CN217177005U - Testing device for straight-stroke electric actuating mechanism - Google Patents
Testing device for straight-stroke electric actuating mechanism Download PDFInfo
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- CN217177005U CN217177005U CN202221140290.6U CN202221140290U CN217177005U CN 217177005 U CN217177005 U CN 217177005U CN 202221140290 U CN202221140290 U CN 202221140290U CN 217177005 U CN217177005 U CN 217177005U
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Abstract
Straight stroke electric actuator testing arrangement. Relates to the technical field of testing. The hydraulic loading device comprises a frame body, a hydraulic cylinder, a hydraulic loading system and a controller, wherein an electric actuating mechanism is arranged above the frame body, the hydraulic cylinder is positioned in the frame body, and a pull pressure sensor is connected between an output shaft of the electric actuating mechanism and a piston rod of the hydraulic cylinder; the hydraulic loading system is connected with the hydraulic cylinder through a hydraulic oil pipe; the electric actuating mechanism, the pull pressure sensor and the hydraulic loading system are connected with the controller. The hydraulic loading system includes pressurization oil tank, gear pump, inverter motor, solenoid valve one, hydraulic rectifier bridge, one-way throttle valve, liquid accuse check valve, electromagnetic directional valve, solenoid valve two and proportion overflow valve, the utility model discloses realize hydraulic loading system and uninstall completely, make things convenient for the product test after dismantlement.
Description
Technical Field
The utility model relates to a test technical field especially relates to a straight stroke electric actuator testing arrangement.
Background
An electric actuator is a drive device that provides linear or rotational motion and operates with some type of drive energy and under some type of control signal. Actuators use liquid, gas, electricity or other energy sources and convert them into drive action by motors, cylinders or other means.
Along with the development of science and technology, the automation degree of industrial production is higher and higher, and an electric actuating mechanism is gradually moving towards intellectualization and digitization. As technology evolves, test measurement equipment also needs to be constantly updated over time.
The existing testing means has the problem that the push/pull force and the stroke of a product cannot be measured in the full stroke range.
SUMMERY OF THE UTILITY MODEL
The utility model provides a to above problem, provide one kind use hydraulic system loading, can be in the full stroke within range all can accurate measurement straight stroke electric actuator output push away/pulling force and the straight stroke electric actuator testing arrangement of stroke.
The technical scheme of the utility model is that: comprises a frame body, a hydraulic cylinder, a hydraulic loading system and a controller,
an electric actuating mechanism is arranged above the frame body, the hydraulic cylinder is positioned in the frame body, and a pull pressure sensor is connected between an output shaft of the electric actuating mechanism and a piston rod of the hydraulic cylinder;
the hydraulic loading system is connected with the hydraulic cylinder through a hydraulic oil pipe;
the electric actuating mechanism, the pull pressure sensor and the hydraulic loading system are connected with the controller.
The hydraulic loading system comprises a pressurized oil tank, a gear pump, a variable frequency motor, a first electromagnetic valve, a hydraulic rectifier bridge, a one-way throttle valve, a hydraulic control one-way valve, an electromagnetic directional valve, a second electromagnetic valve and a proportional overflow valve,
the pressurization oil tank, the gear pump, the first electromagnetic valve, the hydraulic rectifier bridge and one end of the hydraulic cylinder are sequentially connected, the gear pump is connected with the variable frequency motor, and an oil path between the hydraulic rectifier bridge and one end of the hydraulic cylinder is connected with the one-way throttle valve;
the other end of the hydraulic cylinder, the one-way throttle valve, the hydraulic control one-way valve, the electromagnetic directional valve, the electromagnetic valve II, the proportional overflow valve and the pressurized oil tank are sequentially connected, and an oil path between the other end of the hydraulic cylinder and the one-way throttle valve is connected with a hydraulic rectifier bridge;
the hydraulic rectifier bridge is connected with an electromagnetic directional valve, an electromagnetic valve II and a proportional overflow valve through an oil way,
and an oil path between the gear pump and the first electromagnetic valve is connected with the electromagnetic directional valve, the second electromagnetic valve and the proportional overflow valve.
The hydraulic rectifier bridge comprises a first check valve, a second check valve, a third check valve and a fourth check valve which are sequentially connected and annularly arranged, and the directions of every two adjacent check valves are opposite.
The device also comprises a temperature sensor, a liquid level alarm and a turning plate liquid level meter, wherein the temperature sensor, the liquid level alarm and the turning plate liquid level meter are respectively connected with a pressurizing oil tank.
The cooling device also comprises an air-cooled cooler, and the air-cooled cooler is used for cooling an oil path between the proportional overflow valve and the pressurized oil tank.
The hydraulic control system further comprises a pressure sensor, and the pressure sensor is connected with an oil circuit between the gear pump and the first electromagnetic valve.
The device also comprises a first filter and a second filter, wherein the first filter is connected between the gear pump and the first electromagnetic valve, and the second filter is connected between the proportional overflow valve and the pressurized oil tank.
The electric actuator is characterized by further comprising a grating ruler, wherein the grating ruler is arranged on one side of the electric actuator and is connected with the controller.
The utility model comprises an electric actuator, a tension pressure sensor and a hydraulic cylinder, and can accurately measure the push/pull force output by the measured straight travel electric actuator by the tension pressure sensor; the controller controls the hydraulic cylinder through a hydraulic loading system, a proportional overflow valve in the hydraulic loading system is respectively connected with a pressurizing oil tank and the hydraulic cylinder through a one-way throttle valve, a hydraulic control one-way valve, an electromagnetic directional valve, a first electromagnetic valve, a second electromagnetic valve and the like, the active telescopic function of the hydraulic cylinder is realized by controlling the opening degree of the proportional overflow valve, and the hydraulic cylinder is conveniently connected with straight-stroke electric actuating mechanisms with different strokes; the passive loading of the hydraulic cylinder is realized, and the straight-stroke electric actuating mechanism with different output forces is conveniently tested; the hydraulic loading system is completely unloaded, and the product is convenient to disassemble after being tested.
Drawings
Figure 1 is a hydraulic schematic diagram of the present invention,
figure 2 is a hydraulic schematic of a hydraulic rectifier bridge,
FIG. 3 is a block diagram of the present invention;
in the figure, 1 is a frame body, 2 is a hydraulic cylinder, 3 is a controller, 4 is an electric actuator, 5 is a pulling pressure sensor, 6 is a pressurizing oil tank, 7 is a gear pump, 8 is a variable frequency motor, 9 is a first electromagnetic valve,
10 is a hydraulic rectifier bridge, 101 is a first check valve, 102 is a second check valve, 103 is a third check valve, 104 is a fourth check valve,
11 is a one-way throttle valve, 12 is a hydraulic control one-way valve, 13 is an electromagnetic directional valve, 14 is an electromagnetic valve II, 15 is a proportional overflow valve, 16 is a temperature sensor, 17 is a liquid level alarm, 18 is a flap level gauge, 19 is an air cooling cooler, 20 is a pressure sensor, 21 is a filter I, 22 is a filter II, 23 is a grating ruler, and 24 is a fifth one-way valve.
Detailed Description
The utility model is shown in figures 1-3, and comprises a frame body 1, a hydraulic cylinder 2, a hydraulic loading system and a controller 3,
an electric actuator 4 is arranged above the frame body 1, the hydraulic cylinder 2 is positioned in the frame body, and a tension pressure sensor 5 is connected between an output shaft of the electric actuator 4 and a piston rod of the hydraulic cylinder 2;
the hydraulic loading system is connected with the hydraulic cylinder through a hydraulic oil pipe;
the electric actuating mechanism 4, the pull pressure sensor 5 and the hydraulic loading system are connected with the controller 3.
The utility model can accurately measure the push/pull force output by the measured straight stroke electric actuating mechanism through the pull pressure sensor during the work, comprising the straight stroke electric actuating mechanism, the pull pressure sensor and the hydraulic cylinder;
the controller controls the hydraulic cylinder through a hydraulic loading system, a proportional overflow valve in the hydraulic loading system is respectively connected with a pressurizing oil tank and the hydraulic cylinder through a one-way throttle valve, a hydraulic control one-way valve, an electromagnetic directional valve, a first electromagnetic valve, a second electromagnetic valve and the like, and the hydraulic cylinder actively stretches and retracts by controlling the opening of the proportional overflow valve, so that the hydraulic cylinder is conveniently connected with straight-stroke electric actuating mechanisms with different strokes; the passive loading of the hydraulic cylinder is realized, and the straight-stroke electric actuating mechanism with different output forces is conveniently tested; the hydraulic loading system is completely unloaded, and the product is convenient to disassemble after being tested.
The controller is connected with the tested straight stroke electric actuating mechanism, the grating ruler, the pull pressure sensor, the variable frequency motor, the air cooling cooler, the one-way throttle valve, the hydraulic control one-way valve, the electromagnetic directional valve, the first electromagnetic valve, the second electromagnetic valve, the pressure sensor, the temperature sensor, the liquid level alarm and the like by using cables, so that the control of the tested straight stroke electric actuating mechanism, the display of the push/pull force measured by the pull pressure sensor, the display of the stroke measured by the grating ruler, the control of the opening degree of the proportional overflow valve, the control of the one-way throttle valve, the hydraulic control one-way valve, the electromagnetic directional valve, the first electromagnetic valve, the second electromagnetic valve, the display of the pressure sensor signal, the display of the temperature sensor signal and the display of the liquid level alarm signal are realized, and the use of a tester is facilitated.
The hydraulic loading system comprises a pressurized oil tank 6, a gear pump 7, a variable frequency motor 8, a first electromagnetic valve 9, a hydraulic rectifier bridge 10, a one-way throttle valve 11, a hydraulic control one-way valve 12, an electromagnetic directional valve 13, a second electromagnetic valve 14 and a proportional overflow valve 15,
the pressurization oil tank 6, the gear pump 7, the first electromagnetic valve 9, the hydraulic rectifier bridge 10 and one end of the hydraulic cylinder 2 are sequentially connected, the gear pump 7 is connected with the variable frequency motor 8, and an oil path between the hydraulic rectifier bridge 10 and one end of the hydraulic cylinder 2 is connected with the one-way throttle valve 11;
the other end of the hydraulic cylinder 2, the one-way throttle valve 11, the hydraulic control one-way valve 12, the electromagnetic directional valve 13, the second electromagnetic valve 14, the proportional overflow valve 15 and the pressurized oil tank 6 are sequentially connected, and an oil path between the other end of the hydraulic cylinder 2 and the one-way throttle valve 11 is connected with the hydraulic rectifier bridge 10;
the hydraulic rectifier bridge 10 is connected with an electromagnetic directional valve, an electromagnetic valve II and a proportional overflow valve through an oil way,
and an oil path between the gear pump 7 and the first electromagnetic valve 9 is connected with an electromagnetic directional valve, a second electromagnetic valve and a proportional overflow valve.
The variable frequency motor is adopted to drive the gear pump to generate high-pressure hydraulic oil, and when a tested product is not debugged, the frequency converter automatically controls the motor to run at a low rotating speed to realize low-power-consumption running;
set up the pressurization oil tank for the oil tank is isolated with the outside air, can guarantee that hydraulic oil does not receive external impurity to pollute, guarantees that testing arrangement works for a long time.
The hydraulic rectifier bridge 10 comprises a first check valve 101, a second check valve 102, a third check valve 103 and a fourth check valve 104 which are sequentially connected and annularly arranged, and the directions of every two adjacent check valves are opposite.
In specific application, the electromagnetic valve is connected between the first one-way valve and the second one-way valve, the hydraulic rectifier bridge (namely, between the third one-way valve and the fourth one-way valve) is connected with the electromagnetic directional valve, the electromagnetic valve II and the proportional overflow valve through an oil path, the oil path between the hydraulic rectifier bridge (namely, between the first one-way valve and the fourth one-way valve) and one end of the hydraulic cylinder is connected with the one-way throttle valve, and the oil path between the other end of the hydraulic cylinder and the one-way throttle valve is connected with the hydraulic rectifier bridge (namely, between the second one-way valve and the third one-way valve).
A hydraulic rectifier bridge is synthesized by the check valve group, so that no load exists when the hydraulic cylinder does not act, and the load automatically intervenes when the hydraulic cylinder acts.
The device also comprises a temperature sensor 16, a liquid level alarm 17 and a flap liquid level meter 18, wherein the temperature sensor, the liquid level alarm and the flap liquid level meter are respectively connected with a pressurized oil tank.
The hydraulic control system further comprises a pressure sensor 20, wherein the pressure sensor is connected with an oil circuit between the gear pump and the first electromagnetic valve.
The hydraulic oil pressure, temperature and liquid level in the hydraulic loading system can be measured by arranging the pressure sensor, the temperature sensor and the liquid level alarm, and signals can be transmitted to the controller, so that field testers can conveniently judge the conditions, and the safety of the testers is ensured.
An air-cooled cooler 19 is also included for cooling the oil path between the proportional relief valve and the pressurized oil tank.
The hydraulic oil in the proportional overflow valve and the load oil way is fully cooled, so that the problem that the test cannot run for a long time due to overhigh oil temperature is prevented.
The device also comprises a first filter 21 and a second filter 22, wherein the first filter is connected between the gear pump and the first electromagnetic valve, and the second filter is connected between the proportional overflow valve and the pressurized oil tank.
The first filter and the second filter are arranged to play a role in filtering.
In application, a fifth one-way valve 24 is further arranged between the second filter and the proportional overflow valve, pressure self-balancing is achieved through the fifth one-way valve, the third one-way valve and the fourth one-way valve, and the hydraulic cylinder can run without load after the second electromagnetic valve 14 is electrified.
The electric actuator is characterized by further comprising a grating ruler 23, wherein the grating ruler is arranged on one side of the electric actuator and is connected with the controller.
Therefore, the output stroke of the measured straight stroke electric actuating mechanism is accurately measured through the grating ruler.
The disclosure of the present application also includes the following points:
(1) the drawings of the embodiments disclosed herein only relate to the structures related to the embodiments disclosed herein, and other structures can refer to general designs;
(2) in case of conflict, the embodiments and features of the embodiments disclosed in this application can be combined with each other to arrive at new embodiments;
the above embodiments are only embodiments disclosed in the present disclosure, but the scope of the disclosure is not limited thereto, and the scope of the disclosure should be determined by the scope of the claims.
Claims (8)
1. The testing device of the straight-stroke electric actuating mechanism is characterized by comprising a frame body, a hydraulic cylinder, a hydraulic loading system and a controller,
an electric actuating mechanism is arranged above the frame body, the hydraulic cylinder is positioned in the frame body, and a pull pressure sensor is connected between an output shaft of the electric actuating mechanism and a piston rod of the hydraulic cylinder;
the hydraulic loading system is connected with the hydraulic cylinder through a hydraulic oil pipe;
the electric actuating mechanism, the pull pressure sensor and the hydraulic loading system are connected with the controller.
2. The testing device of the straight-stroke electric actuator according to claim 1, wherein the hydraulic loading system comprises a pressurized oil tank, a gear pump, a variable frequency motor, a first electromagnetic valve, a hydraulic rectifier bridge, a one-way throttle valve, a hydraulic control one-way valve, an electromagnetic directional valve, a second electromagnetic valve and a proportional overflow valve,
the pressurization oil tank, the gear pump, the first electromagnetic valve, the hydraulic rectifier bridge and one end of the hydraulic cylinder are sequentially connected, the gear pump is connected with the variable frequency motor, and an oil path between the hydraulic rectifier bridge and one end of the hydraulic cylinder is connected with the one-way throttle valve;
the other end of the hydraulic cylinder, the one-way throttle valve, the hydraulic control one-way valve, the electromagnetic directional valve, the electromagnetic valve II, the proportional overflow valve and the pressurized oil tank are sequentially connected, and an oil path between the other end of the hydraulic cylinder and the one-way throttle valve is connected with a hydraulic rectifier bridge;
the hydraulic rectifier bridge is connected with an electromagnetic directional valve, an electromagnetic valve II and a proportional overflow valve through an oil way,
and an oil path between the gear pump and the first electromagnetic valve is connected with the electromagnetic directional valve, the second electromagnetic valve and the proportional overflow valve.
3. The testing device for the straight-stroke electric actuating mechanism according to claim 2, wherein the hydraulic rectifier bridge comprises a first one-way valve, a second one-way valve, a third one-way valve and a fourth one-way valve which are sequentially connected and annularly arranged, and the directions of every two adjacent one-way valves are opposite.
4. The straight-stroke electric actuator testing device as claimed in any one of claims 1 to 3, further comprising a temperature sensor, a liquid level alarm and a flap level gauge, wherein the temperature sensor, the liquid level alarm and the flap level gauge are respectively connected with a pressurized oil tank.
5. The straight-stroke electric actuator testing device according to claim 4, further comprising an air-cooled cooler for cooling an oil path between the proportional relief valve and the pressurized oil tank.
6. The straight-stroke electric actuator testing device as claimed in claim 2, further comprising a pressure sensor connected to an oil path between the gear pump and the first solenoid valve.
7. The testing device for the straight-stroke electric actuator according to claim 2, further comprising a first filter and a second filter, wherein the first filter is connected between the gear pump and the first electromagnetic valve, and the second filter is connected between the proportional relief valve and the pressurized oil tank.
8. The linear electric actuator testing device according to claim 1, further comprising a grating ruler, wherein the grating ruler is arranged on one side of the electric actuator, and the grating ruler is connected with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221140290.6U CN217177005U (en) | 2022-05-13 | 2022-05-13 | Testing device for straight-stroke electric actuating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221140290.6U CN217177005U (en) | 2022-05-13 | 2022-05-13 | Testing device for straight-stroke electric actuating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217177005U true CN217177005U (en) | 2022-08-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221140290.6U Active CN217177005U (en) | 2022-05-13 | 2022-05-13 | Testing device for straight-stroke electric actuating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217177005U (en) |
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2022
- 2022-05-13 CN CN202221140290.6U patent/CN217177005U/en active Active
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