CN106080189A - Power drive system and monomotor crane - Google Patents
Power drive system and monomotor crane Download PDFInfo
- Publication number
- CN106080189A CN106080189A CN201610589601.XA CN201610589601A CN106080189A CN 106080189 A CN106080189 A CN 106080189A CN 201610589601 A CN201610589601 A CN 201610589601A CN 106080189 A CN106080189 A CN 106080189A
- Authority
- CN
- China
- Prior art keywords
- bevel gear
- drive system
- power
- actuating unit
- electromotor
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K25/00—Auxiliary drives
- B60K25/06—Auxiliary drives from the transmission power take-off
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/20—Control systems or devices for non-electric drives
Abstract
The invention discloses a kind of actuating unit, power drive system and monomotor crane.The actuating unit that the present invention provides includes electromotor, actuating unit and transfer case of getting on the bus, described electromotor and the power shaft drive connection of described actuating unit, the output shaft of described actuating unit is connected with described transfer case of getting on the bus, described in get on the bus transfer case for driving oil pump group.The power shaft drive connection of electromotor and transfer case of getting on the bus in the power drive system that the present invention provides, transfer case of getting on the bus is connected with oil pump group, electromotor and get on the bus and be provided with actuating unit between transfer case.The kind of drive in the power drive system that the present invention provides, for electromotor to be controlled oil pump group by actuating unit, by control oil pump group discharge capacity and oil pressure relief, provides adjustable resistance to reduce speed to drive system.There is simple in construction and the advantage such as easy to use.
Description
Technical field
The present invention relates to technical field of engineering machinery, particularly to a kind of power drive system and monomotor crane,
A kind of power drive system alleviating weight and monomotor crane.
Background technology
The complete machine dynamical system of mobilecrane has two kinds of auxiliary plans at present: monomotor dynamical system is started with double
Mechanomotive force system.Monomotor dynamical system i.e. gets on and off a shared electromotor, performs road driving and hoisting operation.Double
Engine power system i.e. descends car engine to perform road driving, and upper car engine performs hoisting operation.
Commonly used pair of the hoister in large tonnage of current more than 100 tons starts form, i.e. descends car engine to be served only for driving
Chassis travels, and upper car engine is served only for driving vehicle hydraulic system etc..The shortcoming that this arrangement form brings has: (1) price
Costliness, two set dynamical systems, need two electromotors, two set cooling systems, two set fuel system and independent electric power systems etc..
(2) Heavy Weight, upper car engine and subsidiary cooling system thereof and fuel system, add complete vehicle weight.(3) space is nervous,
Upper car engine needs independent heat radiation and fuel system, allows natively nervous space of getting on the bus, it appears more awkward.
In order to solve above-mentioned Heavy Weight and the problem of space anxiety, prior art is by the PWTN of hoister in large tonnage
System is designed as: engine mission power transmission shaft transfer case center steering transfer case power transmission shaft of getting off is got on the bus transfer
Case；Get off and be additionally provided with two power delivery outlets below transfer case, the electromotor two power delivery outlets by transfer case of getting off
The most forward and backward connection power transmission shaft is delivered to the drive shaft of vehicle bridge, it is achieved vehicle travels.
Although technique scheme using single electromotor, but its power transmission line being complex.Also need to basis
Tonnage is provided with chassis Retarder and current vortex retarder, when crane needs slow or lower long slope, needs chassis liquid
Power retarder and current vortex retarder slow down, and structure is complex.
For solving the problems referred to above, the present invention proposes below scheme.
Summary of the invention
It is an object of the invention to provide a kind of power drive system and monomotor crane, to solve in prior art
Technical problem.
The present invention provides a kind of actuating unit, described actuating unit include electromotor, actuating unit and
Get on the bus transfer case, the power shaft drive connection of described electromotor and described actuating unit, described actuating unit defeated
Shaft is connected with described transfer case of getting on the bus, described in get on the bus transfer case for driving oil pump group.
