Servo lifting roller hydraulic equipment applied to lithium battery pole piece rolling mill

Abstract

The invention relates to the technical field of hydraulic equipment, in particular to servo lifting roller hydraulic equipment applied to a lithium battery pole piece rolling mill, which comprises a lifting plate and a multi-stage hydraulic cylinder for driving the lifting plate to move up and down, and further comprises a hydraulic device for supplying oil to the multi-stage hydraulic cylinder and controlling the multi-stage hydraulic cylinder to start and stop, the hydraulic device supplies oil to the multi-stage hydraulic cylinder through an arranged oil pipe, the multi-stage hydraulic cylinder is provided with a displacement detection assembly used for detecting the moving distance of the multi-stage lifting plate, and an oil supply pipe of the hydraulic device is provided with a cut-off assembly used for closing or opening input or output of hydraulic oil so that the multi-stage hydraulic cylinder can be kept at the set position. The distance of the lifting plate driven by the multi-stage hydraulic cylinder is accurately recognized by arranging the displacement detection assembly, then the oil pipe is closed through the cut-off assembly, lifting is kept at the set position, and compared with the mode that a chain block is adopted for cut-off of the oil pipe in the past, the lifting plate can be more accurately, stably and efficiently controlled.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic equipment, and in particular to a servo lifting roller hydraulic equipment applied to a lithium battery pole piece rolling mill. Background Art

[0002] Lithium battery pole pieces are usually rolled using pole piece rolling mills. The rolling of the pole pieces is a process in which friction is generated between the rollers and the pole pieces, and the pole pieces are pulled between the rotating rollers, causing the pole pieces to be compressed and deformed. The consistency of the thickness of the pole piece roll forming is an important indicator for measuring the stability of lithium batteries. The thickness accuracy of the pole piece is usually required to reach ±0.5 microns, which places high demands on the control of the hydraulic roll gap thickness of the pole piece rolling mill.

[0003] The existing lithium battery rolling mill lifting and lowering devices all use manual or electric hoists to lift the rollers. As the requirements for the accuracy and efficiency of the lifting rollers continue to increase, the manual or electric hoist method of lifting the rollers can no longer meet the demand, and the manual or electric hoist method of lifting the rollers has slow speed, low accuracy, poor stability, and great safety hazards. Summary of the invention

[0004] In order to overcome the above-mentioned shortcomings, the present invention aims to provide a technical solution that can solve at least one of the above-mentioned problems.

[0005] A servo lifting roller hydraulic device used in a lithium battery pole piece rolling mill, comprising a lifting plate and a multi-stage hydraulic cylinder for driving the lifting plate to move up and down, and also comprising a hydraulic device for supplying oil to the multi-stage hydraulic cylinder and controlling the start and stop of the multi-stage hydraulic cylinder. The hydraulic device supplies oil to the multi-stage hydraulic cylinder through an oil pipe provided, and the multi-stage hydraulic cylinder is provided with a displacement detection component for detecting the moving distance of the multi-stage lifting plate. The oil supply pipe of the hydraulic device is provided with a shut-off component for closing or opening the input or output of hydraulic oil so as to keep the multi-stage hydraulic cylinder at a set position.

[0006] As described above, a servo lifting roller hydraulic device applied to a lithium battery pole piece rolling mill comprises a hydraulic oil tank, a controller arranged in the hydraulic oil tank, and an electric pump arranged on the hydraulic oil tank, and also comprises a servo valve for controlling the flow rate of the hydraulic oil.

[0007] In the servo lifting roller hydraulic equipment applied to a lithium battery pole piece rolling mill as described above, the shutoff assembly is arranged at the oil outlet of the servo valve, and the multi-stage hydraulic cylinder is connected to the shutoff assembly through an oil pipe.

[0008] In the servo lifting roller hydraulic equipment applied to a lithium battery pole piece rolling mill as described above, the shut-off component is a solenoid valve.

[0009] As described above, in the servo lifting roller hydraulic equipment applied to the lithium battery pole piece rolling mill, the displacement detection component is a pull rope displacement sensor, model MPS-M-2000mm-MA.

[0010] As described above, in the servo lifting roller hydraulic equipment applied to the lithium battery pole piece rolling mill, two multi-stage hydraulic cylinders are provided, and the piston rods of the two multi-stage hydraulic cylinders are respectively connected to the lifting plate.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention is a servo lifting roller hydraulic equipment applied to a lithium battery pole piece rolling mill, which accurately identifies the distance of the lifting plate driven by the multi-stage hydraulic cylinder by setting a displacement detection component, and then closes the oil pipe through the cut-off component to keep the lifting at the set position. Compared with the previous method of using a hand winch to cut off the oil pipe, the lifting plate can be controlled more accurately, stably and efficiently.

[0012] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a structural schematic diagram of the hydraulic device in the present invention.

[0015] Figure 2 It is another structural schematic diagram of the hydraulic device in the present invention.

[0016] Figure 3 It is a structural schematic diagram of the multi-stage hydraulic cylinder in the present invention.

[0017] Figure 4 It is a structural schematic diagram of the servo valve in the present invention.

