CN103603866B - Z-type rotary supporting device - Google Patents
Z-type rotary supporting device Download PDFInfo
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- CN103603866B CN103603866B CN201310638857.1A CN201310638857A CN103603866B CN 103603866 B CN103603866 B CN 103603866B CN 201310638857 A CN201310638857 A CN 201310638857A CN 103603866 B CN103603866 B CN 103603866B
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- raceway
- race
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- roller
- ball
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Abstract
The invention discloses a kind of Z-type rotary supporting devices, including upper and lower seat ring, ball, roller and pressure ring, the axis of top race and bottom race overlaps, and upper and lower seat ring is nested together by the cascaded surface to contact with each other, and two opposite Z-shapeds are formed on the vertical section for crossing axis；Upper, middle and lower ring raceway is equipped with from top to bottom between upper and lower seat ring, and it is equipped with upper raceway roller, ball and lower raceway roller successively respectively, upper and lower ring raceway is respectively equipped with the opposite inclination angle in direction, the top of upper raceway roller is equipped with pressure ring, top race presses closer screw equipped with multiple for fixed pressure ring, and the outer surface of top race or the inner surface of bottom race are provided with the gear teeth.The present invention makes pivoting support still have the very strong ability for bearing radial direction and direction load of toppling while the axial carrying capacity of pivoting support is substantially increased；And pivoting support has certain self-adjusting gap function, improves the precision of pivoting support, enhances its stability, reduce noise.
Description
Technical field
The present invention relates to a kind of supportings of novel rotation, especially relate to the support of large-scale full circle swinging dumping plough and revolution dress
It puts.
Background technology
Pivoting support is a kind of big profile shaft that can bear larger axial load, radial load and tilting moment simultaneously
It holds, can realize the multiple functions such as the support to structure important component, rotation, transmission.With China's expanding economy, it is big
Using more and more extensive in the equipment such as type handling machinery, digger, constructional engineering machinery, harbour machinery.
At present, the pivoting support of China's production is most of or using rolling bearing rolling element-rollaway type structure, structure
Form mainly has single-row ball type, single crossed pin roller type, double ball-type, four kinds of three organ timbering formula.Single-row ball type, double ball-type are born
Radial capacity is stronger, but axial carrying capacity is weaker, and using the point contact raceway of steel ball as support, supports contact point
It is few, there is the shortcomings that force unbalance, and run unstable, high noise；Single crossed pin roller type radial direction bearing capacity is strong,
Revolution is more steady, but axial carrying capacity and resistance to tipping moment ability are smaller；Although three organ timbering formula comprehensive load capacities are strong, system
Complex process is made, it is expensive, it replaces difficult in maintenance.
The content of the invention
For the above-mentioned prior art, the present invention provides a kind of Z-type rotary supporting device, and axial, radial direction bearing capacity height resists
Tilting moment ability is strong, and manufacturing process is simple, and replacement is easy to maintain, and at low cost, Z-type rotary supporting device of the present invention is to roll back
Turn supporting, and pivoting support precision is high, operates steadily, low noise.
In order to solve the above-mentioned technical problem, a kind of Z-type rotary supporting device of the present invention, including top race, bottom race, rolling
The axis of pearl, roller and pressure ring, the top race and bottom race overlaps, and the top race and the bottom race pass through phase mutual connection
Tactile cascaded surface nests together, and two opposite Z-shapeds are formed on the vertical section for crossing axis；The top race and bottom race
Between be equipped with upper ring raceway, intermediate annular raceway and lower ring raceway from top to bottom, upper rolling is equipped in the upper ring raceway
Road roller, the lower ring raceway is interior to be equipped with lower raceway roller, and ball is equipped in the intermediate annular raceway, and the upper annular is rolled
Road and lower ring raceway are respectively equipped with the opposite inclination angle in direction, and the top of the upper raceway roller is equipped with pressure ring, the seat of honour
The upper surface of circle is equipped with multiple screws that press closer for fixed pressure ring, and the bottom race is equipped with ball handling hole and handling hole is close
Block and circular cone positioning pin are sealed, the upper ring raceway, intermediate annular raceway and lower ring raceway are respectively equipped with lubrication and sealing
Structure；The inner surface of the outer surface of the top race or the bottom race is provided with the gear teeth.