In the power drive system that the present invention provides, electromotor is directly connected with actuating unit, and electromotor passes through power
Actuating device controls the get on the bus discharge capacity of oil pump group and oil pressure relief, provides adjustable resistance to reduce speed to drive system.This
The relatively simple kind of drive of transfer route in the power drive system that invention provides, and electromotor is by actuating unit pair
Oil pump group is controlled, it is not necessary to arrange chassis Retarder and current vortex retarder achieves that large-tonnage crane needs
Want slow.There is simple in construction and the advantage such as easy to use.
Further, described actuating unit includes: the first bevel gear set, the second bevel gear set, input bevel gear and
Output bevel gear is taken turns；The rotating shaft of described first bevel gear set is nested in the rotating shaft of described second bevel gear set, described input cone tooth
Wheel respectively with described first bevel gear set and the lower bevel gear of the second bevel gear set engage, described output bevel gear take turns respectively with institute
State the first bevel gear set and the second bevel gear set upper bevel gear engagement.
Using the axle transmission power that bevel gear set is mutually nested with two, interior axle and outer shaft are oppositely oriented, the moment of torsion of transmission
Also contrary, after therefore outputting power to get on the bus by output bevel gear wheel, do not result in turntable and rotate under free rotary pattern.
Further, the output axis that the input axis of described input bevel gear and described output bevel gear are taken turns be arranged in parallel.
Further, the power shaft of described input bevel gear 7 and the axis of output shaft of output bevel gear wheel 3 all with described
The axis of the rotating shaft of the first bevel gear set is vertically arranged.
Further, described actuating unit also includes that gear-box, described gear-box include the first gear-box and second
Gear-box, described first bevel gear set and the upper bevel gear of the second bevel gear set and output bevel gear wheel may be contained within described first
In gear-box, described first bevel gear set and the lower bevel gear of the second bevel gear set and input bevel gear may be contained within described the
In two gear-boxes.
Further, the rotating shaft of described first bevel gear set, the rotating shaft of the second bevel gear set, described input bevel gear defeated
Enter and be provided with bearing between output shaft and the described gear-box of axle and output bevel gear wheel.
For the ease of controlling, further, between described electromotor and described actuating unit, it is provided with clutch.Will
Driveline clutch combines, and when crane needs slow or lower long slope, is got on the bus oil pump capacity and oil pressure relief by control,
Adjustable resistance is provided to reduce speed to drive system.Clutch in this present embodiment also can often combine, it is not necessary to slow
Time, the oil pump group discharge capacity zero that will get on the bus, and make oil circuit be in unloading condition.
Further, also include the transfer case of getting off being connected with described electromotor, described in transfer case of getting off pass through power transmission shaft
It is connected with vehicle bridge.Get off and also have a road power on transfer case by multiple drive shafts and power transmission shaft transmission, just to realize vehicle
Often travel.
For the ease of speed controlling, further, described electromotor and described getting off are provided with change speed gear box between transfer case.
Present invention also offers a kind of monomotor crane, including power drive system as above, wherein, also wrap
Including turntable, described oil pump group is connected with described turntable.
The drive mechanism of getting on the bus of monomotor crane carrys out power taking by engine power system of getting off, by this angle transmission
Device realizes the get on and off horizontal direction of power, mechanical type transmission, completes car load and travels and hoisting operation of getting on the bus.
The power drive system of present invention offer and monomotor crane, wherein, the electromotor in power drive system
With the power shaft drive connection of transfer case of getting on the bus, transfer case is connected with oil pump group, and electromotor and getting on the bus is provided with between transfer case
Actuating unit.The power shaft drive connection of electromotor and transfer case of getting on the bus in the power drive system that the present invention provides,
Transfer case of getting on the bus is connected with oil pump group, electromotor and get on the bus and be provided with actuating unit between transfer case.The present invention provides
The kind of drive in power drive system is for be controlled electromotor oil pump group by actuating unit, by controlling oil
Pump group discharge capacity and oil pressure relief, provide adjustable resistance to reduce speed to drive system.There is simple in construction and easy to use
Etc. advantage.
Accompanying drawing explanation
The accompanying drawing of the part constituting the present invention is used for providing a further understanding of the present invention, and the present invention's is schematic real
Execute example and illustrate for explaining the present invention, being not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of actuating unit according to embodiments of the present invention；
Fig. 2 is the structural representation of power drive system according to embodiments of the present invention.
In figure:
1-bearing；2-the first bevel gear；3-output bevel gear is taken turns；
4-the first gear-box；5-the second bevel gear；6-the second gear-box；
7-inputs bevel gear；11-vehicle bridge；12-electromotor；
13-clutch；14-change speed gear box；15-gets off transfer case；
16-drive shaft；17-actuating unit；18-gets on the bus transfer case；
19-oil pump group.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the present invention and the feature in embodiment can phases
Combination mutually.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " connects " and should do
Broadly understood, connect for example, it may be fixing, it is also possible to be to removably connect, or be integrally connected；Can be to be mechanically connected,
It can also be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two element internals
Connection.For the ordinary skill in the art, above-mentioned term specifically containing in the present invention can be understood with concrete condition
Justice.
The power drive system that the present invention provides includes: electromotor 12, actuating unit 17 and transfer case 18 of getting on the bus, institute
State the power shaft drive connection of electromotor 12 and described actuating unit 17, the output shaft of described actuating unit 17 and institute
State transfer case 18 of getting on the bus to connect, described in get on the bus transfer case 18 for driving oil pump group 19.
The power shaft drive connection of electromotor 12 and transfer case 18 of getting on the bus in the power drive system that the present invention provides, on
Car transfer case 18 is connected with oil pump group 19, electromotor and get on the bus and be provided with actuating unit between transfer case 18.The present invention carries
The kind of drive in the power drive system of confession is for be controlled electromotor 12 oil pump group 19 by actuating unit, logical
Cross control oil pump group 19 discharge capacity and oil pressure relief, provide adjustable resistance to reduce speed to drive system.There is simple in construction
And the advantage such as easy to use.
For the ease of controlling, between described electromotor 12 and the described actuating unit 17 in the present invention, it is provided with clutch
Device 13.Clutch relies on tribology principle Transmission Engine power, has separation and combines two states.Electromotor 12 passes through clutch
The control of device 13, it is achieved with the connection of actuating unit.Driveline clutch is combined, when crane need slow or under
During long slope, got on the bus oil pump capacity and oil pressure relief by control, provide adjustable resistance to reduce speed to drive system.Book
Clutch 13 in embodiment also can often combine, it is not necessary to time slow, the oil pump group 19 discharge capacity zero that will get on the bus, and makes at oil circuit
In unloading condition.
Further, also including the transfer case 15 of getting off being connected with described electromotor 12, transfer case 15 of getting off passes through transmission
Axle is connected with vehicle bridge 11.Get off and also have on transfer case 15 a road power to be transmitted by multiple drive shafts 16 and power transmission shaft, with realization
The normal traveling of vehicle.
For the ease of speed controlling, in the present embodiment further, described electromotor 12 with described get off transfer case 15 it
Between be provided with change speed gear box 14.
Power transmission line is: electromotor 12-clutch 13-power transmission shaft-actuating unit 17-power transmission shaft-on
Car transfer case 18.Above-mentioned all parts is all located on vehicle frame below plane substantially.
Present invention also offers a kind of monomotor crane, including power drive system as above, wherein, also wrap
Including turntable, described oil pump group 19 is connected with described turntable.
The drive mechanism of getting on the bus of monomotor crane carrys out power taking by engine power system of getting off, by this angle transmission
Device realizes the get on and off horizontal direction of power, mechanical type transmission, completes car load and travels and hoisting operation of getting on the bus.
Under conditions of not increasing complete machine cost and car load volume, by the engine power machinery to transmission of getting on the bus of getting off
Formula connects, and the operation that hoists for getting on the bus provides reliable power resources, it is possible to the efficient transmission of the power that realizes getting on and off.Save whole
Machine parts arrangement space, gets on the bus and need not arrange electromotor and radiator and fuel tank etc., reduce cost, improve work
Efficiency and overall performance.
Described actuating unit 17 in the present embodiment includes: the first bevel gear set, the second bevel gear set, input cone tooth
Wheel 7 and output bevel gear wheel 3；The rotating shaft of described first bevel gear set is nested in the rotating shaft of described second bevel gear set.Described defeated
Enter bevel gear 7 respectively with described first bevel gear set and the lower bevel gear of the second bevel gear set engage, described output bevel gear wheel 3
Respectively with described first bevel gear set and the upper bevel gear of the second bevel gear set engage.
First bevel gear set includes two first bevel gears 2 and the first rotating shafts, and two the first bevel gears 2 lay respectively at described
The two ends up and down of the first rotating shaft.Second bevel gear set includes two second bevel gears 5 and the second rotating shafts, two the second bevel gears 5
Lay respectively at the two ends up and down of described second rotating shaft.Described first rotating shaft is nested in described second rotating shaft, described input cone tooth
Wheel 7 engages with the first bevel gear 2 and second bevel gear 5 of lower end respectively, described output bevel gear wheel 3 respectively with the first cone of upper end
Gear 2 and the second bevel gear 5 engage.
Using the axle transmission power that bevel gear set is mutually nested with two, interior axle and outer shaft are oppositely oriented, the moment of torsion of transmission
Also contrary, after therefore outputting power to get on the bus by output bevel gear wheel 3, do not result in turntable and turn under free rotary pattern
Dynamic.
Actuating unit 17 is to perform power transmission, the parts of distribution in power drive system.Its internal gear train,
Major function has adjustment transmission speed ratio, increases power taking mouth, transmits and distribute driving power etc..
Further, the input axis of described input bevel gear 7 is parallel with the output axis of described output bevel gear wheel 3 sets
Put, power shaft and output shaft are arranged with the oil sealing for sealing lubricating oil and packing ring respectively.
Further, the power shaft of described input bevel gear 7 and the axis of output shaft of output bevel gear wheel 3 all with described
The axis of the rotating shaft of the first bevel gear set is vertically arranged.
In order to safer, in the present embodiment further, described actuating unit 17 also includes gear-box, described tooth
Roller box includes the first gear-box 4 and the second gear-box 6, described first bevel gear set and the second bevel gear set upper bevel gear and
Output bevel gear wheel 3 may be contained within described first gear-box 4, described first bevel gear set and the lower cone tooth of the second bevel gear set
Wheel and input bevel gear 7 may be contained within described second gear-box 6.
Further, the rotating shaft of described first bevel gear set, the rotating shaft of the second bevel gear set, described input bevel gear 7
It is provided with bearing between output shaft and the described gear-box of power shaft and output bevel gear wheel 3.
Described first bevel gear set include the first rotating shaft and be arranged on the first of described first rotating shaft two ends bevel gear and
First time bevel gear；Described second bevel gear set includes the second rotating shaft and is arranged at the second epicone tooth at described second rotating shaft two ends
Wheel and second time bevel gear, described first rotating shaft is nested in described second rotating shaft；
Described input bevel gear 7 engages with bevel gear on bevel gear and second on described first respectively, described output bevel gear
Wheel 3 engages with described first time bevel gear and second time bevel gear respectively.The output shaft of described output bevel gear wheel 3 is got on the bus with described
The power shaft of transfer case 18 connects, and the output shaft of described change speed gear box 14 is connected with the described power shaft getting off transfer case 15.
When the power drive system that the present invention provides uses, power transmission line is: electromotor-clutch-transmission
Axle-actuating unit-power transmission shaft-transfer case of getting on the bus.Got on the bus oil pump capacity and oil pressure relief by control, to power train
System provides adjustable resistance to reduce speed.Use the axle transmission power that bevel gear set is mutually nested with two, interior axle and outer shaft
Oppositely oriented, the moment of torsion of transmission is also contrary, after therefore outputting power to get on the bus by output bevel gear wheel 3, does not results in turntable
Rotate under free rotary pattern.
The power drive system of present invention offer and monomotor crane, wherein, described in power drive system
The power shaft drive connection of motivation and described transfer case of getting on the bus, described transfer case is connected with described oil pump group, described electromotor and
Get on the bus and between transfer case, be provided with actuating unit.Electromotor in the power drive system that the present invention provides and transfer of getting on the bus
The power shaft drive connection of case, transfer case of getting on the bus is connected with oil pump group, and electromotor and getting on the bus is provided with power and passes between transfer case
Dynamic device.The present invention provide power drive system in the kind of drive be by actuating unit by electromotor to oil pump group
It is controlled, by control oil pump group discharge capacity and oil pressure relief, provides adjustable resistance to reduce speed to drive system.Have
Simple in construction and the advantage such as easy to use.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (10)
1. a power drive system, it is characterised in that including: electromotor (12), actuating unit (17) and transfer of getting on the bus
The power shaft drive connection of case (18), described electromotor (12) and described actuating unit (17), described actuating unit
(17) output shaft is connected with described transfer case of getting on the bus (18), described in transfer case (18) of getting on the bus be used for driving oil pump group (19).
Power drive system the most according to claim 1, it is characterised in that described actuating unit (17) including: the
One bevel gear set, the second bevel gear set, input bevel gear (7) and output bevel gear wheel (3)；The rotating shaft of described first bevel gear set is embedding
Be placed in the rotating shaft of described second bevel gear set, described input bevel gear (7) respectively with described first bevel gear set and second
Bevel gear set lower bevel gear engagement, described output bevel gear wheel (3) respectively with described first bevel gear set and the second bevel gear
The upper bevel gear engagement of group.
Power drive system the most according to claim 2, it is characterised in that the input axis of described input bevel gear (7)
It is arranged in parallel with the output axis of described output bevel gear wheel (3).
Power drive system the most according to claim 2, it is characterised in that the power shaft of described input bevel gear (7)
And the axis of the output shaft of output bevel gear wheel (3) all axis with the rotating shaft of described first bevel gear set are vertically arranged.
Power drive system the most according to claim 2, it is characterised in that described actuating unit (17) also includes tooth
Roller box, described gear-box includes the first gear-box (4) and the second gear-box (6), described first bevel gear set and second cone tooth
In the upper bevel gear of wheels and output bevel gear wheel (3) may be contained within described first gear-box (4), described first bevel gear set and
The lower bevel gear of the second bevel gear set and input bevel gear (7) may be contained within described second gear-box (6).
Power drive system the most according to claim 5, it is characterised in that the rotating shaft of described first bevel gear set, second
Output shaft and the described gear-box of the rotating shaft of bevel gear set, the power shaft of described input bevel gear (7) and output bevel gear wheel (3) it
Between be provided with bearing.
Power drive system the most according to claim 1, it is characterised in that described electromotor (12) and described power transmission
Clutch (13) it is provided with between device (17).
Power drive system the most according to claim 1, it is characterised in that also include being connected with described electromotor (12)
Get off transfer case (15), described in transfer case (15) of getting off be connected with vehicle bridge (11) by power transmission shaft.
Power drive system the most according to claim 8, it is characterised in that described electromotor (12) and described transfer of getting off
Change speed gear box (14) it is provided with between case (15).
10. a monomotor crane, including the power drive system as described in 1-9 any one, it is characterised in that also
Including turntable, described oil pump group (19) is connected with described turntable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610589601.XA CN106080189B (en) | 2016-07-25 | 2016-07-25 | Power drive system and monomotor crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610589601.XA CN106080189B (en) | 2016-07-25 | 2016-07-25 | Power drive system and monomotor crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106080189A true CN106080189A (en) | 2016-11-09 |
| CN106080189B CN106080189B (en) | 2018-08-28 |
Family
ID=57450331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610589601.XA Active CN106080189B (en) | 2016-07-25 | 2016-07-25 | Power drive system and monomotor crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106080189B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109114207A (en) * | 2018-08-07 | 2019-01-01 | 中联重科股份有限公司 | Power drive system and crane |
| CN112455224A (en) * | 2020-11-27 | 2021-03-09 | 三一汽车起重机械有限公司 | Transfer case, chassis assembly and crane |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1637383A3 (en) * | 2004-09-17 | 2006-08-16 | PIV Drives GmbH | Utility vehicle comprising a continuously variable drive and power take off assembly |