[0018] In the figure: 1, lifting plate; 2, multi-stage hydraulic cylinder; 3, hydraulic device; 30, hydraulic oil tank; 31, electric pump; 32, servo valve;

[0019] 4. Displacement detection component; 5. Flow cut-off component. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figures 1 to 4 In an embodiment of the present invention, a servo lifting roller hydraulic device applied to a lithium battery pole piece rolling mill includes a lifting plate 1 and a multi-stage hydraulic cylinder 2 for driving the lifting plate 1 to move up and down, and also includes a hydraulic device 3 for supplying oil to the multi-stage hydraulic cylinder 2 and controlling the start and stop of the multi-stage hydraulic cylinder 2. The hydraulic device 3 supplies oil to the multi-stage hydraulic cylinder 2 through an oil pipe provided. The multi-stage hydraulic cylinder 2 is provided with a displacement detection component 4 for detecting the moving distance of the multi-stage lifting plate 1. The oil supply pipe of the hydraulic device 3 is provided with a shutoff component 5 for closing or opening the input or output of hydraulic oil so that the multi-stage hydraulic cylinder 2 is kept at a set position. The present application accurately identifies the distance that the multi-stage hydraulic cylinder 2 drives the lifting plate 1 by setting the displacement detection component 4, and then closes the oil pipe by the shutoff component 5 to keep the lifting plate 1 at the set position. Compared with the previous method of using a hand chain hoist to shut off the oil pipe, the lifting plate 1 can be controlled more accurately, efficiently and stably. In addition, it should be noted that the oil pipe between the hydraulic device 3 and the multi-stage hydraulic cylinder 2 is not shown in the present application.

[0022] As a further solution of the present invention, the hydraulic device 3 includes a hydraulic oil tank 30, a controller (the controller is not shown in this application) disposed in the hydraulic oil tank 30, and an electric pump 31 disposed on the hydraulic oil tank 30, and also includes a servo valve 32 for controlling the flow of hydraulic oil. The cut-off component 5 is disposed at the oil outlet of the servo valve 32, and the multi-stage hydraulic cylinder 2 is connected to the cut-off component 5 through an oil pipe. In this application, in order to improve the control accuracy and stability of the system, the servo valve 32 is used to control the flow of hydraulic oil. The controller is a programmable logic controller, which is responsible for controlling and managing the operation of the entire elevator system. The hydraulic device 3 can also be equipped with a touch screen for displaying the system's operating status, parameter settings, fault alarms and other information. The touch screen can set the operating parameters of the lifting plate 1, such as lifting height, operating speed, etc. The controller controls the operation of the electric pump 31 and the servo valve 32 according to the set parameters and the signal fed back by the displacement detection component 4, so as to realize the lifting, lowering and stopping of the lifting plate 1. During operation, the controller monitors the operating status of the system in real time, such as the position synchronization accuracy of the lifting plate 1. When an abnormal situation occurs, an alarm signal is issued in time and corresponding protective measures are taken.

[0023] As a further solution of the present invention, the shut-off component 5 is a solenoid valve, through which the opening and closing of the oil pipe can be quickly and accurately controlled.

[0024] As a further solution of the present invention, the displacement detection component 4 is a pull-wire displacement sensor, model MPS-M-2000mm-MA. The present application adopts a pull-wire displacement sensor to monitor the position of the lifting plate 1 in real time to ensure the safe operation of the system.

[0025] As a further solution of the present invention, two multi-stage hydraulic cylinders 2 are provided, and the piston rods of the two multi-stage hydraulic cylinders 2 are respectively connected to the lifting plate 1. By providing two multi-stage hydraulic cylinders 2, the lifting plate 1 can be operated more smoothly. In addition, in the present application, a suitable hydraulic cylinder is selected, and when selecting, the stroke and diameter of the cylinder can be determined according to the lifting height and load of the lifting. In the present application, the multi-stage hydraulic cylinder 2 is a three-stage oil cylinder.

[0026] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. A servo lifting roller hydraulic device used in a lithium battery pole piece rolling mill, comprising a lifting plate and a multi-stage hydraulic cylinder for driving the lifting plate to move up and down, and also comprising a hydraulic device for supplying oil to the multi-stage hydraulic cylinder and controlling the start and stop of the multi-stage hydraulic cylinder. The hydraulic device supplies oil to the multi-stage hydraulic cylinder through an oil pipe provided, characterized in that The multi-stage hydraulic cylinder is provided with a displacement detection component for detecting the moving distance of the multi-stage lifting plate, and the oil supply pipe of the hydraulic device is provided with a cut-off component for closing or opening the input or output of the hydraulic oil so as to keep the multi-stage hydraulic cylinder at a set position.

2. The servo lifting roller hydraulic equipment used in a lithium battery pole piece rolling mill according to claim 1, characterized in that The hydraulic device comprises a hydraulic oil tank, a controller arranged in the hydraulic oil tank, an electric pump arranged on the hydraulic oil tank, and a servo valve for controlling the flow of the hydraulic oil.

3. The servo lifting roller hydraulic equipment used in a lithium battery pole piece rolling mill according to claim 1, characterized in that The cut-off assembly is arranged at the oil outlet of the servo valve, and the multi-stage hydraulic cylinder is connected with the cut-off assembly through an oil pipe.

4. The servo lifting roller hydraulic equipment used in a lithium battery pole piece rolling mill according to claim 3, characterized in that The shut-off component is a solenoid valve.

5. The servo lifting roller hydraulic equipment used in a lithium battery pole piece rolling mill according to claim 1, characterized in that: The displacement detection component is a pull-rope displacement sensor, model MPS-M-2000mm-MA.

6. The servo lifting roller hydraulic equipment used in a lithium battery pole piece rolling mill according to claim 1, characterized in that Two multi-stage hydraulic cylinders are provided, and piston rods of the two multi-stage hydraulic cylinders are respectively connected with the lifting plate.

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