CN1464293A - Car steering wheel assembly duty varying experimental bench system - Google Patents
Car steering wheel assembly duty varying experimental bench system Download PDFInfo
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- CN1464293A CN1464293A CN 02109786 CN02109786A CN1464293A CN 1464293 A CN1464293 A CN 1464293A CN 02109786 CN02109786 CN 02109786 CN 02109786 A CN02109786 A CN 02109786A CN 1464293 A CN1464293 A CN 1464293A
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- spring
- steering gear
- gear
- loading
- gear assembly
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Abstract
The present invention relates to one kind of steering gear assembly test bench as one automobile test apparatus. The steering gear assembly test bench consists of loading plant and converting mechanism, the loading plant includes two identical loading cases comprising case body, front pressure plate, spring, guide shaft and prestressing spring regulating mechanism. When the front pressure plate is pushed, the spring inside the case is compressed to produce variable linear pressure and the output end of the steering gear is applied with variable linear load. The maximum load depends on the rigidity, compressed stroke and pretightening force of the spring. The present invention has the advantages of stable performance, compact structure, wide application range, etc, and is suitable for the test of various kinds of automobile steering gear assembly.
Description
Technical field:
The present invention relates to a kind of steering assembly testing table in the automotive testing equipment, can be used for various types of automobile steering device assemblies and produce assembly line terminal capabilities detection and indoor performance and durability test.
Background technology:
In the prior art,, generally all need measure its key technical indexes and verify by bench test in order to judge the quality of automobile steering device.Some test is carried out under loading environment.Existing charger, general different with the structural shape of steering gear.For example:, be the pouring weight of being hung in the pulling of tooth bar end for pinion and-rack or its power steering stgear; Perhaps push-and-pull power cylinder.For circulating ball type or its power steering stgear, generally be at installation garden, sector shaft end dish, and the pouring weight hung of lifting or decline garden plate edge; Gear perhaps is installed, again by tooth bar push-and-pull power cylinder; The also installation monolithic rotary actuator that has is realized loading.In a word, in the prior art, above-mentioned various load modes are to loads such as being of applying of steering gear output terminal, the linear varying load that this kind load often bears in using with steering gear is actual is inconsistent, thereby also just can not reflect the actual operating characteristic commonly used of steering gear truly.
Summary of the invention:
For overcoming problems of the prior art, the purpose of this invention is to provide a kind of load change test platform that can simulate the actual operating mode commonly used of steering gear, this testing table can carry out load test to various types of automobile steering device general names, and the reliability height.
The present invention is achieved in that it is made up of charger and transformation mechanism, is characterized in that charger adopts two identical loading casees, and this case is made up of casing, front pressuring plate, spring, the axis of guide and initial tension of spring governor motion.When the pushing front pressuring plate, the spring in the case is compressed, and produces linear transformation power, thereby can realize the steering gear output terminal is applied linear varying load.Its peak load depends on rigidity, compression travel and the pretightning force of spring.
The present invention compared with prior art not only can simulate the part throttle characteristics under the actual operating mode commonly used of steering gear, and has advantages such as stable performance, compact conformation, applicability be wide.Can be used for the test of various types of automobiles steering assembly.
Description of drawings:
Accompanying drawing 1 is the loading box structure sketch of invention;
Accompanying drawing 2 is pinion and-rack and power steering stgear Performance Detection testing table synoptic diagram thereof;
Accompanying drawing 3 is circulating ball type and power steering stgear Performance Detection testing table synoptic diagram thereof;
Accompanying drawing 4 is engagement figure of beveloid gear and tooth bar in the transformation mechanism.
Embodiment:
Describe concrete structure of the present invention and enforcement in detail below in conjunction with accompanying drawing: load mode of the present invention is to realize by two identical loading casees (7) and transformation mechanism (6).This loading case is by casing (1), front pressuring plate (2), spring (3), the axis of guide (4), and initial tension of spring governor motion (5) is formed.When pushing front pressuring plate (2), pressing plate (2) moves axially along two axis of guides (4), and spring (3) is compressed, and produces linear transformation power, and maximum pressure changes with rigidity, compression travel and the pretightning force of spring.If determined the rigidity and the compression travel of spring as required, then maximum pressure depends on the pretightning force of spring.Therefore in loading case, be provided with bolt and nut governor motion (5), realize that the pretightning force of spring (3) is regulated.
Different the steering gear structure and the way of output need testing table that different load (power or moment) and displacements (line or angle) is provided.
For pinion and-rack and power steering stgear thereof, its output be the thrust and the displacement of the lines of tooth bar, so load case (7), provide power and displacement of the lines as long as respectively be provided with one at the tooth bar two ends, just can realize loading to this steering gear (8).(Fig. 2)
For circulating ball type and power steering stgear thereof, its output be the moment and the angular displacement of sector shaft, so need be converted into moment and displacement of the lines to the power and the displacement of the lines that load case (7) and provide, could realize its loading.Thereby designed transformation mechanism (6), to finish above-mentioned conversion.This transformation mechanism mainly is made up of casing (10), gear (11) and tooth bar (12).In order to eliminate the back lash of gear (11) and tooth bar (12), gear (11) is made the beveloid gear of small-angle.The additional load that produces for the mismachining tolerance of avoiding because of gear (11), with the geometrical axis a of gear (11) relatively its shaft centerline b offset downward a certain slight distance (Fig. 4).During test, this transformation mechanism is placed two centres (Fig. 3) that load case (7), gear shaft (9) and steering gear sector shaft (16) are coupled together with spline housing (13).Can realize like this circulating ball type and power steering stgear thereof are loaded.
When carrying out Performance Detection, because the load of steering gear output terminal is less, so available human control bearing circle is to steering gear input torque and corner.When carrying out durability test, then application drives device input torque and corner.For the power steering stgear test, need set up power source and corresponding valve and oil pipe etc.
This testing table is equipped with torque sensor and angular transducer below bearing circle, be used to measure the driving torque and the corner of steering gear input end.On the front pressuring plate of two loading casees, pressure transducer and linear movement pick-up are housed respectively, be used for the resistance and the displacement of the lines of prototype gear rack-and-pinion and power steering stgear thereof.When measuring circulating ball type and power steering stgear thereof, can on the gear shaft of transformation mechanism, load onto torque sensor and angular transducer, in order to the moment of resistance and the corner of measuring its output terminal.
Claims (3)
1, a kind of automobile steering device assembly testing bench system, generally form by charger and transformation mechanism, it is characterized in that charger adopts two identical loading casees, this case is by casing (1), front pressuring plate (2), spring (3), the axis of guide (4), and initial tension of spring governor motion (5) is formed.
2, automobile steering device assembly testing bench according to claim 1 is characterized in that described transformation mechanism adopts rack and pinion drive, and its gear is the small-angle beveloid gear, and relative its shaft centerline downward bias of its geometrical axis is from a certain slight distance.
3, automobile steering device assembly testing bench according to claim 1 is characterized in that described initial tension of spring governor motion adopts the bolt and nut governor motion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02109786 CN1464293A (en) | 2002-06-03 | 2002-06-03 | Car steering wheel assembly duty varying experimental bench system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02109786 CN1464293A (en) | 2002-06-03 | 2002-06-03 | Car steering wheel assembly duty varying experimental bench system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1464293A true CN1464293A (en) | 2003-12-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02109786 Pending CN1464293A (en) | 2002-06-03 | 2002-06-03 | Car steering wheel assembly duty varying experimental bench system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1464293A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100526840C (en) * | 2006-05-23 | 2009-08-12 | 比亚迪股份有限公司 | Automobile pipe column type electric power steering gear torsional fatigue test platform and test method |
| CN101975668A (en) * | 2010-08-30 | 2011-02-16 | 芜湖世特瑞转向系统有限公司 | Diverter fatigue test bench and operating method thereof |
| CN101726235B (en) * | 2008-10-31 | 2013-01-16 | 江苏罡阳动力转向器厂 | Detector for detecting symmetry of axial groove on shaft surface |
| CN106066242A (en) * | 2016-06-16 | 2016-11-02 | 杭州依维柯汽车传动技术有限公司 | Automotive transmission loading testboard and test control method thereof |
-
2002
- 2002-06-03 CN CN 02109786 patent/CN1464293A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100526840C (en) * | 2006-05-23 | 2009-08-12 | 比亚迪股份有限公司 | Automobile pipe column type electric power steering gear torsional fatigue test platform and test method |
| CN101726235B (en) * | 2008-10-31 | 2013-01-16 | 江苏罡阳动力转向器厂 | Detector for detecting symmetry of axial groove on shaft surface |
| CN101975668A (en) * | 2010-08-30 | 2011-02-16 | 芜湖世特瑞转向系统有限公司 | Diverter fatigue test bench and operating method thereof |
| CN101975668B (en) * | 2010-08-30 | 2013-02-13 | 芜湖世特瑞转向系统有限公司 | Diverter fatigue test bench and operating method thereof |
| CN106066242A (en) * | 2016-06-16 | 2016-11-02 | 杭州依维柯汽车传动技术有限公司 | Automotive transmission loading testboard and test control method thereof |
| CN106066242B (en) * | 2016-06-16 | 2018-11-30 | 杭州依维柯汽车传动技术有限公司 | Automotive transmission loading testboard and its test adjusting method |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |