Electric lifting mechanism of vibrating screen with feedback adjustment

Abstract

This invention discloses an electric lifting mechanism for a vibrating screen with feedback adjustment, belonging to the field of vibrating screen technology. A servo motor drives a worm gear and a turbine shaft to rotate, thereby raising and lowering the lifting screw and damping spring mounting base, which in turn adjusts the tilt angle of the vibrating screen box. The control system controls the rotation of the servo motor to drive the lifting screw, thus controlling the raising and lowering of the vibrating screen box. In addition to the servo motor rotation, a displacement sensor monitors the real-time height of the damping spring mounting base, enabling the lifting mechanism's position monitoring. The control system uses preset stroke values ​​to calibrate and control the lifting mechanism's position, ensuring that the lifting mechanism performs raising and lowering movements within the adjustable stroke range of the vibrating screen box.

Description

Technical Field

[0001] This invention belongs to the field of vibrating screen technology, specifically relating to an electric lifting mechanism for a vibrating screen with feedback adjustment. Background Technology

[0002] Drilling fluid is a general term for various circulating fluids that perform multiple functions to meet the needs of drilling operations. Drilling fluid is the lifeblood of drilling, but its purchase cost is usually quite high. Therefore, it needs to be purified.

[0003] The vibrating screen is the first-stage purification equipment in a drilling fluid purification system. Its main function is to separate large solid particles from the drilling fluid. The separated drilling fluid then enters the next stage of solids control equipment for further solids separation. The drilling fluid purified by the solids control system can be recycled, thereby reducing drilling costs.

[0004] During operation, the screen box tilt angle needs to be adjusted via a lifting mechanism to achieve the optimal working state of the vibrating screen. Currently, the lifting mechanism of vibrating screens is mostly adjusted manually, which is time-consuming and labor-intensive. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention provides an electric lifting mechanism for a vibrating screen with feedback adjustment. A servo motor drives the worm shaft and worm gear to rotate, thereby raising and lowering the lifting screw and damping spring mounting base, which in turn adjusts the tilt angle of the vibrating screen box. The control system controls the rotation of the servo motor to drive the lifting screw, thus controlling the raising and lowering of the vibrating screen box. In addition to the servo motor's rotation, a displacement sensor monitors the real-time height of the damping spring mounting base, enabling the lifting mechanism's position monitoring. The control system uses preset stroke values ​​to calibrate and control the lifting mechanism's position, ensuring that the lifting mechanism performs raising and lowering movements within the adjustable stroke range of the vibrating screen box.

[0006] The objective of this invention is achieved through the following technical solution: An electric lifting mechanism for a vibrating screen with feedback adjustment includes a servo motor, a servo controller, and a control system. The output end of the servo motor is connected to a worm gear, the worm gear is connected to a turbine shaft, and the turbine shaft is connected to a lifting screw. A damping spring mounting seat is fixedly installed at the upper end of the lifting screw. A displacement sensor is installed on the damping spring mounting seat. The displacement sensor is used to detect the height of the damping spring mounting seat in real time and transmit the height information to the control system. The control system controls the servo controller to stop or start the servo motor.

[0007] Preferably, the output end of the servo motor is connected to the worm gear via a coupling.

[0008] Preferably, a hand crank is fixedly provided at the end of the worm gear away from the coupling.

[0009] Preferably, it also includes a housing, one end of which passes through the housing, and the middle part of the worm is connected to the turbine shaft.

[0010] Preferably, both ends of the worm are connected to the housing via worm bearings.

[0011] Preferably, both ends of the turbine shaft are connected to the housing via turbine shaft bearings.

[0012] Preferably, the lifting screw is located in the middle of the turbine shaft.

[0013] Preferably, the upper and lower sides of the outer casing are provided with through holes that match the lifting screw.

[0014] Preferably, it also includes a sliding sleeve assembly, which includes a first sliding sleeve and a second sliding sleeve. The lower end of the first sliding sleeve is fixedly connected to the upper end of the mounting box, the upper end of the first sliding sleeve is slidably disposed inside the second sliding sleeve, and the upper end of the second sliding sleeve is fixedly connected to the lower end of the vibration damping spring mounting seat.