Compared with prior art, the beneficial effects of the invention are as follows：
Pivoting support and the prior art of the present invention is the difference is that present invention employs horizontal upper and lower double rollings
Pillar raceway makes upper and lower ring raceway come into full contact with stress by pressure ring, is longitudinally arranged different from pervious more raceways, increases
The contact line number of load is born in longitudinal direction, substantially increases the axial carrying capacity of pivoting support.It is rolled additionally by intermediate annular
The ball-type raceway in road makes pivoting support equally have the very strong ability for bearing radial direction and direction load of toppling.
The raceway of two rollers has opposite small angle of inclination in the present invention, make pivoting support have it is certain from
Gap function is adjusted, the precision of pivoting support is improved, optimizes the stress of rolling element up and down, make inner ring（Bottom race 2）
And outer ring（Top race 1）Reasonable stress enhances the stability of pivoting support, reduces noise.
Description of the drawings
Fig. 1 is the structure sectional view of Z-type rotary supporting device embodiment one of the present invention；
Fig. 2 is the structure sectional view of Z-type rotary supporting device embodiment two of the present invention.
In figure：1- top races, 2- bottom races, 3- pressure rings, 4- holding screws, the upper raceway rollers of 5-, raceway roller under 6-, 7-
Ball, 8- handling sealing blocks, 9- circular cone positioning pins, 10- sealing strips, 11- sealing rings, 12- oil nozzles, 13- top race installation bolts
Hole, 14- bottom race installation bolts hole.
Specific embodiment
The present invention is described in further detail With reference to embodiment.
As depicted in figs. 1 and 2, a kind of Z-type rotary supporting device of the present invention, including top race 1, bottom race 2, ball 7, rolling
Column 5,6 and pressure ring 3.
The axis of the top race 1 and bottom race 2 overlaps, and the top race 1 and the bottom race 2 are by contacting with each other
Cascaded surface nests together, and two opposite Z-shapeds are formed on the vertical section for crossing axis, i.e., upper and lower seat ring passes through two phases
To " Z " type structure fitting together, compared with the pivoting support convenient disassembly of other structures form, replace easy to maintain.
Upper ring raceway, intermediate annular raceway and lower annular rolling are equipped between the top race 1 and bottom race 2 from top to bottom
Road, i.e. the corner of wherein 2 inner ring of top race 1 and bottom race has all been opened up with slight oblique angle annular right-angle slot, fitting
Afterwards, the annular roller path that upper and lower two cross sectional shapes are rectangle is formed；Lower raceway roller 6 is equipped in the lower ring raceway,
The Race Line Contact that lower 6 side of raceway roller is directly formed with upper and lower seat ring；Upper raceway roller is equipped in the upper ring raceway
5, the top of the upper raceway roller 5 is equipped with pressure ring 3, and the upper surface of the top race 1 is used for the tight of fixed pressure ring 3 equipped with multiple
Screw 4, the side of upper raceway roller 5 are then contacted with pressure ring, bottom race line, and pressure ring 3 is adjusted by the holding screw 4 on top race
Whole gap makes upper and lower raceway roller that can come into full contact with stress；Intermediate annular raceway is arranged on 2 fitting of top race 1 and bottom race
On the vertical plane at place, ball 7 is equipped in the intermediate annular raceway, ball 7 is distributed in intermediate annular raceway, per adjacent
There is ball spacing block between ball；The bottom race 2 is circumferentially with ball handling hole and handling hole sealing block 8 and paniculidine
Position pin 9, the axial taper location hole that the handling sealing block 8 is equipped with 1 top surface of top race, above-mentioned circular cone positioning pin 9 is filled
It fits in the taper location hole, handling hole sealing block 8 is fixed on the correct position in bottom race 2 by circular cone positioning pin 9.
The upper ring raceway and lower ring raceway are respectively equipped with the certain minute angle of the opposite inclination in direction so that
Upper and lower ring raceway inclined direction is opposite, and contact can be more and more closer so when stress increases, and avoids local pressure, makes rolling
Kinetoplast being more uniformly stressed up and down.
The upper ring raceway, intermediate annular raceway and lower ring raceway are respectively equipped with lubrication and sealing structure.It is described
Lubrication system is made of oilhole, oil duct and oil nozzle, i.e. is both provided with oiling at each raceway of the top race 1 and bottom race 2
Hole, one end of oil filler point are communicated with raceway, and the other end is communicated with the outer surface of top race 1 and the inner surface of bottom race 2, and is set
There is oil nozzle, convenient for grease up.The sealing structure includes sealing ring 11 and sealing strip 10, and the sealing ring is arranged on described
Between top race 1 and the bottom race 2 and at the lower ring raceway periphery；The sealing strip 10 is inlaid in the pressure ring
Between the upper surface of 3 inner surface and the bottom race 2.Sealing ring 11 and sealing strip 10 can be sealed raceway, play
The effect for preventing dust and other impurities from entering raceway and preventing lubricant grease from leaking.
Installation screw 13,14 is equipped on the top race 1 and the bottom race 2, to install slewing equipment and pedestal.
Pivoting support and the prior art of the present invention is the difference is that present invention employs horizontal upper and lower double rollings
Pillar raceway makes upper and lower ring raceway come into full contact with stress, is longitudinally arranged different from pervious more raceways by adjustment pressure ring,
The contact line number that load is born in longitudinal direction is added, substantially increases the axial carrying capacity of pivoting support.Additionally by intermediate ring
The ball-type raceway of shape raceway makes pivoting support equally have the very strong ability for bearing radial direction and direction load of toppling.
And raceway has small angle of inclination, and pivoting support is made to have certain self-adjusting gap function, is improved back
Turn the precision of supporting, optimize the stress of rolling element up and down, make inner ring（Bottom race 2）And outer ring（Top race 1）Stress is closed
Reason, enhances the stability of pivoting support, reduces noise.
Embodiment one：Z-type pivoting support as shown in Figure 1, suitable for severe duty.Its structure mainly by top race 1, under
Seat ring 2, pressure ring 3, holding screw 4, ball 7, upper raceway roller 5, lower raceway roller 6, handling sealing block 8, circular cone positioning pin 9,
Sealing strip 10, sealing ring 11 are formed.Top race 1, bottom race 2 by two opposite " Z " type structure fittings together, and the seat of honour
Circle 1, the axis of bottom race 2 overlap；Upper and lower roller raceway and the rolling of intermediate ball formula are formed after top race 1,2 fitting of bottom race
Road, upper and lower ring raceway contact with the line of raceway by roller by upper raceway roller 5, lower raceway roller 6 respectively and bear to carry
Lotus, and upper and lower ring raceway adds into lateral arrangement while bears the contact line number of load.Pass through the tightening on top race
Screw 4 come adjust pressure ring 3 make upper and lower ring raceway roller can contact, and upper and lower ring raceway tilts small angle
Degree, not only enhances the radial direction bearing capacity of pivoting support, and optimizes upper raceway roller 5 and the rolling of lower raceway in pivoting support
The Stress property up and down of column 6 improves the precision of Z-type pivoting support.Intermediate annular raceway relies on the point contact of ball 7
Come substantial radial load and tilting moment.3 oil filler points are equipped with altogether on upper and lower seat ring 1, and oil nozzle 12 is installed, and are being needed
When lubricating grease is added into raceway, shot lubrication fat is just carried out into raceway from oil nozzle 12, to ensure that there is abundance in raceway
Lubricating grease, reduce the abrasion between rolling element and raceway, make body revolution smooth, extend raceway service life.In top race 1
Surface is additionally provided with ball mounting hole, and handling sealing block 8 is provided in ball mounting hole, facilitates the clean and maintenance of ball；Handling
Sealing block 8 realizes positioning, sealing by circular cone positioning pin 9；After ball is removed, we can be very easily by top race 1
It is disassembled with bottom race 2, so as to fulfill the clean and maintenance to upper and lower ring raceway and roller.Upper ring raceway opening is equipped with
Upper sealing strip 10, lower ring raceway opening are equipped with sealing ring 11, and sealing strip 10 and sealing ring 11 can be sealed raceway,
Playing prevents the lubricating grease leakage in raceway and dust-proof effect；Sealing strip 10 is embedded in the annular groove of pressure ring 3, sealing ring
11 are embedded in the annular groove of bottom race 2.In use, pivoting support is fixed on using the installation bolt hole 14 on bottom race 2
On the pedestal of equipment, top race 1 connects pivoting part by installation bolt hole 13, passes through the gear teeth and driving device of top race 1
Gear drive is connected to form, driving top race 1 rotates, so that pivoting part rotates.
Embodiment two：Z-type pivoting support as shown in Figure 2, structure and embodiment one are essentially identical, suitable for heavily loaded work
Condition.It is a difference in that the inner surface of bottom race 2 is toothed around, gear drive is connected to form by the gear teeth and driving device, is realized
The rotation of pivoting part.
Although above in conjunction with figure, invention has been described, and the invention is not limited in above-mentioned specific embodiment parties
Formula, above-mentioned specific embodiment is only schematical rather than restricted, and those of ordinary skill in the art are in this hair
Under bright enlightenment, without deviating from the spirit of the invention, many variations can also be made, these belong to the guarantor of the present invention
Within shield.
Claims (4)
1. a kind of Z-type rotary supporting device, special including top race (1), bottom race (2), ball (7), roller and pressure ring (3)
Sign is that the axis of the top race (1) and bottom race (2) overlaps, and the top race (1) and the bottom race (2) pass through phase
The cascaded surface mutually contacted nests together, and two opposite Z-shapeds are formed on the vertical section for crossing axis；The top race (1)
It is equipped with upper ring raceway, intermediate annular raceway and lower ring raceway, the upper ring raceway from top to bottom between bottom race (2)
It is interior to be equipped with upper raceway roller (5), lower raceway roller (6) is equipped in the lower ring raceway, is equipped in the intermediate annular raceway
Ball (7), the upper ring raceway and lower ring raceway are respectively equipped with the opposite inclination angle in direction, the upper raceway roller (5)
Top be equipped with pressure ring (3), the upper surface of the top race (1) be equipped with it is multiple press closer screw (4) for fixed pressure ring (3),
The bottom race (2) is equipped with ball handling hole and handling hole sealing block (8) and circular cone positioning pin (9), the upper ring raceway,
Intermediate annular raceway and lower ring raceway are respectively equipped with lubrication system and sealing structure；The outer surface of the top race (1) or
The inner surface of the bottom race (2) is provided with the gear teeth.
2. Z-type rotary supporting device according to claim 1, which is characterized in that the lubrication system is by oilhole, oil duct and oil
Mouth is formed.
3. Z-type rotary supporting device according to claim 1, which is characterized in that the sealing structure includes sealing ring (11)
With sealing strip (10), the sealing ring is arranged between the top race (1) and the bottom race (2) and positioned at the lower annular
At raceway periphery；The sealing strip (10) be inlaid in the inner surface of the pressure ring (3) and the bottom race (2) upper surface it
Between.
4. Z-type rotary supporting device according to claim 1, which is characterized in that the top race (1) and the bottom race
(2) installation screw (13,14) is equipped on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310638857.1A CN103603866B (en) | 2013-11-30 | 2013-11-30 | Z-type rotary supporting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310638857.1A CN103603866B (en) | 2013-11-30 | 2013-11-30 | Z-type rotary supporting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103603866A CN103603866A (en) | 2014-02-26 |
| CN103603866B true CN103603866B (en) | 2018-05-22 |
Family
ID=50122114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310638857.1A Active CN103603866B (en) | 2013-11-30 | 2013-11-30 | Z-type rotary supporting device |
Country Status (1)
| Country | Link |
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| CN (1) | CN103603866B (en) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006056186A1 (en) * | 2006-11-27 | 2008-06-05 | Rothe Erde Gmbh | Roller bearings, in particular center-free slewing bearings |
| DE102008035003A1 (en) * | 2008-07-25 | 2010-02-04 | Rothe Erde Gmbh | Roller bearings, in particular center-free slewing bearings |
| CN201526602U (en) * | 2009-10-29 | 2010-07-14 | 徐州罗特艾德回转支承有限公司 | Three-row roller rotating support |
| CN102094898A (en) * | 2010-12-09 | 2011-06-15 | 瓦房店轴承集团有限责任公司 | Three-row equal-diameter cylindrical roller turntable bearing |
| CN202360585U (en) * | 2011-12-06 | 2012-08-01 | 大连国威轴承股份有限公司 | Rotary table bearing used for blast furnace |
| CN202659722U (en) * | 2012-01-05 | 2013-01-09 | 洛阳世必爱特种轴承有限公司 | Precise turntable bearing for time grating monitoring and control |
| DE102012007972A1 (en) * | 2012-04-20 | 2013-10-24 | Gm Global Technology Operations, Llc | gear assembly |
| CN202646372U (en) * | 2012-06-11 | 2013-01-02 | 常州市南港港口机械有限公司 | Three-row-roller type rotary bearing |
| CN203604435U (en) * | 2013-11-30 | 2014-05-21 | 天津重钢机械装备股份有限公司 | Z-shaped rotary supporting device |
-
2013
- 2013-11-30 CN CN201310638857.1A patent/CN103603866B/en active Active
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| Publication number | Publication date |
|---|---|
| CN103603866A (en) | 2014-02-26 |
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