CN203625957U - Speed reduction improvement device - Google Patents
Speed reduction improvement device Download PDFInfo
- Publication number
- CN203625957U CN203625957U CN201320824695.6U CN201320824695U CN203625957U CN 203625957 U CN203625957 U CN 203625957U CN 201320824695 U CN201320824695 U CN 201320824695U CN 203625957 U CN203625957 U CN 203625957U
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- CN
- China
- Prior art keywords
- gear
- herringbone
- shaft
- gear shaft
- electric excavator
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- 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 - Lifetime
Links
- 230000008878 coupling Effects 0.000 claims abstract description 7
- 238000010168 coupling process Methods 0.000 claims abstract description 7
- 238000005859 coupling reaction Methods 0.000 claims abstract description 7
- 244000309464 bull Species 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000003754 machining Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000009977 dual effect Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model provides a speed reduction improvement device for an electric excavator. The speed reduction improvement device solves the problem that a work platform of the electric excavator can not be arranged due to space limitation of the installation position, and is easy to process. The speed reduction improvement device is simple in structure, can achieve uniform loads and is suitable for low-speed and large-torque occasions with the space limited, and the transmission size is reduced. The speed reduction improvement device for the electric excavator comprises a motor, a gear coupling, an outward-extension gear shaft, a straight gear, a herringbone gear, a spline shaft, a left-handed rotation bevel gear, a right-handed rotation bevel gear, an upper herringbone gear shaft, a lower herringbone gear shaft and a large improvement gear ring. The herringbone gear can slide along the spline shaft in the axial direction, and generated axial forces are constantly opposite when the herringbone gear is meshed with the left-handed rotation bevel gear and the right-handed rotation bevel gear respectively, and therefore the load of the upper herringbone gear shaft and the load of the lower herringbone gear shaft are balanced. According to the speed reduction improvement device, the loads of double output devices are balanced, the service life of parts is prolonged, the maintenance cost is lowered, and the parts can be machined by common machine tools, so that the machining cost is lowered.
Description
Technical field
The utility model relates to a kind of electric excavator and promotes deceleration device
Background technology
Single motor dual output mode that electric excavator adopts, the moment of employing differential planetary gear device autobalance dual output gear, structure and processing are comparatively complicated, and cost is higher.Or adopt bi-motor dual output mode, realize all and carrying by controlling bi-motor, but due to the difference of the layout type of each electric excavator, make its use limited.
Utility model content
In order to overcome above-mentioned the deficiencies in the prior art, the utility model provides a kind of lifting deceleration device of electric excavator.This scheme solved because of electric excavator working platform installation site limited space cannot placing structure and the problem of the fairly simple lifting deceleration device of processing.The utility model is simple in structure, has dwindled transmission size, realizing the occasion that makes it to be applicable to low-speed big and limited space in all carrying, 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 be done axial slip along described splined shaft, and the axial force producing during with its engagement is contrary all the time.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 producing when the axial force producing when described dextrorotation helical gear engages with described herringbone bear engages with described herringbone bear with described left-hand helical gear there are differences, this just makes described herringbone bear constantly adjust its position, thereby makes the stand under load equilibrium of described upper and lower herringbone gear shaft.
Preferably, the utility model 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 beneficial effects of the utility model are: make the equilibrium of dual-output device stand under load, improve part application life, reduced maintenance cost; The general lathe of each part just can be processed, and has reduced processing cost.
Accompanying drawing explanation
Fig. 1 the utility model promotes deceleration device.
Fig. 2 the utility model motor connects by shaft coupling with overhanging gear shaft.
The axially loaded figure of Fig. 3 herringbone bear of the present utility model, the axial force F 1 producing when left-hand helical gear engages with herringbone bear, the axial force F 2 producing when dextrorotation helical gear engages with herringbone bear.
Fig. 4 herringbone bear of the present utility model and splined shaft are by splined schematic diagram.
The specific embodiment
As shown in Figure 1, Figure 2, Figure 4 shows, electric excavator working platform installation site limited space, the transmission size that makes to promote deceleration device must be as much as possible little in the situation that meeting the demands.Adopt single motor dual output mode, slide axially to realize all by herringbone bear 4 simultaneously and carry, reduced the modulus of gear, make whole mechanism structure compactness, simple and reliable.Motor 14 connects 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 be done axial slip, and the axial force producing during with its engagement is contrary all the time.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 by two inner ring taper roll bearings 11 at its two ends respectively.
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 stands under load unbalanced, the axial force F 2 that reflects when described dextrorotation helical gear 2 engages with described herringbone bear 4 generation when the axial force F 1 that produces and described left-hand helical gear 10 engage with described herringbone bear 4 is unequal, therefore, in order to make F1=F2, described herringbone bear 4 just needs constantly to adjust its position, be that it constantly slides axially left and right along described splined shaft 6, thereby make the stand under load equilibrium of described upper herringbone gear shaft 3 and described lower herringbone gear shaft 12.
The utility model 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) is one-level Spur Gear Driving with described spur gear (5), 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) adopts splined with splined shaft (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320824695.6U CN203625957U (en) | 2013-12-14 | 2013-12-14 | Speed reduction improvement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320824695.6U CN203625957U (en) | 2013-12-14 | 2013-12-14 | Speed reduction improvement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203625957U true CN203625957U (en) | 2014-06-04 |
Family
ID=50812449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320824695.6U Expired - Lifetime CN203625957U (en) | 2013-12-14 | 2013-12-14 | Speed reduction improvement device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203625957U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104070697A (en) * | 2014-06-18 | 2014-10-01 | 韦啟武 | Motor speed changing box structure for oil press |
| CN104712006A (en) * | 2013-12-14 | 2015-06-17 | 中钢集团衡阳重机有限公司 | Lifting speed reducer |
-
2013
- 2013-12-14 CN CN201320824695.6U patent/CN203625957U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712006A (en) * | 2013-12-14 | 2015-06-17 | 中钢集团衡阳重机有限公司 | Lifting speed reducer |
| CN104070697A (en) * | 2014-06-18 | 2014-10-01 | 韦啟武 | Motor speed changing box structure for oil press |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180702 Address after: No. 1, Dongfeng Road, Zhu Hui District, Hengyang, Hunan Patentee after: SINOSTEEL HENGYANG MACHINERY Co.,Ltd. Address before: No. 1, Dongfeng Road, Zhu Hui District, Hengyang, Hunan Patentee before: SINOSTEEL HENGYANG MACHINERY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140604 |
|
| CX01 | Expiry of patent term |