CN111413107B - High-low temperature reliability test bed for automobile gear shifting operation - Google Patents
High-low temperature reliability test bed for automobile gear shifting operation Download PDFInfo
- Publication number
- CN111413107B CN111413107B CN202010317806.9A CN202010317806A CN111413107B CN 111413107 B CN111413107 B CN 111413107B CN 202010317806 A CN202010317806 A CN 202010317806A CN 111413107 B CN111413107 B CN 111413107B
- Authority
- CN
- China
- Prior art keywords
- gear
- low temperature
- shifting
- transmission shaft
- temperature box
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 36
- 230000007246 mechanism Effects 0.000 claims abstract description 82
- 230000005540 biological transmission Effects 0.000 claims abstract description 64
- 238000004088 simulation Methods 0.000 claims abstract description 28
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 230000009471 action Effects 0.000 claims abstract description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 239000002131 composite material Substances 0.000 claims description 7
- 239000000741 silica gel Substances 0.000 claims description 7
- 229910002027 silica gel Inorganic materials 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000002474 experimental method Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 239000006247 magnetic powder Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000013016 damping Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a high and low temperature reliability test bed for automobile gear shifting control, which comprises a gear selecting and shifting mechanism and a load simulation mechanism, wherein the gear selecting and shifting mechanism is connected with a transmission shaft, the transmission shaft penetrates into a high and low temperature box from the side surface of the high and low temperature box and is connected with a gear shifter, and the transmission shaft moves or rotates under the action of the gear selecting and shifting mechanism to realize gear selecting or gear shifting of the gear shifter; the load simulation mechanism comprises a cable assembly and a load simulation component connected with one end of the cable assembly, and the other end of the cable assembly penetrates into the high-low temperature box from the side surface of the high-low temperature box and is connected with the output end of the gear shifter; the invention aims to provide a high-low temperature reliability test bed for automobile gear shifting control, which changes notches formed in a high-low temperature box in the prior art by designing a more optimal and reasonable gear selecting and shifting mechanism and a load simulation mechanism so as to reduce the sealing problem of the high-low temperature box during working, ensure the normal operation of the high-low temperature reliability test of the automobile gear shifting control and reduce the experimental error.
Description
Technical Field
The invention belongs to the field of automobile structural part experimental equipment, and particularly relates to an automobile gear shifting control high-low temperature reliability test bed.
Background
The gear shifting operating mechanism of the automobile is also called a gear shifter and a gear shifting assembly, the gear shifter is integrated manually and automatically, and a passenger car, a light truck, a heavy truck and the like are installed. The gear shifter is used for controlling the speed change of a gearbox of an automobile during driving of a driver, and generally has two main functions, namely gear selection and gear shifting. The operation mode of gear selection and gear shifting is that a handle is pulled by hand, and a gear shifting handle 4 connected with the handle can drive a ball head below to rotate, so that a gear selection and gear shifting inhaul cable or a hard shaft below is driven to act. The gear shifting handle 4 is a lever labor-saving structure, and the ball head is a fulcrum of the lever.
The test bed for testing the high and low temperature reliability of the automobile gear shifting operation is designed according to the relevant terms of the technical requirements of the automobile speed changing gear shifting operation device performance requirement and the bench test method, and the endurance life (normal temperature and high and low temperatures of-40 ℃ to 120 ℃) of an automobile gear selecting and shifting mechanism is tested. And judging whether the product is qualified or not according to the detection result, outputting a data report and automatically storing the data report, wherein the data report can be imported into an Excel table for editing, copying and storing.
The automobile gear shifting operating mechanism (gear shifter) plays an important role in driving an automobile, and the problems that the automobile cannot be shifted, the acceleration and deceleration are not efficient, the abrasion in a high-temperature environment and the clamping in a low-temperature environment are caused, the fatigue life does not reach the standard and the like are fatal, so the high-temperature and low-temperature endurance test of the gear shifter is very important.
The difficulty of the high-low temperature reliability test bed for automobile gear shifting operation is that the high-low temperature test is required, so that the gear shifter needs to be installed in a high-low temperature box, and the test can be carried out. And some actuators and sensors and the like need to be mounted outside the high and low temperature cabinet. Therefore, an opening is required in the high-temperature and low-temperature box for connecting the gear shifter and the actuator.
At present, a two-dimensional moving platform is generally adopted by a test bed as the gear selecting and shifting operation of a gear shifter. The motor drives the two-dimensional moving platform to move, the sliding block drives the connecting plate, the connecting plate extends into the high-low temperature box, and a Z shaft which can slide up and down is fixed on the connecting plate and connected with a gear shifter handle. Therefore, in the working process of the two-dimensional moving platform, a horizontal notch needs to be formed in the side surface of the high-low temperature box. The connecting plate moves in the horizontal direction in the notch, the notch has a sealing problem, and the sealing mode of the notch is a silica gel soft material filling mode, a movable cover plate mode and the like. But because the slot size is too large and the tie plate needs to be moved. Therefore, the sealing effect is very poor, the energy consumption of the high-temperature and low-temperature box is large, and even the set temperature can not be reached. The temperature requirement in the test cannot be met.
