CN110082105B - Noise testing equipment for rack power-assisted steering device - Google Patents
Noise testing equipment for rack power-assisted steering device Download PDFInfo
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- CN110082105B CN110082105B CN201910447378.9A CN201910447378A CN110082105B CN 110082105 B CN110082105 B CN 110082105B CN 201910447378 A CN201910447378 A CN 201910447378A CN 110082105 B CN110082105 B CN 110082105B
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- 238000012360 testing method Methods 0.000 title claims abstract description 26
- 230000007246 mechanism Effects 0.000 claims description 55
- 230000009194 climbing Effects 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 230000006978 adaptation Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 2
- 238000000034 method Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
-
- 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
-
- 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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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
Abstract
The invention discloses noise testing equipment of a rack power-assisted steering device, which belongs to the technical field of noise testing equipment of rack power-assisted steering devices.
Description
Technical Field
The invention relates to the technical field of noise testing equipment of a rack power-assisted steering device, in particular to noise testing equipment of a rack power-assisted steering device.
Background
The rack power-assisted steering device is widely applied in the automobile industry, so that the power-assisted steering device plays an important role, the power-assisted steering device runs positively to generate noise, the noise of the power-assisted steering device needs to be controlled, the running noise of the rack power-assisted steering device needs to be tested before actual assembly and use, the existing testing equipment is easily interfered by external factors when detecting the noise, the noise is not accurately detected, meanwhile, the distance of the rack motion of the rack power-assisted steering device cannot be detected, and the motion travel track of the power-assisted steering device cannot be determined at any time.
Disclosure of Invention
The invention aims to provide a noise testing device for a rack power steering gear, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a rack power assisted steering ware noise test equipment, includes the support frame, the fixed mounting in support frame top has an upper mounting frame, central department fixed mounting has climbing mechanism on the support frame, climbing mechanism's top swing fit has the tray, the fixed pre-tightening mechanism that is provided with in left side wall of support frame, the fixed positioning column that is provided with four group's structures the same and with the tray looks adaptation in bottom of upper mounting frame, fixedly provided with hold-down mechanism corresponding with pre-tightening mechanism on the right side wall of support frame, the hydraulic system subassembly is installed at upper mounting frame top, the fixed electric cabinet that is provided with in right side wall top of support frame, the tray top is equipped with rack power assisted steering ware, the output of pre-tightening mechanism behind the fixed connection noise sensor with rack power assisted steering ware's left end fixed mounting, the fixed mounting of output of hold-down mechanism and rack power assisted steering ware, the below of hold-down mechanism is provided with the plug on the support frame, the fixed load system subassembly that is connected with hydraulic system subassembly, the bottom of upper mounting frame and the corresponding hold-down mechanism are provided with the rack power assisted steering ware, the equal pneumatic system subassembly is connected with the rack power assisted steering ware and the connecting rod and the type under the fixed connection in the left side of support frame.
Preferably, the jacking mechanism comprises a jacking cylinder group, a supporting disc is fixedly arranged at the top of the jacking cylinder group, a diaphragm type cylinder matched with the supporting disc is fixedly arranged on the supporting disc, and a cylinder band-type brake is assembled on the jacking cylinder group.
Preferably, the compressing mechanism comprises a fixing frame fixed on the supporting frame, the right side wall of the fixing frame is fixedly connected with a compressing cylinder, and the output end of the compressing cylinder is fixedly connected with a first pressure sensor.
Preferably, the hydraulic system component comprises an oil tank fixedly mounted at the top of the upper mounting frame through a bracket, an electromagnetic valve group is fixedly connected to the output end of the oil tank, the other end of the electromagnetic valve group is connected with a driving oil cylinder fixed at the center of the top of the upper mounting frame, a displacement sensor and a second pressure sensor are respectively fixedly arranged at the left output end and the right output end of the driving oil cylinder, and the left output end and the right output end of the driving oil cylinder are connected with a U-shaped mechanism.
Preferably, the electromagnetic valve group comprises a second electromagnetic valve and a third electromagnetic valve which are connected with the oil delivery end of the oil tank, and a first electromagnetic valve and a fourth electromagnetic valve which are connected with the oil inlet end of the oil tank.
Preferably, the load system component comprises a left oil cylinder and a right oil cylinder which are respectively connected with the first electromagnetic valve and the fourth electromagnetic valve through connecting oil pipes, and the output ends of the left oil cylinder and the right oil cylinder are respectively connected with a driving load.
Compared with the prior art, the invention has the beneficial effects that:
the structure of the invention is used for testing the noise generated when the rack power-assisted steering device runs, the motor of the rack power-assisted steering device provides power, when the rack power-assisted steering device rotates, the motor of the rack power-assisted steering device can drive the rack to move left and right, the rack can push the left connecting rod and the right connecting rod to move, the U-shaped mechanism is pushed by the connecting rod to act, the U-shaped mechanism is connected with the driving oil cylinder, so that the rack power-assisted steering device is connected with the load system component through the hydraulic system component, in the test process, the motor of the rack power-assisted steering device generates 5000N-7000N thrust to push the load system component to move back and forth, the noise generated when the power-assisted motor of the rack power-assisted steering device steers is simulated, the second pressure sensor is used for monitoring the distance of the back and forth movement of the rack, the hydraulic system component is used for driving the load system component to move back and forth, whether the noise of the rack power-assisted steering device at the moment meets the requirement or not is tested, the test step is simple, the test result is not easily influenced by external factors, and the test result is accurate.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a front view of the overall structure of the present invention;
FIG. 3 is a left side view of the overall structure of the present invention;
FIG. 4 is a schematic view of a jack mechanism according to the present invention;
FIG. 5 is a schematic view of the compressing mechanism of the present invention;
FIG. 6 is a schematic view of a plug structure according to the present invention;
FIG. 7 is a schematic diagram of the components of the load system of the present invention;
FIG. 8 is a schematic view of an assembly structure of an upper mounting frame of the present invention;
fig. 9 is a schematic diagram of the operation of the present invention.
In the figure: the hydraulic lifting device comprises a supporting frame 1, a lifting mechanism 2, a lifting cylinder group 21, a supporting disc 22, a diaphragm type cylinder 23, a cylinder band-type brake 24, a tray 3, a pre-tightening mechanism 4, a compressing mechanism 5, a fixing frame 51, a compressing cylinder 52, a first pressure sensor 53, a hydraulic system component 6, an oil tank 61, a solenoid valve 62, a solenoid valve 621, a solenoid valve 622, a solenoid valve 623, a solenoid valve 624, a driving oil cylinder 63, a displacement sensor 64, a second pressure sensor 65, an electric cabinet 7, a positioning column 8, a rack 9 power steering gear 10 plug, a load system component 11, a driving load 111, a left oil cylinder 112, a right oil cylinder 113, a mounting frame 12, a noise sensor 13, a pressing block cylinder 14, a connecting rod 15 and a type 16U.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-9, the present invention provides a technical solution: the utility model provides a rack power assisted steering ware noise test equipment, including support frame 1, support frame 1 top fixed mounting is equipped with mounting frame 12, center department fixed mounting has climbing mechanism 2 on the support frame 1, climbing mechanism 2's top movable mounting is equipped with tray 3, support frame 1's left side wall is fixed to be provided with pretension mechanism 4, mounting frame 12's bottom is fixed to be provided with four the same and with reference column 8 of tray 3 looks adaptation in structure, support frame 1's right side wall is last fixed to be provided with the hold-down mechanism 5 corresponding with pretension mechanism 4, mounting frame 12 top is installed hydraulic system subassembly 6, support frame 1's right side wall top is fixed to be provided with electric cabinet 7, tray 3 top is equipped with rack power assisted steering ware 9, behind pretension mechanism 4's output fixed connection noise sensor 13 and rack power assisted steering ware 9's left end fixed mounting, the fixed mounting of hold-down mechanism 5, the below of hold-down mechanism 5 is provided with the plug 10 of fixing on support frame 1, support frame 1's right front side is fixed to be provided with the load system subassembly 11 that is connected with hydraulic system subassembly 6, mounting frame 12 is last to be provided with the corresponding hold-down mechanism 5 with the hydraulic system subassembly, the left side and right side and the rack power assisted steering ware 9 is equipped with the connecting rod 16 in the type of connection of connecting rod 15, the support frame is equipped with the hydraulic system assembly 15 and the connecting rod 15, the type power assisted steering ware is connected with the connecting rod 15 in the left side power assisted steering ware is fixed to the side of the side system 15, the left side and the connecting rod 15 is connected with the side power assisted steering device 15, and the left side of the left side power assisted steering ware is connected with the left side 15.
The jacking mechanism 2 comprises a jacking cylinder group 21, a supporting disc 22 is fixedly arranged at the top of the jacking cylinder group 21, a diaphragm type cylinder 23 matched with the tray 3 is fixedly arranged on the supporting disc 22, and a cylinder band-type brake 24 is assembled on the jacking cylinder group 21;
the compressing mechanism 5 comprises a fixing frame 51 fixed on the supporting frame 1, a compressing cylinder 52 is fixedly connected to the right side wall of the fixing frame 51, a first pressure sensor 53 is fixedly connected to the output end of the compressing cylinder 52, and the thrust of the compressing cylinder 52 is monitored through the first pressure sensor 53;
the hydraulic system component 6 comprises an oil tank 61 fixedly arranged at the top of the upper mounting frame 12 through a bracket, an electromagnetic valve group 62 is fixedly connected to the output end of the oil tank 61, the other end of the electromagnetic valve group 62 is connected with a driving oil cylinder 63 fixed at the center of the top of the upper mounting frame 12, a displacement sensor 64 and a second pressure sensor are respectively fixedly arranged on the left output end and the right output end of the driving oil cylinder 63, and the left output end and the right output end of the driving oil cylinder 63 are connected with the U-shaped mechanism 16;
the electromagnetic valve group 62 comprises a second electromagnetic valve 622 and a third electromagnetic valve 623 which are connected with the oil delivery end of the oil tank 61, and a first electromagnetic valve 621 and a fourth electromagnetic valve 624 which are connected with the oil inlet end of the oil tank 61;
the load system assembly 11 comprises a left cylinder 112 and a right cylinder 113 which are respectively connected with a first electromagnetic valve 621 and a fourth electromagnetic valve 624 through connecting oil pipes, and the output ends of the left cylinder 112 and the right cylinder 113 are respectively connected with a driving load 111.
The using method of the noise testing equipment of the rack power-assisted steering device comprises the following steps:
s1: the rack power-assisted steering device 9 is placed on the tray 3, the positioning and supporting functions of the rack power-assisted steering device 9 are realized through the tray 3, then the jacking air cylinder group 21 in the jacking mechanism 2 is started through the electric cabinet 7, the jacking air cylinder group 21 extends outwards to drive the tray 3 on the supporting disc 22 to move upwards, and meanwhile the diaphragm type air cylinder 23 extends outwards to fix the tray 3 relative to the supporting disc 22 until the tray 3 reaches a preset position;
s2: when the tray 3 is lifted to a testing position, at this time, the jacking cylinder group 21 is positioned through the cylinder band-type brake 24, the pre-tightening mechanism 4 can be assembled with the left end of the rack power-assisted steering device 9, meanwhile, the four groups of positioning columns 8 can be assembled with the tray 3 in a positioning way, the electric cabinet 7 is used for starting the compressing mechanism 5, so that the compressing cylinder 52 in the compressing mechanism 5 extends outwards to realize the assembly of the compressing mechanism 5 and the right end of the rack power-assisted steering device 9, in addition, the pressing block cylinder 14 extends outwards, so that the left end and the right end of the rack power-assisted steering device 9 are respectively connected with the connecting rod 15, then the diaphragm cylinder 23 is retracted, the tray 3 and the supporting disc 22 can be separated, the cylinder band-type brake 24 is not closed to enable the jacking cylinder group 21 to retract, the pressing block cylinder 14 can realize the compression of the rack power-assisted steering device 9, the first pressure sensor 53 is used for monitoring the thrust of the compressing cylinder 52, so that the rack power-assisted steering device 9 can be kept motionless in the testing process, then the rack power-assisted steering device 9 is electrified through the plug 10, and the noise sensor 13 is used for testing the noise when the product is operated;
s3: when the rack power-assisted steering device 9 rotates, a motor of the rack power-assisted steering device 9 drives a rack to move left and right back and forth, the rack can push the left connecting rod 15 and the right connecting rod 15 to move, the connecting rod 15 pushes the U-shaped mechanism 16 to act, the U-shaped mechanism 16 is connected with the driving oil cylinder 63, the rack power-assisted steering device 9 is connected with the load system assembly 11 through the hydraulic system assembly 6, during the test process, the motor of the rack power-assisted steering device 9 generates 5000N-70000N thrust to push the load system assembly 11 to move back and forth, noise generated when the power-assisted motor of the rack power-assisted steering device 9 steers is simulated, the second pressure sensor 65 is used for monitoring whether the thrust generated by the power-assisted motor is abnormal or not, the displacement sensor 64 is used for monitoring the distance of the back and forth movement of the rack, the rack of the rack power-assisted steering device 9 pushes the U-shaped mechanism 16 to move back and forth through the connecting rod 15, the U-shaped mechanism 16 is connected with the driving oil cylinder 63, when the rack power steering 9 moves leftwards, the U-shaped mechanism 16 pushes the driving oil cylinder 63 to move leftwards, at the moment, the electromagnetic valve three 623 is opened, the electromagnetic valve one 621, the electromagnetic valve two 622 and the electromagnetic valve four 624 are closed, oil in the oil tank 61 enters a right cavity of the driving oil cylinder 63 from the electromagnetic valve three 623, oil in a left cavity of the driving oil cylinder 63 enters the left oil cylinder 112 and pushes the driving load 111 to move upwards, when the rack power steering 9 is reset, the electromagnetic valve one 621 and the electromagnetic valve two 622 are opened, the electromagnetic valve three 623 and the electromagnetic valve four 624 are closed, oil in the left oil cylinder 112 flows back into the oil tank 61 through the electromagnetic valve one 621, oil in the oil tank 61 enters the left cavity of the driving oil cylinder 63 through the electromagnetic valve two 622, and when the rack power steering 9 is reset, the driving load 111 is pushed to and fro is realized.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. Noise testing equipment of a rack power steering gear comprises a supporting frame (1), and is characterized in that: the utility model discloses a hydraulic power steering device, including support frame (1), support frame (1) top is fixed to be equipped with upper mounting frame (12), central department fixed mounting has climbing mechanism (2) on support frame (1), climbing mechanism's (2) top movable mounting has tray (3), support frame (1) left side wall is fixed to be provided with pretension mechanism (4), upper mounting frame (12) bottom is fixed to be provided with four sets of same and with tray (3) looks adaptation reference column (8), fixed be provided with on support frame (1) right side wall with pretension mechanism (4) corresponding hold-down mechanism (5), upper mounting frame (12) top is installed hydraulic system subassembly (6), support frame (1) right side wall top is fixed to be provided with electric cabinet (7), tray (3) top is equipped with rack power steering device (9), behind pretension mechanism (4) output fixed connection noise sensor (13) and rack power steering device's (9) left end fixed assembly, hold-down mechanism (5) output and rack power steering device's (9) right side wall (5) are fixed to be provided with hydraulic power steering device (5) on support frame (1) top is fixed to be provided with hydraulic power system subassembly (11), the lower briquetting cylinder (14) matched with the rack power-assisted steering device (9) is fixedly arranged on the left side and the right side of the bottom of the upper mounting frame (12), the connecting rod (15) matched with the rack power-assisted steering device (9) is movably assembled in the pre-tightening mechanism (4) and the compressing mechanism (5), the connecting rod (15) is fixedly connected with the hydraulic system component (6), the rack power-assisted steering device (9) is connected with the U-shaped mechanism (16) through the connecting rods (15) on the left side and the right side, and the U-shaped mechanism (16) is connected with the hydraulic system component (6).
2. A rack assist steering noise testing apparatus as defined in claim 1, wherein: the lifting mechanism (2) comprises a lifting cylinder group (21), a supporting disc (22) is fixedly arranged at the top of the lifting cylinder group (21), a diaphragm type cylinder (23) matched with the tray (3) is fixedly arranged on the supporting disc (22), and a cylinder band-type brake (24) is assembled on the lifting cylinder group (21).
3. A rack assist steering noise testing apparatus as defined in claim 1, wherein: the compressing mechanism (5) comprises a fixing frame (51) fixed on the supporting frame (1), a compressing cylinder (52) is fixedly connected to the right side wall of the fixing frame (51), and a first pressure sensor (53) is fixedly connected to the output end of the compressing cylinder (52).
4. A rack assist steering noise testing apparatus as defined in claim 1, wherein: the hydraulic system assembly (6) comprises an oil tank (61) fixedly installed at the top of an upper installation frame (12) through a support, an electromagnetic valve group (62) is fixedly connected to the output end of the oil tank (61), the other end of the electromagnetic valve group (62) is connected with a driving oil cylinder (63) fixed at the center of the top of the upper installation frame (12), a displacement sensor (64) and a second pressure sensor are fixedly arranged on the left output end and the right output end of the driving oil cylinder (63) respectively, and the left output end and the right output end of the driving oil cylinder (63) are connected with a U-shaped mechanism (16).
5. The noise testing apparatus of a rack assist steering gear as set forth in claim 4, wherein: the electromagnetic valve group (62) comprises a second electromagnetic valve (622) and a third electromagnetic valve (623) which are connected with the oil delivery end of the oil tank (61), and a first electromagnetic valve (621) and a fourth electromagnetic valve (624) which are connected with the oil inlet end of the oil tank (61).
6. A rack assist steering noise testing apparatus as defined in claim 5, wherein: the load system assembly (11) comprises a left oil cylinder (112) and a right oil cylinder (113) which are respectively connected with a first electromagnetic valve (621) and a fourth electromagnetic valve (624) through connecting oil pipes, and the output ends of the left oil cylinder (112) and the right oil cylinder (113) are respectively connected with a driving load (111).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910447378.9A CN110082105B (en) | 2019-05-27 | 2019-05-27 | Noise testing equipment for rack power-assisted steering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910447378.9A CN110082105B (en) | 2019-05-27 | 2019-05-27 | Noise testing equipment for rack power-assisted steering device |
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| Publication Number | Publication Date |
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| CN110082105A CN110082105A (en) | 2019-08-02 |
| CN110082105B true CN110082105B (en) | 2023-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910447378.9A Active CN110082105B (en) | 2019-05-27 | 2019-05-27 | Noise testing equipment for rack power-assisted steering device |
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| CN (1) | CN110082105B (en) |
Citations (8)
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|---|---|---|---|---|
| SU1040370A1 (en) * | 1982-05-21 | 1983-09-07 | Минский Дважды Ордена Ленина И Ордена Октябрьской Революции Автомобильный Завод | Steering mechanism testing stand |
| US4457164A (en) * | 1982-08-27 | 1984-07-03 | Castoe John H | Testing of oil seals in power-assisted rack and pinion steering units |
| DE202011050806U1 (en) * | 2011-07-26 | 2011-10-26 | Dspace Digital Signal Processing And Control Engineering Gmbh | Remote controlled steering tester |
| CN103674576A (en) * | 2013-12-19 | 2014-03-26 | 重庆顺方机械制造有限公司 | Testing device provided with rocker arm assembly simulating mechanism and load assembly simulating mechanism |
| CN203629856U (en) * | 2013-11-08 | 2014-06-04 | 重庆纪工汽车动力转向有限公司 | Steering system simulation system with electric steering wheel assembly |
| KR101832393B1 (en) * | 2017-11-07 | 2018-02-27 | (주)영일랩스 | Column type electric power steering performance test system |
| CN108181116A (en) * | 2017-12-21 | 2018-06-19 | 芜湖恒隆汽车转向***有限公司 | A kind of steering gear noise test rack mechanism loading |
| CN209992149U (en) * | 2019-05-27 | 2020-01-24 | 儒拉玛特自动化技术(苏州)有限公司 | Noise testing equipment for rack power-assisted steering device |
-
2019
- 2019-05-27 CN CN201910447378.9A patent/CN110082105B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1040370A1 (en) * | 1982-05-21 | 1983-09-07 | Минский Дважды Ордена Ленина И Ордена Октябрьской Революции Автомобильный Завод | Steering mechanism testing stand |
| US4457164A (en) * | 1982-08-27 | 1984-07-03 | Castoe John H | Testing of oil seals in power-assisted rack and pinion steering units |
| DE202011050806U1 (en) * | 2011-07-26 | 2011-10-26 | Dspace Digital Signal Processing And Control Engineering Gmbh | Remote controlled steering tester |
| CN203629856U (en) * | 2013-11-08 | 2014-06-04 | 重庆纪工汽车动力转向有限公司 | Steering system simulation system with electric steering wheel assembly |
| CN103674576A (en) * | 2013-12-19 | 2014-03-26 | 重庆顺方机械制造有限公司 | Testing device provided with rocker arm assembly simulating mechanism and load assembly simulating mechanism |
| KR101832393B1 (en) * | 2017-11-07 | 2018-02-27 | (주)영일랩스 | Column type electric power steering performance test system |
| CN108181116A (en) * | 2017-12-21 | 2018-06-19 | 芜湖恒隆汽车转向***有限公司 | A kind of steering gear noise test rack mechanism loading |
| CN209992149U (en) * | 2019-05-27 | 2020-01-24 | 儒拉玛特自动化技术(苏州)有限公司 | Noise testing equipment for rack power-assisted steering device |
Non-Patent Citations (1)
| Title |
|---|
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