CN109187020B - Rapid detection method for friction torque of turntable bearing - Google Patents
Rapid detection method for friction torque of turntable bearing Download PDFInfo
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- CN109187020B CN109187020B CN201811284167.XA CN201811284167A CN109187020B CN 109187020 B CN109187020 B CN 109187020B CN 201811284167 A CN201811284167 A CN 201811284167A CN 109187020 B CN109187020 B CN 109187020B
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- friction torque
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- torque
- turntable bearing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0009—Force sensors associated with a bearing
Abstract
A method for quickly detecting friction torque of a rotary table bearing uses a set of detection device, the detection device with combination performance can be quickly detected only by being mutually connected with the rotary table bearing, the starting friction torque and the rotating friction torque of the rotary table bearing can be quickly detected through a digital display torque wrench under the cooperation of the detection device, the detected starting friction torque and the detected rotating friction torque are more accurate, and can be compared with the designed starting friction torque and the designed rotating friction torque to see whether the friction torque meets the technical requirements or not, and the detection efficiency of the friction torque of the rotary table bearing is greatly improved.
Description
Technical Field
The invention belongs to the technical field of bearing detection, and particularly relates to a method for rapidly detecting friction torque of a bearing of a rotary table.
Background
The friction torque is an important index for evaluating the dynamic performance of the turntable bearing, and with the continuous improvement of the performance requirements of the precision turntable bearing in recent years, scientific and objective judgment of the friction resistance of the turntable bearing through the friction torque is the key point of bearing industry research.
At present, the friction torque is detected in the assembling process of the turntable bearing through indirect measurement, indirect measurement data are obtained through calculation, the accuracy of the friction torque data obtained through calculation is low, and the subsequent assembly and use of the turntable bearing are affected.
The direct measurement of the friction torque has limitations on the overall dimension of the precision turntable bearing, and the limitations affect the assembly progress and the detection efficiency of the turntable bearing.
Disclosure of Invention
In order to overcome the defects, the invention provides a method for rapidly detecting the friction torque of the turntable bearing, the method can reduce the problem that the friction torque of the turntable bearing is difficult to detect in the assembling process through a detection device, and the starting friction torque and the rotating friction torque of the turntable bearing can be rapidly detected through the organic matching of the whole set of rapid detection device and a torque wrench, so that a technical basis is provided for qualified turntable bearings.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for rapidly detecting friction torque of a rotary table bearing uses a set of detection device, the detection device comprises a digital display torque wrench, a support plate, a support bolt, a pressure plate, a bottom plate, a fixing bolt and an outer hexagon bolt, the rotary table bearing comprises an inner ring and an outer ring, the inner ring is of a split structure and is provided with a plurality of inner connecting holes with the same radius, the outer ring is provided with a plurality of outer connecting holes with the same radius, the radius of the outer connecting holes is larger than that of the inner connecting holes, and the friction torque of the rotary table bearing comprises starting friction torque and rotating friction torque, and the method is characterized in that:
a plurality of internal thread holes are formed in the disc-shaped bottom plate according to the radius of the internal connecting holes, the outer diameter of the bottom plate is larger than that of the outer ring, a plurality of internal through holes are formed in the disc-shaped pressing plate according to the radius of the internal connecting holes, the outer diameter of the pressing plate is equal to that of the inner ring, four internal through holes are symmetrically formed in the two ends of the long-strip-shaped supporting plate according to the radius of the external connecting holes, the length of the supporting plate is larger than that of the outer ring, the inner ring of the split structure is horizontally placed at the upper end of the bottom plate, the pressing plate is; then, respectively penetrating supporting bolts into four inner through holes of the supporting plate, respectively connecting and fixing the supporting bolts on the supporting plate through four nuts, respectively penetrating the four supporting bolts through the outer connecting holes, fixedly connecting the upper end and the lower end of the outer ring through eight nuts, screwing and connecting an outer hexagon bolt at the center of the supporting plate, and finally sleeving a digital display torque wrench on the outer hexagon bolt;
the process of rapidly detecting the friction torque of the turntable bearing after the conditions are met is as follows: the upper end face and the lower end face of the inner ring are used as positioning references and are connected and fixed, the outer ring can rotate relative to the inner ring, the outer hexagon bolt is connected to the center of the supporting plate through clockwise screwing, so that the digital display torque wrench also rotates clockwise, the starting friction torque of the turntable bearing can be read through the digital display torque wrench at the initial stage of clockwise rotation of the digital display torque wrench, namely when the inner ring fixed relative to the outer ring does not rotate, the rotating friction torque of the turntable bearing can be read through the digital display torque wrench when the inner ring fixed relative to the outer ring rotates, and therefore the rapid detection of the friction torque of the turntable bearing is completed.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
1. the use detection device is a set of combined device, the detection device can be connected with the turntable bearing to implement rapid detection, and the friction torque of the turntable bearing can be rapidly detected through the assembly of the detection device.
