A gear radial runout detection device

Abstract

This utility model relates to a gear radial runout detection device, comprising: a base with a test space provided on the base; a radial runout drive mechanism movably mounted on the base, the output end of which extends into the test space and is equipped with a drive gear; a positioning shaft assembly movably mounted on the base for mounting the gear to be tested within the test space; an adjustment mechanism mounted on the base and connected to the radial runout drive mechanism for adjusting the position of the radial runout drive mechanism on the base to engage the drive gear with the gear to be tested; and a detection mechanism located on the side of the base, including a bracket and an adjustable dial indicator mounted on the bracket, the dial indicator's detection head abutting the tooth surface of the gear to be tested. The radial runout drive mechanism of this utility model drives the rotation of the drive gear, causing the gear to be tested, which is meshed with it, to rotate synchronously, simulating the actual working state of the gear to be tested and ensuring the accuracy of the radial runout detection results.

Description

Technical Field

[0001] This utility model relates to the field of gear inspection, and more specifically, to a gear radial runout detection device. Background Technology

[0002] As a core component in mechanical transmission systems, the manufacturing precision of gears directly affects the transmission efficiency, noise level, and service life of equipment. Gear radial runout is an important indicator for evaluating gear precision, reflecting the radial positional deviation of the gear tooth profile relative to its axis of rotation. It is particularly important for high-precision instruments. In related technologies, gear radial runout is measured using simple tooling and general-purpose measuring instruments. The gear to be measured is mounted on a mandrel, the gear is manually rotated, and a dial indicator or inductive probe is used to contact the tooth surface for measurement. The main drawback of this measurement method is the lack of simulation of the gear meshing state; that is, it cannot be measured under conditions close to actual working meshing. The measurement conditions differ from actual operating conditions, leading to deviations between the measurement results and actual usage. Utility Model Content

[0003] In view of this, the present invention provides a gear radial runout detection device.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A gear radial runout detection device, comprising:

[0006] A base, on which a test space is provided;

[0007] A radial jump drive mechanism is movably mounted on the base, and the output end of the radial jump drive mechanism extends into the test space and is equipped with a drive gear;

[0008] The positioning shaft assembly is movably mounted on the base and is used to install the gear to be tested within the test space;

[0009] An adjustment mechanism, disposed on the base and connected to the radial jump drive mechanism, is used to adjust the position of the radial jump drive mechanism on the base so that the driving gear meshes with the gear under test.

[0010] The testing mechanism, located on the side of the base, includes a bracket and an adjustable dial indicator mounted on the bracket, wherein the testing head of the dial indicator is used to contact the tooth surface of the gear to be tested.

[0011] In the above technical solution, the radial runout drive mechanism drives the rotation of the drive gear, causing the gear under test to rotate synchronously. Since the tooth surface of the gear under test abuts against the detection head of the dial indicator, the pointer of the dial indicator will rotate accordingly when the gear under test experiences radial runout. In this way, the actual working state of the gear under test can be simulated to ensure the accuracy of the radial runout detection result of the gear under test.

[0012] Furthermore, by adjusting the radial jump drive mechanism, the driving gear does not need to be repeatedly disassembled and reassembled when replacing the gear under test. The driving gear can be disassembled and replaced simply by moving the radial jump drive mechanism as a whole to disengage the driving gear from the gear under test. This greatly shortens the time for gear replacement and positioning, and improves the detection efficiency of the gear under test.

[0013] Optionally, in one possible implementation, the radial jump drive mechanism includes a positioning seat, a motor, and a reduction module. The positioning seat is slidably disposed on the base, and the reduction module is disposed on the positioning seat. The input end of the reduction module is connected to the output end of the motor, and the output end of the reduction module constitutes the output end of the radial jump drive mechanism and is provided with the drive gear.

[0014] In the above technical solution, the motor and the reduction module work together to form the power source of the radial jump drive mechanism, which is used to simulate the actual working state of the gear under test. The motor provides stable power output, while the reduction module can convert the high-speed, low-torque power output of the motor into low-speed, high-torque power output, so that the drive gear can drive the gear under test to rotate at a suitable speed and torque, further improving the accuracy of the test results of the gear under test.

[0015] Optionally, in one possible implementation, the base is provided with a plurality of guide shafts, and the positioning seat is slidably engaged on the guide shafts.

[0016] In the above technical solution, the guide shaft provides precise guidance for the sliding of the positioning seat on the base. The guide shaft ensures that the positioning seat always moves along a predetermined straight line during movement, avoiding deviations, wobbling, etc., making the sliding of the positioning seat more stable and smooth, and ensuring the accuracy of the radial jump drive mechanism's position adjustment.

[0017] Optionally, in one possible implementation, the positioning shaft assembly includes a first mandrel and a second mandrel that are movably inserted into the base and coaxially arranged. The end of the first mandrel that extends into the test space is provided with a positioning post, and the positioning post abuts against the end of the second mandrel that extends into the test space. The gear to be tested is mounted on the positioning post.

[0018] In the above technical solution, the first mandrel and the positioning post provide a clear installation position for the gear under test, allowing operators to quickly and accurately install the gear in place. Simultaneously, the positioning post abuts against the end of the second mandrel that extends into the test space, effectively preventing the gear under test from detaching from the positioning post during testing and ensuring the effective conduct of the test. Therefore, the first and second mandrels provide precise positioning and stable support for the gear under test, ensuring that the gear undergoes radial runout testing in a stable state, thus improving the reliability and accuracy of the test results.

[0019] Optionally, in one possible implementation, a positioning hole is provided at one end of the second mandrel that extends into the test space, and the positioning post can be inserted into the positioning hole.

[0020] In the above technical solution, the positioning post can be inserted into the positioning hole at the end of the second mandrel that extends into the test space, further enhancing the coaxiality of the first and second mandrels. The positioning hole provides precise guidance and positioning for the positioning post, increasing the connection stability between the first and second mandrels and preventing relative displacement or shaking between them.

[0021] Optionally, in one possible implementation, the base is threaded with two first locking bolts, which can respectively abut against the first mandrel and the second mandrel.

[0022] In the above technical solution, the two first locking bolts can securely lock the positions of the first mandrel and the second mandrel. After the gear to be tested is installed on the positioning column and the positions of the first mandrel and the second mandrel are adjusted, the first locking bolts are tightened to make them tightly abut against the corresponding mandrel. This can effectively prevent the mandrel from being displaced due to the vibration and torque generated by the rotation of the gear during the testing process, and ensure that the gear to be tested is always in the accurate testing position.

[0023] Alternatively, in one possible implementation, the adjustment mechanism includes a micrometer measuring head inserted into the base, the movable end of the micrometer measuring head being connected to the positioning seat.

[0024] In the above technical solution, the micrometer measuring head has extremely high measurement accuracy. Its moving end is connected to the positioning base, enabling minute and precise adjustments to the position of the positioning base. Furthermore, the micrometer measuring head typically has a clear scale display, allowing operators to directly read the values ​​from the measuring head and thus intuitively understand the movement distance and current position of the positioning base.

[0025] Alternatively, in one possible implementation, a second locking bolt is threaded onto the base, the second locking bolt being able to abut against the micrometer measuring head.

[0026] In the above technical solution, after precisely adjusting the positioning seat using the micrometer measuring head to achieve the ideal meshing state between the driving gear and the gear to be measured, the second locking bolt, threaded onto the base, abuts against the micrometer measuring head, firmly locking the micrometer measuring head in its current position. This effectively prevents accidental movement of the micrometer measuring head during the testing process due to vibration, external interference, or other factors.

[0027] Optionally, in one possible implementation, the bracket is provided with a connecting rod, the end of the connecting rod is provided with a slot, the dial indicator is inserted into the slot, and an adjustment knob is also threaded into the slot, the adjustment knob can adjust the opening of the slot to loosen or lock the dial indicator.

[0028] In the above technical solution, a slot is provided at the end of the connecting rod for the insertion of a dial indicator. The opening of the slot is adjusted by the threaded adjustment knob, which enables quick assembly and disassembly of the dial indicator and facilitates its maintenance and adjustment in the future.

[0029] Optionally, in one possible implementation, a base is also included, wherein both the base and the support are disposed on the base.

[0030] In the above technical solution, both the base and the support are mounted on the base, which provides a unified and stable support platform for the entire testing device, making the entire testing device a whole and facilitating storage and transportation. It also provides a unified reference plane for the entire testing device. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the overall structure of one embodiment.

