CN2532304Y - Gear miniature speed booster with oblong shape casing - Google Patents
Gear miniature speed booster with oblong shape casing Download PDFInfo
- Publication number
- CN2532304Y CN2532304Y CN 02226641 CN02226641U CN2532304Y CN 2532304 Y CN2532304 Y CN 2532304Y CN 02226641 CN02226641 CN 02226641 CN 02226641 U CN02226641 U CN 02226641U CN 2532304 Y CN2532304 Y CN 2532304Y
- Authority
- CN
- China
- Prior art keywords
- gear
- shaft
- bevel gear
- casing
- arc bevel
- 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
Disclosed is a rectangular body gear micro speed increaser, which comprises a box body, an input shaft, a driving small arc bevel gear, a middle shaft, a driving big arc bevel gear, a big helical gear and a gear shaft. The box body is in a frame body structure with the directions of an outer rectangle and an inner hollow rectangle staggering in 90 degrees; the input shaft is supported by a cantilever of the left wall of the box body through a bearing; the driving small air bevel gear is arranged on the input shaft; the middle shaft and the gear shaft are supported by the front and the back walls of the box body through the bearing; the driving big arc bevel gear and the big helical gear are arranged on the middle shaft and the gear shaft; the centre axis of the middle shaft and the centre axis of the input shaft are in a 90-degree angle; the small are bevel gear and the driven big air bevel gear are meshed with each other to form a bevel gear pair; the big helical gear and a small helical gear on the gear shaft are meshed with each other to form a helical gear pair. The utility model has the advantages of small friction, large torque strength, high efficiency, stable running, low noise, low temperature rising, safety and reliability and easy installation.
Description
Technical field
The utility model relates to a kind of speed changer, especially a kind of gear speeder.
Background technique
90 ° of speed increasers that changed course is rotated commonly used are to adopt worm and worm gear to pay 90 ° of changed course transmissions, and its shortcoming is that friction is big, heating is many, torsional strenght is little, efficient is low.
Summary of the invention
Frictional force was little when the purpose of this utility model provided 90 ° of transmissions of a kind of changed course, torsional strenght is big, efficient is high, running is steady, noise is low, temperature rise is low, the miniature speed increaser of safe and reliable, easy-to-install gear.
The purpose of this utility model is to realize like this, the miniature speed increaser of a kind of rectangular body gear, comprise casing, input shaft, initiatively little arc bevel gear, jack shaft, driven big arc bevel gear, large helical gear, gear shaft, described casing is outward appearance rectangular and boring rectangular direction 90 ° the framework body structure that staggers; Described input shaft by casing left side wall cantilever support, is equipped with initiatively little arc bevel gear by bearing on it; Described jack shaft and gear shaft are supported by the casing front and back walls by bearing; Driven big arc bevel gear, large helical gear are installed on the described jack shaft; The medial axis of jack shaft becomes 90 ° of angles with the medial axis of input shaft; The arc bevel gear pair is formed in described little arc bevel gear and driven big arc bevel gear engagement; Helical gear pair is formed in bevel pinion engagement on described large helical gear and the gear shaft.
When rotating input shaft, initiatively little arc bevel gear drives driven big arc bevel gear rotation, drives large helical gear by jack shaft, and large helical gear and driven bevel gear wheel rotate with unequal angular velocity, and large helical gear driven gear axle rotates.
The utility model is according to dynamics inertia mechanism, and speed increasing mechanism slows down earlier when changing 90 ° of directions before speedup, makes it produce inertial force at jack shaft and reduces, and carry-over moment is carried out speedup after increasing again.The utility model had not only slowed down but also the reduction speed ratio and the speed increasing ratio of speedup are optimized matched combined, all used optimal design, made it away from the resonance crest, lowered amplitude, improving engagement driving, thereby improved the stability of running, reduced noise effectively, improved transmission efficiency.Casing of the present utility model adopts outward appearance rectangular and boring rectangular direction 90 ° the framework body structure that staggers, and body effective cross section modulus is increased, and improves the stress operating mode, stability when the raising body runs up.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Below in conjunction with drawings and Examples the utility model is described:
As shown in Figure 1, the miniature speed increaser of a kind of rectangular body gear, comprise casing 1, input shaft 2, the little arc bevel gear 3 of active, jack shaft 4, driven big arc bevel gear 5, large helical gear 6, gear shaft 7, described casing 1 is outward appearance rectangular and boring rectangular direction 90 ° the framework body structure that staggers, the bottom design dovetail groove chassis of described casing 1, be convenient to casing and be connected, the slip mobile operating with unit; Described input shaft 2 by casing 1 left wall cantilever support, is equipped with initiatively little arc bevel gear 3 by single-row radial ball bearing 9 on the described input shaft 2; The two ends of described jack shaft 4 are installed in respectively on casing 1 front and rear wall by single-row radial ball bearing 10, and driven big arc bevel gear 5, large helical gear 6 are installed on the described jack shaft 4; Described gear shaft 7 is installed on casing 1 front and rear wall by single-row radial ball bearing 11 and single-row centripetal ball thrust bearing 12, the medial axis of the medial axis of the medial axis of input shaft 2, jack shaft 4, gear shaft 7 is in the same plane, and the medial axis of input shaft 2 becomes 90 ° of angles with the medial axis of jack shaft 4, and the medial axis of gear shaft 7 is positioned at the right side of medial axis of jack shaft 4 and parallel with it; Little arc bevel gear 3 of described active and driven big arc bevel gear 5 engagements are formed arc bevel gear pair (Gleason tooth wheel set); Helical gear pair is formed in bevel pinion 8 engagements on described large helical gear 6 and the gear shaft; Arc bevel gear pair and helical gear pair adopt the large helix angle design, to increase the engagement contact ratio, with the little number of teeth of small gear 9 tooth to 13 teeth, increase modification coefficient, improve joggled strength, increase speed ratio, guaranteeing under the enough conditions of intensity, reducing modulus, making speed increaser light and handy, micro high efficiency is adapted to the speedup transmission of various accurate units.
Casing of the present utility model 1 adopts outward appearance rectangular and boring rectangular direction 90 ° the framework body structure that staggers, and casing 1 effective cross section modulus is increased, and improves the stress operating mode, stability when raising casing 1 runs up; Designs 13 sealings of uncapping greatly in described casing 1 both sides are so that assembling, safeguard; Described bottom half design dovetail groove chassis is convenient to body and is connected with unit, the sliding transfer operation.
The whole applicable holes of the utility model bearing axially locating, axle circlip location, the thermal stress that linear expansion was produced when high-speed and high-temperature moved when moving to reduce high-speed and high-temperature is simplified the bearing location, is easy to assembling, is adapted to miniature underloading mechanism characteristics.
Between input shaft and casing, between jack shaft and casing and the Seal Design between gear shaft and casing be teflon " O " the type circle and the carbon seal ring composite mechanism of high temperature resistant oil resistant, adapt to high speed, high temperature, oil resistant sealing, and correspondingly improve friction mandrel stiffness of neck in children degree (HRC58-60) and precision, frictional loss reduced when per minute 3600-4000 was changeed, and improved safety reliability.
Claims (4)
1. miniature speed increaser of rectangular body gear, comprise casing (1), input shaft (2), active little arc bevel gear (3), jack shaft (4), driven big arc bevel gear (5), large helical gear (6), gear shaft (7), it is characterized in that: described input shaft (2) by the left wall cantilever support of casing (1), is equipped with initiatively little arc bevel gear (3) by bearing (9) on it; The two ends of described jack shaft (4) are installed in respectively on casing (1) front and rear wall by bearing (10), and driven big arc bevel gear (5), large helical gear (6) are installed on it; Described gear shaft (7) is installed on casing (1) front and rear wall by single-row radial ball bearing (11) and single-row centripetal thrust-bearing (12), and the medial axis of jack shaft (4) becomes 90 ° of angles with the medial axis of input shaft (2); Little arc bevel gear of described active (3) and driven big arc bevel gear (5) engagement are formed the arc bevel gear pair; Helical gear pair is formed in bevel pinion (8) engagement on described large helical gear (6) and the gear shaft (7); Described casing (1) is outward appearance rectangular and boring rectangular direction 90 ° the framework body structure that staggers.
2. the miniature speed increaser of a kind of rectangular body gear according to claim 1 is characterized in that: described casing (1) both sides closure designs is uncap greatly (13).
3. the miniature speed increaser of a kind of rectangular body gear according to claim 1, it is characterized in that: described casing (1) bottom design is the dovetail groove chassis.
4. the miniature speed increaser of a kind of rectangular body gear according to claim 1, it is characterized in that: described arc bevel gear pair and helical gear are paid and are all adopted large helix angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02226641 CN2532304Y (en) | 2002-04-05 | 2002-04-05 | Gear miniature speed booster with oblong shape casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02226641 CN2532304Y (en) | 2002-04-05 | 2002-04-05 | Gear miniature speed booster with oblong shape casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2532304Y true CN2532304Y (en) | 2003-01-22 |
Family
ID=33703607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02226641 Expired - Fee Related CN2532304Y (en) | 2002-04-05 | 2002-04-05 | Gear miniature speed booster with oblong shape casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2532304Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101336146B (en) * | 2006-02-09 | 2010-08-25 | 利优比株式会社 | Electric cutting tool |
| CN104653748A (en) * | 2014-11-20 | 2015-05-27 | 新誉集团有限公司 | S-shaped spiral bevel gear box |
-
2002
- 2002-04-05 CN CN 02226641 patent/CN2532304Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101336146B (en) * | 2006-02-09 | 2010-08-25 | 利优比株式会社 | Electric cutting tool |
| CN104653748A (en) * | 2014-11-20 | 2015-05-27 | 新誉集团有限公司 | S-shaped spiral bevel gear box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |