CN201621231U - Large-gear-ratio gearbox - Google Patents
Large-gear-ratio gearbox Download PDFInfo
- Publication number
- CN201621231U CN201621231U CN2010201509798U CN201020150979U CN201621231U CN 201621231 U CN201621231 U CN 201621231U CN 2010201509798 U CN2010201509798 U CN 2010201509798U CN 201020150979 U CN201020150979 U CN 201020150979U CN 201621231 U CN201621231 U CN 201621231U
- Authority
- CN
- China
- Prior art keywords
- worm
- input
- stage
- output shaft
- stage worm
- 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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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
- F16H1/12—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes
- F16H1/16—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
- Gear Transmission (AREA)
Abstract
The utility model relates to a large-gear-ratio gearbox which adopts a two-stage worm and gear driven structure, namely a belt pulley drives a first-stage worm and a first-stage worm gear to rotate. The first-stage worm gear drives a second-stage worm and a second-stage worm gear to rotate. The second-stage worm gear drives an output shaft to rotate. An input worm is arranged in the corresponding hole of the gearbox body by a bearing, an input worm blank cap and an input worm through cap, an input belt pulley is fixed on the outer end of the input worm; the first-stage worm gear meshed with the input worm is arranged on the second-stage worm by keys, the second-stage worm is arranged in the corresponding hole of the gearbox by a big second-stage worm sheathing cover and a small second-stage worm sheathing cover; the second-stage worm gear meshed with the second-stage worm is arranged on the output shaft by the keys, the output shaft is arranged in the corresponding hole of the gearbox body by an output shaft blank cap and an output shaft through cap; and a cover plate of the gearbox body is fixed on the gearbox body by a screw and a spring washer. The large-gear-ratio gearbox has the advantages of compact structure, small volume and large gear ratio.
Description
Technical field
The utility model relates to the engineering goods parts, especially the big speed ratio gearbox.
Background technique
Gearbox is the engineering goods transmission part of using always, and it is widely applied in the various machinery equipments.Gearbox is generally gear transmission, and its transmission efficiency height can transmit bigger power.But when velocity ratio was too big, if use gear transmission, its structure can be huge thereupon.
Summary of the invention
The purpose of this utility model provides a kind of big speed ratio gearbox, has big speed ratio, and the compact structure volume is little.
The technological scheme that its technical problem that solves the utility model adopts is: adopt the structure of two-stage worm and gear transmission, promptly belt pulley drives the rotation of one-level worm screw, drives first-stage worm gear and rotates.The rotation of first-stage worm gear drives second-stage worm drives second-stage worm gear and rotates.The rotation of second-stage worm gear drives output shaft.
Lid, big sealing ring, output shaft cover, import worm screw stifle, small sealing ring and bearing and form the big speed ratio gearbox thoroughly thoroughly by casing, the big upper shield of second-stage worm, input belt wheel, input worm screw, first-stage worm gear, second-stage worm, box cover, second-stage worm gear, output shaft stifle, output shaft, the little upper shield of second-stage worm, input worm screw, it is characterized in that: the input worm screw is contained in the corresponding aperture of casing by bearing, input worm screw stifle and the saturating lid of input worm screw, and the input belt wheel is fixed on the outer end of input worm screw; Be contained on the second-stage worm by key with the first-stage worm gear of input worm meshing, second-stage worm is contained in the corresponding aperture of casing by big upper shield of second-stage worm and the little upper shield of second-stage worm; Be contained on the output shaft by key with the second-stage worm gear of second-stage worm engagement, output shaft is contained in the corresponding aperture of casing by output shaft stifle and the saturating lid of output shaft; Box cover is fixed on above the casing with screw and spring washer.
The advantage of this big speed ratio gearbox is: compact structure volume close steps is big.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described.
Accompanying drawing is the erection drawing of big speed ratio gearbox.
Fig. 1 is a plan view, is the B-B partial sectional view of Fig. 2.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the C-C sectional view of Fig. 1.
1. casings among the figure, the 2. big upper shield of second-stage worm, 3. input belt wheel, 4. import worm screw, 5. first-stage worm gear, 6. second-stage worm, 7. box cover, 8. second-stage worm gear, 9. output shaft stifle, 10. output shaft, the little upper shield of 11. second-stage worm, 12. input worm screws are covered thoroughly, 13. big sealing ring, 14. output shafts cover thoroughly, 15. input worm screw stifles, 16. small sealing ring, 17. bearings.
Embodiment
Accompanying drawing is the big speed ratio gearbox that is used for jet-air rice polisher.
In the accompanying drawing 3, input belt wheel (3) is contained in to cooperate on the diameter of axle of importing worm screw (4) left side and is H7/h6, fixes by the plane on the bolt and the diameter of axle.The tolerance that the inner ring of bearing (17) is contained in input worm screw (4) last input belt wheel (3) the right is on the diameter of axle of k6, and the outer ring of bearing (17) is contained in the corresponding aperture of casing (1).The input worm screw is covered (12) thoroughly and is fixed in the corresponding aperture of casing (1) with bolt and corresponding plain washer, between input belt wheel (3) and bearing (17).The input worm screw is covered the felt small sealing ring (16) that (12) are equipped with the sealing diameter of axle thoroughly.Import in the corresponding aperture of worm screw stifle (15) with bolt and corresponding plain washer static housing (1), the endoporus of input worm screw stifle (15) is contained in to cooperate on the diameter of axle of importing worm screw (4) the right and is F8/h7.It is coaxial measure-alike through hole that casing (1) is gone up the hole that bearing (17) and input worm screw stifle (15) are installed, and input worm screw stifle (15) is H7/f7 with cooperating of this hole.Input worm screw (4) is a left hand worm.
In the accompanying drawing 1, the first-stage worm gear (5) that meshes with input worm screw (4) is contained on the second-stage worm (6) by key.The big upper shield of second-stage worm (2) is fixed in the corresponding aperture on casing (1) left side with bolt and corresponding plain washer, and the little upper shield of second-stage worm (11) is fixed in the corresponding aperture on casing (1) the right with bolt and corresponding plain washer.The cylinder at second-stage worm (6) two ends is contained in that to cooperate in the endoporus of big upper shield of second-stage worm (2) and the little upper shield of second-stage worm (11) all be F8/h7.The small end face restriction second-stage worm (6) and the first-stage worm gear (5) of big upper shield of second-stage worm (2) and the little upper shield of second-stage worm (11) move axially, and certain clearance is arranged.Second-stage worm (6) is a right hand worm.
In the accompanying drawing 2, be contained on the output shaft (10) by key with the second-stage worm gear (8) of second-stage worm (6) engagement, output shaft stifle (9) is fixed in the corresponding aperture on casing (1) left side with bolt and corresponding plain washer, and output shaft covers (14) thoroughly and is fixed in the corresponding aperture on casing (1) the right with bolt and corresponding plain washer.Output shaft (10) is contained in output shaft stifle (9) and output shaft and covers thoroughly that to cooperate in the hole of (14) all be F8/h7.Output shaft covers the felt big sealing ring (13) that (14) are equipped with the sealing diameter of axle thoroughly.It is coaxial measure-alike through hole that casing (1) go up to be installed the hole that output shaft stifle (9) and output shaft cover (14) thoroughly, this hole with the measure-alike of the hole of importing worm screw stifle (15) is installed.In order that the identical cutter of time standby of casing (1) processing.
In order to make the axle that is contained in the casing (1) obtain sufficient lubrication, all there is oil inlet hole the top of big upper shield of second-stage worm (2) and the little upper shield of second-stage worm (11), in their endoporus oil storage tank is arranged.
Box cover (7) is fixed on above the casing (1) with screw and spring washer.
Claims (6)
1. big speed ratio gearbox, lid, big sealing ring, output shaft cover, import worm screw stifle, small sealing ring and bearing thoroughly and form thoroughly by casing, the big upper shield of second-stage worm, input belt wheel, input worm screw, first-stage worm gear, second-stage worm, box cover, second-stage worm gear, output shaft stifle, output shaft, the little upper shield of second-stage worm, input worm screw, it is characterized in that: the input worm screw is contained in the corresponding aperture of casing by bearing, input worm screw stifle and the saturating lid of input worm screw, and the input belt wheel is fixed on the outer end of input worm screw; Be contained on the second-stage worm by key with the first-stage worm gear of input worm meshing, second-stage worm is contained in the corresponding aperture of casing by big upper shield of second-stage worm and the little upper shield of second-stage worm; Be contained on the output shaft by key with the second-stage worm gear of second-stage worm engagement, output shaft is contained in the corresponding aperture of casing by output shaft stifle and the saturating lid of output shaft; Box cover is fixed on above the casing with screw and spring washer.
2. big speed ratio gearbox according to claim 1 is characterized in that: the input belt wheel is contained in to cooperate on the diameter of axle of importing the worm screw left side and is H7/h6, fixes by the plane on the bolt and the diameter of axle.
3. double worm and gear speed reducer according to claim 1 is characterized in that: the endoporus of input worm screw stifle is contained in to cooperate on the diameter of axle of importing worm screw the right and is F8/h7.
4. big speed ratio gearbox according to claim 1 is characterized in that: the hole that bearing and input worm screw stifle are installed on the casing is coaxial measure-alike through hole, and input worm screw stifle is H7/f7 with cooperating of this hole.
5. big speed ratio gearbox according to claim 1 is characterized in that: the input worm screw is a left hand worm, and second-stage worm is a right hand worm.
6. big speed ratio gearbox according to claim 1 is characterized in that: the hole that output shaft stifle and the saturating lid of output shaft are installed on the casing is coaxial measure-alike through hole, and the hole of installation input worm screw stifle is measure-alike on this hole and the casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201509798U CN201621231U (en) | 2010-04-07 | 2010-04-07 | Large-gear-ratio gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201509798U CN201621231U (en) | 2010-04-07 | 2010-04-07 | Large-gear-ratio gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201621231U true CN201621231U (en) | 2010-11-03 |
Family
ID=43024686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201509798U Expired - Fee Related CN201621231U (en) | 2010-04-07 | 2010-04-07 | Large-gear-ratio gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201621231U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102141116A (en) * | 2011-02-01 | 2011-08-03 | 河海大学常州校区 | Worm gear and worm transmission mechanism |
-
2010
- 2010-04-07 CN CN2010201509798U patent/CN201621231U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102141116A (en) * | 2011-02-01 | 2011-08-03 | 河海大学常州校区 | Worm gear and worm transmission mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101103 Termination date: 20110407 |