| CN102390258A (en) * | 2011-10-18 | 2012-03-28 | 中联重科股份有限公司 | Chassis driving system of crane, chassis and crane |
| CN102897033A (en) * | 2011-07-29 | 2013-01-30 | 埃英根利勃海尔-维克股份有限公司 | Drive device for a crane |
| CN102905969A (en) * | 2010-09-27 | 2013-01-30 | 三菱重工业株式会社 | Azimuth propeller |
| CN103921675A (en) * | 2014-04-22 | 2014-07-16 | 徐州重型机械有限公司 | Single-engine power driving device and method and crane |
| CN204985585U (en) * | 2015-07-22 | 2016-01-20 | 李久振 | Rural area tiller transmission system |
| CN105437966A (en) * | 2014-10-31 | 2016-03-30 | 徐州重型机械有限公司 | Power takeoff with clutch function and crane |
| CN205970858U (en) * | 2016-07-25 | 2017-02-22 | 三一汽车起重机械有限公司 | Power transmission system and unitary engine hoist |
-
2016
- 2016-07-25 CN CN201610589601.XA patent/CN106080189B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1637383A3 (en) * | 2004-09-17 | 2006-08-16 | PIV Drives GmbH | Utility vehicle comprising a continuously variable drive and power take off assembly |
| CN102905969A (en) * | 2010-09-27 | 2013-01-30 | 三菱重工业株式会社 | Azimuth propeller |
| CN102897033A (en) * | 2011-07-29 | 2013-01-30 | 埃英根利勃海尔-维克股份有限公司 | Drive device for a crane |
| CN102390258A (en) * | 2011-10-18 | 2012-03-28 | 中联重科股份有限公司 | Chassis driving system of crane, chassis and crane |
| CN103921675A (en) * | 2014-04-22 | 2014-07-16 | 徐州重型机械有限公司 | Single-engine power driving device and method and crane |
| CN105437966A (en) * | 2014-10-31 | 2016-03-30 | 徐州重型机械有限公司 | Power takeoff with clutch function and crane |
| CN204985585U (en) * | 2015-07-22 | 2016-01-20 | 李久振 | Rural area tiller transmission system |
| CN205970858U (en) * | 2016-07-25 | 2017-02-22 | 三一汽车起重机械有限公司 | Power transmission system and unitary engine hoist |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109114207A (en) * | 2018-08-07 | 2019-01-01 | 中联重科股份有限公司 | Power drive system and crane |
| CN112455224A (en) * | 2020-11-27 | 2021-03-09 | 三一汽车起重机械有限公司 | Transfer case, chassis assembly and crane |
| CN112455224B (en) * | 2020-11-27 | 2022-03-22 | 三一汽车起重机械有限公司 | Transfer case, chassis assembly and crane |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106080189B (en) | 2018-08-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101755069B1 (en) | Hybrid work vehicle | |
| CN204367890U (en) | For two grades of hydraulic control speed changing driver elements of electronlmobil | |
| CN105644335A (en) | Dual-motor power system and dual-motor hybrid power system for vehicle | |
| JP7107202B2 (en) | Vehicle electric drive | |
| CN105236308A (en) | Forklift capable of running in two directions | |
| CN102529673B (en) | Hybrid power electrical transmission device of caterpillar vehicle | |
| CN106080189A (en) | Power drive system and monomotor crane | |
| CN106090173A (en) | A kind of automatic gear-box for electric motor car | |
| CN106090172A (en) | Electric motor car automatic gear-box | |
| CN103707763A (en) | Self-propelled work machine | |
| US9783036B2 (en) | Twin-wheel drive module | |
| US8336650B2 (en) | Vehicle crane with a bogie and a superstructure | |
| CN205970858U (en) | Power transmission system and unitary engine hoist | |
| CN205736871U (en) | A kind of drive system of pure electric automobile | |
| CN203020075U (en) | Differential lock and rear axle assembly of light-duty engineering truck | |
| CN209305351U (en) | Drive system and carrier | |
| CN105564227A (en) | Sandwich mechanical hydraulic compound transmission case, and road maintenance truck power control method | |
| CN107720568A (en) | Dynamical system and crane for crane | |
| CN207524843U (en) | Crane power transmission device | |
| CN205859084U (en) | A kind of automatic gear-box | |
| CN106051106B (en) | Automatic gear-box | |
| CN205859087U (en) | A kind of electric motor car automatic gear-box | |
| CN205615342U (en) | Vehicular concrete pump | |
| CN202952825U (en) | Energy-saving transfer case for hybrid electric vehicles | |
| CN214928735U (en) | Drive axle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |