CN205192767U - Tire test atress platform - Google Patents

Abstract

The utility model discloses a tire test stress platform, which comprises a base, a tire rotating mechanism and a road surface state simulation device. The tire rotation mechanism is mainly composed of a column, a bracket and a speed regulating motor. The road surface state simulation device is located at the tire to be tested. Directly below, it is mainly composed of a lifting platform mechanism and a set of roller mechanism with adjustable inclination angle. The lifting platform mechanism is composed of a platen and two hydraulic cylinders equipped with displacement sensors. The two hydraulic cylinders are fixed on the base. Both ends of the table are supported, and the roller mechanism is composed of a bearing seat, a stepping motor, a rotor frame and a roller. Motor shaft connection. The utility model has the advantages that: the road surface state simulating device can simulate various road surface conditions, and can apply different loads to the tires, which can be detected by the torque sensor; the structure is simple, the volume is small, and it is easy to manufacture and install.

Description

Tire testing platform

technical field

The utility model belongs to the technical field of automobile tire detection, relates to an automobile tire detection device, in particular to a tire test force bearing platform.

Background technique

Tires are an important part of a vehicle, not only to bear the weight of the vehicle body, but also to perform actions such as steering, acceleration and braking of the vehicle. Therefore, it is very important to test the performance of the tires. Most of the existing tire testing force platforms are roller structures, which are composed of a tire rotation mechanism and a roller force mechanism. The two mechanisms are separated. This split tire test force platform cannot simultaneously simulate the tire under load The state of motion on the uphill and downhill and various inclined roads, and the equipment is relatively cumbersome and bulky, which has certain limitations in use.

Contents of the invention

The purpose of the utility model is to propose a tire testing force platform that can simulate various road conditions.

The technical solution for achieving the above purpose is: a tire testing force platform, including a base, a tire rotating mechanism and a road surface state simulation device. The tire rotating mechanism is mainly composed of a column, a bracket and a speed regulating motor, and the column and the bracket are fixed on the base The speed regulating motor is installed on the upper end of the column, the shaft end of the speed regulating motor is connected with a tire installation shaft, the tire installation shaft is sleeved on the bracket, and a torque sensor is installed on the tire installation shaft; the road surface state simulation device is located on the tire under test. Directly below, it is mainly composed of a lifting platform mechanism and a set of adjustable roller mechanism. The lifting platform mechanism is composed of a platen and two hydraulic cylinders. The two hydraulic cylinders are fixed on the base and support the platform. At both ends of the plate, a displacement sensor is installed on each of the two hydraulic cylinders. The roller mechanism is composed of a bearing seat, a stepping motor, a rotor frame and a roller. The roller is installed on the rotor frame, and the roller can rotate freely. The rotor frame is installed on the bearing housing and connected with the stepper motor shaft fixed on the table.

Further, a tire protective cover is provided on the top of the column.

Further, the surface of the roller is replaceable polymer composite material.

The utility model has the advantages that: 1. The road surface state simulation device can simulate various road surface conditions, and can apply different loads to the tires at the same time. Performance testing under road conditions; 2. When used with simple measuring tools such as vernier calipers, it can be used to test the wear and life of the tire surface when there are foreign objects and damage; 3. Simple structure, small size, easy to manufacture and install.

Description of drawings

Fig. 1 is a schematic front view of an embodiment of the utility model.

Fig. 2 is a left side view of the embodiment shown in Fig. 1 .

In the figure: 1. base, 2. column, 3. stepping motor, 4. speed regulating motor, 5. tire mounting shaft, 6. bracket, 7. tire protective cover, 8. torque sensor, 9. tested tire, 10. Roller, 11. Rotor frame, 12. Bearing seat, 13. Platen, 14. Hydraulic cylinder, 15. Displacement sensor.

detailed description

Below in conjunction with accompanying drawing, the utility model is further described.

As shown in accompanying drawings 1 and 2, the utility model includes a base 1, a tire rotating mechanism and a road surface state simulation device. The tire rotating mechanism is composed of a column 2, a bracket 6 and a speed regulating motor 4, and the column 2 and the bracket 6 are fixed on the base. 1, the speed regulating motor 4 is installed on the upper end of the column 2, the shaft end of the speed regulating motor 4 is connected with the tire installation shaft 5, the tire installation shaft 5 is installed on the bracket 6 through the bearing support, and the tire installation shaft 5 is equipped with a torque sensor 8. The road surface state simulation device is located directly below the tested tire 9. It is mainly composed of a lifting platform mechanism and a set of roller mechanism with adjustable inclination angle. The lifting platform mechanism is composed of a platen 13 and two hydraulic cylinders 14. The platform Plate 13 is a rectangular flat plate, two hydraulic cylinders 14 are fixedly installed on the base 1 and support the two ends of platen 13, a displacement sensor 15 is respectively installed on the two hydraulic cylinders 14; The motor 3, the rotor frame 11 and the roller 10 are composed. The roller 10 is installed on the rotor frame 11. The roller 10 can rotate freely on the rotor frame 11. The rotor frame 11 is installed on the bearing seat 12 and fixed on the platen. 13 on the stepper motor 3-axis connection.

In this embodiment, a tire protective cover 7 is arranged on the top of the column 2 to ensure the safety of the test; the surface of the roller 10 is a replaceable polymer composite material, which is used to simulate road surfaces with different adhesion coefficients.

When testing, the tested tire 9 is installed and fixed on the tire mounting shaft 5, the tire protective cover 7 is covered, and the speed regulating motor 4 is started, and the speed regulating motor 4 drives the tested tire 9 to rotate at a certain speed. Turn on the hydraulic system and adjust the lifts of the two hydraulic cylinders 14 respectively to lift the platen 13 so that the surface of the roller 10 is in contact with the tire 9 to be tested for force. The lifts of the two hydraulic cylinders 14 are different, and the platen 13 The front and rear heights of 13 are different, which can simulate the stress situation of the tested tire 9 going uphill and downhill; the rotor frame 11 is driven by the stepping motor 3 to make it rotate at a certain angle, so as to realize the change of the inclination angle of the roller 10, namely The stress condition of the tested tire 9 on an inclined road surface can be simulated. The contact pressure between the tested tire 9 and the roller 10 is calculated by the torque sensor 8, and the displacement sensor 15 and the torque sensor 8 are used as signal sources for different loads and road conditions.

Claims (3)

1. A tire test force platform, comprising a base, a tire rotation mechanism and a road surface state simulation device, the tire rotation mechanism is composed of a column, a support and a speed-regulating motor, the column and the support are fixed on the base, and the speed-regulating motor is installed on the On the upper end of the column, the shaft end of the speed regulating motor is connected with a tire installation shaft, the tire installation shaft is sleeved on the bracket, and a torque sensor is installed on the tire installation shaft; it is characterized in that: the road surface state simulation device is located directly below the tested tire, It consists of a lifting platform mechanism and a set of adjustable roller mechanism. The lifting platform mechanism is composed of a platform and two hydraulic cylinders. The two hydraulic cylinders are fixed on the base and support the two ends of the platform. , each of the two hydraulic cylinders is equipped with a displacement sensor. The roller mechanism is composed of a bearing seat, a stepping motor, a rotor frame and a roller. The roller is installed on the rotor frame, and the roller can rotate freely. The rotor frame is installed on the On the bearing seat and connected with the stepper motor shaft fixed on the platen. 2. The tire testing platform according to claim 1, characterized in that: a tire protective cover is arranged on the top of the column. 3. The tire testing force platform according to claim 1, characterized in that: the surface of the roller is made of replaceable polymer composite material.