
4. The alignment device for a dual-drive high-pressure roller mill according to claim 3, characterized in that, Both the first hydraulic cylinder (3) and the second hydraulic cylinder (4) are connected to the controller via a hydraulic control unit.
5. The alignment device for a dual-drive high-pressure roller mill according to claim 4, characterized in that, The hydraulic control unit includes a hydraulic oil pump (51). A first hydraulic valve, a third hydraulic valve, and a sixth hydraulic valve are coupled to the hydraulic pipeline between the hydraulic oil pump (51) and the rodless chamber of the first hydraulic cylinder (3). A second hydraulic valve, a fourth hydraulic valve, and a seventh hydraulic valve are coupled to the hydraulic pipeline between the hydraulic oil pump (51) and the rodless chamber of the second hydraulic cylinder (4).
6. The alignment device for a dual-drive high-pressure roller mill according to claim 5, characterized in that, The hydraulic pump (51) is coupled to a fifth hydraulic valve on the hydraulic pipeline between the rod chamber of the first hydraulic cylinder (3) and the rod chamber of the second hydraulic cylinder (4).
7. The deviation correction device for a dual-drive high-pressure roller mill according to claim 5, characterized in that, An overflow valve (52) is coupled to the first hydraulic valve, the second hydraulic valve, the fourth hydraulic valve, the sixth hydraulic valve, and the seventh hydraulic valve.
8. The deviation correction device for a dual-drive high-pressure roller mill according to claim 1, characterized in that, The frame is provided with first rolling bearings at the positions corresponding to both ends of the fixed roller (1), and both ends of the fixed roller (1) are provided on the first rolling bearings; And / or, both the first movable seat and the second movable seat are provided with second rolling bearings, and both ends of the movable roller (2) are provided on the second rolling bearings.
9. The alignment device for a dual-drive high-pressure roller mill according to claim 1, characterized in that, Both the third drive component and the fourth drive component are motors; And / or, both the first distance measurement component and the second distance measurement component are configured as distance sensors.
10. A dual-drive high-pressure roller mill correction device according to claim 1, characterized in that, The controller is configured as a PLC; And / or, the controller is connected to an HMI.