CN206555391U - A kind of worm screw with double involute arc flank profil - Google Patents
A kind of worm screw with double involute arc flank profil Download PDFInfo
- Publication number
- CN206555391U CN206555391U CN201620987765.3U CN201620987765U CN206555391U CN 206555391 U CN206555391 U CN 206555391U CN 201620987765 U CN201620987765 U CN 201620987765U CN 206555391 U CN206555391 U CN 206555391U
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- China
- Prior art keywords
- worm screw
- flank profil
- worm
- teeth portion
- utility
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- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of worm screw with double involute arc flank profil, belong to Worm Wheel System technical field.The utility model includes worm body and worm screw teeth portion, worm screw teeth portion is located at the middle part of worm body, the cross section profile geometry of worm screw teeth portion is involute arc, the shaft section profile geometry of worm screw teeth portion is also involute arc, so as to form worm screw compound arcuate flank profil, worm screw compound arcuate flank profil matches with worm gear flank profil, and worm screw compound arcuate flank profil, provided with oil depression is held, engaged transmission is realized in the contact that smoothly coincide close to the both sides up and down of reference circle along worm gear flank profil at reference circle.The utility model passes through the selection of the two involute segmental arcs in cross section and shaft section and compound, contact area can be increased, reduce contact stress, simultaneously, make the oily spatial distribution of appearance more reasonable, the power and greasy property of transmission are improved, a variety of unfavorable factors in Worm Wheel System are substantially reduced, application effect is lifted.
Description
Technical field
The utility model is related to Worm Wheel System technical field, has double involute arc more specifically to one kind
The worm screw of shape flank profil.
Background technology
Snail Worm Wheel System is put into practice as a kind of use of the existing centuries of ancient basic transmission form.Actually should
In, Worm Wheel System have the advantages that gearratio big, compact conformation and can self-locking, while there is also transmission efficiency is low, mill
Big shortcoming is damaged, is used widely in the deceleration transmission of low-speed heave-load, enveloping worm therein matches helical teeth wheel-type worm gear
Since worm-drive is applied from 19th-century by British Hengdeli utility model, it has been much larger than always with multiple tooth engagement bearing capacity
Common cylinder worm screw and be used in many heavily loaded occasions, it is big in registration but also because worm screw engages to the multiple tooth envelope of worm gear
While increasing, efficiency it is low with wearing and tearing big the problem of more protrude, especially in worm screw close to the tooth engagement place at middle part, worm tooth and snail
The contact form of the gear teeth contacts for point, and one side contact stress is big, and another aspect lubricant grease nowhere adheres to, and working condition is especially
It is bad.People also further produce a variety of twice-envelopings on the basis of this kind of worm screw by way of taking conjugation and processing
Worm screw, although such twice-enveloping worm screw engagement place contact form makes moderate progress, the attachment of engagement place lubricant grease and supply shape
Condition is still undesirable, and it is transmission finished product running-in processing that conjugation processing, which practically equals to, and its economy and convenience are not yet
It is good.
Utility model content
1st, the problem of solving
For the problems such as existing Worm Wheel System efficiency is low, abrasion is big, lubricant effect is poor, the utility model provides one
Kind of the worm screw with double involute arc flank profil, its worm screw cross section and shaft section flank profil are to match with the flank profil of worm gear
Involute, this compound arcuate flank profil, contact when it is engaged is in almost the linear contact lay in overall length direction, and in increase contact surface
Product, while reducing contact stress, also has appearance oil-gap lubricating oil is adhered near contact zone, improves the profit of transmission
Slip energy, substantially reduces the unfavorable factor of Worm Wheel System, lifts application effect.
2nd, technical scheme
A kind of worm screw with double involute arc flank profil, including worm body and worm screw teeth portion, worm screw teeth portion are located at worm screw
The middle part of body, the cross section profile geometry of described worm screw teeth portion is involute arc, the shaft section profile geometry of worm screw teeth portion
Also it is involute arc, so that worm screw compound arcuate flank profil is formed, described worm screw compound arcuate flank profil and worm gear flank profil phase
Match somebody with somebody, worm screw compound arcuate flank profil, provided with oil depression is held, is put down at reference circle close to the both sides up and down of reference circle along worm gear flank profil
Engaged transmission is realized in sliding identical contact.
As further improvement of the utility model, the double involute compound arcuate flank profil can be applied to anchor ring or post
Surface-worm.
3rd, beneficial effect
Compared to prior art, the beneficial effects of the utility model are：
(1) a kind of worm screw with double involute arc flank profil of the present utility model, cross section and shaft section flank profil are
The involute matched with the flank profil of worm gear, when being engaged with pairing worm gear, increases contact area, improves contact stiffness.
(2) a kind of worm screw with double involute arc flank profil of the present utility model, carries in flank profil with appearance oil-gap
The greasy property of high transmission, grease surrounded all the time in transmission process region of engagement and can with worm screw worm drive side
To constantly being supplemented to engagement center, so as to substantially reduce the unfavorable factor of Worm Wheel System, application effect is lifted.
(3) a kind of worm screw with double involute arc flank profil of the present utility model, passes through cross section and shaft section two
The selection of involute segmental arc and compound, makes the oily spatial distribution of appearance more reasonable, greatly improves the power and greasy property of transmission.
Brief description of the drawings
Fig. 1 is the cross-sectional configuration schematic diagram of worm screw teeth portion in the utility model；
Fig. 2 is the shaft section structural representation of worm screw teeth portion in the utility model；
Fig. 3 is that worm and gear is meshed structural representation in the utility model；
The oily plot structure schematic diagram in contact zone and appearance when Fig. 4 engages for worm tooth in the utility model with worm-gear toothing.
In figure：1st, worm screw compound arcuate flank profil；101st, cross section flank profil；102nd, shaft section flank profil；2nd, worm gear flank profil；3rd, hold
Oil depression；4th, mating contact area；5th, reference circle.
Embodiment
The utility model is further described below with reference to specific embodiments and the drawings：
Embodiment 1
Applicant is proposed directly that the tooth Profile Design of worm screw is in pairs by the further investigation and experiment to Worm Wheel System
Involute compound arcuate, taking into account the contact form of the flank of tooth and holding oily space improves, to eliminate Worm Wheel System because of insufficient lubrication
With contact stress is excessive and the big shortcoming of efficiency low abrasion that produces, can apply on various anchor rings and cylinder worm screw.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a kind of worm screw with double involute arc flank profil of the present embodiment, including
Worm body and worm screw teeth portion, worm screw teeth portion are located at the middle part of worm body, and the cross section flank profil 101 of above-mentioned worm screw teeth portion is shaped as
Involute arc, the shape of shaft section flank profil 102 of worm screw teeth portion is also involute arc, so as to form worm screw compound arcuate flank profil
1, above-mentioned worm screw compound arcuate flank profil 1 matches with worm gear flank profil 2, and worm screw compound arcuate flank profil 1 is at reference circle 5 provided with appearance
Oil depression 3, engaged transmission is realized in the contact that smoothly coincide close to the both sides up and down of reference circle 5 along worm gear flank profil 2.
Preferably, the double involute compound arcuate flank profil, can be applied to anchor ring or cylinder worm screw.
A kind of worm screw with double involute arc flank profil of the present embodiment, cross section and shaft section flank profil are and worm gear
The involute that matches of flank profil, when engage with pairing worm gear, increase contact area, raising contact stiffness；Simultaneously in flank profil
With the greasy property for holding oil-gap raising transmission, grease surrounds region of engagement and can be with snail all the time in transmission process
The worm drive direction of bar constantly to engagement center supplement, so as to substantially reduce the unfavorable factor of Worm Wheel System, is lifted
Application effect；In addition, by the selection of the two involute segmental arcs in cross section and shaft section and compound, making the oily spatial distribution of appearance more
Rationally, the power and greasy property of transmission are greatly improved.
Schematically the utility model and embodiments thereof are described above, the description does not have restricted, accompanying drawing
Shown in be also one of embodiment of the present utility model, actual structure is not limited thereto.So, if this area
Those of ordinary skill enlightened by it, do not departing from the case that the utility model creates objective, designed without creative
The frame mode similar to the technical scheme and embodiment, all should belong to protection domain of the present utility model.
Claims (2)
1. a kind of worm screw with double involute arc flank profil, it is characterised in that：Including worm body and worm screw teeth portion, worm screw teeth portion
The middle part of worm body is located at, the cross section flank profil (101) of described worm screw teeth portion is shaped as involute arc, the axle of worm screw teeth portion
Sectional profile (102) shape is also involute arc, so as to form worm screw compound arcuate flank profil (1), described worm screw is combined arc
Shape flank profil (1) matches with worm gear flank profil (2), and worm screw compound arcuate flank profil (1) is recessed (3) at reference circle (5) place provided with oil is held,
In the both sides up and down close to reference circle (5), along worm gear flank profil (2), smoothly engaged transmission is realized in identical contact.
2. a kind of worm screw with double involute arc flank profil according to claim 1, it is characterised in that：Described pair is gradually opened
Line compound arcuate flank profil, can be applied to anchor ring or cylinder worm screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620987765.3U CN206555391U (en) | 2016-08-29 | 2016-08-29 | A kind of worm screw with double involute arc flank profil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620987765.3U CN206555391U (en) | 2016-08-29 | 2016-08-29 | A kind of worm screw with double involute arc flank profil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206555391U true CN206555391U (en) | 2017-10-13 |
Family
ID=60369503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620987765.3U Withdrawn - After Issue CN206555391U (en) | 2016-08-29 | 2016-08-29 | A kind of worm screw with double involute arc flank profil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206555391U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151458A (en) * | 2016-08-29 | 2016-11-23 | 马鞍山大智能机械科技有限公司 | A kind of worm screw with double involute arc flank profil |
-
2016
- 2016-08-29 CN CN201620987765.3U patent/CN206555391U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151458A (en) * | 2016-08-29 | 2016-11-23 | 马鞍山大智能机械科技有限公司 | A kind of worm screw with double involute arc flank profil |
| CN106151458B (en) * | 2016-08-29 | 2019-04-30 | 马鞍山大一智能机械科技有限公司 | A kind of worm screw with double involute arc flank profil |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171013 Effective date of abandoning: 20190430 |