Combined measuring device for measuring various tolerances of cylindricity and circular run-out of bevel gear

Abstract

The utility model discloses a combined measuring device for measuring various tolerances of cylindricity and circle run-out of a bevel gear, which relates to the field of gear detection equipment and comprises a frame body, a gear fixing structure and a measuring structure, the bottom of the gear fixing structure is fixedly mounted on a turntable, the turntable is fixedly connected onto a power structure, and the power structure is fixedly connected onto the frame body. The power structure is fixedly installed on the fixing plate, the measuring structure is arranged on the outer side of the gear fixing structure and installed on the frame body, and detection of the device can be divided into a supporting detection assembly, a cylindricity detection assembly and a run-out degree detection assembly. The cylindricity and the circle run-out can be separately detected and can also be used in a combined manner, so that the cylindricity and the circle run-out are suitable for various use scenes.

Description

Technical Field

[0001] The utility model relates to the field of gear detection equipment, in particular to a combined measuring device for measuring multiple tolerances of cylindricity and circular runout of bevel gears. Background Art

[0002] Bevel gears are used to transmit motion and power between two intersecting shafts. Gear accuracy plays a significant role in the noise and vibration of bevel gears during operation. According to incomplete statistics, pitch circle runout contributes approximately 15-25% to bevel gear noise and performance. Cylindricity is also a key indicator of gear tooth profile error.

[0003] The existing technology uses manual contact measurement methods to measure these parameters. Due to other uncontrollable factors such as different workers' proficiency and limited energy, the measurement data has low measurement accuracy. For large-scale and long-term product precision testing, the accuracy will decrease. Moreover, the measurement is cumbersome and inefficient, making it unsuitable for continuous measurement and automated production. Utility Model Content

[0004] The purpose of the utility model is to provide a combined measuring device for measuring various tolerances of the cylindricity and circular runout of bevel gears, so as to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: a combined measuring device for measuring multiple tolerances of cylindricity and circular runout of bevel gears, comprising a frame, a gear fixing structure, and a measuring structure, wherein the bottom of the gear fixing structure is fixedly mounted on a turntable, the turntable is fixedly connected to a power structure, the power structure is fixedly mounted on a fixed plate, and the measuring structure is arranged outside the gear fixing structure and mounted on the frame;

[0006] The gear fixing structure includes a bracket and a magnetic seat, the bottom of the bracket is fixedly mounted on the fixing plate, and the magnetic seat is fixedly mounted on the bracket;

[0007] The measuring structure includes a micrometer 1 and a cylindricity measuring assembly, wherein the micrometer 1 is fixedly mounted on a movable rod, the bottom of which is mounted on a rod fixing seat, and the cylindricity measuring assembly includes a plurality of micrometer 2s arranged at equal intervals around the bevel gear, and the micrometer 2s are adjustably fixedly mounted on a support frame;

[0008] The power structure includes a motor, a synchronous belt and a rotating shaft fixing seat. The motor is fixedly installed below the fixed plate. The synchronous belt is connected between the output shaft of the motor and the pulley. The pulley is fixedly installed on the rotating shaft. The rotating shaft is fixedly installed on the turntable through the rotating shaft fixing seat.

[0009] Preferably, the movable rod and the rod fixing seat are connected via a rod sleeve, and the dial indicator 1 is fixedly mounted on the movable rod via a dial indicator seat.

[0010] Preferably, the second micrometer is fixedly mounted on the support frame via an adjusting block and a locking block, and the adjusting block and the locking block are connected via bolts.

[0011] Preferably, the motor is fixedly mounted on a motor fixing plate, the motor fixing plate is fixedly mounted on a motor connecting plate, the motor connecting plate is fixedly mounted below the fixing plate through a support column, a connecting plate is provided on the side of the motor connecting plate, a sensor pad is provided at the bottom of the connecting plate, and a sensor is provided on the sensor pad.

[0012] Preferably, a sensing sheet is provided at the bottom of the rotating shaft, and the sensing sheet includes four groups arranged at 90° intervals, and the sensing sheet is located at a position in the sensor that can be detected by the sensor.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. It can be applied to batch testing of test pieces. The testing is fast and convenient. Compared with traditional measurement methods, it has higher detection accuracy and speed, and improves the detection efficiency.

