CN202108936U - Adjustable worm-gear case - Google Patents
Adjustable worm-gear case Download PDFInfo
- Publication number
- CN202108936U CN202108936U CN2011201548918U CN201120154891U CN202108936U CN 202108936 U CN202108936 U CN 202108936U CN 2011201548918 U CN2011201548918 U CN 2011201548918U CN 201120154891 U CN201120154891 U CN 201120154891U CN 202108936 U CN202108936 U CN 202108936U
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- CN
- China
- Prior art keywords
- worm
- gear
- gear case
- planetary pinion
- worm screw
- 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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Abstract
The utility model discloses an adjustable worm-gear case, which comprises a case body, a worm wheel and a worm, wherein the worm wheel and the worm are arranged in the case body. The adjustable worm-gear case is characterized in that: one end of the worm is a threaded end with screw threads; the threaded end is provided with an outer spline travel nut; the other end of the threaded end opposite to the outer spline travel nut is provided with a retainer; the outer spline travel nut is provided with an inner spline limiting cover which is in spline fit with the outer spline travel nut; a rolling bearing is arranged between the worm and the case body; and one end of the worm is provided with a driving mechanism. The adjustable worm-gear case provided by the utility model has a large revolving angle, a small size and low torque during mechanical limiting.
Description
Technical field
The utility model relates to a kind of Worm gear case, is specifically related to a kind of adjustable Worm gear case.
Background technique
Worm gear case is a kind of the most frequently used, the most general drive unit.Present stage, Worm gear case both domestic and external angle of revolution was 90 °, and the secondary gear case is gear transmission, and mechanical position limitation is only through bolt connect box and land; Come carry-over moment thus, shortcoming is that the angle of revolution is single, and the secondary gear casing is long-pending big; The moment of torsion of mechanical position limitation is high, damages easily.Along with the valve applying unit to the improving constantly of product usage requirement, this product has been difficult to satisfy vast applying unit.
Summary of the invention
To the deficiency that existing technology exists, the purpose of the utility model is to provide the new type worm wheel case of a kind of angle of revolution adjustable range.
For realizing above-mentioned purpose, the technological scheme of the utility model is following: a kind of adjustable Worm gear case, comprise casing, and place worm gear and worm screw in the casing, it is characterized in that:
The end of said worm screw is the threaded end that is provided with screw thread; Threaded end is provided with the external splines stroke nut; The other end that threaded end is provided with the external splines stroke nut relatively is provided with stop member; Also be provided with the internal spline limited cover that forms spline fitted with it on the external splines stroke nut, also be provided with rolling bearing between worm screw and the casing, the end of worm screw is provided with driving mechanism.
Adopt technique scheme, can adjust the angle of revolution of Worm gear case through changing the length of threaded end, adjustable range is big, simultaneously, such mechanical position limitation mode, torque is low, and is not fragile.
The utility model further is set to: the threaded end on the said worm screw is arranged on the other end of relative driving mechanism.
Adopt technique scheme, transmission is more steady, and convenient simultaneously the installation can be satisfied different requirement of client.
The utility model further is set to: said worm screw one end is provided with planetary pinion; Planetary pinion one side is provided with planet carrier; Planet carrier is connected with worm screw, and planetary pinion is connected through positioning bolt with planet carrier, and the opposite side of the relative planet carrier of planetary pinion is provided with gear shaft; Gear shaft links to each other with planetary pinion, and described driving mechanism is arranged on the planetary relatively opposite side of gear shaft.
Adopt technique scheme, the drive device drives planetary pinion rotates, and planetary pinion drives worm screw and rotates, and has replaced the secondary gear transmission with the planetary pinion transmission, has reduced the volume of Worm gear case, and transmission is more steady.
The utility model further is set to: described planetary pinion also is connected with gear-box, and gear-box is connected through bolt with casing.
Adopt technique scheme, can further reduce moment of torsion.
The utility model further is set to: the opposite side of the relative connection gear case of said planetary pinion is connected with gear box cover, and gear box cover is connected through bolt with gear-box.
Adopt technique scheme, further seal planetary pinion.
The utility model further is set to: be equipped with O shape circle between described casing and internal spline limited cover, casing and gear-box, gear-box and the gear box cover.
Adopt technique scheme, sealing protection is effective.
The utility model further is set to: the other end of relative threaded end is provided with oil sealing on the said worm screw.
Adopt technique scheme, box sealing property is stronger, when lubricating grease is filled, and oil sealing oil sealing, longer service life.
Description of drawings
Fig. 1 is the utility model Worm gear case embodiment's structural representation (containing partial cutaway).
Embodiment
With reference to Fig. 1 the specific embodiment of the utility model is further specified.
A kind of adjustable Worm gear case comprises casing 1, places worm gear 2 and worm screw 3 in the casing 1; Worm screw 3 one ends are the threaded end 31 that is provided with screw thread; Threaded end 31 is provided with external splines stroke nut 41, and the other end that threaded end 31 is provided with external splines stroke nut 41 relatively is provided with stop member 42, also is provided with the internal spline limited cover 7 that forms spline fitted with it on the external splines stroke nut 41; Also be provided with rolling bearing 51 between worm screw 3 and the casing 1, the end of said worm screw 3 also is provided with driving mechanism.
Drive mechanism worm screw 3 is rotated; Worm screw 3 is corresponding rotation under the support of rolling bearing 51, rotates thereby drive worm gear 2, because external splines stroke nut 41 is spline fitted with internal spline limited cover 7; External splines stroke nut 41 is screw-thread fit with worm screw 3; Make that external splines stroke nut 41 can only be along worm screw 3 moving linearlies, when external splines stroke nut 41 turns to stop member 42 positions, because stop member 42 is spacing; Worm screw 3 can't continue along equidirectional rotation, and worm gear 2 also just stops operating; When the counter-rotation driving mechanism, external splines stroke nut 41 knows the pivot that withstands worm screw 3 and stops to motion in the other direction equally, so; Through changing the length of threaded end 31, adjust the angle of revolution of Worm gear case, adjustable range is big; Simultaneously; Such mechanical position limitation mode, torque is low, and is not fragile.
Threaded end 31 on the said worm screw 3 is arranged on the other end of relative driving mechanism, and (what need explain is here; An end that is provided with driving mechanism can be same end with an end that is provided with threaded end 31; For making transmission more steady, structure is more reasonable, and an end that is provided with driving mechanism is different two ends with an end that is provided with threaded end 31); Being provided with conveniently like this installed, and can satisfy different requirement of client.
The end of worm screw 3 is provided with planetary pinion 32; Planetary pinion 32 1 sides are provided with planet carrier 33; Planet carrier 33 is connected with worm screw 3, and planetary pinion 32 is connected through positioning bolt 43 with planet carrier 33, and the opposite side of planetary pinion 32 relative planet carriers 33 is provided with gear shaft 9; Gear shaft 9 links to each other with planetary pinion 32, and driving mechanism is arranged on the opposite side of gear shaft 9 relative planetary pinions 32.Driving mechanism driven gear axle 9 rotates, and rotates thereby drive worm screw 3 through planetary pinion 32, thereby accomplishes the work of worm gear 2 worm screws 3, replaces traditional secondary gear kind of drive with planetary pinion 32 transmissions, has reduced the volume of Worm gear case, and transmission is more steady.
Described planetary pinion 32 also is connected with gear-box 34, and gear-box 34 is connected through bolt 45 with casing 1, and traditional Worm gear case only connects to come transmitting torque through bolt between casing 1 and the driving body 45, and moment of torsion is bigger like this, damages easily; Not only come transmitting torque through stroke nut 41 in the present embodiment, also come connection gear case 34 and worm gear 2 through bolt 45, bolt 45 is effective transmitting torque also, the damage of effectively avoiding moment to bring.
The opposite side of described planetary pinion 32 relative connection gear casees 34 is connected with gear box cover 35, and gear box cover 35 is connected through bolt 43 with gear-box 34.Adopt technique scheme, planetary pinion is also sealed up, prevent that dust from falling into, and influences working life.
Be equipped with O shape circle between described casing and internal spline limited cover, casing and gear-box, gear-box and the gear box cover.Being provided with of O shape circle guaranteed good sealing protection effect.
The other end of relative threaded end 31 is provided with oil sealing 47 on the worm screw 3, such setting, and box sealing property is stronger, when lubricating grease is filled, oil sealing 47 oil sealings, longer service life.
Claims (7)
1. an adjustable Worm gear case comprises casing, places worm gear and worm screw in the casing; It is characterized in that: the end of said worm screw is the threaded end that is provided with screw thread; Threaded end is provided with the external splines stroke nut, and the other end that threaded end is provided with the external splines stroke nut relatively is provided with stop member, also is provided with the internal spline limited cover that forms spline fitted with it on the external splines stroke nut; Also be provided with rolling bearing between worm screw and the casing, the end of worm screw is provided with driving mechanism.
2. Worm gear case according to claim 1 is characterized in that: the threaded end on the said worm screw is arranged on the other end of relative driving mechanism.
3. Worm gear case according to claim 1 and 2; It is characterized in that: said worm screw one end is provided with planetary pinion, and planetary pinion one side is provided with planet carrier, and planet carrier is connected with worm screw; Planetary pinion is connected through positioning bolt with planet carrier; The opposite side of the relative planet carrier of planetary pinion is provided with gear shaft, and gear shaft links to each other with planetary pinion, and described driving mechanism is arranged on the planetary relatively opposite side of gear shaft.
4. Worm gear case according to claim 3 is characterized in that: described planetary pinion also is connected with gear-box, and gear-box is connected through bolt with casing.
5. Worm gear case according to claim 4 is characterized in that: the opposite side of the relative connection gear case of said planetary pinion is connected with gear box cover, and gear box cover is connected through bolt with gear-box.
6. Worm gear case according to claim 5 is characterized in that: be equipped with O shape circle between described casing and internal spline limited cover, casing and gear-box, gear-box and the gear box cover.
7. Worm gear case according to claim 1 and 2 is characterized in that: the other end of relative threaded end is provided with oil sealing on the said worm screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201548918U CN202108936U (en) | 2011-05-16 | 2011-05-16 | Adjustable worm-gear case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201548918U CN202108936U (en) | 2011-05-16 | 2011-05-16 | Adjustable worm-gear case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202108936U true CN202108936U (en) | 2012-01-11 |
Family
ID=45434370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201548918U Expired - Fee Related CN202108936U (en) | 2011-05-16 | 2011-05-16 | Adjustable worm-gear case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202108936U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090170A (en) * | 2016-08-19 | 2016-11-09 | 重庆齿轮箱有限责任公司 | A kind of compact worm screw slewing equipment |
| CN114263707A (en) * | 2021-10-12 | 2022-04-01 | 西华大学 | Highly integrated robot joint reducer and joint device |
-
2011
- 2011-05-16 CN CN2011201548918U patent/CN202108936U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090170A (en) * | 2016-08-19 | 2016-11-09 | 重庆齿轮箱有限责任公司 | A kind of compact worm screw slewing equipment |
| CN114263707A (en) * | 2021-10-12 | 2022-04-01 | 西华大学 | Highly integrated robot joint reducer and joint device |
| CN114263707B (en) * | 2021-10-12 | 2023-04-28 | 西华大学 | Highly integrated robot joint reducer and joint device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120111 Termination date: 20180516 |