CN108279133B - Storage logistics equipment electric power steering system test platform - Google Patents
Storage logistics equipment electric power steering system test platform Download PDFInfo
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- CN108279133B CN108279133B CN201711376274.0A CN201711376274A CN108279133B CN 108279133 B CN108279133 B CN 108279133B CN 201711376274 A CN201711376274 A CN 201711376274A CN 108279133 B CN108279133 B CN 108279133B
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- 238000012360 testing method Methods 0.000 title claims abstract description 57
- 238000003860 storage Methods 0.000 title claims description 7
- 238000001514 detection method Methods 0.000 claims abstract description 11
- 238000003466 welding Methods 0.000 claims abstract description 8
- 238000002474 experimental method Methods 0.000 claims abstract description 5
- 239000006247 magnetic powder Substances 0.000 claims description 17
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 238000011056 performance test Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009661 fatigue test Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
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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
- G01M17/06—Steering behaviour; Rolling behaviour
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- General Physics & Mathematics (AREA)
- Power Steering Mechanism (AREA)
Abstract
The invention discloses a test platform of an electric power steering system of warehouse logistics equipment, which comprises an EPS system assembly, a detection system and a laboratory support, wherein the EPS system assembly and the detection system are both arranged on the laboratory support; according to the invention, different angles of the steering wheel and the steering wheel can be simulated by changing the transmission ratio of the bevel gears, the gaps between the two other meshing bevel gears can be regulated in three degrees of freedom through the supporting plate, the supporting plate transverse moving plate and the U-shaped groove between the bottom plates of the experiment table and the connecting structure of the U-shaped groove, the axial movement of the input shaft is counteracted by the tapered roller bearing and the matched bearing seat, and the high-speed EPS system can stably run without strong vibration, and can be used for testing the performance of a certain key component of the EPS system of various vehicle types and also can be used for testing the performance of a system similar to the whole EPS system; the whole system has the advantages of convenient assembly and disassembly of each component, convenient part replacement and no direct welding.
Description
Technical Field
The invention relates to the technical field of automobile chassis performance testing equipment, in particular to a testing platform of an electric power steering system of storage logistics equipment.
Background
An electric power steering system (Electric Power Steering, abbreviated as EPS) is a power steering system which directly depends on a motor to provide auxiliary torque, and in recent years, the electric power steering system becomes a research hot spot in the field of domestic vehicles, has a mature technology abroad, and is still in a basic stage in China. The performance of EPS is directly related to the safety and reliability of the vehicle, driving comfort, and operational sensitivity and portability.
It is necessary to perform some series of performance tests on an electric power steering system before the system is put into production, and it is a serious consideration for researchers. However, at present, because the test tables and test methods of various types are different, the adopted test methods are also different, and the test table for a certain type or a certain type of test table is not shown.
The electric power steering system can be mechanically divided into a mechanical steering system and a power steering system, and the main components of the mechanical steering system in most electric power steering systems are torque signal acquisition structures, and the test requirements of the electric vehicle power steering systems of different styles or types cannot be met, so that the design of the experiment table with strong universality, reliable structure and simple test is a matter to be solved urgently.
Disclosure of Invention
The invention aims to solve the problem that the existing mechanical steering systems in the electric vehicle power-assisted steering system mainly adopt torque signal acquisition structures, so that the side view requirements of the electric vehicle power-assisted steering systems of different styles or types cannot be met, and provides a storage logistics equipment electric power-assisted steering system test platform which can be suitable for various electric power-assisted steering systems similar to storage logistics vehicles.
The invention realizes the above purpose through the following technical scheme: the test platform comprises an EPS system assembly, a detection system and a laboratory bench support, wherein the EPS system assembly and the detection system are both arranged on the laboratory bench support;
the experimental bench support comprises a support plate, support plate supports, support plate transverse moving plates and a test bench bottom plate, wherein the support plate and the support plate transverse moving plates are vertically arranged, the test bench bottom plate is horizontally arranged, two bottom corners of the support plate are fixed on the two support plate supports, the support plate is vertically arranged on the support plate transverse moving plates through the two support plate supports, two groups of U-shaped grooves which are vertically arranged are formed in the upper eave and the lower eave of the support plate transverse moving plates, the two support plate supports are arranged on the support plate transverse moving plates through one group of U-shaped grooves, and the whole body formed by the two support plate supports and the support plate can vertically move on the support plate transverse moving plates along the vertical direction; the test bed bottom plate is provided with a U-shaped groove which is horizontally arranged, the support plate transverse moving plate is arranged on the test bed bottom plate through the U-shaped groove on the test bed bottom plate, and the whole body consisting of the two support plate brackets, the support plate and the support plate transverse moving plate can longitudinally move on the test bed bottom plate along the horizontal direction; the support plate is provided with a group of U-shaped grooves which are horizontally arranged, a group of bearing seats are arranged on the support plate through the U-shaped grooves in the support plate, and the bearing seats can transversely move along the horizontal direction on the support plate;
the EPS system assembly comprises a steering wheel, a first rotating shaft, a first bearing seat, a first coupler, a first sensor base, a first torque sensor, a second coupler, a second rotating shaft, a second bearing seat, a first bevel gear, a second bevel gear, a third rotating shaft, a deep groove ball bearing, a third bearing seat, a torque signal acquisition device, an EPS base, a first straight gear, a gear shaft, a third coupler, a fourth coupler, a magnetic powder brake, a booster motor, a motor bracket and a motor base, wherein the detection system comprises a first torque sensor, a second torque sensor, a magnetic powder brake, a first torque display and a second torque display;
the steering wheel is sequentially connected with the first rotating shaft, the first coupling, the first torque sensor, the second coupling, the second rotating shaft and the first bevel gear, and the axial lines of the steering wheel, the first rotating shaft, the first coupling, the first torque sensor, the second coupling, the second rotating shaft and the first bevel gear are positioned on the same horizontal line which is parallel to the supporting plate and is perpendicular to the bottom plate of the test bed; the first rotating shaft is arranged on a first bearing seat through a first bearing, the first bearing seat is arranged on the supporting plate, the second rotating shaft is arranged on a second bearing seat through a second bearing, and the second bearing seat is arranged on the supporting plate; the first torque sensor is fixed on the supporting plate through a first sensor base;
the second bevel gear is sequentially connected with a third rotating shaft, a torque signal acquisition device, an EPS base, a gear shaft, a third coupler, a second torque sensor, a fourth coupler and a magnetic powder brake, and the axial lines of the second bevel gear, the third rotating shaft, the torque signal acquisition device, the EPS base, the gear shaft, the third coupler, the second torque sensor, the fourth coupler and the magnetic powder brake are positioned on the same horizontal line which is perpendicular to the supporting plate and parallel to the bottom plate of the test bed; the third rotating shaft is arranged on a third bearing seat through a deep groove ball bearing, the third bearing seat is arranged on the test bed bottom plate through a bearing seat base, and the magnetic powder brake is arranged on the test bed bottom plate; the first straight gear is arranged on the gear shaft, the power-assisted motor is arranged on the motor base through a motor bracket, the motor base is fixed on the bottom plate of the test bed, the motor head of the power-assisted motor is connected with the second straight gear in a matched manner through a gear, the first straight gear and the second straight gear are meshed with each other, and the first straight gear is driven to move through the second straight gear when the power-assisted motor moves; the first torque sensor is fixed on the test bed bottom plate through a first sensor base, and the first torque display is connected with the first torque sensor and used for displaying the reading of the first torque sensor; the second torque sensor is fixed on the test bed bottom plate through a second sensor base, and the second torque display is connected with the second torque sensor and used for displaying the reading of the second torque sensor; the first bevel gear is connected with the second bevel gear in a matched mode.
Furthermore, the first bearing and the second bearing are tapered roller bearings, the steering wheel, the first rotating shaft, the first coupler, the first torque sensor, the second coupler, the second rotating shaft and the bevel gear are sequentially connected to form an input shaft of the EPS system assembly, and the input shaft is fixed on the supporting plate through the two tapered roller bearings, so that the input shaft is limited to axially move along the horizontal linear direction parallel to the supporting plate.
Further, the third rotating shaft is connected with one side of the torque signal acquisition device through a welding flange, and the EPS base is connected with the other side of the torque signal acquisition device through a welding flange.
The invention has the beneficial effects that: according to the invention, different angles of the steering wheel and the steering wheel can be simulated by changing the transmission ratio of the bevel gears, and the gap between the other two meshing bevel gears can be regulated in three degrees of freedom through the supporting plate, the supporting plate transverse moving plate and the U-shaped groove between the bottom plates of the experiment table and the connecting structure of the U-shaped groove. The axial movement of the input shaft is counteracted by the tapered roller bearing and the matched bearing seat, so that the system can stably run without strong vibration under the condition of high rotation speed, can be used for performance test of a plurality of key components of EPS systems of various vehicle types, and can also be used for performance test of systems similar to the whole set of EPS systems; the whole system has the advantages of convenient assembly and disassembly of each component, convenient part replacement and no direct welding.
Drawings
Fig. 1 is a schematic diagram of a front view structure of a testing platform of an electric power steering system of a warehouse logistics equipment.
Fig. 2 is a schematic diagram of a rear view structure of a testing platform of an electric power steering system of a warehouse logistics equipment.
FIG. 3 is a schematic view of the structure of the stand of the present invention.
Fig. 4 is a schematic structural view of the support plate bracket of the present invention.
Fig. 5 is a top view of the bench bottom of the present invention.
Fig. 6 is a top view of the support plate laterally moving plate of the present invention.
Fig. 7 is a left side view of the support plate of the present invention.
In the figure, the steering wheel comprises a 1-steering wheel, a 2-first rotating shaft, a 3-first bearing seat, a 4-supporting plate, a 5-first coupler, a 6-first torque sensor, a 7-first sensor base, an 8-second coupler, a 9-second rotating shaft, a 10-second bearing seat, a 11-first bevel gear, a 12-supporting plate bracket, a 13-supporting plate transverse moving plate, a 14-test bed bottom plate, a 15-second bevel gear, a 16-third rotating shaft, a 17-bearing seat base, a 18-third bearing seat, a 19-torque signal acquisition device, a 20-eps base, a 21-first straight gear, a 22-gear shaft, a 23-third coupler, a 24-second sensor base, a 25-second torque sensor, a 26-fourth coupler, a 27-magnetic powder brake, a 28-booster motor, a 29-motor bracket, a 30-second straight gear and a 31-motor base.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
as shown in FIG. 1, the test platform of the electric power steering system of the storage logistics equipment comprises an EPS system assembly, a detection system and a laboratory bench support, wherein the EPS system assembly and the detection system are both installed on the laboratory bench support.
The experiment table support comprises a support plate 4, support plate supports 12, support plate transverse moving plates 13 and a test table bottom plate 14, wherein the support plate 4 and the support plate transverse moving plates 13 are vertically arranged, the test table bottom plate 14 is horizontally arranged, two bottom corners of the support plate 4 are fixed on the two support plate supports 12, the support plate 4 is vertically arranged on the support plate transverse moving plates 13 through the two support plate supports 12, two groups of U-shaped grooves which are vertically arranged are formed in the upper eave and the lower eave of the support plate transverse moving plates 13, the two support plate supports 12 are arranged on the support plate transverse moving plates 13 through one group of U-shaped grooves, and the whole body formed by the two support plate supports 12 and the support plate 4 can vertically move on the support plate transverse moving plates 13 along the vertical direction; the test bed bottom plate 14 is provided with a U-shaped groove which is horizontally arranged, the support plate transverse moving plate 13 is arranged on the test bed bottom plate 14 through the U-shaped groove on the test bed bottom plate 14, and the whole formed by the two support plate brackets 12, the support plate 4 and the support plate transverse moving plate 13 can longitudinally move on the test bed bottom plate 14 along the horizontal direction; be equipped with a set of U type groove that the level set up in the backup pad 4, a set of bearing frame passes through the U type groove in the backup pad 4 and installs on backup pad 4, and the bearing frame can carry out lateral shifting along the horizontal direction in backup pad 4.
The EPS system assembly comprises a steering wheel 1, a first rotating shaft 2, a first bearing seat 3, a first coupler 5, a first sensor base 7, a first torque sensor 6, a second coupler 8, a second rotating shaft 9, a second bearing seat 10, a first bevel gear 11, a second bevel gear 15, a third rotating shaft 16, a deep groove ball bearing, a third bearing seat 18, a torque signal acquisition device 19, an EPS base 20, a first straight gear 21, a gear shaft 22, a third coupler 23, a fourth coupler 26, a magnetic powder brake 27, a booster motor 28, a motor bracket 29 and a motor base 31, and the detection system comprises the first torque sensor 6, the second torque sensor 25, the magnetic powder brake 27, a first torque display and a second torque display.
The steering wheel 1 is sequentially connected with a first rotating shaft 2, a first coupler 5, a first torque sensor 6, a second coupler 8, a second rotating shaft 9 and a first bevel gear 11, and the axes of the steering wheel 1, the first rotating shaft 2, the first coupler 5, the first torque sensor 6, the second coupler 8, the second rotating shaft 9 and the first bevel gear 11 are positioned on the same horizontal straight line which is parallel to the supporting plate 4 and is perpendicular to the bottom plate 14 of the test bed; the first rotating shaft 2 is mounted on a first bearing seat 3 through a first bearing, the first bearing seat 3 is mounted on the supporting plate 4, the second rotating shaft 9 is mounted on a second bearing seat 10 through a second bearing, and the second bearing seat 10 is mounted on the supporting plate 4; the first torque sensor 6 is fixed to the support plate 4 by a first sensor mount 7.
The second bevel gear 15 is sequentially connected with the third rotating shaft 16, the torque signal acquisition device 19, the EPS base 20, the gear shaft 22, the third coupler 23, the second torque sensor 25, the fourth coupler 26 and the magnetic powder brake 27, and the axes of the second bevel gear 15, the third rotating shaft 16, the torque signal acquisition device 19, the EPS base 20, the gear shaft 22, the third coupler 23, the second torque sensor 25, the fourth coupler 26 and the magnetic powder brake 27 are positioned on the same horizontal straight line which is perpendicular to the support plate 4 and parallel to the test bed bottom plate 14; the third rotating shaft 16 is mounted on a third bearing seat 18 through a deep groove ball bearing, the third bearing seat 18 is mounted on the test bed bottom plate 14 through a bearing seat base 17, and the magnetic powder brake 27 is mounted on the test bed bottom plate 14; the first straight gear 21 is arranged on the gear shaft 22, the power-assisted motor 28 is arranged on the motor base 31 through the motor bracket 29, the motor base 31 is fixed on the test bed bottom plate 14, the motor head of the power-assisted motor 28 is connected with the second straight gear 30 in a matched manner through the gear, the first straight gear 21 and the second straight gear 30 are meshed with each other, and the power-assisted motor 28 drives the first straight gear 21 to move through the second straight gear 30 when moving; the first torque sensor 6 is fixed on the test bed base plate 14 through a first sensor base 7, and the first torque display is connected with the first torque sensor 6 and is used for displaying the reading of the first torque sensor 6; the second torque sensor 25 is fixed on the test bed base plate 14 through a second sensor base 24, and the second torque display is connected with the second torque sensor 25 and is used for displaying the reading of the second torque sensor 25; the first bevel gear 11 is in fit connection with the second bevel gear 15.
The steering wheel 1, the first rotating shaft 2, the first coupler 5, the first torque sensor 6, the second coupler 8, the second rotating shaft 9 and the bevel gear are sequentially connected to form an input shaft of the EPS system assembly, and the input shaft is fixed on the supporting plate 4 through the two tapered roller bearings, so that the input shaft is limited to axially float along the horizontal linear direction parallel to the supporting plate 4.
The third rotating shaft 16 is connected with one side of the torque signal acquisition device 19 through a welding flange, and the EPS base 20 is connected with the other side of the torque signal acquisition device 19 through a welding flange.
The invention uses a magnetic powder brake to simulate the tire friction force during steering, and respectively measures the resistance between a first rotating shaft serving as an input shaft and a third rotating shaft serving as an output shaft by using a first torque sensor and a second torque sensor; other electric power steering mechanisms are basically unchanged, and the situation that the steering wheel and the wheels of the real vehicle type steering system rotate at different angles can be simulated by changing the transmission ratio of the first bevel gear and the second bevel gear; the most appropriate gear transmission ratio of the first straight gear and the second straight gear can be tested by changing the transmission ratio between the first straight gear and the second straight gear, and in addition, a belt pulley, a belt and a driving motor are added to the first rotating shaft serving as an input shaft, so that a fatigue test can be performed.
The above embodiments are only preferred embodiments of the present invention, and are not limiting to the technical solutions of the present invention, and any technical solution that can be implemented on the basis of the above embodiments without inventive effort should be considered as falling within the scope of protection of the patent claims of the present invention.
Claims (1)
1. The utility model provides a storage logistics equipment electric power steering system test platform which characterized in that: the system comprises an EPS system assembly, a detection system and a laboratory support, wherein the EPS system assembly and the detection system are both arranged on the laboratory support;
the experiment table support comprises a support plate (4), support plate supports (12), support plate transverse moving plates (13) and a test table bottom plate (14), wherein the support plate (4) and the support plate transverse moving plates (13) are vertically arranged, the test table bottom plate (14) is horizontally arranged, two bottom corners of the support plate (4) are fixed on the two support plate supports (12), the support plate (4) is vertically arranged on the support plate transverse moving plates (13) through the two support plate supports (12), two groups of U-shaped grooves which are vertically arranged are formed in the upper eave and the lower eave of the support plate transverse moving plates (13), the two support plate supports (12) are respectively arranged on the support plate transverse moving plates (13) through a group of U-shaped grooves, and the whole body formed by the two support plate supports (12) and the support plate (4) can vertically move in the vertical direction on the support plate transverse moving plates (13); the test bed bottom plate (14) is provided with a U-shaped groove which is horizontally arranged, the support plate transverse moving plate (13) is arranged on the test bed bottom plate (14) through the U-shaped groove on the test bed bottom plate (14), and the whole body consisting of the two support plate brackets (12), the support plate (4) and the support plate transverse moving plate (13) can longitudinally move on the test bed bottom plate (14) along the horizontal direction; the support plate (4) is provided with a group of U-shaped grooves which are horizontally arranged, a group of bearing seats are arranged on the support plate (4) through the U-shaped grooves on the support plate (4), and the bearing seats can transversely move on the support plate (4) along the horizontal direction;
the EPS system assembly comprises a steering wheel (1), a first rotating shaft (2), a first bearing seat (3), a first coupler (5), a first sensor base (7), a first torque sensor (6), a second coupler (8), a second rotating shaft (9), a second bearing seat (10), a first bevel gear (11), a second bevel gear (15), a third rotating shaft (16), a deep groove ball bearing, a third bearing seat (18), a torque signal acquisition device (19), an EPS base (20), a first straight gear (21), a gear shaft (22), a third coupler (23), a fourth coupler (26), a magnetic powder brake (27), a booster motor (28), a motor bracket (29) and a motor base (31), wherein the detection system comprises a first torque sensor (6), a second torque sensor (25), a magnetic powder brake (27), a first torque display and a second torque display;
the steering wheel (1) is sequentially connected with a first rotating shaft (2), a first coupling (5), a first torque sensor (6), a second coupling (8), a second rotating shaft (9) and a first bevel gear (11), and the axes of the steering wheel (1), the first rotating shaft (2), the first coupling (5), the first torque sensor (6), the second coupling (8), the second rotating shaft (9) and the first bevel gear (11) are positioned on the same horizontal line which is parallel to the supporting plate (4) and is perpendicular to the bottom plate (14) of the test bench; the first rotating shaft (2) is arranged on a first bearing seat (3) through a first bearing, the first bearing seat (3) is arranged on the supporting plate (4), the second rotating shaft (9) is arranged on a second bearing seat (10) through a second bearing, and the second bearing seat (10) is arranged on the supporting plate (4); the first torque sensor (6) is fixed on the supporting plate (4) through a first sensor base (7);
the second bevel gear (15) is sequentially connected with a third rotating shaft (16), a torque signal acquisition device (19), an EPS base (20), a gear shaft (22), a third coupler (23), a second torque sensor (25), a fourth coupler (26) and a magnetic powder brake (27), and the axes of the second bevel gear (15), the third rotating shaft (16), the torque signal acquisition device (19), the EPS base (20), the gear shaft (22), the third coupler (23), the second torque sensor (25), the fourth coupler (26) and the magnetic powder brake (27) are positioned on the same horizontal line which is perpendicular to the supporting plate (4) and parallel to the bottom plate (14) of the test bench; the third rotating shaft (16) is arranged on a third bearing seat (18) through a deep groove ball bearing, the third bearing seat (18) is arranged on the test bed bottom plate (14) through a bearing seat base (17), and the magnetic powder brake (27) is arranged on the test bed bottom plate (14); the first straight gear (21) is arranged on the gear shaft (22), the power-assisted motor (28) is arranged on the motor base (31) through the motor bracket (29), the motor base (31) is fixed on the test bed bottom plate (14), the motor head of the power-assisted motor (28) is connected with the second straight gear (30) in a matched manner through the gear, the first straight gear (21) and the second straight gear (30) are meshed with each other, and the power-assisted motor (28) drives the first straight gear (21) to move through the second straight gear (30) when moving; the first torque display is connected with the first torque sensor (6) and is used for displaying the reading of the first torque sensor (6); the second torque sensor (25) is fixed on the test bed base plate (14) through a second sensor base (24), and the second torque display is connected with the second torque sensor (25) and is used for displaying the reading of the second torque sensor (25); the first bevel gear (11) is connected with the second bevel gear (15) in a matching way;
the steering wheel (1), the first rotating shaft (2), the first coupler (5), the first torque sensor (6), the second coupler (8), the second rotating shaft (9) and the bevel gear are sequentially connected to form an input shaft of the EPS system assembly, and the input shaft is fixed on the supporting plate (4) through the two tapered roller bearings and is limited to axially float along a horizontal straight line direction parallel to the supporting plate (4);
the third rotating shaft (16) is connected with one side of the torque signal acquisition device (19) through a welding flange, and the EPS base (20) is connected with the other side of the torque signal acquisition device (19) through a welding flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711376274.0A CN108279133B (en) | 2017-12-19 | 2017-12-19 | Storage logistics equipment electric power steering system test platform |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711376274.0A CN108279133B (en) | 2017-12-19 | 2017-12-19 | Storage logistics equipment electric power steering system test platform |
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| CN108279133A CN108279133A (en) | 2018-07-13 |
| CN108279133B true CN108279133B (en) | 2023-11-21 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111060329B (en) * | 2020-01-02 | 2024-06-11 | 浙江工业大学 | Performance test equipment for electric power steering system |
| CN111060333B (en) * | 2020-01-02 | 2024-06-07 | 浙江工业大学 | Electric power steering system performance test equipment based on industrial transport vehicle |
| CN111060332B (en) * | 2020-01-02 | 2024-06-07 | 浙江工业大学 | Electric power steering system performance test system of warehouse logistics vehicle |
| CN111060331A (en) * | 2020-01-02 | 2020-04-24 | 浙江工业大学 | Performance test platform for electric power steering system of industrial transport vehicle |
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