[0015] Preferably, the system further includes a sliding sleeve assembly, which includes a first sliding sleeve and a second sliding sleeve. The lower end of the first sliding sleeve is fixedly connected to the upper end of the mounting box, the upper end of the first sliding sleeve is slidably disposed outside the second sliding sleeve, and the upper end of the second sliding sleeve is fixedly connected to the lower end of the vibration damping spring mounting seat.

[0016] Preferably, the sliding sleeve assembly is a cuboid or a cylinder.

[0017] Preferably, the vibration damping spring mounting base includes a mounting base plate and a mounting seat that matches the vibrating screen. The mounting seat is disposed above the mounting base plate, and the lower end of the mounting seat is fixedly connected to the upper end of the lifting screw.

[0018] The beneficial effects of this technical solution are as follows: I. This invention provides an electric lifting mechanism for a vibrating screen with feedback adjustment. A servo motor drives a worm gear and a turbine shaft to rotate, thereby raising and lowering the lifting screw and damping spring mounting base, which in turn adjusts the tilt angle of the vibrating screen box. The control system controls the rotation of the servo motor to drive the lifting screw, thus controlling the raising and lowering of the vibrating screen box. Relying on the rotation of the servo motor, a displacement sensor is added to monitor the position of the lifting mechanism by real-time reading of the height of the damping spring mounting base. The control system uses preset stroke values ​​to calibrate and control the position of the lifting mechanism, ensuring that the lifting mechanism performs raising and lowering movements within the adjustable stroke range of the vibrating screen box.

[0019] II. The present invention provides an electric lifting mechanism for a vibrating screen with feedback adjustment. The hand crank allows manual adjustment of the lifting height of the damping spring mounting base after the servo motor loses power.

[0020] Third, the electric lifting mechanism for a vibrating screen with feedback adjustment provided by the present invention has a housing design that prevents impurities from entering the turbine shaft and worm gear, making the electric lifting mechanism for the vibrating screen operate more smoothly.

[0021] IV. The present invention provides an electric lifting mechanism for a vibrating screen with feedback adjustment. The sliding sleeve assembly prevents impurities from entering the turbine shaft and worm gear, making the electric lifting mechanism for the vibrating screen operate more smoothly. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 for Figure 2 Sectional view at point AA; The components include: 1. Servo motor; 2. Servo controller; 3. Control system; 4. Worm gear; 5. Turbine shaft; 6. Lifting screw; 7. Vibration damping spring mounting base; 8. Displacement sensor; 9. Coupling; 10. Hand crank; 11. Housing; 12. Worm gear bearing; 13. Turbine shaft bearing; 14. Sliding sleeve assembly; 141. First sliding sleeve; 142. Second sliding sleeve. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to embodiments, but the implementation of the present invention is not limited thereto.

[0024] In Examples 1-5, the servo motor 1, servo controller 2, control system 3, and displacement sensor 8 are all existing technologies and will not be described in detail here. Requirements for servo motor 1: It must have precise position control; be able to read the number of rotations; have fast response and speed control; have torque control function, controlling the magnitude and direction of the output torque, and also have over-torque inclusion function. Requirements for control system 3: The electric lifting mechanism can be raised or lowered via buttons on control system 3; the angle of the screen box can be displayed (the lifting height can be calculated by the number of rotations and pitch of servo motor 1, and then the angle value can be calculated); the lowest and highest positions of the electric lifting mechanism can be set. The position feedback from displacement sensor 8 determines whether the electric lifting mechanism has overtraveled. If overtravel occurs, it immediately stops and returns to the preset position. After the vibrating screen is turned off, the electric lifting mechanism is moved to the preset position and stopped according to a preset program.

