CN110160718A - A kind of hydraulic cylinder lateral force resistance performance testing device - Google Patents
A kind of hydraulic cylinder lateral force resistance performance testing device Download PDFInfo
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- CN110160718A CN110160718A CN201910422840.XA CN201910422840A CN110160718A CN 110160718 A CN110160718 A CN 110160718A CN 201910422840 A CN201910422840 A CN 201910422840A CN 110160718 A CN110160718 A CN 110160718A
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- hydraulic cylinder
- load
- lateral force
- actuator
- measured
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0041—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress
- G01M5/005—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress by means of external apparatus, e.g. test benches or portable test systems
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The present invention proposes a kind of hydraulic cylinder lateral force performance testing device, and mounting seat is horizontally arranged and fixes, and mounting bracket is fixed on mounting seat side to support and fix hydraulic cylinder to be measured；The fixed load actuator in the other side of mounting seat, loads the piston-rod end connection load transducer of actuator, and load transducer is connect away from one end of the piston rod of load actuator with runner bracket；Load runner is fixed on runner bracket by the erection of its rotary shaft, and load runner pushes against the piston rod of hydraulic cylinder to be measured.It carries out lateral force load to hydraulic cylinder, and the freedom degree of tested hydraulic cylinder piston rod axial direction is discharged in the way of runner, realizes the test of hydraulic cylinder total travel any position lateral force bearing performance.
Description
Technical field
The present invention relates to a kind of hydraulic cylinder lateral force performance testing devices, belong to hydraulic cylinder testing field.
Background technique
Hydraulic cylinder is the executive component in Hydraulic Power Transmission System, hydraulic energy can be converted into mechanical energy, be usually used in industrial neck
The operating conditions such as domain or dynamically load or the static loading of testing field.In the applying working condition of hydraulic cylinder, part applying working condition needs liquid
Cylinder pressure bears biggish lateral force or tilting moment, and this requires hydraulic cylinders to have stronger lateral force resistance performance.
Currently, the lateral force resistance performance of existing hydraulic cylinder is only estimated by theoretical calculation, there is no carry out actual measurement, city
Also lateral force resistance measuring device unmature on field, this will cause certain under to the higher use occasion of lateral force request
Risk.Calculated value is once made mistakes, according to estimation when causing estimated value bigger than the lateral force that can actually bear, and using
Value is loaded, then is likely to occur the lateral force of the receiving situation higher than the lateral force that its reality can be born, and leads to the mistake of load
It loses and the damage of hydraulic cylinder, the more serious peril that may cause operator.
Summary of the invention
(1) technical problems to be solved
For above-mentioned insufficient and demand in the prior art, the present invention proposes a kind of hydraulic cylinder lateral force performance test dress
It sets, lateral force load is carried out to hydraulic cylinder, and discharge the freedom degree of tested hydraulic cylinder piston rod axial direction in the way of runner,
Realize the test of hydraulic cylinder total travel any position lateral force bearing performance.
(2) technical solution
A kind of hydraulic cylinder lateral force resistance performance testing device, including mounting seat, mounting bracket, load runner, runner branch
Frame, load transducer, load actuator, servo valve, control system, oil sources；Mounting seat is horizontally arranged and fixes, mounting bracket
Mounting seat side is fixed on to support and fix hydraulic cylinder to be measured；The fixed load actuator in the other side of mounting seat, adds
The piston-rod end for carrying actuator connects load transducer, and load transducer deviates from one end of the piston rod of load actuator and turns
Wheel support connection；Load runner is fixed on runner bracket by the erection of its rotary shaft, and load runner pushes against hydraulic cylinder to be measured
Piston rod.
Servo valve is mounted in load actuator on the side wall of hydraulic cylinder side to be measured.
First hydraulic fluid port of servo valve is connected to the cavity of resorption of load actuator, the second hydraulic fluid port and the load actuator of servo valve
Epicoele connection.
Servo valve is connect by pipeline with oil sources.
The high-voltage oil liquid outlet of oil sources is connect with the oil inlet of servo valve, and the oil return opening of oil sources and the oil return opening of servo valve connect
It connects.
Control system is connect with the servo valve and load transducer loaded in actuator respectively by cable.
The outer wall for loading runner has one layer of flexible material.
A kind of application method of hydraulic cylinder lateral force resistance performance testing device, comprising the following steps:
Hydraulic cylinder to be measured is fixed in mounting seat by step 1 by mounting bracket, by the piston rod tune of hydraulic cylinder to be measured
It is whole to arrive test position；
The installation site of step 2, adjustment load actuator in mounting seat, makes the work for loading runner and hydraulic cylinder to be measured
Stopper rod pushes against, and the position of the abutting is position to be measured；
Step 3 connects servo valve in place with oil sources, control system respectively, by the displacement sensor for loading actuator, carries
Lotus sensor is connect in place with control system respectively；
Step 4 opens oil sources, and oil liquid is entered in load actuator by the oil inlet of servo valve, drive load actuation
The piston rod movement of device applies lateral force to tested hydraulic cylinder；
The lateral force signal of load is fed back to control system by step 5, load transducer, the command signal with control system
It compares, control system, to the size of the command signal of servo valve, controls the valve of servo valve by comparison result adjustment output
Core openings of sizes is displaced with the two oil pocket pressure differences and piston rod that control load actuator；
Step 6, when load actuator loaded value reach predetermined value when, drive the piston rod of hydraulic cylinder to be measured in stroke model
Interior slow movement is enclosed, checks the situation for judging that hydraulic cylinder to be measured is excessive with the presence or absence of load lateral force；
Step 7 after completing this position measurement, disconnects oil sources, and the piston rod of hydraulic cylinder to be measured is driven to replace to the next position
It is tested, repeats step 4-6, until completing the lateral force resistance performance test of entire hydraulic cylinder to be measured.
The oil liquid is high-voltage oil liquid.
(3) beneficial effect
A kind of hydraulic cylinder lateral force performance testing device of the invention realizes the full row of hydraulic cylinder using conventional component
The application precision of the test of journey any position lateral force bearing performance, lateral force is high, and the processing is simple, and design cost is low, easy to operate,
Use scope is big；In entire test process, control forms closed loop, and test reliability is high.The present invention also can be widely used to other
In the test of the lateral force of component or structure or load measurement.
Detailed description of the invention
A kind of structural schematic diagram of hydraulic cylinder lateral force resistance performance testing device Fig. 1 of the invention.
A kind of control principle drawing of hydraulic cylinder lateral force resistance performance testing device Fig. 2 of the invention.
In figure, 1- mounting seat, 2- mounting bracket, 3- load runner, 4- runner bracket, 5- load transducer, 6- load
Actuator, 7- servo valve, 8- control system, 9- oil sources.
Specific embodiment
Referring to Fig. 1, a kind of hydraulic cylinder lateral force resistance performance testing device of the invention, including mounting seat 1, mounting bracket
2, runner 3, runner bracket 4, load transducer 5, load actuator 6, servo valve 7, control system 8, oil sources 9 are loaded；Bottom is installed
Seat 1 is horizontal positioned and fixed, and mounting bracket 2 is fixed on 1 side of mounting seat to support and fix hydraulic cylinder to be measured；Bottom is installed
The fixed load actuator 6 in the other side of seat 1, the piston-rod end of load actuator 6 connect load transducer 5, load transducer 5
One end away from the piston rod of load actuator 6 is connect with runner bracket 4；Load runner 3 is fixed on by the erection of its rotary shaft
On runner bracket 4, load runner 3 pushes against the piston rod of hydraulic cylinder to be measured.
Servo valve 7 is mounted in load actuator 6 on the side wall of hydraulic cylinder side to be measured, the first oil of servo valve 7
Mouth is connected to the cavity of resorption of load actuator 6, and the second hydraulic fluid port of servo valve 7 is connected to the epicoele of load actuator 6.
Servo valve 7 is connect by pipeline with oil sources 9, and the high-voltage oil liquid outlet of oil sources 9 is connect with the oil inlet of servo valve 7,
The oil return opening of oil sources 9 is connect with the oil return opening of servo valve 7.
Control system 8 is connect with the servo valve 7 and load transducer 5 loaded in actuator 6 respectively by cable.
The outer wall for loading runner 3 has one layer of flexible material.Guarantee that load runner 3 is contacted with tested hydraulic cylinder piston rod
When, piston rod surface will not be damaged, while the tested hydraulic cylinder that is distributed in of the lateral force for loading the application of actuator 6 more evenly being made to live
On stopper rod.
Control system 8 includes man-machine interactive system and display system.
Referring to Fig. 1-2, a kind of application method of hydraulic cylinder lateral force resistance performance testing device of the invention, including following step
It is rapid:
Hydraulic cylinder to be measured is fixed in mounting seat 1 by step 1 by mounting bracket 2, by the piston rod of hydraulic cylinder to be measured
It is adjusted to test position；
The installation site of step 2, adjustment load actuator 6 in mounting seat 1, makes to load runner 3 and hydraulic cylinder to be measured
Piston rod push against, the position of the abutting is position to be measured；
Step 3 connects servo valve 7 in place with oil sources 9, control system 8 respectively, will load the displacement sensing of actuator 6
Device, load transducer 5 are connect in place with control system 8 respectively；
Step 4 opens oil sources 9, and high-voltage oil liquid is entered in load actuator 6 by the oil inlet of servo valve 7, and driving adds
The piston rod movement for carrying actuator 6 applies lateral force to tested hydraulic cylinder；
The lateral force signal of load is fed back to control system 8 by step 5, load transducer 5, the instruction with control system 8
Signal compares, and control system 8, to the size of the command signal of servo valve 7, controls servo by comparison result adjustment output
The valve core opening size of valve 7 is displaced with the two oil pocket pressure differences and piston rod that control load actuator 6；
Step 6, when load actuator 6 loaded value reach predetermined value when, drive the piston rod of hydraulic cylinder to be measured in stroke
It is slowly moved in range, checks the situation for judging that hydraulic cylinder to be measured is excessive with the presence or absence of load lateral force；
Step 7 after completing this position measurement, disconnects oil sources 9, and the piston rod of hydraulic cylinder to be measured is driven to replace to the next position
It is tested, repeats step 4-6, until completing the lateral force resistance performance test of entire hydraulic cylinder to be measured.
Claims (10)
1. a kind of hydraulic cylinder lateral force resistance performance testing device, which is characterized in that turn including mounting seat, mounting bracket, load
Wheel, runner bracket, load transducer, load actuator, servo valve, control system, oil sources；Mounting seat is horizontally arranged and consolidates
Fixed, mounting bracket is fixed on mounting seat side to support and fix hydraulic cylinder to be measured；The other side of mounting seat is fixed to be added
Actuator is carried, the piston-rod end connection load transducer of actuator, piston of the load transducer away from load actuator are loaded
One end of bar is connect with runner bracket；Load runner is fixed on runner bracket by the erection of its rotary shaft, and load runner pushes against
The piston rod of hydraulic cylinder to be measured.
2. a kind of hydraulic cylinder lateral force resistance performance testing device as described in claim 1, which is characterized in that servo valve is mounted on
It loads in actuator on the side wall of hydraulic cylinder side to be measured.
3. a kind of hydraulic cylinder lateral force resistance performance testing device as claimed in claim 2, which is characterized in that the first of servo valve
Hydraulic fluid port is connected to the cavity of resorption of load actuator, and the second hydraulic fluid port of servo valve is connected to the epicoele of load actuator.
4. a kind of hydraulic cylinder lateral force resistance performance testing device as claimed in claim 4, which is characterized in that servo valve passes through pipe
Road is connect with oil sources.
5. a kind of hydraulic cylinder lateral force resistance performance testing device as claimed in claim 5, which is characterized in that the high pressure oil of oil sources
Liquid outlet is connect with the oil inlet of servo valve, and the oil return opening of oil sources and the oil return opening of servo valve connect.
6. a kind of hydraulic cylinder lateral force resistance performance testing device as described in claim 1, which is characterized in that control system passes through
Cable is connect with the servo valve and load transducer loaded in actuator respectively.
7. a kind of hydraulic cylinder lateral force resistance performance testing device as described in claim 1, which is characterized in that load the outer of runner
Wall has one layer of flexible material.
8. a kind of hydraulic cylinder lateral force resistance performance testing device as described in claim 1, which is characterized in that control system includes
Man-machine interactive system and display system.
9. a kind of application method of hydraulic cylinder lateral force resistance performance testing device a method as claimed in any one of claims 1-8, feature
It is, comprising the following steps:
Hydraulic cylinder to be measured is fixed in mounting seat by step 1 by mounting bracket, and the piston rod of hydraulic cylinder to be measured is adjusted to
Test position；
The installation site of step 2, adjustment load actuator in mounting seat, makes the piston rod for loading runner and hydraulic cylinder to be measured
It pushes against, the position of the abutting is position to be measured；
Step 3 connects servo valve in place with oil sources, control system respectively, will load actuator displacement sensor, load sensing
Device is connect in place with control system respectively；
Step 4 opens oil sources, and oil liquid is entered in load actuator by the oil inlet of servo valve, drive load actuator
Piston rod movement applies lateral force to tested hydraulic cylinder；
The lateral force signal of load is fed back to control system by step 5, load transducer, is carried out with the command signal of control system
Comparison, control system by comparison result adjustment output to the size of the command signal of servo valve, open by the spool for controlling servo valve
Mouth size is displaced with the two oil pocket pressure differences and piston rod that control load actuator；
Step 6, when load actuator loaded value reach predetermined value when, drive the piston rod of hydraulic cylinder to be measured in stroke range
Slowly movement checks the situation for judging that hydraulic cylinder to be measured is excessive with the presence or absence of load lateral force；
Step 7 after completing this position measurement, disconnects oil sources, drives the piston rod of hydraulic cylinder to be measured to replace to the next position and carries out
Test repeats step 4-6, until completing the lateral force resistance performance test of entire hydraulic cylinder to be measured.
10. a kind of application method of hydraulic cylinder lateral force resistance performance testing device as claimed in claim 9, which is characterized in that
The oil liquid is high-voltage oil liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910422840.XA CN110160718B (en) | 2019-05-21 | 2019-05-21 | Anti yawing force capability test device of pneumatic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910422840.XA CN110160718B (en) | 2019-05-21 | 2019-05-21 | Anti yawing force capability test device of pneumatic cylinder |
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| Publication Number | Publication Date |
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| CN110160718A true CN110160718A (en) | 2019-08-23 |
| CN110160718B CN110160718B (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910422840.XA Active CN110160718B (en) | 2019-05-21 | 2019-05-21 | Anti yawing force capability test device of pneumatic cylinder |
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| Publication number | Publication date |
|---|---|
| CN110160718B (en) | 2021-01-05 |
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