CN202448669U - Driving bridge for electric forklift - Google Patents
Driving bridge for electric forklift Download PDFInfo
- Publication number
- CN202448669U CN202448669U CN2012200251237U CN201220025123U CN202448669U CN 202448669 U CN202448669 U CN 202448669U CN 2012200251237 U CN2012200251237 U CN 2012200251237U CN 201220025123 U CN201220025123 U CN 201220025123U CN 202448669 U CN202448669 U CN 202448669U
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- China
- Prior art keywords
- gear
- semiaxis
- wheel
- bridge
- axle
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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.)
- Withdrawn - After Issue
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Abstract
The utility model belongs to the field of a driving bridge assembly of a forklift, and particularly relates to a driving bridge for an electric forklift. The driving bridge for the electric forklift comprises a bridge shell assembly, a primary speed reducer arranged in the bridge shell assembly, a secondary speed reducer arranged in the bridge shell assembly, a wheel hub and a brake. The bridge shell assembly comprises a bridge shell and a bridge cover; an opening is arranged at one end of the bridge shell; one end of the bridge shell is connected with the bridge cover, and the other end of the bridge shell is provided with a position of a wheel hub mounting hole, which is used for mounting the wheel hub; primary speed reduction refers to cylindrical inclined gear pair transmission, and secondary speed reduction refers to cylindrical gear planetary system transmission; and the brake is mounted at an outer side of the bridge cover, and is used for braking a half shaft. According to the wheel-side driving bridge of the electric forklift provided by the utility model, a power transmission direction is axially parallel to the wheel hub, namely a wheel, so that the structural design is reasonable and compact, and the transmission efficiency is high.
Description
Technical field
The utility model belongs to fork truck drive axle assembly field, is specifically related to a kind of electri forklift drive axle.
Background technology
Present most of electri forklift driving system directly replaces combustion engine as propulsion source with electrical motor, has kept the driving system (transmission shaft, main reduction gear, semiaxis) of traditional combustion engine fork truck; The transmission of power direction is that axletree is to vertical with wheel hub; And traditional wheel limit planetary reduction gear all is that the wheel reduction gear shell is drive hub again through pinion carrier drive wheel side reducer shell, complex structure, and mechanical efficiency is low, and is less economical.
Summary of the invention
The utility model technical matters to be solved provides a kind of transmission of power direction and wheel hub axially parallel, and reasonable in design is compact, the electri forklift drive axle that driving efficiency is high.
For solving the problems of the technologies described above, the technical scheme that is adopted is:
The electri forklift drive axle comprises axle case assy, is arranged at the interior one-level retarder of axle case assy, is arranged at two-stage reduction gear, wheel hub, drg in the axle case assy;
Described axle case assy comprises axle housing and Qiao Gai, and said axle housing one end opening links to each other with the bridge lid, and the other end is provided with the hub installing hole position, is used to install wheel hub;
Described one-level retarder comprises main shaft, active oblique gear, driven helical wheel, and said main shaft links to each other with motor output shaft, said main shaft and wheel hub axially parallel; Said active oblique gear links to each other with main shaft, is driven by main shaft and rotates, and said main shaft passes through bearings in axle case assy; Said driven helical wheel is meshed with active oblique gear, is driven by active oblique gear and rotates, and driven helical wheel links to each other with semiaxis; The drive semiaxis rotates, and said semiaxis passes through bearings in axle case assy;
Described two-stage reduction gear comprises sun wheel, a plurality of satellite gear, gear ring, gear ring support, pinion carrier, and said sun wheel links to each other with semiaxis, under semiaxis drives, rotates; Said satellite gear one side and sun wheel engagement, opposite side is meshed with gear ring, and said gear ring is connected with the gear ring support mutually; The gear ring support is connected with axle housing mutually; Said pinion carrier one end links to each other with satellite gear, and the other end links to each other with wheel hub, and drive hub rotates under the drive of satellite gear;
Described drg is installed in the bridge lid outside, is used to brake semiaxis.
Press such scheme, described pinion carrier is in the form of annular discs, and a side is laid and the corresponding protruding axle of satellite gear, is used for linking to each other with satellite gear, and the center is provided with female splines, links to each other with the wheel hub spline; Said wheel hub one end is a hub spindle, and the other end is a butt flange, and said hub spindle front end is provided with male splines, is used for linking to each other with pinion carrier.
Press such scheme, said hub spindle front end end is processed with the installation bearing and uses the bearing position, is used to install bearing, supports semiaxis; Described butt flange is circumferentially evenly laid bolt mounting holes.
Press such scheme, described drg is a wet multi-disk brake, and the friction lining of said wet multi-disk brake is set on the semiaxis, and brake plate is connected with the bridge lid mutually.
Press such scheme, described gear ring support and axle housing bolted connection.
Press such scheme, described sun wheel is machined on the semiaxis, becomes one with semiaxis.
The beneficial effect of the utility model:
1) motor is horizontal; Transmission of power direction and wheel hub are the wheel axially parallel, and adopt two reduction gear (one-level is the cylindric spiral gear auxiliary driving, and double reduction is the transmission of cylindrical wheel planetary system); And in two-stage reduction gear by pinion carrier direct drive wheel hub; Reasonable in design is compact, and driving efficiency is high, better economy;
2) based on the electric machine controller of fuzzy control theory,, can realize mechanical speed difference device function according to the electronic differential control algorithm.
3) adopt wet multi-disk brake, it is big to have a lock torque, and braking ability is good, long service life, anti-ageing move back and contamination resistance reaches advantages such as freedom from repairs by force.
Description of drawings
Fig. 1 electri forklift drive axle cutaway view;
Fig. 2 electri forklift drive axle left view;
Fig. 3 is an electri forklift drive axle wheel hub front elevation;
Fig. 4 is an electri forklift drive axle wheel hub cutaway view;
Fig. 5 is an electri forklift drive axle pinion carrier front elevation;
Fig. 6 is an electri forklift drive axle pinion carrier cutaway view;
Fig. 7 electri forklift drives the power transmission scheme drawing of vehicle bridge;
Among the figure: 7 promotions of 1 main shaft, 2 active oblique gears, 3 driven helical wheel 4 semiaxis 5 friction linings 6 brake plates are coiled 8 brake pistons, 9 oil connectors, 10 brake covers, 11 bridges and are covered 12 axle housings, 13 sun wheels, 14 satellite gears, 15 pinion carriers, 16 gear rings, 17 gear ring supports, 18 wheel hub 18-1 male spliness; 18-2 bearing position; The 18-3 bolt mounting holes; 18-4 boss platform; The 18-5 polished surface; The 18-6 outside thread.
The specific embodiment
Below in conjunction with accompanying drawing the summary of the invention of the utility model is described further.
In conjunction with illustrated in figures 1 and 2, fork truck drives vehicle bridge, comprises axle case assy, installs one-level retarder in axle case assy, installs two-stage reduction gear, drg and wheel hub in axle case assy;
Described axle case assy comprises axle housing and Qiao Gai, and said axle housing 12 1 end openings cover 11 bolted connections with bridge, and the other end is provided with the hub installing hole position, is processed with the bearing position in the axle housing, is used to install tapered roller bearing, supporting wheel hub 18;
Said wheel hub one end is front fine and rear thick staged hub spindle, and the other end is a butt flange, and the big footpath front end of said staged hub spindle is provided with male splines 18-1; The path place of said staged hub spindle is provided with outside thread 18-6, links to each other with jam nut, is used for fixing pinion carrier; The end of said staged hub spindle is processed with installs bearing with bearing position 18-2, is used to install bearing, supports semiaxis; Said hub spindle rear end is processed with two polished surface 18-5, is used to install the tapered roller bearing of supporting wheel hub, and said hub spindle is supported in the axle housing through a pair of tapered roller bearing; Described butt flange is circumferentially evenly laid bolt mounting holes; Said butt flange is provided with boss platform 18-4, so that link to each other with wheel, sees Fig. 3 and Fig. 4;
Described one-level retarder comprises main shaft, active oblique gear, driven helical wheel, and said main shaft 1 links to each other with the motor output shaft spline, and with the wheel hub axially parallel; Said active oblique gear 2 is connected with the main shaft flat key, is driven by main shaft and rotates, and said main shaft covers an end near bridge and adopts deep groove ball bearing; The other end adopts needle bearing, is supported in respectively on bridge lid and the axle housing, and said driven helical wheel 3 is meshed with active oblique gear; Drive rotation by active oblique gear; Driven helical wheel is connected with semiaxis 4 flat keys, drives semiaxis and rotates, and said semiaxis passes through deep groove ball bearing near an end of bridge lid; The other end is supported in respectively on bridge lid and the hub spindle through the needle bearing that the hub spindle end is provided with;
Described two-stage reduction gear comprises sun wheel, 3 satellite gears, gear ring, gear ring support, pinion carrier, and said sun wheel 13 is machined in the semiaxis end, becomes one with semiaxis; Drive rotation by semiaxis, said satellite gear 14 1 sides and sun wheel engagement, opposite side is meshed with gear ring 16; Said gear ring and gear ring support 17 link to each other through spline, and the gear ring support is connected through bolt with axle housing mutually, like Fig. 4 and shown in Figure 5; Described pinion carrier 15 is in the form of annular discs, and a side is evenly laid 3 protruding axles, is used for linking to each other with satellite gear 14; The center is provided with female splines, links to each other through spline with hub spindle, and drive hub rotates under the drive of satellite gear;
Described drg is a wet multi-disk brake; Install in the bridge lid outside; Comprise friction lining, brake plate, brake piston 8, promotion dish 7, oil connector 9, brake cover 10, said friction lining 6 is set on the semiaxis, and described brake plate 5 is connected through the guide pillar pin with the bridge lid mutually.
This fork truck drives the driving process scheme drawing of vehicle bridge and sees Fig. 7.Motor output shaft drives main shaft through the spline connection and rotates, and main shaft connects the driving active oblique gear through flat key and rotates, active oblique gear and the engagement of driven helical wheel; Power is passed to driven helical wheel, drive driven helical wheel and rotate, driven helical wheel connects the drive semiaxis through flat key and rotates; Semiaxis drives sun wheel and rotates; Sun wheel, satellite gear, gear ring, pinion carrier are formed wheel limit planetary reduction systems, and pinion carrier connects drive hub through spline rotates, and wheel hub links to each other with wheel; Output power to wheel, drive car load and go.
Glancing impact, braking liquid gets into brake cylinder through joint, promotes the brake piston reach; Brake piston forces the promotion dish that friction lining and brake plate are compressed; Friction lining receives friction force and slows down until stopping, because friction lining and semiaxis are to be rigidly connected, semiaxis also slows down until stopping synchronously.
Claims (6)
1. electri forklift drive axle is characterized in that: it comprises axle case assy, be arranged at one-level retarder in the axle case assy, be arranged at two-stage reduction gear, wheel hub, drg in the axle case assy;
Described axle case assy comprises axle housing and Qiao Gai, and said axle housing one end opening links to each other with the bridge lid, and the other end is provided with the hub installing hole position, is used to install wheel hub;
Described one-level retarder comprises main shaft, active oblique gear, driven helical wheel, and said main shaft links to each other with motor output shaft, and with the wheel hub axially parallel; Said active oblique gear links to each other with main shaft, is driven by main shaft and rotates, and said main shaft passes through bearings in axle case assy; Said driven helical wheel is meshed with active oblique gear, is driven by active oblique gear and rotates, and driven helical wheel links to each other with semiaxis; The drive semiaxis rotates, and said semiaxis passes through bearings in axle case assy;
Described two-stage reduction gear comprises sun wheel, a plurality of satellite gear, gear ring, gear ring support, pinion carrier, and said sun wheel links to each other with semiaxis, under semiaxis drives, rotates; Said satellite gear one side and sun wheel engagement, opposite side is meshed with gear ring, and said gear ring is connected with the gear ring support mutually; The gear ring support is connected with axle housing mutually; Said pinion carrier one end links to each other with satellite gear, and the other end links to each other with wheel hub, and drive hub rotates under the drive of satellite gear;
Described drg is installed in the bridge lid outside, is used to brake semiaxis.
2. electri forklift drive axle according to claim 1 is characterized in that: described pinion carrier is in the form of annular discs, and a side is laid and the corresponding protruding axle of satellite gear, is used for linking to each other with satellite gear, and the center is provided with female splines, links to each other with the wheel hub spline; Said wheel hub one end is a hub spindle, and the other end is a butt flange, and said hub spindle front end is provided with male splines, is used for linking to each other with pinion carrier.
3. electri forklift drive axle according to claim 2 is characterized in that: said hub spindle front end end is processed with the installation bearing and uses the bearing position, is used to install bearing, supports semiaxis; Described butt flange is circumferentially evenly laid bolt mounting holes.
4. electri forklift drive axle according to claim 1 is characterized in that: described drg is a wet multi-disk brake, and the friction lining of said wet multi-disk brake is set on the semiaxis, and brake plate is connected with the bridge lid mutually.
5. electri forklift drive axle according to claim 1 is characterized in that: described gear ring support and axle housing bolted connection.
6. electri forklift drive axle according to claim 1 is characterized in that: described sun wheel is machined on the semiaxis, becomes one with semiaxis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200251237U CN202448669U (en) | 2012-01-19 | 2012-01-19 | Driving bridge for electric forklift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200251237U CN202448669U (en) | 2012-01-19 | 2012-01-19 | Driving bridge for electric forklift |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202448669U true CN202448669U (en) | 2012-09-26 |
Family
ID=46864558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200251237U Withdrawn - After Issue CN202448669U (en) | 2012-01-19 | 2012-01-19 | Driving bridge for electric forklift |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202448669U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102529579A (en) * | 2012-01-19 | 2012-07-04 | 武汉新能车桥技术发展有限公司 | Drive axle of electronic forklift |
| CN108341013A (en) * | 2018-02-27 | 2018-07-31 | 唐泽交通器材(泰州)有限公司 | A kind of brake gear |
-
2012
- 2012-01-19 CN CN2012200251237U patent/CN202448669U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102529579A (en) * | 2012-01-19 | 2012-07-04 | 武汉新能车桥技术发展有限公司 | Drive axle of electronic forklift |
| CN102529579B (en) * | 2012-01-19 | 2013-09-04 | 武汉新能车桥技术发展有限公司 | Drive axle of electronic forklift |
| CN108341013A (en) * | 2018-02-27 | 2018-07-31 | 唐泽交通器材(泰州)有限公司 | A kind of brake gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120926 Effective date of abandoning: 20130904 |
|
| RGAV | Abandon patent right to avoid regrant |