CN110455459B - Dynamic sealing test bed for speed reducer of pure electric passenger car - Google Patents
Dynamic sealing test bed for speed reducer of pure electric passenger car Download PDFInfo
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- CN110455459B CN110455459B CN201910706500.XA CN201910706500A CN110455459B CN 110455459 B CN110455459 B CN 110455459B CN 201910706500 A CN201910706500 A CN 201910706500A CN 110455459 B CN110455459 B CN 110455459B
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- speed reducer
- heating
- support frame
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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
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
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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
- G01M3/00—Investigating fluid-tightness of structures
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Devices For Use In Laboratory Experiments (AREA)
Abstract
The utility model provides a pure electric passenger car is with reduction gear dynamic seal test bench, including the mounting bracket, direct current motor, a hall sensor for detecting direct current motor rotational speed, heating device, industry air-cooler and control system, detect direct current motor's rotational speed through hall sensor, utilize the thermocouple to detect the temperature of reduction gear simultaneously, and carry out analysis, calculation by PLC control box to rotational speed and temperature, control direct current motor's rotational speed, simultaneously control the temperature of reduction gear through five infrared ceramic hot plates and industry air-cooler, and display direct current motor rotational speed value and reduction gear temperature value by PLC control display panel, realize the control of reduction gear rotational speed and temperature at last. The invention provides a dynamic sealing test bed for a speed reducer of a pure electric passenger car, which automatically and stably realizes the detection of the dynamic sealing performance of the speed reducer of the pure electric passenger car and has the advantages of convenient use, simple operation, high accuracy and the like.
Description
Technical Field
The invention relates to the technical field of speed reducer test tables, in particular to a dynamic sealing test table for a speed reducer of a pure electric passenger car.
Background
As one of the important points of development of the automobile industry in recent years, a pure electric automobile has been rapidly developed in recent years. Because the pure electric vehicle is different from the traditional fuel vehicle, a traditional speed changer is not carried on the pure electric vehicle, but only a group of speed reducers are carried on the pure electric vehicle, and a gear shifting function is not provided. The existing speed changer test bed at home and abroad can be used for performance test of the electric automobile speed reducer. However, the existing speed changer test bed at home and abroad is used for dynamic sealing test in the performance test of the electric automobile speed reducer, different rotation speeds and temperature combinations are required for the test according to the dynamic sealing test requirements in the QC/T1022 standard, the test piece is required to be heated when the rotation speed is low, and the test piece is required to be cooled when the rotation speed is high. The existing speed reducer test bed is poor in safety and reliability, relatively large in energy consumption and inflexible in speed control mode, and the highest input speed required by the speed reducer test can be output only by increasing the speed through a speed increasing box due to the fact that the rotating speed of an alternating-current variable-frequency motor is too low. The traditional test bed is difficult to heat and cool the speed reducer, and the requirements of dynamic seal tests on test temperatures under different working conditions are difficult to meet.
Disclosure of Invention
In order to overcome the defect of poor safety and reliability in the existing dynamic sealing test technology of the speed reducer of the pure electric vehicle, the invention provides the dynamic sealing test bed for the speed reducer of the pure electric vehicle, which automatically and stably realizes the detection of the dynamic sealing performance of the speed reducer of the pure electric vehicle, and has the advantages of accurate rotation speed and temperature control, convenient use, simple operation, high accuracy and the like.
The technical scheme adopted for solving the technical problems is as follows:
The utility model provides a pure electric passenger car is with reduction gear dynamic seal test bench, includes mounting bracket, direct current motor, is used for detecting hall sensor, heating device, industry air-cooler and the control system of direct current motor rotational speed, direct current motor installs on the front side of mounting bracket, direct current motor passes through the reduction gear connection pad and is connected with the reduction gear, the reduction gear passes through the reduction gear fixing base and installs on the mounting bracket, hall sensor installs on the reduction gear fixing base, control system includes PLC control display panel, PLC control box and direct current constant voltage power supply, PLC control display panel, direct current constant voltage power supply are connected with the PLC control box respectively, PLC control display panel passes through the display mount and installs on the front side of mounting bracket;
The heating device comprises a heating fixed support frame, a heating sliding support frame and five infrared ceramic heating plates, wherein the heating fixed support frame is fixedly arranged on the rear side of the mounting frame, the heating sliding support frame is arranged in the upper part of the heating fixed support frame in a vertically sliding way through an up-down sliding mechanism, the speed reducer is simultaneously positioned in the heating sliding support frame and the heating fixed support frame, the five infrared ceramic heating plates surround the speed reducer, four infrared ceramic heating plates are respectively arranged on the left side, the right side, the lower side and the rear side of the heating sliding support frame, the other infrared ceramic heating plate is arranged on the upper side of the heating fixed support frame through an angle adjusting plate, the heating angle of the other infrared ceramic heating plate can be adjusted through the angle adjusting plate, and a thermocouple for detecting the temperature of the speed reducer is further arranged on the speed reducer;
The industrial air cooler is arranged at the rear of the mounting frame, is opposite to the speed reducer, and is mounted on the industrial air cooler support frame;
The Hall sensor and the thermocouple are respectively connected with the PLC control box, the PLC control box is respectively connected with the direct current motor, the five infrared ceramic heating plates, the industrial air cooler and the up-down sliding mechanism, the rotating speed of the direct current motor is detected through the Hall sensor, meanwhile, the temperature of the speed reducer is detected through the thermocouple, the rotating speed and the temperature are analyzed and calculated through the PLC control box, the rotating speed of the direct current motor is controlled, meanwhile, the temperature of the speed reducer is controlled through the five infrared ceramic heating plates and the industrial air cooler, the rotating speed value of the direct current motor and the temperature value of the speed reducer are displayed through the PLC control display panel, and finally, the rotating speed and the temperature of the speed reducer are controlled.
Further, the up-down sliding mechanism comprises four pulley blocks and two air cylinders, four corner edges of the heating sliding support frame are respectively arranged on the heating fixed support frame through the four pulley blocks, the two air cylinders are arranged below the heating sliding support frame in a diagonal manner, and each air cylinder is arranged on the heating fixed support frame through an air cylinder support seat;
the heating sliding support frame is guided by the four pulley blocks and can slide up and down under the driving of the two cylinders.
Still further, the industrial air cooler support frame is a liftable support frame.
Still further, be equipped with the adjustable callus on sole of height-adjustable on the mounting bracket bottom four corners, the mounting bracket includes preceding mounting bracket and back mounting bracket, mounting panel and automatically controlled mounting panel are installed to preceding mounting bracket, automatically controlled mounting panel is located under the upper mounting panel, the mounting panel is installed down to the back mounting bracket, direct current motor passes through direct current motor installation base and installs on the upper mounting panel, direct current motor installation base is located the rear of reduction gear fixing base, the display mount is also installed on the upper mounting panel, PLC control box and direct current stabilized power supply install on automatically controlled mounting panel, the heating fixed bolster is installed on the mounting panel down.
Still further, the direct current motor is a high-speed direct current motor.
Still further, install the infrared ceramic heating plate in the upside of the fixed support frame of heating, this infrared ceramic heating plate is fixed on the section bar, is equipped with the bolt on the one end of section bar, is equipped with the semicircle inslot on the angle modulation board, the bolt penetrates the semicircle inslot and can slide in this semicircle inslot, locks the bolt through lock nut simultaneously.
The beneficial effects of the invention are mainly shown in the following steps: the invention uses a direct current motor to directly drive a speed reducer, uses a Hall sensor to measure the rotating speed of the direct current motor, and uses a thermocouple to measure the temperature of the speed reducer, uses a PLC control box to analyze and calculate the rotating speed temperature, uses an infrared ceramic heating plate and an industrial air cooler to control the temperature of the speed reducer, uses the PLC to control the rotating speed of the direct current motor, uses a display to monitor the rotating speed value of the direct current motor and the temperature value of the speed reducer in real time, and automatically controls according to a set program; the invention automatically and stably realizes the detection of the dynamic sealing performance of the speed reducer for the pure electric passenger car, has accurate rotation speed and temperature control, and has the advantages of convenient use, simple operation, high accuracy, wide application range and the like;
Meanwhile, the infrared ceramic heating plate of the test bed can be used for adjusting angles and distances through the heating fixed support frame, the heating slidable support frame, the air cylinder, the angle adjusting plate and the pulley block, and is applicable to speed reducer tests with different shapes;
The test bed speed reducer is installed on the speed reducer fixing seat through the speed reducer connecting disc support, the speed reducer installation of different shapes can be realized through replacing the connecting disc support, and the installation and the debugging are convenient.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a left side view of the present invention.
Fig. 3 is a cross-sectional view of A-A of fig. 2.
Fig. 4 is a cross-sectional view of B-B of fig. 2.
Fig. 5 is an assembly view of the decelerator and the dc motor.
Fig. 6 is a schematic diagram of the assembly of the angle adjusting plate and the infrared ceramic heating plate.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Referring to fig. 1 to 6, a dynamic sealing test stand for a speed reducer of a pure electric passenger car comprises a mounting frame 2, a direct current motor 10, a hall sensor 21 for detecting the rotating speed of the direct current motor 10, a heating device, an industrial air cooler 1 and a control system, wherein the direct current motor 10 is mounted on the front side of the mounting frame 2, the direct current motor 10 is connected with the speed reducer 1 through a speed reducer connecting disc 9, the speed reducer 1 is mounted on the mounting frame 2 through a speed reducer fixing seat 8, the hall sensor 21 is mounted on the speed reducer fixing seat 8, the control system comprises a PLC control display panel 11, a PLC control box 19 and a direct current stabilized power supply 20, the PLC control display panel 11 and the direct current stabilized power supply 20 are respectively connected with the PLC control box 19, and the PLC control display panel 11 is mounted on the front side of the mounting frame 2 through a display fixing frame 6;
The heating device comprises a heating fixed support frame 4, a heating slidable support frame 12 and five infrared ceramic heating plates 15, wherein the heating fixed support frame 4 is fixedly arranged on the rear side of the mounting frame 2, the heating slidable support frame 12 is arranged in the upper part of the heating fixed support frame 4 in a vertically sliding way through an up-down sliding mechanism, the speed reducer 14 is simultaneously positioned in the heating slidable support frame 12 and the heating fixed support frame 4, the five infrared ceramic heating plates 15 surround the speed reducer 14, four infrared ceramic heating plates are respectively arranged on the left side, the right side, the lower side and the rear side of the heating slidable support frame 12, the other infrared ceramic heating plate is arranged on the upper side of the heating fixed support frame 4 through an angle adjusting plate 16, the heating angle of the other infrared ceramic heating plate is adjustable through the angle adjusting plate 16, and a thermocouple 22 for detecting the temperature of the speed reducer is further arranged on the speed reducer 14;
The industrial air cooler 1 is arranged behind the mounting frame 2, is opposite to the speed reducer 14, and is mounted on an industrial air cooler support frame;
The Hall sensor 21 and the thermocouple 22 are respectively connected with the PLC control box 19, the PLC control box 19 is respectively connected with the direct current motor 10, the five infrared ceramic heating plates 15, the industrial air cooler 1 and the up-down sliding mechanism, the rotating speed of the direct current motor 10 is detected through the Hall sensor 21, meanwhile, the temperature of the speed reducer 14 is detected through the thermocouple 22, the rotating speed and the temperature are analyzed and calculated through the PLC control box 19, the rotating speed of the direct current motor 10 is controlled, meanwhile, the temperature of the speed reducer 14 is controlled through the five infrared ceramic heating plates 15 and the industrial air cooler 1, the rotating speed value of the direct current motor and the temperature value of the speed reducer are displayed through the PLC control display panel 11, and finally, the rotating speed and the temperature of the speed reducer are controlled.
Further, the up-down sliding mechanism comprises four pulley blocks 17 and two air cylinders 13, four corner edges of the heating slidable supporting frame 12 are respectively arranged on the heating fixed supporting frame 4 through the four pulley blocks, the two air cylinders 13 are arranged below the heating slidable supporting frame 12 in a diagonal manner, and each air cylinder 13 is arranged on the heating fixed supporting frame 4 through an air cylinder supporting seat;
the heating slidable support frame 12 is guided by four pulley blocks 17 and can slide up and down under the drive of two cylinders 13.
Still further, the industrial air cooler support frame is a liftable support frame.
Still further, be equipped with the adjustable callus on sole 18 of height-adjustable on the mounting bracket bottom four corners, mounting bracket 2 includes preceding mounting bracket and back mounting bracket, preceding mounting bracket is installed mounting panel 3 and is controlled mounting panel 5 by the electricity, automatically controlled mounting panel 5 is located the mounting panel 3 under, the mounting panel is installed down to the back mounting bracket, direct current motor 10 passes through direct current motor mounting base 7 and installs on mounting panel 3, direct current motor mounting base 7 is located the rear of reduction gear fixing base 8, display mount 6 also installs on mounting panel 3, PLC control box 19 and DC regulated power supply 20 install on automatically controlled mounting panel 5, heating fixed support frame 4 is installed on mounting panel 3 down.
Still further, the dc motor 10 is a high-speed dc motor.
Still further, install the infrared ceramic heating plate in the upside of the fixed support frame of heating, this infrared ceramic heating plate is fixed on the section bar, is equipped with the bolt on the one end of section bar, is equipped with the semicircle inslot on the angle modulation board 16, the bolt penetrates the semicircle inslot and can slide in this semicircle inslot, locks the bolt through lock nut simultaneously.
As shown in fig. 1, the reducer fixing seat 8 is provided with a reducer connecting disc 9 and a hall rotation speed sensor 21, the reducer 14 is installed on the reducer connecting disc 9, the heating fixing support frame 4 is provided with a heating sliding support frame 12, a cylinder 13, an angle adjusting plate 16, a pulley block 17 and an infrared ceramic heating plate 15, the control system controls the direct current motor 10 to drive the test piece reducer 14 to rotate, the hall rotation speed sensor 21 feeds back the rotation speed of the reducer 14, the control system controls the heating device to heat the reducer 14, controls the industrial air cooler 1 to cool the reducer 14, and the thermocouple feeds back the temperature of the reducer 14, so that the test stand realizes the control of the rotation speed and the temperature of the reducer 14.
The upper mounting plate 3, the lower mounting plate and the electric control mounting plate 5 are fixed on the mounting frame 2, wherein the upper mounting plate 3 is fixed with: the display fixing frame 6, the direct current motor mounting base 7 and the speed reducer fixing seat 8, wherein the display fixing frame 6 is provided with a PLC control display panel 11, the direct current motor mounting base 7 is provided with a direct current motor 10, the speed reducer fixing seat 8 is provided with a speed reducer connecting disc 9, the speed reducer 14 is arranged on the speed reducer connecting disc 9, and the speed reducer fixing seat 8 is provided with a Hall rotation speed sensor 21; the heating fixed support frame 4 is provided with a slidable support frame 12 and an air cylinder 13, and the heating slidable support frame 12 is provided with: an infrared ceramic heating plate 15, an angle adjusting plate 16 and a pulley block 17; a PLC control box 19 and a direct current stabilized voltage supply 20 are fixed on the electric control mounting plate 5.
Four pulley blocks 17 and two air cylinders 13 are arranged between the heating fixed support frame 4 and the heating slidable support frame 12, the air cylinder support seat is connected with the air cylinders, the slidable support frame 12 moves up and down through the two air cylinders 13 at the same time to realize sliding, and the sliding of the slidable support frame 12 is guided and kept stable through the four pulley blocks 17. The infrared ceramic heating plate 15 is arranged in the six directions of the heating sliding support frame 12 except the direction connected with the direct current motor 10.
The PLC is adopted to control, and the temperature of the speed reducer is dynamically controlled through the infrared ceramic heating plate 15 and the industrial air cooler 1, so that the simulation of different working conditions of the speed reducer for the pure electric passenger car is realized.
While the foregoing has been disclosed in the specification and drawings, it will be apparent to those skilled in the art that various substitutions and modifications may be made without departing from the spirit of the invention, and it is intended that the scope of the invention be limited not by the specific embodiments disclosed, but by the appended claims.
Claims (4)
1. The utility model provides a pure electric is reduction gear dynamic seal test bench for passenger car which characterized in that: the device comprises a mounting frame, a direct current motor, a Hall sensor for detecting the rotating speed of the direct current motor, a heating device, an industrial air cooler and a control system, wherein the direct current motor is mounted on the front side of the mounting frame, the direct current motor is connected with a speed reducer through a speed reducer connecting disc, the speed reducer is mounted on the mounting frame through a speed reducer fixing seat, the Hall sensor is mounted on the speed reducer fixing seat, the control system comprises a PLC control display panel, a PLC control box and a direct current stabilized power supply, the PLC control display panel and the direct current stabilized power supply are respectively connected with the PLC control box, and the PLC control display panel is mounted on the front side of the mounting frame through a display fixing frame;
The heating device comprises a heating fixed support frame, a heating sliding support frame and five infrared ceramic heating plates, wherein the heating fixed support frame is fixedly arranged on the rear side of the mounting frame, the heating sliding support frame is arranged in the upper part of the heating fixed support frame in a vertically sliding way through an up-down sliding mechanism, the speed reducer is simultaneously positioned in the heating sliding support frame and the heating fixed support frame, the five infrared ceramic heating plates surround the speed reducer, four infrared ceramic heating plates are respectively arranged on the left side, the right side, the lower side and the rear side of the heating sliding support frame, the other infrared ceramic heating plate is arranged on the upper side of the heating fixed support frame through an angle adjusting plate, the heating angle of the other infrared ceramic heating plate can be adjusted through the angle adjusting plate, and a thermocouple for detecting the temperature of the speed reducer is further arranged on the speed reducer;
The industrial air cooler is arranged at the rear of the mounting frame, is opposite to the speed reducer, and is mounted on the industrial air cooler support frame;
The Hall sensor and the thermocouple are respectively connected with the PLC control box, the PLC control box is respectively connected with the direct current motor, the five infrared ceramic heating plates, the industrial air cooler and the up-down sliding mechanism, the rotating speed of the direct current motor is detected through the Hall sensor, meanwhile, the temperature of the speed reducer is detected through the thermocouple, the rotating speed and the temperature are analyzed and calculated through the PLC control box, the rotating speed of the direct current motor is controlled, meanwhile, the temperature of the speed reducer is controlled through the five infrared ceramic heating plates and the industrial air cooler, the rotating speed value of the direct current motor and the temperature value of the speed reducer are displayed through the PLC control display panel, and finally, the rotating speed and the temperature of the speed reducer are controlled;
the industrial air cooler support frame is a liftable support frame, and the direct current motor is a high-speed direct current motor.
2. The dynamic seal test bed for a speed reducer of a pure electric passenger vehicle as set forth in claim 1, wherein: the vertical sliding mechanism comprises four pulley blocks and two air cylinders, four corner edges of the heating sliding support frame are respectively arranged on the heating fixed support frame through the four pulley blocks, the two air cylinders are arranged below the heating sliding support frame in a diagonal manner, and each air cylinder is arranged on the heating fixed support frame through an air cylinder support seat;
the heating sliding support frame is guided by the four pulley blocks and can slide up and down under the driving of the two cylinders.
3.A dynamic seal test stand for a speed reducer of a pure electric passenger car as set forth in claim 1 or 2, wherein: be equipped with the adjustable callus on sole of height-adjustable on the mounting bracket bottom four corners, the mounting bracket includes preceding mounting bracket and back mounting bracket, preceding mounting bracket is installed mounting panel and automatically controlled mounting panel, automatically controlled mounting panel is located the mounting panel under, the mounting panel is installed down to the back mounting bracket, direct current motor passes through direct current motor installation base and installs on the mounting panel, direct current motor installation base is located the rear of reduction gear fixing base, the display mount is also installed on the mounting panel, PLC control box and direct current stabilized power supply install on automatically controlled mounting panel, heating fixed bolster is installed on the mounting panel down.
4. A dynamic seal test stand for a speed reducer of a pure electric passenger car as set forth in claim 1 or 2, wherein: install the infrared ceramic heating board in the upside of the fixed support frame of heating, this infrared ceramic heating board is fixed on the section bar, is equipped with the bolt on the one end of section bar, is equipped with the semicircle inslot on the angle modulation board, the bolt penetrates the semicircle inslot and can slide in this semicircle inslot, locks the bolt through lock nut simultaneously.
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| CN201910706500.XA CN110455459B (en) | 2019-08-01 | 2019-08-01 | Dynamic sealing test bed for speed reducer of pure electric passenger car |
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| CN201910706500.XA CN110455459B (en) | 2019-08-01 | 2019-08-01 | Dynamic sealing test bed for speed reducer of pure electric passenger car |
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| CN110455459A CN110455459A (en) | 2019-11-15 |
| CN110455459B true CN110455459B (en) | 2024-07-16 |
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| CN111811736A (en) * | 2020-06-23 | 2020-10-23 | 郑州日产汽车有限公司 | Automobile main reducer assembly oil seal detection test bed |
| CN114111877A (en) * | 2020-08-31 | 2022-03-01 | 杭州威衡科技有限公司 | Robot servo reducer torque and rotation speed detection device |
| CN116067573B (en) * | 2023-04-03 | 2023-06-06 | 烟台润蚨祥油封有限公司 | Main assembly oil seal detection test bed that subtracts |
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| CN210400722U (en) * | 2019-08-01 | 2020-04-24 | 浙江方圆检测集团股份有限公司 | Dynamic sealing test bench for speed reducer of pure electric passenger vehicle |
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| CN106441883A (en) * | 2016-11-30 | 2017-02-22 | 中南大学 | Comprehensive performance resting experiment table for precision speed reduction device |
| CN106989915B (en) * | 2017-05-31 | 2020-02-11 | 西南石油大学 | Vertical high-speed roller bit bearing spiral sealing test device |
| CN208688806U (en) * | 2018-03-16 | 2019-04-02 | 中机生产力促进中心 | Precision speed reduction device precision and performance comprehensive testing rack |
| CN109612721A (en) * | 2018-12-18 | 2019-04-12 | 济南大学 | An open and replaceable RV reducer comprehensive test bench |
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| CN210400722U (en) * | 2019-08-01 | 2020-04-24 | 浙江方圆检测集团股份有限公司 | Dynamic sealing test bench for speed reducer of pure electric passenger vehicle |
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