[0015] 2. The detection system of this utility model can be divided into support detection component, cylindricity detection component and runout detection component. Cylindricity and circular runout can be detected separately or in combination, making it suitable for various usage scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the internal structure of the utility model.

[0019] In the figure: 1-frame body, 2-rod fixing seat, 3-rod sleeve, 4-movable rod, 5-micrometer seat, 6-micrometer one, 7-support frame, 8-micrometer two, 10-adjusting block, 12-locking block, 16-rotating shaft fixing seat, 17-turntable, 18-fixed plate, 19-motor, 20-motor fixing plate, 21-rotating shaft, 22-synchronous belt, 24-induction plate, 25-sensor pad, 28-large pulley, 31-motor connecting plate, 32-support column, 35-magnetic seat. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figures 1 to 3 The utility model provides a technical solution: a combined measuring device for measuring multiple tolerances of cylindricity and circular runout of bevel gears, comprising a frame body 1, a gear fixing structure and a measuring structure, wherein the bottom of the gear fixing structure is fixedly mounted on a turntable 17, the turntable 17 is fixedly connected to a power structure, the power structure is fixedly mounted on a fixing plate 18, and the measuring structure is arranged on the outside of the gear fixing structure and mounted on the frame body 1;

[0022] The gear fixing structure includes a bracket 13 and a magnetic seat 35. The bottom of the bracket 13 is fixedly mounted on the fixing plate 18. The magnetic seat 35 is fixedly mounted on the bracket 13, and the bevel gear is fixed by the magnetic seat 18.

[0023] The measuring structure includes a micrometer 1 6 and a cylindricity measuring assembly, wherein the micrometer 1 6 is fixedly mounted on the movable rod 4, and the bottom of the movable rod 4 is mounted on the rod fixing seat 2. The cylindricity measuring assembly includes a plurality of micrometer 2s 8 arranged at equal intervals around the bevel gear, and the micrometer 2 8 is adjustably fixedly mounted on the support frame 7. After the micrometer 1 6 is adjusted to a suitable position, the outer tooth surface of the bevel gear can be tested for runout when the bevel gear rotates slowly, and the runout value of the tooth surface of the bevel gear is obtained. The micrometer 2 8 is provided in multiple groups, and by adjusting the upper and lower positions of each micrometer 2 8 to correspond to different height positions of the cylindrical surface of the bevel gear, different positions of the cylindrical surface are measured;

[0024] The power structure includes a motor 19, a synchronous belt 22 and a rotating shaft fixing seat 16. The motor 19 is fixedly installed below the fixed plate 18. The synchronous belt 22 is connected between the output shaft of the motor 19 and the pulley 28. The pulley 28 is fixedly installed on the rotating shaft 21. The rotating shaft 21 is fixedly installed on the turntable 17 through the rotating shaft fixing seat 16. The rotating shaft 21 and the turntable 17 are driven to rotate by the motor 19, thereby realizing the rotation of the bevel gear.

[0025] In this embodiment, the movable rod 4 is connected to the rod fixing seat 2 through the rod sleeve 3, the micrometer 6 is fixedly installed on the movable rod 4 through the micrometer seat 5, and the rod sleeve 3 and the rod fixing seat 2 are connected by bolts. The tightness of the rod sleeve 3 is achieved by loosening the bolts, and it is convenient to adjust the angle of the movable rod 4 when loosened.

[0026] In this embodiment, the micrometer 2 8 is fixedly mounted on the support frame 7 through an adjusting block 10 and a locking block 12. The adjusting block 10 and the locking block 12 are connected by bolts. By loosening the bolts, the height position of the micrometer 2 6 on the support frame 7 is adjusted.

[0027] In this embodiment, the motor 19 is fixedly mounted on the motor fixing plate 20, the motor fixing plate 20 is fixedly mounted on the motor connecting plate 31, and the motor connecting plate 31 is fixedly mounted below the fixing plate 18 through the support column 32. A connecting piece is provided on the side of the motor connecting plate 31, and a sensor pad 25 is provided at the bottom of the connecting piece. A sensor is provided on the sensor pad 25, and the sensor is used to measure the motor speed. By measuring the micrometer readings at different speeds, more detailed and rigorous measurement values ​​can be obtained.

[0028] In this embodiment, a sensing sheet 24 is provided at the bottom of the rotating shaft 21. The sensing sheet 24 includes four groups arranged at 90° intervals. The sensing sheet 24 is located at a position inside the sensor that can be detected by the sensor. The sensing sheet 24 is used to provide a testing basis for the sensor, so as to obtain more accurate measurement values.

[0029] Working principle: During measurement, first the bevel gear is fixed on the bracket 13 through the magnetic seat 35, and then the motor 19 is started. The bevel gear is measured while it is rotating. The test can be completed by setting the dial indicator 1 6 and the dial indicator 2 8.

[0030] Based on the above, the detection of the utility model can be divided into a support detection component, a cylindricity detection component, and a runout detection component. Cylindricity and circular runout can be detected separately or in combination, making it suitable for a variety of usage scenarios.

[0031] It is understood from common technical knowledge that the present invention may be implemented through other embodiments that do not depart from its spirit or essential features. Therefore, the embodiments disclosed above are, in all respects, merely illustrative and not exclusive. All modifications within the scope of the present invention or equivalent to the scope of the present invention are intended to be encompassed by the present invention.

Claims

1. A combined measuring device for measuring multiple tolerances of bevel gear cylindricity and circular runout, characterized by: It comprises a frame body (1), a gear fixing structure and a measuring structure, wherein the bottom of the gear fixing structure is fixedly mounted on a turntable (17), the turntable (17) is fixedly connected to a power structure, the power structure is fixedly mounted on a fixing plate (18), and the measuring structure is arranged outside the gear fixing structure and mounted on the frame body (1); The gear fixing structure comprises a bracket (13) and a magnetic seat (35), the bottom of the bracket (13) is fixedly mounted on a fixing plate (18), and the magnetic seat (35) is fixedly mounted on the bracket (13); The measuring structure includes a micrometer 1 (6) and a cylindricity measuring assembly, wherein the micrometer 1 (6) is fixedly mounted on a movable rod (4), the bottom of the movable rod (4) is mounted on a rod fixing seat (2), and the cylindricity measuring assembly includes a plurality of micrometer 2 (8) arranged at equal intervals around the bevel gear, and the micrometer 2 (8) is adjustably fixedly mounted on a support frame (7); The power structure comprises a motor (19), a synchronous belt (22) and a rotating shaft fixing seat (16), wherein the motor (19) is fixedly mounted below a fixing plate (18), the synchronous belt (22) is connected between an output shaft of the motor (19) and a pulley (28), the pulley (28) is fixedly mounted on a rotating shaft (21), and the rotating shaft (21) is fixedly mounted on a turntable (17) via the rotating shaft fixing seat (16).

2. A combined measuring device for measuring multiple tolerances of bevel gear cylindricity and circular runout according to claim 1, characterized in that: The movable rod (4) and the rod fixing seat (2) are connected via a rod sleeve (3), and the micrometer 1 (6) is fixedly mounted on the movable rod (4) via a micrometer seat (5).

3. The combined measuring device for measuring multiple tolerances of bevel gear cylindricity and circular runout according to claim 1, characterized in that: The second micrometer (8) is fixedly mounted on the support frame (7) via an adjusting block (10) and a locking block (12), and the adjusting block (10) and the locking block (12) are connected via bolts.

4. The combined measuring device for measuring multiple tolerances of bevel gear cylindricity and circular runout according to claim 1, characterized in that: The motor (19) is fixedly mounted on a motor fixing plate (20), the motor fixing plate (20) is fixedly mounted on a motor connecting plate (31), the motor connecting plate (31) is fixedly mounted below the fixing plate (18) via a support column (32), a connecting piece is provided on the side of the motor connecting plate (31), a sensor pad (25) is provided at the bottom of the connecting piece, and a sensor is provided on the sensor pad (25).

5. The combined measuring device for measuring multiple tolerances of cylindricity and circular runout of bevel gears according to claim 4, characterized in that: A sensing sheet (24) is provided at the bottom of the rotating shaft (21), and the sensing sheet (24) includes four groups arranged at 90° intervals. The sensing sheet (24) is located at a position in the sensor that can be detected by the sensor.

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