CN101934727B - Running drive device and road grader - Google Patents
Running drive device and road grader Download PDFInfo
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- CN101934727B CN101934727B CN 201010276980 CN201010276980A CN101934727B CN 101934727 B CN101934727 B CN 101934727B CN 201010276980 CN201010276980 CN 201010276980 CN 201010276980 A CN201010276980 A CN 201010276980A CN 101934727 B CN101934727 B CN 101934727B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2253—Controlling the travelling speed of vehicles, e.g. adjusting travelling speed according to implement loads, control of hydrostatic transmission
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- 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
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/36—Arrangement or mounting of transmissions in vehicles for driving tandem wheels
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
- E02F3/80—Component parts
- E02F3/84—Drives or control devices therefor, e.g. hydraulic drive systems
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/202—Mechanical transmission, e.g. clutches, gears
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/40—Special vehicles
- B60Y2200/41—Construction vehicles, e.g. graders, excavators
- B60Y2200/411—Bulldozers, Graders
Abstract
The invention relates to the technical field of engineering machinery, in particular to a running drive device. The running drive device comprises an engine, a hydraulic pump, a hydraulic motor, drive wheels and a variable speed bridge balance box assembly, wherein the power input end of the variable speed bridge balance box assembly is connected with the power output end of the hydraulic motor, and the power output end of the variable speed bridge balance box assembly is connected with the drive wheels. The running drive device can realize infinitely variable speed in a certain range, and has certain load adaptability and large speed adjusting range; and because the drive wheels on the left and right sides are mechanically synchronized, so the device has good synchronization performance. The invention also discloses a road grader with the running drive device.
Description
Technical field
The present invention relates to technical field of engineering machinery, relate in particular to a kind of running driving device.The invention still further relates to a kind of road grader with above-mentioned running driving device.
Background technology
Road grader is a kind of take perching knife as construction machinery and equipment main, that be equipped with other multiple interchangeable apparatus for work, carry out prepartion of land and shaping, it is mainly used in the smooth operation of the large tracts of land such as road, airport, irrigation and water conservancy and scrapes slope, ditching, bulldozes, loosens the soil, removes the construction operation of the aspect such as ice and snow on road surfaces, is the visual plant in defence engineering, traffic, mine, the Water Capital Construction construction.
At present, the running driving device of road grader mainly contains mechanical drive, hydraulic machine transmission, three kinds of situations of hydrostatic transmissions, below these three kinds of situations is introduced respectively.
Please referring to Fig. 1, Fig. 1 is mechanically operated power transmission line schematic diagram in the prior art.
As shown in Figure 1, this running driving device of road grader comprises driving engine, mechanical gear box, transmission shaft, drive axle and tandem-driving bogie assembly, drive wheel, and the power of driving engine output is passed to drive wheel through mechanical gear box, transmission shaft, drive axle and tandem-driving bogie assembly.
The running driving device of this structure, driving efficiency is high, but can not realize stepless change, and the load adaptive ability is relatively poor.
Please referring to Fig. 2, Fig. 2 is the power transmission line schematic diagram of hydraulic machine transmission in the prior art.
As shown in Figure 2, this running driving device comprises driving engine, turbine transformer, mechanical gear box, transmission shaft, drive axle and tandem-driving bogie assembly, drive wheel, compare with mechanical drive, the running driving device of this structure is provided with turbine transformer between driving engine and mechanical gear box.The running driving device of this structure has certain load adaptive ability, but efficiently distinguishes narrowly, and can not realize stepless change.
Please referring to Fig. 3, Fig. 3 is the power transmission line schematic diagram of hydrostatic transmissions in the prior art.
