A device for dynamic balancing of vehicle tires

Abstract

The utility model relates to tire dynamic balance detection technical field especially relates to a kind of for automobile tire dynamic balance detection equipment.Its technical scheme:including detection box and mounting shaft, the mounting shaft is rotatably connected in detection box side wall, fixed with locating sleeve on the mounting shaft, taper block is installed on the mounting shaft and located locating sleeve outside, check valve component is arranged between the taper block and mounting shaft, threaded sleeve is connected with screw thread on the mounting shaft, rocker is fixed on the threaded sleeve outside, threaded sleeve is located taper block side away from locating sleeve.The utility model is provided with check valve structure on mounting shaft, when taper block is extruded fixed to wheel hub mounting hole, can avoid the locking loosening caused by rotation, not only guarantee the detection accuracy, and improve the security of detection process.

Description

Technical Field

[0001] This utility model relates to the field of tire dynamic balancing testing technology, specifically to a device for testing the dynamic balancing of automobile tires. Background Technology

[0002] Tire dynamic balancing is a crucial technology for ensuring stable operation of car tires during high-speed rotation. When a tire rotates, uneven mass distribution generates centrifugal force, causing the axis of rotation to align with the center of gravity, resulting in vibration. A dynamic balancing machine uses piezoelectric sensors to detect the tire's imbalance and transmits the signal to a computer system for analysis, ultimately determining the phase and magnitude of the imbalance.

[0003] During the testing process, the tire needs to be installed on the mounting shaft of the testing box. The rotation of the mounting shaft simulates the rotation of the tire during operation to achieve the testing objective. Therefore, stable installation of the tire is an important factor in ensuring the accuracy and safety of the test. On this basis, since the tire is usually locked using a threaded locking method, it is easy to loosen during high-speed rotation. If it becomes loose, the rotation of the tire will vibrate, affecting the accuracy of the test results. If it becomes loose, there is also a safety risk of the tire falling off. Utility Model Content

[0004] The purpose of this invention is to provide a device for testing the dynamic balance of automobile tires, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: it includes a detection box and a mounting shaft, the mounting shaft is rotatably connected to the side wall of the detection box, a positioning sleeve is fixed on the mounting shaft, a conical block is mounted on the mounting shaft and located outside the positioning sleeve, a check valve assembly is provided between the conical block and the mounting shaft, a threaded sleeve is threadedly connected to the mounting shaft, a rocker arm is fixed outside the threaded sleeve, and the threaded sleeve is located on the side of the conical block away from the positioning sleeve.

[0006] Preferably, the check valve assembly includes a guide block and a guide groove. The guide block is fixed to the inner wall of the conical block, and the guide groove is formed on the outer wall of the mounting shaft. The guide block is slidably connected in the guide groove. A fixed tooth block is fixed in the guide groove. A telescopic tooth block is installed on the inner wall of the conical block. Both the telescopic tooth block and the fixed tooth block are right-angled triangular structures.

[0007] Preferably, a telescopic groove is provided inside the conical block at a position corresponding to the telescopic tooth block, the outer side of the telescopic tooth block is slidably connected to the telescopic groove, and a telescopic spring is fixed between the telescopic tooth block and the inner sidewall of the telescopic groove.

[0008] Preferably, an annular plate is installed on the outer side of the conical block, and a pull rope is fixed between the telescopic tooth block and the annular plate at the middle position on one side of the telescopic groove. A guide wheel is rotatably connected inside the conical block at a position corresponding to the pull rope.

[0009] Preferably, a conical groove is provided on the inner side of the positioning sleeve, and the inclination angle of the side wall of the conical groove is the same as the inclination angle of the outer side of the conical block.

[0010] Preferably, a control panel is fixed to the upper end of the testing box, a measuring rod is installed on the side of the testing box near the mounting shaft, and a drive device for driving the mounting shaft to rotate is installed inside the testing box.

[0011] Compared with the prior art, the beneficial effects of this utility model are: by setting a check structure on the mounting shaft, when the conical block presses and fixes the hub mounting hole, it can avoid the locking loosening caused by rotation, which not only ensures the accuracy of detection, but also improves the safety of the detection process. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the front appearance structure of an automotive tire dynamic balancing testing device according to the present invention;

[0013] Figure 2 This is a schematic diagram of the connection structure between the mounting shaft and the conical block of an automotive tire dynamic balancing testing equipment according to the present invention.

[0014] Figure 3 This utility model relates to a device for testing the dynamic balance of automobile tires. Figure 2 Enlarged structural diagram at point A in the middle;

[0015] Figure 4 This is a schematic diagram of the external structure of a conical block used in a dynamic balancing testing device for automobile tires according to this utility model.

[0016] In the diagram: 1. Detection box; 2. Mounting shaft; 21. Guide groove; 22. Fixing tooth block; 3. Positioning sleeve; 31. Conical groove; 4. Conical block; 41. Guide block; 42. Telescopic tooth block; 43. Telescopic groove; 44. Telescopic spring; 45. Annular plate; 46. Pull rope; 47. Guide wheel; 5. Threaded sleeve; 51. Rocker arm. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-4 This utility model provides a technical solution: including a detection box 1 and a mounting shaft 2. A control panel is fixed to the upper end of the detection box 1. A measuring rod is installed on the side of the detection box 1 near the mounting shaft 2. A driving device for driving the mounting shaft 2 to rotate is installed inside the detection box 1. The mounting shaft 2 is rotatably connected to the side wall of the detection box 1. A positioning sleeve 3 is fixed on the mounting shaft 2. A conical block 4 is installed on the mounting shaft 2 and outside the positioning sleeve 3. A conical groove 31 is opened on the inner side of the positioning sleeve 3. The inclination angle of the side wall of the conical groove 31 is the same as the inclination angle of the outer side of the conical block 4. A check valve assembly is provided between the conical block 4 and the mounting shaft 2. A threaded sleeve 5 is threadedly connected to the mounting shaft 2. A rocker arm 51 is fixed on the outer side of the threaded sleeve 5. The threaded sleeve 5 is located on the side of the conical block 4 away from the positioning sleeve 3.

[0019] The anti-return assembly includes a guide block 41 and a guide groove 21. The guide block 41 is fixed to the inner wall of the conical block 4, and the guide groove 21 is opened on the outer wall of the mounting shaft 2. The guide block 41 is slidably connected in the guide groove 21. A fixed tooth block 22 is fixed in the guide groove 21. A telescopic tooth block 42 is installed on the inner wall of the conical block 4. Both the telescopic tooth block 42 and the fixed tooth block 22 are right-angled triangular structures. A telescopic groove 43 is opened in the conical block 4 at a position corresponding to the telescopic tooth block 42. The outer side of the telescopic tooth block 42 is slidably connected in the telescopic groove 43, and a telescopic spring 44 is fixed between the telescopic tooth block 42 and the inner wall of the telescopic groove 43. An annular plate 45 is installed on the outer side of the conical block 4. A pull rope 46 is fixed between the telescopic tooth block 42 at the middle position on one side of the telescopic groove 43 and the annular plate 45. A guide wheel 47 is rotatably connected in the conical block 4 at a position corresponding to the pull rope 46.

[0020] Working principle: First, connect the entire device to an external power source. Then, install the tire onto the mounting shaft 2 and measure the tire data. Next, drive the mounting shaft 2 to rotate to achieve dynamic balance testing. During this process, for tire installation, simply pass the mounting shaft 2 through the mounting hole at the center of the tire, then insert the conical block 4 so that its end enters the conical groove 31 and presses against the tire mounting hole. Finally, the rotation of the threaded sleeve 5 pushes the conical block 4 to firmly press against the tire mounting hole, achieving the purpose of fixing. At this time, through the cooperation of the fixed tooth block 22 and the telescopic tooth block 42, it can be ensured that the conical block 4 can only move in one direction. Even if the threaded sleeve 5 loosens due to rotation during the testing process, the conical block 4 will not slip off, thus ensuring the stability of the installation. When disassembling, simply pull the annular plate 45. Under the compression of the telescopic spring 44, the telescopic tooth block 42 enters the telescopic groove 43, thereby breaking the cooperation between the telescopic tooth block 42 and the fixed tooth block 22. Finally, the conical block 4 can be pulled out to easily install and remove the tire.

[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for testing the dynamic balancing of automobile tires, comprising a testing box (1) and a mounting shaft (2), characterized in that: The mounting shaft (2) is rotatably connected to the side wall of the detection box (1). A positioning sleeve (3) is fixed on the mounting shaft (2). A conical block (4) is installed on the mounting shaft (2) and outside the positioning sleeve (3). A check valve assembly is provided between the conical block (4) and the mounting shaft (2). A threaded sleeve (5) is threadedly connected to the mounting shaft (2). A rocker arm (51) is fixed outside the threaded sleeve (5). The threaded sleeve (5) is located on the side of the conical block (4) away from the positioning sleeve (3).

2. The vehicle tire dynamic balancing testing equipment according to claim 1, characterized in that: The check valve assembly includes a guide block (41) and a guide groove (21). The guide block (41) is fixed to the inner wall of the conical block (4). The guide groove (21) is opened on the outer wall of the mounting shaft (2). The guide block (41) is slidably connected in the guide groove (21). A fixed tooth block (22) is fixed in the guide groove (21). A telescopic tooth block (42) is installed on the inner wall of the conical block (4). Both the telescopic tooth block (42) and the fixed tooth block (22) are right-angled triangular structures.

3. The vehicle tire dynamic balancing testing equipment according to claim 2, characterized in that: The conical block (4) has a telescopic groove (43) in the position corresponding to the telescopic tooth block (42). The outer side of the telescopic tooth block (42) is slidably connected in the telescopic groove (43), and a telescopic spring (44) is fixed between the telescopic tooth block (42) and the inner sidewall of the telescopic groove (43).

4. The vehicle tire dynamic balancing testing equipment according to claim 3, characterized in that: An annular plate (45) is installed on the outside of the conical block (4). A pull rope (46) is fixed between the telescopic tooth block (42) located in the middle of one side of the telescopic groove (43) and the annular plate (45). A guide wheel (47) is rotatably connected inside the conical block (4) and at the position corresponding to the pull rope (46).

5. The vehicle tire dynamic balancing testing equipment according to claim 1, characterized in that: The positioning sleeve (3) has a conical groove (31) on its inner side, and the inclination angle of the side wall of the conical groove (31) is the same as the inclination angle of the outer side of the conical block (4).

6. The vehicle tire dynamic balancing testing equipment according to claim 1, characterized in that: The upper end of the test box (1) is fixed with a control panel. A measuring rod is installed on the side of the test box (1) near the mounting shaft (2). A drive device for driving the mounting shaft (2) to rotate is installed inside the test box (1).

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