A spline shaft runout detection device

Abstract

This utility model discloses a spline shaft runout detection device in the field of mechanical parts inspection technology. It includes a base, with a first fixed plate and a second fixed plate symmetrically fixed on both sides of the upper part of the base. A motor is fixedly installed on the outer side of the first fixed plate. A coupling is rotatably mounted on the surface of the first fixed plate, with one end of the coupling fixedly connected to the output end of the motor and the other end fixedly mounted with a pneumatic three-jaw chuck. An electric push rod is fixedly installed on the outer side of the second fixed plate, and a connecting shaft is slidably mounted on the surface of the second fixed plate, with one end fixedly connected to the output end of the electric push rod. The device uses a displacement sensor to accurately detect minute radial displacement changes in the spline shaft, reducing human measurement errors and making the detection results more accurate and reliable, thus providing strong support for the quality control of spline shafts.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical parts testing technology, specifically relating to a spline shaft runout testing device. Background Technology

[0002] Splined shafts are a type of mechanical transmission, similar in function to parallel keys, semi-circular keys, and wedge keys, all transmitting mechanical torque. They have longitudinal keyways on their outer surface, and rotating components fitted onto the shaft also have corresponding keyways to maintain synchronous rotation. Some can also slide longitudinally along the shaft during rotation, such as gearbox shift gears. Splined shaft runout testing uses precision instruments to measure the radial or axial offset of the splined shaft's surface relative to a reference axis during rotation, assessing its geometric accuracy and fit performance. By measuring the offset of the outer peripheral wall or inner spline end face relative to the reference axis during rotation, it reflects its coaxiality, eccentricity, or phase angle deviation.

[0003] As a key component in mechanical transmission, the precision of the spline shaft directly affects the performance and lifespan of the transmission system. Runout is one of the important indicators for measuring the quality of a spline shaft; excessive runout can lead to unstable transmission, noise, and accelerated wear. Most existing methods for detecting spline shaft runout are complex to operate, inefficient, and their accuracy is greatly affected by human factors, making it difficult to meet the needs of large-scale production and high-quality testing. Therefore, we propose a spline shaft runout detection device. Utility Model Content

[0004] The purpose of this invention is to provide a spline shaft runout detection device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a spline shaft runout detection device, comprising a base, a first fixing plate and a second fixing plate symmetrically fixedly installed on the upper two sides of the base, a motor fixedly installed on the outer side of the first fixing plate, a coupling rotatably mounted on the surface of the first fixing plate, one end of the coupling being fixedly connected to the output end of the motor, and a pneumatic three-jaw chuck fixedly mounted on the other end of the coupling, an electric push rod fixedly installed on the outer side of the second fixing plate, a connecting shaft slidably mounted on the surface of the second fixing plate, one end of the connecting shaft being fixedly connected to the output end of the electric push rod, and a top seat rotatably mounted on the other end of the connecting shaft, a column being provided above one side of the base, a displacement sensor being provided on one side of the column, and a V-shaped support frame being vertically fixedly installed on the top of the base, the V-shaped support frame being positioned between the first fixing plate and the second fixing plate.

[0006] Preferably, a second sliding groove is provided on one side of the column, a second lead screw is rotatably installed on the inner side of the second sliding groove, a sliding rod is rotatably sleeved on the surface of the second lead screw, one end of the sliding rod is limited to the inner side of the second sliding groove, and a fixing frame is fixedly installed on the other end of the sliding rod, and a displacement sensor is fixedly installed on the inner side of the fixing frame.

[0007] Preferably, a base plate is fixedly installed on one side of the top of the base, and a first sliding groove is formed on the upper surface of the base plate. A first lead screw is rotatably installed on the inner side of the first sliding groove, and the surface of the first lead screw is threadedly connected to the bottom end of the column.

[0008] Preferably, a second rotary handle is rotatably mounted at the top of the column, and the bottom end of the second rotary handle is fixedly connected to the top end of the second lead screw.

[0009] Preferably, a first throttle is rotatably mounted on one side of the outer side of the base plate, and one side of the first throttle is fixedly connected to one end of the first lead screw.

[0010] Preferably, an intelligent display terminal is installed on the top side of the base, and the intelligent display terminal is electrically connected to the displacement sensor.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. The displacement sensor can accurately detect minute radial displacement changes of the spline shaft, reducing human measurement errors and making the detection results more accurate and reliable, thus providing a strong guarantee for the quality control of the spline shaft.

[0012] 2. It changes the cumbersome operation process of traditional testing methods, eliminating the need for multiple manual measurements and data recordings, greatly reducing the difficulty and labor intensity of operation, and improving the efficiency of testing work. Attached Figure Description

[0013] Figure 1 This is a front structural diagram of the present invention; Figure 2 This is a schematic diagram of the right side structure of this utility model; Figure 3 This is a schematic diagram of the left side structure of this utility model; Figure 4 This is a top view of the structure of this utility model.

[0014] In the diagram: 1. Base; 2. First fixing plate; 3. Motor; 4. Coupling; 5. Pneumatic three-jaw chuck; 6. Second fixing plate; 7. Electric push rod; 8. Connecting shaft; 9. Top seat; 10. V-shaped support frame; 11. Base plate; 12. First slide groove; 13. First lead screw; 14. First throttle; 15. Column; 16. Second slide groove; 17. Second lead screw; 18. Slide rod; 19. Fixing frame; 20. Displacement sensor; 21. Second throttle; 22. Intelligent display terminal. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1-4 This utility model provides a technical solution: a spline shaft runout detection device, including a base 1, a first fixing plate 2 and a second fixing plate 6 symmetrically fixed on the upper two sides of the base 1, a motor 3 fixedly installed on the outer side of the first fixing plate 2, a coupling 4 rotatably installed on the surface of the first fixing plate 2, one end of the coupling 4 being fixedly connected to the output end of the motor 3, and a pneumatic three-jaw chuck 5 fixedly installed on the other end of the coupling 4, an electric push rod 7 fixedly installed on the outer side of the second fixing plate 6, a connecting shaft 8 slidably installed on the surface of the second fixing plate 6, one end of the connecting shaft 8 being fixedly connected to the output end of the electric push rod 7, and a top seat 9 rotatably installed on the other end of the connecting shaft 8, a column 15 is provided on the upper side of one side of the base 1, a displacement sensor 20 is provided on one side of the column 15, and a V-shaped support frame 10 is vertically fixedly installed on the top of the base 1, the V-shaped support frame 10 being located between the first fixing plate 2 and the second fixing plate 6.

[0017] Specifically, a second slide groove 16 is provided on one side of the column 15. A second lead screw 17 is rotatably installed on the inner side of the second slide groove 16. A slide rod 18 is rotatably sleeved on the surface of the second lead screw 17. One end of the slide rod 18 is limited to the inner side of the second slide groove 16. A fixing frame 19 is fixedly installed on the other end of the slide rod 18. A displacement sensor 20 is fixedly installed on the inner side of the fixing frame 19.

[0018] Specifically, a base plate 11 is fixedly installed on one side of the top of the base 1. A first groove 12 is provided on the upper surface of the base plate 11. A first lead screw 13 is rotatably installed on the inner side of the first groove 12. The surface of the first lead screw 13 is threadedly connected to the bottom end of the column 15.

[0019] Specifically, a second throttle 21 is installed at the top of the column 15 to limit rotation, and the bottom end of the second throttle 21 is fixedly connected to the top end of the second lead screw 17.

[0020] Specifically, a first throttle 14 is rotatably mounted on one side of the outer side of the base plate 11, and one side of the first throttle 14 is fixedly connected to one end of the first lead screw 13.

[0021] Specifically, a smart display terminal 22 is installed on one side of the top of the base 1, and the smart display terminal 22 is electrically connected to the displacement sensor 20.

[0022] In this embodiment, the splined shaft is placed on two V-shaped support frames 10, with one end clamped by a pneumatic three-jaw chuck 5. An electric push rod 7 drives the connecting shaft 8 and the top seat 9 to move laterally, causing the tip of the top seat 9 to abut and fix against the other end of the splined shaft. A first throttle 14 drives the first lead screw 13 to rotate, which in turn adjusts the displacement sensor 20 according to the axial position of the splined shaft. A second throttle 21 drives the second lead screw 17 to rotate, which in turn adjusts the height of the displacement sensor 20, facilitating contact between its detection end and the surface of the splined shaft. A starter motor 3 drives the coupling 4 to rotate with the splined shaft. The displacement sensor 20 detects the radial displacement of the splined shaft in real time and transmits the data to the data processing and display mechanism. The data acquisition module of the data processing and display mechanism collects the data, the data processing module processes and analyzes the data, calculates the fluctuation degree, and finally, the intelligent display terminal 22 displays the detection results.

[0023] The center of the pneumatic three-jaw chuck 5 is at the same level as the tip center of the top seat 9.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used merely 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 a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0025] 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 spline shaft runout detection device comprising a base (1), characterized in that: A first fixing plate (2) and a second fixing plate (6) are symmetrically fixedly installed on the upper sides of the base (1). A motor (3) is fixedly installed on the outer side of the first fixing plate (2). A coupling (4) is installed on the surface of the first fixing plate (2) for limiting rotation. One end of the coupling (4) is fixedly connected to the output end of the motor (3). A pneumatic three-jaw chuck (5) is fixedly installed on the other end of the coupling (4). An electric push rod (7) is fixedly installed on the outer side of the second fixing plate (6). 6) A connecting shaft (8) is installed on the surface of the limiting sliding device. One end of the connecting shaft (8) is fixedly connected to the output end of the electric push rod (7). The other end of the connecting shaft (8) is fixedly rotated and installed with a top seat (9). A column (15) is provided above one side of the base (1). A displacement sensor (20) is provided on one side of the column (15). A V-shaped support frame (10) is vertically fixed on the top of the base (1). The V-shaped support frame (10) is located between the first fixed plate (2) and the second fixed plate (6).

2. The spline shaft runout detection device according to claim 1, characterized by: A second slide groove (16) is provided on one side of the column (15). A second lead screw (17) is rotatably installed on the inner side of the second slide groove (16). A slide rod (18) is rotatably sleeved on the surface of the second lead screw (17). One end of the slide rod (18) is limited to the inner side of the second slide groove (16). A fixing frame (19) is fixedly installed on the other end of the slide rod (18). A displacement sensor (20) is fixedly installed on the inner side of the fixing frame (19).

3. The spline shaft runout detection device according to claim 1, characterized by: A base plate (11) is fixedly installed on one side of the top of the base (1). A first groove (12) is provided on the upper surface of the base plate (11). A first lead screw (13) is rotatably installed on the inner side of the first groove (12). The surface of the first lead screw (13) is threadedly connected to the bottom end of the column (15).

4. The spline shaft runout detection device according to claim 2, characterized by: The top end of the column (15) is fitted with a second throttle (21) for rotatable positioning. The bottom end of the second throttle (21) is fixedly connected to the top end of the second lead screw (17).

5. The spline shaft runout detection device according to claim 3, characterized by: The base plate (11) has a first throttle (14) mounted on one side of its outer edge for rotatable positioning. One side of the first throttle (14) is fixedly connected to one end of the first lead screw (13).

6. The spline shaft runout detection device according to claim 1, characterized by: A smart display terminal (22) is installed on one side of the top of the base (1), and the smart display terminal (22) is electrically connected to the displacement sensor (20).

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