CN109506563B - Slewing bearing radial clearance and tooth surface runout detection device and method - Google Patents
Slewing bearing radial clearance and tooth surface runout detection device and method Download PDFInfo
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- CN109506563B CN109506563B CN201811318098.XA CN201811318098A CN109506563B CN 109506563 B CN109506563 B CN 109506563B CN 201811318098 A CN201811318098 A CN 201811318098A CN 109506563 B CN109506563 B CN 109506563B
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- hard cylinder
- inner gear
- round rod
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention relates to a radial clearance and tooth surface runout detection device and method of a slewing bearing, which are arranged on a mechanical arm of a robot, wherein the device comprises a hard cylinder, a laser range finder, a shell, an in-place sensor, a round rod and a spring, wherein the upper part of the hard cylinder is processed into a measurement plane, the middle part of the hard cylinder is connected with the shell through the round rod, the front end of the round rod is fixedly connected with the hard cylinder, and the rear end of the round rod is inserted into the shell and can move freely; the round rod is sleeved with a spring, and two ends of the spring are respectively in contact connection with the hard cylinder and the shell; the shell is provided with a laser range finder, the range finding range of the laser range finder is opposite to the measuring plane of the hard cylinder, and the rear part of the shell is provided with a in-place sensor. The invention has simple and convenient structure, can replace manual work to automatically detect the radial clearance of the slewing bearing and the tooth surface runout value of the gear, and has high detection precision and high efficiency.
Description
Technical Field
The invention relates to a tooth surface runout detection device, in particular to a radial clearance of a slewing bearing, a tooth surface runout detection device and a detection method.
Background
The existing detection method for radial clearance and tooth surface runout of the slewing bearing in the assembly workshop is mostly manually carried out, the manual detection has complicated operation steps, the hoisting of large-size workpieces is more time-consuming and labor-consuming, the error range is large, the detection precision is low, and workers are extremely easy to fatigue when detecting mass assembly bearings. Therefore, it is necessary to design a slewing bearing radial clearance and tooth surface runout detection device and a detection method.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the slewing bearing radial clearance and gear tooth surface runout detection device and method which are simple and convenient in structure and capable of replacing manual automatic detection, and the device is high in detection precision and high in efficiency.
In order to achieve the above purpose, the technical scheme of the invention is as follows: the device comprises a hard cylinder, a laser range finder, a shell, an in-place sensor, a round rod and a spring, wherein the upper part of the hard cylinder is processed into a measuring plane, the middle part of the hard cylinder is connected with the shell through the round rod, the front end of the round rod is fixedly connected with the hard cylinder, and the rear end of the round rod is inserted into the shell and can move freely; the round rod is sleeved with a spring, and two ends of the spring are respectively in contact connection with the hard cylinder and the shell; the shell is provided with a laser range finder, the range finding range of the laser range finder is opposite to the measuring plane of the hard cylinder, and the rear part of the shell is provided with a in-place sensor.
Further, the front end of the round rod is tightly matched with the hard cylinder through threads.
The detection method adopting the slewing bearing radial clearance and tooth surface runout detection device comprises a radial clearance measurement detection method and a tooth surface runout measurement detection method:
the measuring radial clearance detection method comprises the following steps: firstly, lifting an inner gear to be measured, which is assembled by an inner gear and an outer gear, to a suspended state along the axial direction, moving a hard cylinder into a tooth groove of the inner gear to be measured along the radial direction by a mechanical arm, buffering a spring when the hard cylinder approaches to the tooth profile infinitely, starting to retract a round rod, stopping the mechanical arm from advancing after a position sensor at the rear end senses the position, and recording the distance from a measured reference point to a measuring plane of the hard cylinder as D1 by a laser range finder; secondly, moving the measured internal gear to a limit position in the radial direction, enabling the outer ring of the measured internal gear to be motionless, enabling the inner ring to be motionless, enabling the mechanical arm to drive the hard cylinder to move into the tooth socket of the measured internal gear in the radial direction, enabling the spring to play a buffering role when the hard cylinder approaches to the tooth profile, enabling the round rod to start to retract, enabling the mechanical arm to stop advancing after a position sensor at the rear end senses the position, enabling the laser range finder to record the distance from a reference point selected by measurement to a measuring plane of the hard cylinder as D2, calculating the difference between the D2 and the D1, namely, enabling the radial gap to be more accurate, and performing multipoint measurement according to the same two steps after rotating the inner tooth of the measured internal gear to obtain an average value;
the measuring tooth surface runout detection method comprises the following steps: the method comprises the steps that an inner gear of an inner gear to be measured, which is assembled by an inner gear and an outer gear, is rotated, a hard cylinder is moved into a tooth groove of the inner gear to be measured by a mechanical arm in the radial direction, when the hard cylinder approaches to a tooth profile infinitely, a spring plays a role in buffering, a round rod is retracted, a rear end in-place sensor senses a position and then the mechanical arm stops advancing, a laser range finder records the distance from a measurement reference point to a measurement plane of the hard cylinder as d1, the mechanical arm is retracted, an inner ring of the inner gear to be measured is rotated, the mechanical arm circularly performs a ranging action, ranging is performed on every certain number of teeth, ranging values are recorded as d2 and d3 … … dn, and after a plurality of points are measured, all ranging values are automatically calculated by a computer to obtain a maximum value and a minimum value, namely a tooth surface runout value.
Compared with the prior art, the invention has the beneficial effects that: the detection efficiency is fast, flexible and convenient, the precision is high, and the detection method can be suitable for the detection of radial gaps and tooth surface runout of slewing bearings with various specifications and types.
Drawings
FIG. 1 is a front view of a slewing bearing radial clearance and gear tooth surface runout detection device of the present invention;
fig. 2 is a schematic diagram of the detection operation of the slewing bearing radial clearance and gear tooth surface runout detection device of the present invention.
Detailed Description
The invention is further described below with reference to the drawings and examples.
As shown in fig. 1 and 2, the slewing bearing radial clearance and tooth surface runout detection device comprises a hard cylinder 1, a laser range finder 2, a shell 3, an in-place sensor 4, a round rod 5 and a spring 6. The slewing bearing radial clearance and tooth surface runout detection device is arranged on a robot arm, the upper part of a hard cylinder 1 is processed into a measurement plane, a threaded hole is formed in the middle of the hard cylinder 1, a laser range finder 2 is arranged on a shell 3, the range finding range of the laser range finder is over against the measurement plane of the hard cylinder 1, and an in-place sensor 4 is arranged at the rear part of the shell 3. The front end of the round rod 5 is in fastening fit with the hard cylinder 1 through threads, the rear end of the round rod 5 is inserted into the shell 3 and can move freely, the spring 6 is arranged on the round rod 5, one end of the spring 6 is in contact connection with the hard cylinder 1, and the other end of the spring 6 is in contact connection with the shell 3.
The working process of the invention comprises the following steps:
measuring radial clearance: under the premise that the inner gear ring and the outer gear ring are assembled, firstly, the inner gear ring is required to be lifted to a suspended state by external force along the axial direction, at the moment, the hard cylinder 1 moves into a tooth slot along the radial direction under the action of the mechanical arm, when the hard cylinder 1 approaches the tooth profile in an infinite way, the spring 6 plays a role in buffering, the round rod 5 starts to retract, the mechanical arm stops advancing after the sensor 4 at the rear end senses the position, the laser range finder 2 measures the distance from a selected reference point to the measuring plane of the hard cylinder 1 (denoted as D1), secondly, the external force enables the inner gear ring to move to a limit position along the radial direction (the outer ring is motionless, the inner ring moves along the radial direction), the hard cylinder 1 moves into the tooth slot under the action of the mechanical arm, when the hard cylinder 1 approaches the tooth profile, the spring 6 plays a role in buffering, the round rod 5 starts to retract, the mechanical arm stops advancing after the sensor 4 at the rear end senses the position, the laser range finder 2 measures the distance from the selected reference point to the measuring plane of the hard cylinder 1, the distance is denoted as D2, the difference between the D2 and the D1 is the radial gap, namely the radial gap, the difference between the distance and the measured from the reference point to the measuring plane of the hard cylinder 1 is more than the average value, and the average value can be measured according to the same method.
And measuring tooth surface runout, namely rotating an inner gear by an external force mechanism on the premise that an inner gear and an outer gear are assembled, moving a hard cylinder 1 into a tooth slot in the radial direction under the action of a mechanical arm, when the hard cylinder 1 approaches to the tooth profile in an infinite way, buffering a spring 6, retracting a round rod 5, stopping the mechanical arm from advancing after a sensor 4 at the rear end senses the position, enabling a laser range finder 2 to measure the distance from a reference point to a measuring plane of the hard cylinder 1 (marked as d 1), retracting the mechanical arm, driving the inner ring to rotate by the external force, circularly performing ranging action by the mechanical arm, measuring the distance at intervals of a certain number of teeth (marked as d2 and d3 … … dn), and automatically performing difference value calculation on all ranging values in a computer system after measuring a plurality of points, wherein the obtained maximum value and the minimum value are tooth surface runout values.
Claims (2)
1. The radial clearance and tooth surface runout detection method of the slewing bearing comprises a radial clearance detection method and a tooth surface runout detection method, wherein the radial clearance and tooth surface runout detection device of the slewing bearing is arranged on a mechanical arm of a robot, the device comprises a hard cylinder (1), a laser range finder (2), a shell (3), an in-place sensor (4), a round rod (5) and a spring (6), the upper part of the hard cylinder (1) is processed into a measurement plane, the middle part of the hard cylinder is connected with the shell (3) through the round rod (5), the front end of the round rod (5) is fixedly connected with the hard cylinder (1), and the rear end of the round rod (5) is inserted into the shell (3) and can move freely; a spring (6) is sleeved on the round rod (5), and two ends of the spring (6) are respectively in contact connection with the hard cylinder (1) and the shell (3); install laser range finder (2) on casing (3), the range finding scope of laser range finder (2) just right the measurement plane of stereoplasm cylinder (1), and sensor (4) in place, its characterized in that are installed at the rear portion of casing (3):
the measuring radial clearance detection method comprises the following steps: firstly, lifting an inner gear to be measured, which is assembled by an inner gear and an outer gear, to a suspended state along the axial direction, moving a hard cylinder (1) into a tooth socket of the inner gear to be measured by a mechanical arm along the radial direction, buffering a spring (6) when the hard cylinder (1) approaches to the tooth profile infinitely, starting to retract a round rod (5), stopping the mechanical arm from advancing after a position sensor (4) at the rear end senses the position, and marking the distance from a reference point to a measuring plane of the hard cylinder (1) to be measured as D1 by a laser range finder (2); secondly, enabling an outer gear ring of the measured inner gear to be fixed, enabling the inner gear ring of the measured inner gear to move to an extreme position in the radial direction, enabling the mechanical arm to drive the hard cylinder (1) to move into a tooth groove of the inner gear ring of the measured inner gear in the radial direction, enabling the spring (6) to play a buffering role when the hard cylinder (1) approaches to the tooth profile, enabling the round rod (5) to fall back, enabling the mechanical arm to stop advancing after the in-place sensor (4) at the rear end senses the position, enabling the laser range finder (2) to record the distance from a reference point selected by measurement to a measurement plane of the hard cylinder (1) as D2, and calculating the difference value between the D2 and the D1 as a radial gap; in order to be more accurate, after rotating the inner gear ring of the measured inner gear, multipoint measurement is carried out according to the same method of the first step and the second step, and an average value is obtained;
the measuring tooth surface runout detection method comprises the following steps: the method comprises the steps that an inner gear ring of an inner gear to be measured, which is assembled by an inner gear and an outer gear, is rotated, a hard cylinder (1) is moved into a tooth groove of the inner gear ring of the inner gear to be measured by a mechanical arm in the radial direction, when the hard cylinder (1) approaches to a tooth profile infinitely, a spring (6) plays a buffering role, a round rod (5) is retracted, a position sensor (4) at the rear end senses that the mechanical arm stops advancing after the position is sensed, a distance from a measuring reference point to a measuring plane of the hard cylinder (1) is recorded as d1 by a laser range finder (2), the inner gear ring of the inner gear to be measured is rotated by the mechanical arm, ranging actions are circularly carried out by the mechanical arm, ranging values are recorded as d2 and d3 … … dn every certain number of teeth, and after a plurality of points are measured, all ranging values are calculated by a computer automatically, and the obtained maximum value and the minimum value are calculated by difference value, and are tooth surface runout values.
2. The slewing bearing radial clearance and tooth-surface runout detection method according to claim 1, characterized in that: the front end of the round rod (5) is tightly matched with the hard cylinder (1) through threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811318098.XA CN109506563B (en) | 2018-11-07 | 2018-11-07 | Slewing bearing radial clearance and tooth surface runout detection device and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811318098.XA CN109506563B (en) | 2018-11-07 | 2018-11-07 | Slewing bearing radial clearance and tooth surface runout detection device and method |
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| CN109506563A CN109506563A (en) | 2019-03-22 |
| CN109506563B true CN109506563B (en) | 2024-02-27 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110530306B (en) * | 2019-08-27 | 2020-10-20 | 大连理工大学 | Typical revolving body part characterization method based on actually measured run-out data |
| CN110567337A (en) * | 2019-09-28 | 2019-12-13 | 贵州群建精密机械有限公司 | detection device and detection method for gear ring bounce of large gear |
| CN116772680B (en) * | 2023-08-24 | 2023-11-24 | 四川名人居门窗有限公司 | Pulley runout tester and testing method |
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Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05296703A (en) * | 1991-04-23 | 1993-11-09 | Nissho Seiko Kk | Tooth form measurement device for internal gear |
| CN2618137Y (en) * | 2002-06-14 | 2004-05-26 | 北京中科恒业中自技术有限公司 | Cam spindle style comprehensive surface error determining instrument |
| CN1699919A (en) * | 2005-06-13 | 2005-11-23 | 吉林大学 | Surface Measuring Instrument |
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| CN105157630A (en) * | 2015-08-21 | 2015-12-16 | 大连理工大学 | Contact type measurement method having on-machine ultrasonic and automatic thickness-measurement function |
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| CN109506563A (en) | 2019-03-22 |
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