In the prior art, a two-dimensional moving platform is also arranged at the top of a high-low temperature box, or a robot hand is directly adopted, a large hole is formed in the top of the high-low temperature box, a cover plate with a small hole is opened for capping, a Z shaft penetrates into the small hole of the cover plate, one end of the Z shaft is connected with a gear shifter handle, and the other end of the Z shaft is connected with the two-dimensional moving platform. This also presents sealing problems.
Further, the simulated load of the shifter used in the experiment can be roughly classified into three types: firstly, the weight counter weight, at the output of selector promptly, hang the counter weight through wire rope and pulley mechanism, this kind of mode is with low costs, and the load is invariable, because the gearbox loading capacity that the in-process selector is connected is irregular changeable to the vehicle. And the spring load is realized by taking a compression spring mechanism or an extension spring as the simulated load of the gear shifter, the mode has low cost, the load force is increased gradually, and the magnitude of the load force is determined by the spring coefficient. Any variation in load is also not satisfied. And thirdly, magnetic powder damping loading is adopted, a pull rope or a hard shaft of the gear shifter is connected to the magnetic powder damping device, the magnitude of the loading force is changed through current control of the magnetic powder damper, and compared with the former two modes, the magnetic powder damping loading process control performance is improved to some extent.
Disclosure of Invention
The invention aims to provide a high-low temperature reliability test bed for automobile gear shifting operation, which changes a notch formed in a high-low temperature box in the prior art by designing a more optimal and reasonable gear shifting mechanism and a load simulation mechanism so as to reduce the sealing problem of the high-low temperature box during working, ensure the normal operation of the high-low temperature reliability test for automobile gear shifting operation and reduce the experimental error.
The invention discloses a high-low temperature reliability test bed for automobile gear shifting operation, which comprises a computer control cabinet, a high-low temperature box and an installation rack arranged on the outer side surface of the high-low temperature box, wherein a gear shifter is fixed in the high-low temperature box;
the mounting rack is provided with a gear selecting and shifting mechanism and a load simulation mechanism, the gear selecting and shifting mechanism is connected with a transmission shaft, the transmission shaft penetrates into the high-low temperature box from the side surface of the high-low temperature box and is connected with a gear shifter, and the transmission shaft moves or rotates under the action of the gear selecting and shifting mechanism to realize gear selecting or gear shifting of the gear shifter;
the load simulation mechanism comprises a cable assembly and a load simulation component connected with one end of the cable assembly, and the other end of the cable assembly penetrates into the high-low temperature box from the side surface of the high-low temperature box and is connected with the output end of the gear shifter.
Preferably, the gear selecting and shifting mechanism comprises a gear selecting mechanism and a gear shifting mechanism, the gear selecting mechanism drives the transmission shaft to move to realize gear selection of the gear shifting device, and the gear shifting mechanism drives the transmission shaft to rotate to realize gear shifting of the gear shifting device.
Preferably, the gear selecting mechanism comprises a gear selecting servo motor and a linear sliding table which are fixed on the mounting rack, a sliding block is arranged on the linear sliding table, the sliding block is driven by the gear selecting servo motor and moves along the axis direction of a transmission shaft, and the transmission shaft is fixedly connected with the sliding block.
Preferably, the gear shifting mechanism comprises a gear shifting servo speed reducing motor, and the gear shifting servo speed reducing motor drives the transmission shaft to rotate so as to realize gear shifting of the gear shifter; the end of the transmission shaft, which is close to the gear servo speed reduction motor, is connected with a coupler, the coupler and the gear servo speed reduction motor are both fixed on a sliding block, and the sliding block drives a gear shifting mechanism to move synchronously with the transmission shaft.
Preferably, a supporting seat is arranged on the side face, close to the high-low temperature box, of the mounting rack, a composite bearing is arranged in the supporting seat, the composite bearing comprises two deep groove ball bearings which are arranged in series, a linear bearing is sleeved in the two deep groove ball bearings, and the transmission shaft penetrates through the linear bearing.
Preferably, the transmission shaft is arranged at the inner end of the high-low temperature box and is connected with a linkage mechanism, and the linkage mechanism is connected with the gear shifter and the transmission shaft;
the linkage mechanism comprises a vertical swing arm connected to the end of the transmission shaft, one end of the vertical swing arm is fixedly connected with the transmission shaft, the other end of the vertical swing arm is fixedly connected with a horizontal connecting rod, the end, far away from the vertical swing arm, of the horizontal connecting rod is provided with a compensation linear bearing, a linkage shaft vertically arranged penetrates through the compensation linear bearing, the bottom of the linkage shaft is fixedly connected with a universal joint, the bottom of the universal joint is fixedly connected with a handle clamp, and the handle clamp clamps a gear shifting handle of the gear shifter.
Preferably, a shifter mounting mechanism is arranged in the high-low temperature chamber, the shifter mounting mechanism comprises a mounting bottom plate fixed with a bottom plate of an inner cavity of the high-low temperature chamber, a two-dimensional moving platform is arranged on the mounting bottom plate, the shifter is fixed on the two-dimensional moving platform, and the shifter can move on the mounting bottom plate along with the two-dimensional moving platform;
the two-dimensional moving platform is provided with four L-shaped groove plates, vertical mounting grooves are formed in the L-shaped groove plates, a flat shaft is connected between the two L-shaped groove plates, the flat shaft can move up and down along the mounting grooves, clamping blocks for connecting the flat shaft and the mounting grooves are arranged on the flat shaft, the flat shaft can rotate when the clamping blocks are loosened, and long groove holes for connecting a gear shifter are formed in the flat shaft.
Preferably, an adjusting bottom plate is arranged on the mounting rack, and the load simulation assembly is detachably fixed on the adjusting bottom plate; the load simulation assembly comprises an electric cylinder fixed with the adjusting bottom plate, the output end of the electric cylinder is connected with a U-shaped joint through a ball joint coupling, and the inhaul cable assembly is fixed with the U-shaped joint; a tension and pressure sensor is arranged between the U-shaped joint and the output end of the electric cylinder, and the tension and pressure sensor is in signal connection with a load servo motor;
still be provided with a cable anchor clamps on the adjusting plate, the cable anchor clamps include an L type angle bedplate, are provided with a C type round hole mouth on L type angle bedplate, are provided with three locking bolts on the L type angle bedplate, and locking bolt stretches out and is divided into the equal share in C type round hole mouth by C type round hole mouth medial surface, and three locking bolts lock the cable sheath of cable assembly.
Preferably, the side face of the high-low temperature box close to the mounting rack is provided with two through holes, the two through holes are respectively penetrated by the transmission shaft and the inhaul cable assembly, and the two through holes are sealed by adopting special silica gel sealing parts.
The high-low temperature reliability test bed for the automobile gear shifting operation has the beneficial effects that:
1. the gear selecting and shifting mechanism and the load simulation mechanism which are more excellent and reasonable are arranged, and the problem that sealing is difficult due to the fact that a large notch needs to be formed in a high-temperature box and a low-temperature box during experiments in the prior art is solved. Because of the design of the more excellent and more reasonable gear selecting and shifting mechanism and the load simulation mechanism structure in the technical scheme, only two small round holes are required to be formed in the high-low temperature box, the sealing is convenient, the normal operation of the experiment is ensured, and the test error is reduced.
2. The gear selecting and shifting mechanism in the technology has the advantages of simple structure, convenient operation, reliable connection, and quick, accurate and reliable transmission when gear selecting and shifting are carried out.
3. Load simulation mechanism's output is variable among this technique for this selector can be tested under multiple load, improves the accuracy of realizing the data.
Drawings
FIG. 1 is a perspective view of a test bed for testing high and low temperature reliability of automobile gear shifting operation according to the technical scheme of the invention,
FIG. 2 is a front view of a test bed for testing high and low temperature reliability of automobile gear shifting operation according to the technical scheme of the invention,
figure 3 is a schematic structural view of a gear selecting and shifting mechanism,
figure 4 is a schematic view of the shifter mounting mechanism configuration,
fig. 5 is a schematic structural diagram of a load simulation mechanism.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
As shown in FIG. 1, the test bed for testing the reliability of the shift operation of the automobile comprises a computer control cabinet 1, a high-low temperature box 3 and a mounting rack 2 arranged on the outer side surface of the high-low temperature box 3, wherein a gear shifter 20 is fixed in the high-low temperature box 3. The mounting rack 2 is provided with a gear selecting and shifting mechanism 110 and a load simulating mechanism (not shown). The gear selecting and shifting mechanism 110 is connected with a transmission shaft 11, the transmission shaft 11 penetrates into the high-low temperature box 3 from the side surface of the high-low temperature box 3 and is connected with the gear shifter 20, and the transmission shaft 11 moves or rotates under the action of the gear selecting and shifting mechanism 110 to realize gear selecting or gear shifting of the gear shifter 20.
