Hydraulic-driven balancing machine tire width automatic measuring scale

Abstract

The utility model discloses a hydraulic drive balancing machine tire width automatic measuring scale, which relates to the technical field of automobile part maintenance and detection equipment, and comprises a tire, a balancing machine box body, a balancing machine shaft and a measuring scale assembly, the measuring scale assembly comprises a protective cover support fixing shaft sleeve and a sensor fixing shaft sleeve, the protective cover bracket fixing shaft sleeve is provided with a protective cover bracket and a protective cover, and a protective cover bracket long rod is arranged below the protective cover bracket fixing shaft sleeve; a sensor rotating shaft sleeve is installed in an inner cavity of the sensor fixing shaft sleeve, a damping oil filling port is formed in the sensor rotating shaft sleeve, an ultrasonic distance measuring sensor support and an ultrasonic distance measuring sensor are further installed, and an ultrasonic distance measuring sensor short rod is installed below the sensor rotating shaft sleeve. According to the utility model, under the hydraulic driving action of damping oil, the measurement of the tire width is realized by utilizing the ultrasonic ranging principle, the operation is convenient, accurate and reliable, and the applicability is wide.

Description

Technical Field

[0001] The utility model is applicable to the technical field of automobile component maintenance and detection equipment, specifically an automatic measuring ruler for the tire width of a hydraulic-driven balancing machine. Background Art

[0002] There are two ways to determine the tire width of the existing balancing machine: manual measurement and automatic measurement. When using the manual measurement method, the operator needs to use a wheel width measuring ruler and manually operate to make the two measuring heads of the wheel width measuring ruler lean against both sides of the hub. According to the data indicated by the pointer of the wheel width measuring ruler at this time, manually input it into the balancing machine to start the measurement. This method is inconvenient to operate and has large human errors. When using the automatic measurement method, the automatic wheel width measuring ruler is installed on the balancing machine protective cover bracket, and the wheel width is measured while the protective cover is lowered. This measuring ruler is convenient to operate, but because its measuring position is related to the protective position where the protective cover is lowered, and this automatic measuring ruler uses the principle of ultrasonic ranging for measurement. When the ultrasonic wave is emitted to the hub, it is not the size of the tire to be measured, and there will be a large error from the actual requirement. For special-shaped hubs, it may occur that the ultrasonic wave emission position corresponds to the empty space of the hub, or the hub plane is higher than the tire surface, resulting in the situation where no value can be measured. Moreover, for tires close to both ends of the detection diameter range, this method cannot take into account both large and small sizes at the same time. For tires beyond its automatic measurement range, manual measurement and input of the tire width parameter are required to make up for the defects of the automatic measuring ruler. The operation is inconvenient, the applicable range is limited, and the degree of automation is greatly reduced. Content of the Utility Model

[0003] To solve the above problems, that is, to solve the problems proposed in the above background art, the utility model patent proposes an automatic measuring ruler for the tire width of a hydraulic-driven balancing machine, which includes a tire, a balancing machine box body, a balancing machine shaft, and a measuring ruler assembly. The measuring ruler assembly includes a pair of protective cover bracket fixed sleeves and a pair of sensor fixed sleeves installed on one side of the balancing machine box body. A protective cover bracket is installed in the inner cavities of the pair of protective cover bracket fixed sleeves. A protective cover is installed above the protective cover bracket, and a long rod of the protective cover bracket is installed below the protective cover bracket;

[0004] A sensor rotating shaft sleeve is installed in the inner cavities of the pair of sensor fixed sleeves. A damping oil filling port is provided on the sensor rotating shaft sleeve. An ultrasonic ranging sensor bracket is rotatably connected inside the sensor rotating shaft sleeve. An ultrasonic ranging sensor is installed above the ultrasonic ranging sensor bracket, a counterweight is installed below the ultrasonic ranging sensor bracket, and a short rod of the ultrasonic ranging sensor is installed below the sensor rotating shaft sleeve;

[0005] A connecting rod is installed between the long rod of the protective cover bracket and the short rod of the ultrasonic ranging sensor.

[0006] A further setting of this utility model patent is that a pair of hinge shafts are installed at both ends of the connecting rod, and the pair of hinge shafts are respectively installed at the lower ends of the long rod of the protective cover bracket and the short rod of the ultrasonic distance sensor.

[0007] A further setting of this utility model patent is that the length of the long rod of the protective cover bracket is greater than the length of the short rod of the ultrasonic distance sensor.

[0008] A further setting of this utility model patent is that the position and weight of the counterweight can be adjusted.

[0009] A further setting of this utility model patent is that the rotation angle of the ultrasonic distance sensor bracket is greater than the rotation angle of the protective cover bracket.

[0010] The beneficial technical effects of this utility model patent are as follows: The ultrasonic distance sensor installed on one side of the balancing machine protective cover is driven by a connecting rod and, under the hydraulic drive of damping oil, uses the principle of ultrasonic distance measurement to measure the width of the tire. When the protective cover is lowered, the ultrasonic distance sensor follows to the side of the tire, and its path can scan and cover the range from the maximum measurement diameter size of the balancing machine to the balancing shaft, which can meet the width measurement of various diameter-sized tires within the applicable range of the entire tire. By relying on the cross bar on the ultrasonic distance sensor bracket against the outside of the tire, it is ensured that the ultrasonic distance sensor can accurately correspond to the position of the tire tread, and accurate parameter measurement can also be carried out for special-shaped wheels. It is convenient to operate, accurate and reliable, efficient, highly automated, and has a wide range of applicability. Description of the Drawings

[0011] Figure 1 Is an isometric schematic diagram of this utility model;

[0012] Figure 2 Is a front view of the tire test installation of this utility model;

[0013] Figure 3 Is a side view of the tire test installation of this utility model.

[0014] Reference numerals: 1. Protective cover, 2. Fixed shaft sleeve of the protective cover bracket, 3. Protective cover bracket,

[0015] 4. Hinge shaft, 5. Connecting rod, 6. Counterweight, 7. Ultrasonic distance sensor bracket, 8. Ultrasonic distance sensor, 9. Sensor rotating shaft sleeve 10. Sensor fixed shaft sleeve 11. Damping oil filling port, 12. Long rod of the protective cover bracket, 13. Short rod of the ultrasonic distance sensor, 14. Tire, 15. Balancing machine housing, 16. Balancing machine shaft. Detailed Description of the Invention

[0016] The following refers to the attached Figures 1-3The preferred embodiments of the utility model patent will be described. Those skilled in the art should understand that these embodiments are only used to explain the technical principle of the utility model patent and are not intended to limit the protection scope of the utility model patent.

[0017] The utility model patent provides a hydraulic-driven automatic measuring ruler for the width of a balance machine tire, which includes a tire 14, a balance machine housing 15, a balance machine shaft 16, and a measuring ruler assembly. The measuring ruler assembly includes a pair of protective cover support fixed bushings 2 and a pair of sensor fixed bushings 10 installed on one side of the balance machine housing 15. A protective cover support 3 is installed in the inner cavity of the pair of protective cover support fixed bushings 2. A protective cover 1 is installed above the protective cover support 3, and a protective cover support long rod 12 is installed below the protective cover support 3. A sensor rotating bushing 9 is installed in the inner cavity of the pair of sensor fixed bushings 10. A damping oil filling port 11 is provided on the sensor rotating bushing 9. An ultrasonic distance measuring sensor support 7 is installed on the sensor rotating bushing 9. An ultrasonic distance measuring sensor 8 is installed above the ultrasonic distance measuring sensor support 7, and a counterweight 6 is installed below the ultrasonic distance measuring sensor support 7. An ultrasonic distance measuring sensor short rod 13 is installed below the sensor rotating bushing 9. A connecting rod 5 is installed between the protective cover support long rod 12 and the ultrasonic distance measuring sensor short rod 13. A pair of hinge shafts 4 are installed at both ends of the connecting rod 5, and the pair of hinge shafts 4 are also respectively installed at the lower ends of the protective cover support long rod 12 and the ultrasonic distance measuring sensor short rod 13. The length of the protective cover support long rod 12 is greater than the length of the ultrasonic distance measuring sensor short rod 13. The position and weight of the counterweight 6 can be adjusted. The rotation angle of the ultrasonic distance measuring sensor support 7 is greater than the rotation angle of the protective cover support 3.

[0018] The protective cover support 3 is formed by welding three parts and is installed in the protective cover support fixed bushing 2 and can rotate along the protective cover support fixed bushing 2. The protective cover support 3 is fixedly connected to the protective cover 1. The protective cover support long rod 12 on the protective cover support 3 and the ultrasonic distance measuring sensor short rod 13 on the ultrasonic distance measuring sensor support 7 are connected together by a connecting rod 5 with a hinge shaft 4, which can make the protective cover support long rod 12, the ultrasonic distance measuring sensor short rod 13, and the connecting rod 5 perform a quadrilateral movement, and can transmit the movement of the protective cover 1 to the ultrasonic distance measuring sensor 8 to realize the measurement of the tire width;

[0019] The ultrasonic distance measuring sensor bracket 7 is formed by welding five parts and can rotate along the sensor fixed bushing 10. The damping oil filling port 11 on the sensor rotating bushing 9 can be used to fill the damping oil. During the initial installation and use process, the damping oil can be filled through the damping oil filling port 11. The ultrasonic distance measuring sensor 8 is installed on the ultrasonic distance measuring sensor bracket 7, and it is used to identify and process the tread characteristics of the tire 14 to determine the parameters of the tire width. The counterweight 6 is installed on the ultrasonic distance measuring sensor bracket 7. By adjusting its position and weight, the device can be stabilized at the initial position under the hydraulic action of the damping oil. At the same time, the center of gravity of the ultrasonic distance measuring sensor bracket 7 should be located outside the sensor fixed bushing 10, so that the ultrasonic distance measuring sensor 8 always has a tendency to return to the initial position under the action of external forces and can be stably stationary in the initial state.

[0020] When performing wheel dynamic balancing, lower the protective cover 1. The shaft of the protective cover bracket 3 rotates counterclockwise along the protective cover bracket fixed bushing 2. The long rod 12 of the protective cover bracket drives the sensor rotating bushing 9 to rotate counterclockwise along the sensor fixed bushing 10 through the connecting rod 5 connected by the hinge shaft 4. Because the damping oil is a viscous liquid with adhesiveness, the ultrasonic distance measuring sensor bracket 7 moves from the initial position to the tire installation position under the hydraulic drive of the damping oil in the sensor rotating bushing 9 until the ultrasonic distance measuring sensor bracket 7 leans against the tire 14 and stops moving. At the same time, the protective cover bracket 3 triggers the system switch to start the measurement. When the tire 14 starts to rotate, the ultrasonic distance measuring sensor bracket 7 in contact with the tire 14 moves away from the tire 14 in the clockwise direction under the action of external forces. Under the hydraulic action of the damping oil, its movement is slow and stable. Until the device reaches the balanced state under the action of the counterweight 6, the ultrasonic distance measuring sensor 8 returns to the initial position, completing a tire width measurement process.

[0021] The long rod 12 of the protective cover bracket and the short rod 13 of the ultrasonic distance measuring sensor are connected to the connecting rod 5 through the hinge shaft 4. The length of the long rod 12 of the protective cover bracket is longer than that of the short rod 13 of the ultrasonic distance measuring sensor, so that during the measurement process, the rotation angle of the ultrasonic distance measuring sensor bracket 7 is greater than that of the protective cover bracket 3, which can ensure that when the protective cover bracket 3 is placed in the protective position, the rotation range of the ultrasonic distance measuring sensor 8 on the ultrasonic distance measuring sensor bracket 7 can cover all tires within the measurement diameter range of the balancing machine, realizing the automatic measurement of the tire width.

[0022] Although the utility model patent has been described with reference to the preferred embodiments, various improvements can be made thereto and components thereof can be replaced with equivalents without departing from the scope of the utility model patent. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any manner. The utility model patent is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0023] In the description of the utility model patent, the terms indicating directions or positional relationships such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the utility model patent. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0024] In addition, it should be noted that in the description of the utility model patent, unless otherwise clearly specified and defined, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the utility model patent can be understood according to specific circumstances.

[0025] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, so that a process, article or device / equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes the elements inherent in these processes, articles or devices / equipment.

[0026] So far, the technical solutions of the utility model patent have been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the utility model patent is obviously not limited to these specific embodiments. Without departing from the principle of the utility model patent, those skilled in the art can make equivalent changes or replacements to the relevant technical features, and the technical solutions after these changes or replacements will all fall within the protection scope of the utility model patent.

Claims

1. A hydraulically driven automatic tire width measuring ruler for a balancing machine, comprising a tire (14), a balancing machine housing (15), a balancing machine shaft (16) and a measuring ruler assembly, characterized in that: The measuring ruler assembly comprises a pair of protective cover bracket fixing sleeves (2) and a pair of sensor fixing sleeves (10) installed on one side of the balancing machine housing (15); a protective cover bracket (3) is installed in the inner cavity of the pair of protective cover bracket fixing sleeves (2); a protective cover (1) is installed above the protective cover bracket (3); and a protective cover bracket long rod (12) is installed below the protective cover bracket (3); A pair of sensor fixed shaft sleeves (10) are provided with sensor rotating shaft sleeves (9) in their inner cavities. A damping oil filling port (11) is provided on the sensor rotating shaft sleeves (9). An ultrasonic distance measuring sensor bracket (7) is rotatably connected in the sensor rotating shaft sleeves (9). An ultrasonic distance measuring sensor (8) is installed above the ultrasonic distance measuring sensor bracket (7). A counterweight (6) is installed below the ultrasonic distance measuring sensor bracket (7). An ultrasonic distance measuring sensor short rod (13) is installed below the sensor rotating shaft sleeves (9); A connecting rod (5) is installed between the long rod (12) of the protective cover bracket and the short rod (13) of the ultrasonic distance measuring sensor.

2. The hydraulically driven tire width automatic measuring ruler for balancing machines according to claim 1, characterized in that: A pair of hinged shafts (4) are installed at both ends of the connecting rod (5), and the pair of hinged shafts (4) are also installed on the lower ends of the long rod (12) of the protective cover bracket and the short rod (13) of the ultrasonic distance measuring sensor respectively.

3. The hydraulically driven tire width automatic measuring ruler for balancing machines according to claim 1, characterized in that: The length of the long rod (12) of the protective cover support is greater than the length of the short rod (13) of the ultrasonic distance measuring sensor.

4. The hydraulically driven tire width automatic measuring ruler for balancing machines according to claim 1, characterized in that: The position and weight of the counterweight (6) can be adjusted.

5. The hydraulically driven tire width automatic measuring ruler for balancing machines according to claim 1, characterized in that: The rotation angle of the ultrasonic distance measuring sensor bracket (7) is greater than the rotation angle of the protective cover bracket (3).

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