CN202659813U - Clearance-free worm gear device - Google Patents
Clearance-free worm gear device Download PDFInfo
- Publication number
- CN202659813U CN202659813U CN 201220182515 CN201220182515U CN202659813U CN 202659813 U CN202659813 U CN 202659813U CN 201220182515 CN201220182515 CN 201220182515 CN 201220182515 U CN201220182515 U CN 201220182515U CN 202659813 U CN202659813 U CN 202659813U
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- worm
- mounting hole
- clearance
- worm gear
- gear device
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Abstract
The utility model discloses a clearance-free worm gear device, and belongs to the technical field of general machinery and novel machinery. The clearance-free worm gear device comprises a worm gear case pedestal and a worm arranged in the worm gear case pedestal; the width of teeth of the worm is gradually increased or gradually reduced along the spiral path of the teeth; and one end of the worm is connected with a motor while the other end of the worm is provided with an adjusting device for adjusting the axial position of the worm. According to the clearance-free worm gear device disclosed by the utility model, after a tooth profile is worn, the worm is adjusted to axially move through a mechanical adjusting method, the matching clearance between the worm gear and the worm is removed, therefore, the times of maintaining equipment can be reduced, and the precision in equipment processing is improved.
Description
Technical field
The utility model relates to a kind of worm gear device, and particularly a kind of non-clearance worm and gear device can be used for various driving mechanisms, especially high-precision indexing mechanism, and the driving mechanisms such as high-altitude operation vehicle belong to universal machine and novel mechanical technical field.
Background technique
All there is the backlash problem in all worm gear devices on the existing market.For the factor such as consider foozle, thermal distortion and go slick, all leave the engagement side gap between the flank profil during design, after part was installed, the engagement side gap can't be adjusted, thereby has reduced transmission accuracy, can not satisfy high-precision transmission requirement.Especially, after the worm and gear wearing and tearing, it is larger that the gap becomes, and in the effect of inertia, will bump between the tooth of worm gear and worm screw and the tooth, causes part failure.
Summary of the invention
For addressing the above problem, the utility model provides a kind of effective non-clearance worm and gear device simple in structure.
The utility model is that the technological scheme that its problem of solution adopts is:
A kind of non-clearance worm and gear device, comprise the Worm gear case pedestal and be installed in the interior worm screw of Worm gear case pedestal, the facewidth of described worm screw increases gradually or reduces gradually along the spiral path of tooth, and described worm screw one end is connected with motor, and the other end is provided with the controlling device of regulating the worm screw axial position.
Preferably, described Worm gear case pedestal is provided with the mounting hole for device for installing and adjusting, described controlling device comprise be sleeved on the axle sleeve in the mounting hole and be installed in the axle sleeve radial outside with the mounting hole radially inner side between for the lock sleeve that axle sleeve is clamped in the mounting hole, described lock sleeve is provided with lock sleeve is installed in screw in the mounting hole.
Further, also be equipped with for the gripping sleeve that axle sleeve is clamped in the mounting hole between described axle sleeve radial outside and the mounting hole radially inner side.
Further, described mounting hole port is provided with protective cover, prevents that outside foreign material from falling in the mounting hole part of damage.
The beneficial effects of the utility model are: behind profile wear, the method adjustment worm screw of adjusting with machinery moves axially, and eliminates the matching gap between worm gear and the worm screw, thereby can reduce the maintenance times of equipment, improves the equipment machining accuracy.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples:
Fig. 1 is front view of the present utility model;
Fig. 2 is the enlarged view of A section among Fig. 1.
Embodiment
A kind of non-clearance worm and gear device as shown in Figure 1, comprise Worm gear case pedestal 1 and be installed in worm screw 2 in the Worm gear case pedestal 1, the facewidth of described worm screw 2 increases gradually or reduces gradually along the spiral path of tooth, described worm screw 2 one ends are connected with motor, and the other end is provided with the controlling device of regulating worm screw 2 axial positions.Described Worm gear case pedestal 1 is provided with the mounting hole 3 for device for installing and adjusting.