The gear selecting and shifting mechanism 110 of the above technical solution firstly drives the transmission shaft 11 to move, that is, drives the gear shifting handle 4 on the gear shifter 20 to move, so as to realize gear selection. Then, the gear selecting and shifting mechanism 110 rotates the transmission shaft 11, that is, the gear shifting handle 4 of the gear shifter 20, so as to realize gear shifting. The gear selecting and shifting mechanism 110 is simple in structure, few in operation action and few in linkage part when gear selecting or shifting is carried out, particularly, the joint of the gear selecting and shifting mechanism and the high-low temperature box 3 is few in relative movement part, short in relative movement distance, beneficial to sealing of the high-low temperature box 3, capable of ensuring normal operation of an experiment, reducing experiment errors and improving accuracy of experiment data.
Referring to fig. 1, the load simulation mechanism in the present technology includes a cable assembly 31 and a load simulation component (not shown) connected to one end of the cable assembly 31, and the other end of the cable assembly 31 penetrates into the high-low temperature box 3 from the side of the high-low temperature box 3 and is connected to the output end of the gear shifter 20. The load simulation mechanism adjusts the output load size through the load servo motor, can simulate the performance of the gear shifter 20 under the condition of no load, and improves the accuracy of experimental data.
The side surface of the high-low temperature box 3 close to the mounting rack 2 is provided with two through holes which are respectively penetrated by the transmission shaft 11 and the inhaul cable assembly 31. And special silica gel sealing elements are adopted for realizing sealing of the two through holes. When the inhaul cable works under a load condition, the inhaul cable is always kept in a static state, so that the through hole through which the inhaul cable assembly 31 penetrates is sealed simply, and the inhaul cable can be sealed by a special silica gel plug equipped with an environment incubator generally. The through hole of 3 sides of high-low temperature box that is passed by transmission shaft 11 installs the special silica gel circle that high-low temperature box producer was equipped with on this through hole, the sealed effect of concrete very good, and mounting flange utilizes the flange to prevent that special silica gel circle from droing on this through hole simultaneously, improves sealed effect, ensures that the experiment normally goes on.
As shown in fig. 3, the gear selecting and shifting mechanism 110 includes a gear selecting mechanism and a shifting mechanism. The gear selecting mechanism drives the transmission shaft 11 to move to realize gear selection of the gear shifter 20. The gear shifting mechanism drives the transmission shaft 11 to rotate to shift the gear shifter 20. Therefore, no matter gear selection or gear shifting is carried out, only the transmission shaft 11 is driven to move, on one hand, the operation is simple, on the other hand, the contact position of the transmission shaft 11 and the high-low temperature box 3 has small movement, and the sealing of the high-low temperature box is facilitated.
As shown in fig. 3, the gear selecting mechanism includes a gear selecting servo motor 7 fixed on the mounting rack 2 and a linear sliding table 23, a slider 24 is arranged on the linear sliding table 23, and the slider 24 is driven by the gear selecting servo motor 7 and moves along the axial direction of the transmission shaft. The linear sliding table 23 mainly comprises a linear guide rail, a ball screw, a bearing seat, a coupler and the like, a gear selection servo motor is used for driving the ball screw to rotate, the ball screw drives a sliding block 24 installed on the linear sliding table 23 to move, the transmission shaft 11 is fixedly connected with the sliding block 24, the sliding block 24 moves, namely the transmission shaft 11 moves, and gear selection of the gear shifter 20 is achieved.
As shown in fig. 3, the gearshift mechanism includes a gearshift servo deceleration motor 8, and the gearshift servo deceleration motor 8 rotates a transmission shaft 11 to shift gears of the shifter 20. The end, close to the gear servo speed reducing motor 8, of the transmission shaft 11 is connected with a coupler 10, the coupler 10 and the gear servo speed reducing motor 8 are both fixed on a sliding block 24, and the sliding block 24 drives a gear shifting mechanism to move synchronously with the transmission shaft 11.
According to the above two technical solutions, when the gear selecting and shifting mechanism 110 performs the gear selecting and shifting operation, the operation steps are as follows: the gear selecting servo motor 7 is started firstly, the gear selecting servo motor 7 drives the sliding block 24, the gear shifting servo speed reducing motor 8, the coupler 10 and the transmission shaft 11 to move synchronously, and the transmission shaft 11 drives the gear shifting handle 4 of the gear shifter 20 to move by connecting the transmission shaft 11 and the gear shifter 20 linkage mechanism, so that gear selecting is realized. And performing gear shifting operation after gear selection is finished. The gear shifting operation steps are as follows: firstly, a gear-shifting servo speed-reducing motor 8 is started, the gear-shifting servo speed-reducing motor 8 drives a transmission shaft 11 to rotate through a coupler 10, and the transmission shaft 11 drives a gear-shifting handle 4 of a gear shifter 20 to rotate through a linkage mechanism, so that gear shifting is realized. After the gear shift experiment is completed, first, a gear shift operation is performed to rotationally reset the shift lever 4 of the shifter 20, and then a gear engagement experiment of the next gear is performed after a gear selection-gear shift operation is performed.
The gear selecting and gear shifting operations are simple and quick, are controlled by the servo motor, and are accurate in positioning the gear selecting position, so that the damage to the gear shifter 20 caused by misoperation in an experiment is effectively avoided.
As shown in fig. 3, a support base 13 is provided on the side of the mounting rack 2 close to the high-low temperature chamber 3, and a composite bearing 12 is provided in the support base 13. The composite bearing 12 comprises two deep groove ball bearings which are arranged in series, a linear bearing is sleeved in the two deep groove ball bearings, and the transmission shaft 11 penetrates through the linear bearing. The arrangement of the composite bearing 12 provides a support for the drive shaft 11 while ensuring that the drive shaft 11 does not move or rotate.
As shown in fig. 3, the transmission shaft 11 is disposed at the inner end of the high and low temperature chamber 3 and connected to a linkage 160, and the linkage 160 connects the shifter 20 and the transmission shaft 11. The linkage mechanism 160 includes a vertical swing arm 14 connected to the end of the transmission shaft 11, one end of the vertical swing arm 14 is fixedly connected to the transmission shaft 11, and the other end is fixedly connected to a horizontal connecting rod 15. The end of the horizontal connecting rod 15 far away from the vertical swing arm 14 is provided with a compensation linear bearing 17, and a linkage shaft 16 which is vertically arranged penetrates through the compensation linear bearing 17. A universal joint 18 is fixedly connected to the bottom of the universal shaft 16, a handle clamp 19 is fixedly connected to the bottom of the universal joint 18, and the handle clamp 19 clamps a gear shifting handle 4 of a gear shifter 20. The vertical swing arm 14 is provided with a plurality of mounting holes at upper and lower positions, and the mounting holes are used for changing the mounting position of the horizontal connecting rod 15 and meeting the test of the gear shifter 20 with different lengths of the gear shifting handle 4. The compensation linear bearing 17 is a stainless steel linear bearing, is mounted on the horizontal connecting rod 15 and is matched with the linkage shaft 16, so that the linkage shaft 16 can follow up and down, and is used for compensating the displacement compensation in the vertical direction in the swinging process of the shift handle 4.
As shown in fig. 4, the high-low temperature chamber 3 is provided with a shifter mounting mechanism 200, the shifter mounting mechanism 200 includes a mounting plate 25 fixed to a bottom plate of an inner cavity of the high-low temperature chamber, and the two-dimensional moving platform 21 is provided on the mounting plate 25. The shifter 20 is fixed on the two-dimensional moving platform 21, and the shifter 20 can move horizontally on the mounting base plate 25 along with the two-dimensional moving platform 21. Two handwheels 22 in the vertical direction are arranged on the two-dimensional moving platform 21, and the horizontal position of the gear shifter 20 arranged on the two-dimensional moving platform 21 is adjusted by respectively rotating the two handwheels 22. Here, the two-dimensional moving platform 21 may be any structure that can satisfy the moving position in the present embodiment in the related art.
Four L-shaped groove plates 26 are arranged on the two-dimensional moving platform 21, and vertical installation grooves 9 are formed in the L-shaped groove plates 26. A flat shaft 28 is connected between the two L-shaped groove plates 26, and the flat shaft 28 can move up and down along the mounting groove 9. The flat shaft 28 is provided with a clamping block 27 for connecting the flat shaft 28 and the mounting groove 9, and the clamping block 27 is fixed with the L-shaped groove plate 26 through bolts. The clamping block 27 is a separate hole block, the flat shaft 28 can be clamped by tightening the screw, and the flat shaft 28 can be moved and rotated freely when the screw is loosened. The flat shaft is rotatable when the clamping block 27 is released, and the flat shaft 28 is provided with an elongated slot 6 for connecting the gear selector 20.
As shown in fig. 5, the mounting stand 2 is provided with an adjustment base plate 29, and the load simulation module 310 is detachably fixed to the adjustment base plate 29. The provision of the adjustment base plate 29 facilitates the replacement and installation of different load simulation assemblies 310.
As shown in fig. 5, the load simulation module 310 includes an electric cylinder 36 fixed to the adjustment base plate, an output end of the electric cylinder 36 is connected to a U-joint 32 through a ball joint coupling 33, and the ball joint coupling 33 can effectively avoid problems such as cable installation. The cable assembly 31 is fixed with the U-shaped joint 32. A pulling pressure sensor 34 is arranged between the U-shaped joint 32 and the output end of the electric cylinder 36, and the pulling pressure sensor 34 is in signal connection with a load servo motor 37. The encoders of the pull pressure sensor 34 and the servo motor 37 form a closed loop control circuit. Such as: the load simulating the load end to load the set value is set, the tension and pressure sensor 34 can detect in real time during the working process, the detected value is fed back to the computer in the computer control cabinet 1 in real time, and the computer controls the servo motor 37 to accelerate or decelerate for compensation according to the feedback force of the tension and pressure sensor 34. The dynamic closed-loop control mode is adopted, and the condition that the value of the pull pressure sensor 34 in the load motion process is a set value in real time is met.
The servo loading simulation in the technology can carry out the stepwise incremental loading or the decremental loading on the load, and can also carry out the random loading according to different set loading forces of various gears. When the automobile gear shifter is in an actual automobile state, the gear box is connected through the inhaul cable assembly, the actual load is the gear box, and the actual load force is not constant and is an irregular variable value. Therefore, many automobile factories require test loads to simulate real automobile conditions, a load loading curve is given, and a computer can perform simulation loading according to a load curve graph provided by a client. The loading mode has high accuracy of test data. The servo simulation loading is adopted, and the servo motor has the advantages of strong controllability, high precision, high response speed, long service life and the like. Compared with the loading of other modes, the method has more scientific and reasonable effect.
As shown in fig. 5, the adjusting base plate 29 in the present technology is further provided with a cable clamp 30, the cable clamp 30 includes an L-shaped angle seat plate, the L-shaped angle seat plate is provided with a C-shaped circular hole, the L-shaped angle seat plate is provided with three locking bolts, the locking bolts extend out from an inner side surface of the C-shaped circular hole and equally divide the C-shaped circular hole into three equal parts, and the three locking bolts lock a cable sheath of the cable assembly 31. The structure does not need the stay cable to pass through the hole, is convenient to install, has strong universality and is suitable for installation of various stay cables. And the mounting position of the special clamp can be adjusted according to the lengths of different inhaul cables.
The high-low temperature box has good sealing effect, low energy consumption and high heating and cooling rates, ensures the use requirements of customers and saves electric energy. Meanwhile, the transmission part in the high-low temperature box has a simple structure, so that the phenomenon of blocking due to temperature change is not easy to occur.
In the technical scheme, each servo motor is provided with a return original point and a limit induction switch for accurate return control of the servo motor. The time of the durable cycle of the gear shifter is controlled by controlling the rotating speed of the servo motor. The stroke of each gear of the gear shifter is controlled by setting the rotation angle and the stroke of the servo motor, and the gear shifting action state of a real vehicle can be simulated, and the gear shifting action state is increased progressively from an initial position neutral gear, a first gear to a second gear, a third gear, a fourth gear, a fifth gear and an R gear; or the gear can be decreased progressively from the R gear to the fifth gear, to the fourth gear, to the third gear, to the second gear and to the first gear; or any free gear is durable. The test steps can be set to realize the test of the change action of any gear; is provided with a shifting ball head lifting action.
It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by one of ordinary skill in the art and related arts based on the embodiments of the present invention without any creative effort, shall fall within the protection scope of the present invention. Structures, devices, and methods of operation not specifically described or illustrated herein are generally practiced in the art without specific recitation or limitation.
Claims (5)
1. A high-low temperature reliability test bed for automobile gear shift operation comprises a computer control cabinet, a high-low temperature box and a mounting rack arranged on the outer side surface of the high-low temperature box, wherein a gear shifter is fixed in the high-low temperature box,
the mounting rack is provided with a gear selecting and shifting mechanism and a load simulation mechanism, the gear selecting and shifting mechanism is connected with a transmission shaft, the transmission shaft penetrates into the high-low temperature box from the side surface of the high-low temperature box and is connected with a gear shifter, and the transmission shaft moves or rotates under the action of the gear selecting and shifting mechanism to realize gear selecting or gear shifting of the gear shifter;
the load simulation mechanism comprises a cable assembly and a load simulation component connected with one end of the cable assembly, and the other end of the cable assembly penetrates into the high-low temperature box from the side surface of the high-low temperature box and is connected with the output end of the gear shifter;
two through holes are formed in the side face, close to the mounting rack, of the high-low temperature box, the two through holes are respectively penetrated by the transmission shaft and the inhaul cable assembly, and special silica gel sealing elements are adopted for sealing the two through holes;
the transmission shaft is arranged at the inner end of the high-low temperature box and is connected with a linkage mechanism, and the linkage mechanism is connected with the gear shifter and the transmission shaft; the linkage mechanism comprises a vertical swing arm connected to the end of the transmission shaft, one end of the vertical swing arm is fixedly connected with the transmission shaft, the other end of the vertical swing arm is fixedly connected with a horizontal connecting rod, a compensation linear bearing is arranged at the end, away from the vertical swing arm, of the horizontal connecting rod, a vertically arranged linkage shaft penetrates through the compensation linear bearing, the bottom of the linkage shaft is fixedly connected with a universal joint, the bottom of the universal joint is fixedly connected with a handle clamp, and the handle clamp clamps a gear shifting handle of the gear shifter;
a gear shifter mounting mechanism is arranged in the high-low temperature box and comprises a mounting bottom plate fixed with a bottom plate of an inner cavity of the high-low temperature box, a two-dimensional moving platform is arranged on the mounting bottom plate, the gear shifter is fixed on the two-dimensional moving platform, and the gear shifter can move on the mounting bottom plate along with the two-dimensional moving platform;
the two-dimensional moving platform is provided with four L-shaped groove plates, the L-shaped groove plates are provided with vertical mounting grooves, a flat shaft is connected between the two L-shaped groove plates and can move up and down along the mounting grooves, the flat shaft is provided with clamping blocks for connecting the flat shaft and the mounting grooves, the flat shaft can rotate when the clamping blocks are loosened, and the flat shaft is provided with a long groove hole for connecting a gear shifter;
an adjusting bottom plate is arranged on the mounting rack, and the load simulation assembly is detachably fixed on the adjusting bottom plate;
the load simulation assembly comprises an electric cylinder fixed with the adjusting bottom plate, the output end of the electric cylinder is connected with a U-shaped joint through a ball joint coupling, and the inhaul cable assembly is fixed with the U-shaped joint; a tension and pressure sensor is arranged between the U-shaped joint and the output end of the electric cylinder, and the tension and pressure sensor is in signal connection with a load servo motor;
still be provided with a cable anchor clamps on the adjusting plate, the cable anchor clamps include an L type angle bedplate, are provided with a C type round hole mouth on L type angle bedplate, are provided with three locking bolts on the L type angle bedplate, and locking bolt stretches out and is divided into the equal share in C type round hole mouth by C type round hole mouth medial surface, and three locking bolts lock the cable sheath of cable assembly.
2. The automotive gear-shifting operation high-low temperature reliability test bed according to claim 1, wherein the gear-selecting and gear-shifting mechanism comprises a gear-selecting mechanism and a gear-shifting mechanism, the gear-selecting mechanism drives the transmission shaft to move to realize gear selection of the gear shifter, and the gear-shifting mechanism drives the transmission shaft to rotate to realize gear shifting of the gear shifter.
3. The automotive gear-shifting operation high-low temperature reliability test bed according to claim 2, wherein the gear-selecting mechanism comprises a gear-selecting servo motor fixed on the mounting rack and a linear sliding table, a sliding block is arranged on the linear sliding table, the sliding block is driven by the gear-selecting servo motor and moves along the axial direction of a transmission shaft, and the transmission shaft is fixedly connected with the sliding block.
4. The automotive gear-shifting operation high-low temperature reliability test bed according to claim 3, wherein the gear-shifting mechanism comprises a gear-shifting servo speed-reducing motor, and the gear-shifting servo speed-reducing motor drives a transmission shaft to rotate so as to realize gear shifting of the gear shifter; the end of the transmission shaft, which is close to the gear shifting servo speed reducing motor, is connected with a coupler, the coupler and the gear shifting servo speed reducing motor are both fixed on a sliding block, and the sliding block drives the gear shifting mechanism to move synchronously with the transmission shaft.
5. The test bed for testing the reliability of the automobile gear shifting operation at high and low temperatures according to claim 1, wherein a support seat is arranged on the side surface of the mounting rack close to the high and low temperature box, a composite bearing is arranged in the support seat, the composite bearing comprises two deep groove ball bearings arranged in series, a linear bearing is sleeved in the two deep groove ball bearings, and the transmission shaft penetrates through the linear bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010317806.9A CN111413107B (en) | 2020-04-21 | 2020-04-21 | High-low temperature reliability test bed for automobile gear shifting operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010317806.9A CN111413107B (en) | 2020-04-21 | 2020-04-21 | High-low temperature reliability test bed for automobile gear shifting operation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111413107A CN111413107A (en) | 2020-07-14 |
| CN111413107B true CN111413107B (en) | 2022-03-29 |
Family
ID=71492023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010317806.9A Expired - Fee Related CN111413107B (en) | 2020-04-21 | 2020-04-21 | High-low temperature reliability test bed for automobile gear shifting operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111413107B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112444380A (en) * | 2020-11-09 | 2021-03-05 | 安徽岳塑汽车工业股份有限公司 | High low temperature durability detection device of car shift |
| CN112687152B (en) * | 2020-12-23 | 2022-05-17 | 航天科工系统仿真科技（北京）有限公司 | Gear simulation device of vehicle driving simulator |
| CN113189475A (en) * | 2021-05-12 | 2021-07-30 | 中国第一汽车股份有限公司 | Function test system and method of locking assembly |
| CN113188813A (en) * | 2021-05-12 | 2021-07-30 | 中国第一汽车股份有限公司 | Testing arrangement of locking assembly |
| CN115184003B (en) * | 2022-09-08 | 2023-01-24 | 山东嘉通专用汽车制造有限公司 | Automobile inhaul cable detection machine |
| CN115876366A (en) * | 2022-12-09 | 2023-03-31 | 中国航天空气动力技术研究院 | Brake actuator output pressure testing arrangement |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1763493A (en) * | 2005-11-10 | 2006-04-26 | 上海大学 | Test bench for performance test of automobile gear shift assembly |
| CN201130091Y (en) * | 2007-12-14 | 2008-10-08 | 天津维杰泰克自动化技术有限公司 | Vehicle shift fatigue test machine |
| CN101319964A (en) * | 2007-12-27 | 2008-12-10 | 奇瑞汽车股份有限公司 | Vehicle transmission control mechanism assembly testing bench |
| CN102384845A (en) * | 2011-11-29 | 2012-03-21 | 安徽巨一自动化装备有限公司 | On-line loading test stand shift mechanism of manual transmission |
| CN105445016A (en) * | 2015-12-25 | 2016-03-30 | 四川航天世东汽车部件有限公司 | Vehicle control mechanism durability test device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6754603B2 (en) * | 2002-03-04 | 2004-06-22 | General Motors Corporation | Virtual vehicle transmission test cell |
-
2020
- 2020-04-21 CN CN202010317806.9A patent/CN111413107B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1763493A (en) * | 2005-11-10 | 2006-04-26 | 上海大学 | Test bench for performance test of automobile gear shift assembly |
| CN201130091Y (en) * | 2007-12-14 | 2008-10-08 | 天津维杰泰克自动化技术有限公司 | Vehicle shift fatigue test machine |
| CN101319964A (en) * | 2007-12-27 | 2008-12-10 | 奇瑞汽车股份有限公司 | Vehicle transmission control mechanism assembly testing bench |
| CN102384845A (en) * | 2011-11-29 | 2012-03-21 | 安徽巨一自动化装备有限公司 | On-line loading test stand shift mechanism of manual transmission |
| CN105445016A (en) * | 2015-12-25 | 2016-03-30 | 四川航天世东汽车部件有限公司 | Vehicle control mechanism durability test device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111413107A (en) | 2020-07-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111413107B (en) | High-low temperature reliability test bed for automobile gear shifting operation | |
| US7644630B2 (en) | Gearbox simulation test bench | |
| KR101618094B1 (en) | Steering performance test equipment for a car | |
| CN105181329A (en) | Comprehensive test platform for industrial robot joint reducer | |
| CN100432648C (en) | Test bench for performance test of automobile gear shift assembly | |
| CN111397918B (en) | Automobile gear shifting endurance test simulation load mechanism | |
| CN110864898B (en) | High-power bevel gear comprehensive performance test bed capable of being quickly replaced and assembled | |
| CN105043762A (en) | Fatigue testing machine for gear shift fork | |
| CN109297524A (en) | Mechanical diverter assembling detection device | |
| CN110542554A (en) | durability test system and method for two-gear shifting actuating mechanism | |
| CN102384845B (en) | On-line loading test stand shift mechanism of manual transmission | |
| CN203717873U (en) | Automatic transmission and gear selection and shifting execution mechanism thereof | |
| CN1737523A (en) | Test bench for automatic gear box control valve of automobile | |
| CN105890667B (en) | Automobile guy cable detection machine | |
| CN109283067B (en) | Two-way shear test device of sheet metal | |
| CN111678663A (en) | Robot reducer bending rigidity and loading fatigue performance combined test device | |
| CN209400171U (en) | Three-axis vibration test platform | |
| CN201449332U (en) | Derailleur of automobile synchronizer test-bed | |
| CN101620027B (en) | Gear-shifting device of automotive synchronizer test bench | |
| CN110877754A (en) | Force feedback device of airplane accelerator simulation equipment | |
| CN107263491B (en) | Novel automatic shifter testing robot with passive joints | |
| CN109668751B (en) | Multifunctional combined test stand | |
| CN112362342A (en) | Efficiency testing machine for variable speed control mechanism | |
| CN110658860A (en) | Servo motor pressure and clearance control device under position mode | |
| CN213933113U (en) | Friction wear testing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220329 |