Automobile drive shaft angle measuring mechanism

Abstract

The application discloses a kind of automobile driving shaft included angle measuring mechanism, including driving shaft connecting assembly, angle measuring component and ball cage connecting assembly, linear slide rod (1) is fixed on the driving shaft connecting assembly, the angle measuring component is slidably installed on the linear slide rod (1), L-shaped slide rod (2) is fixed on the ball cage connecting assembly, one end of the L-shaped slide rod (2) is connected with the angle measuring component.The application can carry out included angle measurement to different diameter driving shaft under real vehicle condition, with simple structure, easy operation, measurement accurate and the like advantages.

Description

Technical Field

[0001] This invention relates to a measuring mechanism, and more particularly to a measuring mechanism for the included angle of an automobile drive shaft. Background Technology

[0002] The included angle of the drive shaft is a critical engineering parameter and a core parameter in the design of the transmission system. It directly affects the vehicle's power transmission efficiency, NVH performance, and the service life of its components.

[0003] Angle measurements need to cover all operating conditions, including not only data when the vehicle is stationary, but also angles under extreme conditions such as full load / no load and maximum steering. The diameter of the drive shaft is directly related to the engine displacement, torque, and vehicle model positioning. During vehicle development, the same model often uses engines with different displacements and torques, resulting in different drive shaft diameters. Currently, there is no simple automotive drive shaft angle measurement mechanism that can quickly and accurately measure the angles of drive shafts of different diameters under real-vehicle conditions for real-vehicle drive shaft angle verification during the development process. Summary of the Invention

[0004] The purpose of this invention is to provide a vehicle drive shaft angle measuring mechanism to solve the technical problems in the prior art.

[0005] The present invention provides a vehicle drive shaft angle measuring mechanism, including a drive shaft connecting assembly, an angle measuring assembly, and a ball cage connecting assembly. A linear slide rod is fixedly mounted on the drive shaft connecting assembly, and the angle measuring assembly is slidably mounted on the linear slide rod. An L-shaped slide rod is fixedly mounted on the ball cage connecting assembly, and one end of the L-shaped slide rod is connected to the angle measuring assembly.

[0006] In the aforementioned automotive drive shaft angle measuring mechanism, preferably, the drive shaft connection assembly includes a drive shaft retaining ring, a first-stage drive shaft adjusting retaining ring, a second-stage drive shaft adjusting retaining ring, a third-stage drive shaft adjusting retaining ring, and a fourth-stage drive shaft adjusting retaining ring. Two first guide rails are fixed on the outer wall of the drive shaft retaining ring, and both first guide rails extend circumferentially along the drive shaft retaining ring.

[0007] In the aforementioned automobile drive shaft angle measuring mechanism, preferably, each of the two first guide rails is provided with a first mounting hole, one end of the linear slide rod is located between the two first guide rails, and a first rotating shaft is installed at that end. The two ends of the first rotating shaft pass through the two first mounting holes respectively, and a first rubber ring is fixedly installed at both ends of the first rotating shaft.

[0008] In the aforementioned automotive drive shaft angle measuring mechanism, preferably, the angle measuring component includes a protractor and a connecting plate. The connecting plate is fixed on the protractor, and connecting posts are fixed on both sides of the protractor. Two connecting frames are fixed on the connecting plate, and the linear slide rod passes through the two connecting frames. The linear slide rod slides in cooperation with the connecting plate.

[0009] In the aforementioned automotive drive shaft angle measuring mechanism, preferably, the ball cage connection assembly includes a ball cage retaining ring, a primary ball cage adjusting retaining ring, and a secondary ball cage adjusting retaining ring, wherein the outer diameter of the primary ball cage adjusting retaining ring is equal to the inner diameter of the ball cage retaining ring, and the outer diameter of the secondary ball cage adjusting retaining ring is equal to the inner diameter of the primary ball cage adjusting retaining ring.

[0010] In the aforementioned automobile drive shaft angle measuring mechanism, preferably, two second guide rails are fixed on the outer wall of the ball cage retainer, and both second guide rails extend circumferentially along the ball cage retainer.

[0011] In the aforementioned automobile drive shaft angle measuring mechanism, preferably, a second mounting hole is provided on each of the two second guide rails, one end of the L-shaped slide rod is located between the two second guide rails, and a second rotating shaft is installed at that end. The two ends of the second rotating shaft pass through the two second mounting holes respectively, and a second rubber ring is fixedly installed at both ends of the second rotating shaft.

[0012] In the aforementioned automobile drive shaft angle measuring mechanism, preferably, the other end of the L-shaped slide bar is provided with an elongated hole, the width of which is equal to the diameter of the connecting post.

[0013] Compared with the prior art, the present invention includes a drive shaft connection assembly, an angle measuring assembly, and a ball cage connection assembly. The drive shaft connection assembly is used to be fastened to the drive shaft, and the ball cage connection assembly is used to be fastened to the inner or outer ball cage. The L-shaped slide bar and the angle measuring assembly can be used to quickly and accurately read the included angle of the vehicle drive shaft, and to perform real vehicle drive shaft angle verification during the development process. Attached Figure Description

[0014] Figure 1 This is an isometric view of the present invention;

[0015] Figure 2 This is an isometric view of the drive shaft retainer and angle measuring assembly in this invention;

[0016] Figure 3 This is a structural diagram showing the connection position between the linear slide bar and the first guide rail in this invention;

[0017] Figure 4 This is an isometric view of the angle measuring component in this invention;

[0018] Figure 5This is an isometric view of the drive shaft retaining ring and the four-stage adjusting retaining ring assembled together in this invention;

[0019] Figure 6 This is an isometric view of the ball cage retaining ring and L-shaped slide bar in this invention;

[0020] Figure 7 This is a schematic diagram of the connection between the L-shaped slide bar and the second guide rail in this invention;

[0021] Figure 8 This is a reference diagram showing the usage state of the present invention;

[0022] Figure 9 yes Figure 8 Enlarged view of part A in the image;

[0023] Figure 10 This is a side view of the drive shaft retaining ring in this invention.

[0024] Explanation of reference numerals in the attached drawings: 1. Linear slide bar; 2. L-shaped slide bar; 3. Drive shaft retaining ring; 4. Drive shaft primary adjustment retaining ring; 5. Drive shaft secondary adjustment retaining ring; 6. Drive shaft tertiary adjustment retaining ring; 7. Drive shaft quaternary adjustment retaining ring; 8. First guide rail; 9. First mounting hole; 10. First rotating shaft; 11. First rubber ring; 12. Protractor; 13. Connecting plate; 14. Connecting column; 15. Connecting frame; 16. Ball cage retaining ring; 19. Second guide rail; 21. Second rotating shaft; 22. Second rubber ring; 23. Long strip hole; 24. Drive shaft; 25. Ball cage. Detailed Implementation

[0025] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0026] Embodiments of the present invention: such as Figures 1-10 As shown, an automotive drive shaft angle measuring mechanism includes a drive shaft connecting assembly, an angle measuring assembly, and a ball cage connecting assembly. A linear slide rod 1 is fixedly mounted on the drive shaft connecting assembly, and the angle measuring assembly is slidably mounted on the linear slide rod 1. An L-shaped slide rod 2 is fixedly mounted on the ball cage connecting assembly, and one end of the L-shaped slide rod 2 is connected to the angle measuring assembly.

[0027] The drive shaft connection assembly is used to snap onto the vehicle's drive shaft 24, and the CV joint connection assembly is used to snap onto the vehicle's CV joint 25. It should be noted that it can snap onto both the outer and inner CV joints. The angle measuring assembly can move on the linear slide bar 1. Through its cooperation with the L-shaped slide bar 2, the angle measuring assembly can quickly measure the included angle of the drive shaft.

[0028] Specifically, the drive shaft connection assembly includes a drive shaft retaining ring 3, a drive shaft primary adjusting retaining ring 4, a drive shaft secondary adjusting retaining ring 5, a drive shaft tertiary adjusting retaining ring 6, and a drive shaft quaternary adjusting retaining ring 7. Two first guide rails 8 are fixed on the outer wall of the drive shaft retaining ring 3, and both first guide rails 8 extend circumferentially along the drive shaft retaining ring 3.

[0029] The drive shaft retaining ring 3, the first-stage drive shaft adjusting retaining ring 4, the second-stage drive shaft adjusting retaining ring 5, the third-stage drive shaft adjusting retaining ring 6, and the fourth-stage drive shaft adjusting retaining ring 7 all have openings, the size of which is equal to their respective radii.

[0030] Since the diameter of the drive shaft is directly related to the engine displacement, torque, and vehicle model positioning, there are many possible drive shaft diameters. Therefore, this embodiment provides a four-stage adjusting ring. The outer diameter of the first-stage adjusting ring 4 is equal to the inner diameter of the drive shaft ring 3; the inner diameter of the first-stage adjusting ring 4 is equal to the outer diameter of the second-stage adjusting ring 5; the inner diameter of the second-stage adjusting ring 5 is equal to the outer diameter of the third-stage adjusting ring 6; and the inner diameter of the third-stage adjusting ring 6 is equal to the outer diameter of the fourth-stage adjusting ring 7. By using the drive shaft ring 3 alone or in combination with the first-stage, second-stage, third-stage, and fourth-stage adjusting rings, it can accommodate five different drive shaft sizes.

[0031] In this embodiment, the specific inner and outer diameters of the drive shaft retaining ring 3, the first-stage adjustment retaining ring 4, the second-stage adjustment retaining ring 5, the third-stage adjustment retaining ring 6, and the fourth-stage adjustment retaining ring 7 are not limited. Those skilled in the art can set their inner and outer diameters according to their needs.

[0032] Furthermore, each of the two first guide rails 8 has a first mounting hole 9. One end of the linear slide rod 1 is located between the two first guide rails 8, and a first rotating shaft 10 is installed at this end. The two ends of the first rotating shaft 10 pass through the two first mounting holes 9 respectively, and a first rubber ring 11 is fixedly installed at both ends of the first rotating shaft 10.

[0033] The linear slide rod 1 is connected to two first guide rails 8 via a first rotating shaft 10, allowing one end of the linear slide rod 1 to move along the first guide rails 8. It should be noted that no matter where the linear slide rod 1 moves, the axis of the driving shaft retaining ring 3 is always perpendicular to it. The movable angle β of the linear slide rod 1 is ≥180°.

[0034] Furthermore, the angle measuring assembly includes a protractor 12 and a connecting plate 13. The connecting plate 13 is fixed on the protractor 12. Connecting posts 14 are fixed on both sides of the protractor 12. Two connecting frames 15 are fixed on the connecting plate 13. The linear slide rod 1 passes through the two connecting frames 15 and slides with the connecting plate 13.

[0035] By fixing connecting posts 14 on both sides of the protractor 12, the measurement reading requirements under different operating conditions of the left and right drive shafts can be met. The connecting posts 14 are located at the center of the protractor 12.

[0036] Furthermore, the ball cage connection assembly includes a ball cage retaining ring 16, a primary ball cage adjusting retaining ring (not shown in the figure), and a secondary ball cage adjusting retaining ring (not shown in the figure). The outer diameter of the primary ball cage adjusting retaining ring is equal to the inner diameter of the ball cage retaining ring 16, and the outer diameter of the secondary ball cage adjusting retaining ring is equal to the inner diameter of the primary ball cage adjusting retaining ring.

[0037] The outer diameter of the primary adjusting shackle of the ball cage is equal to the inner diameter of the ball cage shackle 16, and the inner diameter of the primary adjusting shackle of the ball cage is equal to the outer diameter of the secondary adjusting shackle of the ball cage. Similarly, this embodiment does not limit the specific inner and outer diameters of the ball cage shackle 16, the primary adjusting shackle of the ball cage, and the secondary adjusting shackle of the ball cage; the specific dimensions can be set according to actual needs. This embodiment aims to protect this combination method of use.

[0038] Since the ball cage 25 has a limited number of specifications, only the primary and secondary adjustment rings need to be installed to meet the usage requirements.

[0039] Two second guide rails 19 are fixed on the outer wall of the ball cage retainer 16, and both second guide rails 19 extend circumferentially along the ball cage retainer 16.

[0040] Each of the two second guide rails 19 has a second mounting hole (not shown in the figure). One end of the L-shaped slide rod 2 is located between the two second guide rails 19, and a second rotating shaft 21 is mounted on this end. The two ends of the second rotating shaft 21 pass through the two second mounting holes (not shown in the figure), and a second rubber ring 22 is fixedly mounted on both ends of the second rotating shaft 21. The other end of the L-shaped slide rod 2 has an elongated hole 23, the width of which is equal to the diameter of the connecting post 14.

[0041] The working principle of this invention is as follows: When using it, the size of the drive shaft determines whether to use the first-stage adjustment ring 4, the second-stage adjustment ring 5, the third-stage adjustment ring 6, and the fourth-stage adjustment ring 7. For example, if the size of the drive shaft is equal to the inner diameter of the third-stage adjustment ring 6, the third-stage adjustment ring 6 should be first fastened onto the drive shaft, then the second-stage adjustment ring 5 should be fastened onto the third-stage adjustment ring 6, then the first-stage adjustment ring 4 should be fastened onto the second-stage adjustment ring 5, and finally the drive shaft ring 3 should be fastened onto the first-stage adjustment ring 4.

[0042] Install the ball cage retainer 16 onto the ball cage 25 in the same manner. Depending on the actual situation, it can be installed on either the inner or outer ball cage. After installation, adjust the positions of the linear slide bar 1 and the L-shaped slide bar 2 so that they are in the same plane. Insert the connecting post 14 on the protractor 12 into the elongated hole 23 on the L-shaped slide bar 2, and check the scale value aligned with the L-shaped slide bar 2 to quickly calculate the angle value of the drive shaft 24.

[0043] The above description, based on the embodiments shown in the figures, details the structure, features, and effects of the present invention. The above description is only a preferred embodiment of the present invention, but the present invention is not limited to the scope of implementation shown in the figures. Any changes made in accordance with the concept of the present invention, or equivalent embodiments modified to have equivalent changes, that do not exceed the spirit covered by the specification and figures, should be within the protection scope of the present invention.

Claims

1. A mechanism for measuring the included angle of an automotive drive shaft, characterized in that: The device includes a drive shaft connection assembly, an angle measuring assembly, and a ball cage connection assembly. A linear slide rod (1) is fixed on the drive shaft connection assembly, and the angle measuring assembly is slidably mounted on the linear slide rod (1). An L-shaped slide rod (2) is fixed on the ball cage connection assembly, and one end of the L-shaped slide rod (2) is connected to the angle measuring assembly.

2. The automobile drive shaft angle measuring mechanism according to claim 1, characterized in that: The drive shaft connection assembly includes a drive shaft retaining ring (3), a drive shaft first-level adjusting retaining ring (4), a drive shaft second-level adjusting retaining ring (5), a drive shaft third-level adjusting retaining ring (6), and a drive shaft fourth-level adjusting retaining ring (7). Two first guide rails (8) are fixed on the outer wall of the drive shaft retaining ring (3), and both first guide rails (8) extend circumferentially along the drive shaft retaining ring (3).

3. The automobile drive shaft angle measuring mechanism according to claim 2, characterized in that: Each of the two first guide rails (8) has a first mounting hole (9). One end of the linear slide bar (1) is located between the two first guide rails (8), and a first rotating shaft (10) is installed at that end. The two ends of the first rotating shaft (10) pass through the two first mounting holes (9), and a first rubber ring (11) is fixedly installed at both ends of the first rotating shaft (10).

4. The automobile drive shaft angle measuring mechanism according to claim 3, characterized in that: The angle measuring assembly includes a protractor (12) and a connecting plate (13). The connecting plate (13) is fixed on the protractor (12). Connecting posts (14) are fixed on both sides of the protractor (12). Two connecting frames (15) are fixed on the connecting plate (13). The linear slide rod (1) passes through the two connecting frames (15). The linear slide rod (1) slides in cooperation with the connecting plate (13).

5. The automobile drive shaft angle measuring mechanism according to claim 4, characterized in that: The ball cage connection assembly includes a ball cage retaining ring (16), a ball cage primary adjustment retaining ring, and a ball cage secondary adjustment retaining ring. The outer diameter of the ball cage primary adjustment retaining ring is equal to the inner diameter of the ball cage retaining ring (16), and the outer diameter of the ball cage secondary adjustment retaining ring is equal to the inner diameter of the ball cage primary adjustment retaining ring.

6. The automobile drive shaft angle measuring mechanism according to claim 5, characterized in that: Two second guide rails (19) are fixed on the outer wall of the ball cage retainer (16), and both second guide rails (19) extend circumferentially along the ball cage retainer (16).

7. The automobile drive shaft angle measuring mechanism according to claim 6, characterized in that: Each of the two second guide rails (19) has a second mounting hole. One end of the L-shaped slide rod (2) is located between the two second guide rails (19), and a second rotating shaft (21) is installed at that end. The two ends of the second rotating shaft (21) pass through the two second mounting holes respectively, and a second rubber ring (22) is fixedly installed at both ends of the second rotating shaft (21).

8. The automobile drive shaft angle measuring mechanism according to claim 7, characterized in that: The other end of the L-shaped slide bar (2) is provided with an elongated hole (23), the width of which is equal to the diameter of the connecting post (14).

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