[0025] Example 1 like Figures 1-3As shown, an electric lifting mechanism for a vibrating screen with feedback adjustment includes a servo motor 1, a servo controller 2, and a control system 3. The output end of the servo motor 1 is connected to a worm gear 4, the worm gear 4 is connected to a turbine shaft 5, and the turbine shaft 5 is connected to a lifting screw 6. A damping spring mounting seat 7 is fixedly installed on the upper end of the lifting screw 6. A displacement sensor 8 is installed on the damping spring mounting seat 7. The displacement sensor 8 is used to detect the height of the damping spring mounting seat 7 in real time and transmit the height information to the control system 3. The control system 3 controls the servo controller 2 to stop or start the servo motor 1.

[0026] Example 2 An electric lifting mechanism for a vibrating screen with feedback adjustment includes a servo motor 1, a servo controller 2, and a control system 3. The output end of the servo motor 1 is connected to a worm gear 4, the worm gear 4 is connected to a turbine shaft 5, and the turbine shaft 5 is connected to a lifting screw 6. A damping spring mounting seat 7 is fixedly installed at the upper end of the lifting screw 6. A displacement sensor 8 is installed on the damping spring mounting seat 7. The displacement sensor 8 is used to detect the height of the damping spring mounting seat 7 in real time and transmit the height information to the control system 3. The control system 3 controls the servo controller 2 to stop or start the servo motor 1.

[0027] The output end of the servo motor 1 is connected to the worm gear 4 via a coupling 9.

[0028] A hand crank 10 is fixedly installed at the end of the worm gear 4 away from the coupling 9.

[0029] Example 3 An electric lifting mechanism for a vibrating screen with feedback adjustment includes a servo motor 1, a servo controller 2, and a control system 3. The output end of the servo motor 1 is connected to a worm gear 4, the worm gear 4 is connected to a turbine shaft 5, and the turbine shaft 5 is connected to a lifting screw 6. A damping spring mounting seat 7 is fixedly installed at the upper end of the lifting screw 6. A displacement sensor 8 is installed on the damping spring mounting seat 7. The displacement sensor 8 is used to detect the height of the damping spring mounting seat 7 in real time and transmit the height information to the control system 3. The control system 3 controls the servo controller 2 to stop or start the servo motor 1.

[0030] The output end of the servo motor 1 is connected to the worm gear 4 via a coupling 9.

[0031] A hand crank 10 is fixedly installed at the end of the worm gear 4 away from the coupling 9.

[0032] It also includes a housing 11, one end of the worm gear 4 passes through the housing 11, and the middle part of the worm gear 4 is connected to the turbine shaft 5.

[0033] Both ends of the worm 4 are connected to the outer casing 11 via worm bearings 12.

[0034] Both ends of the turbine shaft 5 are connected to the outer casing 11 via turbine shaft bearings 13.

[0035] The lifting screw 6 is located in the middle of the turbine shaft 5.

[0036] The outer casing 11 has through holes on both the upper and lower sides that match the lifting screw 6.

[0037] Example 4 An electric lifting mechanism for a vibrating screen with feedback adjustment includes a servo motor 1, a servo controller 2, and a control system 3. The output end of the servo motor 1 is connected to a worm gear 4, the worm gear 4 is connected to a turbine shaft 5, and the turbine shaft 5 is connected to a lifting screw 6. A damping spring mounting seat 7 is fixedly installed at the upper end of the lifting screw 6. A displacement sensor 8 is installed on the damping spring mounting seat 7. The displacement sensor 8 is used to detect the height of the damping spring mounting seat 7 in real time and transmit the height information to the control system 3. The control system 3 controls the servo controller 2 to stop or start the servo motor 1.

[0038] The output end of the servo motor 1 is connected to the worm gear 4 via a coupling 9.

[0039] A hand crank 10 is fixedly installed at the end of the worm gear 4 away from the coupling 9.

[0040] It also includes a housing 11, one end of the worm gear 4 passes through the housing 11, and the middle part of the worm gear 4 is connected to the turbine shaft 5.

[0041] Both ends of the worm 4 are connected to the outer casing 11 via worm bearings 12.

[0042] Both ends of the turbine shaft 5 are connected to the outer casing 11 via turbine shaft bearings 13.