[0033] Figure 2 This is an overall structural assembly drawing of one embodiment.

[0034] Figure 3 for Figure 2 Enlarged view of part A in the middle.

[0035] Reference numerals: 1-Base; 11-Test space; 12-Guide shaft; 13-First locking bolt; 14-Second locking bolt; 2-Radial jump drive mechanism; 21-Positioning seat; 22-Motor; 23-Reduction module; 3-Drive gear; 4-Positioning shaft group; 41-First spindle; 411-Positioning column; 42-Second spindle; 421-Positioning hole; 5-Adjustment mechanism; 6-Detection mechanism; 61-Bracket; 62-Dial indicator; 7-Connecting rod; 71-Slot; 72-Adjustment knob; 8-Gear to be tested; 9-Base. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0038] Please refer to Figures 1-3 .

[0039] This embodiment provides a gear radial runout detection device, including: a base 1, a radial runout drive mechanism 2, a positioning shaft assembly 4, an adjustment mechanism 5, and a detection mechanism 6; a test space 11 is provided on the base 1, and the test space 11 is located in the middle of the base 1; the radial runout drive mechanism 2 is movably disposed on the base 1, and the output end of the radial runout drive mechanism 2 extends into the test space 11 and is provided with a drive gear 3; the positioning shaft assembly 4 is movably disposed on the base 1 and is used to install the gear 8 to be tested in the test space 11; the adjustment mechanism 5 is disposed on the base 1, connected to the radial runout drive mechanism 2, and is used to adjust the position of the radial runout drive mechanism 2 on the base 1 so that the drive gear 3 meshes with the gear 8 to be tested; the detection mechanism 6 is disposed on the side of the base 1, including a bracket 61 and an adjustable dial indicator 62 disposed on the bracket 61, the detection head of the dial indicator 62 extends into the test space 11 and is used to abut against the tooth surface of the gear 8 to be tested. The end of the detection head of the dial indicator 62 has an arc-shaped surface.

[0040] In this embodiment, the radial runout drive mechanism 2 drives the rotation of the drive gear 3, causing the gear under test 8 meshing with it to rotate synchronously. Since the tooth surface of the gear under test 8 abuts against the detection head of the dial indicator 62, the pointer of the dial indicator 62 will rotate accordingly when the gear under test 8 experiences radial runout. In this way, the actual working state of the gear under test 8 can be simulated to ensure the accuracy of the radial runout detection result of the gear under test 8.

[0041] Furthermore, by adjusting the radial jump drive mechanism 2, when replacing the gear 8 to be tested, there is no need to repeatedly disassemble and reassemble the drive gear 3. Simply move the radial jump drive mechanism 2 as a whole to disengage the drive gear 3 from the gear 8 to be tested, and the gear 8 to be tested can be disassembled and replaced. This greatly shortens the time for gear replacement and positioning, and improves the detection efficiency of the gear 8 to be tested.

[0042] In this embodiment, the radial jump drive mechanism 2 includes a positioning base 21, a motor 22, and a reduction module 23. The positioning base 21 is slidably disposed on the base 1, and the reduction module 23 is disposed on the positioning base 21. The input end of the reduction module 23 is connected to the output end of the motor 22, and the output end of the reduction module 23 constitutes the output end of the radial jump drive mechanism 2 and is provided with a drive gear 3. Alternating spaces communicating with the test space 11 are provided on opposite sides of the positioning base 21. The radial jump drive mechanism 2 is located within the alternating spaces and can move vertically within the alternating spaces. The positioning base 21 has an L-shaped structure. The reduction module includes a frame and several transmission gears 3 disposed on the frame. The output shaft of the motor 22 amplifies the torque through the reduction module 23 and transmits the power to the drive gears 3.

[0043] The motor 22 and the reduction module 23 work together to form the power source of the radial jump drive mechanism 2, which is used to simulate the actual working state of the gear 8 under test. The motor 22 provides a stable power output, while the reduction module 23 can convert the high-speed, low-torque power output of the motor 22 into a low-speed, high-torque power output, so that the drive gear 3 can drive the gear 8 under test to rotate at a suitable speed and torque, which further improves the accuracy of the test results of the gear 8 under test.

[0044] In this embodiment, a plurality of guide shafts 12 are provided on the base 1, and the positioning seat 21 is slidably engaged on the guide shafts 12. In this embodiment, there are two guide shafts 12 arranged in parallel and spaced apart. The positioning seat 21 is provided with guide holes that cooperate with the guide shafts 12. The guide shafts 12 are inserted into the corresponding guide holes, so that the positioning seat 21 can move along the guide shafts 12.

[0045] The guide shaft 12 provides precise guidance for the sliding of the positioning seat 21 on the base 1. The guide shaft 12 ensures that the positioning seat 21 always moves along a predetermined straight line during movement, avoiding deviation, shaking, etc., making the sliding of the positioning seat 21 more stable and smooth, and ensuring the accuracy of the position adjustment of the radial jump drive mechanism 2.

[0046] In this embodiment, the positioning shaft assembly 4 includes a first mandrel 41 and a second mandrel 42 movably inserted into the base 1 and coaxially arranged. One end of the first mandrel 41 extending into the test space 11 is provided with a positioning post 411, which abuts against the end of the second mandrel 42 extending into the test space 11. The gear 8 to be tested is mounted on the positioning post 411. The first mandrel 41 and the second mandrel 42 are horizontally arranged, and when they abut against each other, they together with the positioning post 411 form a groove for placing the gear 8 to be tested. The diameter of the positioning post 411 is smaller than the diameter of the first mandrel 41, and the diameter of the positioning post 411 matches the inner ring of the gear.

[0047] The first mandrel 41 and the positioning post 411 provide a clear installation position for the gear 8 under test, allowing operators to quickly and accurately install it into place. Simultaneously, the positioning post 411 abuts against the end of the second mandrel 42 that extends into the test space 11, effectively preventing the gear 8 from detaching from the positioning post 411 during testing and ensuring the effective execution of the test. Therefore, the first mandrel 41 and the second mandrel 42 provide precise positioning and stable support for the gear 8 under test, ensuring that the gear undergoes radial runout testing in a stable state, thus improving the reliability and accuracy of the test results.

[0048] The second spindle 42 has a positioning hole 421 at one end extending into the test space 11, into which the positioning post 411 can be inserted. The positioning post 411 further enhances the coaxiality of the first spindle 41 and the second spindle 42. The positioning hole 421 provides precise guidance and positioning for the positioning post 411, increasing the connection stability between the first spindle 41 and the second spindle 42 and preventing relative displacement or shaking between them.

[0049] In this embodiment, two first locking bolts 13 are threadedly connected to the base 1, and the two first locking bolts 13 can abut against the first mandrel 41 and the second mandrel 42 respectively. The top of the base 1 is provided with two first threaded holes, and each of the two first threaded holes is threadedly connected with a first locking bolt 13. The first locking bolts 13 can fix the first mandrel 41 or the second mandrel 42 to the base 1 by compression.

[0050] The two first locking bolts 13 can securely lock the positions of the first spindle 41 and the second spindle 42. After the gear to be tested 8 is installed on the positioning post 411 and the positions of the first spindle 41 and the second spindle 42 are adjusted, the first locking bolts 13 are tightened to make them tightly abut against the corresponding spindles. This can effectively prevent the spindles from being displaced due to the vibration and torque generated by the rotation of the gears during the testing process, and ensure that the gear to be tested 8 is always in the accurate testing position.

[0051] In this embodiment, the adjustment mechanism 5 includes a micrometer measuring head inserted into the base 1, and the moving end of the micrometer measuring head is connected to the positioning seat 21. The micrometer measuring head is part of the micrometer, and its specific structure will not be described in detail here, but can be referred to the micrometer.

[0052] The micrometer measuring head has extremely high measurement accuracy. Its moving end is connected to the positioning base 21, enabling minute and precise adjustments to the position of the positioning base 21. Furthermore, the micrometer measuring head typically features a clear scale display, allowing operators to directly read the readings and intuitively understand the distance the positioning base 21 has moved and its current position.

[0053] It should be noted that a second locking bolt 14 is threaded onto the base 1, which can abut against the micrometer measuring head. After precisely adjusting the positioning seat 21 using the micrometer measuring head to achieve the ideal meshing state between the driving gear 3 and the gear 8 to be measured, the second locking bolt 14 threaded onto the base 1 abuts against the micrometer measuring head, firmly locking the micrometer measuring head in its current position. This effectively prevents accidental movement of the micrometer measuring head during the inspection process due to vibration, external interference, or other factors.

[0054] In this embodiment, a connecting rod 7 is provided on the bracket 61, and a slot 71 is provided at the end of the connecting rod 7. The dial indicator 62 is inserted into the slot 71, and an adjustment knob 72 is also threaded into the slot 71. The adjustment knob 72 can adjust the opening of the slot 71 to loosen or lock the dial indicator 62. The slot 71 extends from the end of the connecting rod 7 along its length. The slot 71 is a square slot, and the two opposite sides of the slot 71 are provided with arc-shaped grooves that match the dial indicator 62. The two opposite arc-shaped grooves can fit against the outer wall of the dial indicator 62.

[0055] The end of the connecting rod 7 has a slot 71 for the micrometer 62 to be inserted. The opening of the slot 71 can be adjusted by the threaded adjustment knob 72, which enables quick installation and removal of the micrometer 62 and facilitates the maintenance and adjustment of the micrometer 62 in the future.

[0056] It should be noted that this embodiment also includes a base 9, with the base 1 and the bracket 61 both mounted on the base 9. By mounting the base 1 and the bracket 61 on the base 9, the base 9 provides a unified and stable support platform for the entire testing device, making the entire testing device a single unit and facilitating storage and transportation. It also provides a unified reference plane for the entire testing device.

[0057] In the description of this utility model, it should be understood that terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0058] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0059] 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 gear tooth jump detection device characterized by comprising: include: A base, on which a test space is provided; A radial jump drive mechanism is movably mounted on the base, and the output end of the radial jump drive mechanism extends into the test space and is equipped with a drive gear; The positioning shaft assembly is movably mounted on the base and is used to install the gear to be tested within the test space; An adjustment mechanism, disposed on the base and connected to the radial jump drive mechanism, is used to adjust the position of the radial jump drive mechanism on the base so that the driving gear meshes with the gear under test. The testing mechanism, located on the side of the base, includes a bracket and an adjustable dial indicator mounted on the bracket, wherein the testing head of the dial indicator is used to contact the tooth surface of the gear to be tested.

2. The gear tooth jump detection apparatus according to claim 1, characterized by The radial jump drive mechanism includes a positioning seat, a motor, and a reduction module. The positioning seat is slidably disposed on the base, and the reduction module is disposed on the positioning seat. The input end of the reduction module is connected to the output end of the motor, and the output end of the reduction module constitutes the output end of the radial jump drive mechanism and is provided with the drive gear.

3. The gear tooth jump detection apparatus according to claim 2, characterized by The base is provided with several guide shafts, and the positioning seat is slidably engaged on the guide shafts.

4. The gear tooth jump detection apparatus according to claim 1, characterized by The positioning shaft assembly includes a first mandrel and a second mandrel that are movably inserted into the base and coaxially arranged. The end of the first mandrel that extends into the test space is provided with a positioning post. The positioning post abuts against the end of the second mandrel that extends into the test space. The gear to be tested is mounted on the positioning post.

5. The gear tooth jump detection apparatus according to claim 4, characterized by The second mandrel has a positioning hole at one end that extends into the test space, and the positioning pin can be inserted into the positioning hole.

6. The gear tooth jump detection apparatus according to claim 4, characterized by The base is threaded with two first locking bolts, which can respectively abut against the first mandrel and the second mandrel.

7. The gear tooth jump detection apparatus according to claim 2, characterized by The adjustment mechanism includes a micrometer measuring head inserted into the base, and the moving end of the micrometer measuring head is connected to the positioning base.

8. The gear tooth jump detection apparatus according to claim 7, characterized by The base is threaded with a second locking bolt, which can abut against the micrometer measuring head.

9. The gear tooth jump detection apparatus according to claim 1, characterized by The bracket is provided with a connecting rod, and the end of the connecting rod is provided with a slot. The dial indicator is inserted into the slot. An adjustment knob is also threaded into the slot. The adjustment knob can adjust the opening of the slot to loosen or lock the dial indicator.

10. The gear tooth jump detection apparatus according to claim 1, characterized by It also includes a base, and both the base and the bracket are disposed on the base.

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