Dual-row planetary gear phase angle detection device

Abstract

The utility model discloses a kind of double planetary gear phase angle detection devices, it includes base, vertical fixed in base for installing the positioning shaft of measured double planetary gear, the circumferential positioning device acting on the lower gear of measured double planetary gear and the detection device acting on the upper gear of measured double planetary gear in it. The utility model double planetary gear phase angle detection device, measured double planetary gear is installed on positioning shaft, then the circumferential position of measured double planetary gear is fixed by circumferential positioning device, again by the contact of probe and upper gear of detection device's first linear driver and first linear driver drive probe, the coordinates of contact point are measured by probe, and the phase angle between upper gear and lower gear can be calculated accordingly, and measurement operation efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of gear quality inspection technology, and in particular to a device for detecting the combined deviation of the inner bore and radial direction of a planetary gear. Background Technology

[0002] The gear phase angle refers to the relative positional relationship between two gears on a concentric shaft, that is, the angular difference between the meshing points of the two gear teeth. The magnitude of the gear phase angle determines the accuracy and reliability of the gear transmission. When the phase angle error between the two gears exceeds a certain value, it will lead to increased vibration and noise in the gear transmission, resulting in reduced transmission efficiency and decreased transmission accuracy. In addition, changes in the phase angle can easily cause gear system failure. Therefore, accurate measurement of the gear phase angle is crucial for the safety and stability of gear transmissions. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a phase angle detection device for a double planetary gear, so as to solve the technical problem of measuring the phase angle of a double planetary gear.

[0004] The present invention relates to a double planetary gear phase angle detection device, comprising a base, a positioning shaft vertically fixed on the base for mounting the double planetary gear to be tested, a circumferential positioning device acting on the lower gear of the double planetary gear to be tested, and a detection device acting on the upper gear of the double planetary gear to be tested.

[0005] The circumferential positioning device includes a support fixed on the base, a guide seat set on the support, a slide table that slides with the guide seat, a cantilever fixed on the front of the slide table, a positioning head fixed at the front end of the cantilever for inserting into the gear tooth groove, a spring for driving the slide table to move toward the double planetary gear being measured, and a drive cylinder for driving the slide table to move away from the double planetary gear being measured.

[0006] The detection device includes a bracket, a primary linear actuator mounted on the bracket, a primary slide driven by the primary linear actuator, a secondary slide that slides with the primary slide, a secondary linear actuator mounted on the primary slide to drive the movement of the secondary slide, a detection rod mounted at the front of the secondary slide, and a probe mounted at the front end of the detection rod. The driving directions of the primary and secondary linear actuators are parallel to the movement direction of the slide.

[0007] Furthermore, a connecting rod is connected to the side of the slide table, one end of the spring is connected to the connecting rod through a connector, and the other end of the spring is connected to the support through a connector.

[0008] Furthermore, the probe includes a front rod section, a rear rod section hinged to the front rod section, and a torsion spring for stabilizing the front rod section, with the probe disposed at the end of the front rod section.

[0009] Furthermore, the double planetary gear phase angle detection device also includes a loading and unloading mechanism for loading and unloading the double planetary gear under test on the positioning shaft. The loading and unloading mechanism includes a lifting driver, a rotary driver connected to the lifting driver, a bidirectional telescopic cylinder connected to the rotary driver, and an arc-shaped clamping plate connected to the telescopic rod of the bidirectional telescopic cylinder for clamping the gear.

[0010] The beneficial effects of this utility model are:

[0011] This utility model relates to a double planetary gear phase angle detection device. The double planetary gear to be tested is installed on a positioning shaft. Then, the circumferential position of the double planetary gear to be tested is fixed by a circumferential positioning device. Then, the probe is driven to contact the upper gear by a first-stage linear driver and a second-stage linear driver of the detection device. The coordinates of the contact point are measured by the probe, and the phase angle between the upper gear and the lower gear can be calculated accordingly. The measurement operation is highly efficient. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of a double planetary gear phase angle detection device.

[0013] Figure 2 This is a three-dimensional structural diagram of a double planetary gear phase angle detection device from another perspective. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] like Figure 1-2 As shown, the phase angle detection device for a double planetary gear in this embodiment includes a base 1, a positioning shaft 2 vertically fixed on the base for mounting the double planetary gear under test, a circumferential positioning device acting on the lower gear of the double planetary gear under test, and a detection device acting on the upper gear of the double planetary gear under test.

[0016] The circumferential positioning device includes a support 3 fixed on a base, a guide seat 4 mounted on the support, a slide 5 slidably engaged with the guide seat, a cantilever 6 fixed on the front of the slide, a positioning head 7 fixed at the front end of the cantilever for inserting into the gear tooth groove, a spring 9 for driving the slide towards the tested double planetary gear, and a drive cylinder 10 for driving the slide away from the tested double planetary gear. In this embodiment, the drive cylinder 10 is a pneumatic cylinder; however, in different embodiments, it can also be a hydraulic cylinder, an electromagnetic telescopic rod, or other forms. In this embodiment, a connecting rod 11 is connected to the side of the slide, one end of the spring is connected to the connecting rod via a connector 12, and the other end of the spring is connected to the support via a connector; in this embodiment, the connector 12 is a perforated plate fixed with screws.

[0017] The detection device includes a bracket 13, a primary linear actuator 14 mounted on the bracket, a primary slide 15 driven by the primary linear actuator, a secondary slide 16 slidably engaged with the primary slide, a secondary linear actuator 17 mounted on the primary slide to drive the movement of the secondary slide, a detection rod 18 located at the front of the secondary slide, and a probe 19 located at the front end of the detection rod. The driving directions of the primary linear actuators 14 and 15 are parallel to the movement direction of the slide table 5. In this embodiment, the primary linear actuator 14 and the secondary linear actuator 17 are cylinders; however, in different embodiments, they may also be hydraulic cylinders or other forms.

[0018] During the testing process, the double planetary gear 20 to be tested is placed on the positioning shaft 2. Then, the drive cylinder 10 is controlled to release the piston rod, causing the slide 5 to move forward under the action of the spring 9. This allows the positioning head 7 to insert into the tooth groove of the lower gear of the double planetary gear 20. The spring 9 drives the positioning head 7 to make contact with the tooth surface without any backlash, and the contact impact is small, so as not to damage the tooth surface. After the positioning head 7 contacts the tooth surface of the lower gear and positions the gear circumferentially, the first-stage linear actuator 14 drives the first-stage slide 15 to move forward, thereby quickly moving the probe 19 to a position close to the gear being tested. Then, the second-stage linear actuator 17 drives the second-stage slide 26 to move forward, so that the probe 19 contacts the tooth surface of the upper gear. The movement speed of the second-stage linear actuator 17 is relatively slow, which can reduce the impact of the probe contacting the tooth surface and help protect the probe. By obtaining the coordinates of the contact point by the probe, the phase angle between the upper gear and the lower gear can be calculated.

[0019] As an improvement to the above embodiment, the probe 18 includes a front rod section 181, a rear rod section 182 hinged to the front rod section, and a torsion spring 183 for stabilizing the front rod section. The probe is disposed at the end of the front rod section. When the probe 19 contacts the gear tooth surface, the front rod section 181 in this improvement can adaptively rotate slightly under force, thereby further protecting the probe from collision damage.

[0020] As an improvement to the above embodiment, the double planetary gear phase angle detection device further includes a loading and unloading mechanism for loading and unloading the double planetary gear under test on the positioning shaft. The loading and unloading mechanism includes a lifting driver 21, a rotary driver 22 connected to the lifting driver, a bidirectional telescopic cylinder 23 connected to the rotary driver, and an arc-shaped clamping plate 24 connected to the telescopic rod of the bidirectional telescopic cylinder for clamping the gear. In this embodiment, the lifting driver 21 can be a linear motor; however, in different embodiments, it can also be a rodless cylinder or other forms. In this embodiment, the rotary driver is a motor; however, in different embodiments, it can also be a pneumatic motor or other forms.

[0021] During the specific testing process, when the tested double planetary gear is transferred from other testing stations to the arc-mouth clamp 24 by the robot arm, the bidirectional telescopic cylinder 23 drives the arc-mouth clamp to hold the gear. After the robot arm moves up and away, the rotary driver 22 drives the bidirectional telescopic cylinder 23 to rotate 180°. Then, the lifting driver 22 drives the tested double planetary gear, which is held by the arc-mouth clamp 24, to move down and fit onto the positioning shaft 2. Finally, the arc-mouth clamp 24 releases the gear and moves up to reset. In this way, the automatic installation of the tested gear is realized, which can improve the efficiency of phase angle detection.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A phase angle detection device for a double planetary gear, characterized in that: It includes a base, a positioning shaft vertically fixed on the base for mounting the double planetary gear under test, a circumferential positioning device acting on the lower gear of the double planetary gear under test, and a detection device acting on the upper gear of the double planetary gear under test. The circumferential positioning device includes a support fixed on the base, a guide seat set on the support, a slide table that slides with the guide seat, a cantilever fixed on the front of the slide table, a positioning head fixed at the front end of the cantilever for inserting into the gear tooth groove, a spring for driving the slide table to move toward the double planetary gear being measured, and a drive cylinder for driving the slide table to move away from the double planetary gear being measured. The detection device includes a bracket, a primary linear actuator mounted on the bracket, a primary slide driven by the primary linear actuator, a secondary slide that slides with the primary slide, a secondary linear actuator mounted on the primary slide to drive the movement of the secondary slide, a detection rod mounted at the front of the secondary slide, and a probe mounted at the front end of the detection rod. The driving directions of the primary and secondary linear actuators are parallel to the movement direction of the slide.

2. The phase angle detection device for a double planetary gear according to claim 1, characterized in that: A connecting rod is connected to the side of the slide table. One end of the spring is connected to the connecting rod through a connector, and the other end of the spring is connected to the support through a connector.

3. The phase angle detection device for a double planetary gear according to claim 1, characterized in that: The probe includes a front rod section, a rear rod section hinged to the front rod section, and a torsion spring for stabilizing the front rod section. The probe is mounted on the end of the front rod section.

4. The phase angle detection device for a double planetary gear according to claim 1, characterized in that: It also includes a loading and unloading mechanism for loading and unloading the tested double planetary gear on the positioning shaft. The loading and unloading mechanism includes a lifting drive, a rotary drive connected to the lifting drive, a bidirectional telescopic cylinder connected to the rotary drive, and an arc-shaped clamping plate connected to the telescopic rod of the bidirectional telescopic cylinder for clamping the gear.

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