CN1064343A - The disc type cone envelope cylinder worm mismatch transmission - Google Patents
The disc type cone envelope cylinder worm mismatch transmission Download PDFInfo
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- CN1064343A CN1064343A CN 92100031 CN92100031A CN1064343A CN 1064343 A CN1064343 A CN 1064343A CN 92100031 CN92100031 CN 92100031 CN 92100031 A CN92100031 A CN 92100031A CN 1064343 A CN1064343 A CN 1064343A
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- worm
- worm screw
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Abstract
The invention belongs to the Worm and Worm Gear Driving field, is a kind of disc type cone envelope cylinder worm mismatch transmission.It is characterized in that the cylindrical worm with disc type cone instrument envelope becomes is meshed with the Archimedes's worm gear that is processed into the standard worm gear hob, its crossed axis angle is 90 °, and its worm screw profile of tooth is middle part dimpling shape in shaft section and normal section.
Advantage of the present invention is, improves the bearing capacity of former Archimedes' worm transmission, and its transmission efficiency, working life are improved, and avoided making the problem of the aspects such as design, manufacturing and inspection that the milled helicoids worm hobboing cutter brings simultaneously.
Description
The invention belongs to the Worm and Worm Gear Driving field.
Existing worm screw realizes that having of mismatch transmission is a variety of, as: American scholar, famous gear expert Buckingham propose to adopt involute worm (ZI worm screw) and involute cylindrical gear to realize the some Contact Transmission; The Japan scholar spills well. and propositions such as professor Gao Nan adopt involute worm and Archimedes's worm gear (ZA worm gear) to realize that point touches transmission; China famous gear scholar professors Zhu Jingzi etc. propose to adopt Archimedes' worm (ZA worm screw) and involute worm wheel (ZI worm gear) to realize the some Contact Transmission.Three kinds of above-mentioned worm screw mismatch type of belt drive, common characteristic is in the method for utilizing the manufacturing worm gear pair of finding out a kind of economy on the basis of existing means, but because separately restriction and shortcoming can't improve bearing capacity, transmission efficiency and the correction of the flank shape problem in worm screw is made and all be difficult to solve and control.The worm screw processing that has must be adopted special purpose machine tool.
So-called " mismatch transmission " is that a kind of two of transmission that makes matches conjugate tooth profiles in design and processing, on purpose gives difference, the some Contact Transmission of formation.With manufacturing and the problems such as alignment error, lubricating status and stress deformation that mainly solve worm gear pair.In order to make the transmission of worm and worm gear mismatch, be to have certain requirements for their processing technique.Existing data searching shows that the worm and gear of being processed can not be realized the worm screw mismatch transmission that the present invention is mentioned.As described, process the enveloping involute flank profile cylinder worm that obtains with a kind of special purpose machine tool, special tool and method about document CN1042224A.This worm screw is meshed with anti-package network worm gear, and its instantaneous contact is a straight line, non-some Contact Transmission.
The objective of the invention is, adopt disc type cone envelope cylinder worm (ZK
1Worm screw) realizes a some Contact Transmission with Archimedes's worm gear (ZA worm gear), can improve bearing capacity, transmission efficiency, keep under the constant condition of traditional processing technology, need not to make professional worm gear hob and solved correction of the flank shape problem in worm screw is made.
The present invention realizes like this, worm screw with disc type cone instrument envelope one-tenth, with Archimedes's worm gear engagement with standard worm gear hob (is the worm gear hob of basic helicoid with Archimedes' helicoid) processing, crossed axis angle between them is 90 °, the profile of tooth of worm screw is middle part dimpling shape in shaft section and normal section, make its worm and wheel realize the mismatch transmission.
Below in conjunction with figure explanation principle of the present invention.
Fig. 1: basic theories figure.
Fig. 2: the relation of worm screw and hobboing cutter.
Fig. 3: involute worm forms.
Fig. 4: the relation of involute worm and Archimedes's hobboing cutter.
Fig. 5: the scheme of installation of tool processes worm screw.
As shown in Figure 1, straight line and a conical surface associated movement tangent with the conical surface, this straight line then form skew surface with respect to the worm spiral face. The contact wire of worm spiral face and the conical surface is a bus of worm spiral face, and intersects with straight line. Near this bus the conical surface and the contact condition of worm spiral face can be similar to and be considered as contacting of the conical surface and saddle-shaped surface. The skew surface that is formed by straight lines in addition also can be considered horse-saddle in the vicinity (comprising this straight line) of this straight line. Therefore, the skew surface that worm spiral face and straight line form on the conical surface worm spiral face bus and the intersection point place of straight line contact, the conical surface then becomes its public cone of tangents face. Its contact situation as shown in Figure 2.
When the diameter of disc type cone instrument was tending towards infinity, conical surface instrument is complanation instrument (rack-kind tool) then, and the worm screw that its envelope forms then is the involute helicoid worm screw, as shown in Figure 3. At this moment the contact wire of plane and involute helicoid is a straight line, i.e. the generation line of involute helicoid. And the contact on involute helicoid plane can be similar to and be considered as contacting of plane and cylinder, as shown in Figure 4.
By the setting of disc type cone tool diameter, can make this worm spiral face be positioned at the entity side of skew surface. We are the flank of tooth of this helicoid as worm screw like this, with the basic helicoid (in fact be Archimedes' helicoid) of skew surface as hobboing cutter, the worm gear of this hobboing cutter generate then is Archimedes's worm gear, disc type cone instrument enveloping worm and Archimedes's worm gear connect by a contact point like this, correct screw be can transmit in theory, thereby cylindrical worm and Archimedes's worm gear mismatch engaged transmission with disc type cone instrument envelope one-tenth realized. When the diameter of disc type cone instrument was tending towards infinity, at this moment situation then can realize involute cylindrical worm and Archimedes's worm gear mismatch engaged transmission as shown in Figure 3 and Figure 4.
Embodiment:
Worm gear is to adopt existing standard Ji Mide worm gear (ZA worm gear), and it is that ZA snail hobboing cutter by standard processes, and need not dedicated tool and equipment, and processing technology is constant.
When machining worm, adopt machine tool, and shape the method machining worm with envelope with the disc type cone instrument, replace former ZA worm screw and cut the method that shapes.When suitable selection disc type cone tool parameters, can guarantee that the worm screw of processing is middle part dimpling shape in axial cross section and normal section.Described instrument can satisfy following condition:
D
W＞（0.5q+2）M
In the formula: D
W-disc type cone instrument external diameter (mm)
Q-worm screw characteristic coefficient,
M-worm screw axial module (mm)
Its order of magnitude according to the form below of average projection amount at worm screw profile of tooth middle part is selected:
| Worm screw modulus mm | 1≤?M?≤?10 | 10＜?M?≤?25 | ||
| Number of threads Z 1 | 1，2，3 | 4，5，6 | 1，2，3 | 4，5，6 |
| The average projection amount (mm) in middle part | 0.010～ 0.090 | 0.050～ 0.400 | 0.100～ 0.800 | 0.400～ 2.000 |
Select suitable conical surface tool parameters for use, as tool diameter etc., make the worm screw profile of tooth that shapes the middle part convex occur, projection amount is 0.010～2.000mm, the engagement of the worm screw of this profile of tooth and Archimedes's worm gear has good initial contact position and running-in characteristic, and processing and the alignment error to worm gear pair has certain immunity simultaneously.
Worm screw (ZK of the present invention
1Worm screw), form the conical surface instrument spade angle α of worm tooth-surface
0＜20 °, the ZK that is proposed
1Worm screw only is defined as 20 ° to the axial profile angle of worm screw itself, that is to say, equates with the worm gear transverse pressure angle of standard Archimedes worm gear hob processing.Equally, the reference circle of worm lead angle equates that with worm gear hob standard pitch circle lead angle modulus of worm screw and standard pitch diameter equate with the modulus and the standard pitch diameter of worm gear hob respectively.
The parameter of corresponding disc type cone instrument is as follows:
Tool diameter D
W=80 ± 10mm
Instrument spade angle α
0=19.79 ± 0.02 °
Instrument established angle γ
0=11 ° 18 ' 36 ", (equaling reference circle of worm angle of lead γ)
During the tool processes worm screw, the installation of instrument all can realize on lathes such as worm grinder, thread-grinding machine or relief grinding lathe as shown in Figure 5.
The worm screw profile of tooth middle part dimpling amount that shapes is: the average projection amount in middle part=40 ± 5 μ m.
Advantage of the present invention is:
1, the manufacturing of worm and gear is simple, economical, need not special equipment, need not new technology and special purpose machine tool.
2, worm screw is adopted the envelope forming process, and such as milling or grinding, worm screw can be made the hard flank of tooth, and its machining accuracy height is highly polished, the tooth face hardness height. Thereby improved the transmission performance of worm gear pair, such as bearing capacity, transmission efficiency, service life etc.
3, adjustment that can be by conical surface tool parameters changes the worm screw profile of tooth that shapes, and reaches the purpose of worm screw mending teeth of gear, profile of tooth preferably when obtaining to match with the ZA worm gear.
4, can guarantee that by the selection of the conical surface tool parameters worm screw of processing is a dimpling shape at tooth form of axial direction, thereby reach ZK
1, when worm screw and ZA worm drive, having reasonably initial contact (area) pattern and good running-in, manufacturing and the alignment error to worm gear pair has certain immunity simultaneously, under the condition that does not improve Machining Precision of Worm Gear, improved the contact condition of worm gear pair.
Claims (6)
1, a kind of disc type cone envelope cylinder worm mismatch transmission, it is characterized in that: with the cylindrical worm of disc type cone instrument envelope one-tenth, be meshed with the Archimedes's worm gear that is processed into the standard worm gear hob, its crossed axis angle is 90 °, and its worm screw profile of tooth is middle part dimpling shape in shaft section and normal section.
2, by the described mismatch transmission of claim 1, it is characterized in that: described worm screw profile of tooth microprotrusion amount is 0.010～2.000mm.
3, by claim 1,2 described mismatch transmissions, it is characterized in that: adopt non-special purpose machine tool machining worm, non-special-purpose worm gear hob machining worm wheel.
4, by the described mismatch transmission of claim 1, it is characterized in that: the outer diameter D of disc type cone instrument
W＞(0.5q+2) M(mm), wherein q is the worm screw characteristic coefficient, M worm screw axial module.
5, by the transmission of the described worm screw mismatch of claim 1, it is characterized in that: the axial profile angle of described worm screw is 20 °, 20 ° of worm gear transverse pressure angles, and the reference circle of worm lead angle rises with machining worm wheel hobboing cutter standard pitch circle spiral and equates.
6, by claim 1,5 described worm screw mismatch transmissions, it is characterized by: modulus of worm screw and standard pitch diameter equate with the modulus and the standard pitch diameter of machining worm wheel hobboing cutter respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92100031 CN1027829C (en) | 1992-01-09 | 1992-01-09 | Disc type cone envelope cylinder worm mismatch drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92100031 CN1027829C (en) | 1992-01-09 | 1992-01-09 | Disc type cone envelope cylinder worm mismatch drive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1064343A true CN1064343A (en) | 1992-09-09 |
| CN1027829C CN1027829C (en) | 1995-03-08 |
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ID=4938312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92100031 Expired - Fee Related CN1027829C (en) | 1992-01-09 | 1992-01-09 | Disc type cone envelope cylinder worm mismatch drive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1027829C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107091316A (en) * | 2017-05-25 | 2017-08-25 | 扬州大学 | The detection method of Archimedes's cylindrical worm tooth form |
| CN107448552A (en) * | 2017-08-31 | 2017-12-08 | 华南理工大学 | With the oblique line gear mechanism of plane spiral of Archimedes construction active line tooth |
| CN108561519A (en) * | 2018-06-01 | 2018-09-21 | 江苏理工学院 | A kind of large pressure angle worm gearing |
| CN108775378A (en) * | 2018-06-01 | 2018-11-09 | 江苏理工学院 | A kind of large pressure angle worm screw hoisting mechanism |
| CN108775379A (en) * | 2018-06-01 | 2018-11-09 | 江苏理工学院 | A kind of large pressure angle double worm mechanism |
| CN109027185A (en) * | 2018-09-11 | 2018-12-18 | 东北大学 | A kind of Mismatched mesh type cone envelope spiroid gear pair and its manufacturing method |
-
1992
- 1992-01-09 CN CN 92100031 patent/CN1027829C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107091316A (en) * | 2017-05-25 | 2017-08-25 | 扬州大学 | The detection method of Archimedes's cylindrical worm tooth form |
| CN107448552A (en) * | 2017-08-31 | 2017-12-08 | 华南理工大学 | With the oblique line gear mechanism of plane spiral of Archimedes construction active line tooth |
| CN108561519A (en) * | 2018-06-01 | 2018-09-21 | 江苏理工学院 | A kind of large pressure angle worm gearing |
| CN108775378A (en) * | 2018-06-01 | 2018-11-09 | 江苏理工学院 | A kind of large pressure angle worm screw hoisting mechanism |
| CN108775379A (en) * | 2018-06-01 | 2018-11-09 | 江苏理工学院 | A kind of large pressure angle double worm mechanism |
| CN108561519B (en) * | 2018-06-01 | 2023-04-28 | 江苏理工学院 | Large-pressure-angle worm transmission mechanism |
| CN108775379B (en) * | 2018-06-01 | 2023-04-28 | 江苏理工学院 | Big pressure angle double worm drive mechanism |
| CN108775378B (en) * | 2018-06-01 | 2023-04-28 | 江苏理工学院 | Large-pressure-angle worm lifting mechanism |
| CN109027185A (en) * | 2018-09-11 | 2018-12-18 | 东北大学 | A kind of Mismatched mesh type cone envelope spiroid gear pair and its manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1027829C (en) | 1995-03-08 |
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