CN112392940B - Pretightening force adjusting device for speed reducer bearing - Google Patents
Pretightening force adjusting device for speed reducer bearing Download PDFInfo
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- CN112392940B CN112392940B CN202011047819.5A CN202011047819A CN112392940B CN 112392940 B CN112392940 B CN 112392940B CN 202011047819 A CN202011047819 A CN 202011047819A CN 112392940 B CN112392940 B CN 112392940B
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- bearing
- clamping mechanism
- dial indicator
- fixed
- adjusting screw
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
- F16H57/022—Adjustment of gear shafts or 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Mounting Of Bearings Or Others (AREA)
- Support Of The Bearing (AREA)
Abstract
The invention belongs to the technical field of bearing assembly, and relates to a pre-tightening force detection device for bearing installation of a speed reducer, in particular to a pre-tightening force adjusting device for a speed reducer bearing; the bearing mounting structure comprises a bearing to be mounted and a bearing seat, wherein the bearing is mounted in a mounting hole formed in the bearing seat, the bearing mounting structure comprises a clamping mechanism, an adjusting screw and a dial indicator, the clamping mechanism can be clamped and fixed with the mounting hole formed in the bearing seat, the adjusting screw and the dial indicator are respectively arranged in the clamping mechanism in a penetrating mode, the adjusting screw and the dial indicator are arranged at intervals, measuring rods of the adjusting screw and the dial indicator are parallel to each other, and the lower end portions of the adjusting screw and the measuring rod of the dial indicator are penetrated out from the bottom of the clamping mechanism and are pressed in the axial end face of the bearing to be mounted.
Description
Technical Field
The invention belongs to the technical field of bearing assembly, and relates to a pre-tightening force detection device for bearing installation of a speed reducer, in particular to a pre-tightening force adjusting device for a speed reducer bearing.
Background
With the severe shortage of labor and the annual rise of labor cost, the global robot industry is continuously promoted in the aspects of basic technology, market scale and enterprise intelligent transformation. As an indispensable core basic component for reliable and accurate operation of the robot, the RV reducer has important significance in the fields of China industrial automation and national defense. The novel cycloidal speed reducer is developed on the basis of the traditional cycloidal pin gear speed reducer and has a series of characteristics of compact structure, light weight, large transmission ratio, stable transmission, small vibration, low noise, high efficiency, long service life and the like. When the bearing is assembled, the pre-tightening force of the bearing for the crank shaft system has important influence on the comprehensive performance of the whole machine. In the traditional method, the method for adjusting and adjusting the pre-tightening force of the bearing for the crank shaft system is complex, labor-consuming and time-consuming, and a convenient bearing pre-tightening force adjusting device is urgently needed.
Disclosure of Invention
The invention provides a pretightening force adjusting device for a reducer bearing, which can be used for rapidly and accurately measuring the pretightening force of the bearing and solving the problem that the bearing force pretightening force is difficult to adjust in the process of assembling the RV reducer bearing.
The technical scheme adopted by the invention is as follows:
the utility model provides a pretightning force adjusting device for reduction gear bearing, includes the bearing and the bearing frame of treating the installation, the bearing is installed in the mounting hole of bearing frame inner system, its characterized in that: the clamping mechanism can be clamped and fixed with a mounting hole formed in a bearing seat, the adjusting screw and the dial indicator are respectively arranged in the clamping mechanism in a penetrating mode, the adjusting screw and the dial indicator are arranged at intervals, measuring rods of the adjusting screw and the dial indicator are parallel to each other, and the lower end portions of the adjusting screw and the measuring rod of the dial indicator penetrate out of the bottom of the clamping mechanism and are pressed in the axial end face of a bearing to be mounted.
Furthermore, a pressing block is integrally fixed at the lower end part of the adjusting screw.
Furthermore, the clamping mechanism is a two-section structure which is spliced left and right and comprises a fixed part and a movable part, the fixed part and the movable part are spliced to form a through hole, the adjusting screw penetrates through the through hole, and the upper end of the adjusting screw penetrates out of the upper end of the clamping mechanism.
Further, the movable portion and the fixed portion are respectively disposed radially outward of the adjustment screw.
Furthermore, the fixed part and the movable part are fixed by a fixing screw.
Furthermore, a claw is respectively arranged in the end face opposite to the lower end of the fixed part and the lower end of the movable part, and the two claws can be clamped and fixed with the inner edge of the mounting hole arranged on the bearing seat.
Furthermore, the dial indicator is arranged in the fixing part in a penetrating mode.
