A driving shaft assembly stability detection device

Abstract

The present invention relates to the technical field of drive shaft detection, and discloses a stability detection device for a drive shaft assembly. The present invention includes: a base frame, on which a material guiding groove for guiding the drive shaft assembly and a rotating wheel for transferring the drive shaft assembly are provided. A plurality of shaft frames for defining the drive shaft assembly and capable of lifting and resetting are provided on the rotating wheel. A movable driving mechanism is provided on the rotating wheel, and a vibration detection mechanism is provided on the driving mechanism; the driving mechanism includes two moving frames, sleeve frames are provided on both of the two moving frames, and transmission cylinders matching the spline ends of the drive shaft assembly are rotatably provided on both of the two sleeve frames. The present invention can transfer the drive shaft assembly, enabling automatic deployment and unloading of the drive shaft assembly during detection, making the stability detection of the drive shaft assembly more automated, and making the detection device more suitable for large-scale detection.

Description

Technical Field

[0001] The present invention relates to the technical field of drive shaft detection, and in particular to a stability detection device for a drive shaft assembly. Background Art

[0002] ‌The drive shaft assembly‌ is an important component in the automotive transmission system. Its main function is to transmit the power generated by the engine to the drive wheels so that the vehicle can move. The drive shaft assembly is usually installed between the differential or the final reduction gear and the wheel hub and is assembled from components such as universal joints, intermediate shafts, and dust covers. Since the quality of the drive shaft assembly is related to the safety of the vehicle, after the drive shaft assembly is assembled, a series of inspections are required to ensure the quality of the drive shaft assembly. Among them, there is a stability inspection of the drive shaft assembly.

[0003] Existing devices generally fix the drive shaft assembly and drive it through a driving device to detect whether the drive shaft assembly is stable during rotation. For example, the related technology (CN220084335U) discloses a vibration detection device for a drive shaft assembly, including a machine base, a driving mechanism, and a loading mechanism. The driving mechanism includes a driving motor and a driving box, and a driving main shaft is provided on the driving box. The loading mechanism includes a loading motor and a loading box, and a loading main shaft is provided on the loading box; it also includes a driving connection component for connecting the mobile end of the drive shaft assembly to the driving main shaft and a loading connection component for connecting the fixed end of the drive shaft assembly to the loading main shaft. A vibration detection component for detecting the vibration of the drive shaft assembly is installed on the driving connection component. By simulating the working conditions on the vehicle through the driving mechanism and the loading mechanism, the off-vehicle detection of the vibration performance of the drive shaft assembly in the manufacturing stage or the later maintenance stage is solved, the detection accuracy of the vibration performance of the drive shaft assembly is improved, and the drive shaft assembly with excessive vibration performance is prevented from being installed on the vehicle.

[0004] However, the existing detection devices cannot achieve automatic loading and unloading. When detecting the stability of the drive shaft assembly, manual assistance is required for deployment and picking, which is not suitable for the detection of a large number of drive shaft assemblies. Therefore, it is necessary to propose a drive shaft assembly implementation device that can achieve automatic loading and unloading and detection operations. Summary of the Invention

[0005] To solve the above technical problems, the present invention provides a stability detection device for a drive shaft assembly.

[0006] The present invention is implemented by the following technical solutions: a base frame, on which a material guiding groove for guiding the drive shaft assembly and a rotating wheel that is rotatable and used for transferring the drive shaft assembly are provided. A plurality of shaft frames for defining the drive shaft assembly and capable of lifting and resetting are provided on the rotating wheel. A movable driving mechanism is provided on the rotating wheel, and a vibration detection mechanism is provided on the driving mechanism;

[0007] The driving mechanism includes two moving frames, each of which is provided with a sleeve frame, each of which is rotatably provided with a transmission cylinder matching the spline end of the drive shaft assembly, and the corresponding sleeve frame is provided with a third motor for driving the transmission cylinder to rotate, and a triangular stop block that can squeeze the shaft frame to descend is provided on the side where the two moving frames are close to each other.

[0008] As a further improvement of the above scheme, a bidirectional screw is rotatably installed on the rotating wheel, and a second motor for driving the bidirectional screw to rotate is arranged on the base frame. The two ends of the bidirectional screw respectively pass through the two moving frames and are threadedly connected with the two moving frames, thereby driving the two moving frames to move closer to or away from each other.

[0009] As a further improvement of the above solution, two pairs of sliding rods are arranged on the base frame, and the two pairs of sliding rods respectively penetrate the corresponding moving frames and are slidably connected thereto, thereby ensuring that the two moving frames can move smoothly and stably driven by the bidirectional screw rod.

[0010] As a further improvement of the above scheme, multiple pairs of T-shaped rods are arranged on the rotating wheel, and the multiple pairs of T-shaped rods respectively penetrate the corresponding shaft frames and are slidably connected thereto. The multiple pairs of T-shaped rods are all sleeved with a first spring, and the two ends of the first spring are respectively against the rotating wheel and the shaft frame.

[0011] As a further improvement of the above scheme, the sleeve frame is telescopically and slidably connected to the mobile frame, and a turntable connected to the third motor is rotatably installed on the corresponding mobile frame. A pull rod is rotatably installed on the turntable, and one end of the pull rod is hinged to the corresponding sleeve frame, so that the drive shaft assembly can adjust the angle by lifting one end when rotating, so that the stability detection is more comprehensive.

[0012] As a further improvement of the above scheme, a retractable driving rod is rotatably arranged on the corresponding movable frame, and the driving rod consists of a sleeve and a telescopic rod. The sleeve of the driving rod is connected to the output shaft of the third motor and is transmitted to the turntable through a bevel gear. The telescopic rod of the driving rod is rotatably connected to the corresponding sleeve and is transmitted to the corresponding transmission cylinder through a bevel gear, so that the third motor can not only drive the driving shaft assembly to rotate, but also realize the angle change when the driving shaft assembly rotates.

[0013] As a further improvement of the above scheme, the vibration detection mechanism includes a sleeve, in which a push rod, a vibration sensor and a second spring are slidably installed. The second spring is slidably sleeved outside the vibration sensor and its two ends are respectively abutted against the top of the push rod and the top inner wall of the sleeve. The push rod contacts the rotating drive shaft, so as to determine the stability of the drive shaft assembly by detecting the vibration amplitude of the drive shaft assembly when it rotates.

[0014] As a further improvement of the above solution, the tops of the two sleeve frames are hinged with the same telescopic frame, and the sleeve penetrates through the telescopic frame and is fixedly connected to the telescopic frame, so that the vibration detection mechanism can adapt to the lifting of the transmission cylinder and the angle change of the drive shaft assembly.

[0015] As a further improvement of the above solution, a spherical roller is arranged at the bottom of the abutting rod, which can not only prevent the abutting rod from wearing the rotating drive shaft assembly, but also the spherical shape of the roller enables it to better adapt to the angle change when the drive shaft assembly rotates.

[0016] As a further improvement of the above solution, a first motor is arranged on the base frame, and circular gears are arranged on the output shaft of the first motor and the shaft rod of the rotating wheel, and the two circular gears are meshed with each other.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] By arranging the rotating wheel and the material guiding groove, and arranging a driving mechanism on the rotating wheel, a new driving shaft assembly stability detection device is formed. Compared with the traditional driving shaft assembly stability detection device, the driving shaft assembly can be automatically deployed and unloaded, making the stability detection of the driving shaft assembly more automated, eliminating the tediousness of manual deployment, and being more suitable for the stability detection of a large number of driving shaft assemblies;

[0019] By arranging a liftable and resetable shaft frame on the rotating wheel, and arranging a triangular abutting block on the driving mechanism that can press the shaft frame, when the driving mechanism limits the driving shaft assembly, the shaft frame can be separated from the driving shaft assembly, so that the shaft frame can be used to limit and drive the driving shaft assembly to transfer, and at the same time, it will not affect the stability detection of the driving shaft assembly;

[0020] By telescopically connecting the sleeve frame with the moving frame, and arranging a turntable and a pull rod on the moving frame, when the driving mechanism drives the driving shaft assembly to rotate, the driving shaft assembly can also be synchronously angularly changed (the angle change between the intermediate shaft and the universal joint). Compared with single rotation detection, this detection adds angular change and can improve the detection effect of the driving shaft assembly;

[0021] By arranging a telescopic frame on the vibration detection mechanism and hinging the telescopic frame with the two sleeve frames, the vibration detection mechanism can better adapt to the angle change of the driving shaft assembly and the lifting of the driving mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is an overall left-view display diagram of the driving shaft assembly stability detection device of the present invention;

[0023] Figure 2 This is the overall right-view display diagram of the stability detection device for the drive shaft assembly of the present invention;

[0024] Figure 3 This is the assembly display diagram of the base frame and the rotating wheel;

[0025] Figure 4 This is the disassembled display diagram of the rotating wheel and the bidirectional lead screw;

[0026] Figure 5 This is the disassembled display diagram of the rotating wheel and the shaft frame;

[0027] Figure 6 This is the display diagram of the drive mechanism and the vibration detection mechanism;

[0028] Figure 7 This is the disassembled display diagram of the drive mechanism;

[0029] Figure 8 This is the partial sectional view display diagram of the vibration detection mechanism.

[0030] Main symbol explanations:

[0031] 1. Base frame; 2. Feeding chute; 3. Rotating wheel; 4. Shaft frame; 5. T-shaped rod; 6. First spring; 7. First motor; 8. Bidirectional lead screw; 9. Second motor; 10. Moving frame; 11. Sleeve frame; 12. Transmission cylinder; 13. Third motor; 14. Turntable; 15. Pull rod; 16. Telescopic frame; 17. Sleeve; 18. Bracing rod; 19. Second spring; 20. Vibration sensor; 21. Triangular bracing block. Specific embodiments

[0032] Next, in combination with the accompanying drawings and specific embodiments, the present invention will be further described.

[0033] Please refer to Figures 1 to 8 , the stability detection device for the drive shaft assembly includes: a base frame 1, a feeding chute 2 for guiding the drive shaft assembly is provided on the base frame 1, and a rotating wheel 3 that is rotatable and used for transferring the drive shaft assembly is provided. A first motor 7 is also provided on the base frame 1. Circular gears are provided on the output shaft of the first motor 7 and the shaft rod of the rotating wheel 3, and the two circular gears are meshed with each other. A plurality of shaft frames 4 for limiting the drive shaft assembly and capable of lifting and resetting are provided on the rotating wheel 3. A plurality of pairs of T-shaped rods 5 are provided on the rotating wheel 3. The plurality of pairs of T-shaped rods 5 respectively penetrate through the corresponding shaft frames 4 and are slidably connected to them. A first spring 6 is sleeved on each of the plurality of pairs of T-shaped rods 5, and the two ends of the first spring 6 respectively abut against the rotating wheel 3 and the shaft frame 4. A movable drive mechanism is provided on the rotating wheel 3;

[0034] The driving mechanism includes two moving frames 10. Sleeve frames 11 are slidably mounted on both of the two moving frames 10. Transmission cylinders 12 that match the spline end of the drive shaft assembly are rotatably arranged on both of the two sleeve frames 11. Transmission teeth are arranged on the inner holes of the transmission cylinders 12, so as to be engaged with the spline end on the universal joint of the drive shaft assembly. A third motor 13 is arranged on the corresponding sleeve frame 11. A turntable 14 and a telescopic drive rod are rotatably mounted on the corresponding moving frame 10. A pull rod 15 is rotatably mounted on the turntable 14. One end of the pull rod 15 is hinged to the corresponding sleeve frame 11. The drive rod is composed of a sleeve and a telescopic rod. The sleeve of the drive rod is connected to the output shaft of the third motor 13 and is transmitted with the turntable 14 through bevel gears. The telescopic rod of the drive rod is rotatably connected to the corresponding sleeve frame 11 and is transmitted with the corresponding transmission cylinder 12 through bevel gears. In this way, the third motor 13 can not only drive the drive shaft assembly to rotate, but also realize the angle transformation when the drive shaft assembly rotates. In this way, the drive shaft assembly can adjust the angle by the lifting of one end when rotating, so that the stability detection is more comprehensive. Triangular abutting blocks 21 that can squeeze the shaft frame 4 to descend are arranged on one side of the two moving frames 10 close to each other.

[0035] Through the above technical solutions, a new driving shaft assembly stability detection device is formed. Compared with the traditional driving shaft assembly stability detection device, the driving shaft assembly can be automatically deployed and unloaded, making the stability detection of the driving shaft assembly more automated, eliminating the tediousness of manual deployment, and being more suitable for the stability detection of a large number of driving shaft assemblies. At the same time, by arranging a shaft frame 4 that can be lifted and reset on the runner 3 and arranging triangular abutting blocks 21 that can press the shaft frame 4 on the driving mechanism, when the driving mechanism limits the driving shaft assembly, the shaft frame 4 can be separated from the driving shaft assembly by the way, so that the shaft frame 4 can be used to limit and drive the transfer of the driving shaft assembly, and at the same time, it will not affect the stability detection of the driving shaft assembly. Moreover, when driving the driving shaft assembly to rotate, the angle transformation of the driving shaft assembly (the angle transformation between the intermediate shaft and the universal joint) can be realized synchronously. Compared with single rotation detection, this detection adds angle transformation, which can improve the detection effect of the driving shaft assembly.

[0036] A rotating hole is arranged on the shaft rod of the runner 3. A bidirectional lead screw 8 is rotatably mounted in the rotating hole. A second motor 9 for driving the bidirectional lead screw 8 to rotate is arranged on the base frame 1. The output shaft of the second motor 9 is connected to one end of the bidirectional lead screw 8. Both ends of the bidirectional lead screw 8 respectively penetrate through the two moving frames 10 and are threadedly connected with the two moving frames 10, so as to drive the two moving frames 10 to approach or move away from each other. Two pairs of sliding rods are arranged on the base frame 1. The two pairs of sliding rods respectively penetrate through the corresponding moving frames 10 and are slidably connected with them, so as to ensure that the two moving frames 10 can move smoothly and stably under the drive of the bidirectional lead screw 8.

[0037] The tops of two mounting frames 11 are hinged to the same telescopic frame 16. A vibration detection mechanism is fixedly installed on the telescopic frame 16. The vibration detection mechanism includes a sleeve 17. A resisting rod 18, a vibration sensor 20 and a second spring 19 are slidably installed in the sleeve 17. At the same time, an alarm can also be arranged on the base frame 1. Among them, the vibration sensor 20 can be connected to the alarm, and an alarm can be issued once the abnormal vibration amplitude of the drive shaft assembly is detected. The second spring 19 is slidably sleeved outside the vibration sensor 20 and its two ends respectively abut against the top end of the resisting rod 18 and the inner wall of the top of the sleeve 17. The resisting rod 18 contacts the rotating drive shaft, so as to determine the stability of the drive shaft assembly by detecting the vibration amplitude when the drive shaft assembly rotates. A spherical roller is arranged at the bottom of the resisting rod 18, which can not only avoid the resisting rod 18 from wearing the rotating drive shaft assembly, but also the spherical shape of the roller enables it to better adapt to the angle change when the drive shaft assembly rotates. The vibration detection mechanism is connected to the two mounting frames 11 through the telescopic frame 16, and can better adapt to the lifting of the transmission cylinder 12 and the angle change of the drive shaft assembly.

[0038] The implementation principle of a drive shaft assembly stability detection device in the embodiment of the present application is as follows:

[0039] This detection device can be placed at the end of the conveying device and used in cooperation with the sorting conveyor, or can be used alone;

[0040] During use, the drive shaft assemblies to be detected are sequentially placed into the feeding chute 2. Subsequently, the first motor 7 drives the runner 3 to rotate. When the shaft frame 4 on the runner 3 moves to the discharge port of the feeding chute 2, the drive shaft assembly to be detected will fall onto the shaft frame 4. Subsequently, the runner 3 drives the drive shaft assembly to the driving mechanism;

[0041] The second motor 9 drives the bidirectional lead screw 8 to rotate. The bidirectional lead screw 8 drives the two moving frames 10, the two mounting frames 11 and the two transmission cylinders 12 to approach each other until the spline shafts at both ends of the drive shaft assembly are sleeved and meshed. At the same time, when the two moving frames 10 move, they will drive the two triangular abutting blocks 21 to squeeze the current shaft frame 4. The shaft frame 4 separates from the drive shaft assembly while squeezing the first spring 6, so as to avoid affecting the stability detection of the drive shaft assembly;

[0042] The third motor 13 drives the turntable 14 and the corresponding transmission cylinder 12 to rotate through the drive rod. As the turntable 14 rotates, it will drive the corresponding mounting frame 11 and the transmission cylinder 12 to reciprocally lift through the pull rod 15. And as the transmission cylinder 12 rotates, it will also drive the drive shaft assembly to rotate, so that the angle between the universal joint and the intermediate shaft of the drive shaft assembly can be continuously changed, making the detection more diverse;

[0043] When the drive shaft assembly rotates at a changing angle, the abutting rod 18 and the spherical roller on the vibration detection mechanism will abut against the intermediate shaft of the drive shaft assembly under the push of the second spring 19, and thereby detect the vibration amplitude during rotation, and thereby determine the stability of the entire drive shaft assembly.

[0044] The above embodiments are only the preferred embodiments of the present invention, and cannot be used to limit the scope of protection of the present invention. Any non-substantive changes and substitutions made by those skilled in the art on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A drive shaft assembly stability detection device, characterized in that: include: A base frame (1), the base frame (1) being provided with a material guide trough (2) for guiding the drive shaft assembly and a rotatable rotating wheel (3) for transferring the drive shaft assembly, the rotating wheel (3) being provided with a plurality of shaft frames (4) for limiting the drive shaft assembly and capable of lifting and resetting, the rotating wheel (3) being provided with a movable driving mechanism, and the driving mechanism being provided with a vibration detection mechanism; The driving mechanism comprises two moving frames (10), each of which is provided with a sleeve frame (11), the sleeve frame (11) being telescopically and slidably connected to the moving frames (10), each of which is rotatably provided with a transmission cylinder (12) matching the spline end of the drive shaft assembly, and each of which is provided with a third motor (13) for driving the transmission cylinder (12) to rotate, and each of which is provided with a triangular stop block (21) capable of pressing the shaft frame (4) downward on a side where the two moving frames (10) are close to each other.

2. The drive shaft assembly stability detection device according to claim 1, characterized in that: A bidirectional screw rod (8) is rotatably mounted on the rotating wheel (3), and a second motor (9) for driving the bidirectional screw rod (8) to rotate is arranged on the base frame (1). Both ends of the bidirectional screw rod (8) respectively penetrate through two moving frames (10) and are threadedly connected to the two moving frames (10), thereby driving the two moving frames (10) to move closer to or farther from each other.

3. The drive shaft assembly stability detection device according to claim 2, characterized in that: The base frame (1) is provided with two pairs of sliding rods, which respectively penetrate the corresponding moving frames (10) and are slidably connected thereto, thereby ensuring that the two moving frames (10) can move smoothly and stably under the drive of the bidirectional screw rod (8).

4. The drive shaft assembly stability detection device according to claim 1, characterized in that: The rotating wheel (3) is provided with a plurality of pairs of T-shaped rods (5), the plurality of pairs of T-shaped rods (5) respectively penetrate corresponding shaft frames (4) and are slidably connected thereto, the plurality of pairs of T-shaped rods (5) are sleeved with a first spring (6), and the two ends of the first spring (6) respectively abut against the rotating wheel (3) and the shaft frame (4).

5. The drive shaft assembly stability detection device according to claim 1, characterized in that: A turntable (14) which is rotatably mounted on the corresponding moving frame (10) and is transmission-connected to the third motor (13), and a pull rod (15) is rotatably mounted on the turntable (14), and one end of the pull rod (15) is hinged to the corresponding sleeve frame (11), so that the driving shaft assembly can adjust its angle by lifting and lowering one end when rotating, thereby making the stability detection more comprehensive.

6. The drive shaft assembly stability detection device according to claim 5, characterized in that: A retractable driving rod is rotatably arranged on the corresponding moving frame (10), the driving rod consisting of a sleeve and a telescopic rod. The sleeve of the driving rod is connected to the output shaft of the third motor (13) and is transmitted to the rotating disk (14) through a bevel gear. The telescopic rod of the driving rod is rotatably connected to the corresponding sleeve frame (11) and is transmitted to the corresponding transmission cylinder (12) through a bevel gear, so that the third motor (13) can not only drive the driving shaft assembly to rotate, but also realize the angle change when the driving shaft assembly rotates.

7. The drive shaft assembly stability detection device according to claim 1, characterized in that: The vibration detection mechanism comprises a sleeve (17), wherein a push rod (18), a vibration sensor (20) and a second spring (19) are slidably mounted inside the sleeve (17), wherein the second spring (19) is slidably sleeved outside the vibration sensor (20) and its two ends respectively abut against the top end of the push rod (18) and the top inner wall of the sleeve (17), and the push rod (18) contacts the rotating drive shaft, thereby determining the stability of the drive shaft assembly by detecting the vibration amplitude of the drive shaft assembly when the drive shaft assembly rotates.

8. The drive shaft assembly stability detection device according to claim 7, characterized in that: The tops of the two sleeve frames (11) are hingedly connected to a same telescopic frame (16), and the sleeve (17) passes through the telescopic frame (16) and is fixedly connected to the telescopic frame (16), so that the vibration detection mechanism can adapt to the lifting and lowering of the transmission cylinder (12) and the angle change of the drive shaft assembly.

9. The drive shaft assembly stability detection device according to claim 7, characterized in that: A spherical roller is provided at the bottom of the support rod (18), which not only prevents the support rod (18) from causing wear to the rotating drive shaft assembly, but also the spherical shape of the roller enables it to better adapt to the angle change of the drive shaft assembly during rotation.

10. The drive shaft assembly stability detection device according to claim 1, characterized in that: A first motor (7) is arranged on the base frame (1), and circular gears are arranged on the output shaft of the first motor (7) and the shaft rod of the rotating wheel (3), and the two circular gears are meshed with each other.

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