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

Abstract

The application is suitable for the technical field of tire torque measurement, and provides a new energy vehicle tire starting torque measuring device and a working method thereof.The device comprises a measuring assembly and a track assembly.The measuring assembly comprises a support and a torque sensor rotatably connected to one side of the support.The torque sensor is connected with a tire at one end.The track assembly comprises two baffles and a conveying belt arranged between the two baffles.The baffle is mounted with an adjusting assembly at one end.The baffle is mounted with a limiting assembly at both ends.The device solves the problem that the measuring track is easily damaged, needs to be repaired, and affects the measurement data.The device is provided with a lifting assembly, a lifting cylinder drives a bearing seat and a supporting roller to adjust the supporting height up and down, measures the torque when the tire walks or rotates, adapts to the concave-convex road surface, can be reused after supporting the conveying belt and is not easy to be damaged, the height can be adjusted according to the requirements in the process of tire measurement, and the data measurement precision is improved.

Description

TECHNICAL FIELD

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

[0002] The measurement of new energy vehicle tire torque is an important link to ensure vehicle performance and safety. Tire torque refers to the torsional moment that the tire receives when rotating, which reflects the friction between the tire and the ground and the output of the vehicle power system. Tire torque measurement is of great significance for understanding the power performance, transmission efficiency and brake performance of the vehicle, and is also an important basis for vehicle maintenance and fault diagnosis.

[0003] At present, the existing device is by installing the tire vertically and driving it to rotate when measuring. The tire rolls on the conveyor belt, and then the torque measurement is completed. However, this way of measuring is single, and the tire can only be measured on a flat surface. It cannot simulate other road conditions for torque measurement. Workers improve the existing way by replacing the conveyor belt with a track. The track is provided with a soil structure that simulates a concave-convex road surface. Then the tire is controlled to walk on the soil to achieve the purpose of torque testing.

[0004] However, when measuring the tire torque on the soil track, the rotation speed of the tire must be controlled. Slow rotation walking measurement will affect the accuracy of the measurement. If the tire is tried to be rotated quickly, it may 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

[0005] In view of the deficiencies of the prior art, the purpose of the present application is to provide a new energy vehicle tire starting torque measurement device and a working method thereof.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a new energy vehicle tire starting torque measurement device, comprising a measurement assembly and a track assembly, the measurement assembly comprising a support and a torque sensor rotatably connected to one side of the support, one end of the torque sensor being connected with a tire.

[0007] The track assembly comprises two baffles and a conveyor belt arranged between the two baffles, one end of the baffle being provided with an adjusting assembly, and both ends of the baffle being provided with a limiting assembly.

[0008] Two baffles are provided with an arrangement assembly and a plurality of lifting assemblies. Each lifting assembly comprises two lifting cylinders mounted on the side wall of the baffle and a bearing seat connected to the piston rod of the lifting cylinder. Two bearing seats are rotatably connected with a supporting roller.

[0009] The arrangement assembly comprises positioning blocks arranged between the two baffles and telescopic rods hinged to the positioning blocks, and the top of the telescopic rods is provided with an arrangement roller.

[0010] The application is further provided that: the measuring assembly further comprises a first electric sliding rail and a stand column slidingly connected to the top of the first electric sliding rail, the top of the stand column is vertically provided with a second electric sliding rail, the side wall of the second electric sliding rail is slidingly connected with a support arm, the support arm is rotatably connected with a bracket above, the end of the support arm away from the second electric sliding rail is vertically upwardly provided with a rotary motor, the output end of the rotary motor penetrates through the support arm and is connected with the bracket, one side of the bracket is provided with a driving motor, and the output end of the driving motor is connected with one end of a torque sensor.

[0011] The application is further provided that: the track assembly further comprises two supporting legs, the two baffles are arranged on the top of the two supporting legs, and an electric roller, a first auxiliary roller and a second auxiliary roller are rotatably connected between the two supporting legs, the first auxiliary roller and the second auxiliary roller are arranged on the same side of the baffles and are arranged in an up-down manner, the first auxiliary roller is above the second auxiliary roller, the conveying belt is drivingly 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 that of the first auxiliary roller and the second auxiliary roller, and an auxiliary block is arranged between the two baffles and at the middle position of the two baffles, and the top surface and the bottom of the auxiliary block are in close contact with the inner wall of the conveying belt.

[0012] By adopting the above technical scheme, the tire is arranged at one end of the torque sensor, and the driving motor provides power to rotate the tire. The first electric sliding rail moves the tire above the auxiliary block, and the second electric sliding rail drives the tire to move downward and be in close contact with the conveying belt for rotation. During the rotation process, the second electric sliding rail continues to drive the tire to press downward, and the tire is subjected to reverse extrusion friction of the auxiliary block and the conveying belt. Then, the rotary motor drives the tire to turn and keep rotating. In this process, the torque sensor monitors the torque value of the tire in different states in real time, ensuring the measurement accuracy. In addition, the lifting cylinder drives the corresponding bearing seat and the supporting roller to move up and down, thereby adjusting the support height of the supporting roller to the conveying belt. The tire walks or rotates in place at the positions of multiple lifting assemblies, thereby being capable of measuring the torque of the tire on the concave-convex road surface. The lifted conveying belt can be repeatedly used and is not easy to be damaged, and its height can be adjusted according to the requirements during the tire measurement process.

[0013] The application is further provided that: the arrangement assembly further comprises a fixing table connected between the two baffles, and the two positioning blocks are arranged on the top of the fixing table, and the top of the two positioning blocks is provided with a double-acting cylinder, and the two piston rod ends of the double-acting cylinder are respectively hingedly arranged with the two telescopic rods hingedly arranged on the corresponding positioning blocks.

[0014] By adopting the technical scheme, when the tire position measurement torque of the lifting assembly, the tire is twisted, the conveying belt is offset and folded, and the two double-action cylinders are simultaneously started to stretch and retract, the two double-action cylinders drive the corresponding two telescopic rods and the arranging rollers to swing respectively, so that the four arranging rollers simultaneously apply four-direction pushing forces to the inner wall of the conveying belt, so that the conveying belt is flattened, and the offset wear of the conveying belt in the simulation process is reduced.

[0015] The application is further provided that: the adjusting assembly comprises four first through-slots, and two first through-slots are a group, the two first through-slots in the same group are arranged on the side wall of one baffle in an up-down arrangement, the two ends of the first auxiliary roller are respectively inserted into the two first through-slots above the side wall of the baffle, and the two ends of the second auxiliary roller are respectively inserted into the two first through-slots below the side wall of the baffle.

[0016] The application is further provided that: the side wall of each U-shaped frame is provided with an adjusting motor, the output end of the adjusting motor penetrates through the corresponding U-shaped frame and is connected with a gear, the same end of the first auxiliary roller and the second auxiliary roller is respectively provided with a first rack and a second rack, the first rack is rotationally connected with the second auxiliary roller, the first rack is slidably connected in the first through-slot by a sliding block, the second rack is rotationally connected with the first auxiliary roller, and the second rack is slidably connected in the second through-slot by a sliding block.

[0017] The application is further provided that: the side wall of each second rack is provided with a second through-slot, the end of the first auxiliary roller is slidably connected in the second through-slot, and each second rack is horizontally provided with an adjusting cylinder, the piston rod of the adjusting cylinder extends into the second through-slot and is rotationally connected with the corresponding end of the first auxiliary roller.

[0018] The application is further provided that: the two groups of limiting assemblies each comprise a support seat, the two support seats are respectively mounted at the two ends of the baffle, the top of each support seat is rotationally connected with a rotating shaft, and the outer side wall of the rotating shaft is mounted with a limiting frame.

[0019] The application is further provided that: the top of each support seat is mounted with a rotating cylinder, the output end of the rotating cylinder is connected with the end of the corresponding rotating shaft, and the side wall of each limiting frame is connected with a rubber pad provided with uniformly arranged protrusions.

[0020] By adopting the above technical scheme, when the first auxiliary roller is away from the motor roller and the second auxiliary roller is close to the motor roller, the top length of the conveying belt is greater than the bottom length, the rotating cylinder drives the limiting frame to swing, so that the conveying belt is fixed on the motor roller and the first auxiliary roller by the two limiting frames respectively, the adjusting cylinder pushes the first auxiliary roller to slide, the distance between the first auxiliary roller and the motor roller is reduced, the top of the conveying belt is loosened, the tire in the static state is attached to the surface of the conveying belt, and then the tire is started to rotate, the loose conveying belt is squeezed and pulled by the rotating force of the tire to be folded and wrapped around the bottom of the tire, and then resistance is applied to the tire in the opposite direction, so that the tire is simulated to be deeply stuck in the starting state, the functionality of the measuring device is improved, when the limiting frame presses the conveying belt, the rubber pad provided with the protrusion increases the friction between the conveying belt to prevent slipping, and when the adjusting cylinder adjusts the position of the first auxiliary roller for the second time, the corresponding limiting assembly continues to operate, the corresponding limiting frame and the rubber pad continue to swing, the rubber pad keeps being attached to the conveying belt, the excess conveying belt is close to the motor roller, the excess length of the conveying belt is prevented from being bent between the first auxiliary roller and the corresponding limiting assembly, and the measurement accuracy is ensured.

[0021] A new energy automobile tire starting torque measurement method, using a new energy automobile tire starting torque measurement device as described above, comprising the following steps:

[0022] S1, install the tire to be measured to one end of the torque sensor, then drive the tire to rotate through the measuring assembly, drop the tire to the surface of the conveying belt to rotate, and use the measuring assembly to drive the tire to apply pressure and steering force to the conveying belt, at this time, the torque of the tire driven by the torque sensor is measured.

[0023] S2, then move the tire directly above the lifting assembly, the lifting cylinders in the plurality of lifting assemblies respectively push the corresponding bearing seats and support rollers to move up and down, the plurality of support rollers respectively push the conveying belt to move up and down, so that the conveying belt above the support rollers is in a concave-convex state, the tire is quickly rotated and walked at the concave-convex position of the conveying belt through the measuring assembly, in this state, the change of the torque of the tire on the concave-convex road surface can be simulated.

[0024] S3, then move the tire directly above the lifting assembly, the lifting cylinders in the plurality of lifting assemblies respectively push the corresponding bearing seats and support rollers to move up and down, the plurality of support rollers respectively push the conveying belt to move up and down, so that the conveying belt above the support rollers is in a concave-convex state, the vertical column is driven to move horizontally through the first motorized slide rail, so as to control the tire to walk at the concave-convex position of the conveying belt, and the tire is driven to rotate quickly through the driving motor, in this state, the change of the torque of the tire on the concave-convex road surface can be simulated.

[0025] S4, when the tire is at the position of the lifting assembly for measuring the torque, the tire is twisted, the conveying belt is deviated and folded, and the conveying belt in the deviated and folded state is flattened by the arrangement assembly.

[0026] S5, after the measurement is completed, the conveying belt is stopped, the adjusting assembly adjusts the tightness of the conveying belt, that is, the length of the upper conveying belt is increased and the length of the lower conveying belt is shortened, the conveying belt is pressed by the two sets of limiting assemblies, and then the tightness of the upper conveying belt is controlled, in this state, the tire is stopped and adheres to the surface of the conveying belt, and then the tire is started on the surface of the conveying belt, the friction between the tire and the conveying belt is increased, the conveying belt in a loose state is squeezed and pulled by the rotating force of the rotating tire, the conveying belt is folded and wraps the bottom part of the tire, the conveying belt applies resistance to the tire in the opposite direction, simulates the state of the tire starting in place in the deep sinking state, and then the tire is stopped, and the torque sensor measures the torque of the tire in this state.

[0027] In summary, the present application has at least one of the following beneficial technical effects:

[0028] (1) By arranging the lifting assembly, the lifting cylinder drives the corresponding bearing seat and the supporting roller to move up and down, thereby adjusting the supporting height of the supporting roller to the conveying belt, the tire walks or rotates in place at the positions of multiple lifting assemblies, thereby being able to measure the torque of the tire on the concave-convex road surface, and the lifted conveying belt can be repeatedly used and is not easily damaged, and its height can be adjusted according to the needs during tire measurement.

[0029] (2) By arranging the arrangement roller, when the tire is at the position of the lifting assembly for measuring the torque, the tire is twisted, the conveying belt is deviated and folded, and at the same time, the two bidirectional cylinders start to stretch and contract at the same time, the two bidirectional cylinders drive the corresponding two stretch rods and the arrangement roller to swing, so that the four arrangement rollers simultaneously apply four-directional pushing force to the inner wall of the conveying belt, so that the conveying belt is flattened, and the deviation and wear of the conveying belt during simulation are reduced.

[0030] (3) By arranging the first through slot and the limiting assembly, 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 conveying belt is greater than the bottom length, the rotating cylinder drives the limiting frame to swing, so that the conveying 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, the distance between the first auxiliary roller and the electric roller is reduced, the top of the conveying belt is relaxed, the tire in a stationary state adheres to the surface of the conveying belt, and then the tire is started to rotate, the loose conveying belt is squeezed and pulled by the rotating force of the tire to be folded and wrapped at the bottom of the tire, thereby applying resistance to the tire in the opposite direction, simulating the tire starting in place in the deep sinking state, and this simulation method improves the functionality of the measuring device.

[0031] (4) When the limiting frame is pressed by the conveying belt, the rubber pad provided with the protruding block 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 electric 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

[0032] Figure 1 It is a whole structure schematic diagram of the new energy automobile tire starting torque measuring device.

[0033] Figure 2 It is a measuring assembly structure schematic diagram in the application.

[0034] Figure 3 It is a bottom structure schematic diagram of Figure 2 .

[0035] Figure 4 It is a side view partial structure schematic diagram of Figure 2 .

[0036] Figure 5 It is a track assembly, adjusting assembly and limiting assembly cooperation structure schematic diagram in the application.

[0037] Figure 6 It is a partial structure schematic diagram of Figure 5 .

[0038] Figure 7 It is a arrangement assembly structure schematic diagram in the application.

[0039] Figure 8 It is a lifting assembly structure schematic diagram in the application.

[0040] Figure 9 It is an adjusting assembly and limiting assembly cooperation structure schematic diagram in the application.

[0041] Figure 10 It is a side view structure schematic diagram of Figure 9 .

[0042] Figure 11 It is a limiting assembly structure schematic diagram in the application.

[0043] Mark explanation: 1, measuring assembly; 11, first electric sliding rail; 12, stand; 13, second electric sliding rail; 14, support arm; 15, support; 16, driving motor; 17, rotary motor; 18, torque sensor;

[0044] 2, track assembly; 21, leg; 22, baffle; 23, electric roller; 24, auxiliary block; 25, conveying belt; 26, first auxiliary roller; 27, second auxiliary roller;

[0045] 3, lifting assembly; 31, lifting cylinder; 32, bearing seat; 33, supporting roller;

[0046] 4, arrangement assembly; 41, fixed table; 42, positioning block; 43, telescopic rod; 44, arrangement roller; 45, two-way cylinder;

[0047] 5, adjusting assembly; 51, first through slot; 52, U-shaped frame; 53, adjusting motor; 54, gear; 55, first rack; 56, second rack; 57, second through slot; 58, adjusting cylinder;

[0048] 6, limiting assembly; 61, supporting seat; 62, rotary cylinder; 63, rotating shaft; 64, limiting frame; 65, rubber pad;

[0049] 7, tire. DETAILED DESCRIPTION

[0050] It should be noted that the embodiments and the features in the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0051] It should be noted that all the technical and scientific terms used in the present application have the same meaning as that generally understood by the ordinary skilled in the art to which the present application belongs, unless otherwise specified.

[0052] Please refer to Figures 1-11 The present application provides the following technical solutions:

[0053] Embodiment one, please refer to Figures 1-4The utility model provides a new energy automobile tire starting torque measuring device, including measurement subassembly 1, measurement subassembly 1 includes first electric slide 11 and the vertical column 12 of sliding connection in the top of first electric slide 11, the top of vertical column 12 is installed with second electric slide 13, and the side wall of second electric slide 13 is slidingly connected with support arm 14, and first electric slide 11 and second electric slide 13 are all step motor linear slide rail sliding seat module, not specifically limited here, vertical column 12 is installed on the sliding seat of first electric slide 11, and second electric slide 13 is installed on the top of vertical column 12, and first electric slide 11 is used to drive vertical column 12 and second electric slide 13 synchronous movement, and second electric slide 13 is used to drive support arm 14 moves up and down, and the top of support arm 14 is rotatably connected with support 15, and the end of support arm 14 away from second electric slide 13 is vertically upwards installed with rotary motor 17, and the output of rotary motor 17 penetrates support arm 14 and is connected with support 15, and support arm 14 moves and drives support 15 and rotary motor 17 to move up and down, and rotary motor 17 is used to drive support 15 to rotate and adjust the angle, and one side of support 15 is installed with torque sensor 18, and one end of torque sensor 18 is connected with tire 7, and one side of support 15 is installed with drive motor 16, and the output of drive motor 16 is connected with one end of torque sensor 18, and drive motor 16 is used to exert driving force on torque sensor 18, and torque sensor 18 is used to exert driving force on tire 7, so that tire 7 starts to rotate, and torque sensor 18 is used to measure the torque when tire 7 starts and rotates, and at the same time, first electric slide 11, second electric slide 13 and rotary motor 17 cooperate and are used to adjust the angle and position of tire 7, to facilitate subsequent torque measurement of tire 7.

[0054] Referring to Figure 1 、 Figure 5 and Figure 6 , one side of measurement subassembly 1 is provided with track assembly 2, and track assembly 2 is used to bear tire 7, that is, tire 7 is tested and rubbed on track assembly 2, to simulate the torque value of tire 7 on the actual road surface, and the specific structure of track assembly 2 is as follows:

[0055] Referring to 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.

[0056] 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.

[0057] Example two, since the conveyor 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 to measure the torque. In order to meet the needs, the conveyor 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:

[0058] Referring to Figure 8 A plurality of lifting assemblies 3 are installed between the two baffles 22, which support the conveyor 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:

[0059] 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 to the support roller 33. The lifting cylinder 31 is used to drive the corresponding bearing seat 32 and the support roller 33 to move up and down, thereby adjusting the support height of the support roller 33 to the conveyor 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 conveyor 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.

[0060] In addition, although the structure of pushing the conveyor 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 conveyor belt 25. When the tire 7 is controlled to twist to simulate steering to measure the torque, the conveyor belt 25 will be laterally deflected and worn.

[0061] Referring to Figure 6 And Figure 7The arrangement assembly 4 is arranged between the two baffles 22, supports and arranges the conveying belt 25, reduces the offset wear of the conveying belt 25 in the simulation process, and comprises positioning blocks 42 arranged between the two baffles 22 and telescopic rods 43 hinged to the positioning blocks 42. The top of each telescopic rod 43 is provided with an arrangement roller 44. The arrangement assembly 4 further comprises a fixed table 41 connected between the two baffles 22. The two positioning blocks 42 are arranged on the top of the fixed table 41. The top of each positioning block 42 is provided with a bidirectional cylinder 45. The two piston rod ends of the bidirectional cylinder 45 are hingedly arranged with the two telescopic rods 43 corresponding to the positioning block 42. The bidirectional cylinder 45 is used to drive the corresponding two telescopic rods 43 to swing, so that the corresponding arrangement roller 44 is displaced on the inner top wall of the conveying belt 25, thereby pushing the recessed position of the conveying belt 25 to be flat. In addition, the telescopic rod 43 can adjust the position of the corresponding arrangement roller 44 by using the telescopic function, thereby changing the arrangement range of the arrangement roller 44.

[0062] Specifically, when the tire 7 measures the torque at the position of the lifting assembly 3, the tire 7 is twisted, the conveying belt 25 is offset and folded, and the two bidirectional cylinders 45 simultaneously start to stretch and contract. The two bidirectional cylinders 45 drive the corresponding two telescopic rods 43 and arrangement rollers 44 to swing, so that the four arrangement rollers 44 simultaneously exert four-directional pushing forces on the inner wall of the conveying belt 25, so that the conveying belt 25 is flattened, and the offset wear of the conveying belt 25 in the simulation process is reduced.

[0063] In the third embodiment, when the tire 7 is measured in place, the conveying belt 25 is in a tight state, and there is only single friction between the tire 7 and the conveying belt 25. The road does not exert a large reaction force on the tire 7, and can only simulate a dry road, but cannot simulate the torque when the tire 7 cannot walk in a deep state. The function is single.

[0064] Participate Figure 1 And Figures 9-11 Therefore, the adjusting assembly 5 is arranged at one end of the baffle 22, and the limiting assembly 6 is arranged at both ends of the baffle 22. The adjusting assembly 5 is used to adjust the tightness of the conveying belt 25. In the adjusting process, the limiting assembly 6 is used to limit the conveying belt 25, so as to avoid the influence of the measurement caused by the too loose conveying belt 25.

[0065] Reference Figures 9-11The adjusting assembly 5 comprises four first through grooves 51, two first through grooves 51 form a group, the two first through grooves 51 in the same group are arranged on the side wall of one baffle 22 in an up-down manner, the two ends of the first auxiliary roller 26 are respectively inserted into the two first through grooves 51 above the side wall of the baffle 22, and the two ends of the second auxiliary roller 27 are respectively inserted into the two first through grooves 51 below the side wall of the baffle 22. The first auxiliary roller 26 and the second auxiliary roller 27 can slide in the corresponding two first through grooves 51, so as to adjust the positions of the first auxiliary roller 26 and the second auxiliary roller 27.

[0066] Referring to Figures 9-11 The two baffles 22 are provided with U-shaped frames 52 on the sides away from each other, the U-shaped frames 52 are located on the side wall of the baffle 22 and between the two corresponding first through grooves 51, the side wall of each U-shaped frame 52 is provided with an adjusting motor 53, the output end of the adjusting motor 53 penetrates through the corresponding U-shaped frame 52 and is connected with a gear 54, the adjusting motor 53 is used for driving the gear 54 to rotate, the same end of the first auxiliary roller 26 and the second auxiliary roller 27 is respectively provided with a first rack 55 and a second rack 56, the first rack 55 is rotationally connected with the second auxiliary roller 27, and the first rack 55 is slidably connected to the inside of the first through groove 51 by a sliding block, the second rack 56 is rotationally connected with the first auxiliary roller 26, and the second rack 56 is slidably connected to the inside of the second rack 56 by a sliding block, when the gear 54 rotates, the first rack 55 and the second rack 56 can be driven to move at the same time and in opposite directions, when the first rack 55 and the second rack 56 move, the corresponding sliding blocks slide in the corresponding first through grooves 51, so as to prevent the first rack 55 and the second rack 56 from swinging and deviating, when the first rack 55 and the second rack 56 move, the corresponding first auxiliary roller 26 and the second auxiliary roller 27 can be driven to move, when the first auxiliary roller 26 moves away from the motorized roller 23, the second auxiliary roller 27 moves towards the motorized roller 23, and vice versa.

[0067] The two sets of limiting assemblies 6 each include a support seat 61 mounted at the two ends of the baffle 22, the top of each support seat 61 is rotationally connected with a rotating shaft 63, the outer side wall of the rotating shaft 63 is provided with a limiting frame 64, the top of each support seat 61 is provided with a rotary cylinder 62, the output end of the rotary cylinder 62 is connected with the end of the corresponding rotating shaft 63, the side wall of each limiting frame 64 is connected with a rubber pad 65 provided with protrusions, when the first auxiliary roller 26 moves away from the electric roller 23 and the second auxiliary roller 27 moves towards the electric roller 23, the conveying belt 25 is in a trapezoidal state, and the length of the top is greater than the length of the bottom, then the rotary cylinder 62 in the two sets of limiting assemblies 6 is driven to rotate, the rotary cylinder 62 drives the corresponding rotating shaft 63 and limiting frame 64 to swing, so that the limiting frame 64 moves towards the conveying belt 25, one of the limiting frames 64 presses the conveying belt 25 on the electric roller 23, and the other limiting frame 64 presses the conveying belt 25 on the surface of the first auxiliary roller 26, so that the conveying belt 25 is kept stationary and limited.

[0068] When the limiting frame 64 presses the surface of the conveying belt 25, the rubber pad 65 provided with protrusions is used to increase the friction between the conveying belt 25 and the limiting frame 64, so as to avoid slipping.

[0069] The side wall of each second rack 56 is provided with a second through groove 57, and the end of the first auxiliary roller 26 is slidingly connected in the second through groove 57. An adjusting cylinder 58 is horizontally mounted on each second rack 56, the piston rod of the adjusting cylinder 58 extends into the second through groove 57 and is rotationally connected with the corresponding end of the first auxiliary roller 26. After the conveying belt 25 is limited, the piston rod of the adjusting cylinder 58 is elongated and pushes the first auxiliary roller 26 to slide in 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 conveying belt 25 is in a relaxed state. In this state, the tire 7 stops rotating and adheres to the surface of the conveying belt 25, and then the tire 7 is started on the surface of the conveying belt 25, the friction between the tire 7 and the conveying belt 25 is increased, the conveying belt 25 in a loose state is squeezed and pulled by the rotating force of the tire 7, the conveying belt 25 is folded and wraps the bottom of the tire 7, the conveying belt 25 applies resistance to the tire 7 in the opposite direction, simulating the state of the tire 7 starting from the deep state, and then the tire 7 stops rotating, and the torque sensor 18 measures the torque of the tire 7 in this state, thereby greatly improving the functionality of the measuring device.

[0070] When the adjusting cylinder 58 adjusts the position of the first auxiliary roller 26, the corresponding set of limiting components 6 corresponding to the first auxiliary roller 26 continues to operate, that is, the rotating cylinder 62 of this set of limiting components 6 is started again to drive the rotating shaft 63 to rotate, the rotating shaft 63 drives the corresponding limiting frame 64 and the rubber pad 65 to swing, keeps the rubber pad 65 in contact with the conveying belt 25, and makes the excess length of the conveying belt 25 close to the position close to the motor roller 23, so as to prevent the excess length of the conveying belt 25 from being bent between the first auxiliary roller 26 and the corresponding set of limiting components 6.

[0071] Embodiment four, a new energy vehicle tire starting torque measurement method, using a new energy vehicle tire starting torque measurement device as described above, comprising the following steps:

[0072] 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 assembly 1, drop the tire 7 to the surface of the conveying belt 25 to rotate, and drive the tire 7 to apply pressure and steering force to the conveying belt 25 by the measuring assembly 1, at this time, the torque driven by the tire 7 is measured by the torque sensor 18.

[0073] S1 more specific steps are:

[0074] S11, install the tire 7 to be measured on one end of the torque sensor 18, then apply driving force to the torque sensor 18 and the tire 7 by the driving motor 16, so that the tire 7 can rotate, then move the tire 7 above the auxiliary block 24 by moving the vertical column 12 horizontally by the first electric sliding rail 11, and move the tire 7, the torque sensor 18 and the support arm 14, the bracket 15 driven by the second electric sliding rail 13 downward, so that the tire 7 is in contact with the surface of the conveying belt 25 to rotate, in the process of rotating, the second electric sliding rail 13 continues to drive the support arm 14 to move downward, and the tire 7 extrudes the conveying belt 25 downward, so that the tire 7 is extruded and rubbed by the reverse extrusion force of the auxiliary block 24 and the conveying belt 25.

[0075] S12, rotate the bracket 15 by the rotating motor 17, the bracket 15 drives the driving motor 16, the torque sensor 18 and the tire 7 to rotate, the tire 7 keeps rotating, and the torque sensor 18 monitors the torque value in real time in the process of changing the state of the tire 7.

[0076] S2, then move the tire 7 above the lifting assembly 3, the lifting cylinder 31 in the plurality of lifting assemblies 3 respectively drives the corresponding bearing seat 32 and the supporting roller 33 to move up and down, the plurality of supporting rollers 33 respectively drive the conveying belt 25 to move up and down, so that the conveying belt 25 above the supporting roller 33 is in a concave-convex state, the tire 7 is driven by the measuring assembly 1 to rotate and walk quickly at the concave-convex position of the conveying belt 25, in this state, the change of the torque of the tire 7 on the concave-convex road surface can be simulated.

[0077] S3, then the tire 7 is moved to the position directly above the lifting assembly 3, the lifting cylinders 31 in the plurality of lifting assemblies 3 respectively push the corresponding bearing seats 32 and the support rollers 33 to move up and down, the plurality of support rollers 33 respectively push the conveying belt 25 to move up and down, and then the conveying belt 25 above the support rollers 33 is in a state of unevenness, the first electric sliding rail 11 drives the vertical column 12 to move horizontally, thereby controlling the tire 7 to walk in the position of unevenness of the conveying belt 25, and the driving motor 16 drives the tire 7 to rotate quickly, in this state, the change of the torque of the tire 7 on the uneven road surface can be simulated.

[0078] S4, when the tire 7 measures the torque at the position of the lifting assembly 3, the tire 7 is twisted, and the conveying belt 25 is offset and folded, and the arrangement assembly 4 is used to flatten the conveying belt 25 in the offset and folded state.

[0079] S4, the more specific steps are:

[0080] S41, when the tire 7 measures the torque at the position of the lifting assembly 3, the tire 7 is twisted, and the conveying belt 25 is offset and folded, and at the same time, the two bidirectional cylinders 45 start to stretch and contract at the same time, the two bidirectional cylinders 45 respectively drive the corresponding two telescopic rods 43 and the arrangement rollers 44 to swing, so that the four arrangement rollers 44 simultaneously exert four-directional pushing force on the inner wall of the conveying belt 25, so that the conveying belt 25 is flattened.

[0081] S5, after the measurement is completed, the conveying belt 25 stops transmission, the adjusting assembly 5 adjusts the tightness of the conveying belt 25, that is, the length above the conveying belt 25 increases and the length below the conveying belt 25 shortens, the two sets of limiting assemblies 6 are used to compress the conveying belt 25, and then the tightness of the conveying belt 25 above is controlled, in this state, the tire 7 stops rotating and adheres to the surface of the conveying belt 25, and then the tire 7 is started on the surface of the conveying belt 25, the friction between the tire 7 and the conveying belt 25 increases, the conveying belt 25 in a loose state is squeezed and pulled by the rotating force of the tire 7 rotating, the conveying belt 25 is pulled and folded and wraps the part of the position of the tire 7, the conveying belt 25 applies resistance to the tire 7 in the opposite direction, simulates the state of the tire 7 starting in place in the deep state, and then the tire 7 stops rotating, and the torque sensor 18 measures the torque of the tire 7 in this state.

[0082] S51, after the measurement is completed, the conveying belt 25 stops transmission, the two adjusting 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 the opposite direction, that is, the first rack 55 drives the second auxiliary roller 27 to move to the middle of the baffle 22, and the second rack 56 drives the first auxiliary roller 26 to move to the end of the baffle 22, and the conveying belt 25 is in a trapezoidal state as a whole.

[0083] S52, then the rotating cylinder 62 in the two sets of limiting components 6 drives 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 towards the direction close to the conveyor belt 25, one of the limiting frames 64 presses the conveyor belt 25 on the fixed electric roller 23, 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 elongated 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.

[0084] S53, in this state, the tire 7 stops rotating and adheres to the surface of the conveyor belt 25, then the tire 7 is started 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 rotating force of the tire 7 rotating, the conveyor belt 25 is folded and wrapped around the bottom part of the tire 7, the conveyor belt 25 applies resistance to the tire 7, simulating the state of the tire 7 starting from the deep state, then the tire 7 stops rotating, and the torque sensor 18 measures the torque of the tire 7 in this state.

[0085] Obviously, the above-described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.

Claims

1. A new energy vehicle tire starting torque measuring device, characterized in that: Including measurement assembly (1) and track assembly (2), the measurement assembly (1) includes support (15) and torque sensor (18) rotatably connected to one side of support (15), one end of torque sensor (18) is connected with tire (7), one side of support (15) is provided with driving motor (16), the output end of driving motor (16) is connected with one end of torque sensor (18); The measurement assembly (1) further comprises a first electric sliding rail (11) and a stand (12) slidably connected to the top of the first electric sliding rail (11), a second electric sliding rail (13) is vertically installed on the top of the stand (12), and a support arm (14) is slidably connected to the side wall of the second electric sliding rail (13); The track assembly (2) comprises two baffles (22) and a conveyor belt (25) arranged between the two baffles (22), one end of the baffle (22) is provided with an adjusting assembly (5), and both ends of the baffle (22) are provided with a limiting assembly (6); A plurality of lifting assemblies (3) and arrangement assemblies (4) are installed between the two baffles (22), each lifting assembly (3) comprises 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), and a support roller (33) is rotatably connected between the two bearing seats (32); The arrangement assembly (4) comprises a positioning block (42) arranged between the two baffles (22) and a telescopic rod (43) hingedly connected to the positioning block (42), and the top of the telescopic rod (43) is provided with an arrangement roller (44); The track assembly (2) further comprises a support leg (21), both baffles (22) are installed on the top of the support leg (21), and an electric 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 arranged on the same side of the baffle (22) and are arranged in an upper and lower arrangement, the first auxiliary roller (26) is located above the second auxiliary roller (27), the conveyor 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 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 installed between the two baffles (22) and at the middle position thereof, and the top surface and the bottom of the auxiliary block (24) are fitted with the inner wall of the conveyor belt (25).

2. The new energy vehicle tire starting torque measuring device according to claim 1, characterized in that: The support (15) is rotatably connected above the support arm (14), and a rotary motor (17) is vertically upwardly installed on the end of the support arm (14) away from the second electric sliding rail (13), and the output end of the rotary motor (17) penetrates the support arm (14) and is connected with the support (15).

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

4. The new energy vehicle tire starting torque measuring device according to claim 1, characterized in that: The adjusting assembly (5) comprises first through grooves (51), the first through grooves (51) are four, and two first through grooves (51) form a group, the two first through grooves (51) in the same group are both arranged on the side wall of one baffle (22) and arranged in an upper and lower arrangement, and the two ends of the first auxiliary roller (26) are respectively inserted into two first through grooves (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 first through grooves (51) located below the side wall of the baffle (22).

5. The new energy vehicle tire starting torque measuring device according to claim 4, characterized in that: The side, away from each other, of the two baffles (22) is both provided with a U-shaped frame (52), the U-shaped frame (52) is located on the side wall of the baffle (22) and between the two corresponding first through grooves (51), the side wall of each U-shaped frame (52) is both provided with an adjusting motor (53), the output end of the adjusting motor (53) penetrates through the corresponding U-shaped frame (52) and is connected with a gear (54), one end of the first auxiliary roller (26) and the second auxiliary roller (27) is respectively provided with a first rack (55) and a second rack (56), the first rack (55) is rotatably connected with the second auxiliary roller (27), and the first rack (55) is slidably connected in the first through groove (51) by a sliding block, and the second rack (56) is rotatably connected with the first auxiliary roller (26), and the second rack (56) is slidably connected in the second rack (56) by a sliding block.

6. The new energy vehicle tire starting torque measuring device according to claim 5, characterized in that: The side wall of each second rack (56) is provided with a second through groove (57), and the end of the first auxiliary roller (26) is slidably connected in the second through groove (57), and the adjusting air cylinder (58) is horizontally mounted on each second rack (56), the piston rod of the adjusting air cylinder (58) extends into the second through groove (57) and is rotatably connected with the corresponding end of the first auxiliary roller (26).

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

8. The new energy vehicle tire starting torque measuring device according to claim 7, characterized in that: The top of each support seat (61) is mounted with a rotating air cylinder (62), the output end of the rotating air cylinder (62) is connected with the end of the corresponding rotating shaft (63), and the side wall of each limiting frame (64) is connected with a rubber pad (65) uniformly provided with a protrusion.

9. A method for measuring the starting torque of a new energy vehicle tire, using the new energy vehicle tire starting torque measuring device according to any one of claims 1-8. The method comprises the following steps: S1, install the tire (7) to be measured to one end of the torque sensor (18), then drive the tire (7) to rotate through the measuring assembly (1), drop the tire (7) to the surface of the conveyor belt (25) to rotate, and drive the tire (7) to exert pressure and steering force on the conveyor belt (25) by using the measuring assembly (1), at this time, the torque of the tire (7) is measured by the torque sensor (18); S2, then move the tire (7) to the top of the lifting assembly (3), the lifting cylinders (31) in the multiple sets of lifting assemblies (3) respectively push the corresponding bearing seats (32) and support rollers (33) to move up and down, the multiple support rollers (33) respectively push the conveyor belt (25) to move up and down, so that the conveyor belt (25) above the support rollers (33) is in a concave-convex state, the tire (7) is quickly rotated and walked on the concave-convex position of the conveyor belt (25) by the measuring assembly (1), in this state, the change of the torque of the tire (7) on the concave-convex road surface can be simulated; S3, then move the tire (7) to the top of the lifting assembly (3), the lifting cylinders (31) in the multiple sets of lifting assemblies (3) respectively push the corresponding bearing seats (32) and support rollers (33) to move up and down, the multiple support rollers (33) respectively push the conveyor belt (25) to move up and down, so that the conveyor belt (25) above the support rollers (33) is in a concave-convex state, the tire (7) is walked on the concave-convex position of the conveyor belt (25) by controlling the vertical column (12) to move horizontally through the first electric sliding rail (11), and the tire (7) is quickly rotated by driving the motor (16), in this state, the change of the torque of the tire (7) on the concave-convex road surface can be simulated; S4, when the tire (7) measures the torque at the position of the lifting assembly (3), the tire (7) is twisted, the conveyor belt (25) is deviated and folded, and the conveyor belt (25) in the deviated and folded state is flattened by using the arrangement assembly (4); S5, after the measurement is completed, the conveyor belt (25) stops driving, the adjusting assembly (5) adjusts the tightness of the conveyor belt (25), that is, the length above the conveyor belt (25) is increased and the length below the conveyor belt (25) is shortened, the conveyor belt (25) is compressed by using the two sets of limiting assemblies (6), then the tightness above the conveyor belt (25) is controlled, in this state, the tire (7) stops rotating and is attached to the surface of the conveyor belt (25), then the tire (7) is started on the surface of the conveyor belt (25), the friction between the tire (7) and the conveyor belt (25) is increased, the conveyor belt (25) in a loose state is squeezed and pulled by the rotating force of the tire (7) rotating, the conveyor belt (25) is folded and wraps the bottom part of the tire (7), the conveyor belt (25) applies resistance to the tire (7) in the opposite direction, simulating the state of the tire (7) starting in place in the deep sinking state, then the tire (7) stops rotating, and the torque sensor (18) measures the torque of the tire (7) in this state.

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