CN202468926U - Rotary drive pair for double-worm turntable bearings - Google Patents
Rotary drive pair for double-worm turntable bearings Download PDFInfo
- Publication number
- CN202468926U CN202468926U CN2012200023090U CN201220002309U CN202468926U CN 202468926 U CN202468926 U CN 202468926U CN 2012200023090 U CN2012200023090 U CN 2012200023090U CN 201220002309 U CN201220002309 U CN 201220002309U CN 202468926 U CN202468926 U CN 202468926U
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- Prior art keywords
- turntable bearing
- worm
- double
- cylindrical roller
- transmission device
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- Expired - Fee Related
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Abstract
The utility model discloses a rotary drive pair for double-worm turntable bearings, which comprises a double-worm transmission device; and the rotary drive pair is characterized in that a double-row thrust angular-contact cylindrical roller turntable bearing is arranged in the double-worm transmission device, and a worm gear of the double-worm transmission device is arranged on an excircle of an inner ring (4) of the thrust angular-contact cylindrical roller turntable bearing. According to the rotary drive pair, through a scheme of arranging double rows of roller paths and double rows of cylindrical rollers, a purpose that a rolling body is in line contact with the roller path is achieved; and the roller path has a certain inclined angle, so that the load bearing capacity of the roller path is enhanced, and further the bearing can bear axial and radial loads and large upsetting moments. Because an external gear is arranged at the middle-height part of the excircle of the inner ring, the worm gear can be installed on the excircle of the inner ring, compared with the conventional double-row four-point contact ball turntable bearing with the external gear, under same space conditions, the load bearing capacity can be greatly improved, and the rigidity and the upsetting moment bearing capacity are enhanced. The rotary drive pair disclosed by the utility model has the characteristics of simple structure, space conservation, easiness for use, and cost reduction.
Description
Technical field
The utility model belongs to the mechanical transmissioning technology field, and what relate generally to is that a kind of twin worm contacts cylindrical roller turntable bearing combination revolution driving auxiliary with push angle.The fields such as heavy duty crane, portal crane, slingcart adaptable across the mine.
Technical background
Twin worm contacts cylindrical roller turntable bearing combination revolution driving auxiliary with push angle be to satisfy big speed ratio, big powerdriven device, is two between centers transmitting movement and the power staggered in the space.Be mainly used in transmitting movement and the powered device, particularly on the revolution device for hoisting of mine heavy duty equipment, portal crane.Existing twin worm worm drive pair mainly contains two kinds: a kind of ball bearing, housing, left end cap, worm screw or worm shaft, worm screw positioning bearing, right end cap, loam cake and power source of joining by a worm gear, with worm gear (also have do not dispose the power source user dispose power source voluntarily) formed; Another kind is that worm gear, housing, left end cap, worm screw or worm shaft, worm screw positioning bearing, right end cap, loam cake and power source (also have do not dispose the power source user dispose power source voluntarily) are formed by the four point touching ball slewing bearing of a band external toothing.These two kinds of twin worm worm gear pairs are because worm gear is joined ball bearing or 4 ball slewing bearings all are single-row ball-bearings; Rolling element and raceway all are to contact; Ability and the intensity of itself bearing load is restricted under the same spatial condition, can not satisfy same spatial position mine heavy duty crane and portal crane heavy load, high tenacity, the requirement of tilting moment greatly.
Summary of the invention
The purpose of the utility model produces thus, proposes a kind of twin worm turntable bearing revolution driving auxiliary, effectively improves load bearing capacity and intensity, increases the tilting moment ability to bear, under same spatial condition, can satisfy the requirement of heavy load, big tilting moment.
The utility model realizes that the technological scheme that above-mentioned purpose is taked is: in the twin worm transmission device, be provided with biserial push angle contact cylindrical roller turntable bearing, the worm gear of said twin worm transmission device is arranged on the cylindrical of said push angle contact cylindrical roller turntable bearing inner ring.