As shown in Figure 3, this running driving device comprises driving engine, Hydraulic Pump, HM Hydraulic Motor, deceleration tandem-driving bogie, drive wheel.Engine driven Hydraulic Pump, Hydraulic Pump provides the high pressure liquid force feed to HM Hydraulic Motor, and the high pressure liquid force feed drives the HM Hydraulic Motor rotation, and the rotation of HM Hydraulic Motor drives drive wheel works by the deceleration tandem-driving bogie.The running driving device of this structure, hydrostatic transmissions can realize stepless change, has stronger load adaptive ability, easy and simple to handle, but speed adjustable range can not satisfy road grader operating speed area requirement, be that speed adjustable range is less, and the drive wheel synchronization job poor-performing of the left and right sides, operating mode underdrive efficient is lower running at high speed.
Therefore, how to develop a kind ofly can realize stepless change, to have certain load adaptive ability, a speed adjustable range larger, the running driving device that net synchronization capability is good and efficient is higher of easy and simple to handle, left and right sides drive wheel becomes the technical barrier that those skilled in the art need to be resolved hurrily.
Summary of the invention
First purpose of the present invention provides a kind of running driving device, this running driving device can be realized the interior stepless change of certain limit, be had certain load adaptive ability, easy and simple to handle, and speed adjustable range net synchronization capability large and left and right sides drive wheel is good.Another object of the present invention provides a kind of road grader with above-mentioned running driving device.
In order to realize above-mentioned first purpose, the invention provides a kind of running driving device, comprise driving engine, Hydraulic Pump, HM Hydraulic Motor, drive wheel, it is characterized in that, also comprise speed changing bridge tandem-driving bogie assembly, the power intake of described speed changing bridge tandem-driving bogie assembly links to each other with the clutch end of described HM Hydraulic Motor, and the clutch end of described speed changing bridge tandem-driving bogie assembly links to each other with described drive wheel.
Preferably, described speed changing bridge tandem-driving bogie assembly comprises power input shaft, clutch equipment, the first transmission shaft, diff, semiaxis, speed reduction gearing, tandem-driving bogie, described power input shaft is connected with the power intake of clutch equipment by gear, the clutch end of described clutch equipment is connected with described the first transmission shaft by gear, described the first transmission shaft is connected with the power intake of described diff by gear, the clutch end of described diff is connected with the power intake of described speed reduction gearing, the clutch end of described speed reduction gearing links to each other with the power intake of tandem-driving bogie, and the clutch end of described tandem-driving bogie links to each other with drive wheel.
Preferably, described speed reduction gearing is planetary gear speed reducing mechanism.
Preferably, described speed reduction gearing is the straight gear speed reduction gearing.
Preferably, on described the first transmission shaft parking brake is installed.
Preferably, described tandem-driving bogie comprises chain, axletree and sprocket shaft, and described sprocket shaft connects the clutch end of described speed reduction gearing, and described chain connects respectively described axletree, described sprocket shaft, and described axletree connects the wheel hub of described drive wheel.
Preferably, described diff is mechanical differential gear box.
Preferably, establish reversing arrangement on the oil circuit between described Hydraulic Pump and the described HM Hydraulic Motor.
Running driving device provided by the invention comprises driving engine, Hydraulic Pump, HM Hydraulic Motor, speed changing bridge tandem-driving bogie assembly and drive wheel, the clutch end of driving engine links to each other with the power intake of Hydraulic Pump, the oil outlet of Hydraulic Pump is communicated with the oil inlet of HM Hydraulic Motor, the clutch end of HM Hydraulic Motor links to each other with the power intake of speed changing bridge tandem-driving bogie assembly, and the clutch end of speed changing bridge tandem-driving bogie assembly links to each other with drive wheel.
The running driving device of this structure, Engine driven Hydraulic Pump work, change mechanical energy into hydraulic energy, the rotation of hydraulic pump drive HM Hydraulic Motor, change hydraulic energy into mechanical energy and pass to speed changing bridge tandem-driving bogie assembly, speed changing bridge tandem-driving bogie assembly carries out reduction of speed to the mechanical energy of input and increases and transmission of power is travelled to drive wheel after turning round.
