CN204358058U - A kind of variable-pitch worm device for revolving and driving - Google Patents
A kind of variable-pitch worm device for revolving and driving Download PDFInfo
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- CN204358058U CN204358058U CN201420722357.6U CN201420722357U CN204358058U CN 204358058 U CN204358058 U CN 204358058U CN 201420722357 U CN201420722357 U CN 201420722357U CN 204358058 U CN204358058 U CN 204358058U
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Abstract
The application discloses a kind of variable-pitch worm device for revolving and driving, comprise pedestal, worm screw, pivoting support, described pivoting support and worm screw are arranged in pedestal, the axis of worm screw and the axis of pivoting support are mutually vertical on spatial position, described pivoting support comprises inner ring and external toothing, and external toothing and worm meshing, is characterized in that: worm screw is variable-pitch worm, the transverse tooth thickness of worm screw is thinning successively along its length, and the thickness difference of adjacent teeth is less than or equal to 0.3mm; One end of worm screw is fixed in movable axle bearing by clutch shaft bearing, and the other end of worm screw is fixed on fixed bearing block by the second bearing.Present application addresses the problem that the worm screw of device for revolving and driving and pivoting support exist gap, adjust with variable-pitch worm the gap that worm screw and pivoting support exist, thus make substandard product become acceptable product, reduce the loss of producing.
Description
Technical field
The application relates to revolution actuation techniques field, relates in particular to a kind of variable-pitch worm device for revolving and driving.
Background technique
Device for revolving and driving is a kind of novel revolution series products, is usually also pivoting support, is usually made up of parts such as worm screw, pivoting support, housing, motors.Because core component adopts pivoting support, therefore can bear axial force, radial force, tilting moment simultaneously.Revolution drives to be compared with traditional revolution series products, there is simple installation, be easy to safeguard, save the features such as installing space to a greater extent, device for revolving and driving is applied to the main frame moved in a circle, and as digger revolving platform, rotating machinery etc., some carry out the machinery of outer work.
Pivoting support toothed outer ring bolt is connected with top board, turntable, and inner ring is connected with pedestal bolt, is provided with rolling element between inside and outside circle.The pedestal of device for revolving and driving is fixed on body, worm screw is meshed with the gear ring on pivoting support outer ring, equipment normal load, horizontal load and the tilting moment acted on turntable passes to the outer ring of pivoting support by top board, worm screw is passed in the outer ring of pivoting support, when device for revolving and driving works, turntable turns round with regard to opposite base.
In machine driven system, particularly in servo drive system, device for revolving and driving needs to possess higher safety coefficient, gap direct relation between worm and gear the precision of turntable rotation angle, gap larger turntable angular error is larger, easy generation safe failure, turbine and worm also easily weares and teares.In current machine driven system, requirement for gap is more and more stricter, usually requires zero clearance transmission, this is because drive gap divided ring servo-control system directly has influence on startup and Reverse Turning Control precision, in order to improve Worm Wheel System gap, people have thought thousand and one way, such as, and Worm adjusting-clearance method, and change the centre distance method of worm and gear, but the structure of the latter is more complicated, and will have enough enforcement spaces, therefore using scope is restricted.In addition on the one hand, the high security (self-locking performance of worm and gear) that revolution drives is that users select it as a key factor of aerial work platform accessory.It is undesirable that above 2 key issues do not solve or solve, all can not be appropriate handle the problems such as device for revolving and driving operates steadily, highi degree of accuracy, long lifetime well.
Summary of the invention
The technical problem to be solved in the present invention is for above-mentioned the deficiencies in the prior art, and provides a kind of variable-pitch worm device for revolving and driving, and this device preparation process technique simply, easily realizes,
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of variable-pitch worm device for revolving and driving, comprise pedestal, worm screw, pivoting support, described pivoting support and worm screw are arranged in pedestal, and the axis of worm screw and the axis of pivoting support are mutually vertical on spatial position, described pivoting support comprises inner ring and external toothing, external toothing and worm meshing; Described variable-pitch worm device for revolving and driving also comprises movable axle bearing and fixed bearing block, and one end of worm screw is fixed in movable axle bearing by clutch shaft bearing, and the other end of worm screw is fixed on fixed bearing block by the second bearing; Worm screw is variable-pitch worm, and the transverse tooth thickness of worm screw is thinning successively along its length, and the thickness difference of adjacent teeth is less than or equal to 0.3mm.
Described worm screw is positioned at one end suit axial restraint rotating shaft of fixed bearing block, and worm screw is connected by key with axial restraint rotating shaft, and worm screw rotates together with axial restraint rotating shaft.
