CN201666354U - Slewing bearing with adjustable gear meshing center distance - Google Patents
Slewing bearing with adjustable gear meshing center distance Download PDFInfo
- Publication number
- CN201666354U CN201666354U CN2010201643937U CN201020164393U CN201666354U CN 201666354 U CN201666354 U CN 201666354U CN 2010201643937 U CN2010201643937 U CN 2010201643937U CN 201020164393 U CN201020164393 U CN 201020164393U CN 201666354 U CN201666354 U CN 201666354U
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- CN
- China
- Prior art keywords
- pivoting support
- ring
- gear
- mounting hole
- slewing bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a slewing bearing with an adjustable gear meshing center distance. The slewing bearing comprises a supporting ring without a gear ring and a supporting ring with a gear ring, wherein the two supporting rings are matched with each other and the center of a mounting hole of the supporting ring without the gear ring and the center of the slewing bearing have an eccentric distance (e). The slewing bearing can adjust the center distance between small gears on a main machine and the supporting ring with the gear ring of the slewing bearing, solving the problem of reutilization of a frame of the main machine with an ultra-poor position degree of the mounting hole and further achieving the purposes of reducing the difficulty in processing the main machine and enhancing the working performance and the service life of the slewing bearing.
Description
Technical field
The utility model relates to a kind of gear engagement adjustable center distance formula pivoting support.
Background technique
When pivoting support is installed on the main frame, be that the mounting hole of main frame and the mounting hole of pivoting support are got up with Bolt Connection.In order to guarantee the engagement that the gear ring bearing ring is arranged and the operation of main frame small gear and pivoting support, both centre distance should be correct, and need to guarantee certain backlash value.Usually adjust both centre distance by the gap of bolt and mounting hole, and then reach the purpose that guarantees the gear engagement backlash values, but regulated quantity is extremely limited.Should guarantee the correct installation of main frame and pivoting support, keep as much as possible again under the situation of adjustment amount of gear engagement centre distance that the position of mounting hole degree of main frame and pivoting support is required must be very high.And main frame adopts the plate of moderate thickness weldment more, very easily lose the positional accuracy of mounting hole in the course of working because of distortion, difficulty of processing is big, need to use high-precision numerical control machine or numerical control machining center processing, operator must possess certain numerical control professional knowledge and numerical control programming ability, otherwise easily process waste product, cause product cost to increase.And along with the lasting use of pivoting support, gear wear has caused the increase of backlash, because meshed center distance can't be regulated, make and to regulate the value added that compensates backlash once more, cause mesh impact to continue to increase, the working condition of pivoting support sharply worsens, and has shortened the pivoting support operating life greatly, has increased user cost.
Summary of the invention
Problem to be solved in the utility model provides a kind of gear engagement adjustable center distance formula pivoting support, and it can adjust the small gear on the main frame and the centre distance that the gear ring bearing ring is arranged of pivoting support.What this pivoting support had solved the overproof main frame of position of mounting hole degree utilizes problem again, and then finally reaches and reduce the main frame difficulty of processing, improves the pivoting support service behaviour and the purpose in working life
Gear engagement adjustable center distance formula pivoting support of the present utility model is formed by the no gear ring bearing ring of working in coordination with by the gear ring bearing ring, does not wherein have the center of mounting hole distribution circle of gear ring bearing ring and the center of pivoting support one eccentric distance e is arranged.
The beneficial effect of pivoting support of the present utility model is mainly reflected in following two aspects:
(1) compares with common pivoting support, gear engagement adjustable center distance formula pivoting support has relaxed the tolerance range of frame mounting hole and small gear spacing, reduced difficulty of processing, be that frame mounting hole and small gear spacing add man-hour according to theoretical value, if machining error is bigger, also can install and realize compensation reducing the frame reject rate by the transposition of pivoting support.Relaxing of the tolerance range of frame mounting hole and small gear spacing also reduced the requirement to personnel and equipment, reduces the input of fixed assets, greatly reduced cost of production;
(2) common pivoting support is when installing and using, and the regulated quantity of meshed center distance can only lean on bolt and mounting hole gap to guarantee that regulated quantity is extremely limited.After adopting can regulate meshed center distance formula pivoting support, can increase the regulation range of gear engagement centre distance greatly, guarantee that sideshake can be adjusted to optimum value between big small gear.Behind the gear wear,, readjust gear engagement centre distance, make the gear meshing state remain on the best, and then improve the working condition of pivoting support, improve the service behaviour and the life-span of pivoting support by will there not being the mounting type of gear ring transposition.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is done further detailed introduction:
Fig. 1 is that inner ring of the present utility model is the scheme of installation of the pivoting support of gear ring;
Fig. 2 is that inner ring of the present utility model is the mesh schematic representation of the pivoting support of gear ring;
Fig. 3 is that outer ring of the present utility model is the scheme of installation of the pivoting support of gear ring;
Fig. 4 is that outer ring of the present utility model is the mesh schematic representation of the pivoting support of gear ring.
Embodiment
Gear engagement adjustable center distance formula pivoting support of the present utility model is to change the center of the center of the distribution circle of the mounting hole of no gear ring bearing ring in internal gear type, the external tooth type pivoting support and whole pivoting support into eccentric design by original coaxial design, offset is e, and this structure is applicable to all tooth-like pivoting supports that has.
One, be that example describes with the excavator pivoting support:
From Fig. 1, Fig. 2 as can be known, excavator is no gear ring with the outer ring 3 of pivoting support, and inner ring 6 is for there being gear ring.Inner ring 6 is fixing, and rotation motion is done around raceway in outer ring 3; Chassis of dredging machine part 1 links to each other with pivoting support inner ring 6 by connecting bolt 2, and excavator upper stand 4 links to each other with pivoting support outer ring 3 by connecting bolt 2, and revolution driving pinion 5 is meshed with pivoting support inner ring 6.
Wherein between 3 mounting hole distribution circle centers 7, outer ring and the pivoting support center 8 eccentric distance e is arranged, the offset of outer ring mounting hole distribution circle and outer ring raceway just, R is the mounting hole distribution circle radius of pivoting support outer ring 3; L is the distance between revolution driving pinion 5 and pivoting support outer ring 3 mounting holes; A is the meshed center distance of revolution driving pinion 5 with pivoting support inner ring 6.
The standard pitch circle of the outer ring mounting hole distribution circle of common pivoting support, mounting hole distribution circle, raceway and the gear of inner ring has strict coaxality requirement, pivoting support outer ring mounting hole distribution circle diameter is a definite value, because the relative position of revolution driving pinion and upper stand mounting hole is fixing, and the mounting hole of frame mounting hole and pivoting support outer ring is corresponding, so the distance L between small gear and pivoting support outer ring mounting hole is fixed, to satisfy the meshed center distance a between gear.
And pivoting support of the present utility model be the mounting hole distribution circle that will have outer ring 3 in the tooth-like pivoting support promptly not have a gear ring bearing ring with raceway coaxial change into have certain eccentric amount e after, the ultimate range at the mounting hole of no gear ring bearing ring and pivoting support center is R+e, because the L value is fixed, then the small gear 5 of revolution driving and the inner ring 6 of pivoting support promptly have the meshed center distance of gear ring bearing ring to become a+e; The minimum range at the mounting hole of no gear ring bearing ring and pivoting support center is R-e, because the L value is fixed, then the small gear of revolution driving and the meshed center distance that the gear ring bearing ring is arranged of pivoting support become a-e.So, after there are eccentric amount e in the mounting hole distribution circle of no gear ring bearing ring and pivoting support center, the small gear on the main frame with have the meshed center distance of gear ring bearing ring to become and can in a-e to a+e scope, regulate by fixed value a.Wherein the optimum span of eccentric amount e is: 0～20mm.
Two, changeing supporting with tool for crane is that example describes:
From Fig. 3, Fig. 4 as can be known, the inner ring 13 that tool for crane changes supporting is no gear ring, and outer ring 16 is for there being gear ring.Outer ring 16 is fixing, and inner ring 13 is done rotation motion around raceway; Hoist chassis portion 11 links to each other with pivoting support outer ring 16 by connecting bolt 12, and hoist upper stand 14 links to each other with pivoting support inner ring 13 by connecting bolt 12, and revolution driving pinion 15 is meshed with pivoting support outer ring 16.
Wherein between inner ring 13 mounting hole distribution circle centers 17 and the pivoting support center 18 eccentric distance e is arranged, the offset of inner ring mounting hole distribution circle and inner ring raceway just, R ' is the mounting hole distribution circle radius of pivoting support inner ring 13; L ' is the distance between revolution driving pinion 15 and pivoting support inner ring 13 mounting holes; A ' is the meshed center distance of revolution driving pinion 15 with pivoting support outer ring 16.
Claims (1)
1. a gear engagement adjustable center distance formula pivoting support is formed by the no gear ring bearing ring of working in coordination with by the gear ring bearing ring, it is characterized in that: wherein do not have the center of mounting hole distribution circle of gear ring bearing ring and the center of pivoting support one throw of eccentric (e) is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201643937U CN201666354U (en) | 2010-04-20 | 2010-04-20 | Slewing bearing with adjustable gear meshing center distance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201643937U CN201666354U (en) | 2010-04-20 | 2010-04-20 | Slewing bearing with adjustable gear meshing center distance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201666354U true CN201666354U (en) | 2010-12-08 |
Family
ID=43267314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201643937U Expired - Lifetime CN201666354U (en) | 2010-04-20 | 2010-04-20 | Slewing bearing with adjustable gear meshing center distance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201666354U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813178A (en) * | 2010-04-20 | 2010-08-25 | 马鞍山统力回转支承有限公司 | Slewing bearing with adjustable gear meshing center distance and machining method thereof |
| CN105607024A (en) * | 2016-03-23 | 2016-05-25 | 吉林大学 | Polarized wire grating rotating platform for microwave radiometer calibration source |
-
2010
- 2010-04-20 CN CN2010201643937U patent/CN201666354U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813178A (en) * | 2010-04-20 | 2010-08-25 | 马鞍山统力回转支承有限公司 | Slewing bearing with adjustable gear meshing center distance and machining method thereof |
| CN105607024A (en) * | 2016-03-23 | 2016-05-25 | 吉林大学 | Polarized wire grating rotating platform for microwave radiometer calibration source |
| CN105607024B (en) * | 2016-03-23 | 2018-03-27 | 吉林大学 | Calibration of Microwave Radiometer source polarization wiregrating rotation platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101208 |