CN109931315A - A kind of dynamic checkout unit and its application method of oil cylinder - Google Patents
A kind of dynamic checkout unit and its application method of oil cylinder Download PDFInfo
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- CN109931315A CN109931315A CN201910296295.4A CN201910296295A CN109931315A CN 109931315 A CN109931315 A CN 109931315A CN 201910296295 A CN201910296295 A CN 201910296295A CN 109931315 A CN109931315 A CN 109931315A
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- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000012360 testing method Methods 0.000 claims abstract description 92
- 230000009471 action Effects 0.000 claims abstract description 63
- 239000003921 oil Substances 0.000 claims description 139
- 239000012530 fluid Substances 0.000 claims description 30
- 239000002828 fuel tank Substances 0.000 claims description 24
- 239000010720 hydraulic oil Substances 0.000 claims description 15
- 238000009434 installation Methods 0.000 claims description 6
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 3
- 239000010727 cylinder oil Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 7
- 238000005299 abrasion Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The present invention relates to a kind of technical field of hydraulic pressure, more specifically, it is related to the dynamic checkout unit and its application method of a kind of oil cylinder, its key points of the technical solution are that: the dynamic checkout unit including oil cylinder, pull action cylinder, pull action cylinder hydraulic system, test oil cylinder and test oil cylinder hydraulic system, the dynamic checkout unit is connected with pull action cylinder and test oil cylinder respectively, the pull action cylinder hydraulic system is independent, and hydraulic power is provided to pull action cylinder, the test oil cylinder hydraulic system is independent, its hydraulic system does not provide hydraulic power to hydraulic cylinder, described two hydraulic systems are not formed into a loop mutually.The present invention has the advantages that detect oil cylinder real quality, sealing element pressure resistance amount, sealing part abrasion amount and ensures oil cylinder reliability.
Description
Technical field
The present invention relates to a kind of technical field of hydraulic pressure, more specifically, it relates to a kind of dynamic checkout unit of oil cylinder and
Its application method.
Background technique
Hydraulic cylinder is that hydraulic energy is changed into mechanical energy, the hydraulic of straight reciprocating motion (or pendulum motion) is done and executes member
Part.Its structure is simple and reliable operation, when realizing reciprocating motion, can remove deceleration device from it, and do not have drive gap,
Movement is steady, therefore is used widely in the hydraulic system of various machinery.Hydraulic cylinder power output and piston effective area and
The pressure difference on its both sides is directly proportional, hydraulic cylinder form substantially by cylinder barrel, cylinder cap, piston, piston rod, sealing device, buffer unit with
The composition such as exhaust apparatus.
In our daily hydraulic cylinder production processes, hydraulic cylinder is tested, and prevents from occurring because of quality problems
Operating accident, but in existing technical method, oil cylinder can only accomplish static voltage-withstand test and internal and outernal leakage etc., cannot achieve
Load and dynamic are tested, and the incomplete virtual condition for embodying oil cylinder detected is called untrue test, in fact, pole needs
Oil cylinder accomplishes that total travel loads before factory, the reciprocal real quality loaded to examine oil cylinder.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of dynamic checkout unit of oil cylinder and its
Application method has detection oil cylinder real quality, sealing element pressure resistance amount, sealing part abrasion amount and ensures the excellent of oil cylinder reliability
Point.
Above-mentioned technical purpose of the invention has the technical scheme that a kind of dynamic test dress of oil cylinder
It sets, including pedestal, the base upper surface two sides are vertically arranged with column, are fixedly installed connection between two columns
Axis is rotatably connected to tension arm in the connecting shaft, and the both ends of the tension arm offer connecting hole, and two columns
Two sides are respectively arranged with test oil cylinder connecting seat and pull action cylinder attachment base, the test oil cylinder connecting seat offer adjusting
Hole offers mounting hole on the pull action cylinder attachment base.
By using above-mentioned technical proposal, installation test oil cylinder and pull action cylinder, the head of oil cylinder are all connected on pedestal
On the connecting hole of tension arm, cylinder barrel is connected on adjustment hole and mounting hole, and test oil cylinder is connected with working oil path, with control
System test cylinder piston rod stretching or retraction, and then by tension arm drive the other side pull action cylinder piston rod do stretch out or
Retraction is directly driven by test oil cylinder, since pull action cylinder passive delivery is connected so test oil cylinder at this time is load movement
, after test oil cylinder finishes test job, test oil cylinder is detected using oil cylinder all data detection system in staff
Real quality, the test result of this test device is accurate, reduces the fraction defective of oil cylinder production and ensures cylinder efficient
Reliability.
