CN204199349U - A kind of Electric bulldozer power assembly structure - Google Patents
A kind of Electric bulldozer power assembly structure Download PDFInfo
- Publication number
- CN204199349U CN204199349U CN201420615713.4U CN201420615713U CN204199349U CN 204199349 U CN204199349 U CN 204199349U CN 201420615713 U CN201420615713 U CN 201420615713U CN 204199349 U CN204199349 U CN 204199349U
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- generator
- oil pump
- pump
- power
- power assembly
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Abstract
For solving conventional fluid torque complicated mechanism, inefficient problem, the utility model provides a kind of Electric bulldozer power assembly structure, and its technical scheme is: this power assembly comprises power connector and oil pump transfer device two parts.Described power connector is made up of engine flywheel, shaft coupling, generator terminal pad and generator, the driving gear engagement idle pulley that described oil pump transfer device is connected by engine flywheel, connects working barrel driving gear by idler gear and is connected to work oil pump; Meanwhile, connect steering pump after the driving gear engagement steering pump gear that engine flywheel connects, after connecting thereafter the engaging mechanism of oil scavenger pump gear and scavenge oil pump idle pulley, connect scavenge oil pump.The utility model utilizes most compact structure and bulk, reduces cost, improves transmission efficiency; And by shaft coupling, flexible power is passed to generator, avoid generator and cause fluctuation on engine power performance and impact because being rigidly connected.
Description
Technical field
The utility model relates to Electric bulldozer field, especially a kind of Electric bulldozer power assembly structure.
Background technology
Current domestic bulldozer many employings hydraulic power, motor connects fluid torque-converter through power output device, and power exports through turbine, drives running gear through gearbox, central transmission, final transmission.Power output device, from engine flywheel power taking, drives equipment hydraulic oil pump, variable speed oil pump and steering pump, for bulldozer working device hydraulic system, compensator pressure system and braking in a turn hydraulic system provide power source; Integrated torque-converters scavenge oil pump and oil filter on converter cover, torque-converters oil is imported rear axle box, and such syndeton is complicated, and transmission efficiency is low.
Simultaneously, if electric transmission bulldozer adopts electric transmission mode, contrast conventional drivetrain eliminates fluid torque-converter and gearbox, and the electric energy that power assembly sends, by control system Direct driver alternating current generator, motor is walked through final actuator drives bulldozer.Because compensator pressure system is cancelled, machining device hydraulic system and braking in a turn hydraulic system still need from power output device power takings.Simultaneously, eliminate fluid torque-converter, the scavenge oil pump and the oil-filtering apparatus that are integrated in torque-converters need be integrated in power output device, therefore, tradition power output device can not adapt to the instructions for use of Novel electric transmission bulldozer, urgently a kind of research and development of novel Electric bulldozer power assembly.
Summary of the invention
For solving conventional fluid torque complicated mechanism, inefficient problem, the utility model provides a kind of Electric bulldozer power assembly structure.
Described a kind of Electric bulldozer power assembly structure, its technical scheme is: this power assembly comprises power connector and oil pump transfer device two parts.
Described power connector is made up of engine flywheel, shaft coupling, generator terminal pad and generator, is connected, wherein, generator terminal pad is provided with oil sealing after generator connects shaft coupling by generator terminal pad with the casing of power output device; Wherein, shaft coupling is arranged on key by jackscrew and carries out axial location.
Meanwhile, generator is connected with bulldozer frame by supplemental support.
The driving gear engagement idle pulley that described oil pump transfer device is connected by engine flywheel, connects working barrel driving gear by idler gear and is connected to work oil pump; Meanwhile, connect steering pump after the driving gear engagement steering pump gear that engine flywheel connects, after connecting thereafter the engaging mechanism of oil scavenger pump gear and scavenge oil pump idle pulley, connect scavenge oil pump.
The beneficial effects of the utility model are: utilize most compact structure and bulk, the power source of each hydraulic system of dynamic bulldozer of offeing telex, reduces cost, improves transmission efficiency; And by shaft coupling, flexible power is passed to generator, avoid generator and cause fluctuation on engine power performance and impact because being rigidly connected, this coupler structure also can compensate because of the alignment deviation caused by machine-building error, makes rotary part stability of rotation reliable.
Simultaneously, generator is connected with bulldozer frame by supplemental support, reduce generator and the shearing force of power output device casing connecting portion suffered by bulldozer operating process, play the stressed effect alleviating generator terminal pad and casing connecting portion, strengthen connection reliability.
Oil sealing is equipped with generator terminal pad, to guarantee the sealing of generator shaft.
The difference of oil pump transfer device and conventional fluid torque transmission power output device is scavenge oil pump integrated on fluid torque-converter and oil-filtering apparatus to be transplanted to power output device, both cost was reduced, make compact conformation again, be convenient to complete machine and arrange, improve many-sided beneficial effects such as transmission efficiency.
Accompanying drawing explanation
Fig. 1 is Electric bulldozer power assembly structural representation; Fig. 2 is power connector schematic diagram.
Wherein, 1. driving gear; 2. idle pulley; 3. idler gear; 4. working barrel driving gear; 5. working barrel driven gear; 6. transfer case body; 7. work oil pump; 8. generator; 9. generator supplemental support; 10. oil sealing; 11. shaft couplings; 12. generator terminal pads; 13. scavenge oil pumps; 14. oil scavenger pump gears; 15. casings; 16. scavenge oil pump idle pulleys; 17. steering pump gears; 18. steering pumps; 19. engine flywheels; 20. jackscrews.
Detailed description of the invention
As shown in Figure 1 and 2, a kind of Electric bulldozer power assembly structure, its technical scheme is: this power assembly comprises power connector and oil pump transfer device two parts.
Wherein, described power connector is made up of engine flywheel 19, shaft coupling 11, generator terminal pad 12 and generator 8, be connected with the casing 15 of power output device by generator terminal pad 12 after generator 8 connects shaft coupling 11, wherein, generator terminal pad 12 be equipped with oil sealing 10; Wherein, shaft coupling 11 is withstood on key by jackscrew 20 and carries out axial location.
Meanwhile, generator 8 is connected with bulldozer frame by supplemental support 9.
The driving gear 1 that described oil pump transfer device is connected by engine flywheel 19 engages idle pulley 2, connects working barrel driving gear 4 be connected to work oil pump 7 by idler gear 3; Meanwhile, the driving gear 1 that engine flywheel 19 connects connects steering pump 18 after engaging steering pump gear 17, connects scavenge oil pump 13 after connecting thereafter the engaging mechanism of oil scavenger pump gear 14 and scavenge oil pump idle pulley 16.
The operating principle of this detailed description of the invention is: power is spread out of from driving gear 1 point of two parts by engine flywheel 19 by engine power, a part is delivered to generator shaft by shaft coupling 11, be electric energy by generator 8 by changes mechanical energy, movable motor is driven again by control system, another part power is delivered to work oil pump 7 by driving gear 1 respectively through gear drive, steering pump 18 and scavenge oil pump 13, be hydraulic energy by changes mechanical energy, hydraulic energy is passed to each operating cylinder by work oil pump 7, hydraulic energy is passed to steering cluth and brake valve by braking in a turn oil pump, for bulldozer steering brake provides power source, lubrication oil in transfer device casing is imported rear axle box by certain flow by scavenge oil pump 13, power output device casing and rear axle box body is made to form a kind of reasonably oil mass balance.
Novel electric transmission bulldozer power assembly not only solves the problem of oil return of hydraulic pump power taking and lubrication oil, in addition because physical dimension and intrinsic frequency have larger change, for improving motor to the adaptive capacity of dynamic load, in rotating speed rises process, reach intrinsic frequency after avoiding engine start and cause power train resonance, so be connected with damping device at motor and generator.Generator own wt and axial dimension are comparatively large, and power assembly considers bulldozer operation operating mode, decreases the stressed with the dependability ensureing structural connection of connecting portion as far as possible.
In addition, the sealing problem of power output device and generator axle head is also solved.
The above is detailed description of the invention of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications are also considered as protection domain of the present utility model.
Claims (3)
1. an Electric bulldozer power assembly structure, is characterized in that: this power assembly comprises power connector and oil pump transfer device two parts:
Wherein, described power connector is made up of engine flywheel, shaft coupling, generator terminal pad and generator, is connected after generator connects shaft coupling by generator terminal pad with the casing of power output device;
Wherein, the driving gear engagement idle pulley that described oil pump transfer device is connected by engine flywheel, connects working barrel driving gear by idler gear and is connected to work oil pump; Meanwhile, connect steering pump after the driving gear engagement steering pump gear that engine flywheel connects, after connecting thereafter the engaging mechanism of oil scavenger pump gear and scavenge oil pump idle pulley, connect scavenge oil pump;
Wherein, generator is connected with bulldozer frame by supplemental support.
2. Electric bulldozer power assembly structure according to claim 1, is characterized in that: on generator terminal pad, arrange oil sealing.
3. Electric bulldozer power assembly structure according to claim 1, is characterized in that: shaft coupling is arranged on key by jackscrew and carries out axial location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420615713.4U CN204199349U (en) | 2014-10-23 | 2014-10-23 | A kind of Electric bulldozer power assembly structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420615713.4U CN204199349U (en) | 2014-10-23 | 2014-10-23 | A kind of Electric bulldozer power assembly structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204199349U true CN204199349U (en) | 2015-03-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420615713.4U Expired - Fee Related CN204199349U (en) | 2014-10-23 | 2014-10-23 | A kind of Electric bulldozer power assembly structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204199349U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090197A (en) * | 2015-09-02 | 2015-11-25 | 山东华芯富创电子科技有限公司 | Locating structure for parts on shaft |
-
2014
- 2014-10-23 CN CN201420615713.4U patent/CN204199349U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090197A (en) * | 2015-09-02 | 2015-11-25 | 山东华芯富创电子科技有限公司 | Locating structure for parts on shaft |
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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: 20150311 Termination date: 20191023 |