CN204677692U - A kind of worm gear structure - Google Patents
A kind of worm gear structure Download PDFInfo
- Publication number
- CN204677692U CN204677692U CN201520284410.3U CN201520284410U CN204677692U CN 204677692 U CN204677692 U CN 204677692U CN 201520284410 U CN201520284410 U CN 201520284410U CN 204677692 U CN204677692 U CN 204677692U
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- CN
- China
- Prior art keywords
- worm gear
- list half
- half worm
- inner concave
- left list
- 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 - Fee Related
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- Gear Transmission (AREA)
Abstract
The utility model provides a kind of worm gear structure, belongs to field of mechanical technique.It solving its worm gear of existing worm gear structure adopts Shooting Technique to produce the problem that can not realize the demoulding.This worm gear structure, comprise the worm gear and worm screw that are connected with a joggle each other, on the tooth of described worm gear, middle part is provided with inner concave, worm gear comprises left list half worm gear and right veneer worm gear, above-mentioned inner concave is divided equally by described left list half worm gear and right list half worm gear, described left list half worm gear and right list half worm gear can form in respective independent molding and forming, and the worm gear that the formation that can be mutually permanently connected is complete.This worm gear structure has that transmission stability is good, transmission efficiency is high, noise is little and adopts Shooting Technique to produce the advantage that can realize the demoulding.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of worm gear structure, particularly a kind of worm gear structure be used on automobile-used final controlling element reducing gear.
Background technique
Driving mechanism in automobile-used final controlling element reducing gear is generally the helical gear worm drive as Fig. 1, by the transmission of the realizable force that is connected with a joggle between helical gear 1 and worm screw 2, but Problems existing is: its engagement is point cantact, transmission stability is poor, reduce moment of torsion thus the transmission effect of power bad and reduce transmission effect, also increase gearing noise simultaneously.In order to overcome the problems referred to above, people have made above-mentioned helical gear worm gearing into worm gear structure as Fig. 2, its worm gear structure comprises the worm gear and worm screw 2 that are connected with a joggle, worm gear is provided with the tooth of multiple even setting, between tooth and tooth, there is gap, the middle part of its tooth is provided with inner concave 31, and during engagement driving, its inner concave 31 contacts with screw rod face and connects (namely face is engaged).This structure can be improved transmission stability, improves moment of torsion transmission efficiency and reduce the object of noise, but but there is other problems: its worm gear adopts injection molding process to produce usually, and this worm gear arrangement cannot the demoulding, on producing, bring very large problem.
Summary of the invention
The purpose of this utility model there are the problems referred to above for existing technology, proposes a kind of worm gear structure that can make worm gear easy demoulding when adopting Shooting Technique to manufacture.
The purpose of this utility model realizes by following technical proposal: a kind of worm gear structure, comprise the worm gear and worm screw that are connected with a joggle each other, on the tooth of described worm gear, middle part is provided with inner concave, it is characterized in that: described worm gear comprises left list half worm gear and right veneer worm gear, above-mentioned inner concave is divided equally by described left list half worm gear and right list half worm gear, described left list half worm gear and right list half worm gear can form in respective independent molding and forming, and the worm gear that the formation that can be mutually permanently connected is complete.
In above-mentioned a kind of worm gear structure, being fixedly connected with between described left list half worm gear and right list half worm gear is: three axle location riveteds are fixedly connected with, namely on left list half worm gear, three mounting holes are offered, right list half worm gear arranging three rivets matched with above-mentioned three mounting holes, being fixedly connected with by rivet being fixedly mounted on corresponding mounting hole.
In above-mentioned a kind of worm gear structure, the bolt thread that is fixedly connected as between described left list half worm gear and right list half worm gear connects.
Compared with prior art, this worm gear structure tool has the following advantages:
1, its Worm Wheel System is face engagement, improves its transmission stability and transmission efficiency thereof, reduces noise simultaneously;
2, its worm gear is fixedly mounted by left list half worm gear and right list half worm gear and is formed by connecting, and its left list half worm gear and right list half worm gear can realize Shooting Technique manufacture and the energy demoulding, can realize Shooting Technique and carry out production worm gear, worm gear be produced more simple and convenient.
Accompanying drawing explanation
Fig. 1 is bevel gear and worm transmission structure schematic diagram of the prior art.