Said biserial push angle contact cylindrical roller turntable bearing comprises inner ring, two raceways, first line column roller, secondary series cylindrical roller, first outer ring and second outer rings; Cylindrical middle part at said inner ring is evenly equipped with external tooth; Be positioned on the inner ring cylindrical at this upper and lower position of external tooth and also be symmetrically arranged with raceway; This raceway is a leaning structure, wherein in the raceway of bottom, is provided with first line column roller, in the raceway on top, is provided with the secondary series cylindrical roller; First line column roller compresses the location by first outer ring, and the secondary series cylindrical roller compresses the location by second outer ring.
The inner ring and the worm gear of described biserial push angle contact cylindrical roller turntable bearing can be structure as a whole, and also can be the branch body structure.
Described biserial push angle contact cylindrical roller turntable bearing is installed on the housing bottom surface of said twin worm transmission device.
Second outer ring of said biserial push angle contact cylindrical roller turntable bearing is fixed on the housing upper end of said twin worm transmission device.
First outer ring of said biserial push angle contact cylindrical roller turntable bearing is fixed on the housing lower end of said twin worm transmission device.
The utility model solves the problem that existing twin worm worm drive pair can not satisfy heavy load, high tenacity, big tilting moment through biserial push angle contact cylindrical roller turntable bearing is set; Through the scheme of biserial raceway and double-row cylindrical roller is set, reach the target of rolling element and Race Line Contact.And raceway has certain angle of inclination, has increased load-carrying ability thus, make bearing can reach to and radial load, and big tilting moment.Because external tooth is arranged on the middle part of inner ring external diameter; Like this; Worm gear just can be installed in above the inner ring external diameter, compares with existing band external tooth biserial four point touching ball slewing bearing, under same spatial condition, can increase substantially load bearing capacity; Increase rigidity and tilting moment ability to bear, satisfy the requirement of field heavy loads such as mine heavy duty crane, portal crane, slingcart, big tilting moment.Have simple in structurely, save the space, easy to use, the characteristics that reduce cost.
Description of drawings
Fig. 1 is the main schematic representation of the utility model structure.
Fig. 2 is the plan view of Fig. 1.
Among the figure: 1, housing, 2, first outer ring, 3, first line column roller, 4, inner ring, 5, the secondary series cylindrical roller, 6, second outer ring, 7, worm screw or worm shaft, 8, right end cap, 9, the worm screw positioning bearing, 10, left end cap, 11, power source.
Embodiment
In conjunction with accompanying drawing, embodiment is elaborated to the utility model.
Combine shown in Figure 2 like Fig. 1: the twin worm turntable bearing revolution driving auxiliary under the present embodiment comprises symmetrically arranged housing 1, biserial push angle contact cylindrical roller turntable bearing, worm gear, worm screw or worm shaft 7, quadruplet worm screw positioning bearing 9, right end cap 8, left end cap 10 and power source 11; Worm gear is installed in the housing 1; In two worm screw cavitys of housing, be separately installed with two worm screws or worm shaft 7 with the worm gear interlock, quadruplet worm screw positioning bearing 9 is installed on the two supports worm screw of worm screw or worm shaft 7 and rotates with worm screw; Left end cap 10, right end cap 8 are installed in two worm screw cavity two ends respectively and block extraneous dust.Biserial push angle contact cylindrical roller turntable bearing is installed in the inside of housing; Biserial push angle contact cylindrical roller turntable bearing (separate case is applied for a patent); It comprises inner ring 4, two raceways, first line column roller 3, secondary series cylindrical roller 5, first outer ring 2 and second outer ring 6; Middle part at the cylindrical height of said inner ring 4 is provided with all external tooths, is positioned on the inner ring cylindrical at this upper and lower position of external tooth also to be symmetrically arranged with raceway, and this two raceway is 35 °～60 ° leaning structures; Wherein in the raceway of bottom, be provided with first line column roller 3; In the raceway on top, be provided with secondary series cylindrical roller 5, the first line column rollers 3 and compress the location by first outer ring 2, secondary series cylindrical roller 5 compresses the location by second outer ring 6.
The inner ring 4 of described biserial push angle contact cylindrical roller turntable bearing can be structure as a whole with worm gear, also can be the branch body structure, forms the turntable bearing of band worm gear thus and not with two kinds of structures of turntable bearing of worm gear.
Described biserial push angle contact cylindrical roller turntable bearing is installed in the housing 1 of said twin worm transmission device.
Second outer ring 6 of said biserial push angle contact cylindrical roller turntable bearing is fixed on housing 1 upper end of said twin worm transmission device.
First outer ring 2 of said biserial push angle contact cylindrical roller turntable bearing is fixed on housing 1 lower end of said twin worm transmission device.
When the utility model uses, drive twin worm by power source 11 and rotate, worm screw drives the worm gear rotation, and worm gear drives biserial push angle contact cylindrical roller turntable bearing rotates, and realizes the transmission of the two between centers motion that heavy load, big tilting moment and space are staggered.
Claims (6)
1. a twin worm turntable bearing turns round driving auxiliary; Comprise the twin worm transmission device; It is characterized in that: in said twin worm transmission device, be provided with biserial push angle contact cylindrical roller turntable bearing, the worm gear of said twin worm transmission device is arranged on the cylindrical of said push angle contact cylindrical roller turntable bearing inner ring (4).
2. twin worm turntable bearing revolution driving auxiliary according to claim 1; It is characterized in that: said biserial push angle contact cylindrical roller turntable bearing comprises inner ring (4), two raceways, first line column roller (3), secondary series cylindrical roller (5), first outer ring (2) and second outer ring (6); Height middle part at the cylindrical of said inner ring is provided with external tooth; Be positioned on the inner ring cylindrical at this upper and lower position of external tooth and also be symmetrically arranged with raceway; This raceway wherein is provided with first line column roller for 35 °～60 ° structures that tilt in the raceway of bottom, in the raceway on top, be provided with the secondary series cylindrical roller; First line column roller compresses the location by first outer ring, and the secondary series cylindrical roller compresses the location by second outer ring.
3. twin worm turntable bearing revolution driving auxiliary according to claim 1 is characterized in that: the inner ring (4) of described biserial push angle contact cylindrical roller turntable bearing can be structure as a whole with worm gear, also can be the branch body structure.
4. twin worm turntable bearing revolution driving auxiliary according to claim 1 is characterized in that: described biserial push angle contact cylindrical roller turntable bearing is installed in the housing (1) of said twin worm transmission device.
5. twin worm turntable bearing revolution driving auxiliary according to claim 1 is characterized in that: second outer ring (6) of said biserial push angle contact cylindrical roller turntable bearing is fixed on housing (1) upper end of said twin worm transmission device.
6. twin worm turntable bearing revolution driving auxiliary according to claim 1 is characterized in that: first outer ring (2) of said biserial push angle contact cylindrical roller turntable bearing is fixed on housing (1) lower end of said twin worm transmission device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200023090U CN202468926U (en) | 2012-01-05 | 2012-01-05 | Rotary drive pair for double-worm turntable bearings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200023090U CN202468926U (en) | 2012-01-05 | 2012-01-05 | Rotary drive pair for double-worm turntable bearings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202468926U true CN202468926U (en) | 2012-10-03 |
Family
ID=46917085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200023090U Expired - Fee Related CN202468926U (en) | 2012-01-05 | 2012-01-05 | Rotary drive pair for double-worm turntable bearings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202468926U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563017A (en) * | 2012-01-05 | 2012-07-11 | 洛阳世必爱特种轴承有限公司 | Double-worm turntable bearing swing driving pair |
-
2012
- 2012-01-05 CN CN2012200023090U patent/CN202468926U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563017A (en) * | 2012-01-05 | 2012-07-11 | 洛阳世必爱特种轴承有限公司 | Double-worm turntable bearing swing driving pair |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20200105 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |