CN109296594A - A kind of test macro of high-power tilt cylinder motor - Google Patents
A kind of test macro of high-power tilt cylinder motor Download PDFInfo
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- CN109296594A CN109296594A CN201811031164.5A CN201811031164A CN109296594A CN 109296594 A CN109296594 A CN 109296594A CN 201811031164 A CN201811031164 A CN 201811031164A CN 109296594 A CN109296594 A CN 109296594A
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- module
- tilt cylinder
- oil
- motor
- cylinder motor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
- F15B19/007—Simulation or modelling
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Engineering & Computer Science (AREA)
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- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a kind of test macro of high-power tilt cylinder motor, the fuel tank module (I) with warning and temperature control, Oil pump electrical machinery group module (II) the oil circuit commutation of fuel feeding and back pressure loading module (III), tilt cylinder motor detecting rack module (IV), cell pressure table data acquisition transmission module, electric-control system and computer data storage processing module are specifically included that；This system realizes motor load simulation by high-power magnetic powder brake 25；Proportional loading valve in oil circuit commutation and back pressure loading module (III) can realize motor back pressure simulation test；Electronic control module individually start and stop Oil pump electrical machinery group 12.1,12.2,12.3 can realize the motor detectings of different displacements；Fuel tank module (I) with warning and temperature control can control oil temperature by heater 6 and cooler 8；Test temperature, pressure, torque, revolving speed can be transferred to data collecting card by sensor, handled by computer data acquiring and shown automatic discrimination properties of product by the human-computer interaction interface of labivew software editing.
Description
Technical field
The present invention relates to the technical fields of hydraulic test system, especially relate to a kind of test macro of high-power tilt cylinder motor.
Background technique
Tilt cylinder motor is a kind of end face oil distributing without link-type crankshaft low-speed big torque motor.It applied widely, can be with
Injection molding machine, light industry and machinery, engineering machinery, metallurgical equipment, petroleum, coal mine, geological prospecting, railway, ship, environmental protection, lathe,
It is applied in the Hydraulic Power Transmission System of the various machinery such as agricultural machinery.Delivery test is the important test item of tilt cylinder motor, test item packet
Contain:
1. unloaded discharge capacity verification test: under rated speed, unloaded pressure condition, measuring displacement value；
2. volumetric efficiency is tested: under rated speed, rated pressure, calculating volumetric efficiency；
3. gross efficiency is tested: under rated speed, rated pressure, the output torque of measuring and calculating measurement motor, actual speed,
Input flow rate, input pressure, amount of leakage calculate gross efficiency；
4. overload test: in rated speed, running 1min with maximum pressure；
5. seal tightness test: during the test, each position of tilt cylinder motor is without leakage.
And existing test macro the degree of automation is low, can not be automatically performed test process, commutation needs replacing pipeline and connects
Mouthful, operator's great work intensity, testing efficiency is low, and test data accurately can not be handled and be stored, due to motor displacement kind
Class is more, and power span needed for testing is big, and when testing small displacement tilt cylinder motor, test macro power dissipation is serious, designs thus
A kind of test macro of high-power tilt cylinder motor.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of test macros of high-power tilt cylinder motor.
To achieve the above object, the present invention provides a kind of technical solution below: test system of high-power tilt cylinder motor
System, including the fuel tank module (I) with warning and temperature control, the Oil pump electrical machinery group module (II) of fuel feeding, oil circuit commutation and back pressure
Loading module (III), tilt cylinder motor detecting rack module (IV), cell pressure table data acquire transmission module, electric-control system
Processing module is stored with computer data, the fuel tank module (I) with warning and temperature control passes through heater and cooling
Device can control system oil temperature；Fuel tank of Oil pump electrical machinery group module (II) middle transition with warning and temperature control of the fuel feeding
Hydraulic oil in module (I) is transmitted to oil circuit commutation and back pressure loading module (III), and the electric-control system can individual start and stop oil
The motor detecting of pump motor group realization different displacements；Proportional loading valve in the oil circuit commutation and back pressure loading module (III)
Motor back pressure simulation test can be achieved；The oil circuit commutation and back pressure loading module (III) are delivered to the hydraulic oil in system
Tilt cylinder motor detecting rack module (IV), magnetic powder brake that the tilt cylinder motor detecting rack module (IV) includes are realized
Motor load simulation；Sensor in the cell pressure table data acquisition transmission module can be by test temperature, pressure, torsion
Square, revolving speed are transferred to data collecting card, and pass through computer data acquiring by the computer data storage processing module
Processing, convenient for passing through the human-computer interaction interface automatic discrimination properties of product of labivew software editing.
