CN207195360U - A kind of excavator Hydraulic Elements durability multi-function test stand - Google Patents
A kind of excavator Hydraulic Elements durability multi-function test stand Download PDFInfo
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- CN207195360U CN207195360U CN201720955181.2U CN201720955181U CN207195360U CN 207195360 U CN207195360 U CN 207195360U CN 201720955181 U CN201720955181 U CN 201720955181U CN 207195360 U CN207195360 U CN 207195360U
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Abstract
The utility model discloses a kind of excavator Hydraulic Elements durability multi-function test stand, is related to engineering mechanical device technical field, and excavator Hydraulic Elements durability multi-function test stand includes：Test platform, hydraulic oil source unit, variable frequency drive unit, hydraulic loaded unit, auxiliary oil sources unit, motor impact test-bed, motor performance testing stand, Measurement and Control System.By using above-mentioned technical proposal, testing stand in the utility model uses modularized design, different pilot systems can be built according to the different flexible and efficient combinations of content of the test, and single action or composite move endurancing can be carried out to subject element for the actual condition and real load characteristic of excavator.Whole testing stand has the advantages that floor space is small, powerful, flexible and efficient.
Description
Technical field
Engineering mechanical device technical field is the utility model is related to, it is durable more particularly to a kind of excavator Hydraulic Elements
Property multi-function test stand.
Background technology
In recent years, China's engineering machinery is developed rapidly with Hydraulic Elements, but excavator hydraulic pump, banked direction control valves
Import is still relied on for a long time with the high-end Hydraulic Elements such as motor.Although numerous domestic manufacturer input substantial contribution carries out Related product
Exploitation, but its product installation reliability is all unable to reach excavator application request.Among these one it is important the reason for just
Be to Hydraulic Elements carry out endurancing when, it is independent to each still using national General hydraulic component test standard
Element carries out single Impacting endurance experiment, without carrying out multicomponent joint, compound according to excavator actual working characteristics
The durability impact tests such as action.Hydraulic pump, banked direction control valves, the Test condition of hydraulic motor differ with excavator actual use operating mode
It is larger, the actual use problem of Hydraulic Elements can not be found out, durability index loses contact with reality applying working condition, can not be really anti-
The situation of Hydraulic Elements and existing technical problem should be gone out to be tested.
Utility model content
The technical problems to be solved in the utility model is：A kind of excavator Hydraulic Elements durability compbined test is provided
Platform, mainly for the endurancing of the Hydraulic Elements such as excavator hydraulic pump, banked direction control valves and hydraulic motor, completely according to excavation
Hydraulic Elements are carried out Loading Control by the working characteristics of machine real load feature and Hydraulic Elements and endurancing is examined.Should
Testing stand can both carry out single element experiment, again can be with multicomponent Combined Trials；Both single movement experiment can be carried out, again may be used
To carry out composite move experiment, make the Test condition more closing to reality operating mode of subject element.The testing stand and can is to quilt simultaneously
Try Hydraulic Elements and carry out key performance experiment, to being judged by the failure state of test specimen, effectively improve test efficiency.
The utility model is adopted the technical scheme that to solve technical problem present in known technology：
A kind of excavator Hydraulic Elements durability multi-function test stand, is comprised at least：Test platform and flat positioned at experiment
On platform：
Hydraulic oil source unit, the hydraulic oil source unit include inlet port (1-1), temperature sensor (1-2), oil return opening
(1-3), liquid level sensor (1-4), hydraulic oil container (1-5), radiator (1-6), oil circulating pump group of motors (1-7), oil suction filtering
Device (1-8), heater (1-9), recursive filter (1-10), mounting platform (1-11), Oil-source control cabinet (1-12)；The hydraulic pressure
Fuel tank (1-5), oil absorption filter (1-8), oil circulating pump group of motors (1-7), radiator (1-6), heater (1-9), it is circulated throughout
Filter (1-10), hydraulic oil container (1-5) are sequentially connected composition circulation loop by oil circuit；For detecting in hydraulic oil container (1-5)
The temperature sensor (1-2) of oil liquid temperature electrically connects with the I/O ports of Oil-source control cabinet (1-12)；For detecting hydraulic oil container
The liquid level sensor (1-4) of (1-5) inner fluid height electrically connects with the I/O ports of Oil-source control cabinet (1-12)；
Variable frequency drive unit, the variable frequency drive unit include driver element mounting seat (2-1) and are fixed on driving
Variable-frequency motor (2-2) in unit mounting seat (2-1), driving shaft coupling (2-3), hydraulic pump torque speed sensor (2-4),
Hydraulic pump fixed support (2-5), the variable-frequency motor (2-2), hydraulic pump torque speed sensor (2-4), hydraulic pump fix branch
Frame (2-5) is by driving shaft coupling (2-3) to connect；The hydraulic pump fixed support (2-5) is used to install fixed different subject
Hydraulic pump；
Hydraulic loaded unit, the hydraulic loaded unit include load test cabinet (3-1) and installed in load test cabinets
Internal Loading Control unit (3-2), oil inlet and oil return interface (3-3), Loading Control valve group (3-4), pilot control oil interface (3-
5) oil circuit interface (3-6), industrial computer (3-7), are tested；The Loading Control unit (3-2) passes through electric wiring and Loading Control
Valve group (3-4) is connected；The industrial computer (3-7) is connected with Loading Control unit (3-2)；The oil inlet and oil return interface (3-3), guide
Oily interface (3-5), experiment oil circuit interface (3-6) is controlled to be connected by oil circuit with Loading Control valve group (3-4)；
Oil sources unit is aided in, the auxiliary oil sources unit includes auxiliary oil sources mounting seat (4-7) and is fixed on auxiliary
Low pressure oil supply oil circuit (4-1), fuel sucking pipe oil circuit (4-2), the first low pressure fuel pump group of motors (4- in oil sources mounting seat (4-7)
3), the second low pressure fuel pump group of motors (4-4), guide's oil feeding line (4-5), guide's Oil pump electrical machinery group (4-6), auxiliary Oil-source control
Cabinet (4-8)；The fuel sucking pipe oil circuit (4-2) respectively with the first low pressure fuel pump group of motors (4-3), the second low pressure fuel pump group of motors
The inlet port connection of (4-4), guide's Oil pump electrical machinery group (4-6)；The low pressure oil supply oil circuit (4-1) and guide's oil feeding line (4-
5) it is equipped with the oil circuit interface being connected with hydraulic loaded unit；The I/O ports of the auxiliary Oil-source control cabinet (3-8) are respectively with the
One low pressure fuel pump group of motors (4-3), the second low pressure fuel pump group of motors (4-4), guide's Oil pump electrical machinery group (4-6) connection；
Motor impact test-bed, the motor impact test-bed include motor impact mounting seat (5-2), positioned at horse
Up to the flywheel mounting bracket (5-1) in impact mounting seat (5-2), inertial flywheel group (5-3), motor mounting bracket (5-4) and
It is tested motor (5-5)；The inertial flywheel group (5-3) be installed on the first mounting bracket (5-1) and motor mounting bracket (5-4) it
Between；The subject motor (5-5) is arranged in motor mounting bracket (5-4)；
Motor performance test-bed, the motor performance test-bed include motor performance mounting seat (6-5), positioned at horse
Up to the loading motor (6-1) in performance mounting seat (6-5), loading motor mounting bracket (6-2), motor shaft coupling (6-3), horse
Up to torque speed sensor (6-4), subject motor mounting bracket (6-6), subject motor (6-7)；The loading motor installation branch
Frame (6-2), subject motor mounting bracket (6-6) are fixedly connected with motor performance mounting seat (6-5), the motor torsional moment rotating speed
Sensor (6-4) is joined between loading motor mounting bracket (6-2) and subject motor mounting bracket (6-6) by motor
Axle device (6-3) is connected with loading motor mounting bracket (6-2) and subject motor mounting bracket (6-6).
Further：Also include being used for detecting and control hydraulic oil source unit, be variable frequency drive unit, hydraulic loaded unit, auxiliary
Help oil sources unit, motor impact test-bed, the Measurement and Control System of motor performance test-bed action；The measurement control system
System includes electric control system, data collecting system and central control system；Wherein：The electric control system include electric elements,
Frequency converter, programmable controller etc., the electric control system respectively with Oil-source control cabinet (1-12), variable-frequency motor (2-2),
Aid in Oil-source control cabinet (4-8) electrical connection；The data collecting system includes industrial computer (3-7), the data being sequentially connected electrically
Capture card；The data collecting card respectively with hydraulic pump torque speed sensor (2-4), motor torsional moment speed probe (6-4),
And all kinds of pressure, flow and temperature sensor electrical connection inside hydraulic loaded unit；The central control system include host computer,
Human-computer interaction device, display；The host computer is electrically connected with programmable controller, industrial computer (3-7) respectively by Ethernet.
Further：The Loading Control valve group (3-4) of the hydraulic loaded unit includes A/B oil circuits loading valve group, loading
Flow measurement valve group, commutation flow measurement valve group and pilot control valve group；The A/B oil circuits loading valve group has two-way, and A/B oil circuit charge valves lead to
The mode for crossing hydraulic damping loads to complete the shock simulation of banked direction control valves or hydraulic pump；The loading flow measurement valve group is hydraulic pump
Performance test provides hydraulic damping loading and flow measurement while provides Loading Control to load motor and be banked direction control valves
Can experiment offer controllable pressure oil sources；The commutation flow measurement valve group is provided and changed to be tested the endurancing of motor and performance test
To control and flow detection；The pilot control valve group is banked direction control valves, motor provides pilot control oil sources；The Loading Control valve
There are the pressure for testing inspection, flow and temperature sensor in group (3-4).
Further：The subject Hydraulic Elements include the one or more in hydraulic pump, banked direction control valves, hydraulic motor.
The utility model has the advantages and positive effects of：
By using above-mentioned technical proposal, the utility model is directed to the actual condition and real load characteristic of excavator, adopted
Durability impact test is carried out to subject element with different payload sequence combinations, and subject element is carried out during experiment
Necessary performance checking experiment, judgment component performance state.Testing stand uses modularized design, can be according to subjects not
Same flexible combination, it is durable that hydraulic pump, hydraulic pump+banked direction control valves, hydraulic motor, hydraulic pump+banked direction control valves+hydraulic motor pump are carried out respectively
Property impact test and key performance experiment；The testing stand is completely according to the actual condition of excavator and real load characteristic, to liquid
Element is pressed to carry out endurancing, the test effect closing to reality working characteristics of Hydraulic Elements.The testing stand is set using modularization
Meter, floor space is small, powerful, efficiency high.Pilot system can be built according to the different flexible and efficient combinations of content of the test,
And endurancing can be carried out for multiple Hydraulic Elements simultaneously.
Brief description of the drawings：
Fig. 1 is the structure chart of hydraulic oil source unit in the utility model preferred embodiment；
Fig. 2 is the structure chart of variable frequency drive unit in the utility model preferred embodiment；
Fig. 3 is the front view of hydraulic loaded unit in the utility model preferred embodiment；
Fig. 4 is the left view of hydraulic loaded unit in the utility model preferred embodiment；
Fig. 5 is the structure chart that oil sources unit is aided in the utility model preferred embodiment；
Fig. 6 is the structure chart of motor impact test-bed in the utility model preferred embodiment；
Fig. 7 is the structure chart of motor performance test-bed in the utility model preferred embodiment；
Fig. 8 is test-bed for pump modular composition in the utility model preferred embodiment；
Fig. 9 is banked direction control valves tentative module combining structure in the utility model preferred embodiment；
Figure 10 is motor tentative module combining structure in the utility model preferred embodiment；
Figure 11 is hydraulic pump and banked direction control valves tentative module combining structure in the utility model preferred embodiment；
Figure 12 is hydraulic pump and banked direction control valves and motor tentative module combining structure in the utility model preferred embodiment；
Wherein：1-1, inlet port；1-2 temperature sensors；1-3 oil return openings；1-4, liquid level sensor；1-5, hydraulic oil container；
1-6, radiator；1-7, oil circulating pump group of motors；1-8, oil absorption filter；1-9, heater；1-10, recursive filter；1-11、
Mounting platform；1-12, Oil-source control cabinet；2-1, driver element mounting seat；2-2, variable-frequency motor；2-3, driving shaft coupling；2-
4th, hydraulic pump torque speed sensor；2-5, hydraulic pump fixed support；3-1, load test cabinet；3-2 Loading Control units；3-3、
Oil inlet and oil return interface；3-4, Loading Control valve group；3-5, pilot control oil interface；3-6, experiment oil circuit interface；3-7, industrial computer；4-
1st, low pressure oil supply oil circuit；4-2, fuel sucking pipe oil circuit；4-3, the first low pressure fuel pump group of motors；4-4, the second low pressure fuel pump group of motors；
4-5, guide's oil feeding line；4-6, guide's Oil pump electrical machinery group；4-7, auxiliary oil sources mounting seat；4-8, auxiliary Oil-source control cabinet；
5-1, flywheel mounting bracket；5-2, motor impact mounting seat；5-3, inertial flywheel group；5-4, motor mounting bracket；5-5, quilt
Try motor；6-1, loading motor；6-2, loading motor mounting bracket；6-3, motor shaft coupling；6-4, motor torsional moment revolution speed sensing
Device；6-5, motor performance mounting seat；6-6, subject motor mounting bracket；6-7, subject motor.
Embodiment
For utility model content, feature and effect of the present utility model can be further appreciated that, following examples are hereby enumerated, and
Accompanying drawing is coordinated to describe in detail as follows：
Refer to Fig. 1 to Figure 12, a kind of excavator Hydraulic Elements durability multi-function test stand, including：
Test platform and on test platform：
Hydraulic oil source unit, the hydraulic oil source unit include inlet port 1-1, temperature sensor 1-2, oil return opening 1-3, liquid
Level sensor 1-4, hydraulic oil container 1-5, radiator 1-6, oil circulating pump group of motors 1-7, oil absorption filter 1-8, heater 1-9,
Recursive filter 1-10, mounting platform 1-11, Oil-source control cabinet 1-12；The hydraulic oil container 1-5, oil absorption filter 1-8, circulation
Oil pump electrical machinery group 1-7, radiator 1-6, heater 1-9, recursive filter 1-10, hydraulic oil container 1-5 are sequentially connected by oil circuit
Form circulation loop；For the temperature sensor 1-2 and the first switch board 1-12 that detect hydraulic oil container 1-5 inner fluid temperature I/
O port electrically connects；For the liquid level sensor 1-4 and the first switch board 1-12 that detect hydraulic oil container 1-5 inner fluid height I/O
Port electrically connects；
Variable frequency drive unit, the variable frequency drive unit include driver element mounting seat 2-1 and are fixed on driving list
Variable-frequency motor 2-2, driving shaft coupling 2-3, hydraulic pump torque speed sensor 2-4, hydraulic pump on first mounting seat 2-1 are fixed
Support 2-5, the variable-frequency motor 2-2, fluid pump torque speed sensor 2-4, hydraulic pump fixed support 2-5 are by driving shaft coupling
Device 2-3 connections；The hydraulic pump fixed support 2-5 is used to install fixed different subject hydraulic pump.
Hydraulic loaded unit, the hydraulic loaded unit include load test cabinet 3-1 and installed in load test cabinets
Interior Loading Control unit 3-2, oil inlet and oil return interface 3-3, Loading Control valve group 3-4, pilot control oil interface 3-5, experiment oil circuit
Interface 3-6, industrial computer 3-7；The Loading Control unit 3-2 is connected by electric wiring with Loading Control valve group 3-4；The work
Control machine 3-7 is connected with Loading Control unit 3-2；The oil inlet and oil return interface 3-3, pilot control oil interface 3-5, experiment oil circuit interface
3-6 is connected by oil circuit with Loading Control valve group 3-4；
Oil sources unit is aided in, the auxiliary oil sources unit includes auxiliary oil sources mounting seat 4-7 and is fixed on auxiliary oil
Low pressure oil supply oil circuit 4-1, fuel sucking pipe oil circuit 4-2, the first low pressure fuel pump group of motors 4-3 on the mounting seat 4-7 of source, the second low pressure
Oil pump electrical machinery group 4-4, guide's oil feeding line 4-5, guide's Oil pump electrical machinery group 4-6, auxiliary Oil-source control cabinet 4-8；The fuel sucking pipe
Oil circuit 4-2 respectively with the first low pressure fuel pump group of motors 4-3, the second low pressure fuel pump group of motors 4-4, guide's Oil pump electrical machinery group 4-6
Inlet port connects；Low pressure oil supply oil circuit 4-1 and guide's oil feeding line 4-5 is equipped with the oil circuit being connected with hydraulic loaded unit
Interface；The I/O ports of the auxiliary Oil-source control cabinet 3-8 are electric with the first low pressure fuel pump group of motors 4-3, the second low pressure fuel pump respectively
Unit 4-4, guide's Oil pump electrical machinery group 4-6 connections；
Motor impact test-bed, the motor impact test-bed include motor impact mounting seat 5-2, positioned at motor
Flywheel mounting bracket 5-1, inertial flywheel group 5-3, motor mounting bracket 5-4 and the subject motor 5- impacted on mounting seat 5-2
5；The inertial flywheel group 5-3 is installed between the first mounting bracket 5-1 and motor mounting bracket 5-4；The subject motor 5-5
On motor mounting bracket 5-4；
Motor performance test-bed, the motor performance test-bed include motor performance mounting seat 6-5, positioned at motor
Loading motor 6-1, loading motor mounting bracket 6-2, motor shaft coupling 6-3, motor torsional moment rotating speed on performance mounting seat 6-5
Sensor 6-4, subject motor mounting bracket 6-6, subject motor 6-7；The loading motor mounting bracket 6-2, subject motor peace
Dress support 6-6 is fixedly connected with motor performance mounting seat 6-5, and the motor torsional moment speed probe 6-4 is positioned at loading motor
Between mounting bracket (6-2) and subject motor mounting bracket 6-6, and pass through motor shaft coupling 6-3 and loading motor mounting bracket
6-2 connects with subject motor mounting bracket 6-6
Also include be used for detect and control hydraulic oil source unit, variable frequency drive unit, hydraulic loaded unit, auxiliary oil sources list
Member, the Measurement and Control System of motor impact test-bed, motor performance test-bed action；The Measurement and Control System includes electricity
Gas control system, data collecting system and central control system；Wherein：The electric control system include electric elements, frequency converter, can
Programmable controller etc., the electric control system respectively with Oil-source control cabinet 1-12, variable-frequency motor 2-2, auxiliary Oil-source control cabinet
4-8 is electrically connected；The data collecting system includes industrial computer 3-7, the data collecting card being sequentially connected electrically；The data acquisition
Card respectively with inside hydraulic pump torque speed sensor 2-4, motor torsional moment speed probe 6-4 and hydraulic loaded unit
All kinds of pressure, flow and temperature sensor electrical connection；The central control system includes host computer, human-computer interaction device, display；Institute
Host computer is stated to electrically connect with programmable controller, industrial computer 3-7 respectively by Ethernet.
The Loading Control valve group 3-4 of the hydraulic loaded unit includes A/B oil circuits loading valve group, loading flow measurement valve group, changed
To flow measurement valve group and pilot control valve group；The A/B oil circuits loading valve group has two-way, and A/B oil circuit charge valves pass through hydraulic damping
Mode come complete the shock simulation of banked direction control valves or hydraulic pump loading；The loading flow measurement valve group carries for the performance test of hydraulic pump
For hydraulic damping loading and flow measurement while provide Loading Control for loading motor and provided for banked direction control valves performance test
Controllable pressure oil sources；The commutation flow measurement valve group provides commutation control and stream to be tested the endurancing of motor and performance test
Amount detection；The pilot control valve group is banked direction control valves, motor provides pilot control oil sources；Have on the Loading Control valve group 3-4
For the pressure of testing inspection, flow and temperature sensor；
The subject Hydraulic Elements include the one or more in hydraulic pump, banked direction control valves, hydraulic motor.
The test method of a kind of excavator Hydraulic Elements durability multi-function test stand, including at least following steps：
Step 101, the test needs according to Hydraulic Elements, select hydraulic oil source unit, variable frequency drive unit, hydraulic loaded
Unit, auxiliary oil sources unit, motor impact test-bed, some units composition test module in motor performance test-bed
Group；
Step 102, when testing element for it is single when, then by testing element be installed on corresponding to tried on test-bed
Test；When testing element for it is multiple when, by multiple subject elements be installed on corresponding on test-bed, and by multiple subject element groups
Corresponding set of test modules is synthesized, according to the actual condition of excavator and real load characteristic, composite moving is carried out to Hydraulic Elements
Make endurancing, each element realizes the adaptive of the pressure for being tested each Hydraulic Elements and flow under different loading environments
Regulation.
Experimental bench system comprises at least a hydraulic oil source unit, and hydraulic oil source unit can also use multiple hydraulic oil sources
Unit combines.Hydraulic oil source unit composition is shown in Fig. 1, mainly by inlet port, temperature sensor, oil return opening, liquid level sensor, hydraulic pressure
Fuel tank, radiator, oil circulating pump group of motors, oil absorption filter, heater, recursive filter, mounting platform, Oil-source control cabinet group
Into；Hydraulic oil in hydraulic oil container enters radiator by oil absorption filter, oil circulating pump group of motors, then by heater with
Hydraulic return fuel tank after recursive filter.The hydraulic oil source unit hydraulic oil circulation temperature conditioning unit independent as one, can basis
The temperature of setting is controlled to the cooling water flow of radiator and the working condition of heater, so as to enter trip temperature to hydraulic oil
Control, and circulating filtration is carried out to hydraulic oil by recursive filter, fluid cleaning is kept, while hydraulic oil source unit can provide
Multipath hydraulic oil oil suction interface and oil return interface, facilitate system pipeline to connect.
Experimental bench system comprises at least a variable frequency drive unit, and the driving control of different rotating speeds is provided for subject hydraulic pump
System, rotating speed and torque signal gather.Its structure composition is shown in Fig. 2, mainly by variable-frequency motor, driving shaft coupling, hydraulic pump torque axis
Fast sensor, hydraulic pump fixed support etc. form, and hydraulic pump fixed support adapts to the type of attachment of different hydraulic pumps.It is whole to become
Frequency driver element is fixed in a driver element mounting seat, formed an independent unit module, can facilitate with
Remaining block combiner connects.
Experimental bench system comprises at least a hydraulic loaded unit, and hydraulic loaded control and oil are provided for subject Hydraulic Elements
Road connecting interface.Its structure composition is as shown in figure 3, mainly by load test cabinet, Loading Control unit, oil inlet and oil return interface, loading
Control valve group, pilot control oil interface, experiment oil circuit interface, industrial computer composition.Wherein Loading Control valve group is loaded by A/B oil circuits
Valve group, loading flow measurement valve group, commutation flow measurement valve group and pilot control valve group composition.A/B oil circuits loading valve group has two-way, main logical
The mode for crossing hydraulic damping loads to complete the shock simulation of banked direction control valves or hydraulic pump；It is mainly hydraulic pump to load flow measurement valve group
Performance test provides hydraulic damping loading and flow measurement and provides Loading Control for loading motor and be that multichannel valve performance is tried
Test and controllable pressure oil sources is provided；The flow measurement valve group that commutates is mainly to be tested the endurancing and performance test offer commutation control of motor
System and flow detection；Pilot control valve group is mainly that banked direction control valves, motor etc. provide pilot control oil sources.In each Loading Control valve group
Have the pressure for testing inspection, flow and a temperature sensor, its structural principle can flexible design as needed, it is predominantly full
All elements such as sufficient excavator duplex hydraulic pump, two-way above banked direction control valves, hydraulic motor are tested or each individually simultaneously
Experiment.Loading Control valve group is integrated in a load test cabinet, and experiment cabinet uses totally-enclosed box cabinet body structure, facilitates whole
Body movement is lifted, and abundant hydraulic circuit interface is left outside box-shaped cabinet, convenient can carry out oil circuit company with other test units
Connect, while the Loading Control unit being controlled to Loading Control valve group is integrated with experiment cabinet.
Experimental bench system includes an auxiliary oil sources unit, can provide pilot control during experiment for pilot system
Low pressure repairing oil sources when oil sources and motor are tested.Its structure composition is shown in Fig. 4, mainly by low pressure oil supply oil circuit, fuel sucking pipe oil circuit,
Low pressure fuel pump group of motors, guide's oil feeding line, guide's Oil pump electrical machinery group, auxiliary Oil-source control cabinet composition, each part installation
On an integral installation base, in that context it may be convenient to move integrally lifting.Low pressure oil supply oil circuit can be connected with load-on module,
When hydraulic motor is tested low pressure oil sources can be provided by the loading flow measurement valve group of inside for loading motor.Guide's oil feeding line
It can be connected with hydraulic loaded unit, pilot control oil sources is provided for system by the pilot control valve group pressure regulation of inside.
Experimental bench system includes a subject component test installation stand, is mainly used in the experiment of banked direction control valves and hydraulic motor
Installation is fixed.Banked direction control valves can be mounted directly on fixation test platform, and hydraulic motor experiment installation stand is divided into impact test installation
Stand and performance test installation stand.The durability Impulsive load of hydraulic motor mainly carries out impact by the inertia of flywheel group and added
Carry, it tests installation stand as shown in figure 5, mainly by flywheel mounting bracket, inertial flywheel group, motor mounting bracket and subject horse
Up to composition, each composition is partially installed on a unsplit bedplate, conveniently moves integrally combination.The size of inertial flywheel group is by being tested
The rotary inertia of motor respective hosts is calculated.During durability impact test, by being tested banked direction control valves or hydraulic loaded unit
Subject motor is commutated and speed control, formed in commutation process by inertial flywheel group to subject motor A/B hydraulic fluid ports
Impulsive load.The performance test loading of hydraulic motor is mainly loaded by loading motor to subject motor, and it tests installation
Stand as shown in fig. 6, mainly by loading motor, loading motor mounting bracket, motor shaft coupling, motor torsional moment speed probe,
Motor mounting bracket, subject motor composition are tested, each part is also mounted on a unsplit bedplate, conveniently moves integrally group
Close.Hydraulic damping Loading Control is carried out during performance test to the pressure for being tested motor A/B hydraulic fluid ports by hydraulic loaded unit to reach
To the purpose of subject motor loading.
Its feature is that experimental bench system comprises at least a Measurement and Control System, and experiment is provided for whole pilot system
Control and Test Data Collecting function, are mainly made up of electric control system, data collecting system and central control system.Electrical control
System controls mainly for the motor of hydraulic oil source unit, oil temperature, filtering, alarm etc.；The speed governing control of variable frequency drive unit motor
Make, the control of the motor and magnetic valve of auxiliary oil sources unit.Each modular unit has field control cabinet, and passes through EPA
With central control system composition control network.Data collecting system mainly complete to the load driver of hydraulic loaded test control system and
Measure with test parameters, be made up of industrial computer, data collecting card, proportional amplifier plate etc..Data collecting system is located at hydraulic loaded
In the test control cabinet of unit, equally using EPA and central control system composition control network.Central control system is mainly responsible for
The concentrated controling management of whole test system, is communicated by EPA with remaining system.Central control system is mainly by upper
The human-computer interaction interface composition of position machine and display composition.Operating personnel are tested whole pilot system by man-machine interface
Management and data processing.
A kind of excavator is to use excavator Hydraulic Elements with the test method of Hydraulic Elements durability multi-function test stand
Multi-function test stand, according to subject Hydraulic Elements needs, carry out flexible modular combination, can it is independent to hydraulic pump (such as
Fig. 8), banked direction control valves (such as Fig. 9) and hydraulic motor (such as Figure 10) carry out traditional endurancing, and each element is combined and realized by and can
Hydraulic pump+banked direction control valves (such as Figure 11), hydraulic pump+banked direction control valves+hydraulic motor (such as Figure 12) multicomponent joint durability impact test.
Composite move durability examination is carried out to Hydraulic Elements according to the actual condition of excavator and real load characteristic completely during experiment
Test, each element is realized the pressure of each element and the automatic adjusument of flow under different loading environments, is tested element
Test effect closing to reality working characteristics.Testing stand tries but also with necessary hydraulic pump, banked direction control valves and hydraulic motor performance simultaneously
Test, status checkout easily is carried out to subject element, to judge the whether qualified of element be tested, substantially increases the examination of testing stand
Test function and test efficiency.
Embodiment of the present utility model is described in detail above, but the content is only of the present utility model preferable
Embodiment, it is impossible to be considered as being used to limit practical range of the present utility model.It is all made according to present utility model application scope it is equal
Deng change and improvement etc., all should still belong within patent covering scope of the present utility model.
Claims (4)
- A kind of 1. excavator Hydraulic Elements durability multi-function test stand；It is characterized in that：Comprise at least：Test platform and position In on test platform：Hydraulic oil source unit, the hydraulic oil source unit include inlet port (1-1), temperature sensor (1-2), oil return opening (1-3), Liquid level sensor (1-4), hydraulic oil container (1-5), radiator (1-6), oil circulating pump group of motors (1-7), oil absorption filter (1- 8), heater (1-9), recursive filter (1-10), mounting platform (1-11), Oil-source control cabinet (1-12)；The hydraulic oil container (1-5), oil absorption filter (1-8), oil circulating pump group of motors (1-7), radiator (1-6), heater (1-9), recursive filter (1-10), hydraulic oil container (1-5) are sequentially connected composition circulation loop by oil circuit；For detecting hydraulic oil container (1-5) inner fluid The temperature sensor (1-2) of temperature electrically connects with the I/O ports of Oil-source control cabinet (1-12)；For detecting hydraulic oil container (1-5) The liquid level sensor (1-4) of inner fluid height electrically connects with the I/O ports of Oil-source control cabinet (1-12)；Variable frequency drive unit, the variable frequency drive unit include driver element mounting seat (2-1) and are fixed on driver element Variable-frequency motor (2-2), driving shaft coupling (2-3), hydraulic pump torque speed sensor (2-4), hydraulic pressure in mounting seat (2-1) Pump fixed support (2-5), the variable-frequency motor (2-2), hydraulic pump torque speed sensor (2-4), hydraulic pump fixed support (2- 5) by driving shaft coupling (2-3) to connect；The hydraulic pump fixed support (2-5) is used to install fixed different subject hydraulic pressure Pump；Hydraulic loaded unit, the hydraulic loaded unit include load test cabinet (3-1) and in load test cabinets Loading Control unit (3-2), oil inlet and oil return interface (3-3), Loading Control valve group (3-4), pilot control oil interface (3-5), examination Test oil circuit interface (3-6), industrial computer (3-7)；The Loading Control unit (3-2) passes through electric wiring and Loading Control valve group (3-4) is connected；The industrial computer (3-7) is connected with Loading Control unit (3-2) by electric wiring；The oil inlet and oil return interface (3-3), pilot control oil interface (3-5), experiment oil circuit interface (3-6) are connected by oil circuit with Loading Control valve group (3-4)；Oil sources unit is aided in, the auxiliary oil sources unit includes auxiliary oil sources mounting seat (4-7) and is fixed on auxiliary oil sources Low pressure oil supply oil circuit (4-1), fuel sucking pipe oil circuit (4-2), the first low pressure fuel pump group of motors (4-3) in mounting seat (4-7), Two low pressure fuel pump group of motors (4-4), guide's oil feeding line (4-5), guide's Oil pump electrical machinery group (4-6), auxiliary Oil-source control cabinet (4- 8)；The fuel sucking pipe oil circuit (4-2) respectively with the first low pressure fuel pump group of motors (4-3), the second low pressure fuel pump group of motors (4-4), The inlet port connection of guide's Oil pump electrical machinery group (4-6)；The low pressure oil supply oil circuit (4-1) and guide's oil feeding line (4-5) are all provided with There is the oil circuit interface being connected with hydraulic loaded unit；It is described auxiliary Oil-source control cabinet (3-8) I/O ports respectively with the first low pressure Oil pump electrical machinery group (4-3), the second low pressure fuel pump group of motors (4-4), guide's Oil pump electrical machinery group (4-6) connection；Motor impact test-bed, the motor impact test-bed include motor impact mounting seat (5-2), rushed positioned at motor Flywheel mounting bracket (5-1), inertial flywheel group (5-3), motor mounting bracket (5-4) and the subject hit in mounting seat (5-2) Motor (5-5)；The inertial flywheel group (5-3) is installed between flywheel mounting bracket (5-1) and motor mounting bracket (5-4)； The subject motor (5-5) is arranged in motor mounting bracket (5-4)；Motor performance test-bed, the motor performance test-bed include motor performance mounting seat (6-5), positioned at motor Loading motor (6-1), loading motor mounting bracket (6-2), motor shaft coupling (6-3), motor in energy mounting seat (6-5) are turned round Square speed probe (6-4), subject motor mounting bracket (6-6), subject motor (6-7)；The loading motor mounting bracket (6- 2), it is tested motor mounting bracket (6-6) to be fixedly connected with motor performance mounting seat (6-5), the motor torsional moment revolution speed sensing Device (6-4) passes through motor shaft coupling between loading motor mounting bracket (6-2) and subject motor mounting bracket (6-6) (6-3) is connected with loading motor mounting bracket (6-2) and subject motor mounting bracket (6-6).
- 2. excavator according to claim 1 Hydraulic Elements durability multi-function test stand, it is characterised in that：Also include using In detect and control hydraulic oil source unit, variable frequency drive unit, hydraulic loaded unit, auxiliary oil sources unit, motor impact experiment Stand, the Measurement and Control System of motor performance test-bed action；The Measurement and Control System includes electric control system, data Acquisition system and central control system；Wherein：The electric control system includes electric elements, frequency converter, programmable controller etc., institute Electric control system is stated respectively with Oil-source control cabinet (1-12), variable-frequency motor (2-2), auxiliary Oil-source control cabinet (4-8) electrically to connect Connect；The data collecting system includes industrial computer (3-7), the data collecting card being sequentially connected electrically；The data collecting card difference With it is each inside hydraulic pump torque speed sensor (2-4), motor torsional moment speed probe (6-4) and hydraulic loaded unit Class pressure, flow and temperature sensor electrical connection；The central control system includes host computer, human-computer interaction device, display；It is described Host computer is electrically connected with programmable controller, industrial computer (3-7) respectively by Ethernet.
- 3. excavator according to claim 2 Hydraulic Elements durability multi-function test stand, it is characterised in that：The hydraulic pressure The Loading Control valve group (3-4) of loading unit includes A/B oil circuits loading valve group, loading flow measurement valve group, commutation flow measurement valve group and elder generation Lead control valve group；A/B oil circuits loading valve group has a two-way, and A/B oil circuit charge valves are more to complete by way of hydraulic damping The shock simulation of road valve or hydraulic pump loads；The loading flow measurement valve group provides hydraulic damping loading for the performance test of hydraulic pump With flow measurement while provide Loading Control for loading motor and provide controllable pressure oil sources for banked direction control valves performance test；Institute State commutation flow measurement valve group and provide commutation control and flow detection to be tested the endurancing of motor and performance test；The guide Control valve group is banked direction control valves, motor provides pilot control oil sources；Have on the Loading Control valve group (3-4) for testing inspection Pressure, flow and temperature sensor.
- 4. the excavator Hydraulic Elements durability multi-function test stand according to claim any one of 1-3, it is characterised in that： The subject Hydraulic Elements include the one or more in hydraulic pump, banked direction control valves, hydraulic motor.
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| CN201720955181.2U CN207195360U (en) | 2017-08-01 | 2017-08-01 | A kind of excavator Hydraulic Elements durability multi-function test stand |
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| CN201720955181.2U CN207195360U (en) | 2017-08-01 | 2017-08-01 | A kind of excavator Hydraulic Elements durability multi-function test stand |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107288955A (en) * | 2017-08-01 | 2017-10-24 | 天津工程机械研究院有限公司 | A kind of excavator Hydraulic Elements durability multi-function test stand and test method |
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- 2017-08-01 CN CN201720955181.2U patent/CN207195360U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107288955A (en) * | 2017-08-01 | 2017-10-24 | 天津工程机械研究院有限公司 | A kind of excavator Hydraulic Elements durability multi-function test stand and test method |
| CN107288955B (en) * | 2017-08-01 | 2023-08-15 | 天津工程机械研究院有限公司 | Comprehensive test bed and test method for durability of hydraulic element for excavator |
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