[0043] The lifting screw 6 is located in the middle of the turbine shaft 5.

[0044] The outer casing 11 has through holes on both the upper and lower sides that match the lifting screw 6.

[0045] It also includes a sliding sleeve assembly 14, which includes a first sliding sleeve 141 and a second sliding sleeve 142. The lower end of the first sliding sleeve 141 is fixedly connected to the upper end of the mounting box, the upper end of the first sliding sleeve 141 is slidably disposed inside the second sliding sleeve 142, and the upper end of the second sliding sleeve 142 is fixedly connected to the lower end of the vibration damping spring mounting seat 7.

[0046] Example 5 An electric lifting mechanism for a vibrating screen with feedback adjustment includes a servo motor 1, a servo controller 2, and a control system 3. The output end of the servo motor 1 is connected to a worm gear 4, the worm gear 4 is connected to a turbine shaft 5, and the turbine shaft 5 is connected to a lifting screw 6. A damping spring mounting seat 7 is fixedly installed at the upper end of the lifting screw 6. A displacement sensor 8 is installed on the damping spring mounting seat 7. The displacement sensor 8 is used to detect the height of the damping spring mounting seat 7 in real time and transmit the height information to the control system 3. The control system 3 controls the servo controller 2 to stop or start the servo motor 1.

[0047] The output end of the servo motor 1 is connected to the worm gear 4 via a coupling 9.

[0048] A hand crank 10 is fixedly installed at the end of the worm gear 4 away from the coupling 9.

[0049] It also includes a housing 11, one end of the worm gear 4 passes through the housing 11, and the middle part of the worm gear 4 is connected to the turbine shaft 5.

[0050] Both ends of the worm 4 are connected to the outer casing 11 via worm bearings 12.

[0051] Both ends of the turbine shaft 5 are connected to the outer casing 11 via turbine shaft bearings 13.

[0052] The lifting screw 6 is located in the middle of the turbine shaft 5.

[0053] The outer casing 11 has through holes on both the upper and lower sides that match the lifting screw 6.

[0054] The system also includes a sliding sleeve assembly 14, which includes a first sliding sleeve 141 and a second sliding sleeve 142. The lower end of the first sliding sleeve 141 is fixedly connected to the upper end of the mounting box, and the upper end of the first sliding sleeve 141 is slidably disposed outside the second sliding sleeve 142. The upper end of the second sliding sleeve 142 is fixedly connected to the lower end of the vibration damping spring mounting seat 7.

[0055] The sliding sleeve assembly 14 is a cuboid or a cylinder.

[0056] The vibration damping spring mounting base 7 includes a mounting base plate and a mounting seat that matches the vibrating screen. The mounting seat is located above the mounting base plate, and the lower end of the mounting seat is fixedly connected to the upper end of the lifting screw 6.

[0057] The beneficial effects of this technical solution are as follows: I. This invention provides an electric lifting mechanism for a vibrating screen with feedback adjustment. A servo motor 1 drives the turbine shaft 5 and worm gear 4 to rotate, thereby raising and lowering the lifting screw 6 and the damping spring mounting seat 7, thus adjusting the tilt angle of the vibrating screen box. The control system 3 controls the rotation of the servo motor 1 to drive the lifting screw 6, achieving lifting and lowering control of the vibrating screen box. Relying on the rotation of the servo motor 1, a displacement sensor 8 is added to monitor the position of the lifting mechanism by real-time reading of the height position of the damping spring mounting seat. The control system 3 uses preset stroke values ​​to calibrate and control the position of the lifting mechanism, ensuring that the lifting mechanism performs lifting and lowering movements within the adjustable stroke range of the vibrating screen box.

[0058] II. The present invention provides an electric lifting mechanism for a vibrating screen with feedback adjustment. The hand crank 10 allows manual adjustment of the lifting height of the damping spring mounting base 7 after the servo motor 1 loses power.

[0059] Third, the electric lifting mechanism for a vibrating screen with feedback adjustment provided by the present invention has a housing 11 that prevents impurities from entering the turbine shaft 5 and the worm gear 4, making the electric lifting mechanism for the vibrating screen operate more smoothly.

[0060] IV. The present invention provides an electric lifting mechanism for a vibrating screen with feedback adjustment. The sliding sleeve assembly 14 prevents impurities from entering the turbine shaft 5 and the worm gear 4, making the electric lifting mechanism for the vibrating screen operate more smoothly.

[0061] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. An electric lifting mechanism for a vibrating screen with feedback adjustment, characterized in that: The system includes a servo motor (1), a servo controller (2), and a control system (3). The output end of the servo motor (1) is connected to a worm gear (4), the worm gear (4) is connected to a turbine shaft (5), and the turbine shaft (5) is connected to a lifting screw (6). A damping spring mounting seat (7) is fixedly installed on the upper end of the lifting screw (6). A displacement sensor (8) is installed on the damping spring mounting seat (7). The displacement sensor (8) is used to detect the height of the damping spring mounting seat (7) in real time and transmit the height information to the control system (3). The control system (3) controls the servo controller (2) to stop or run the servo motor (1).

2. The vibrating screen electric lifting mechanism with feedback adjustment according to claim 1, characterized in that: The output end of the servo motor (1) is connected to the worm gear (4) via a coupling (9).

3. The vibrating screen electric lifting mechanism with feedback adjustment according to claim 1, characterized in that: A hand crank (10) is fixedly installed at the end of the worm gear (4) away from the coupling (9).

4. The vibrating screen electric lifting mechanism with feedback adjustment according to claim 1, characterized in that: It also includes a housing (11), one end of the worm (4) passes through the housing (11), and the middle part of the worm (4) is connected to the turbine shaft (5).

5. The vibrating screen electric lifting mechanism with feedback adjustment according to claim 4, characterized in that: Both ends of the worm (4) are connected to the outer shell (11) through worm bearings (12).

6. The vibrating screen electric lifting mechanism with feedback adjustment according to claim 5, characterized in that: Both ends of the turbine shaft (5) are connected to the outer casing (11) through turbine shaft bearings (13).

7. The vibrating screen electric lifting mechanism with feedback adjustment according to claim 6, characterized in that: The lifting screw (6) is located in the middle of the turbine shaft (5).

8. The vibrating screen electric lifting mechanism with feedback adjustment according to claim 7, characterized in that: The outer casing (11) has perforations on both the upper and lower sides that match the lifting screw (6).

9. The vibrating screen electric lifting mechanism with feedback adjustment according to claim 8, characterized in that: It also includes a sliding sleeve assembly (14), which includes a first sliding sleeve (141) and a second sliding sleeve (142). The lower end of the first sliding sleeve (141) is fixedly connected to the upper end of the mounting box, the upper end of the first sliding sleeve (141) is slidably disposed inside the second sliding sleeve (142), and the upper end of the second sliding sleeve (142) is fixedly connected to the lower end of the damping spring mounting seat (7).

10. The vibrating screen electric lifting mechanism with feedback adjustment according to claim 8, characterized in that: It also includes a sliding sleeve assembly (14), which includes a first sliding sleeve (141) and a second sliding sleeve (142). The lower end of the first sliding sleeve (141) is fixedly connected to the upper end of the mounting box, and the upper end of the first sliding sleeve (141) is slidably disposed outside the second sliding sleeve (142). The upper end of the second sliding sleeve (142) is fixedly connected to the lower end of the vibration damping spring mounting seat (7).

11. The vibrating screen electric lifting mechanism with feedback adjustment according to claim 9 or 10, characterized in that: The sliding sleeve assembly (14) is a cuboid or a cylinder.

12. The vibrating screen electric lifting mechanism with feedback adjustment according to claim 1, characterized in that: The vibration damping spring mounting base (7) includes a mounting base plate and a mounting seat that matches the vibrating screen. The mounting seat is located above the mounting base plate, and the lower end of the mounting seat is fixedly connected to the upper end of the lifting screw (6).

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