CN203257988U - Double-worm drive slewing driving device - Google Patents
Double-worm drive slewing driving device Download PDFInfo
- Publication number
- CN203257988U CN203257988U CN 201320294926 CN201320294926U CN203257988U CN 203257988 U CN203257988 U CN 203257988U CN 201320294926 CN201320294926 CN 201320294926 CN 201320294926 U CN201320294926 U CN 201320294926U CN 203257988 U CN203257988 U CN 203257988U
- Authority
- CN
- China
- Prior art keywords
- worm
- external toothing
- axle housing
- double
- inner ring
- 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
Links
Images
Abstract
The utility model discloses a double-worm drive slewing driving device. The double-worm drive slewing driving device comprises a base and a slewing bearing, wherein the slewing bearing comprises an inner ring, an outer gear ring and balls arranged between the inner ring and the outer gear ring in an embedded mode, the inner ring is fixed above a race of the base, a first shaft housing and a second shaft housing are further symmetrically arranged on the outer side of the race of the base, the axial line of the first shaft housing and the axial line of the race are perpendicular to each other in the space position, the axial line of the second shaft housing and the axial line of the race are perpendicular to each other in the space position, a first worm is installed in the first shaft housing, a second worm is installed in the second shaft housing, and the first worm and the second worm are meshed with the outer gear ring. According to the double-worm drive slewing driving device, the two worms are used for driving the outer gear ring of the slewing bearing, translation acting force of the two worms on the outer gear ring are mutually counteracted, meanwhile, a gap between each worm and the outer gear ring can be eliminated, and accurate positioning of the rotation angle of the outer gear ring is achieved. The double-worm drive slewing driving device is simple in structure and reasonable in design, and can be widely applied to industries such as the engineering machinery industry, the construction machinery industry and the solar photovoltaic industry.
Description
Technical field
The utility model relates to the driving mechanism of a kind of device for revolving and driving, particularly a kind of device for revolving and driving.
Background technique
Device for revolving and driving is widely used a kind of parts in photovoltaic, engineering machinery, the building machinery.The essential structure of device for revolving and driving is the worm gear-endless screw drive mechanism, usually is provided with tooth in the outer ring of pivoting support, also claims external toothing, and its effect is equivalent to worm gear, is then rotated by the worm drive external toothing.
Device for revolving and driving is typically provided with a worm screw and drives external toothing, can call single worm drive device for revolving and driving to this device for revolving and driving.Single worm drive device for revolving and driving has the advantages such as simple in structure, with low cost, is widely used.As in solar photovoltaic generation system, the orientation that the single worm drive device for revolving and driving of common usefulness is followed the tracks of the sun makes solar photovoltaic assembly all the time over against the sun, utilizes to greatest extent the energy of sunlight.
But the device for revolving and driving of this single worm drive, increase along with working time, the increasing of mechanical wear, and system suffers the shock effect of the natural rugged environment such as wind-force, in addition during single worm drive, worm screw to the active force of worm gear except the active force that promotes the worm gear rotation, the active force that also has the translation of a promotion worm gear, so just cause the gap between worm gear and the worm screw to continue to increase, worm gear rotation location is inaccurate, can not guarantee that solar photovoltaic assembly accurately aims at the sun, the solar energy utilization ratio descends, and also can cause device for revolving and driving to lose efficacy when serious.
The model utility content
The purpose of this utility model is exactly inaccurate, the easy technical problem that lost efficacy of damaging in worm gear, worm screw excesssive gap, location that exists in order to solve single worm drive device for revolving and driving, for this reason, the utility model proposes the device for revolving and driving that a kind of twin worm drives.
Because in single worm drive device for revolving and driving, worm screw except the active force that promotes the worm gear rotation, also has the active force of promotion worm gear translation to the active force of worm gear, and turning effort power is larger, phorogenesis power is also larger, and the active force of promotion worm gear translation is unwanted.If be symmetrical arranged a worm screw, this worm screw can be decomposed into two equally to the active force of worm gear again, and one is the active force that promotes the worm gear rotation, and another is the active force that promotes the worm gear translation.Two phorogenesis forced directions can be cancelled out each other on the contrary, slow down owing to push the speed in the gap that the factors such as long-time running mechanical wear cause; Simultaneously, even occurred certain gap between the worm and wheel, can cancel out each other in the gap of two worm and wheels, thereby realize the accurate location that worm gear rotates.
For this reason, for realizing the utility model purpose, the double-worm driven slewing drive unit that the utility model proposes, such as Fig. 1, shown in Figure 2, comprise pedestal 1, pivoting support 3, described pivoting support 3 comprises inner ring 3.1, external toothing 3.2 and be embedded at inner ring 3.1 and external toothing 3.2 between ball 3.3, be provided with some installation screws on the external toothing 3.2, inner ring 3.1 is fixed on the top of the seat ring 1.3 of pedestal 1, also seat ring 1.3 arranged outside at pedestal 1 have the first axle housing 1.1 and the second axle housing 1.2, the shaft axis of described the first axle housing 1.1 and the second axle housing 1.2 and the shaft axis of seat ring 1.3 are orthogonal in the spatial position, the first worm screw 2.1 is installed in the first axle housing 1.1, the second worm screw 2.2 is installed in the second axle housing 1.2, the first worm screw 2.1 and the second worm screw 2.2 all with external toothing 3.2 engagement, and the first axle housing 1.1 and the second axle housing 1.2 and the first worm screw 2.1 and the second worm screw 2.2 are symmetrical arranged.
Further, for improving the waterproof and dustproof performance of twin worm device for revolving and driving, top board 18 can also be set, be provided with the hole corresponding with external toothing 3.2 installation screws on the described top board 18, top board 18 is installed on the top of external toothing 3.2 and inner ring 3.1, between external toothing 3.2 and the seat ring 1.3 lip-type packing 16 is installed also, be provided with O-ring seals 17 between the upper surface of top board 18 and inner ring 3.1, described top board 18 all is connected by bolt, waterproof washer with seat ring 1.3 with external toothing 3.2, inner ring 3.1, as shown in Figure 3.
In the utility model, used two worm screws to drive the external toothing of pivoting support, so also can be described as the double-worm driven slewing drive unit.During the work of the utility model double-worm driven slewing drive unit, control system drives the first worm screw and the second worm screw synchronous rotary, external toothing rotates thereupon, and two worm screw phorogenesis power that external toothing is subject to are cancelled out each other, therefore, when improving the external toothing rotary driving force, reduced the phorogenesis power that external toothing is subject to, worm screw and external toothing the speed in gap occurs and slow down; After external toothing rotates to specified position, even all there are certain interval in two worm screws and external toothing, at this moment, utilize control system that two worm screws and external toothing are oppositely locked, like this, " elimination " gap of worm screw and external toothing, therefore, can realize the accurate location of external toothing angle of swing.
In addition, the utility model also is provided with waterproof and dustproof structure, uses respectively lip-type packing and O-ring seals to solve motive sealing and static seal problem, can be until good sealing effect, be adapted to the rugged environment such as humidity, sand and dust are serious.
The utility model can be exported larger moment of torsion, can bear larger axial force, radial force and tilting moment again.
According to model utility thinking of the present utility model, the quantity of axle housing and worm screw can be for more than 3 or 3, but when a plurality of axle housings and worm screw are set, can make device for revolving and driving structure and driving control system too complicated, reduce on the contrary the reliability of device, usually be symmetrical arranged 2 axle housings and 2 worm screw the bests.
The utility model is simple in structure, reasonable in design, and practical effect is good, installs simply, and is easy to maintenance, reliable and stable, can be widely used in the industries such as engineering machinery, building machinery, photovoltaic and use.
Description of drawings
Fig. 1 is the structural representation plan view (cut-away section) of double-worm driven slewing drive unit.
Fig. 2 is the left view (cut-away section) of Fig. 1.
Fig. 3 is that Figure 1A-A is to sectional view.
Wherein: 1 is pedestal, and 1.1 is the first axle housing, and 1.2 is the second axle housing, and 1.3 is seat ring, and 2.1 is the first worm screw, 2.2 be the second worm screw, 3 is pivoting support, 3.1 is inner ring, and 3.2 is external toothing, 3.3 be ball, 16 is O-ring seals, 17 are lip-type packing, and 18 is top board.
Embodiment
Below in conjunction with description of drawings implementation the utility model how.
Such as Fig. 1,2, shown in 3, can implement as follows the utility model double-worm driven slewing drive unit, comprise pedestal 1, pivoting support 3, described pivoting support 3 comprises inner ring 3.1, external toothing 3.2 and be embedded at inner ring 3.1 and external toothing 3.2 between ball 3.3, be provided with some installation screws on the external toothing 3.2, inner ring 3.1 is fixed on the top of the seat ring 1.3 of pedestal 1, also seat ring 1.3 arranged outside at pedestal 1 have the first axle housing 1.1 and the second axle housing 1.2, the shaft axis of described the first axle housing 1.1 and the second axle housing 1.2 and the shaft axis of seat ring 1.3 are orthogonal in the spatial position, the first worm screw 2.1 is installed in the first axle housing 1.1, the second worm screw 2.2 is installed in the second axle housing 1.2, the first worm screw 2.1 and the second worm screw 2.2 all mesh with external toothing 3.2, and the first axle housing 1.1 and the second axle housing 1.2 and the first worm screw 2.1 and the second worm screw 2.2 are symmetrical arranged, top board 18 also is set, be provided with the hole corresponding with external toothing 3.2 installation screws on the described top board 18, top board 18 is installed on the top of external toothing 3.2 and inner ring 3.1, between external toothing 3.2 and the seat ring 1.3 lip-type packing 16 is installed also, be provided with O-ring seals 17 between the upper surface of top board 18 and inner ring 3.1, described top board 18 and external toothing 3.2, inner ring 3.1 all passes through bolt with seat ring 1.3, waterproof washer connects.
Claims (2)
1. double-worm driven slewing drive unit, comprise pedestal (1), pivoting support (3), described pivoting support (3) comprises inner ring (3.1), external toothing (3.2) and be embedded at inner ring (3.1) and external toothing (3.2) between ball (3.3), external toothing is provided with some installation screws on (3.2), inner ring (3.1) is fixed on the top of the seat ring (1.3) of pedestal (1), it is characterized in that, seat ring (1.3) outside of pedestal (1) also is provided with the first axle housing (1.1) and the second axle housing (1.2), the shaft axis of described the first axle housing (1.1) and the second axle housing (1.2) and the shaft axis of seat ring 1.3 are orthogonal in the spatial position, the first worm screw (2.1) is installed in the first axle housing (1.1), the second worm screw (2.2) is installed in the second axle housing (1.2), the first worm screw (2.1) and the second worm screw (2.2) all mesh with external toothing (3.2), and the first axle housing (1.1) is symmetrical arranged with the second worm screw (2.2) with the second axle housing (1.2) and the first worm screw (2.1).
2. double-worm driven slewing drive unit claimed in claim 1, it is characterized in that, also be provided with top board (18), be provided with the hole corresponding with external toothing (3.2) installation screw on the described top board (18), top board (18) is installed on the top of external toothing (3.2) and inner ring (3.1), between external toothing (3.2) and the seat ring (1.3) lip-type packing (16) is installed also, be provided with O-ring seals (17) between the upper surface of top board (18) and inner ring (3.1), described top board (18) and external toothing (3.2), inner ring (3.1) all passes through bolt with seat ring (1.3), waterproof washer connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320294926 CN203257988U (en) | 2013-05-28 | 2013-05-28 | Double-worm drive slewing driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320294926 CN203257988U (en) | 2013-05-28 | 2013-05-28 | Double-worm drive slewing driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203257988U true CN203257988U (en) | 2013-10-30 |
Family
ID=49470552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320294926 Expired - Lifetime CN203257988U (en) | 2013-05-28 | 2013-05-28 | Double-worm drive slewing driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203257988U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244610A (en) * | 2013-05-28 | 2013-08-14 | 江阴凯迈机械有限公司 | Twin-worm drive swing driving device |
-
2013
- 2013-05-28 CN CN 201320294926 patent/CN203257988U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244610A (en) * | 2013-05-28 | 2013-08-14 | 江阴凯迈机械有限公司 | Twin-worm drive swing driving device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2012157076A (en) | SWIVEL ACTUATOR | |
| CN101913150B (en) | Robot revolute joint module with single degree of freedom | |
| CN110255419B (en) | Ball screw electric cylinder | |
| CN101893899B (en) | Solar tracing device with combined bearing turntable | |
| CN103244610A (en) | Twin-worm drive swing driving device | |
| CN205572054U (en) | Cam roller zero clearance numerical control index table structure | |
| CN104124914A (en) | Rotary decoupling biaxial solar condenser parallel tracking mechanism | |
| CN203257988U (en) | Double-worm drive slewing driving device | |
| CN201682439U (en) | Sun tracking apparatus with combined bearing turntable | |
| CN204805435U (en) | Double ball journal is to pretension swing drives device | |
| CN201913645U (en) | Rotating joint module of single DOF (degree of freedom) robot | |
| CN203322248U (en) | Self-locking rotation driving device | |
| CN203516598U (en) | Gear type rotary driving device | |
| CN201319535Y (en) | Front bearing positioning structure of motor | |
| CN215059216U (en) | High radial load rotary speed reducer | |
| CN204387122U (en) | The B-mode long loop seals circle of bearing mazy type | |
| CN205930973U (en) | Seal structure of crawler tractor thrust wheel | |
| CN201637265U (en) | Small-sized driving device of rotary kiln | |
| CN212660068U (en) | Single-main-beam synchronous multi-point driving tracking transmission system with overload protection function | |
| CN212804089U (en) | High-load rotary speed reducer | |
| CN204942436U (en) | A kind of table-type Cam splitter | |
| CN201779214U (en) | Improved worm speed reducer for photovoltaic power-generating single-shaft tracking system | |
| CN204253627U (en) | Waterproof type high-speed precision bearing | |
| CN203146576U (en) | Slewing bearing of zero clearance raceway and slewing driving device of zero clearance raceway | |
| CN220886869U (en) | Rotatable three lead screw jacking device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131030 |
|
| CX01 | Expiry of patent term |