New energy automobile tire starting torque measuring device and working method thereof

Abstract

The invention is suitable for the technical field of tire torque measurement, and provides a new energy automobile tire starting torque measuring device and a working method thereof.The new energy automobile tire starting torque measuring device comprises a measuring assembly and a track assembly, the measuring assembly comprises a support and a torque sensor rotationally connected to one side of the support, and one end of the torque sensor is connected with a tire; the track assembly comprises two baffles and a conveying belt arranged between the two baffles, an adjusting assembly is installed at one end of each baffle, and limiting assemblies are installed at the two ends of each baffle. The device solves the problems that a measurement track is prone to being damaged and needs to be repaired, and measurement data are affected; the lifting air cylinder drives the bearing seat and the supporting roller to adjust the supporting height up and down, the torque is measured when the tire walks or rotates, the device adapts to concave-convex road surfaces, the device can be repeatedly used after supporting the conveying belt and is not prone to damage, the height of the device can be adjusted adaptively in the tire measuring process according to needs, and the data measuring precision is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of tire torque measurement, and more particularly to a new energy vehicle tire starting torque measurement device and a working method thereof. Background Art

[0002] Measuring tire torque for new energy vehicles is an important step in ensuring vehicle performance and safety. Tire torque refers to the torsional moment exerted on a tire during rotation. It reflects the friction between the tire and the ground, as well as the output of the vehicle's power system. Tire torque measurement is of great significance for understanding the vehicle's power performance, transmission efficiency, and braking performance. It is also an important basis for vehicle maintenance and fault diagnosis.

[0003] At present, when measuring, the existing device installs the tire vertically and drives it to rotate, and the tire rolls on the conveyor belt to complete the torque measurement. However, when measuring with this method, the conveyor belt is flat, and the tire can only be measured on the flat surface. The measurement method is single and cannot simulate other road conditions for torque measurement. The staff has improved the existing method and replaced the conveyor belt with a track. A soil structure is set in the track to simulate a bumpy road surface, and then the tire is controlled to walk on the soil to achieve the purpose of torque testing.

[0004] However, when measuring tire torque on a soil track, the tire's rotation speed must be controlled. That is, slow rotation and walking measurements will affect the accuracy of the measurement. If you try to rotate the tire quickly, it is likely to cause the tire to slip on the soil track, causing damage to the soil track and increasing the difficulty and cost of subsequent repair work. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a new energy vehicle tire starting torque measurement device and a working method thereof.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solution: a new energy vehicle tire starting torque measuring device, comprising a measuring component and a track component, the measuring component comprising a bracket and a torque sensor rotatably connected to one side of the bracket, one end of the torque sensor being connected to a tire.

[0007] The track assembly includes two baffles and a conveyor belt arranged between the two baffles. An adjusting assembly is installed at one end of the baffle, and limiting assemblies are installed at both ends of the baffle.

[0008] A sorting assembly and multiple lifting assemblies are installed between the two baffles. Each lifting assembly includes two lifting cylinders installed on the side walls of the baffles and a bearing seat connected to the piston rod of the lifting cylinder. A support roller is rotatably connected between the two bearing seats.

[0009] The arranging component comprises a positioning block arranged between two baffles and a telescopic rod hinged to the positioning block, and a arranging roller is installed on the top of the telescopic rod.

[0010] The present invention is further configured as follows: the measuring component also includes a first electric slide rail and a column slidably connected to the top of the first electric slide rail, a second electric slide rail is vertically installed on the top of the column, a support arm is slidably connected to the side wall of the second electric slide rail, the bracket is rotatably connected to the top of the support arm, a rotating motor is vertically installed on one end of the support arm away from the second electric slide rail, the output end of the rotating motor passes through the support arm and is connected to the bracket, a drive motor is installed on one side of the bracket, and the output end of the drive motor is connected to one end of the torque sensor.

[0011] The present invention is further configured as follows: the track assembly also includes a support leg, the two baffles are installed on the top of the support legs, and an electric roller, a first auxiliary roller and a second auxiliary roller are rotatably connected between the two legs. The first auxiliary roller and the second auxiliary roller are located on the same side of the baffle and are arranged up and down, the first auxiliary roller is located above the second auxiliary roller, and the conveyor belt is transmission-connected to the outer side walls of the electric roller, the first auxiliary roller and the second auxiliary roller. The diameter of the electric roller is larger than the diameter of the first auxiliary roller and the second auxiliary roller. An auxiliary block is installed between the two baffles and in the middle of the two, and the top and bottom of the auxiliary block are both in contact with the inner wall of the conveyor belt.

[0012] By adopting the above technical solution, a tire is installed at one end of the torque sensor, and a drive motor provides power to rotate the tire. The tire is moved above the auxiliary block via the first electric slide, and the second electric slide drives the tire downward to rotate in contact with the conveyor belt. During the rotation process, the second electric slide continues to drive the tire downward, and the tire is subjected to the reverse squeezing force of the auxiliary block and the conveyor belt. Afterwards, the rotating motor drives the tire to turn and maintain its rotation. During this process, the torque sensor monitors the torque value of the tire in different states in real time to ensure measurement accuracy. In addition, the lifting cylinder drives the corresponding bearing seat and support roller to move up and down, thereby adjusting the support height of the support roller for the conveyor belt. The tire walks in the position of multiple sets of lifting components or rotates in place, thereby measuring the torque of the tire on uneven roads. The supported conveyor belt can be reused and is not easily damaged. Its height can be adjusted according to needs during the tire measurement process.

[0013] The present invention is further configured as follows: the sorting assembly also includes a fixed platform connected between the two baffles, the two positioning blocks are installed on the top of the fixed platform, and the tops of the two positioning blocks are installed with a bidirectional cylinder, and the two piston rod ends of the bidirectional cylinder are respectively hinged to the two telescopic rods hinged on the corresponding positioning blocks.

[0014] By adopting the above technical solution, when the torque is measured at the position of the lifting assembly, the tire twists, the conveyor belt deflects and folds, and the two bidirectional cylinders begin to extend and retract at the same time. The two bidirectional cylinders respectively drive the corresponding two telescopic rods and the sorting rollers to swing, causing the four sorting rollers to apply a pushing force in four directions to the inner wall of the conveyor belt at the same time, so that the conveyor belt is leveled, reducing the deviation and wear of the conveyor belt during the simulation process.

[0015] The present invention is further configured as follows: the adjustment component includes a first through slot, there are four first through slots, and two first through slots form a group, the two first through slots in the same group are both opened on the side wall of a baffle and arranged up and down, the two ends of the first auxiliary roller are respectively inserted into two of the first through slots located above the side wall of the baffle, and the two ends of the second auxiliary roller are respectively inserted into two of the first through slots located below the side wall of the baffle.

[0016] The present invention is further configured as follows: a U-shaped frame is installed on the side opposite to each other of the two baffles, the U-shaped frame is located on the side wall of the baffle and between the two corresponding first through-slots, an adjusting motor is installed on the side wall of each of the U-shaped frames, the output end of the adjusting motor passes through the corresponding U-shaped frame and is connected to a gear, a first rack and a second rack are respectively provided on the same end of the first auxiliary roller and the second auxiliary roller, the first rack is rotatably connected to the second auxiliary roller, and the first rack is slidably connected to the inside of the first through-slot by a slider, the second rack is rotatably connected to the first auxiliary roller, and the second rack is slidably connected to the inside of the second rack by a slider.

[0017] The present invention is further configured as follows: a second through groove is opened on the side wall of each second rack, the end of the first auxiliary roller is slidably connected to the inside of the second through groove, and an adjusting cylinder is horizontally installed on each second rack, the piston rod of the adjusting cylinder extends to the inside of the second through groove and is rotatably connected to the corresponding end of the first auxiliary roller.

[0018] The present invention is further configured as follows: both groups of the limiting components include support seats, the two support seats are respectively installed at both ends of the baffle, the top of each support seat is rotatably connected to a rotating shaft, and the outer side wall of the rotating shaft is installed with a limiting frame.

[0019] The present invention is further configured as follows: a rotating cylinder is installed on the top of each support seat, the output end of the rotating cylinder is connected to the end of the corresponding rotating shaft, and a rubber pad with evenly arranged bumps is connected to the side wall of each limiting frame.

[0020] With the above technical solution, when the first auxiliary roller moves away from the motorized roller and the second auxiliary roller approaches the motorized roller, the top length of the conveyor belt is greater than the bottom length. The rotating cylinder drives the limiting frame to swing, causing the conveyor belt to be fixed to the motorized roller and the first auxiliary roller by the two limiting frames, respectively. The adjusting cylinder pushes the first auxiliary roller to slide, narrowing the gap between it and the motorized roller, loosening the top of the conveyor belt. The stationary tire then contacts the conveyor belt surface. When the tire is restarted, the loose conveyor belt is squeezed and pulled by the rotating force of the tire, causing it to fold and wrap around the bottom of the tire, thereby exerting resistance in the opposite direction, simulating a tire stuck in a stationary start. This simulation improves the functionality of the measurement device. When the limiting frame presses the conveyor belt, the rubber pad with a bump increases friction with the conveyor belt to prevent slipping. When the adjusting cylinder adjusts the position of the first auxiliary roller a second time, the corresponding limiting assembly continues to operate, and the corresponding limiting frame and rubber pad continue to swing. The rubber pad maintains contact with the conveyor belt, forcing excess conveyor belt toward the motorized roller, preventing excess conveyor belt from bending between the first auxiliary roller and the corresponding set of limiting assemblies, thereby ensuring measurement accuracy.

[0021] A method for measuring the starting torque of a new energy vehicle tire, using the above-described new energy vehicle tire starting torque measuring device, comprises the following steps: S1. Install the tire to be measured on one end of the torque sensor. Then, use the measuring assembly to drive the tire to rotate, lower the tire onto the surface of the conveyor belt, and use the measuring assembly to drive the tire to apply pressure and steering force to the conveyor belt. At this time, the torque driven by the tire is measured by the torque sensor.

[0022] S2. Then, the tire is moved to the top of the lifting assembly. The lifting cylinders in the multiple lifting assemblies push the corresponding bearing seats and support rollers up and down respectively. The multiple support rollers push the conveyor belt up and down respectively, thereby making the conveyor belt above the support rollers in an uneven state. The measuring assembly drives the tire to rotate and move rapidly on the uneven position of the conveyor belt. In this state, the change in the torque of the tire on the uneven road surface can be simulated.

[0023] S3. Then, the tire is moved to the top of the lifting assembly. The lifting cylinders in the multiple lifting assemblies push the corresponding bearing seats and support rollers up and down respectively. The multiple support rollers push the conveyor belt up and down respectively, so that the conveyor belt above the support rollers is in an uneven state. The first electric slide rail drives the column to move horizontally, thereby controlling the tire to move on the uneven position of the conveyor belt. At the same time, the motor drives the tire to rotate rapidly. In this state, the change of the tire's torque on the uneven road surface can be simulated.

[0024] S4. When the torque is measured at the position of the lifting assembly, the tire twists and the conveyor belt deflects and folds. The conveyor belt in the deflected and folded state is leveled using the finishing assembly.

[0025] S5. After the measurement is completed, the conveyor belt stops transmitting, and the adjusting component adjusts the tightness of the conveyor belt, that is, the upper length of the conveyor belt increases and the lower length shortens. The conveyor belt is compressed by two sets of limiting components, and then the tightness of the upper part of the conveyor belt is controlled. In this state, the tire stops rotating and fits on the surface of the conveyor belt. The tire is then controlled to start on the surface of the conveyor belt. The friction between the tire and the conveyor belt increases, and the loose conveyor belt is squeezed and pulled by the rotational force of the tire. The conveyor belt is pulled and folded, and wraps the bottom part of the tire. The conveyor belt applies resistance to the tire in the reverse direction, simulating the state of the tire starting from a deep state. After that, the tire stops rotating, and the torque sensor measures the torque of the tire in this state.

[0026] In summary, this application includes at least one of the following beneficial technical effects: (1) By setting up a lifting assembly, the lifting cylinder drives the corresponding bearing seat and support roller to move up and down, thereby adjusting the support height of the support roller on the conveyor belt. The tire walks or rotates in place at the position of multiple sets of lifting assemblies, thereby measuring the torque of the tire on the uneven road surface. The supported conveyor belt can be reused and is not easily damaged. Its height can be adjusted according to needs during the tire measurement process.

[0027] (2) By setting the finishing roller, when the torque is measured at the position of the lifting assembly, the tire twists, the conveyor belt deflects and folds, and the two bidirectional cylinders begin to extend and retract at the same time. The two bidirectional cylinders drive the corresponding two telescopic rods and the finishing rollers to swing, causing the four finishing rollers to apply a driving force in four directions to the inner wall of the conveyor belt at the same time, so that the conveyor belt is flattened, reducing the deviation and wear of the conveyor belt during the simulation process.

[0028] (3) By setting the first through slot and the limiting component, when the first auxiliary roller is away from the electric roller and the second auxiliary roller is close to the electric roller, the top length of the conveyor belt is greater than the bottom length, and the rotating cylinder drives the limiting frame to swing, so that the conveyor belt is fixed on the electric roller and the first auxiliary roller by the two limiting frames respectively. The adjusting cylinder pushes the first auxiliary roller to slide, narrowing the distance with the electric roller, so that the top of the conveyor belt is loosened, and the tire in a stationary state adheres to the surface of the conveyor belt. Then the tire is started to rotate, and the loose conveyor belt is squeezed and pulled by the rotating force of the tire, folded and wrapped around the bottom of the tire, thereby applying resistance to the tire in the reverse direction, simulating the tire being stuck in the starting state. This simulation method improves the functionality of the measuring device.

[0029] (4) When the limiting frame is pressed against the conveying belt, the rubber pad provided with the protrusion increases the friction between the conveying belt to prevent slipping, and when the second adjusting cylinder adjusts the position of the first auxiliary roller, the corresponding limiting assembly continues to operate, the corresponding limiting frame and rubber pad continue to swing, the rubber pad keeps in contact with the conveying belt, so that the excess conveying belt is close to the motor roller, preventing the excess length of the conveying belt from being bent between the first auxiliary roller and the corresponding limiting assembly, and ensuring the accurate test. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a whole structure schematic diagram of the new energy automobile tire starting torque measuring device.

[0031] Figure 2 It is a measuring assembly structure schematic diagram in the application.

[0032] Figure 3 It is a bottom structure schematic diagram of Figure 2 .

[0033] Figure 4 It is a side view partial structure schematic diagram of Figure 2 .

[0034] Figure 5 It is a track assembly, adjusting assembly and limiting assembly cooperation structure schematic diagram in the application.

[0035] Figure 6 It is a partial structure schematic diagram of Figure 5 .

[0036] Figure 7 It is a arrangement assembly structure schematic diagram in the application.

[0037] Figure 8 It is a lifting assembly structure schematic diagram in the application.

[0038] Figure 9 It is an adjusting assembly and limiting assembly cooperation structure schematic diagram in the application.

[0039] Figure 10 It is a side view structure schematic diagram of Figure 9 .

[0040] Figure 11 It is a limiting assembly structure schematic diagram in the application.

[0041] BRIEF DESCRIPTION OF DRAWINGS: 1, measuring assembly; 11, first electric sliding rail; 12, stand column; 13, second electric sliding rail; 14, support arm; 15, support; 16, driving motor; 17, rotary motor; 18, torque sensor; 2, track assembly; 21, support leg; 22, baffle; 23, motor roller; 24, auxiliary block; 25, conveying belt; 26, first auxiliary roller; 27, second auxiliary roller; 3. Lifting assembly; 31. Lifting cylinder; 32. Bearing seat; 33. Support roller; 4. Finishing assembly; 41. Fixing table; 42. Positioning block; 43. Telescopic rod; 44. Finishing roller; 45. Bidirectional cylinder; 5. Adjustment assembly; 51. First through slot; 52. U-shaped frame; 53. Adjustment motor; 54. Gear; 55. First rack; 56. Second rack; 57. Second through slot; 58. Adjustment cylinder; 6. Limiting assembly; 61. Support seat; 62. Rotating cylinder; 63. Rotating shaft; 64. Limiting frame; 65. Rubber pad; 7. Tires. DETAILED DESCRIPTION

[0042] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0043] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0044] See also Figures 1-11 , the present invention provides the following technical solutions: Example 1, see Figures 1-4A new energy vehicle tire starting torque measuring device includes a measuring component 1, which includes a first electric slide rail 11 and a column 12 slidably connected to the top of the first electric slide rail 11, a second electric slide rail 13 is vertically installed on the top of the column 12, and a support arm 14 is slidably connected to the side wall of the second electric slide rail 13. The first electric slide rail 11 and the second electric slide rail 13 are both stepper motor linear slide rail slide modules, which are not specifically limited here. The column 12 is installed on the slide of the first electric slide rail 11, and the second electric slide rail 13 is installed on the top of the column 12. The first electric slide rail 11 is used to drive the column 12 and the second electric slide rail 13 to move synchronously, and the second electric slide rail 13 is used to drive the support arm 14 to move up and down. The upper part of the support arm 14 is rotatably connected to a bracket 15, and the end of the support arm 14 away from the second electric slide rail 13 is vertically upwardly installed with a rotating motor 17. The output end of the rotating motor 17 passes through the support arm 14 and is connected to the bracket 15. When the support arm 14 moves, it drives the bracket 15 and the rotating motor 17 to move up and down. The rotating motor 17 is used to drive the bracket 15 to rotate and adjust the angle. A torque sensor 18 is installed on one side of the bracket 15, and one end of the torque sensor 18 is connected to the tire 7. A drive motor 16 is installed on one side of the bracket 15, and the output end of the drive motor 16 is connected to one end of the torque sensor 18. The drive motor 16 is used to apply driving force to the torque sensor 18, and the torque sensor 18 then applies driving force to the tire 7, causing the tire 7 to start rotating. The torque sensor 18 is used to measure the torque of the tire 7 when it starts and rotates. At the same time, the first electric slide 11, the second electric slide 13 and the rotating motor 17 cooperate to adjust the angle and position of the tire 7, which facilitates the subsequent torque measurement of the tire 7.

[0045] See Figure 1 、 Figure 5 and Figure 6 A track assembly 2 is provided on one side of the measuring assembly 1. The track assembly 2 is used to carry the tire 7. That is, the tire 7 is tested and rubbed on the track assembly 2, thereby simulating the torque value of the tire 7 on the actual road surface. The specific structure of the track assembly 2 is as follows: See Figure 5 and Figure 6The track assembly 2 comprises two baffle plates 22 and a conveying belt 25 arranged between the two baffle plates 22, and further comprises two legs 21, the two baffle plates 22 are both mounted on the top of the two legs 21, the two legs 21 are rotationally connected with an electric roller 23, a first auxiliary roller 26 and a second auxiliary roller 27, the first auxiliary roller 26 and the second auxiliary roller 27 are arranged on the same side of the baffle plate 22 and arranged in an up-down manner, the first auxiliary roller 26 is located above the second auxiliary roller 27, the conveying belt 25 is drivingly connected to the outer side wall of the electric roller 23, the first auxiliary roller 26 and the second auxiliary roller 27, the electric roller 23 is used to apply a driving force to the conveying belt 25, so that the conveying belt 25 is driven on the outer side wall of the electric roller 23, the first auxiliary roller 26 and the second auxiliary roller 27, the diameter of the electric roller 23 is greater than that of the first auxiliary roller 26 and the second auxiliary roller 27, an auxiliary block 24 is arranged between the two baffle plates 22 and at the middle position of the two baffle plates 22, the top surface and the bottom of the auxiliary block 24 are both in close contact with the inner wall of the conveying belt 25, during the transmission of the conveying belt 25, the auxiliary block 24 assists in supporting the conveying belt 25, and the tire 7 can be in contact with the conveying belt 25 above the auxiliary block 24, preventing the conveying belt 25 from collapsing.

[0046] Specifically, the staff will install the tire 7 to be measured on one end of the torque sensor 18, then apply a driving force to the torque sensor 18 and the tire 7 through the driving motor 16, so that the tire 7 can rotate, then move the tire 7 above the auxiliary block 24 by driving the column 12 to move horizontally through the first electric slide rail 11, and then move the tire 7, the torque sensor 18 and the support arm 14, the bracket 15 and the second electric slide rail 13 downwardly, so that the tire 7 rotates in close contact with the surface of the conveying belt 25, during the rotation of the tire 7, the second electric slide rail 13 continues to drive the support arm 14 to move downwardly, the tire 7 presses the conveying belt 25 downwardly, so that the tire 7 is pressed and rubbed by the reverse pressing force of the auxiliary block 24 and the conveying belt 25, then the bracket 15 is turned by the rotating motor 17, the driving motor 16, the torque sensor 18 and the tire 7 are turned by the bracket 15, the tire 7 remains in a rotating state, and the torque sensor 18 monitors the torque value in real time during the state change of the tire 7.

[0047] Example two, since the conveying belt 25 is a plane, the tire 7 can only be measured on the plane, the measurement method is single, and other road conditions cannot be simulated for torque measurement. In order to meet the needs, the conveying belt is replaced by a track, and a soil structure is arranged in the track to simulate the concave-convex road surface. However, when measuring the torque of the tire 7 on the soil track, the rotation speed of the tire 7 must be controlled, that is, slow rotation walking measurement will affect the accuracy of the measurement. If the tire 7 is tried to be rotated quickly, it is likely to cause the tire 7 to slip on the soil track, causing damage to the soil track, increasing the difficulty and cost of subsequent repair work. If the purpose of simulating the concave-convex road surface is achieved by directly setting a rubber protrusion, it is not only inconvenient to adjust the height at will, but also still damages the structure and shape of the protrusion. Therefore, the protrusion is arranged as follows: Referring to Figure 8 A plurality of lifting assemblies 3 are installed between the two baffles 22, which support the conveying belt 25 in cooperation and have different support heights, thereby achieving the purpose of measuring the torque of the tire 7 simulating the concave-convex road surface. The specific structure of the lifting assembly 3 is as follows: Referring to Figure 6 And Figure 8 Each lifting assembly 3 includes two lifting cylinders 31 installed on the side wall of the baffle 22 and a bearing seat 32 connected to the piston rod of the lifting cylinder 31. The two bearing seats 32 are rotatably connected with a supporting roller 33. The lifting cylinder 31 is used to drive the corresponding bearing seat 32 and supporting roller 33 to move up and down, thereby adjusting the support height of the supporting roller 33 to the conveying belt 25. The tire 7 walks at the position of the plurality of lifting assemblies 3 or rotates in place, thereby being able to measure the torque of the tire 7 on the concave-convex road surface. The raised conveying belt 25 can be repeatedly used and is not easily damaged, and its height can be adjusted according to needs during the measurement of the tire 7.

[0048] In addition, although the structure of pushing the conveying belt 25 up and down to form a protrusion is arranged to reduce the degree of damage to the protrusion, the formed protrusion will lift the conveying belt 25. When the tire 7 is controlled to twist to simulate steering torque measurement, the conveying belt 25 will be laterally deflected and worn.

[0049] Referring to Figure 6 And Figure 7The two ends of the two-way cylinder 45 are respectively hinged to the two telescopic rods 43 hinged on the positioning blocks 42, and the two-way cylinder 45 is used to push the corresponding two telescopic rods 43 to swing, thereby causing the corresponding sorting roller 44 to move on the inner top wall of the conveyor belt 25, thereby flattening the concave position of the conveyor belt 25. In addition, the telescopic rod 43 can use the telescopic function to adjust the position of the corresponding sorting roller 44, thereby changing the sorting range of the sorting roller 44.

[0050] Specifically, when the torque is measured at the position of the lifting assembly 3, the tire 7 twists, the conveyor belt 25 deviates and folds, and the two bidirectional cylinders 45 begin to extend and retract at the same time. The two bidirectional cylinders 45 respectively drive the corresponding two telescopic rods 43 and the sorting rollers 44 to swing, causing the four sorting rollers 44 to apply a driving force in four directions to the inner wall of the conveyor belt 25 at the same time, so that the conveyor belt 25 is leveled, reducing the offset wear of the conveyor belt 25 during the simulation process.

[0051] In the third embodiment, when the tire 7 is measured in situ, the conveyor belt 25 is in a taut state. There is only a single friction between the tire 7 and the conveyor belt 25. The road surface does not exert a large reaction force on the tire 7. It can only simulate a dry road surface, but cannot simulate the torque when the tire 7 is deeply sunken and cannot move. The functionality is single.

[0052] participate Figure 1 and Figures 9-11 To this end, an adjustment component 5 is installed at one end of the baffle 22, and a limiting component 6 is installed at both ends of the baffle 22. The adjustment component 5 is used to adjust the tightness of the conveyor belt 25. During the adjustment process, the limiting component 6 is used to limit the conveyor belt 25 to prevent the conveyor belt 25 from being too loose and affecting the measurement.

[0053] See Figures 9-11The adjustment component 5 includes four first through slots 51, and two first through slots 51 form a group. The two first through slots 51 in the same group are both opened on the side wall of a baffle 22 and arranged up and down. The two ends of the first auxiliary roller 26 are respectively inserted into two of the first through slots 51 located above the side wall of the baffle 22, and the two ends of the second auxiliary roller 27 are respectively inserted into two of the first through slots 51 located below the side wall of the baffle 22. The first auxiliary roller 26 and the second auxiliary roller 27 can slide inside the corresponding two first through slots 51, thereby adjusting the positions of the first auxiliary roller 26 and the second auxiliary roller 27.

[0054] See Figures 9-11 , a U-shaped frame 52 is installed on the side opposite to each other of the two baffles 22, and the U-shaped frame 52 is located on the side wall of the baffle 22 and between the two corresponding first through grooves 51. An adjusting motor 53 is installed on the side wall of each U-shaped frame 52, and the output end of the adjusting motor 53 passes through the corresponding U-shaped frame 52 and is connected to a gear 54. The adjusting motor 53 is used to drive the gear 54 to rotate. A first rack 55 and a second rack 56 are respectively provided on the same end of the first auxiliary roller 26 and the second auxiliary roller 27. The first rack 55 is rotatably connected to the second auxiliary roller 27, and the first rack 55 is slidably connected to the inside of the first through groove 51 by a slider, and the second rack 56 is rotatably connected to the first auxiliary roller 26, and the second rack 56 is slidably connected to the first auxiliary roller 26 by a slider. Inside the two racks 56, when the gear 54 rotates, the first rack 55 and the second rack 56 can be driven to move simultaneously, and the two move in opposite directions. When the first rack 55 and the second rack 56 move, they respectively slide inside the corresponding first through-slot 51 through the corresponding sliders to prevent the first rack 55 and the second rack 56 from swinging and offsetting. When the first rack 55 and the second rack 56 move, they can drive the corresponding first auxiliary roller 26 and the second auxiliary roller 27 to move. When the first auxiliary roller 26 moves in the direction away from the electric roller 23, the second auxiliary roller 27 moves in the direction close to the electric roller 23. Conversely, when the first auxiliary roller 26 moves in the direction close to the electric roller 23, the second auxiliary roller 27 moves in the direction away from the electric roller 23.

[0055] The two groups of limiting components 6 each include a support seat 61, and the two support seats 61 are respectively installed at the two ends of the baffle 22. The top of each support seat 61 is rotatably connected to a rotating shaft 63, and a limiting frame 64 is installed on the outer wall of the rotating shaft 63. A rotating cylinder 62 is installed on the top of each support seat 61, and the output end of the rotating cylinder 62 is connected to the end of the corresponding rotating shaft 63. A rubber pad 65 with evenly arranged bumps is connected to the side wall of each limiting frame 64. When the first auxiliary roller 26 moves in the direction away from the electric roller 23, the second auxiliary roller 27 moves After moving in the direction close to the electric roller 23, the conveyor belt 25 is in a trapezoidal state, and the top length is greater than the bottom length. Then, the rotating cylinder 62 in the two sets of limiting components 6 is used to drive the rotation. The rotating cylinder 62 drives the corresponding rotating shaft 63 and the limiting frame 64 to swing, causing the limiting frame 64 to move in the direction close to the conveyor belt 25. One of the limiting frames 64 presses the conveyor belt 25 on the electric roller 23 and fixes it, and the other limiting frame 64 presses the conveyor belt 25 on the surface of the first auxiliary roller 26. The conveyor belt 25 remains stationary and is restricted.

[0056] When the limiting frame 64 is pressed against the surface of the conveyor belt 25 , the rubber pad 65 with the protrusions is used to increase the friction between the limiting frame 64 and the conveyor belt 25 to avoid slipping.

[0057] A second through slot 57 is provided on the side wall of each second rack 56. The end of the first auxiliary roller 26 is slidably connected to the inside of the second through slot 57. An adjusting cylinder 58 is horizontally installed on each second rack 56. The piston rod of the adjusting cylinder 58 extends to the inside of the second through slot 57 and is rotatably connected to the corresponding end of the first auxiliary roller 26. After the conveyor belt 25 is restricted, the piston rod of the adjusting cylinder 58 extends and pushes the first auxiliary roller 26 to slide inside the second through slot 57, thereby reducing the distance between the electric roller 23 and the first auxiliary roller 26. The top of the conveyor belt 25 is in a relaxed state. In this state, In this state, the tire 7 stops rotating and adheres to the surface of the conveyor belt 25. Then, the tire 7 is controlled to start on the surface of the conveyor belt 25. The friction between the tire 7 and the conveyor belt 25 increases, and the conveyor belt 25 in a loose state is squeezed and pulled by the rotational force of the tire 7. The conveyor belt 25 is pulled and folded and wraps the bottom part of the tire 7. The conveyor belt 25 applies resistance to the tire 7 in the reverse direction, simulating the state of the tire 7 starting from a deep state. After that, the tire 7 stops rotating, and the torque sensor 18 measures the torque of the tire 7 in this state, greatly improving the functionality of the measuring device.

[0058] When the adjusting cylinder 58 adjusts the position of the first auxiliary roller 26 for the second time, a group of limiting components 6 corresponding to the first auxiliary roller 26 continues to operate, that is, the rotating cylinder 62 of this group of limiting components 6 is started again and drives the rotating shaft 63 to rotate, and the rotating shaft 63 drives the corresponding limiting frame 64 and the rubber pad 65 to swing, keeping the rubber pad 65 in contact with the conveyor belt 25, so that the excess length of the conveyor belt 25 can be close to the position of the electric roller 23, preventing the excess length of the conveyor belt 25 from bending between the first auxiliary roller 26 and the corresponding group of limiting components 6.

[0059] Example 4, a method for measuring the starting torque of a new energy vehicle tire, using the above-mentioned new energy vehicle tire starting torque measuring device, includes the following steps: S1. Install the tire 7 to be measured on one end of the torque sensor 18. Then, drive the tire 7 to rotate through the measuring component 1, drop the tire 7 to the surface of the conveyor belt 25 and rotate it. Use the measuring component 1 to drive the tire 7 to apply pressure and steering force to the conveyor belt 25. At this time, the torque driven by the tire 7 is measured by the torque sensor 18.

[0060] The more specific steps of S1 are: S11. Install the tire 7 to be measured on one end of the torque sensor 18, and then apply driving force to the torque sensor 18 and the tire 7 through the drive motor 16, so that the tire 7 can rotate. Then, the first electric slide 11 drives the column 12 to move horizontally, and moves the tire 7 to the top of the auxiliary block 24. The second electric slide 13 drives the support arm 14, the bracket 15, the torque sensor 18 and the tire 7 to move downward, so that the tire 7 rotates in contact with the surface of the conveyor belt 25. During the rotation of the tire 7, the second electric slide 13 continues to drive the support arm 14 to move downward, and the tire 7 squeezes the conveyor belt 25 downward, so that the tire 7 is squeezed and rubbed by the reverse squeezing force of the auxiliary block 24 and the conveyor belt 25.

[0061] S12. The rotating motor 17 drives the bracket 15 to turn, and the bracket 15 drives the driving motor 16, the torque sensor 18 and the tire 7 to turn. The tire 7 keeps rotating, and the torque sensor 18 monitors the torque value in real time during the state change of the tire 7.

[0062] S2. Then, the tire 7 is moved to the top of the lifting assembly 3. The lifting cylinders 31 in the multiple lifting assemblies 3 push the corresponding bearing seats 32 and support rollers 33 to move up and down respectively. The multiple support rollers 33 push the conveyor belt 25 to move up and down respectively, thereby making the conveyor belt 25 above the support rollers 33 in an uneven state. The measuring assembly 1 drives the tire 7 to rotate and move rapidly at the uneven position of the conveyor belt 25. In this state, the change of torque of the tire 7 on the uneven road surface can be simulated.

[0063] S3. Then, the tire 7 is moved to the top of the lifting assembly 3. The lifting cylinders 31 in the multiple sets of lifting assemblies 3 push the corresponding bearing seats 32 and support rollers 33 to move up and down respectively. The multiple support rollers 33 push the conveyor belt 25 to move up and down respectively, so that the conveyor belt 25 above the support rollers 33 is in an uneven state. The first electric slide rail 11 drives the column 12 to move horizontally, thereby controlling the tire 7 to move on the uneven position of the conveyor belt 25. At the same time, the driving motor 16 drives the tire 7 to rotate rapidly. In this state, the change of torque of the tire 7 on the uneven road surface can be simulated.

[0064] S4. When the tire 7 measures the torque at the position of the lifting assembly 3, the tire 7 twists, and the conveyor belt 25 deflects and folds. The conveyor belt 25 in the deflected and folded state is leveled by the arranging assembly 4.

[0065] The more specific steps of S4 are: S41, when the tire 7 is measuring the torque at the position of the lifting component 3, the tire 7 twists, the conveyor belt 25 deviates and folds, and at the same time, the two bidirectional cylinders 45 begin to extend and retract at the same time. The two bidirectional cylinders 45 respectively drive the corresponding two telescopic rods 43 and the sorting rollers 44 to swing, causing the four sorting rollers 44 to apply pushing forces in four directions to the inner wall of the conveyor belt 25 at the same time, so that the conveyor belt 25 is leveled.

[0066] S5. After the measurement is completed, the conveyor belt 25 stops transmitting, and the adjusting component 5 adjusts the tightness of the conveyor belt 25, that is, the upper length of the conveyor belt 25 increases and the lower length shortens. The two sets of limiting components 6 are used to press the conveyor belt 25, and then the tightness of the upper part of the conveyor belt 25 is controlled. In this state, the tire 7 stops rotating and fits on the surface of the conveyor belt 25. Then the tire 7 is controlled to start on the surface of the conveyor belt 25. The friction between the tire 7 and the conveyor belt 25 increases, and the conveyor belt 25 in a loose state is squeezed and pulled by the rotational force of the tire 7 when it rotates. The conveyor belt 25 is pulled and folded and wraps the bottom part of the tire 7. The conveyor belt 25 applies resistance to the tire 7 in the reverse direction, simulating the state of the tire 7 starting from a deep state. After that, the tire 7 stops rotating, and the torque sensor 18 measures the torque of the tire 7 in this state.

[0067] S51. After the measurement is completed, the conveyor belt 25 stops transmitting, and the two regulating motors 53 respectively drive the corresponding gears 54 to rotate. The gears 54 pull the meshed first rack 55 and the second rack 56 to slide in opposite directions, that is, the first rack 55 drives the second auxiliary roller 27 to move toward the middle of the baffle 22, and the second rack 56 drives the first auxiliary roller 26 to move toward the end of the baffle 22. The conveyor belt 25 is in a trapezoidal state as a whole.

[0068] S52. Then, the rotating cylinders 62 in the two groups of limiting components 6 are driven to rotate, and the rotating cylinders 62 drive the corresponding rotating shafts 63 and limiting frames 64 to swing, causing the limiting frames 64 to move toward the direction close to the conveyor belt 25. One of the limiting frames 64 presses the conveyor belt 25 on the electric roller 23 and fixes it, and the other limiting frame 64 presses the conveyor belt 25 on the surface of the first auxiliary roller 26. Then, the piston rod of the adjusting cylinder 58 is extended and pushes the first auxiliary roller 26 to slide inside the second through groove 57, thereby reducing the distance between the electric roller 23 and the first auxiliary roller 26, and the top of the conveyor belt 25 is in a relaxed state.

[0069] S53. In this state, the tire 7 stops rotating and adheres to the surface of the conveyor belt 25. Then, the tire 7 is controlled to start on the surface of the conveyor belt 25. The friction between the tire 7 and the conveyor belt 25 increases. The conveyor belt 25 in a loose state is squeezed and pulled by the rotational force of the tire 7. The conveyor belt 25 is pulled and folded and wraps the bottom part of the tire 7. The conveyor belt 25 applies resistance to the tire 7 in the reverse direction, simulating the state of the tire 7 starting from a deep state. After that, the tire 7 stops rotating, and the torque sensor 18 measures the torque of the tire 7 in this state.

[0070] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

Claims

1. A new energy vehicle tire starting torque measurement device, characterized by: The invention comprises a measuring assembly (1) and a track assembly (2), wherein the measuring assembly (1) comprises a bracket (15) and a torque sensor (18) rotatably connected to one side of the bracket (15), and one end of the torque sensor (18) is connected to a tire (7); The track assembly (2) comprises two baffles (22) and a conveyor belt (25) arranged between the two baffles (22); an adjustment assembly (5) is installed at one end of the baffle (22); and a limiting assembly (6) is installed at both ends of the baffle (22); A tidying assembly (4) and a plurality of lifting assemblies (3) are installed between the two baffles (22), each of the lifting assemblies (3) comprising two lifting cylinders (31) installed on the side walls of the baffle (22) and a bearing seat (32) connected to the piston rod of the lifting cylinder (31), and a support roller (33) is rotatably connected between the two bearing seats (32); The arranging assembly (4) comprises a positioning block (42) arranged between two baffles (22) and a telescopic rod (43) hinged to the positioning block (42), and a arranging roller (44) is installed on the top of the telescopic rod (43).

2. The new energy vehicle tire starting torque measuring device according to claim 1, characterized in that: The measuring assembly (1) further comprises a first electric slide rail (11) and a column (12) slidably connected to the top of the first electric slide rail (11); a second electric slide rail (13) is vertically mounted on the top of the column (12); a support arm (14) is slidably connected to the side wall of the second electric slide rail (13); the bracket (15) is rotatably connected to the top of the support arm (14); a rotating motor (17) is vertically mounted upward at one end of the support arm (14) away from the second electric slide rail (13); an output end of the rotating motor (17) passes through the support arm (14) and is connected to the bracket (15); a driving motor (16) is mounted on one side of the bracket (15); and an output end of the driving motor (16) is connected to one end of a torque sensor (18).

3. The new energy vehicle tire starting torque measuring device according to claim 1, characterized in that: The track assembly (2) further comprises a support leg (21), the two baffles (22) are both mounted on the top of the support leg (21), a motorized roller (23), a first auxiliary roller (26) and a second auxiliary roller (27) are rotatably connected between the two support legs (21), the first auxiliary roller (26) and the second auxiliary roller (27) are located on the same side of the baffle (22) and are arranged vertically, the first auxiliary roller (26) is located above the second auxiliary roller (27), the conveyor belt (25) is transmission-connected to the outer side walls of the motorized roller (23), the first auxiliary roller (26) and the second auxiliary roller (27), the diameter of the motorized roller (23) is larger than the diameter of the first auxiliary roller (26) and the second auxiliary roller (27), an auxiliary block (24) is mounted between the two baffles (22) and in the middle thereof, the top and bottom of the auxiliary block (24) both being in contact with the inner wall of the conveyor belt (25).

4. The new energy vehicle tire starting torque measurement device according to claim 1, characterized in that: The arranging assembly (4) further comprises a fixed platform (41) connected between the two baffles (22), the two positioning blocks (42) are both mounted on the top of the fixed platform (41), the tops of the two positioning blocks (42) are both mounted with a bidirectional cylinder (45), and the two piston rod ends of the bidirectional cylinder (45) are respectively hingedly arranged with the two telescopic rods (43) hingedly connected to the corresponding positioning blocks (42).

5. The new energy vehicle tire starting torque measuring device according to claim 3, characterized in that: The adjustment component (5) includes four first through slots (51), and two first through slots (51) form a group. The two first through slots (51) in the same group are both opened on the side wall of a baffle (22) and arranged in an up-down arrangement. The two ends of the first auxiliary roller (26) are respectively inserted into two of the first through slots (51) located above the side wall of the baffle (22), and the two ends of the second auxiliary roller (27) are respectively inserted into two of the first through slots (51) located below the side wall of the baffle (22).

6. The new energy vehicle tire starting torque measuring device according to claim 5, characterized in that: A U-shaped frame (52) is installed on the opposite side of the two baffles (22), and the U-shaped frame (52) is located on the side wall of the baffle (22) and between the two corresponding first through grooves (51). An adjusting motor (53) is installed on the side wall of each U-shaped frame (52), and the output end of the adjusting motor (53) passes through the corresponding U-shaped frame (52) and is connected to a gear (54). A first rack (55) and a second rack (56) are respectively provided on the same end of the first auxiliary roller (26) and the second auxiliary roller (27). The first rack (55) is rotatably connected to the second auxiliary roller (27), and the first rack (55) is slidably connected to the inside of the first through groove (51) by a slider. The second rack (56) is rotatably connected to the first auxiliary roller (26), and the second rack (56) is slidably connected to the inside of the second rack (56) by a slider.

7. The new energy vehicle tire starting torque measuring device according to claim 6, characterized in that: A second through slot (57) is provided on the side wall of each second rack (56), and the end of the first auxiliary roller (26) is slidably connected to the inside of the second through slot (57). An adjusting cylinder (58) is horizontally installed on each second rack (56), and the piston rod of the adjusting cylinder (58) extends to the inside of the second through slot (57) and is rotatably connected to the corresponding end of the first auxiliary roller (26).

8. The new energy vehicle tire starting torque measuring device according to claim 1, characterized in that: The two groups of limiting components (6) each include a support seat (61), and the two support seats (61) are respectively installed at the two ends of the baffle (22). The top of each support seat (61) is rotatably connected to a rotating shaft (63), and the outer side wall of the rotating shaft (63) is installed with a limiting frame (64).

9. The new energy vehicle tire starting torque measuring device according to claim 8, characterized in that: A rotating cylinder (62) is installed on the top of each support seat (61), and the output end of the rotating cylinder (62) is connected to the end of the corresponding rotating shaft (63). A rubber pad (65) with evenly arranged bumps is connected to the side wall of each limiting frame (64).

10. A method for measuring the starting torque of a new energy vehicle tire, using a new energy vehicle tire starting torque measuring device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Install the tire (7) to be measured on one end of the torque sensor (18), then drive the tire (7) to rotate through the measuring component (1), drop the tire (7) to the surface of the conveyor belt (25) and rotate, and use the measuring component (1) to drive the tire (7) to apply pressure and steering force to the conveyor belt (25), and at this time measure the torque driven by the tire (7) through the torque sensor (18); S2, then the tire (7) is moved to the top of the lifting assembly (3), and the lifting cylinders (31) in the multiple lifting assemblies (3) respectively push the corresponding bearing seats (32) and support rollers (33) to move up and down, and the multiple support rollers (33) respectively push the conveyor belt (25) to move up and down, thereby making the conveyor belt (25) above the support rollers (33) in an uneven state, and driving the tire (7) to rotate and move quickly at the uneven position of the conveyor belt (25) through the measuring assembly (1). In this state, the change of the torque of the tire (7) on the uneven road surface can be simulated; S3, then the tire (7) is moved to the top of the lifting assembly (3), and the lifting cylinders (31) in the multiple lifting assemblies (3) respectively push the corresponding bearing seats (32) and support rollers (33) to move up and down, and the multiple support rollers (33) respectively push the conveyor belt (25) to move up and down, thereby making the conveyor belt (25) above the support rollers (33) in an uneven state, and the first electric slide rail (11) drives the column (12) to move horizontally, thereby controlling the tire (7) to walk on the uneven position of the conveyor belt (25), and at the same time driving the motor (16) to drive the tire (7) to rotate rapidly. In this state, the change of the torque of the tire (7) on the uneven road surface can be simulated; S4, when the tire (7) is at the position of the lifting component (3) to measure the torque, the tire (7) is twisted, the conveyor belt (25) is offset and folded, and the conveyor belt (25) in the offset and folded state is leveled by the finishing component (4); S5. After the measurement is completed, the conveyor belt (25) stops driving, and the adjusting component (5) adjusts the tightness of the conveyor belt (25), that is, the upper length of the conveyor belt (25) increases and the lower length shortens. The two sets of limiting components (6) are used to press the conveyor belt (25), and then the tightness of the upper part of the conveyor belt (25) is controlled. In this state, the tire (7) stops rotating and fits on the surface of the conveyor belt (25). Then, the tire (7) is controlled to start on the surface of the conveyor belt (25). The friction between the tire (7) and the conveyor belt (25) increases, and the conveyor belt (25) in a loose state is squeezed and pulled by the rotational force of the tire (7) when it rotates. The conveyor belt (25) is pulled and folded and wraps the bottom part of the tire (7). The conveyor belt (25) applies resistance to the tire (7) in the reverse direction, simulating the state of the tire (7) starting in place in a deep state. After that, the tire (7) stops rotating, and the torque sensor (18) measures the torque of the tire (7) in this state.

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