Preferably, the fuel tank module (I) with warning and temperature control be by seal fuel tank, liquid level display, put
Oil valve, air cleaner, liquid level alarm, heater, filter, cooler, return check valve composition.
Preferably, the Oil pump electrical machinery group module (II) of the fuel feeding be by shut-off valve, flexible joint, variable high pressure oil
Pump motor group composition.
Preferably, the oil circuit commutation and back pressure loading module (III) are by the pilot operated compound relief valve with reversal valve, system
Flowmeter, proportional loading counterbalance valve, big orifice reversal valve composition.
Preferably, the tilt cylinder motor detecting rack module (IV) is by quick coupling, test motor, shaft coupling, revolving speed
Torque sensor, magnetic powder brake composition.
Preferably, the cell pressure table data acquisition transmission module includes pressure gauge, pressure sensor.
Preferably, the electric-control system can independent start and stop Oil pump electrical machinery group, control reversal valve change motor rotation direction,
It controls proportional loading valve and simulates different back pressures, control magnetic powder brake simulation motor load.
Preferably, the computer data storage processing module is using area of computer aided observation and control technology, sensor transmissions
Data current signal handled by data collecting card be converted into digital signal, handle through computer and compiled by labivew software
The human-computer interaction interface of journey is shown, automatic to determine properties of product and storing data.
Be using the beneficial effect of the technical program: automation inspection may be implemented in this test macro high degree of automation
It surveys, is facilitated in oil circuit commutation and back pressure loading module (III) by electric-control system switching operation, be not required to operator's manual reverse of direction work
Industry is conducive to mitigate operator's working strength, and testing efficiency is high.
Detailed description of the invention
Fig. 1 is a kind of system schematic of the test macro of high-power tilt cylinder motor of the present invention.
Wherein: the fuel tank module (I) with warning and temperature control
The Oil pump electrical machinery group module (II) of fuel feeding
Oil circuit commutation and back pressure loading module (III)
Tilt cylinder motor detecting rack module (IV)
Oil circuit inverting module (V)
Tilt cylinder motor detecting rack (VI)
1 liquid level display 2 of fuel tank
3 air cleaner 4 of fuel outlet valve
5 heater 6 of liquid level alarm
7 radiator 8 of filter
9 copper ball valve 10.1 of return check valve
10.2 copper ball valve 10.3 of copper ball valve
11.1 flexible joint 11.2 of flexible joint
11.3 Oil pump electrical machinery group 12.1 of flexible joint
12.2 Oil pump electrical machinery group 12.3 of Oil pump electrical machinery group
13.1 check valve 13.2 of check valve
Pilot operated compound relief valve 14 of the check valve 13.3 with reversal valve
15.1 pressure gauge 15.2 of pressure gauge
15.3 pressure sensor 16.1 of pressure gauge
16.2 pressure sensor 16.3 of pressure sensor
17 proportional loading valve 18 of flow system flow meter
19 quick coupling 20.1 of reversal valve
20.1 quick coupling 20.2 of quick coupling
Motor 21 is tested in quick coupling 20.3
22.1 shaft coupling 22.2 of shaft coupling
23 magnetic powder brake 24 of torque and speed sensors
Electromagnetic coil 1DT electromagnetic coil 2DT
Electromagnetic coil 3DT electromagnetic coil 4DT.
Specific embodiment
The preferred embodiment that the invention will now be described in detail with reference to the accompanying drawings.