One end of described movable axle bearing is fixedly installed bearing (ball) cover by adjustment bolt, and the other end of movable axle bearing is fixed on pedestal by adjustment bolt.
Between described movable axle bearing and pedestal, spacer is set.
One end of described fixed bearing block is fixed on pedestal, and the other end of fixed bearing block is fixedly connected with motor regulating block.
After the present invention adopts technique scheme, there is following technique effect:
1, present application addresses the problem that the worm screw of device for revolving and driving and pivoting support (helical gear) exist gap, the gap that worm screw and pivoting support (helical gear) exist is adjusted with variable-pitch worm, thus make substandard product become acceptable product, reduce the loss of producing.
2, the application's variable-pitch worm adjusts the gap that worm screw and pivoting support (helical gear) exist, and is proven and reaches usage requirement, extends endless screw apparatus working life.
3, the application's variable-pitch worm device for revolving and driving structure is simple, and cost is low, makes easily.Make transmission smooth running, adjustment back lash is convenient, and transmission accuracy is adjusted in certain scope.
4, the application's design science, rationally, original, practical effect is excellent, structure is simple, easy to adjust, reliable and stable, is applicable to the industries such as engineering machinery, building machinery, photovoltaic.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the application, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 shows a kind of variable-pitch worm device for revolving and driving of the application schematic diagram;
Fig. 2 shows the variable-pitch worm schematic diagram of a kind of variable-pitch worm device for revolving and driving of the application;
Wherein have: 1. pedestal; 2. adjust bolt; 3. spacer; 4. movable axle bearing; 5. worm screw; 6. axial restraint rotating shaft; 7. fixed bearing block; 8 motor regulating blocks; 9. pivoting support.
Embodiment
For making object of the present invention and technological scheme clearly, below in conjunction with the embodiment of the present invention, technological scheme of the present invention is clearly and completely described.Obviously, described embodiment is a part of embodiment of the present invention, instead of whole embodiments.Based on described embodiments of the invention, the every other embodiment that those of ordinary skill in the art obtain under without the need to the prerequisite of creative work, belongs to the scope of protection of the invention.
As shown in Figure 1, a kind of variable-pitch worm device for revolving and driving, comprise pedestal 1, worm screw 5, pivoting support 9, described pivoting support 9 is arranged in pedestal 1 with worm screw 5, and the axis of worm screw 5 and the axis of pivoting support 9 are mutually vertical on spatial position, and described pivoting support 9 comprises inner ring and external toothing, external toothing engages with worm screw 5, worm screw 5 is variable-pitch worm, and the transverse tooth thickness of worm screw 5 is thinning successively along its length, and the thickness difference of adjacent teeth is less than or equal to 0.3mm; One end of worm screw 5 is fixed in movable axle bearing 4 by clutch shaft bearing, and the other end of worm screw 5 is fixed on fixed bearing block 7 by the second bearing.
Embodiment 1
As shown in Figure 2, the transverse tooth thickness right-to-left of described worm screw 5 is thinning successively, and the thickness difference of adjacent teeth is not more than 0.3mm.
Described worm screw 5 is positioned at one end suit axial restraint rotating shaft 6 of fixed bearing block 7, and worm screw 5 is connected by key with axial restraint rotating shaft 6, and worm screw 5 rotates together with axial restraint rotating shaft 6.
The left end of worm screw 5 is arranged in movable axle bearing 4, except rotating, can also move with movable axle bearing 4.
One end of movable axle bearing 4 is fixedly installed bearing (ball) cover by adjustment bolt 2, and the other end of movable axle bearing 4 is fixed on pedestal 1 by adjustment bolt 2, arranges spacer 3 between movable axle bearing 4 and pedestal 1.
Long-term operation makes worm and wheel (helical gear) tooth surface abrasion, cause the excesssive gap of the two, one end of fixed bearing block 7 is by adjustment key, one end of movable axle bearing 4 makes worm screw 5 be moved to the left by adjustment bolt 2, gap between movable axle bearing 4 and pedestal 1 is adjusted by spacer 3, thus reaches adjustment pivoting support 9 (helical gear) and worm screw 5 back lash.Make transmission smooth running, adjustment back lash convenience, transmission accuracy is adjusted in certain scope.
One end of movable axle bearing 4 described in the application is fixedly installed bearing (ball) cover by adjustment bolt 2, and one end of described fixed bearing block 7 is fixed on pedestal 1, and the other end of fixed bearing block 7 is fixedly connected with motor regulating block 8.
The application's structure is simple, easy to adjust, reliable and stable, can be widely used in the driving mechanism in the fields such as various driving mechanism, particularly truck-mounted crane, high-altitude operation vehicle, solar tracker and engineering machinery.
Variable-pitch worm swivel gear technology have employed a kind of new technique regulating worm screw and turbine (helical gear) back lash, and no matter in manufactory, or applying unit can be carried out, and its structure is simple, adjusts more convenient.The driving mechanism in the fields such as various driving mechanism, particularly truck-mounted crane, high-altitude operation vehicle, solar tracker and engineering machinery is conveniently widely used in after enforcement.
In manufactory, due to the error accumulation that processing produces, when causing worm and wheel (helical gear) back lash overproof, worm and wheel (helical gear) can be adjusted with variable-pitch worm and there is gap, thus make substandard product become acceptable product, reduce the loss of producing; In applying unit, by long-term operation, worm and wheel (helical gear) tooth surface abrasion, make back lash become large, when not meeting service condition, worm and wheel (helical gear) can be adjusted with variable-pitch worm and there is gap, reach usage requirement, extend working life.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, and all terms used herein (comprising technical term and scientific terminology) have the meaning identical with the general understanding of the those of ordinary skill in field belonging to the present invention.Should also be understood that those terms defined in such as general dictionary should be understood to have the meaning consistent with the meaning in the context of prior art, unless and define as here, can not explain by idealized or too formal implication.
The implication of the "and/or" described in the present invention refers to respective individualism or both simultaneous situations include interior.
With above-mentioned according to desirable embodiment of the present invention for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this invention technological thought, can carry out various change and amendment completely.The technical scope of this invention is not limited to the content on specification, must determine its technical scope according to right.
Claims (5)
1. a variable-pitch worm device for revolving and driving, comprise pedestal (1), worm screw (5), pivoting support (9), described pivoting support (9) and worm screw (5) are arranged in pedestal (1), the axis of worm screw (5) and the axis of pivoting support (9) are mutually vertical on spatial position, described pivoting support (9) comprises inner ring and external toothing, external toothing engages with worm screw (5), it is characterized in that: also comprise movable axle bearing (4) and fixed bearing block (7), one end of worm screw (5) is fixed in movable axle bearing (4) by clutch shaft bearing, the other end of worm screw (5) is fixed on fixed bearing block (7) by the second bearing, described worm screw (5) is variable-pitch worm, and the transverse tooth thickness of worm screw (5) is thinning successively along its length, and the thickness difference of adjacent teeth is less than or equal to 0.3mm.
2. variable-pitch worm device for revolving and driving according to claim 1, it is characterized in that, described worm screw (5) is positioned at one end suit axial restraint rotating shaft (6) of fixed bearing block (7), worm screw (5) is connected by key with axial restraint rotating shaft (6), and worm screw (5) rotates together with axial restraint rotating shaft (6).
3. variable-pitch worm device for revolving and driving according to claim 1, it is characterized in that, one end of described movable axle bearing (4) is fixedly installed bearing (ball) cover by adjustment bolt (2), and the other end of movable axle bearing (4) is fixed on pedestal (1) by adjustment bolt (2).
4. variable-pitch worm device for revolving and driving according to claim 3, is characterized in that, arranges spacer (3) between described movable axle bearing (4) and pedestal (1).
5. variable-pitch worm device for revolving and driving according to claim 1, is characterized in that, one end of described fixed bearing block (7) is fixed on pedestal (1), and the other end of fixed bearing block (7) is fixedly connected with motor regulating block (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420722357.6U CN204358058U (en) | 2014-11-27 | 2014-11-27 | A kind of variable-pitch worm device for revolving and driving |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420722357.6U CN204358058U (en) | 2014-11-27 | 2014-11-27 | A kind of variable-pitch worm device for revolving and driving |
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| CN204358058U true CN204358058U (en) | 2015-05-27 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223697A (en) * | 2016-12-22 | 2018-06-29 | 江阴凯迈机械有限公司 | Gradual changing tooth thickness adjustable accuracy formula device for revolving and driving |
| CN114033793A (en) * | 2021-10-14 | 2022-02-11 | 马鞍山经纬新能源传动设备有限公司 | Eccentric formula slewing bearing of raceway |
-
2014
- 2014-11-27 CN CN201420722357.6U patent/CN204358058U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223697A (en) * | 2016-12-22 | 2018-06-29 | 江阴凯迈机械有限公司 | Gradual changing tooth thickness adjustable accuracy formula device for revolving and driving |
| CN114033793A (en) * | 2021-10-14 | 2022-02-11 | 马鞍山经纬新能源传动设备有限公司 | Eccentric formula slewing bearing of raceway |
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