2. The digital display torque wrench can be used for rapidly detecting the starting friction torque and the rotating friction torque of the rotary table bearing under the cooperation of the detection device, the detected starting friction torque and the detected rotating friction torque are accurate, and can be compared with the designed starting friction torque and the designed rotating friction torque to see whether the requirements of the technology are met, so that the detection efficiency is greatly improved.
Drawings
FIG. 1 is a schematic diagram of the main sectional structure of the present invention.
Fig. 2 is a schematic diagram of the top view structure of fig. 1.
In the above figures: 01-digital display torque wrench, 02-support plate, 03-support bolt, 04-pressure plate, 05-inner ring, 06-bottom plate, 07-fixing bolt, 08-outer ring and 09-outer hexagon bolt.
Detailed Description
The invention relates to a method for rapidly detecting the friction torque of a turntable bearing, which can reduce the problem that the friction torque of the turntable bearing is difficult to detect in the assembling process through a detection device, and can rapidly detect the starting friction torque and the rotating friction torque of the turntable bearing through the organic matching of the detection device and a torque wrench.
The turntable bearing comprises an inner ring 05 and an outer ring 08, wherein the inner ring is of a split structure and is provided with a plurality of inner connecting holes with the same radius, the outer ring is provided with a plurality of outer connecting holes with the same radius, the radius of each outer connecting hole is larger than that of each inner connecting hole, and the friction torque of the turntable bearing comprises starting friction torque and rotating friction torque.
With reference to fig. 1-2, the present invention uses a set of detection device, which includes a digital display torque wrench 01, a support plate 02, a support bolt 03, a pressure plate 04, a bottom plate 06, a fixing bolt 07, and an outer hexagon bolt 09. It should be noted that: the detection device is a set of combined device, the detection device must be connected with the turntable bearing to implement rapid detection, and the connection mode of the related detection device and the turntable bearing is referred to the technical scheme and is not described in detail.
The upper end face and the lower end face of the inner ring are used as positioning references and are connected and fixed through organic matching of the detection device and the rotary table bearing, the outer ring can rotate relative to the inner ring, the outer hexagon bolt is connected to the center of the supporting plate through clockwise screwing, the digital display torque wrench also needs to rotate clockwise, the starting friction torque of the rotary table bearing can be read through the digital display torque wrench at the initial stage of clockwise rotation of the digital display torque wrench, namely when the inner ring relatively fixed to the outer ring does not rotate, the rotating friction torque of the rotary table bearing can be read through the digital display torque wrench when the inner ring relatively fixed to the outer ring rotates, and the rapid detection of the friction torque of the rotary table bearing is completed.
Although the detection device is not complicated, the starting friction torque and the rotating friction torque of the turntable bearing can be rapidly detected through the digital display torque wrench under the matching of the detection device, and the generated effect is obvious to the skilled person.
Claims (1)
1. The utility model provides a quick detection method of revolving stage bearing friction torque, this method uses a set of detection device, detection device contains digital display torque spanner (01), backup pad (02), stay bolt (03), clamp plate (04), bottom plate (06), fixing bolt (07) and outer hexagon bolt (09), and revolving stage bearing contains inner circle (05) and outer lane (08), and the inner circle is the components of a whole that can function independently structure and has the inside connection hole of several the same radius, and the outer lane has the several outside connection hole of the same radius, outside connection hole radius is greater than inside connection hole radius, revolving stage bearing friction torque contains start-up friction torque and rotational friction torque, characterized by:
a plurality of internal thread holes are formed in the disc-shaped bottom plate according to the radius of the internal connecting holes, the outer diameter of the bottom plate is larger than that of the outer ring, a plurality of internal through holes are formed in the disc-shaped pressing plate according to the radius of the internal connecting holes, the outer diameter of the pressing plate is equal to that of the inner ring, four internal through holes are symmetrically formed in the two ends of the long-strip-shaped supporting plate according to the radius of the external connecting holes, the length of the supporting plate is larger than that of the outer ring, the inner ring of the split structure is horizontally placed at the upper end of the bottom plate, the pressing plate is; then, respectively penetrating supporting bolts into four inner through holes of the supporting plate, respectively connecting and fixing the supporting bolts on the supporting plate through four nuts, respectively penetrating the four supporting bolts through the outer connecting holes, fixedly connecting the upper end and the lower end of the outer ring through eight nuts, screwing and connecting an outer hexagon bolt at the center of the supporting plate, and finally sleeving a digital display torque wrench on the outer hexagon bolt;
the process of rapidly detecting the friction torque of the turntable bearing after the conditions are met is as follows: the upper end face and the lower end face of the inner ring are used as positioning references and are connected and fixed, the outer ring can rotate relative to the inner ring, the outer hexagon bolt is connected to the center of the supporting plate through clockwise screwing, so that the digital display torque wrench also rotates clockwise, the starting friction torque of the turntable bearing can be read through the digital display torque wrench at the initial stage of clockwise rotation of the digital display torque wrench, namely when the inner ring fixed relative to the outer ring does not rotate, the rotating friction torque of the turntable bearing can be read through the digital display torque wrench when the inner ring fixed relative to the outer ring rotates, and therefore the rapid detection of the friction torque of the turntable bearing is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811284167.XA CN109187020B (en) | 2018-10-31 | 2018-10-31 | Rapid detection method for friction torque of turntable bearing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811284167.XA CN109187020B (en) | 2018-10-31 | 2018-10-31 | Rapid detection method for friction torque of turntable bearing |
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| Publication Number | Publication Date |
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| CN109187020A CN109187020A (en) | 2019-01-11 |
| CN109187020B true CN109187020B (en) | 2020-05-19 |
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| CN201811284167.XA Active CN109187020B (en) | 2018-10-31 | 2018-10-31 | Rapid detection method for friction torque of turntable bearing |
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| CN109916541A (en) * | 2019-02-28 | 2019-06-21 | 河南科技大学 | A kind of turntable bearing frictional torque testing machine |
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| DE102008061553B4 (en) * | 2008-12-11 | 2018-03-01 | Prüftechnik Dieter Busch AG | Method and device for dynamically measuring the radial deformation of a rolling bearing ring |
| CN102032848B (en) * | 2010-12-02 | 2012-06-13 | 洛阳轴研科技股份有限公司 | Method for detecting multiple technical indexes of turntable bearing by using detecting platform |
| CN202176615U (en) * | 2011-06-28 | 2012-03-28 | 洛阳轴研科技股份有限公司 | Combined turntable bearing |
| CN205533784U (en) * | 2016-01-30 | 2016-08-31 | 河北省轴承产业技术研究院 | High -speed biserial tapered roller revolving stage bearing |
| CN105716770A (en) * | 2016-04-14 | 2016-06-29 | 燕山大学 | Calibration device for simulating friction moment of spaceflight bearing under zero gravity |
| CN206017449U (en) * | 2016-07-29 | 2017-03-15 | 洛阳鸿元轴承科技有限公司 | A kind of harmonic wave speed reducing machine compact crossed roller bearing |
| CN206974584U (en) * | 2017-05-12 | 2018-02-06 | 如皋市非标轴承有限公司 | The reverse torque detecting apparatus of unilateral bearing |
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