As shown in Figure 1, a specific embodiment of the invention: a kind of test macro of high-power tilt cylinder motor, including band oil
The fuel tank module (I) of position alarm and temperature control, the Oil pump electrical machinery group module (II) of fuel feeding, oil circuit commutation and back pressure loading module
(III), tilt cylinder motor detecting rack module (IV), cell pressure table data acquisition transmission module, electric-control system and computer
Data storage processing module, the fuel tank module (I) with warning and temperature control are controllable by heater 6 and cooler 8
System oil temperature processed, the fuel tank module (I) with warning and temperature control be by seal fuel tank 1, liquid level display 2, drain the oil
Valve 3, air cleaner 4, liquid level alarm 5, heater 6, filter 7, cooler 8, return check valve 9 form.
In fuel tank module (I) of Oil pump electrical machinery group module (II) middle transition with warning and temperature control of the fuel feeding
Hydraulic oil be transmitted to oil circuit commutation and back pressure loading module (III), the Oil pump electrical machinery group module (II) of the fuel feeding be by cut
Only valve 10.1,10.2,10.3, flexible joint 11.1,11.2,11.3, the Oil pump electrical machinery group 12.1,12.2,12.3 of variable high pressure
Composition, the electric-control system individually start and stop Oil pump electrical machinery group 12.1,12.2,12.3 can realize that the motor of different displacements is surveyed
Examination, the electric-control system can independent start and stop Oil pump electrical machinery group, control reversal valve 19 change motor rotation direction, control ratio and add
It carries valve 18 and simulates different back pressures, the control simulation motor load of magnetic powder brake 24.
Proportional loading valve in the oil circuit commutation and back pressure loading module (III) can realize motor back pressure simulation test,
The oil circuit commutation and back pressure loading module (III) are by the pilot operated compound relief valve 14 with reversal valve, flow system flow meter 17.1, ratio
The composition of reversal valve 19 of example load counterbalance valve 18, big orifice；The oil circuit commutation and back pressure loading module (III) are in system
Hydraulic oil is delivered to tilt cylinder motor detecting rack module (IV), the magnetic powder that the tilt cylinder motor detecting rack module (IV) includes
Brake 24 come realize motor load simulate, the tilt cylinder motor detecting rack module (IV) be by quick coupling 20.1,
20.2,20.3, test motor 21, shaft coupling 22.1,22.2, torque and speed sensors 23, the composition of magnetic powder brake 24.
Sensor in cell pressure table data acquisition transmission module can by test temperature, pressure, torque, turn
Speed is transferred to data collecting card, and is handled by the computer data storage processing module by computer data acquiring, just
In the human-computer interaction interface automatic discrimination properties of product for passing through labivew software editing.
The cell pressure table data acquisition transmission module includes pressure gauge 15.1,15.2,15.3, pressure sensor
16.1,16.2,16.3, the computer data storage processing module is using area of computer aided observation and control technology, sensor transmissions
Data current signal handled by data collecting card be converted into digital signal, handle through computer and compiled by labivew software
The human-computer interaction interface of journey is shown, automatic to determine properties of product and storing data.
The embodiment of specific items test item are as follows:
(1) factory test oil temperature need to be controlled at 50 ± 4 DEG C when oil temperature is lower than, and when temperature is lower than 46 DEG C, heater 6 is opened
It opens；When temperature reaches 46 DEG C, heater is closed, and tilt cylinder motor detecting starts, and friction generates heat for tilt cylinder motor in test process
Amount temperature is gradually increasing；When more than 54 DEG C, cooler 8 is opened, and cooler cools down the hydraulic oil passed through, until oil temperature is to 46
DEG C when close；It is constant within the scope of 50 ± 4 DEG C that test condition needs to test oil temperature.This process is by area of computer aided observing and controlling system
System is completed, and is input a signal into PLC by the self-contained temperature detect switch (TDS) of heater 6 and cooler 8, is controlled heater 6 and cooling
Device 8 realizes the automatic control of oil temperature.
(2) there are many discharge capacity type of tilt cylinder motor, and from 100mL/r to 3000mL/r, span is big, therefore test specified
Flow need to meet 0-300L variation, if as soon as selecting an Oil pump electrical machinery group, corresponding power is very big, and test huge discharge can expire
Sufficient performance requirement, but when test small displacement, power serious waste, so devising 3 both can work independently or close
The Oil pump electrical machinery group 12.1,12.2,12.3 of stream, wherein Oil pump electrical machinery group 12.1 can get different tests using high pressure variable pump
The demand of flow；When testing tilt cylinder motor is small displacement, when required flow is less than 100L, 12.1 Oil pump electrical machineries are individually opened
Group；So that the electromagnetism 1DT of the pilot operated compound relief valve 14 with reversal valve is powered, the complete off-load of overflow valve, hydraulic oil can no pressure it is logical
It crosses, electromagnet 2DT, the 3DT on 19 both sides of reversal valve keep power failure state, and reversal valve keeps middle position, P mouthfuls of cut-offs；It opens
Oil pump electrical machinery group 12.1, hydraulic oil pass through copper ball valve 10.1, flexible joint 11.1, Oil pump electrical machinery group 12.1 by fuel tank, excessively unidirectionally
Valve 13.1 reaches flowmeter 17.1, and by overflow valve 14, oil return box, flowmeter 17.1 shows that numerical value is institute for stream at this time
Amount obtains flow needed for accurately testing by regulated variable pump 12.1；The flow needed for surveying tilt cylinder motor displacement is in 100L
It when between 200L, while opening Oil pump electrical machinery group 12.1,12.2 and collaborating fuel feeding, adjusting 12.1 can be obtained accurate flow；When
Flow needed for testing opens Oil pump electrical machinery group 12.1,12.2,12.3 and collaborates fuel feeding in 200L to 300L, adjusts 12.1
It can be obtained accurate flow.
(3) surge pressure for testing tilt cylinder motor reaches 30MPa, therefore 14 pressure of overflow valve need to be set in 30MPa.It cuts
The power supply of the electromagnetism 1DT of the disconnected pilot operated compound relief valve 14 with reversal valve, overflow valve off-load are closed, the electromagnetism on 19 both sides of reversal valve
Iron 2DT, 3DT keep power failure state, and reversal valve keeps middle position, P mouthfuls of cut-offs；Start oil pump 12.1, hydraulic oil is by fuel tank
By copper ball valve 10.1, flexible joint 11.1, Oil pump electrical machinery group 12.1, check valve 13.1 is crossed, flowmeter 17.1 is reached, passes through
Overflow valve 14, regulation relief valve 14 can set the pressure of overflow valve as 30MPa, and device numerical value passes through pressure gauge and 15.1 Hes
Pressure sensor 16.1 obtains test pressure, and wherein the number of pressure sensor 16.1 squares can be transmitted to after computer is computed analysis,
Monitoring platform is carried in Labview software, test data is intuitively shown.
(4) pass through the operation of above-mentioned (1), (2), (3), so that it may obtain temperature, flow, pressure required for testing etc.
Condition can start the test of tilt cylinder motor.
(5) unloaded discharge capacity verifying: test tilt cylinder motor 21 on testboard bay, connect quick coupling 20.1,20.2,
20.3,19 left end 2DT of reversal valve obtain electric, and reversal valve switches to left position and sets, and test motor cycles oil circuit is connected, and are arranged according to motor
Amount selection starts several oil pumps, and oil liquid is through flowmeter 17.1 to reversal valve 19, quick-release connector 20.1 after oil pump feed, until test
Tilt cylinder motor left oil port, motor main story, hydraulic oil are discharged from right side hydraulic fluid port, arrive reversal valve 19 through quick-release connector 20.3, pass through ratio
Example 19 oil return box of charge valve；The internal leakage of tilt cylinder motor is by quick coupling 20.2 to 17.2 oil return box of flowmeter；Test pendulum
Cylinder motor drives the rotor turn of magnetic powder brake 24 by shaft coupling 22.1,22.2 and torque and speed sensors 23 after rotating forward
Dynamic, tilt cylinder motor is in light condition.At this time 1. computer can verify unloaded discharge capacity according to calculation formula.
The verifying of idle discharge amount:
Input flow rate flowmeter 17.1 when qi zero load pressure measures numerical value
Revolving speed torque and speed sensors 23 when ni zero load pressure measure numerical value
(6) volumetric efficiency and gross efficiency verifying: magnetic powders brake electric current is adjusted after the completion of unloaded discharge capacity verifying, is made in electric current
Rotor can be held tightly with lower 24 inside magnetic powder of magnetic powder brake, and frictional resistance increases, the inlet pressure and output torque of tilt cylinder motor
Rise；When inlet pressure reaches tilt cylinder rated motor pressure, tilt cylinder motor is in the work shape of rated speed and rated pressure
Under state, at this time 2. computer can calculate volumetric efficiency according to formula, 3. calculate gross efficiency according to formula.
Volumetric efficiency:
Input flow rate flowmeter 17.1 under qe rated pressure measures numerical value
Rotational speed and torque speed probe 23 under ne rated pressure measures numerical value
Gross efficiency:
T output torque value torque rotary speed sensor 23 measures numerical value
P1 inlet pressure is measured when rotating forward by 16.2, and reversion is measured by 16.3
P2 outlet pressure is measured when rotating forward by 16.3, and reversion is measured by 16.2
Leakage rate flowmeter 17.2 under qd rated pressure measures numerical value
(7) overload test: continue to increase magnetic powder brake electric current, the output torque and input pressure of tilt cylinder motor continue
Rise, when pressure reaches the maximum pressure of tilt cylinder motor, this state is kept to run 1min, motor can run well.
(8) back pressure tests leakproofness: after the completion of overload test, closing magnetic powder brake electric current, magnetic powders brake torque disappears
It losing, motor is in light condition, adjusts the electric current of the coil 4DT of proportional loading valve 18 at this time, and charge valve realizes load function,
The outlet pressure p2 of tilt cylinder motor rises, and inlet pressure p1 also rises with it, and when pressure reaches rated pressure, observes tilt cylinder
The sealing performance of motor；After 1min, 4DT power loss, proportional loading valve is closed, and motor is in light condition, and main story test is completed.
(9) commutation test: 19 left end 3DT of reversal valve obtains electric, and reversal valve switches to right position, tests motor cycles oil circuit
It connects, oil liquid is through flowmeter 17.1 to reversal valve 19, quick-release connector 20.3, until tilt cylinder motor right oil port is tested, motor anti-pass,
Hydraulic oil is discharged from left side hydraulic fluid port, arrives reversal valve 19 through quick-release connector 20.1, passes through 19 oil return box of proportional loading valve；Tilt cylinder horse
The internal leakage reached is by quick coupling 20.2 to 17.2 oil return box of flowmeter；Motor, which is surveyed, by 5 to 8 steps at this time inverts performance,
Positive and negative rotation of motor performance is all qualified, and tilt cylinder motor detecting is qualified.
(10) the multiple sensors of test process convert digital signal by calculating for current signal by data collecting card
Machine operation calculates analysis, and the interface display for the human-computer interaction established by Labview software can simultaneously determine according to sensing data
It whether qualified tests motor performance, realizes automatic detection.
Using the technical program, this test macro high degree of automation may be implemented automatic detection, oil circuit commutation and
Facilitated in back pressure loading module (III) by electric-control system switching operation, is not required to operator's manual reverse of direction operation, is conducive to mitigate
Operator's working strength, and testing efficiency is high.
What has been described above is only a preferred embodiment of the present invention, it is noted that for those of ordinary skill in the art
For, without departing from the concept of the premise of the invention, various modifications and improvements can be made, these belong to this hair
Bright protection scope.
Claims (8)
1. a kind of test macro of high-power tilt cylinder motor, the oil including the fuel tank module (I) with warning and temperature control, fuel feeding
Pump motor group module (II), oil circuit commutation and back pressure loading module (III), tilt cylinder motor detecting rack module (IV), sensor pressure
Power table data acquire transmission module, electric-control system and computer data and store processing module, which is characterized in that the band oil level report
Alert and temperature control fuel tank module (I) can control system oil temperature by heater and cooler；The Oil pump electrical machinery group mould of the fuel feeding
Hydraulic oil in fuel tank module (I) of block (II) middle transition with warning and temperature control is transmitted to oil circuit commutation and back pressure load
Module (III), the electric-control system can individually start and stop Oil pump electrical machinery group realize different displacements motor detecting；The oil circuit changes
To and back pressure loading module (III) in proportional loading valve can realize motor back pressure simulation test；The oil circuit commutation and back pressure add
It carries module (III) and the hydraulic oil in system is delivered to tilt cylinder motor detecting rack module (IV), the tilt cylinder motor detecting rack
The magnetic powder brake that module (IV) includes realize motor load simulate；In the cell pressure table data acquisition transmission module
Sensor test temperature, pressure, torque, revolving speed can be transferred to data collecting card, and stored by the computer data
Processing module is handled by computer data acquiring, convenient for passing through the human-computer interaction interface automatic discrimination of labivew software editing
Properties of product.
2. a kind of test macro of high-power tilt cylinder motor according to claim 1, which is characterized in that the band oil level report
Alert and temperature control fuel tank module (I) be by seal fuel tank, liquid level display, fuel outlet valve, air cleaner, liquid level alarm,
Heater, filter, cooler, oil return unidirectionally form.
3. a kind of test macro of high-power tilt cylinder motor according to claim 1, which is characterized in that the oil of the fuel feeding
Pump motor group module (II) is made of the Oil pump electrical machinery group of shut-off valve, flexible joint, variable high pressure.
4. a kind of test macro of high-power tilt cylinder motor according to claim 1, which is characterized in that the oil circuit commutation
And back pressure loading module (III) is by the pilot operated compound relief valve with reversal valve, flow system flow meter, proportional loading counterbalance valve, big orifice
Reversal valve composition.
5. a kind of test macro of high-power tilt cylinder motor according to claim 1, which is characterized in that the tilt cylinder motor
Testboard bay module (IV) is made of quick coupling, test motor, shaft coupling, torque and speed sensors, magnetic powder brake.
6. a kind of test macro of high-power tilt cylinder motor according to claim 1, which is characterized in that the sensor pressure
It includes pressure gauge, pressure sensor that power table data, which acquire transmission module,.
7. a kind of test macro of high-power tilt cylinder motor according to claim 1, which is characterized in that the electric-control system
It can independent start and stop Oil pump electrical machinery group, control reversal valve change motor rotation direction, the different back pressures of control proportional loading valve simulation, control
Magnetic powder brake processed simulates motor load.
8. a kind of test macro of high-power tilt cylinder motor according to claim 1, which is characterized in that the computer number
It is using area of computer aided observation and control technology according to storage processing module, the data of sensor transmissions handle electric current by data collecting card
Signal is converted into digital signal, handles through computer and is shown by the human-computer interaction interface of labivew software programming, automatic to determine
Properties of product and storing data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811031164.5A CN109296594B (en) | 2018-09-05 | 2018-09-05 | Test system of high-power swing cylinder motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811031164.5A CN109296594B (en) | 2018-09-05 | 2018-09-05 | Test system of high-power swing cylinder motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109296594A true CN109296594A (en) | 2019-02-01 |
| CN109296594B CN109296594B (en) | 2023-08-15 |
Family
ID=65166379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811031164.5A Active CN109296594B (en) | 2018-09-05 | 2018-09-05 | Test system of high-power swing cylinder motor |
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| Country | Link |
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| CN (1) | CN109296594B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112798953A (en) * | 2020-12-29 | 2021-05-14 | 宁波圣龙智能汽车系统有限公司 | Servo motor is to dragging test platform |
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| US4129037A (en) * | 1977-03-21 | 1978-12-12 | Toalson David C | Apparatus for wear detection |
| US20100050759A1 (en) * | 2008-09-04 | 2010-03-04 | Vickio Jr Louis P | Dynamometer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112798953A (en) * | 2020-12-29 | 2021-05-14 | 宁波圣龙智能汽车系统有限公司 | Servo motor is to dragging test platform |
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| Publication number | Publication date |
|---|---|
| CN109296594B (en) | 2023-08-15 |
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