CN104712006A - Lifting speed reducer - Google Patents
Lifting speed reducer Download PDFInfo
- Publication number
- CN104712006A CN104712006A CN201310684876.8A CN201310684876A CN104712006A CN 104712006 A CN104712006 A CN 104712006A CN 201310684876 A CN201310684876 A CN 201310684876A CN 104712006 A CN104712006 A CN 104712006A
- Authority
- CN
- China
- Prior art keywords
- gear
- herringbone
- shaft
- gear shaft
- electric excavator
- 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.)
- Pending
Links
Abstract
The invention provides a lifting speed reducer of an electric excavator. The problem that a lifting speed reducer simple in structure and easy to machine can not be placed due to the limitation of space of the installation position of a work platform of the electric excavator is solved. The lifting speed reducer is simple in structure, the transmission size is reduced, and the lifting speed reducer can be suitable for occasions of the low speed, large torque and limited space while achieving the uniform loading purpose. The lifting speed reducer of the electric excavator comprises a motor, a gear coupling, an external extending gear shaft, a straight gear, a herringbone gear, a spline shaft, a left-hand bevel gear, a right-hand bevel gear, an upper herringbone gear shaft, a lower herringbone gear shaft and a large lifting gear ring. The herringbone gear can axially slide along the spline shaft in the direction opposite to that of axial force generated when the herringbone gear is meshed with the spline shaft all the time. The upper herringbone gear shaft and the lower herringbone gear shaft are loaded in a balanced mode. By the adoption of the lifting speed reducer, a double-output device is loaded in a balanced mode, the service life of parts is prolonged, repair cost is reduced, the parts can be machined by a common machine tool, and machining cost is reduced.
Description
Technical field
The present invention relates to a kind of electric excavator and promote deceleration device
Background technology
Single motor dual output mode that electric excavator adopts, adopts the moment of differential planetary gear device autobalance dual output gear, and structure and processing are comparatively complicated, and cost is higher.Or adopt bi-motor dual output mode, realize all carrying by controlling bi-motor, but the difference of layout type due to each electric excavator, make it use limited.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the invention provides a kind of lifting deceleration device of electric excavator.Solving cannot placing structure and the problem of processing fairly simple lifting deceleration device because of electric excavator working platform installation site limited space.Structure of the present invention is simple, reduces transmission size, makes it to be applicable to low-speed big and the occasion of limited space while can realizing all carrying, and is also easy to processing simultaneously.
Electric excavator promotes deceleration device and comprises motor, gear coupling, overhanging gear shaft, spur gear, herringbone bear, splined shaft, left-hand helical gear, dextrorotation helical gear, upper herringbone gear shaft, lower herringbone gear shaft, promotes bull gear.
Described motor is connected with described overhanging gear shaft by described gear coupling, and described overhanging gear shaft and described spur gear are one-level Spur Gear Driving.Described spur gear and described herringbone bear connect with described splined shaft respectively, the described left-hand helical gear that described herringbone bear is identical with the number of teeth and described dextrorotation helical gear engage simultaneously, described herringbone bear can do axial slip along described splined shaft, contrary all the time with the axial force produced during its engagement.Described left-hand helical gear is connected with described upper herringbone gear shaft, and described dextrorotation helical gear is connected with described lower herringbone gear shaft, and the number of teeth of described upper and lower herringbone gear shaft is identical, and engages with described lifting bull gear simultaneously.The two ends of described overhanging gear shaft, described splined shaft, described upper herringbone gear shaft, described lower herringbone gear shaft are arranged on bearing support by bearing.
The foozle of each gear causes described upper and lower herringbone gear shaft stand under load unbalanced, reflect that the axial force that the axial force that described dextrorotation helical gear produces when engaging with described herringbone bear produces when engaging with described herringbone bear with described left-hand helical gear there are differences, this just makes described herringbone bear constantly adjust its position, thus makes the stand under load of described upper and lower herringbone gear shaft balanced.
Preferably, the present invention adopts common standard gear drive, described spur gear adopts standard spur gear, described herringbone bear adopts standard herringbone bear, described left-hand helical gear and described dextrorotation helical gear all adopt helical gear, and the gear on described upper herringbone gear shaft adopts standard herringbone bear, and the gear on described lower herringbone gear shaft adopts standard herringbone bear, described lifting bull gear adopts standard herringbone bear, and described overhanging gear shaft adopts standard spur gear.Adopt common standard component, common factory just can process, low processing cost.
Compared with prior art, the invention has the beneficial effects as follows: make dual-output device stand under load balanced, improve part application life, reduce maintenance cost; The general lathe of each part just can be processed, and reduces processing cost.
Accompanying drawing explanation
Fig. 1 the present invention promotes deceleration device.
Fig. 2 motor of the present invention is connected by shaft coupling with overhanging gear shaft.
The axially loaded figure of Fig. 3 herringbone bear of the present invention, the axial force F 1 produced when left-hand helical gear engages with herringbone bear, the axial force F 2 produced when dextrorotation helical gear engages with herringbone bear.
Fig. 4 herringbone bear of the present invention and splined shaft are by splined schematic diagram.
Detailed description of the invention
As shown in Figure 1, Figure 2, Figure 4 shows, electric excavator working platform installation site limited space, making to promote the transmission size of deceleration device must be little as much as possible when meeting the demands.Adopt single motor dual output mode, slid axially by herringbone bear 4 realizes all carrying simultaneously, reduces the modulus of gear, makes whole mechanism structure compact, simple and reliable.Motor 14 is connected with overhanging gear shaft 7 by gear coupling 13, described overhanging gear shaft 7 is one-level Spur Gear Driving with spur gear 5, described spur gear 5 and described herringbone bear 4 connect with splined shaft 6 respectively, the dextrorotation helical gear 2 that described herringbone bear 4 is identical with the number of teeth and left-hand helical gear 10 engage simultaneously, described herringbone bear 4 can do axial slip, contrary all the time with the axial force produced during its engagement.Described dextrorotation helical gear 2 is connected with upper herringbone gear shaft 3 and lower herringbone gear shaft 12 respectively with described left-hand helical gear 10, and described upper herringbone gear shaft 3 is identical with the number of teeth of described lower herringbone gear shaft 12, and engages with lifting bull gear 1 simultaneously.
Described overhanging gear shaft 7 is arranged on bearing support by the bearing 8 at its two ends.Described splined shaft 6 is arranged on bearing support by the Biserial cylindrical roller bearing 9 at its two ends, and described upper herringbone gear shaft 3 and described lower herringbone gear shaft 12 are arranged on bearing support respectively by two inner ring taper roll bearings 11 at its two ends.
As can be seen from Figure 3, the foozle of each gear cause described upper herringbone gear shaft 3 and described lower herringbone gear shaft 12 stand under load unbalanced, reflect that the axial force F 2 that the axial force F 1 that described dextrorotation helical gear 2 produces when engaging with described herringbone bear 4 and described left-hand helical gear 10 produce when engaging with described herringbone bear 4 is unequal, therefore, in order to make F1=F2, described herringbone bear 4 just needs constantly its position of adjustment, namely it constantly slides axially left and right along described splined shaft 6, thus makes the stand under load of described upper herringbone gear shaft 3 and described lower herringbone gear shaft 12 balanced.
The present invention adopts common standard gear drive, described spur gear 5 adopts standard spur gear, described herringbone bear 4 adopts standard herringbone bear, described left-hand helical gear 10 all adopts helical gear with described dextrorotation helical gear 2, gear on described upper herringbone gear shaft 3 adopts standard herringbone bear, gear on described lower herringbone gear shaft 12 adopts standard herringbone bear, and described lifting bull gear 1 adopts standard herringbone bear, and described overhanging gear shaft 7 adopts standard spur gear.Adopt common standard component, common factory just can process, low processing cost.
Claims (9)
1. an electric excavator promotes deceleration device, comprise motor (14), gear coupling (13), overhanging gear shaft (7), spur gear (5), herringbone bear (4), splined shaft (6), dextrorotation helical gear (2), left-hand helical gear (10), upper herringbone gear shaft (3), lower herringbone gear shaft (12), promote bull gear (1), described motor (14) is connected with described overhanging gear shaft (7) by described gear coupling (13), described overhanging gear shaft (7) and described spur gear (5) are one-level Spur Gear Driving, described spur gear (5) and described herringbone bear (4) connect with described splined shaft (6) respectively, described herringbone bear (4) engages with described dextrorotation helical gear (2) and described left-hand helical gear (10) simultaneously, described dextrorotation helical gear (2) connects with described upper herringbone gear shaft (3), described left-hand helical gear (10) connects with described lower herringbone gear shaft (12), described upper herringbone gear shaft (3) is identical with the number of teeth of described lower herringbone gear shaft (12), and engage with described lifting bull gear (1) simultaneously, it is characterized in that: described herringbone bear (4) can slide axially along described splined shaft (6) on described splined shaft (6).
2. electric excavator according to claim 1 promotes deceleration device, it is characterized in that: described spur gear (5) adopts standard spur gear.
3. electric excavator according to claim 1 promotes deceleration device, it is characterized in that: described herringbone bear (4) adopts standard herringbone bear.
4. electric excavator according to claim 1 promotes deceleration device, it is characterized in that: described dextrorotation helical gear (2) and left-hand helical gear (10) adopt helical gear.
5. electric excavator according to claim 1 promotes deceleration device, it is characterized in that: the gear on described upper herringbone gear shaft (3) adopts standard herringbone bear.
6. electric excavator according to claim 1 promotes deceleration device, it is characterized in that: the gear on described lower herringbone gear shaft (12) adopts standard herringbone bear.
7. electric excavator according to claim 1 promotes deceleration device, it is characterized in that: described lifting bull gear (1) adopts standard herringbone bear.
8. electric excavator according to claim 1 promotes deceleration device, it is characterized in that: described overhanging gear shaft (7) adopts standard spur gear.
9. electric excavator according to claim 1 promotes deceleration device, it is characterized in that: described herringbone bear (4) and splined shaft (6) adopt splined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310684876.8A CN104712006A (en) | 2013-12-14 | 2013-12-14 | Lifting speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310684876.8A CN104712006A (en) | 2013-12-14 | 2013-12-14 | Lifting speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104712006A true CN104712006A (en) | 2015-06-17 |
Family
ID=53411698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310684876.8A Pending CN104712006A (en) | 2013-12-14 | 2013-12-14 | Lifting speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104712006A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2200714B (en) * | 1985-02-07 | 1991-10-02 | Horstman Defence Syst | Mechanical transmissions |
| CN2743620Y (en) * | 2004-11-24 | 2005-11-30 | 天津减速机股份有限公司 | Three stage driving cylindrical helical gear speed reducer |
| CN2793434Y (en) * | 2005-05-20 | 2006-07-05 | 天津减速机股份有限公司 | Triple-stage driving cylindrical reducer with parallel axis and spiral gear |
| CN1828088A (en) * | 2006-04-17 | 2006-09-06 | 冯文利 | Planet differential actuator |
| US20070006675A1 (en) * | 2003-05-22 | 2007-01-11 | Durgaprasad Marla | Power transfer unit |
| CN201902513U (en) * | 2010-11-19 | 2011-07-20 | 太原重工股份有限公司 | Walking planetary speed reducer for mining excavator |
| CN202779572U (en) * | 2012-08-27 | 2013-03-13 | 嵊州市创宇机械科技有限公司 | Thread delivering rotation device for spring machine |
| CN202901171U (en) * | 2012-10-10 | 2013-04-24 | 中信重工机械股份有限公司 | Speed reducer with herringbone teeth and hard tooth surface |
| CN203625957U (en) * | 2013-12-14 | 2014-06-04 | 中钢集团衡阳重机有限公司 | Speed reduction improvement device |
-
2013
- 2013-12-14 CN CN201310684876.8A patent/CN104712006A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2200714B (en) * | 1985-02-07 | 1991-10-02 | Horstman Defence Syst | Mechanical transmissions |
| US20070006675A1 (en) * | 2003-05-22 | 2007-01-11 | Durgaprasad Marla | Power transfer unit |
| CN2743620Y (en) * | 2004-11-24 | 2005-11-30 | 天津减速机股份有限公司 | Three stage driving cylindrical helical gear speed reducer |
| CN2793434Y (en) * | 2005-05-20 | 2006-07-05 | 天津减速机股份有限公司 | Triple-stage driving cylindrical reducer with parallel axis and spiral gear |
| CN1828088A (en) * | 2006-04-17 | 2006-09-06 | 冯文利 | Planet differential actuator |
| CN201902513U (en) * | 2010-11-19 | 2011-07-20 | 太原重工股份有限公司 | Walking planetary speed reducer for mining excavator |
| CN202779572U (en) * | 2012-08-27 | 2013-03-13 | 嵊州市创宇机械科技有限公司 | Thread delivering rotation device for spring machine |
| CN202901171U (en) * | 2012-10-10 | 2013-04-24 | 中信重工机械股份有限公司 | Speed reducer with herringbone teeth and hard tooth surface |
| CN203625957U (en) * | 2013-12-14 | 2014-06-04 | 中钢集团衡阳重机有限公司 | Speed reduction improvement device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204755786U (en) | Drive ratio adjustable speed reducer | |
| CN104653726A (en) | Secondary planetary transmission | |
| CN204353518U (en) | A kind of drilling equipment of multi spindle drilling machine | |
| CN204664310U (en) | Multipurpose power transmission system | |
| CN203625957U (en) | Speed reduction improvement device | |
| CN106064387A (en) | Dual Drive formula industrial robot joint structure | |
| CN105020346A (en) | Hollow shaft type precision 2K-V speed reduction device | |
| CN203939930U (en) | Hollow shaft 2K-V type accurate retarding machine | |
| CN104712005A (en) | Speed reduction device of electric excavator | |
| CN105269034A (en) | Main shaft speed change system and main shaft feeding speed change system of digital display type radial drilling machine | |
| CN104776164A (en) | Power driving device for construction machinery | |
| CN204437188U (en) | A kind of elevator worm and gear speed-reduction apparatus | |
| CN203654364U (en) | Electric excavator speed reducer | |
| CN103807366A (en) | Electromobile three-gear speed changing double-engine-head driving system | |
| CN104712006A (en) | Lifting speed reducer | |
| CN202251747U (en) | Motor vehicle and transmission thereof | |
| CN205147396U (en) | Digital display type radial drill's main shaft variable speed system and main shaft feed variable speed system | |
| CN204477214U (en) | A kind of secondary planet speed changer | |
| CN204061744U (en) | Eccentric input planetary speed reducer | |
| CN205114940U (en) | Low latitude transport vechicle | |
| CN103991807A (en) | Multifunctional crane winch | |
| CN104806705A (en) | Gear reducer | |
| CN208503419U (en) | A kind of tool magazine deceleration mechanism | |
| CN204852186U (en) | Energy -saving receipts line gear motor | |
| CN202431835U (en) | Transmission device of arm-support rotating platform of concrete pump truck |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150617 |