As shown in Figure 2, described controlling device comprise be sleeved on the axle sleeve 4 in the mounting hole 3 and be installed in axle sleeve 4 radial outsides with mounting hole 3 radially inner sides between be used for axle sleeve 4 is clamped on the interior lock sleeve 5 of mounting hole 3, described lock sleeve 5 is provided with lock sleeve 5 is installed in screw 6 in the mounting hole 3, is provided with a step in the mounting hole 3 and is used for mounting screw 6.Bearing and packing ring are installed, so that the end of worm screw 2 can be rotated very smoothly in the axle sleeve 4.Further, also be equipped with between described axle sleeve 4 radial outsides and mounting hole 3 radially inner sides for the gripping sleeve 7 that axle sleeve 4 is clamped in the mounting hole 3.Further, described mounting hole 3 ports are provided with protective cover 8, prevent that outside foreign material from falling in the mounting hole part of damage.
Behind profile wear, the utility model is adjusted worm screw by the method for adjusting with machinery and is moved axially, and eliminates the matching gap between worm gear and the worm screw.The output terminal of motor is connected by coupling 9 with worm screw 2, and leaves certain distance between the axle head of motor output end and worm screw 2, makes things convenient for worm screw 2 to move axially, thereby can reduce the maintenance times of equipment, improves the equipment machining accuracy.
Above specification is described, only is principle of the present utility model and embodiment, everyly carries out any simple modification and variation according to essence of the present utility model, all belongs within the desired protection domain of the utility model.
Claims (4)
1. non-clearance worm and gear device, comprise Worm gear case pedestal (1) and be installed in the interior worm screw (2) of Worm gear case pedestal (1), it is characterized in that, the facewidth of described worm screw (2) increases gradually or reduces gradually along the spiral path of tooth, and the end of worm screw (2) is provided with the controlling device of regulating worm screw (2) axial position.
2. a kind of non-clearance worm and gear device according to claim 1, it is characterized in that, described Worm gear case pedestal (1) is provided with the mounting hole (3) for device for installing and adjusting, described controlling device comprise be sleeved on the axle sleeve (4) in the mounting hole (3) and be installed in axle sleeve (4) radial outside with mounting hole (3) radially inner side between be used for axle sleeve (4) is clamped on lock sleeve (5) in the mounting hole (3), described lock sleeve (5) is provided with lock sleeve (5) is installed in the interior screw (6) of mounting hole (3).
3. a kind of non-clearance worm and gear device according to claim 2 is characterized in that, also is equipped with between described axle sleeve (4) radial outside and mounting hole (3) radially inner side for the gripping sleeve (7) that axle sleeve (4) is clamped in the mounting hole (3).
4. a kind of non-clearance worm and gear device according to claim 2 is characterized in that, described mounting hole (3) port is provided with protective cover (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220182515 CN202659813U (en) | 2012-04-26 | 2012-04-26 | Clearance-free worm gear device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220182515 CN202659813U (en) | 2012-04-26 | 2012-04-26 | Clearance-free worm gear device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202659813U true CN202659813U (en) | 2013-01-09 |
Family
ID=47454722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220182515 Expired - Fee Related CN202659813U (en) | 2012-04-26 | 2012-04-26 | Clearance-free worm gear device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202659813U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104002199A (en) * | 2014-06-19 | 2014-08-27 | 烟台环球机床附件集团有限公司 | Gap compensation device of double-lead worm wheel and worm pair |
| CN105927711A (en) * | 2016-06-21 | 2016-09-07 | 苏州华徕光电仪器有限公司 | Worm and gear structure with adjustable transmission gaps |
| CN106112571A (en) * | 2016-08-12 | 2016-11-16 | 烟台环球机床装备股份有限公司 | A kind of numerical-control equal-division rotary table |
| CN108443418A (en) * | 2018-04-09 | 2018-08-24 | 重庆东渝中能实业有限公司 | A kind of worm type of reduction gearing |
-
2012
- 2012-04-26 CN CN 201220182515 patent/CN202659813U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104002199A (en) * | 2014-06-19 | 2014-08-27 | 烟台环球机床附件集团有限公司 | Gap compensation device of double-lead worm wheel and worm pair |
| CN105927711A (en) * | 2016-06-21 | 2016-09-07 | 苏州华徕光电仪器有限公司 | Worm and gear structure with adjustable transmission gaps |
| CN106112571A (en) * | 2016-08-12 | 2016-11-16 | 烟台环球机床装备股份有限公司 | A kind of numerical-control equal-division rotary table |
| CN108443418A (en) * | 2018-04-09 | 2018-08-24 | 重庆东渝中能实业有限公司 | A kind of worm type of reduction gearing |
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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: 20130109 Termination date: 20150426 |
|
| EXPY | Termination of patent right or utility model |