The present invention is further arranged to: the adjustment hole setting is multiple, and multiple adjustment hole settings connect in test oil cylinder
Differentiated levels on joint chair, and multiple adjustment holes are arranged in multi-angle.
By using above-mentioned technical proposal, adjustment hole is arranged in multi-angle and differentiated levels, can detecte test oil
Load test of the cylinder under various different conditions, improves the scope of application of test device.
The present invention is further arranged to: pull action cylinder, the test oil cylinder connection are installed on the pull action cylinder attachment base
Installation test oil cylinder, the pull action cylinder are connected with pull action cylinder hydraulic system on seat, and the test oil cylinder is connected with test oil
Cylinder hydraulic system, the pull action cylinder hydraulic system provide hydraulic power to pull action cylinder, and the test oil cylinder hydraulic system is not
Hydraulic power is provided to test oil cylinder, and pull action cylinder hydraulic system is not formed into a loop mutually with test oil cylinder hydraulic system.
Through the above technical solution, pull action cylinder is connected by oil cylinder dynamic checkout unit with test oil cylinder, due to
Only pull action cylinder hydraulic system has dynamical element, and test oil cylinder has no dynamical element, so that pull action cylinder is dynamic by oil cylinder
State test device drives test oil cylinder to carry out stretching motion, is generated during testing oil cylinder stretching motion from fuel tank oil suction and row
The effect of oil, and then generate negative pressure, reach detection oil cylinder real quality, sealing element pressure resistance amount, sealing part abrasion amount and ensure
The function of oil cylinder reliability.
The present invention is further arranged to: the pull action cylinder hydraulic system is independent, and the pull action cylinder hydraulic system includes
Solenoid directional control valve, hydraulic oil pump, pilot operated electromagnetic relief valve one, pressure gauge and fuel tank one, the oil inlet of the pull action cylinder
It is connected with the A hydraulic fluid port of solenoid directional control valve, the oil outlet of the pull action cylinder is connected with the B hydraulic fluid port of solenoid directional control valve, described
Hydraulic oil pump is connected with fuel tank one, and the pilot operated electromagnetic relief valve one is connected in parallel on hydraulic oil pump two sides, the pressure gauge connection
In one end of pilot operated electromagnetic relief valve one.
Through the above technical solution, the A hydraulic fluid port of the oil inlet with solenoid directional control valve of pull action cylinder is connected, pull action cylinder
Oil outlet is connected with the B hydraulic fluid port of solenoid directional control valve, and hydraulic oil pump draw oil from fuel tank by solenoid directional control valve enters valve
Body, and then execute the stretching or retracting motion of pull action cylinder.
The present invention is further arranged to: the test oil cylinder hydraulic system is independent, and the test oil cylinder hydraulic system includes
Two adjustable check valves, two pilot operated electromagnetic relief valves two and fuel tank two, one of them described adjustable check valve, its
In a pilot operated electromagnetic relief valve two P hydraulic fluid port with test oil cylinder oil inlet be connected, another described adjustable single to
Valve, another pilot operated electromagnetic relief valve two are connected with the oil outlet of test oil cylinder, and two pilot operated compound relief valves two
T hydraulic fluid port be connected with fuel tank two.
Through the above technical solution, the size of negative pressure produced by test oil cylinder is adjusted.
The present invention also provides a kind of above-mentioned application methods of the dynamic checkout unit of oil cylinder, the steps include:
(1) hydraulic oil pump enters valve body by the P hydraulic fluid port of solenoid directional control valve after draw oil oiling in fuel tank, then passes through control
Solenoid directional control valve processed determines that direction determines that pressure oil by the oil inlet or oil outlet of the A mouthfuls or B mouthfuls pull action cylinder connected, is held
The stretching or retracting motion of row pull action cylinder 1；
(2) pull action cylinder, which is stretched out, pushes dynamic checkout unit, and test oil cylinder is driven to carry out stretching motion, and test oil cylinder carries out oil suction
Movement, the oil inlet for testing oil cylinder are connected with an adjustable check valve with the P hydraulic fluid port of a pilot operated electromagnetic relief valve two,
T hydraulic fluid port accesses fuel tank, tests the oil outlet of oil cylinder and the P oil of an adjustable check valve and a pilot operated electromagnetic relief valve two
Mouth is connected, and T hydraulic fluid port accesses fuel tank, adjusts hydraulic fluid flow rate, and then adjusting test by adjusting pilot operated electromagnetic relief valve two
The size of negative pressure produced by oil cylinder.
In conclusion the invention has the following advantages:
First, the structure of test device is simple, manufacturing cost is lower and assembly is easy；
Second, the testing result of test device is accurate and applied widely.
Detailed description of the invention
Fig. 1 is the overall structure front view of test device in the present embodiment；
Fig. 2 is the test mode schematic diagram in the present embodiment after test device installation oil cylinder；
Fig. 3 is the pull action cylinder hydraulic schematic diagram of test device in the present embodiment；
Fig. 4 is the test oil cylinder hydraulic schematic diagram of test device in the present embodiment.
In figure: 1, connecting shaft；2, tension arm；3, connecting hole；4, column；5, pull action cylinder attachment base；6, mounting hole；7, bottom
Seat；8, oil cylinder connecting seat is tested；9, adjustment hole；10, oil cylinder is tested；11, pull action cylinder；12, solenoid directional control valve；13, fuel tank one；
14, hydraulic oil pump；15, pilot operated electromagnetic relief valve one；16, pressure gauge；17, adjustable check valve；18, guide type electromagnetic overflow
Valve two；19, fuel tank two.
Specific embodiment
With reference to the accompanying drawings and examples, the present invention will be described in detail.
As Figure 1-Figure 4, a kind of dynamic checkout unit of oil cylinder, including pedestal 7,7 upper surface two sides of pedestal are vertical
It is provided with column 4, connecting shaft 1 is fixedly installed between two columns 4, tension arm 2, tension arm 2 are rotatably connected in connecting shaft 1
Both ends offer connecting hole 3, two 4 two sides of column are respectively arranged with test oil cylinder connecting seat 8 and pull action cylinder connection
Seat 5 is tested in oil cylinder connecting seat 8 and offers adjustment hole 9, mounting hole 6 is offered on pull action cylinder attachment base 5.
Adjustment hole 9 be arranged it is multiple, multiple adjustment holes 9 be arranged in test 10 attachment base 8 of oil cylinder on differentiated levels and
It is arranged in multi-angle, to adapt to authentic testing of the test oil cylinder 10 under different conditions.
Pull action cylinder 11 is installed on pull action cylinder attachment base 5, tests installation test oil cylinder 10, pulling force in oil cylinder connecting seat 8
Oil cylinder 11 is connected with pull action cylinder hydraulic system, and test oil cylinder 10 is connected with test oil cylinder hydraulic system, pull action cylinder hydraulic pressure system
It unites and provides hydraulic power to pull action cylinder 11, test oil cylinder hydraulic system does not provide hydraulic power, and pulling force to test oil cylinder 10
Oil cylinder hydraulic system is not formed into a loop mutually with test oil cylinder hydraulic system.
Specifically, pull action cylinder hydraulic system is independent, pull action cylinder hydraulic system includes solenoid directional control valve 12, hydraulic oil pump
14, pilot operated electromagnetic relief valve 1, pressure gauge 16 and fuel tank 1, the oil inlet and solenoid directional control valve 12 of pull action cylinder 11
A hydraulic fluid port be connected, the oil outlet of pull action cylinder 11 is connected with the B hydraulic fluid port of solenoid directional control valve 12, hydraulic oil pump 14 and fuel tank
One 13 series connection, pilot operated electromagnetic relief valve 1 are connected in parallel on 14 two sides of hydraulic oil pump, and pressure gauge 16 is connected to guide type electromagnetic and overflows
Flow one end of valve 1.
It is independent to test oil cylinder hydraulic system, test oil cylinder hydraulic system includes two adjustable check valves, 17, two guides
Formula electromagnetic relief valve 2 18 and fuel tank 2 19, one of them adjustable check valve 17, one of pilot operated electromagnetic relief valve
2 18 P hydraulic fluid port is connected with the oil inlet of test oil cylinder 10, another adjustable check valve 17, another guide type electromagnetic overflow
Stream valve 2 18 with test oil cylinder 10 oil outlet be connected, and the T hydraulic fluid port of two pilot operated compound relief valves 2 18 with 2 19 phase of fuel tank
Connection.
A kind of application method of the dynamic checkout unit of oil cylinder the following steps are included:
(1) hydraulic oil pump 14 enters valve body by the P hydraulic fluid port of solenoid directional control valve 12 after draw oil oiling in fuel tank, then leads to
Cross the oil inlet of pull action cylinder 11 that control solenoid directional control valve 12 determines that direction determines that pressure oil is connected by A mouthfuls or B mouthfuls or
Oil outlet executes the stretching or retracting motion of pull action cylinder 11；
(2) pull action cylinder 11 stretch out push dynamic checkout unit, drive test oil cylinder 10 carry out stretching motion, test oil cylinder 10 into
The P of 10 oil inlet of oil cylinder and an adjustable check valve 17 and a pilot operated electromagnetic relief valve 2 18 is tested in row oil suction campaign
Hydraulic fluid port is connected, and T hydraulic fluid port accesses fuel tank, the oil outlet and an adjustable check valve 17 of test oil cylinder 10 and a pilot-operated type electricity
The P hydraulic fluid port of magnetic overflow valve two is connected, and T hydraulic fluid port accesses fuel tank, adjusts hydraulic oil by adjusting pilot operated electromagnetic relief valve 2 18
Flow, and then adjust the size of negative pressure produced by test oil cylinder 10.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (6)
1. a kind of dynamic checkout unit of oil cylinder, it is characterised in that: including pedestal, the base upper surface two sides are vertically arranged
There is column, connecting shaft is fixedly installed between two columns, tension arm, the pulling force are rotatably connected in the connecting shaft
The both ends of arm offer connecting hole, and two column two sides are respectively arranged with test oil cylinder connecting seat and pull action cylinder
Attachment base, the test oil cylinder connecting seat offer adjustment hole, offer mounting hole on the pull action cylinder attachment base.
2. a kind of dynamic checkout unit of oil cylinder according to claim 1, it is characterised in that: the adjustment hole setting is more
A, the differentiated levels in test oil cylinder connecting seat are arranged in multiple adjustment holes, and multiple adjustment holes are in polygonal
Degree setting.
3. a kind of dynamic checkout unit of oil cylinder according to claim 1, it is characterised in that: the pull action cylinder attachment base
Upper installation pull action cylinder, installation test oil cylinder, the pull action cylinder are connected with pull action cylinder liquid in the test oil cylinder connecting seat
Pressure system, the test oil cylinder are connected with test oil cylinder hydraulic system, and the pull action cylinder hydraulic system is provided to pull action cylinder
Hydraulic power, the test oil cylinder hydraulic system do not provide hydraulic power, and pull action cylinder hydraulic system and survey to test oil cylinder
Formation testing cylinder hydraulic system is not formed into a loop mutually.
4. a kind of dynamic checkout unit of oil cylinder according to claim 3, it is characterised in that: the pull action cylinder hydraulic pressure system
Unification and independence are vertical, and the pull action cylinder hydraulic system includes solenoid directional control valve, hydraulic oil pump, pilot operated electromagnetic relief valve one, pressure gauge
And fuel tank one, the oil inlet of the pull action cylinder are connected with the A hydraulic fluid port of solenoid directional control valve, the oil outlet of the pull action cylinder
It is connected with the B hydraulic fluid port of solenoid directional control valve, the hydraulic oil pump is connected with fuel tank one, and the pilot operated electromagnetic relief valve one is in parallel
In hydraulic oil pump two sides, the pressure gauge is connected to one end of pilot operated electromagnetic relief valve one.
5. a kind of dynamic checkout unit of oil cylinder according to claim 3, it is characterised in that: the test oil cylinder hydraulic pressure system
Unification and independence are vertical, and the test oil cylinder hydraulic system includes two adjustable check valves, two pilot operated electromagnetic relief valves two and oil
Case two, one of them described adjustable check valve, one of pilot operated electromagnetic relief valve two P hydraulic fluid port and test oil cylinder into
Hydraulic fluid port is connected, the oil outlet of another described adjustable check valve, another pilot operated electromagnetic relief valve two and test oil cylinder
It is connected, and the T hydraulic fluid port of two pilot operated compound relief valves two is connected with fuel tank two.
6. a kind of application method of the dynamic checkout unit of oil cylinder described in any one of -5 claims according to claim 1,
It is characterized in that, comprising the following steps:
(1) hydraulic oil pump enters valve body by the P hydraulic fluid port of solenoid directional control valve after draw oil oiling in fuel tank, then passes through control
Solenoid directional control valve processed determines that direction determines that pressure oil by the oil inlet or oil outlet of the A mouthfuls or B mouthfuls pull action cylinder connected, is held
The stretching or retracting motion of row pull action cylinder 1；
(2) pull action cylinder, which is stretched out, pushes dynamic checkout unit, and test oil cylinder is driven to carry out stretching motion, and test oil cylinder carries out oil suction
Movement, test oil cylinder oil inlet are connected with an adjustable check valve with the P hydraulic fluid port of a pilot operated electromagnetic relief valve two, T
Hydraulic fluid port accesses fuel tank, tests the oil outlet of oil cylinder and the P oil of an adjustable check valve and a pilot operated electromagnetic relief valve two
Mouth is connected, and T hydraulic fluid port accesses fuel tank, adjusts hydraulic fluid flow rate, and then adjusting test by adjusting pilot operated electromagnetic relief valve two
The size of negative pressure produced by oil cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910296295.4A CN109931315A (en) | 2019-04-13 | 2019-04-13 | A kind of dynamic checkout unit and its application method of oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910296295.4A CN109931315A (en) | 2019-04-13 | 2019-04-13 | A kind of dynamic checkout unit and its application method of oil cylinder |
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| CN109931315A true CN109931315A (en) | 2019-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910296295.4A Pending CN109931315A (en) | 2019-04-13 | 2019-04-13 | A kind of dynamic checkout unit and its application method of oil cylinder |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253576A (en) * | 2020-10-20 | 2021-01-22 | 徐州徐工液压件有限公司 | Universal reliability test device for hydraulic cylinder |
| CN112611519A (en) * | 2020-12-23 | 2021-04-06 | 芜湖稳乐制动系统有限公司 | Power-assisted oil cylinder detection device of automobile braking system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101881288A (en) * | 2010-06-29 | 2010-11-10 | 徐工集团工程机械股份有限公司江苏徐州工程机械研究院 | Hydraulic cylinder durability test method and device |
| CN204493356U (en) * | 2015-01-27 | 2015-07-22 | 柳州柳工液压件有限公司 | The test stand of oil cylinder |
| RU165044U1 (en) * | 2015-12-31 | 2016-09-27 | федеральное государственное автономное образовательное учреждение высшего образования "Самарский государственный аэрокосмический университет имени академика С.П. Королева (национальный исследовательский университет)" (СГАУ) | STAND FOR DYNAMIC TESTS OF CYLINDERS |
| CN205663681U (en) * | 2016-06-14 | 2016-10-26 | 范荣华 | Portable hydraulic cylinder test machine |
| CN106194900A (en) * | 2016-08-30 | 2016-12-07 | 武汉理工大学 | A kind of hydraulic reciprocating seals dynamic property detection device and design |
| CN107191434A (en) * | 2016-03-14 | 2017-09-22 | 吕庆洲 | A kind of secondary reinforcement hydraulic cylinder test-bed |
| CN209908895U (en) * | 2019-04-13 | 2020-01-07 | 韶关市瑞和液压机械制造有限公司 | Dynamic testing device of oil cylinder |
-
2019
- 2019-04-13 CN CN201910296295.4A patent/CN109931315A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101881288A (en) * | 2010-06-29 | 2010-11-10 | 徐工集团工程机械股份有限公司江苏徐州工程机械研究院 | Hydraulic cylinder durability test method and device |
| CN204493356U (en) * | 2015-01-27 | 2015-07-22 | 柳州柳工液压件有限公司 | The test stand of oil cylinder |
| RU165044U1 (en) * | 2015-12-31 | 2016-09-27 | федеральное государственное автономное образовательное учреждение высшего образования "Самарский государственный аэрокосмический университет имени академика С.П. Королева (национальный исследовательский университет)" (СГАУ) | STAND FOR DYNAMIC TESTS OF CYLINDERS |
| CN107191434A (en) * | 2016-03-14 | 2017-09-22 | 吕庆洲 | A kind of secondary reinforcement hydraulic cylinder test-bed |
| CN205663681U (en) * | 2016-06-14 | 2016-10-26 | 范荣华 | Portable hydraulic cylinder test machine |
| CN106194900A (en) * | 2016-08-30 | 2016-12-07 | 武汉理工大学 | A kind of hydraulic reciprocating seals dynamic property detection device and design |
| CN209908895U (en) * | 2019-04-13 | 2020-01-07 | 韶关市瑞和液压机械制造有限公司 | Dynamic testing device of oil cylinder |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253576A (en) * | 2020-10-20 | 2021-01-22 | 徐州徐工液压件有限公司 | Universal reliability test device for hydraulic cylinder |
| CN112611519A (en) * | 2020-12-23 | 2021-04-06 | 芜湖稳乐制动系统有限公司 | Power-assisted oil cylinder detection device of automobile braking system |
| CN112611519B (en) * | 2020-12-23 | 2024-04-02 | 芜湖稳乐制动系统有限公司 | Power-assisted cylinder detection device of automobile braking system |
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