CN105388029A - Overload vehicle oil-gas spring test device - Google Patents
Overload vehicle oil-gas spring test device Download PDFInfo
- Publication number
- CN105388029A CN105388029A CN201510938370.4A CN201510938370A CN105388029A CN 105388029 A CN105388029 A CN 105388029A CN 201510938370 A CN201510938370 A CN 201510938370A CN 105388029 A CN105388029 A CN 105388029A
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- China
- Prior art keywords
- vibrator
- servo
- test specimen
- board
- force snesor
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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
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/04—Suspension or damping
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to an overload vehicle oil-gas spring test device and belongs to the test science technical field. A closed-loop control servo hydraulic system provides an effectively test device for an overload vehicle oil-gas spring. The device comprises an oil source of the high-pressure servo hydraulic system, an oil pipeline, an oil separation station, an energy accumulator, a servo valve block, a vibration exciter, a sensor, a four-stand-column frame, a tested piece clamp and a digital control cabinet and the like. A high-pressure oil pump can provide high-speed loading for the vibration exciter; and a digital control system arranged in the control cabinet collects data from the sensor and can provide accurate force control and displacement control for the high-speed overload vehicle oil-gas spring through closed-loop control so as to finish various tests and experiments.
Description
Technical field
The invention belongs to test science and technology field, be specifically related to a kind of heavy-duty vehicle hydro-pneumatic spring test unit.
Background technology
Hydro-pneumatic spring is with fluid transmission of pressure, with a kind of suspender of the gases at high pressure in closed container as flexible member, there is non-linear, variation rigidity and increase suspension stiffness increase with the heavy burden stroke that moves in turn, many good characteristics such as more impact energy can be absorbed, effectively can improve the comfortableness of occupant, improve vehicle mobility and cruising characteristic.Hydro-pneumatic spring is in recent years widely used on heavy motor truck and engineering machinery.But oleo-pneumatic suspension also has some shortcomings part, as cost is high, the packoff gentle to oil requires higher, and part processing precision requires high, and maintenance, reliability and life-span are not as torsion bar suspension etc.At present, the property verification of hydro-pneumatic spring is appointed and is so depended on test.At present, domestic hydro-pneumatic spring patent mainly contains: utility model " the assembly comprehensive test device of oil gas suspended device " Application Number (patent): the CN201420053301.6 of Harbin First Machinery Group Corporation Limited, utility model " a kind of hydro-pneumatic suspension test bed of mining dump truck " Application Number (patent): the CN201020188453.9 of Sany Heavy Machine Co., Ltd..These two utility models are all different from the present invention.
Summary of the invention
(1) technical matters that will solve
The technical problem to be solved in the present invention is: how to provide a kind of heavy-duty vehicle hydro-pneumatic spring test unit.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of heavy-duty vehicle hydro-pneumatic spring test unit, comprising: switch board, vibrator (5), point petrol station (10), accumulator (9), fluid pressure line, four column frames (6), force snesor (2), by test specimen jockey (3);
Described four column frames (6) comprise four columns vertically arranged, and are sheathed on the upper leveling board on this four root posts top and are sheathed on the lower horizontal board of this four root posts bottom;
Described vibrator (5) is arranged on the upper leveling board of four column frames (6), on the base plate (1) based on the lower horizontal board of four column frames (6) bottom is supported on by four elastic supports respectively; Described lower horizontal board upper surface is provided with force snesor (2);
Arrange between described force snesor (2) and vibrator (5) by test specimen jockey (3) and distinguished attachment force sensor (2) and vibrator (5) by test specimen jockey (3); Described being gone up by test specimen jockey (3) is installed by test specimen (4);
The extension bar of described vibrator (5) is connected with one end of tested hydro-pneumatic spring, and the other end of tested hydro-pneumatic spring is connected with the force snesor (2) on four column frames (6);
Servo-valve (7) and the hydraulic hose (8) of described vibrator (5) are connected to a point petrol station (10), and point petrol station (10) is connected to high-pressure oil pump through hard tube (11);
Petrol station (10) is divided to connect accumulator (9);
Servo-valve (7) connection control cabinet;
Described high-pressure oil pump, vibrator (5), point petrol station (10), accumulator (9), hydraulic hose (8), hard tube (11) and switch board form servo hydraulic system;
In the course of work, switch board gives an order signal to servo-valve (7), and servo-valve (7) controls vibrator (5) motion according to command signal; The displacement transducer and the described force snesor (2) that are excited at the same time device (5) inside feed back real-time sampling signal to switch board, switch board contrasts enforcement sampled signal and last command signal, the command signal that constantly adjustment is new in real time, controls accurately to the motion of vibrator.
(3) beneficial effect
The invention provides a kind of hydro-pneumatic spring test unit, can be applicable to, in the test-bed of vehicle hydro-pneumatic spring, also can be used for the test of other damping element, flexible member, it is a kind of test unit effectively easily.
Accompanying drawing explanation
Fig. 1 is front view of the present invention;
Wherein, 1-base plate; 2-force snesor; 3-is by test specimen jockey; 4-is by test specimen; 5-vibrator; 6-tetra-column frame; 7-servo-valve; 8-flexible pipe; 9-accumulator; 10-separator station; 11-hard tube.
Embodiment
For making object of the present invention, content and advantage clearly, below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.
As shown in Figure 1, the invention provides a kind of heavy-duty vehicle hydro-pneumatic spring test unit, comprising: switch board, vibrator (5), point petrol station (10), accumulator (9), fluid pressure line, four column frames (6), force snesor (2), by test specimen jockey (3);
Described four column frames (6) comprise four columns vertically arranged, and are sheathed on the upper leveling board on this four root posts top and are sheathed on the lower horizontal board of this four root posts bottom;
Described vibrator (5) is arranged on the upper leveling board of four column frames (6), on the base plate (1) based on the lower horizontal board of four column frames (6) bottom is supported on by four elastic supports respectively; Described lower horizontal board upper surface is provided with force snesor (2);
Arrange between described force snesor (2) and vibrator (5) by test specimen jockey (3) and distinguished attachment force sensor (2) and vibrator (5) by test specimen jockey (3); Described being gone up by test specimen jockey (3) is installed by test specimen (4);
The extension bar of described vibrator (5) is connected with one end of tested hydro-pneumatic spring, and the other end of tested hydro-pneumatic spring is connected with the force snesor (2) on four column frames (6);
Servo-valve (7) and the hydraulic hose (8) of described vibrator (5) are connected to a point petrol station (10), and point petrol station (10) is connected to high-pressure oil pump through hard tube (11);
Petrol station (10) is divided to connect accumulator (9);
Servo-valve (7) connection control cabinet;
Described high-pressure oil pump, vibrator (5), point petrol station (10), accumulator (9), hydraulic hose (8), hard tube (11) and switch board form servo hydraulic system;
In the course of work, switch board gives an order signal to servo-valve (7), and servo-valve (7) controls vibrator (5) motion according to command signal; The displacement transducer and the described force snesor (2) that are excited at the same time device (5) inside feed back real-time sampling signal to switch board, switch board contrasts enforcement sampled signal and last command signal, the command signal that constantly adjustment is new in real time, controls accurately to the motion of vibrator.
In addition, (5) are also provided with other sensor with vibrator, are connected with switch board by data line.Testing crew carries out software operation by the display that switch board and computing machine are connected, and can control the loading of vibrator (5).
The signals collecting of sensor of switch board by this device is arranged, adopts closed-loop control, can control accurately, can carry out Bit andits control respectively to the operation of vibrator, and power controls, to ensure the accuracy of hydro-pneumatic spring testing authentication.
As can be seen from the above embodiments, hydro-pneumatic spring test unit in the present invention, can be applicable to, in the test-bed of vehicle hydro-pneumatic spring, also can be used for the test of other damping element, flexible member, and it is a kind of test unit effectively easily.
Switch board also has other and export input channel, be connected on tested heavily loaded hydro-pneumatic spring by corresponding sensor, with the sensor synchronous acquisition that test unit is equipped with, to facilitate the test of hydro-pneumatic spring.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and distortion, these improve and distortion also should be considered as protection scope of the present invention.
Claims (1)
1. a heavy-duty vehicle hydro-pneumatic spring test unit, it is characterized in that, comprising: switch board, vibrator (5), point petrol station (10), accumulator (9), fluid pressure line, four column frames (6), force snesor (2), by test specimen jockey (3);
Described four column frames (6) comprise four columns vertically arranged, and are sheathed on the upper leveling board on this four root posts top and are sheathed on the lower horizontal board of this four root posts bottom;
Described vibrator (5) is arranged on the upper leveling board of four column frames (6), on the base plate (1) based on the lower horizontal board of four column frames (6) bottom is supported on by four elastic supports respectively; Described lower horizontal board upper surface is provided with force snesor (2);
Arrange between described force snesor (2) and vibrator (5) by test specimen jockey (3) and distinguished attachment force sensor (2) and vibrator (5) by test specimen jockey (3); Described being gone up by test specimen jockey (3) is installed by test specimen (4);
The extension bar of described vibrator (5) is connected with one end of tested hydro-pneumatic spring, and the other end of tested hydro-pneumatic spring is connected with the force snesor (2) on four column frames (6);
Servo-valve (7) and the hydraulic hose (8) of described vibrator (5) are connected to a point petrol station (10), and point petrol station (10) is connected to high-pressure oil pump through hard tube (11);
Petrol station (10) is divided to connect accumulator (9);
Servo-valve (7) connection control cabinet;
Described high-pressure oil pump, vibrator (5), point petrol station (10), accumulator (9), hydraulic hose (8), hard tube (11) and switch board form servo hydraulic system;
In the course of work, switch board gives an order signal to servo-valve (7), and servo-valve (7) controls vibrator (5) motion according to command signal; The displacement transducer and the described force snesor (2) that are excited at the same time device (5) inside feed back real-time sampling signal to switch board, switch board contrasts enforcement sampled signal and last command signal, the command signal that constantly adjustment is new in real time, controls accurately to the motion of vibrator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510938370.4A CN105388029A (en) | 2015-12-15 | 2015-12-15 | Overload vehicle oil-gas spring test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510938370.4A CN105388029A (en) | 2015-12-15 | 2015-12-15 | Overload vehicle oil-gas spring test device |
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| Publication Number | Publication Date |
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| CN105388029A true CN105388029A (en) | 2016-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510938370.4A Pending CN105388029A (en) | 2015-12-15 | 2015-12-15 | Overload vehicle oil-gas spring test device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105738100A (en) * | 2016-04-22 | 2016-07-06 | 北京理工大学 | Hydro-pneumatic spring performance testing system and testing method |
| CN105841904A (en) * | 2016-03-30 | 2016-08-10 | 北京航天发射技术研究所 | Test method for testing service life of hydro-pneumatic spring |
| CN106017951A (en) * | 2016-05-10 | 2016-10-12 | 中国北方车辆研究所 | Integrated simulated hydro-pneumatic suspension testing system with road load and environmental stress integration |
| CN108535001A (en) * | 2018-04-04 | 2018-09-14 | 北京理工大学 | A kind of hydro-pneumatic spring accumulator condition detecting system and method based on electromagnetic induction |
| CN112378675A (en) * | 2020-10-15 | 2021-02-19 | 国营武汉新宇机器厂 | Heavy-duty vehicle hydro-pneumatic spring test device |
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| CN2699036Y (en) * | 2004-11-15 | 2005-05-11 | 张义祥 | Hydraulic servo device |
| JP2007212383A (en) * | 2006-02-13 | 2007-08-23 | Bridgestone Corp | Vibrator of hydraulic buffer |
| CN201749032U (en) * | 2010-05-13 | 2011-02-16 | 三一重机有限公司 | Hydro-pneumatic suspension test bed of mining dump truck |
| CN201788092U (en) * | 2010-07-16 | 2011-04-06 | 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 | Simulation test device for heavy oil-gas suspension oil cylinder |
| CN202092877U (en) * | 2011-04-18 | 2011-12-28 | 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 | Communicated hydro-pneumatic suspension tester |
| CN102323027A (en) * | 2011-08-12 | 2012-01-18 | 三一重机有限公司 | Mining self-unloading vehicle oil gas suspension vibration testing stand |
| CN203672635U (en) * | 2014-01-27 | 2014-06-25 | 哈尔滨第一机械集团有限公司 | Comprehensive testing device for oil and gas suspension assembly |
-
2015
- 2015-12-15 CN CN201510938370.4A patent/CN105388029A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2699036Y (en) * | 2004-11-15 | 2005-05-11 | 张义祥 | Hydraulic servo device |
| JP2007212383A (en) * | 2006-02-13 | 2007-08-23 | Bridgestone Corp | Vibrator of hydraulic buffer |
| CN201749032U (en) * | 2010-05-13 | 2011-02-16 | 三一重机有限公司 | Hydro-pneumatic suspension test bed of mining dump truck |
| CN201788092U (en) * | 2010-07-16 | 2011-04-06 | 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 | Simulation test device for heavy oil-gas suspension oil cylinder |
| CN202092877U (en) * | 2011-04-18 | 2011-12-28 | 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 | Communicated hydro-pneumatic suspension tester |
| CN102323027A (en) * | 2011-08-12 | 2012-01-18 | 三一重机有限公司 | Mining self-unloading vehicle oil gas suspension vibration testing stand |
| CN203672635U (en) * | 2014-01-27 | 2014-06-25 | 哈尔滨第一机械集团有限公司 | Comprehensive testing device for oil and gas suspension assembly |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841904A (en) * | 2016-03-30 | 2016-08-10 | 北京航天发射技术研究所 | Test method for testing service life of hydro-pneumatic spring |
| CN105841904B (en) * | 2016-03-30 | 2019-08-06 | 北京航天发射技术研究所 | A kind of test method in hydro-pneumatic spring service life |
| CN105738100A (en) * | 2016-04-22 | 2016-07-06 | 北京理工大学 | Hydro-pneumatic spring performance testing system and testing method |
| CN105738100B (en) * | 2016-04-22 | 2018-07-24 | 北京理工大学 | A kind of hydro-pneumatic spring performance test system and test method |
| CN106017951A (en) * | 2016-05-10 | 2016-10-12 | 中国北方车辆研究所 | Integrated simulated hydro-pneumatic suspension testing system with road load and environmental stress integration |
| CN106017951B (en) * | 2016-05-10 | 2018-09-25 | 中国北方车辆研究所 | Integrated road load and environmental stress comprehensive simulation oleo-pneumatic suspension pilot system |
| CN108535001A (en) * | 2018-04-04 | 2018-09-14 | 北京理工大学 | A kind of hydro-pneumatic spring accumulator condition detecting system and method based on electromagnetic induction |
| CN108535001B (en) * | 2018-04-04 | 2019-07-16 | 北京理工大学 | A kind of hydro-pneumatic spring accumulator condition detecting system and method based on electromagnetic induction |
| CN112378675A (en) * | 2020-10-15 | 2021-02-19 | 国营武汉新宇机器厂 | Heavy-duty vehicle hydro-pneumatic spring test device |
| CN112378675B (en) * | 2020-10-15 | 2022-08-12 | 国营武汉新宇机器厂 | Heavy-duty vehicle hydro-pneumatic spring test device |
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Application publication date: 20160309 |