The discharge capacity of step-less adjustment Hydraulic Pump and HM Hydraulic Motor can realize the infinite speed variation of running driving device; When outer load is larger, automatically tune up the discharge capacity of HM Hydraulic Motor, or increase the reduction ratio of the speed reduction gearing in the speed changing bridge tandem-driving bogie assembly, improve its output torque, reduce the speed of a motor vehicle; When for load hour, then automatically turn down HM Hydraulic Motor discharge capacity and (or) reduce the reduction ratio of the speed reduction gearing in the speed changing bridge tandem-driving bogie assembly, improve the speed of a motor vehicle, give full play to engine power, realize the adaptation function of external load, make horsepower output and the outer load Proper Match of driving engine, improve the work efficiency of driving system, alleviate operator's labour intensity; Change the gear of speed reduction gearing in the speed changing bridge tandem-driving bogie assembly, the reduction ratio that namely changes speed reduction gearing can be realized the switching of the high low speed of running driving device, enlarges the speed adjustable range of running driving device; Differential when the diff in the speed changing bridge tandem-driving bogie assembly can be realized turning travels and the synchronization job during straight-line travelling, and the net synchronization capability of left and right sides drive wheel is better.
In the preferred scheme, described speed changing bridge tandem-driving bogie assembly comprises power input shaft, clutch equipment, the first transmission shaft, diff, semiaxis, speed reduction gearing, tandem-driving bogie, described power input shaft is connected with the power intake of clutch equipment by gear, the clutch end of described clutch equipment be connected with described the first transmission shaft by gear, described the first transmission shaft is connected with the power intake of described diff by gear, the clutch end of described diff is connected with the power intake of described speed reduction gearing, the clutch end of described speed reduction gearing is connected with the power intake of tandem-driving bogie, and the clutch end of described tandem-driving bogie is connected with drive wheel.
The running driving device of this structure, speed reduction gearing, transmission shaft, diff, back axle, tandem-driving bogie are integrated in one, form speed changing bridge tandem-driving bogie assembly, reduced driver element, improved the driving efficiency of driving system, greatly dwindled the space of driving system, so that transmission device is compacter, cost is lower.
In order to realize above-mentioned second purpose, the invention provides a kind of road grader, this road grader comprises above-mentioned running driving device, because above-mentioned running driving device has above-mentioned technique effect, the road grader with this running driving device also should have corresponding technique effect.
Description of drawings
Fig. 1 is mechanically operated power transmission line schematic diagram in the prior art;
Fig. 2 is the power transmission line schematic diagram of hydraulic machine transmission in the prior art;
Fig. 3 is the power transmission line schematic diagram of hydrostatic transmissions in the prior art;
Fig. 4 is the structural representation of a kind of specific embodiment of running driving device provided by the present invention;
Fig. 5 is the structural representation of a kind of concrete structure of speed changing bridge tandem-driving bogie assembly among Fig. 4;
Fig. 6 is the structural representation of the another kind of concrete structure of speed changing bridge tandem-driving bogie assembly among Fig. 4;
Wherein, among Fig. 1-Fig. 6:
Power input shaft 41, low gear power-transfer clutch 42, high speed gear power-transfer clutch 43, clutch shaft 44, the first transmission shaft 45, diff 46, semiaxis 47, speed reduction gearing 48, sprocket shaft 49, chain 410, axletree 411, parking brake 412, wheel hub 51;
Power input shaft 41 ', low gear power-transfer clutch 42 ', high speed gear power-transfer clutch 43 ', clutch shaft 44 ', the first transmission shaft 45 ', parking brake 46 ', second driving shaft 47 ', diff 48 ', straight gear speed reduction gearing 49 ', semiaxis 410 '.
The specific embodiment
In order to make those skilled in the art better understand technical scheme of the present invention, the present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Please referring to Fig. 4, Fig. 4 is the structural representation of a kind of specific embodiment of running driving device provided by the present invention.
As shown in Figure 4, running driving device provided by the invention comprises driving engine 1, Hydraulic Pump 2, HM Hydraulic Motor 3, speed changing bridge tandem-driving bogie assembly 4 and drive wheel 5.The clutch end of driving engine 1 links to each other with the power intake of Hydraulic Pump 2, and particularly, the clutch end of driving engine 1 can directly be connected with the power intake of Hydraulic Pump 2, also can be connected by the power intake of coupler with Hydraulic Pump 2; The oil outlet of Hydraulic Pump 2 is communicated with the oil inlet of HM Hydraulic Motor 3, and the clutch end of HM Hydraulic Motor 3 links to each other with the power intake of speed changing bridge tandem-driving bogie assembly 4, and the clutch end of speed changing bridge tandem-driving bogie assembly 4 links to each other with drive wheel 5; Wherein the speed changing bridge tandem-driving bogie integrates speed reduction gearing, transmission shaft, diff, back axle, tandem-driving bogie.
The running driving device of this structure, driving engine 1 drives Hydraulic Pump 2 work, change mechanical energy into hydraulic energy, Hydraulic Pump 2 drives HM Hydraulic Motor 3 rotations, change hydraulic energy into mechanical energy and pass to speed changing bridge tandem-driving bogie assembly 4, the mechanical energy of 4 pairs of inputs of speed changing bridge tandem-driving bogie assembly is carried out reduction of speed and is increased and transmission of power is driven it to drive wheel 5 after turning round and travel.
The discharge capacity of step-less adjustment Hydraulic Pump 2 and HM Hydraulic Motor 3 can realize the infinite speed variation of running driving device, and the operating range of Hydraulic Pump 2 and HM Hydraulic Motor 3 is mated in efficient district, so that road grader keeps higher driving efficiency in vehicle speed range.
When outer load is larger, automatically tune up the discharge capacity of HM Hydraulic Motor 3, or increase the reduction ratio of the speed reduction gearing in the speed changing bridge tandem-driving bogie assembly 4, improve its output torque, reduce the speed of a motor vehicle; When outer load hour, then automatically turn the discharge capacity and the reduction ratio that reduces the speed reduction gearing in the speed changing bridge tandem-driving bogie assembly 4 of HM Hydraulic Motor 3 down, improve the speed of a motor vehicle, give full play to the power of driving engine 1, realize the adaptation function of external load, make horsepower output and the outer load Proper Match of driving engine 1, improve the work efficiency of driving system, avoid chaufeur to need the frequent gear according to outer load variations, alleviated the labour intensity of chaufeur, improved operating efficiency.
Change the gear of speed reduction gearing in the speed changing bridge tandem-driving bogie assembly 4, the reduction ratio that namely changes speed reduction gearing can be realized the switching of the high low speed of running driving device, has enlarged the speed adjustable range of running driving device; Differential when the diff in the speed changing bridge tandem-driving bogie assembly 4 can be realized turning travels and the synchronization job during straight-line travelling, makes left and right sides drive wheel 5 have preferably net synchronization capability.
In the preferred scheme, as shown in Figure 5, speed changing bridge tandem-driving bogie assembly 4 comprises power input shaft 41, clutch equipment, the first transmission shaft 45, diff 46, semiaxis 47, speed reduction gearing 48, tandem-driving bogie, power input shaft 41 is connected with the power intake of clutch equipment by gear, the clutch end of described clutch equipment is connected with the first transmission shaft 45 by gear, the first transmission shaft 45 is connected by the power intake of gear with diff 46, the clutch end of described diff 46 is connected with the power intake of described speed reduction gearing 48, the clutch end of described speed reduction gearing 48 links to each other with the power intake of tandem-driving bogie, and the clutch end of described tandem-driving bogie links to each other with drive wheel 5.
In the concrete scheme, clutch equipment comprises low gear power-transfer clutch 42, high speed gear power-transfer clutch 43 and clutch shaft 44.
HM Hydraulic Motor 3 with transmission of power to power input shaft 41, power input shaft 41 by gear with transmission of power to low gear power-transfer clutch 42 or high speed gear power-transfer clutch 43, when two power-transfer clutchs all not in conjunction with the time, running driving device is in neutral position state, when one of them power-transfer clutch in conjunction with the time, power is given the first transmission shaft 45 and diff 46 through clutch shaft 44 by gear transmission, diff 46 with power respectively through about two semiaxis 47 pass to successively speed reduction gearing 48, tandem-driving bogie, drive wheel 5.
The running driving device of this structure, speed reduction gearing 48, transmission shaft, diff 46, back axle, tandem-driving bogie are integrated in one, form speed changing bridge tandem-driving bogie assembly 4, reduced driver element, improved the driving efficiency of driving system, greatly dwindled the space of driving system, so that transmission device is compacter, cost is lower.
In the concrete scheme, tandem-driving bogie comprises sprocket shaft 49, chain 410, axletree 411, sprocket shaft 49 is connected with the clutch end of speed reduction gearing 48, chain 410 is connection chain wheel shaft 49, axletree 411 respectively, axletree 411 connects the wheel hub 51 of drive wheel 5, and the power of speed reduction gearing 48 outputs is passed to the wheel hub 51 of drive wheel 5 through sprocket shaft 49, chain 410, axletree 411, under the effect of this power, drive wheel 5 will rotate, thereby realize the normal operation of drive wheel 5.
In the concrete scheme, speed reduction gearing 48 is planetary gear speed reducing mechanism, and planetary gear speed reducing mechanism has the advantages such as reduction ratio is large, compact conformation, can increase the speed adjustable range of running driving device, dwindles the shared space of driving system.
In the preferred version, described diff 46 is mechanical differential gear box, in the more excellent scheme, diff 46 can be the No-spin diff, the No-spin diff has preferably antiskid capability, differential in the time of can realizing turning travels and the synchronization job during straight-line travelling, can effectively prevent road grader one-sided phenomenon of skidding in construction.
In the preferred scheme, at described the first transmission shaft 45 parking brake 412 is installed.
In above-described embodiment, the quantity of HM Hydraulic Motor 3 is one, is appreciated that the present invention is not limited thereto, and the quantity of HM Hydraulic Motor can be two or more, all should be in protection scope of the present invention.
In above-described embodiment, clutch equipment comprises low gear power-transfer clutch and two gears of high speed gear power-transfer clutch, and the present invention is not limited thereto, and clutch equipment can comprise a plurality of gears, and the present invention does not limit this.
In above-described embodiment; speed reduction gearing is planetary gear speed reducing mechanism; running driving device provided by the invention is not limited to this; transmission gear can also can be helical teeth for straight-tooth; step of reduction can arrange arbitrarily as required; type of belt drive can also can be chain gear for gear transmission; all speed reduction gearings with deceleration all should be in protection scope of the present invention; such as straight gear speed reduction gearing etc.; following examples are introduced running driving device provided by the invention take speed changing bridge tandem-driving bogie assembly with straight gear speed reduction gearing as example.
Please referring to Fig. 6, Fig. 6 is the structural representation of the another kind of concrete structure of speed changing bridge tandem-driving bogie assembly among Fig. 4.
As shown in Figure 6, this speed changing bridge tandem-driving bogie assembly comprises power input shaft 41 ', clutch equipment, the first transmission shaft 45 ', diff 48 ', semiaxis 410 ', straight gear speed reduction gearing 49 ', tandem-driving bogie, power input shaft 41 ' is connected with the power intake of clutch equipment by gear, the clutch end of described clutch equipment is connected with the first transmission shaft 45 ' by gear, the first transmission shaft 45 ' is provided with parking brake 46 ', the first transmission shaft 45 ' is connected with the power intake of diff 48 ' by gear, the clutch end of described diff 48 ' is connected with the power intake of straight gear speed reduction gearing 49 ' by second driving shaft 47 ', the clutch end of described straight gear speed reduction gearing 49 ' links to each other with the power intake of tandem-driving bogie, and the clutch end of described tandem-driving bogie links to each other with drive wheel.
Above-mentioned clutch equipment specifically comprises low gear power-transfer clutch 42 ', high speed gear power-transfer clutch 43 ' and clutch shaft 44 '.
All the other specific embodiment are similar to the above embodiments, no longer are described in detail at this.
The present invention also provides a kind of road grader, this road grader comprises above-mentioned running driving device, because above-mentioned running driving device has above-mentioned technique effect, the road grader with this running driving device also should have corresponding technique effect, no longer is described in detail at this.
The above only is the description of the preferred implementation of invention; should be understood that; because the finiteness of literal expression; and objectively have unlimited concrete structure; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. running driving device, comprise driving engine (1), Hydraulic Pump (2), HM Hydraulic Motor (3), drive wheel (5), it is characterized in that, also comprise speed changing bridge tandem-driving bogie assembly (4), the power intake of described speed changing bridge tandem-driving bogie assembly (4) links to each other with the clutch end of described HM Hydraulic Motor (3), and the clutch end of described speed changing bridge tandem-driving bogie assembly (4) links to each other with described drive wheel (5);
Described speed changing bridge tandem-driving bogie assembly (4) comprises power input shaft (41), clutch equipment, the first transmission shaft (45), diff (46), semiaxis (47), speed reduction gearing (48), tandem-driving bogie, described power input shaft (41) is connected with the power intake of clutch equipment by gear, the clutch end of described clutch equipment is connected with described the first transmission shaft (45) by gear, described the first transmission shaft (45) is connected by the power intake of gear with described diff (46), the clutch end of described diff (46) is connected with the power intake of described speed reduction gearing (48) by semiaxis (47), the clutch end of described speed reduction gearing (48) links to each other with the power intake of tandem-driving bogie, and the clutch end of described tandem-driving bogie links to each other with drive wheel (5);
Clutch equipment comprises low gear power-transfer clutch (42), high speed gear power-transfer clutch (43) and clutch shaft (44);
HM Hydraulic Motor (3) with transmission of power to power input shaft (41), power input shaft (41) by gear with transmission of power to low gear power-transfer clutch (42) or high speed gear power-transfer clutch (43), when two power-transfer clutchs all not in conjunction with the time, running driving device is in neutral position state, when one of them power-transfer clutch in conjunction with the time, power is given the first transmission shaft (45) and diff (46) through clutch shaft (44) by gear transmission.
2. running driving device according to claim 1 is characterized in that, described speed reduction gearing (48) is planetary gear speed reducing mechanism.
3. running driving device according to claim 1 is characterized in that, described speed reduction gearing (48) is the straight gear speed reduction gearing.
4. each described running driving device is characterized in that according to claim 1-3, on described the first transmission shaft (45) parking brake is installed.
5. running driving device according to claim 1, it is characterized in that, described tandem-driving bogie comprises chain (410), axletree (411), reaches sprocket shaft (49), described sprocket shaft (49) connects the clutch end of described speed reduction gearing (48), described chain (410) connects respectively described axletree (411), described sprocket shaft (49), and described axletree (411) connects the wheel hub (51) of described drive wheel (5).
6. running driving device according to claim 1 is characterized in that, described diff (46) is mechanical differential gear box.
7. running driving device according to claim 1 is characterized in that, establishes reversing arrangement on the oil circuit between described Hydraulic Pump (2) and the described HM Hydraulic Motor (3).
8. a road grader is characterized in that, this Leveling implements each described running driving device of requirement 1-7 of having the right.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010276980 CN101934727B (en) | 2010-09-07 | 2010-09-07 | Running drive device and road grader |
| PCT/CN2011/076097 WO2012031496A1 (en) | 2010-09-07 | 2011-06-22 | Driving device and grader using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010276980 CN101934727B (en) | 2010-09-07 | 2010-09-07 | Running drive device and road grader |
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| Publication Number | Publication Date |
|---|---|
| CN101934727A CN101934727A (en) | 2011-01-05 |
| CN101934727B true CN101934727B (en) | 2013-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010276980 Active CN101934727B (en) | 2010-09-07 | 2010-09-07 | Running drive device and road grader |
Country Status (2)
| Country | Link |
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| CN (1) | CN101934727B (en) |
| WO (1) | WO2012031496A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101934727B (en) * | 2010-09-07 | 2013-01-02 | 三一重工股份有限公司 | Running drive device and road grader |
| CN102152737A (en) * | 2011-03-24 | 2011-08-17 | 同济大学 | Hydraulic or electric drive-based drive system for parallel shaft-type main drive device |
| CN102806921A (en) * | 2012-08-08 | 2012-12-05 | 巢湖华晨防爆动力机械制造有限公司 | Mining explosion-proof diesel steel wheel locomotive transmission system with planetary speed reducer |
| CN102815307A (en) * | 2012-08-08 | 2012-12-12 | 巢湖华晨防爆动力机械制造有限公司 | Mining anti-explosion diesel steel-wheel locomotive with drive system containing planet reducer |
| CN103758976A (en) * | 2014-01-08 | 2014-04-30 | 湖南三一路面机械有限公司 | Power transmission system and grader |
| CN103863107B (en) * | 2014-03-12 | 2018-04-27 | 长安大学 | A kind of high-power land leveller list bridge fluid pressure drive device |
| CN105522915A (en) * | 2014-10-23 | 2016-04-27 | 保定市科奇电子科技开发有限公司 | Liftable differential driving mechanism |
| CN110239341A (en) * | 2019-06-27 | 2019-09-17 | 山推工程机械股份有限公司 | A kind of transmission system and engineering truck |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4104283A1 (en) * | 1990-02-15 | 1991-08-22 | Zahnradfabrik Friedrichshafen | Multipurpose vehicle for building site - has hydraulic transmission system which drives both axles |
| CN1405412A (en) * | 2001-09-14 | 2003-03-26 | 三一重工股份有限公司 | Hydrostatic drive land leveller |
| CN201258500Y (en) * | 2008-05-26 | 2009-06-17 | 徐州徐工筑路机械有限公司 | H-shaped dual spindle shifting operating handle for leveler |
| CN201420276Y (en) * | 2009-04-30 | 2010-03-10 | 徐州美驰车桥有限公司 | Driving axle for land leveller |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101934727B (en) * | 2010-09-07 | 2013-01-02 | 三一重工股份有限公司 | Running drive device and road grader |
-
2010
- 2010-09-07 CN CN 201010276980 patent/CN101934727B/en active Active
-
2011
- 2011-06-22 WO PCT/CN2011/076097 patent/WO2012031496A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4104283A1 (en) * | 1990-02-15 | 1991-08-22 | Zahnradfabrik Friedrichshafen | Multipurpose vehicle for building site - has hydraulic transmission system which drives both axles |
| CN1405412A (en) * | 2001-09-14 | 2003-03-26 | 三一重工股份有限公司 | Hydrostatic drive land leveller |
| CN201258500Y (en) * | 2008-05-26 | 2009-06-17 | 徐州徐工筑路机械有限公司 | H-shaped dual spindle shifting operating handle for leveler |
| CN201420276Y (en) * | 2009-04-30 | 2010-03-10 | 徐州美驰车桥有限公司 | Driving axle for land leveller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101934727A (en) | 2011-01-05 |
| WO2012031496A1 (en) | 2012-03-15 |
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