The invention has the advantages and positive effects that:
in the invention, a clamping mechanism, an adjusting screw and a dial indicator are matched to construct a novel pretightening force adjusting device. When the device is used, the device is fixed in a bearing seat of a bearing to be installed through a clamping mechanism, and at the moment, the adjusting bolt and the end part of the dial indicator measuring rod are in pressure-equalizing connection with the end face of the bearing to be installed; then, the pretightening force is adjusted by screwing the adjusting bolt to tightly press and connect the lower end part of the adjusting bolt with the end surface of the bearing; meanwhile, the variable quantity of the axial displacement of the adjusting bolt is the reading displayed by the dial indicator. And then the pretightening force of bearing installation can be displayed quantificationally, and then the proper bearing retainer ring is selected according to the reading.
In the invention, the pressing block arranged at the lower end part of the adjusting bolt can stably apply the pressure applied by the adjusting bolt to the axial end surface of the bearing from point to surface.
According to the invention, the clamping mechanism adopts a structure that the fixed part and the movable part are spliced left and right and are connected through the fixing screw, and the combined outer diameter is minimum under the tightening state of the fixing screw, so that the clamping mechanism can extend into the opening position of the bearing seat; after the bearing seat is stretched, the fixing screw is screwed to be in a loose state, at the moment, the hook claws arranged in the fixing part and the movable part can be clamped in the clamping grooves of the circlips for the holes in the bearing seat respectively, and then the radial position of the adjusting screw is fixed, so that the adjusting screw can stably and uniformly compress the bearing, and then the corresponding pretightening force is measured.
Drawings
FIG. 1 is a schematic diagram of the detection state of the present invention;
FIG. 2 is a partial cross-sectional view of a portion of the pretensioning adjusting device of FIG. 1.
Detailed Description
The present invention is further illustrated by the following examples, which are intended to be illustrative, not limiting and are not intended to limit the scope of the invention.
The invention discloses a pretightening force adjusting device for a bearing of a speed reducer, which comprises a bearing 1-3 to be installed and a bearing seat 1-2, wherein the bearing is installed in an installation hole manufactured in the bearing seat.
In this embodiment, a pressing block 2-4 is integrally fixed at the lower end of the adjusting screw.
In this embodiment, the clamping mechanism is a two-section structure that is spliced left and right, and includes a fixed portion 2-6 and a movable portion 2-2, the fixed portion and the movable portion are spliced to form a through hole, the adjusting screw penetrates through the through hole, and the upper end of the adjusting screw penetrates through the upper end of the clamping mechanism.
In this embodiment, the movable portion and the fixed portion are respectively disposed radially outward of the adjustment screw.
In this embodiment, the fixed portion and the movable portion are screwed and fixed by a fixing screw 2-3.
In the embodiment, the two hooks 2-7 are respectively arranged in the end faces of the fixed part and the movable part, which are opposite to each other at the lower ends, and the two hooks can be clamped and fixed with the inner edge of the mounting hole formed by the bearing seat.
In this embodiment, the dial indicator is inserted into the fixing portion.
The working process of the invention is as follows:
when the clamping mechanism is used, the clamping mechanism adopts a structure that the fixed part and the movable part are spliced left and right and is connected through the fixing screw, and the combined outer diameter is minimum under the state that the fixing screw is screwed down, so that the clamping mechanism can extend into the opening position of the bearing seat; after the adjusting screw is stretched, the fixing screw is screwed to be in a loose state, and at the moment, the claws arranged in the fixed part and the movable part can be respectively clamped in the clamping grooves of the circlips for the holes in the bearing seat, so that the radial position of the adjusting screw is fixed, the adjusting screw can stably and uniformly compress the bearing, and then the corresponding pretightening force is measured.
In the invention, a clamping mechanism is adopted, and the adjusting screw is matched with the dial indicator to construct a new pre-tightening force adjusting device. When the device is used, the device is fixed in a bearing seat of a bearing to be installed through a clamping mechanism, and at the moment, the adjusting bolt and the end part of the measuring rod of the dial indicator are connected to the end face of the bearing to be installed in a pressure equalizing mode; then, the pretightening force is adjusted by screwing the adjusting bolt to enable the lower end part of the adjusting bolt to be tightly pressed with the end surface of the bearing; meanwhile, the variable quantity of the axial displacement of the adjusting bolt is the reading displayed by the dial indicator. And then the pretightening force of bearing installation can be quantificationally displayed, and then the proper bearing retainer ring is selected according to the reading.
In the invention, the pressing block arranged at the lower end part of the adjusting bolt can stably apply the pressure applied by the adjusting bolt to the axial end surface of the bearing from point to surface.
Claims (6)
1. The utility model provides a pretightning force adjusting device for reduction gear bearing, includes the bearing and the bearing frame of treating the installation, the bearing is installed in the mounting hole of bearing frame inner system, its characterized in that: the clamping mechanism can be clamped and fixed with a mounting hole formed in a bearing seat, the regulating screw and the dial indicator are respectively arranged in the clamping mechanism in a penetrating mode, the regulating screw and the dial indicator are arranged at intervals, measuring rods of the regulating screw and the dial indicator are parallel to each other, and the lower end portions of the regulating screw and the measuring rod of the dial indicator penetrate out of the bottom of the clamping mechanism and are pressed in an axial end face of a bearing to be mounted; the clamping mechanism is a two-section structure which is spliced left and right and comprises a fixing part and a moving part, the fixing part and the moving part are spliced to form a through hole, the adjusting screw penetrates through the through hole, and the upper end part of the adjusting screw penetrates out of the upper end of the clamping mechanism.
2. The preload adjusting apparatus for a reducer bearing according to claim 1, wherein: and a pressing block is integrally fixed at the lower end part of the adjusting screw.
3. The preload adjusting apparatus for a reducer bearing according to claim 1, wherein: the movable part and the fixed part are respectively arranged at the radial outer side of the adjusting screw.
4. The preload adjusting apparatus for a reducer bearing according to claim 1, wherein: the fixed part and the movable part are fixed by a fixing screw.
5. The preload adjusting apparatus for a reducer bearing according to claim 1, wherein: and the two hooks can be clamped and fixed with the inner edge of the mounting hole formed by the bearing block.
6. The preload adjusting apparatus for a reducer bearing according to claim 1, wherein: the dial indicator is arranged in the fixing part in a penetrating mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011047819.5A CN112392940B (en) | 2020-09-29 | 2020-09-29 | Pretightening force adjusting device for speed reducer bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011047819.5A CN112392940B (en) | 2020-09-29 | 2020-09-29 | Pretightening force adjusting device for speed reducer bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112392940A CN112392940A (en) | 2021-02-23 |
| CN112392940B true CN112392940B (en) | 2022-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011047819.5A Active CN112392940B (en) | 2020-09-29 | 2020-09-29 | Pretightening force adjusting device for speed reducer bearing |
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| CN (1) | CN112392940B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1076695A1 (en) * | 1982-02-18 | 1984-02-29 | Всесоюзный научно-исследовательский институт горноспасательного дела | Device for sampling liquid from pipe-line |
| US5497559A (en) * | 1994-02-04 | 1996-03-12 | Nsk Ltd. | Method of measuring preload clearance in double row rolling bearing and apparatus therefore |
| CN201007641Y (en) * | 2007-01-30 | 2008-01-16 | 南京金城机械有限公司 | Axial clearance adjusting spacer thickness measurement instrument with elastic modulus bearing |
| CN102494586A (en) * | 2011-11-28 | 2012-06-13 | 浙江吉利汽车研究院有限公司 | Measuring tool and method used for measuring height from end surface of conical bearing outer ring to joint surface |
| CN204064177U (en) * | 2014-06-30 | 2014-12-31 | 洛阳博普轴承制造有限公司 | A kind of cylindrical roller bearing outer ring flange gauge measurement mechanism |
| CN106871765A (en) * | 2017-01-24 | 2017-06-20 | 杭州通绿机械有限公司 | A kind of cage window benchmark is high and window diameter cubing and its operating method |
| CN109724491A (en) * | 2018-11-12 | 2019-05-07 | 常州科兴铁路装备有限公司 | Angular contact ball bearing axial displacement measuring device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120246955A1 (en) * | 2011-03-30 | 2012-10-04 | Triseal Corporation | Bearing adjustment dial gage tool |
-
2020
- 2020-09-29 CN CN202011047819.5A patent/CN112392940B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1076695A1 (en) * | 1982-02-18 | 1984-02-29 | Всесоюзный научно-исследовательский институт горноспасательного дела | Device for sampling liquid from pipe-line |
| US5497559A (en) * | 1994-02-04 | 1996-03-12 | Nsk Ltd. | Method of measuring preload clearance in double row rolling bearing and apparatus therefore |
| CN201007641Y (en) * | 2007-01-30 | 2008-01-16 | 南京金城机械有限公司 | Axial clearance adjusting spacer thickness measurement instrument with elastic modulus bearing |
| CN102494586A (en) * | 2011-11-28 | 2012-06-13 | 浙江吉利汽车研究院有限公司 | Measuring tool and method used for measuring height from end surface of conical bearing outer ring to joint surface |
| CN204064177U (en) * | 2014-06-30 | 2014-12-31 | 洛阳博普轴承制造有限公司 | A kind of cylindrical roller bearing outer ring flange gauge measurement mechanism |
| CN106871765A (en) * | 2017-01-24 | 2017-06-20 | 杭州通绿机械有限公司 | A kind of cage window benchmark is high and window diameter cubing and its operating method |
| CN109724491A (en) * | 2018-11-12 | 2019-05-07 | 常州科兴铁路装备有限公司 | Angular contact ball bearing axial displacement measuring device |
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| CN112392940A (en) | 2021-02-23 |
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