CN213451059U - Pump-controlled roll bending hydraulic system of lithium battery pole piece rolling mill and roll bending device - Google Patents
Pump-controlled roll bending hydraulic system of lithium battery pole piece rolling mill and roll bending device Download PDFInfo
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- CN213451059U CN213451059U CN202022601226.0U CN202022601226U CN213451059U CN 213451059 U CN213451059 U CN 213451059U CN 202022601226 U CN202022601226 U CN 202022601226U CN 213451059 U CN213451059 U CN 213451059U
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Abstract
The utility model relates to a lithium battery pole piece rolling mill pump accuse bending roll hydraulic system and bending roll device, the upper and lower bearing frame of bending roll device is controlled both ends and all is provided with the bending roll jar, the outside of every bending roll jar all is provided with one set of pump accuse bending roll hydraulic system, give the controller with bending roll pressure instruction in, build the pressure by the rotatory of controller output speed signal control servo motor drive two-way constant delivery pump, the first hydraulic fluid port of two-way constant delivery pump passes through the low pressure pore, the low pressure pipeline is from the rodless chamber oil absorption of bending roll jar, the second hydraulic fluid port of two-way constant delivery pump passes through the high-pressure pore, the high pressure pipeline presses oil to the pole chamber that has of bending roll jar. The hydraulic roll bending force generated by the roll bending cylinder enables the roll to generate additional bending so as to compensate the transverse spacing deviation of the roll gap and improve the consistency of the rolling thickness of the pole piece. The utility model discloses can not only realize that the high accuracy of battery sheet is rolling, reduce installation, operation and the maintenance cost of system moreover, improve power-to-weight ratio and reliability.
Description
Technical Field
The utility model relates to a pole piece roll-in former technical field, in particular to lithium battery pole piece rolling mill pump accuse bending roll hydraulic system and bending roll device.
Background
The consistency of the roll forming thickness of the pole piece is one of important indexes for measuring the performance of the lithium battery, the hydraulic bending roll is a relatively widely used pole piece thickness control method at present, and the roll is additionally bent by applying hydraulic bending roll force to a roll bearing block so as to compensate the transverse spacing deviation of a roll gap and improve the uniformity of the rolling thickness of the pole piece.
As the pole piece has the problems of non-restrictive multi-source disturbance such as roll eccentricity, frame deformation, incoming material fluctuation and the like in the rolling process, in order to ensure the rolling quality of the pole piece, a hydraulic roll bending system is required to quickly respond and compensate various disturbances and approach a roll bending force set value with higher precision, so that the dynamic performance and steady-state precision of a roll bending force control system directly influence the forming quality of the battery pole piece.
The traditional hydraulic bending roll adopts an electro-hydraulic servo valve control cylinder technology, and the electro-hydraulic servo valve control bending roll is composed of a hydraulic oil source, a pipeline system, a servo valve, a hydraulic cylinder, a sensor and a control system. Although the valve-controlled roll bending has good control performance, the system configuration is complex, so that the equipment integration level is low, the installation cost is high, and in addition, the constant-pressure operation of a hydraulic oil source and the throttling loss of a pipeline and a valve port cause the waste of system energy; and because the servo valve has poor anti-pollution capacity and high requirement on oil cleanliness grade (NAS3-5), a precise filtering device is required to be arranged in the system, and the assembly cost is increased. And in order to ensure the reliable operation of the system, strict requirements are provided for equipment maintenance.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is overcome prior art not enough and provide a lithium battery pole piece rolling mill pump accuse bending roll hydraulic system and bending roll device, can realize that the high accuracy of pole piece is rolling, reduced installation, operation and the maintenance cost of system moreover, improved power-to-weight ratio and reliability.
In order to solve the technical problem, the utility model discloses the technical scheme who takes is:
a pump-controlled roll bending hydraulic system of a lithium battery pole piece rolling mill comprises a controller, a servo motor, a high-pressure pipeline, a bidirectional constant delivery pump, a low-pressure pipeline, a valve block, a first overflow valve, a second overflow valve, a first check valve, a second check valve, a first pressure sensor, a second pressure sensor and a first energy accumulator; a high-pressure channel, an oil drainage channel and a low-pressure channel are formed in the valve block; an output shaft of the servo motor is connected with an input shaft of the bidirectional constant delivery pump through a coupler, an oil port surface of the bidirectional constant delivery pump is attached to a wall surface of the valve block, a first oil port of the bidirectional constant delivery pump is connected with a rodless cavity of the bending roller cylinder through a low-pressure duct and a low-pressure pipeline in sequence, a second oil port of the bidirectional constant delivery pump is connected with a rod cavity of the bending roller cylinder through a high-pressure duct and a high-pressure pipeline in sequence, and a third oil port of the bidirectional constant delivery pump is connected with an oil drainage duct; the first energy accumulator is connected with the oil drainage hole; an oil inlet of the first overflow valve is connected with the high-pressure pore passage, an oil inlet of the second overflow valve is connected with the low-pressure pore passage, and oil outlets of the first overflow valve and the second overflow valve are connected with the oil drainage pore passage; the oil outlet of the first one-way valve is connected with the high-pressure pore passage, the oil outlet of the second one-way valve is connected with the low-pressure pore passage, and the oil inlets of the first one-way valve and the second one-way valve are connected with the oil drainage pore passage; the first pressure sensor is arranged on the high-pressure pore canal, and the second pressure sensor is arranged on the low-pressure pore canal; the first pressure sensor and the second pressure sensor are connected with the controller, and the controller is connected with the servo motor through the servo driver to perform closed-loop control on the servo motor.
Furthermore, the quick-change connector and the pressure relay are arranged on the oil drainage hole, and the pressure relay is connected with the controller.
Further, the device also comprises a temperature sensor; the temperature sensor is arranged on the low-pressure hole channel and is connected with the controller.
Furthermore, the device also comprises an electromagnetic directional valve, a first damping screw, a second damping screw and a second energy accumulator; the electromagnetic directional valve is bridged between the high-pressure pore passage and the low-pressure pore passage, the first damping screw is installed between the electromagnetic directional valve and the high-pressure pore passage, the second damping screw is installed between the electromagnetic directional valve and the low-pressure pore passage, and the second energy accumulator is connected with the high-pressure pore passage; and the controller is connected with the electromagnetic directional valve.
A roller bending device of a lithium battery pole piece rolling mill comprises a base, a housing, an upper roller device and a lower roller device, wherein the housing is fixedly arranged on the base, and the upper roller device and the lower roller device are arranged in the housing in a vertically sliding mode; the upper roller device comprises an upper bearing seat, an upper roller and two roller bending cylinders, wherein the upper roller is installed in the upper bearing seat in a matching way through an upper bearing, and the two roller bending cylinders are symmetrically arranged at the upper parts of the left end and the right end of the upper bearing seat; the lower roller device comprises a lower bearing seat, a lower roller and two roller bending cylinders, wherein the lower roller is installed in the lower bearing seat through a lower bearing in a matching way, and the two roller bending cylinders are symmetrically arranged at the lower parts of the left end and the right end of the lower bearing seat; the cylinder rod of each roll bending cylinder is respectively connected with the corresponding end of the corresponding bearing seat; and the outer side of each bending cylinder is provided with a set of pump-controlled bending hydraulic system.
Further, the roller bending cylinder comprises a cylinder barrel and a cylinder rod; the memorial archway is fixedly provided with a double-lug supporting seat, and the cylinder barrel is arranged on the double-lug supporting seat through a cylinder barrel fixing pin shaft; the cylinder rod is arranged at the end part of the corresponding bearing seat through a lever fixing pin shaft.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
(1) the utility model saves a huge hydraulic station, a complex pipeline system and an expensive servo valve, and reduces the assembly cost; by adopting a servo drive energy-saving technology, the overflow throttling loss of the traditional valve control AGC is effectively avoided, and the operation cost is reduced; the filter core has good anti-pollution capacity, the frequent replacement of the system filter core is not needed, and the maintenance cost is reduced; (2) the pump-controlled roll bending hydraulic system has high integration level, is convenient to install on the mechanical body of the pole piece rolling mill, and improves the power-weight ratio; the problems of leakage of oil liquid in a complex pipeline system and servo valve failure caused by oil liquid impurity pollution are effectively avoided, and the reliability is improved; (3) and by adopting pressure closed-loop control combining logic control, classical PID (proportion integration differentiation) and pressure feedforward compensation, the system has higher response speed and higher control precision.
Drawings
FIG. 1 is a schematic view of the whole structure of the roll bending device of the lithium battery pole piece rolling mill of the present invention;
FIG. 2 is a hydraulic schematic diagram of the present invention;
FIG. 3 is a logic control flow chart of the present invention;
FIG. 4 is a pressure closed loop control block diagram of the present invention;
in the figure: 1-a base, 2-a housing, 3-a lower roller device, 4-a lower bearing seat, 5-a lower roller, 6-an upper roller, 7-an upper bearing seat, 8-a high-pressure pipeline, 9-a servo motor, 10-a coupler, 11-a bidirectional constant delivery pump, 11.1-a first oil port, 11.2-a second oil port, 11.3-a third oil port, 12-a low-pressure pipeline, 13-a double-lug supporting seat, 14-a cylinder barrel fixing pin shaft, 15-a bending roller cylinder, 16-a cylinder barrel, 17-a cylinder rod, 18-a cylinder rod fixing pin shaft, 19-an upper bearing, 20-an upper roller device, 21-a lower bearing, 22-a pressure relay, 23-a quick-change connector, 24-a first energy accumulator, 25-a first one-way valve and 26-a second one-way valve, 27-a valve block, 28-a high-pressure hole passage, 29-an oil drainage hole passage, 30-a low-pressure hole passage, 31-a first overflow valve, 32-a second overflow valve, 33-a temperature sensor, 34-a first pressure sensor, 35-a first damping screw, 36-an electromagnetic directional valve, 37-a second damping screw, 38-a second pressure sensor and 39-a second energy accumulator.
Detailed Description
The above description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clear, the present invention is further explained below through the accompanying drawings and the embodiments.
The first embodiment is as follows:
as shown in fig. 1 and 2, a pump-controlled roll bending hydraulic system of a lithium battery pole piece rolling mill comprises a controller, a servo motor 9, a high-pressure pipeline 8, a bidirectional constant displacement pump 11, a low-pressure pipeline 12, a valve block 27, a first overflow valve 31, a second overflow valve 32, a first check valve 25, a second check valve 26, a first pressure sensor 34, a second pressure sensor 38 and a first energy accumulator 24; a high-pressure channel 28, an oil drainage channel 29 and a low-pressure channel 30 are formed in the valve block 27; an output shaft of the servo motor 9 is connected with an input shaft of the bidirectional constant delivery pump 11 through a coupler 10, an oil port face of the bidirectional constant delivery pump 11 is attached to a wall face of the valve block 27, a first oil port 11.1 of the bidirectional constant delivery pump 11 is connected with a rodless cavity of the bending roller cylinder 15 through a low-pressure duct 30 and a low-pressure pipeline 12 in sequence, a second oil port 11.2 of the bidirectional constant delivery pump 11 is connected with a rod cavity of the bending roller cylinder 15 through a high-pressure duct 28 and a high-pressure pipeline 8 in sequence, and a third oil port 11.3 of the bidirectional constant delivery pump 11 is connected with an oil drainage duct 29; the first accumulator 24 is connected with the oil drainage hole 29; an oil inlet of the first overflow valve 31 is connected with the high-pressure pore passage 28, an oil inlet of the second overflow valve 32 is connected with the low-pressure pore passage 30, and oil outlets of the first overflow valve 31 and the second overflow valve 32 are both connected with the oil drainage pore passage 29; the oil outlet of the first check valve 25 is connected with a high-pressure duct 28, the oil outlet of the second check valve 26 is connected with a low-pressure duct 30, and the oil inlets of the first check valve 25 and the second check valve 26 are connected with an oil drainage duct 29; a first pressure sensor 34 is disposed on the high pressure port 28, and a second pressure sensor 38 is disposed on the low pressure port 30; the first pressure sensor 34 and the second pressure sensor 38 are connected to a controller, which is connected to the servo motor 9 via a servo driver, for closed-loop control of the servo motor 9.
The utility model discloses a servo motor 9 takes the integrated volume control scheme of two-way constant delivery pump 11 direct drive control bending roll jar 15, set for the bending roll hydraulic pressure value according to battery sheet roll forming quality, the controller receives pressure command and sends rotational speed signal to servo driver, servo driver and then control servo motor 9 drive two-way constant delivery pump 11 rotatory build-up pressure, the first hydraulic fluid port 11.1 of two-way constant delivery pump 11 inhales oil from the rodless chamber of bending roll jar 15, the second hydraulic fluid port 11.2 presses oil to the rod chamber of bending roll jar 15, the interior leakage fluid of two-way constant delivery pump 11 loops through third hydraulic fluid port 11.3 and draining pore 29 and stores in first energy storage ware 24; the first pressure sensor 34 and the second pressure sensor 38 are respectively used for monitoring the pressures of the high- low pressure ducts 28 and 30 and feeding back the pressures to the controller in real time, and when the pressures of the high- low pressure ducts 28 and 30 exceed a safety set value, the first overflow valve 31 and the second overflow valve 32 overflow redundant oil into the first energy accumulator 24 through the oil drainage duct 29, so that the pressures of the high- low pressure ducts 28 and 30 are stabilized in a safety range; the first accumulator 24 is used as an oil supplementing unit of the system to supplement oil to high and low pressure ducts 28 and 30 of the system through an oil drainage duct 29, a first check valve 25 and a second check valve 26, and is used for compensating internal and external leakage generated in the working process of the system.
The pump-controlled roll bending hydraulic system also comprises a quick-change connector 23 and a pressure relay 22; the quick-change connector 23 and the pressure relay 22 are arranged on the oil drainage channel 29, and the pressure relay 22 is connected with the controller. When the pressure relay 22 detects that the pressure of the oil supplementing cavity, namely the oil drainage hole 29 is lower than the lowest allowable value, the system gives an alarm, the equipment is stopped, and at the moment, the oil is supplemented to the first energy accumulator 24 through the quick change connector 23.
The pump-controlled roll bending hydraulic system also comprises a temperature sensor 33; a temperature sensor 33 is provided on the low pressure port 30, and the temperature sensor 33 is connected to the controller. When the temperature sensor 33 monitors that the oil temperature of the low-pressure pore passage 30 of the system is too high, the system gives an alarm, the equipment is shut down, and at the moment, the equipment needs to be kept stand for a period of time until the oil temperature is cooled to be within an allowable working range.
The pump-controlled roll bending hydraulic system also comprises an electromagnetic directional valve 36, a first damping screw 35, a second damping screw 37 and a second energy accumulator 39; the electromagnetic directional valve 36 is bridged between the high-pressure pore passage 28 and the low-pressure pore passage 30, the first damping screw 35 is installed between the electromagnetic directional valve 36 and the high-pressure pore passage 28, the second damping screw 37 is installed between the electromagnetic directional valve 36 and the low-pressure pore passage 30, and the second energy accumulator 39 is connected with the high-pressure pore passage 28; the controller is connected to the electromagnetic directional valve 36. When the equipment is ready to be stopped or needs emergency stop and unloading in case of emergency, the electromagnetic directional valve 36 is electrified, the high-low pressure pore canals 28 and 30 are communicated, the system is unloaded, the cylinder rod 17 extends out, and the first damping screw 35 and the second damping screw 37 are used for preventing overlarge impact vibration generated in unloading; the second accumulator 39 is used to absorb pressure pulsation of the oil, facilitating accurate control of the system pressure.
As shown in fig. 3, the logic control method of the pump-controlled roll bending system of the present invention is: initializing after starting the device, detecting whether an unloading and alarming instruction exists in the system, if so, triggering an unloading subprogram, opening an electromagnetic directional valve 36, unloading the system, and enabling a servo motor 9 to be in a standby mode; if an alarm instruction exists, an open-loop subprogram is triggered, the servo motor 9 is in a standby mode, if no unloading and alarm instruction exists, the system starts temperature and pressure self-checking, when the detected temperature and pressure are out of the normal operation range of the equipment, the servo motor 9 is also in the standby mode, if the system temperature and pressure self-checking are normal, the equipment can start normal operation, at the moment, the pressure instruction is given, the system calls a closed-loop control subprogram, the rotating speed of the servo motor 9 is controlled, the system pressure is enabled to respond to the given pressure quickly, and the given pressure is enabled to be stabilized within the required precision range.
As shown in fig. 4, the pressure closed-loop control process of the pump-controlled roll bending system of the present invention is: the upper computer gives a bending roll pressure instruction to the controller in a bus form, the controller receives the feedback pressure of the first pressure sensor 34, the PID closed-loop control program of the controller outputs an expected rotating speed signal to the servo driver by comparing the two pressures in real time, the servo driver controls the servo motor 9 to drive the bidirectional constant delivery pump 11 to rotate, when the pressure of the rod cavity exceeds the given pressure, the controller sends a negative rotating speed instruction, and the second oil port 11.2 of the bidirectional constant delivery pump 11 sucks oil and reduces pressure from the rod cavity; when the pressure of the rod cavity is lower than the given pressure, the controller sends a forward rotation speed instruction, the second oil port 11.2 of the bidirectional constant delivery pump 11 injects oil to the rod cavity for pressurization, so that the high-precision output of the system pressure is realized, meanwhile, the system adopts a pressure feedforward compensation controller, the track planning is carried out on the set pressure, the rotating speed compensation value of the servo motor is calculated, and the rotating speed compensation value and the rotating speed signal output by the controller are acted in a servo driver together, so that the response speed of the system is higher, and the control precision is higher.
Example two:
as shown in fig. 1, a roller bending device of a lithium battery pole piece rolling mill comprises a base 1, a housing 2 fixedly installed on the base 1, and an upper roller device 20 and a lower roller device 3 which are installed in the housing 2 in a vertically sliding manner; the upper roller device 20 comprises an upper bearing block 7, an upper roller 6 which is arranged in the upper bearing block 7 through an upper bearing 19 in a matching way, and two roller bending cylinders 15 which are symmetrically arranged at the upper parts of the left end and the right end of the upper bearing block 7; the lower roll device 3 comprises a lower bearing block 4, a lower roll 5 which is arranged in the lower bearing block 4 through a lower bearing 21 in a matching way, and two roll bending cylinders 15 which are symmetrically arranged at the lower parts of the left end and the right end of the lower bearing block 4; the cylinder rod 17 of each bending cylinder 15 is connected with the corresponding end of the corresponding bearing block 4, 7 respectively; the outside of each roll bending cylinder 15 is provided with a set of the above-mentioned pump-controlled roll bending hydraulic system. The servo motor 9, the bidirectional constant delivery pump 11, the valve block 27 and the like are all fixedly arranged on the housing 2.
In the roll bending device, a roll bending cylinder 15 comprises a cylinder barrel 16 and a cylinder rod 17; a double-lug supporting seat 13 is fixedly arranged on the housing 2, and a cylinder 16 is arranged on the double-lug supporting seat 13 through a cylinder fixing pin shaft 14; the cylinder rod 17 is mounted at the end of the respective bearing block by a lever fixing pin 18.
The four roll bending cylinders 15 of the roll bending device are respectively connected with a set of pump-controlled roll bending hydraulic system. A first oil port 11.1 of a bidirectional fixed displacement pump 11 in each set of pump-controlled bending roll hydraulic system is connected with a rodless cavity of a bending roll cylinder 15 through a low-pressure pipeline 12, and a second oil port 11.2 of the bidirectional fixed displacement pump 11 is connected with a rod cavity of the bending roll cylinder 15 through a high-pressure pipeline 8. A bending roll pressure instruction is given to a controller, the controller outputs a rotating speed signal to control a servo motor to drive a bidirectional constant delivery pump 11 to rotate and build pressure, a first oil port 11.1 of the bidirectional constant delivery pump 11 sucks oil from a rodless cavity of a bending roll cylinder 15 through a low-pressure pore passage and a low-pressure pipeline, a second oil port 11.2 of the bidirectional constant delivery pump 11 presses oil to a rod cavity of the bending roll cylinder 15 through a high-pressure pore passage and a high-pressure pipeline, and therefore a cylinder rod 17 generates a retraction force. The roll is additionally bent by the hydraulic roll bending force generated by the roll bending cylinder 15, the convexity of the roll gap is changed, so that the transverse distance deviation of the roll gap is compensated, the forming precision of the lithium battery pole piece is controlled, and the consistency of the rolling thickness of the pole piece is improved. The utility model discloses can not only realize that the high accuracy of battery sheet is rolling, reduce installation, operation and the maintenance cost of system moreover, improve power-to-weight ratio and reliability.
Claims (6)
1. The utility model provides a lithium battery pole piece rolling mill pump accuse bending roll hydraulic system which characterized in that: the system comprises a controller, a servo motor (9), a high-pressure pipeline (8), a bidirectional constant delivery pump (11), a low-pressure pipeline (12), a valve block (27), a first overflow valve (31), a second overflow valve (32), a first one-way valve (25), a second one-way valve (26), a first pressure sensor (34), a second pressure sensor (38) and a first energy accumulator (24);
a high-pressure duct (28), an oil drainage duct (29) and a low-pressure duct (30) are arranged in the valve block (27); an output shaft of the servo motor (9) is connected with an input shaft of the bidirectional constant delivery pump (11) through a coupler (10), an oil port face of the bidirectional constant delivery pump (11) is attached to a wall face of a valve block (27), a first oil port (11.1) of the bidirectional constant delivery pump (11) is connected with a rodless cavity of the bending roller cylinder (15) sequentially through a low-pressure duct (30) and a low-pressure pipeline (12), a second oil port (11.2) of the bidirectional constant delivery pump (11) is connected with a rod cavity of the bending roller cylinder (15) sequentially through a high-pressure duct (28) and a high-pressure pipeline (8), and a third oil port (11.3) of the bidirectional constant delivery pump (11) is connected with an oil drainage duct (29); the first energy accumulator (24) is connected with the oil drainage hole (29); an oil inlet of the first overflow valve (31) is connected with the high-pressure pore passage (28), an oil inlet of the second overflow valve (32) is connected with the low-pressure pore passage (30), and oil outlets of the first overflow valve (31) and the second overflow valve (32) are connected with the oil drainage pore passage (29);
an oil outlet of the first check valve (25) is connected with a high-pressure duct (28), an oil outlet of the second check valve (26) is connected with a low-pressure duct (30), and oil inlets of the first check valve (25) and the second check valve (26) are connected with an oil drainage duct (29); the first pressure sensor (34) is arranged on the high-pressure duct (28), and the second pressure sensor (38) is arranged on the low-pressure duct (30);
the first pressure sensor (34) and the second pressure sensor (38) are connected with a controller, and the controller is connected with the servo motor (9) through a servo driver to perform closed-loop control on the servo motor (9).
2. The lithium battery pole piece rolling mill pump-controlled roll bending hydraulic system as claimed in claim 1, characterized in that: the quick-change connector (23) and the pressure relay (22) are arranged on the oil drainage channel (29), and the pressure relay (22) is connected with the controller.
3. The lithium battery pole piece rolling mill pump-controlled roll bending hydraulic system as claimed in claim 1, characterized in that: also comprises a temperature sensor (33); the temperature sensor (33) is arranged on the low-pressure duct (30), and the temperature sensor (33) is connected with the controller.
4. The lithium battery pole piece rolling mill pump-controlled roll bending hydraulic system as claimed in any one of claims 1 to 3, characterized in that: the hydraulic damper further comprises an electromagnetic directional valve (36), a first damping screw (35), a second damping screw (37) and a second energy accumulator (39); the electromagnetic directional valve (36) is bridged between the high-pressure duct (28) and the low-pressure duct (30), a first damping screw (35) is installed between the electromagnetic directional valve (36) and the high-pressure duct (28), a second damping screw (37) is installed between the electromagnetic directional valve (36) and the low-pressure duct (30), and a second energy accumulator (39) is connected with the high-pressure duct (28); the controller is connected with the electromagnetic directional valve (36).
5. A roller bending device of a lithium battery pole piece rolling mill comprises a base (1), a housing (2) fixedly arranged on the base (1), and an upper roller device (20) and a lower roller device (3) which are arranged in the housing (2) in a vertically sliding manner; the upper roller device (20) comprises an upper bearing pedestal (7), an upper roller (6) which is arranged in the upper bearing pedestal (7) in a matching way through an upper bearing (19) and two roller bending cylinders (15) which are symmetrically arranged at the upper parts of the left end and the right end of the upper bearing pedestal (7); the lower roll device (3) comprises a lower bearing seat (4), a lower roll (5) which is arranged in the lower bearing seat (4) in a matching way through a lower bearing (21) and two roll bending cylinders (15) which are symmetrically arranged at the lower parts of the left end and the right end of the lower bearing seat (4); a cylinder rod (17) of each bending cylinder (15) is respectively connected with the corresponding end of the corresponding bearing seat; the method is characterized in that: a set of pump controlled roll bending hydraulic systems according to any of claims 1-3 is arranged outside each roll bending cylinder (15).
6. The lithium battery pole piece rolling mill roll bending device of claim 5, characterized in that: the roll bending cylinder (15) comprises a cylinder barrel (16) and a cylinder rod (17); a double-lug supporting seat (13) is fixedly arranged on the housing (2), and the cylinder barrel (16) is arranged on the double-lug supporting seat (13) through a cylinder barrel fixing pin shaft (14); the cylinder rod (17) is arranged at the end part of the corresponding bearing seat through a lever fixing pin shaft (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022601226.0U CN213451059U (en) | 2020-11-11 | 2020-11-11 | Pump-controlled roll bending hydraulic system of lithium battery pole piece rolling mill and roll bending device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022601226.0U CN213451059U (en) | 2020-11-11 | 2020-11-11 | Pump-controlled roll bending hydraulic system of lithium battery pole piece rolling mill and roll bending device |
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| CN202022601226.0U Active CN213451059U (en) | 2020-11-11 | 2020-11-11 | Pump-controlled roll bending hydraulic system of lithium battery pole piece rolling mill and roll bending device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114472596A (en) * | 2022-01-25 | 2022-05-13 | 三一技术装备有限公司 | Roller deflection deformation correcting system and battery pole piece rolling equipment |
| CN116673333A (en) * | 2023-07-31 | 2023-09-01 | 邢台纳科诺尔精轧科技股份有限公司 | Device for correcting roll shape of roller and rolling mill |
-
2020
- 2020-11-11 CN CN202022601226.0U patent/CN213451059U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114472596A (en) * | 2022-01-25 | 2022-05-13 | 三一技术装备有限公司 | Roller deflection deformation correcting system and battery pole piece rolling equipment |
| CN114472596B (en) * | 2022-01-25 | 2024-04-09 | 三一技术装备有限公司 | Roller deflection deformation correction system and battery pole piece rolling equipment |
| CN116673333A (en) * | 2023-07-31 | 2023-09-01 | 邢台纳科诺尔精轧科技股份有限公司 | Device for correcting roll shape of roller and rolling mill |
| CN116673333B (en) * | 2023-07-31 | 2023-11-03 | 邢台纳科诺尔精轧科技股份有限公司 | Device for correcting roll shape of roller and rolling mill |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |