Bevel gear pair backlash measurement and meshing coloring device and method

Abstract

The invention discloses a bevel gear pair backlash measuring and meshing coloring device and method.The device comprises a base, a driving gear positioning and detecting assembly, a driven gear positioning and detecting assembly and a workpiece positioning and clamping mechanism, and the driving gear positioning and detecting assembly, the driven gear positioning and detecting assembly and the workpiece positioning and clamping mechanism are arranged on the base; the device further comprises a shaft system angle displacement assembly, and the shaft system angle displacement assembly is arranged on the base and can drive the driven gear positioning detection assembly to rotate around the workpiece positioning clamping mechanism. According to the device, by arranging the shaft system angle displacement assembly, the included angle and the axial telescopic length of the driving gear positioning detection assembly and the driven gear positioning detection assembly can be adjusted so as to adapt to the included angle between the driving gear input shaft and the driven gear output shaft and the length of the input shaft and the output shaft, the structure is simple, and adaptability is high. The method provided by the invention has the advantages of simple operation, strong adaptability, high precision, high flexibility and accurate measurement result.

Description

Technical Field

[0001] The present invention relates to the technical field of precision mechanical workpiece measurement, and particularly relates to a device and method for measuring backlash and meshing coloring of a bevel gear pair. Background Art

[0002] With the development of the aviation industry, helicopters, as an important type of aircraft, have been widely used. The intermediate and tail reducers of helicopters, as important components of the helicopter transmission system, directly affect the flight safety and stability of helicopters. The intermediate and tail reducers of helicopters contain a pair of bevel gear pairs, whose main function is to transmit motion and power between two intersecting axes. The shaft angles and shaft lengths of the bevel gear pairs in intermediate and tail reducers of different helicopter models vary. In the assembly process of traditional helicopter intermediate and tail reducers, the measurement of backlash and meshing coloring of the gear pair are mainly carried out manually. The backlash measurement is specifically carried out manually by measuring with a dial indicator. The meshing coloring is specifically carried out by one person applying a blocking torque through a nylon belt or tooling, and another person manually rotating for coloring. The traditional production mode of backlash measurement and meshing coloring has problems such as low detection accuracy, insufficient repeatability, low production efficiency, and high manual labor intensity.

[0003] Chinese Patent Document CN109682595A discloses a central gear pair meshing coloring device. In this detection device, the driving gear installation component installs the driving gear, and the driven gear installation component installs the driven gear. The driven gear and the driving gear mesh to form a central gear pair. Although this detection device can achieve the coloring inspection of the bevel gear pair, there are numerous reducer models and specifications, and the angles between the driving gear and the driven gear also vary. Since each installation component of this detection device is fixed, it is not suitable for the detection requirements of multiple models and specifications of current reducers, and cannot meet the movement stroke and functions required for backlash detection and meshing coloring, such as the angle between different model gears, gear installation distance, magnitude of gear axial force, and direction of gear axial force. At the same time, this device cannot simultaneously achieve backlash detection and meshing coloring, and the detection and assembly efficiency is low. Summary of the Invention

[0004] In order to solve the problems existing in the prior art during use, the present invention provides a device for measuring backlash and meshing coloring of a bevel gear pair with a simple structure and strong adaptability, and also provides a method for measuring backlash and meshing coloring of a bevel gear pair.

[0005] To solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A bevel gear pair backlash measurement and meshing coloring device, comprising a base and an active gear positioning and detecting assembly, a driven gear positioning and detecting assembly and a workpiece positioning and clamping mechanism located on the base, and further comprising a shafting angular displacement assembly. The shafting angular displacement assembly is arranged on the base and can drive the driven gear positioning and detecting assembly to rotate around the workpiece positioning and clamping mechanism.

[0007] As a further improvement of the above technical solution:

[0008] The shafting angular displacement assembly includes an arc guide rail and an angular displacement driving member. The arc guide rail is arranged on the base and arranged around the workpiece positioning and clamping mechanism. The driven gear positioning and detecting assembly is arranged on the arc guide rail, and the angular displacement driving member is used to drive the driven gear positioning and detecting assembly to move along the arc guide rail.

[0009] The active gear positioning and detecting assembly and the driven gear positioning and detecting assembly respectively include a positioning and detecting member. The positioning and detecting member includes a floating plate, a clamping member for clamping the gear and a detector for measuring the rotation angle of the gear. The clamping member and the detector are arranged on the floating plate, and the floating plate is arranged on the base in a liftable manner.

[0010] The positioning and detecting member further includes a balance cylinder, a transition plate and a bottom plate. The balance cylinder is arranged on the transition plate, the floating plate is arranged on the transition plate in a liftable manner through the balance cylinder, the transition plate is slidably arranged on the bottom plate, the bottom plate of the active gear positioning and detecting assembly is arranged on the base, and the bottom plate of the driven gear positioning and detecting assembly is slidably arranged on the arc guide rail.

[0011] A base linear slide rail is arranged on the base, and the bottom plate of the active gear positioning and detecting assembly is slidably arranged on the base linear slide rail.

[0012] The positioning and detecting member further includes a rotation driving member, and the rotation driving member is used to drive the clamping member to rotate.

[0013] The positioning and detecting member further includes a moving driving member. A bottom plate linear slide rail is arranged on the bottom plate, and the moving driving member drives the transition plate to slide along the bottom plate linear slide rail and applies an axial force to the gear.

[0014] The detector is an angle encoder.

[0015] The clamping member is a three-jaw chuck.

[0016] A bevel gear pair backlash measurement and meshing coloring method, which is carried out by using the above bevel gear pair backlash measurement and meshing coloring device, and includes the following steps:

[0017] A1. Apply a coloring agent to the tooth surface of the gear of the workpiece, and the workpiece positioning and clamping mechanism positions and clamps the workpiece;

[0018] A2, the shafting angular displacement assembly drives the driven gear positioning and detecting assembly to rotate along the workpiece positioning and clamping mechanism to a specified position;

[0019] A3, the driving gear positioning and detecting assembly and the driven gear positioning and detecting assembly respectively clamp the driving gear and the driven gear, and respectively apply axial forces to the driving gear and the driven gear;

[0020] A4, the driving gear positioning and detecting assembly drives the driving gear to rotate, the driven gear positioning and detecting assembly applies a blocking force to the driven gear, and at the same time, the driving gear positioning and detecting assembly and the driven gear positioning and detecting assembly respectively measure the rotation angles of the two gears, calculate the gear clearance, and complete the tooth clearance measurement and meshing coloring of the bevel gear pair.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] The tooth clearance measurement and meshing coloring device for the bevel gear pair of the present invention can adjust the included angle and axial telescopic length between the driving gear positioning and detecting assembly and the driven gear positioning and detecting assembly by setting the shafting angular displacement assembly to adapt to the included angle between the input shaft of the driving gear and the output shaft of the driven gear and the lengths of the input shaft and the output shaft, and can meet the automatic tooth clearance measurement and meshing coloring of the bevel gear pairs of workpieces of different models and specifications, and can meet the movement strokes and functions required for tooth clearance detection and meshing coloring such as the included angle between gears, the gear mounting distance, the magnitude of the gear axial force, and the direction requirement of the gear axial force. The structure is simple and the adaptability is strong.

[0023] The tooth clearance measurement and meshing coloring method for the bevel gear pair of the present invention also has the advantages of the tooth clearance measurement and meshing coloring device for the bevel gear pair.

[0024] On the other hand, the tooth clearance measurement and meshing coloring method for the bevel gear pair of the present invention drives the driven gear positioning and detecting assembly to move along the arc guide rail to adapt to different included angles between the input shaft of the driving gear and the output shaft of the driven gear, can meet the tooth clearance measurement and meshing coloring of workpieces of different models and specifications, is simple to operate and has strong adaptability; by setting the two balance cylinders to be ventilated, it can prevent the clamping parts from falling due to the gravity of each component, so that the two clamping parts deviate from the gears, and improve the accuracy and flexibility of the device; by applying an axial force, when detecting, an axial force is applied to the driving gear and the driven gear to simulate the axial force stress state under the real operating condition, and the measurement result is more accurate; by applying a blocking torque, the stress state of the gear during the machining stage can be simulated, and at the same time, it is ensured that the gear pair meshes with each other during positive and reverse rotations, and the measurement result is more accurate. By integrating the two operation steps of tooth clearance detection and meshing coloring, they can be carried out simultaneously, improving the efficiency of the assembly detection process. Brief Description of the Drawings

[0025] Figure 1It is the top view of the backlash measurement and meshing coloring device for bevel gear pairs of the present invention.

[0026] Figure 2 It is the side view of the backlash measurement and meshing coloring device for bevel gear pairs of the present invention.

[0027] Figure 3 It is the cross-sectional view of the driving gear positioning and detecting component in the backlash measurement and meshing coloring device for bevel gear pairs of the present invention.

[0028] Figure 4 It is the cross-sectional view of the driven gear positioning and detecting component in the backlash measurement and meshing coloring device for bevel gear pairs of the present invention.

[0029] Legend Explanation:

[0030] 1. Base; 11. Base linear slide rail; 2. Driving gear positioning and detecting component; 3. Driven gear positioning and detecting component; 4. Workpiece positioning and clamping mechanism; 5. Shaft system angular displacement component; 51. Arc guide rail; 52. Angular displacement driving part; 6. Positioning and detecting part; 61. Floating plate; 62. Clamping part; 63. Detector; 64. Balancing cylinder; 65. Transition plate; 66. Base plate; 661. Base plate linear slide rail; 67. Rotating driving part; 68. Moving driving part. Detailed Implementation Modes

[0031] The following will further elaborate on the present invention in detail with reference to the specification drawings and specific embodiments.

[0032] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0033] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more, unless otherwise specifically defined.

[0034] In the present invention, unless otherwise clearly defined and limited, terms such as "assembly", "connected", "connected to", "fixed", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; 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 components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] As Figures 1 to 4 shown, the backlash measurement and meshing coloring device for bevel gear pairs of this embodiment includes a base 1, an active gear positioning and detecting assembly 2, a driven gear positioning and detecting assembly 3, and a workpiece positioning and clamping mechanism 4 located on the base 1. It also includes a shafting angular displacement assembly 5. The shafting angular displacement assembly 5 is arranged on the base 1 and can drive the driven gear positioning and detecting assembly 3 to rotate around the workpiece positioning and clamping mechanism 4.

[0036] During backlash measurement and meshing coloring, the workpiece to be detected (such as the intermediate reducer or tail reducer of a helicopter) is placed on the workpiece positioning and clamping mechanism 4. The workpiece positioning and clamping mechanism 4 positions and clamps the workpiece. At this time, the active gear positioning and detecting assembly 2 is coaxial with the active gear of the workpiece. The active gear positioning and detecting assembly 2 positions and clamps the active gear of the workpiece. The shafting angular displacement assembly 5 drives the driven gear positioning and detecting assembly 3 to rotate around the workpiece positioning and clamping mechanism 4, so that the driven gear positioning and detecting assembly 3 is coaxial with the driven gear of the workpiece. The driven gear positioning and detecting assembly 3 positions and clamps the driven gear of the workpiece. Then, the active gear positioning and detecting assembly 2 and the driven gear positioning and detecting assembly 3 perform backlash measurement and meshing coloring on the meshing active gear and driven gear.

[0037] In this embodiment, the active gear positioning and detecting assembly 2 is used to clamp the input shaft of the active gear, and the driven gear positioning and detecting assembly 3 is used to clamp the output shaft of the driven gear.

[0038] The backlash measurement and meshing coloring device for bevel gear pairs of this embodiment can adjust the included angle and axial telescopic length between the active gear positioning and detecting assembly 2 and the driven gear positioning and detecting assembly 3 by setting the shafting angular displacement assembly 5 to adapt to the included angle between the input shaft of the active gear and the output shaft of the driven gear and the lengths of the input shaft and the output shaft. It can meet the automatic backlash measurement and meshing coloring of bevel gear pairs of workpieces of different models and specifications, and can meet the movement strokes and functions required for backlash detection and meshing coloring such as the included angle between gears, gear installation distance, magnitude of gear axial force, and direction of gear axial force. The structure is simple and the adaptability is strong.

[0039] Furthermore, in this embodiment, the shafting angular displacement assembly 5 includes an arc guide rail 51 and an angular displacement driving member 52. The arc guide rail 51 is arranged on the base 1 and is disposed around the workpiece positioning and clamping mechanism 4. The driven gear positioning and detecting assembly 3 is arranged on the arc guide rail 51, and the angular displacement driving member 52 is used to drive the driven gear positioning and detecting assembly 3 to move along the arc guide rail 51. By providing the arc guide rail 51 arranged around the workpiece positioning and clamping mechanism 4, workpieces with different included angles between the driving gear and the driven gear can be adapted, and the driven gear positioning and detecting assembly 3 can always be coaxial with the driven gear.

[0040] Preferably, in this embodiment, the arc guide rail 51 can satisfy the backlash measurement and meshing coloring of workpieces with the included angle between the input shaft of the driving gear and the output shaft of the driven gear in the range of 80° to 145°.

[0041] Furthermore, in this embodiment, the driving gear positioning and detecting assembly 2 and the driven gear positioning and detecting assembly 3 respectively include a positioning and detecting member 6. The positioning and detecting member 6 includes a floating plate 61, a clamping member 62 for clamping the gear, and a detector 63 for measuring the rotation angle of the driving gear. The clamping member 62 and the detector 63 are arranged on the floating plate 61, and the floating plate 61 is arranged on the base 1 in a liftable manner; the clamping member 62 clamps the gear coaxially. Rotating the clamping member 62 of the driving gear positioning and detecting assembly 2 drives the input shaft of the driving gear, the driving gear, the output shaft of the driven gear, the driven gear, and the clamping member 62 of the driven gear positioning and detecting assembly 3 to rotate in sequence. The detectors 63 of the driving gear positioning and detecting assembly 2 and the driven gear positioning and detecting assembly 3 respectively measure the rotation angles of the driving gear and the driven gear to complete the backlash detection. At the same time, by providing the floating plate 61, the offset distances between the input shaft of the driving gear and the output shaft of the driven gear in different workpieces can be adapted. By lifting the floating plate 61 to adapt to different offset distances, the clamping member 62 of the driving gear positioning and detecting assembly 2 can always clamp coaxially with the input shaft of the driving gear, and the clamping member 62 of the driven gear positioning and detecting assembly 3 can always clamp coaxially with the output shaft of the driven gear, with strong adaptability and high precision.

[0042] Further, in this embodiment, the positioning and detecting member 6 further includes a balance cylinder 64, a transition plate 65 and a bottom plate 66. The balance cylinder 64 is arranged on the transition plate 65. The floating plate 61 is arranged on the transition plate 65 through the balance cylinder 64 in a lifting manner. The transition plate 65 is slidably arranged on the bottom plate 66. The bottom plate 66 of the driving gear positioning and detecting assembly 2 is arranged on the base 1, and the bottom plate 66 of the driven gear positioning and detecting assembly 3 is slidably arranged on the arc guide rail 51. By arranging the transition plate 65 to be slidable on the bottom plate 66, each component on the transition plate 65 of the driving gear positioning and detecting assembly 2 and the driven gear positioning and detecting assembly 3 can adapt to workpieces with different wheelbases, and the adaptability is strong. At the same time, the balance cylinder 64 is arranged to balance the weight of all components on the transition plate 65. When the clamping members 62 of the driving gear positioning and detecting assembly 2 and the driven gear positioning and detecting assembly 3 respectively clamp the gears, the two balance cylinders 64 can be adjusted adaptively, so that the clamping member 62 of the driving gear positioning and detecting assembly 2 is coaxial with the driving gear input shaft, and the clamping member 62 of the driven gear positioning and detecting assembly 3 is coaxial with the driven gear output shaft, preventing the clamping member 62 from dropping due to the gravity of each component, and causing the clamping member 62 of the driving gear positioning and detecting assembly 2 to deviate from the driving gear input shaft and the clamping member 62 of the driven gear positioning and detecting assembly 3 to deviate from the driven gear output shaft, improving the precision and flexibility of the device.

[0043] Preferably, a limiting plate is arranged on the bottom plate 66, which can prevent the transition plate 65 from slipping out of the bottom plate 66.

[0044] Preferably, a plurality of optical axis reinforcement seats are further arranged between the floating plate 61 and the transition plate 65, and the structure is more stable.

[0045] Preferably, a polyurethane pad is arranged on the transition plate 65, and the balance cylinder 64 is installed on the polyurethane pad, which is more stable and makes the detection more accurate.

[0046] Further, in this embodiment, a base linear slide rail 11 is arranged on the base 1, and the bottom plate 66 of the driving gear positioning and detecting assembly 2 is slidably arranged on the base linear slide rail 11. It is convenient to adapt to workpieces with different wheelbases, and can also avoid interference between the workpiece and the driving gear positioning and detecting assembly 2 when the workpiece positioning and clamping mechanism 4 installs the workpiece, which is convenient for installation.

[0047] Further, in this embodiment, the driving gear positioning and detecting assembly 2 further includes a rotation driving member 67, and the rotation driving member 67 is used to drive the clamping member 62 to rotate; the rotation driving member 67 of the driven gear positioning and detecting assembly 3 is used to provide a blocking torque for the clamping member 62. By applying a blocking torque, the state of the gear during the machining stage can be simulated, and the measurement result is more accurate.

[0048] Preferably, in this embodiment, the rotary drive members 67 of the driving gear positioning and detecting assembly 2 and the driven gear positioning and detecting assembly 3 are servo motors, which are arranged on the floating plate 61. During operation, the reverse torque of the rotary drive member 67 of the driven gear positioning and detecting assembly 3 is set to 20 N·m.

[0049] Furthermore, in this embodiment, the driving gear positioning and detecting assembly 2 further includes a moving drive member 68. A bottom plate linear slide rail 661 is provided on the bottom plate 66. The moving drive member 68 drives the transition plate 65 to slide along the bottom plate linear slide rail 661 and applies an axial force to the gear. By applying the axial force, during detection, an axial force is applied to the input shaft of the driving gear and the output shaft of the driven gear to simulate the axial force stress state under the real operating condition, and the measurement result is more accurate.

[0050] Preferably, the moving drive member 68 is a moving cylinder, which is arranged on the second bottom plate 66 through a cylinder support, and the structure is more stable.

[0051] Furthermore, in this embodiment, the detector 63 is an angle encoder. By using an angle encoder to directly measure the angle instead of a traditional dial indicator, the measurement errors caused by different placement positions of the dial indicator, different operating habits, and different measuring point positions of the dial indicator probe are reduced, and the result is more accurate. In this embodiment, there are two groups of angle encoders. One group of angle encoders is used to record the phase, and the other group of angle encoders is used to record the pulse difference. By rotating the gear forward and backward one full turn each, the pulse difference at the same phase can be obtained, and then the gear clearance can be calculated. Through the detection method of the angle encoder, the dynamic measurement of the backlash of the bevel gear pair can be realized.

[0052] Furthermore, in this embodiment, the clamping member 62 is a three-jaw chuck. The structure is simple and the clamping is stable.

[0053] Preferably, the bevel gear pair backlash measurement and meshing coloring device of this embodiment further includes an electric control system, which is mainly composed of control systems and safety systems such as PLC, HMI, low-voltage electric appliances, and safety light curtains, and is responsible for the motion control, logical actions, etc. of the whole device.

[0054] Preferably, the bevel gear pair backlash measurement and meshing coloring device of this embodiment further includes a data processing system, which is composed of an industrial computer, an acquisition board, data processing software, etc., and is responsible for the acquisition, analysis, judgment, data storage, upload and download, summary, report generation, etc. of the data of each sensor of the whole device.

[0055] A method for measuring the backlash and meshing coloring of a bevel gear pair according to the present invention is carried out by using the bevel gear pair backlash measurement and meshing coloring device of the present invention, and includes the following steps:

[0056] A1. Apply a coloring agent on the tooth surfaces of the gears of the workpiece. After the workpiece combination is completed, place the workpiece on the workpiece positioning and clamping mechanism. The workpiece positioning and clamping mechanism 4 positions and clamps the workpiece using the balance cylinder.

[0057] A2. The shafting angular displacement assembly 5 drives the driven gear positioning and detecting assembly 3 to rotate along the workpiece positioning and clamping mechanism 4 to a specified position. Specifically, the angular displacement driving part 52 drives the driven gear positioning and detecting assembly 3 to move along the arc guide rail 51. The two balance cylinders 64 supply air so that the clamping part 62 of the driven gear positioning and detecting assembly 3 is coaxial with the output shaft of the driven gear.

[0058] A3. The driving gear positioning and detecting assembly 2 and the driven gear positioning and detecting assembly 3 respectively clamp the end flange of the driving gear and the end flange of the driven gear, and respectively apply axial forces to the driving gear and the driven gear. Specifically, the moving driving part 68 of the driving gear positioning and detecting assembly 2 drives the transition plate 65 to slide along the linear slide rail 661 of the base plate, and makes the clamping part 62 of the driving gear positioning and detecting assembly 2 approach the driving gear. The moving driving part 68 of the driven gear positioning and detecting assembly 3 drives the transition plate 65 to slide along the linear slide rail 661 of the base plate, and makes the clamping part 62 of the driven gear positioning and detecting assembly 3 approach the driven gear. The driving gear positioning and detecting assembly 2 and the driven gear positioning and detecting assembly 3 respectively clamp the driving gear and the driven gear, and respectively apply axial forces to the driving gear and the driven gear.

[0059] A4. The driving gear positioning and detecting assembly 2 drives the driving gear to rotate, and the driven gear positioning and detecting assembly applies a blocking force to the driven gear. At the same time, the driving gear positioning and detecting assembly 2 and the driven gear positioning and detecting assembly 3 respectively measure the rotation angles of the two gears, calculate the gear clearance, and complete the tooth clearance measurement and meshing coloring of the bevel gear pair. Specifically, the driving gear positioning and detecting assembly 2 drives the driving gear to rotate forward until the rotation speed is constant. After maintaining the constant rotation speed for at least one full circle of circumferential rotation, drive the driving gear to rotate backward. The driven gear positioning and detecting assembly 3 applies a certain blocking torque to the driven gear. The detector 63 simultaneously measures the rotation angles of the driving gear and the driven gear respectively, calculates the gear clearance, and completes the tooth clearance measurement. After the driving gear rotates forward and backward one full circle each, the two clamping parts 62 are loosened, the two rotation driving parts 67 stop, and the two moving driving parts 68 respectively drive the transition plate 65 to retract. The workpiece positioning and clamping mechanism 4 is loosened, the workpiece is removed, the meshing mark is inspected and recorded, and the meshing coloring is completed. In other embodiments, a multi-point evenly distributed measurement method can also be selected. The angle encoder collects pulse data at regular intervals, performs multi-point evenly distributed measurement, and outputs curve data in real time, with high measurement accuracy (≤0.004 mm). At the same time, the device can also complete the single-point tooth clearance measurement of the gear pair and output the multi-point tooth clearance in an approximate manual measurement form with one end fixed and the other end swinging left and right.

[0060] The backlash measurement and meshing coloring method of the bevel gear pair in this embodiment can meet the automatic backlash measurement and meshing coloring of bevel gear pairs with different models and specifications by driving the driven gear positioning and detection assembly 3 to move along the arc guide rail 51 to adapt to different angles between the input shaft of the driving gear and the output shaft of the driven gear and the lengths of the input shaft and the output shaft. The operation is simple and the adaptability is strong. By setting the balance cylinder 64 to be ventilated, it can prevent the clamping member 62 from falling due to the gravity of each component, so that the clamping members 62 of the driving gear positioning and detection assembly 2 and the driven gear positioning and detection assembly 3 are respectively deviated from the input shaft of the driving gear and the output shaft of the driven gear, improving the accuracy and flexibility of the device. By applying an axial force, an axial force is applied to the driving gear and the driven gear during detection to simulate the axial force stress state under real operating conditions, and the measurement result is more accurate. By applying a blocking torque, the stress state of the gear during the machining stage can be simulated, and the measurement result is more accurate. This method has the advantages of strong adaptability, high precision, high flexibility and accurate measurement results.

[0061] The above is only a preferred embodiment of the present invention, and it does not impose any form of limitation on the present invention. Although the present invention has been disclosed above with a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make many possible changes and modifications to the technical solution of the present invention by using the above-disclosed methods and technical contents, or modify it into an equivalent embodiment with equivalent changes. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the technical solution of the present invention still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A bevel gear pair backlash measurement and meshing coloring device, comprising a base (1) and a driving gear positioning detection component (2), a driven gear positioning detection component (3) and a workpiece positioning clamping mechanism (4) located on the base (1), characterized in that: It also includes a shaft system angle displacement component (5), which is arranged on the base (1) and can drive the driven gear positioning detection component (3) to rotate around the workpiece positioning clamping mechanism (4).

2. The bevel gear pair backlash measurement and meshing coloring device according to claim 1, characterized in that: The shaft system angle displacement assembly (5) comprises an arc guide rail (51) and an angle displacement driving member (52); the arc guide rail (51) is arranged on a base (1) and is arranged around a workpiece positioning clamping mechanism (4); the driven gear positioning detection assembly (3) is arranged on the arc guide rail (51); and the angle displacement driving member (52) is used to drive the driven gear positioning detection assembly (3) to move along the arc guide rail (51).

3. The bevel gear pair backlash measurement and meshing coloring device according to claim 2, characterized in that: The active gear positioning detection assembly (2) and the driven gear positioning detection assembly (3) respectively comprise a positioning detection member (6), the positioning detection member (6) comprising a floating plate (61), a clamping member (62) for clamping a gear, and a detector (63) for measuring a rotation angle of the gear, the clamping member (62) and the detector (63) being arranged on the floating plate (61), and the floating plate (61) being movably arranged on a base (1).

4. The bevel gear pair backlash measurement and meshing coloring device according to claim 3, characterized in that: The positioning detection component (6) further comprises a balancing cylinder (64), a transition plate (65) and a bottom plate (66); the balancing cylinder (64) is arranged on the transition plate (65); the floating plate (61) is lifted and lowered on the transition plate (65) by the balancing cylinder (64); the transition plate (65) is slidably arranged on the bottom plate (66); the bottom plate (66) of the driving gear positioning detection component (2) is arranged on the base (1); and the bottom plate (66) of the driven gear positioning detection component (3) is slidably arranged on the circular arc guide rail (51).

5. The bevel gear pair backlash measurement and meshing coloring device according to claim 4, characterized in that: The base (1) is provided with a base linear slide rail (11), and the bottom plate (66) of the active gear positioning detection component (2) is slidably arranged on the base linear slide rail (11).

6. The bevel gear pair backlash measurement and meshing coloring device according to claim 4, characterized in that: The positioning detection member (6) further comprises a rotation driving member (67) for driving the clamping member (62) to rotate; the rotation driving members (67) of the driving gear positioning detection assembly (2) and the driven gear positioning detection assembly (3) drive the rotations in opposite directions.

7. The bevel gear pair backlash measurement and meshing coloring device according to claim 6, characterized in that: The positioning detection member (6) also includes a moving drive member (68). A bottom plate linear slide rail (661) is provided on the bottom plate (66). The moving drive member (68) drives the transition plate (65) to slide along the bottom plate linear slide rail (661) and applies an axial force to the gear.

8. The bevel gear pair backlash measurement and meshing coloring device according to any one of claims 3 to 7, characterized in that: The detector (63) is an angle encoder.

9. The bevel gear pair backlash measurement and meshing coloring device according to any one of claims 3 to 7, characterized in that: The clamping member (62) is a three-jaw chuck.

10. A method for measuring backlash and meshing coloring of bevel gear pairs, characterized by: The method is carried out using the bevel gear pair backlash measurement and meshing coloring device according to any one of claims 1 to 9, comprising the following steps: A1, a colorant is applied to the tooth surface of the gear of the workpiece, and the workpiece positioning and clamping mechanism (4) positions and clamps the workpiece; A2, the shaft system angle displacement assembly (5) drives the driven gear positioning detection assembly (3) to rotate along the workpiece positioning clamping mechanism (4) to a specified position; A3, the driving gear positioning detection component (2) and the driven gear positioning detection component (3) clamp the driving gear and the driven gear respectively, and apply axial force to the driving gear and the driven gear respectively; A4, the driving gear positioning detection component (2) drives the driving gear to rotate, and the driven gear positioning detection component (3) applies a blocking force to the driven gear. At the same time, the driving gear positioning detection component (2) and the driven gear positioning detection component (3) respectively measure the rotation angles of the two gears, calculate the gear clearance, and complete the bevel gear pair tooth clearance measurement and meshing coloring.

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