Fig. 2 is drive structure of gear worm schematic diagram of the prior art.
Fig. 3 is worm gear arrangement schematic diagram of the present utility model.
In figure, 1, helical gear; 2, worm screw; 3, worm gear; 31, inner concave; 32, left list half worm gear; 33, right list half worm gear; 4, mounting hole; 5, rivet.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 3, this worm gear structure comprises the worm gear and worm screw 2 that are connected with a joggle each other, on the tooth of worm gear, middle part is provided with inner concave 31, during engagement driving, its inner concave 31 and the clearance plane of two between cog on worm screw 2 are that face contacts thus the face that realizes is engaged, such transmission stability improves, and transmission efficiency is high simultaneously, the noise contacting its contact friction due to face also corresponding point contact little.
Worm gear comprises left list half worm gear 32 and right veneer worm gear, inner concave 31 is divided equally by left list half worm gear 32 and right list half worm gear 33, after inner concave 31 divides equally, due to the structure left list half worm gear 32 and each self-structure of right list half worm gear 33 not having both sides protrude middle indent, realize conveniently stripped after shaping by injection molding process like this, production be more prone to, high efficiency and low cost.Its left list half worm gear 32 is fixedly connected with by three axle location riveteds with right list half worm gear 33, namely on left list half worm gear 32, three mounting holes 4 are offered, right list half worm gear 33 arranging three rivets 5 matched with three mounting holes 4, being fixedly connected with by rivet 5 being fixedly mounted on corresponding mounting hole 4.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Although more employ the terms such as helical gear 1, worm screw 2, worm gear, inner concave 31, left list half worm gear 32, right list half worm gear 33, mounting hole 4, rivet 5 herein, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present utility model more easily; The restriction that they are construed to any one additional is all contrary with the utility model spirit.
Claims (3)
1. a worm gear structure, comprise the worm gear (3) and worm screw (2) that are connected with a joggle each other, on the tooth of described worm gear (3), middle part is provided with inner concave (31), it is characterized in that: described worm gear (3) comprises left list half worm gear (32) and right veneer worm gear, above-mentioned inner concave (31) is divided equally by described left list half worm gear (32) and right list half worm gear (33), described left list half worm gear (32) and right list half worm gear (33) can form in respective independent molding and forming, and the worm gear (3) that the formation that can be mutually permanently connected is complete.
2. a kind of worm gear structure according to claim 1, it is characterized in that, being fixedly connected with between described left list half worm gear (32) and right list half worm gear (33) is: three axle location riveteds are fixedly connected with, namely on left list half worm gear (32), three mounting holes (4) are offered, three rivets (5) that the upper setting of right list half worm gear (33) matches with above-mentioned three mounting holes (4), be fixedly connected with by rivet (5) being fixedly mounted on corresponding mounting hole (4).
3. a kind of worm gear structure according to claim 1, is characterized in that, the bolt thread that is fixedly connected as between described left list half worm gear (32) and right list half worm gear (33) connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520284410.3U CN204677692U (en) | 2015-04-30 | 2015-04-30 | A kind of worm gear structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520284410.3U CN204677692U (en) | 2015-04-30 | 2015-04-30 | A kind of worm gear structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204677692U true CN204677692U (en) | 2015-09-30 |
Family
ID=54177385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520284410.3U Expired - Fee Related CN204677692U (en) | 2015-04-30 | 2015-04-30 | A kind of worm gear structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204677692U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246872A (en) * | 2016-08-31 | 2016-12-21 | 浙江捷昌线性驱动科技股份有限公司 | A kind of worm gear arrangement |
| CN110307313A (en) * | 2018-03-20 | 2019-10-08 | 罗伯特·博世有限公司 | Spindle driver and method and comfort type driver for manufacturing spindle driver |
-
2015
- 2015-04-30 CN CN201520284410.3U patent/CN204677692U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246872A (en) * | 2016-08-31 | 2016-12-21 | 浙江捷昌线性驱动科技股份有限公司 | A kind of worm gear arrangement |
| CN110307313A (en) * | 2018-03-20 | 2019-10-08 | 罗伯特·博世有限公司 | Spindle driver and method and comfort type driver for manufacturing spindle driver |
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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: 20150930 Termination date: 20160430 |