CN2665221Y - Full-hydraulic bulldozer transmission arrangement - Google Patents
Full-hydraulic bulldozer transmission arrangement Download PDFInfo
- Publication number
- CN2665221Y CN2665221Y CN 200320113979 CN200320113979U CN2665221Y CN 2665221 Y CN2665221 Y CN 2665221Y CN 200320113979 CN200320113979 CN 200320113979 CN 200320113979 U CN200320113979 U CN 200320113979U CN 2665221 Y CN2665221 Y CN 2665221Y
- Authority
- CN
- China
- Prior art keywords
- gear
- diesel engine
- motors
- bulldozer
- transfer case
- 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.)
- Expired - Fee Related
Links
Abstract
Disclosed is a gearing device for a full hydraulic bulldozer, comprising a diesel engine, two variable pumps, two motors, two arresters and two final reducers. The output shafts of the motors are connected with the input gear shafts on the final reducers; the arresters are fixed on the shafts which are provided with gears meshed with the input gears. The utility model is characterized in that a transfer case is arranged between the diesel engine and the variable pumps; one end of the transfer case is connected with the flywheel casing of the diesel engine and the other end is connected with the two variable pumps. The two variable pumps are electrical proportional pumps and the motors are electrical proportional motors. The final reducers of the utility model consist of three couples of gears that are meshed with each other, wherein the two ends of the input gear are provided with input shaft bearings which are directly connected with the motors; the sides of the final reducers are provided with chain wheels which can output the power. Since the utility model is provided with a transfer case, the suspension length of the variable pumps can be reduced, thus reducing the possibility of leakage of the hydraulic system, saving installation space and further increasing the maintenance possibility of the bulldozer. Therefore the towing efficiency and the comprehensive efficiency of the bulldozer are greatly improved.
Description
Technical field:
The utility model relates to construction implement, is specifically related to the improvement of transmission device on a kind of bulldozer.
Background technology:
Traditional bulldozer is the hydraulic mechanical type bulldozer, its power transmission route be diesel engine through torque-converters, gearbox, universal joint, central transmission, steering cluth, whole reducer to sprocket wheel.Gear by gearbox changes the speed of bulldozer, changes travel direction by steering cluth, and its powerdriven route is long, the running part complex structure, the manufacturing cost height, take up room big, the maintenance inconvenience.The domestic full hydraulic bulldozer power transmission route of having developed is that diesel engine, hydraulic control variable pump, fluid pressure line, hydraulic control variable displacement motor, whole reducer are to sprocket wheel at present, its structure is simple than the hydraulic mechanical type bulldozer, but still have that engine noise is big, oil consumption is high, the easy oil leakage of walking oil pump, hydraulic system efficient are low, reducer bearing fault rate height, defectives such as grating of gears is big, functional reliability is low, maintainability difference.
The utility model content:
Technical problem to be solved in the utility model is the defective that overcomes above-mentioned prior art, provides a kind of reasonable in design, simple in structure, synthetic job efficient height, full hydraulic bulldozer transmission device easy to maintenance.
The utility model is to solve the problems of the technologies described above by following technical scheme.Comprise diesel engine, two variable pumps, two motors, two brakes and two whole reducers, the axle of input gear is connected on described motor output shaft and the whole reducer, brake be fixed on be equipped with the axle of importing the gear that gear is meshed on, it is characterized in that being provided with transfer case between described diesel engine and the variable pump, this transfer case one end and diesel engine bell housing join, and two variable pumps are connected to its other end.Described variable pump adopts electric proportioning pump, and motor adopts electric ratiomotor.The whole reducer of the utility model is meshing with each other by three pairs of gears and forms, wherein import the gear both ends of the surface bearing of input shaft is housed, directly join with motor, brake is loaded on gear one end that gear is meshed with the input gear, the extreme gear side is equipped with sprocket wheel, can output power.
The utility model can reduce variable pump and hang length by transfer case is set, and has reduced the possibility of hydraulic system leakage, has saved installing space, and the maintenanceability of bulldozer is further increased.In addition, oil consumption reduces 5-10% than existing bulldozer, and noise reduces the 5-8dB economy and also improves greatly; The reducer bearing improves application life greatly, and the mean free error time can be brought up to 20000 hours, can keep operate as normal in 3-4 overhaul phase; Bulldozer propulsive efficiency and synthetic job efficient improve greatly.
Description of drawings:
Fig. 1 is the utility model structural representation.
Among the figure:
1-diesel engine 2-transfer case 3-electricity proportional variable pump
4-fluid pressure line 5-electricity ratiomotor 6-bearing of input shaft
7-gear 8-gear 9-brake
10-gear 11-gear 12-gear
The whole reducer of 13-gear 14-sprocket wheel 15-
The specific embodiment:
As shown in Figure 1, the utility model is the improvement of being done on existing bulldozer.It comprises diesel engine 1, two variable pumps 3, two motors 5, two brakes 9 and two whole reducers 15, be connected with fluid pressure line 4 between each variable pump 3 and the motor 5, the axle of input gear 7 directly joins on motor 5 output shafts and the whole reducer 15, and brake 9 is fixed on the axle that the gear 8 that is meshed with gear 7 is installed.Because two variable pumps 3 are to be connected in series mutually in the prior art, therefore, the back boom that joins between variable pump 3 and diesel engine 1 bell housing is longer, vibration is bigger during work, each joint is loosening easily under its influence in the fluid pressure line 4, can produce leakage phenomenon, can cause bigger noise simultaneously.The utility model is provided with transfer case 2 for suspension moment of flexure that reduces diesel engine 1 bell housing and the reliability that improves each variable pump 3 work in the bell housing back, and these transfer case 2 one ends and diesel engine 1 bell housing join, and two variable pumps 3 are connected to its other end.This structure can reduce the suspension length of variable pump 3, has saved installing space, and the maintenanceability of bulldozer is further increased.
The utility model is keeping under the constant situation of diesel engine rated power, reduce diesel engine 1 rated speed, combustion noise, mechanical noise, fan noise that makes diesel engine 1 etc. declines to a great extent, and the power of annex consumption such as fan also descends, and has increased engine net power.Because the decline of diesel engine 1 rated speed has improved reliability and application life that diesel engine 1 is worked.Variable pump 2 adopts electric proportioning pump simultaneously, motor 5 adopts electric ratiomotor, and significantly increase the discharge capacity of motor 5, the motor of big discharge capacity can make the speed rigidity (anti-load-bearing capacity) of bulldozer increase greatly, the rotating speed of the hydraulic travel system output of configuration and the efficient district wide ranges of moment of torsion increase the propulsive efficiency of bulldozer.Latus rectum with fluid pressure line strengthens simultaneously, and pipeline length reduces.Greatly reduce the power loss of pipeline like this, also reduced the hydraulic system temperature, prolonged the life-span of running gear, can improve the efficient of hydraulic system.The overstriking of inlet line is eliminated slippage pump cavitation pitting phenomenon, has prolonged the application life of slippage pump, and the hydraulic system cleannes are effectively guaranteed.The hydraulic control circuit latus rectum strengthens, and can reduce the fluctuation of controlled pressure, reduces return oil pressure.
As shown in the figure, the whole reducer 15 of the utility model is by gear 7 and gear 8, gear 10 and gear 11, gear 12 and gear 13 constitute three grades of spur gear kinds of drive, its middle gear 7 both ends of the surface are equipped with bearing of input shaft 6, directly join with 5 upper splines of motor, be meshed with gear 8 simultaneously, brake 9 is loaded on gear 8 one ends, gear 10 is loaded on the other end, and be meshed with gear 11, gear 13 is an extreme gear, its side is equipped with sprocket wheel 14, and be meshed with gear 12, gear 11 is loaded on the same axle with gear 12, and power is carried out parking braking by brake 9 by sprocket wheel 14 outputs during parking.The utility model calculates through rational general arrangement and coupling, gear 7 and gear 8 meshing gear transverse contact ratios are increased, reduce motor 5 input speeds simultaneously, each gear tooth noise significantly reduces in the whole reducer 15, and the design service life of bearing improves greatly.
Claims (3)
1, a kind of full hydraulic bulldozer transmission device, comprise diesel engine (1), two variable pumps (3), two motors (5), two brakes (9) and two whole reducers (15), motor (5) output shaft is connected with the axle that whole reducer (15) is gone up input gear (7), brake (9) is fixed on the axle that the gear (8) that is meshed with gear (7) is installed, it is characterized in that being provided with transfer case (2) between described diesel engine (1) and the variable pump (3), these transfer case (2) one ends and diesel engine (1) bell housing join, and two variable pumps (3) are connected to its other end.
2, full hydraulic bulldozer transmission device according to claim 1 is characterized in that variable pump (2) adopts electric proportioning pump, and motor (5) adopts electric ratiomotor.
3, full hydraulic bulldozer transmission device according to claim 1, it is characterized in that whole reducer (15) is by gear (7) and gear (8), gear (10) and gear (11), gear (12) and gear (13) composition that is meshing with each other, its middle gear (7) both ends of the surface are equipped with bearing of input shaft (6), directly join with motor (5), brake (9) is loaded on gear (8) one ends, gear (10) is loaded on the other end, and be meshed with gear (11), gear (13) side is equipped with sprocket wheel (14), be meshed with gear (12), gear (11) is loaded on the same axle with gear (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320113979 CN2665221Y (en) | 2003-10-28 | 2003-10-28 | Full-hydraulic bulldozer transmission arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320113979 CN2665221Y (en) | 2003-10-28 | 2003-10-28 | Full-hydraulic bulldozer transmission arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2665221Y true CN2665221Y (en) | 2004-12-22 |
Family
ID=34345170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320113979 Expired - Fee Related CN2665221Y (en) | 2003-10-28 | 2003-10-28 | Full-hydraulic bulldozer transmission arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2665221Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493511A (en) * | 2011-12-15 | 2012-06-13 | 山推工程机械股份有限公司 | Full hydraulic bulldozer, and drive control system and drive control method for full hydraulic bulldozer |
| CN102505718A (en) * | 2011-11-22 | 2012-06-20 | 潍柴动力股份有限公司 | Bulldozer and torque smooth control system thereof |
-
2003
- 2003-10-28 CN CN 200320113979 patent/CN2665221Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102505718A (en) * | 2011-11-22 | 2012-06-20 | 潍柴动力股份有限公司 | Bulldozer and torque smooth control system thereof |
| CN102493511A (en) * | 2011-12-15 | 2012-06-13 | 山推工程机械股份有限公司 | Full hydraulic bulldozer, and drive control system and drive control method for full hydraulic bulldozer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112519504A (en) | Electric drive axle with double motors and double-speed parallel shafts | |
| CN2665221Y (en) | Full-hydraulic bulldozer transmission arrangement | |
| CN202326833U (en) | Parallel hydraulic retarder for adjusting speed ratio through gear meshing | |
| CN112477570B (en) | Drive synthesis device and electric vehicle | |
| CN2886221Y (en) | Hydrodynamic drive transmission for fixed-axis wheel series of automobile | |
| CN204647172U (en) | A kind of seven grades of single case three countershaft transmissions | |
| CN1927615A (en) | Novel force utilizing device for special automobile working device | |
| CN207470381U (en) | A kind of combination bull high-pressure pump | |
| CN219013303U (en) | Four-gear automatic speed changing bridge for electric automobile | |
| CN101046240A (en) | Planetary speed reducer specially for continuous casting | |
| CN2665223Y (en) | Full-hydraulic bulldozer propulsion plant | |
| CN101655150B (en) | Manual/automatic gearbox for mutually floating gear | |
| CN201351719Y (en) | Manual automatic transmission with mutually floating gears | |
| CN200958555Y (en) | Reducing box | |
| CN2730925Y (en) | Transmission device for hydraulic driven road roller | |
| CN101761624B (en) | Compound toothed chain stepless speed change concurrent starter | |
| CN2709709Y (en) | Power output box of double-box double-vortex hydraulic displacement apparatus | |
| CN110296185A (en) | A kind of heavy-duty power transmission | |
| CN219315865U (en) | Loader double-motor driving system with upper part | |
| CN218761169U (en) | Four-gear automatic speed changing bridge for electric automobile | |
| CN212672335U (en) | Structure-updated three-in three-out gear engineering mechanical gearbox | |
| CN201132970Y (en) | Gearing device of hydraulic driving earth leveller | |
| CN219139736U (en) | Stepless speed change harvester gearbox | |
| CN2743426Y (en) | Land scraper running driving device | |
| CN2584949Y (en) | Deaxial type single-level radial turbo-hydraulic variable-spacing apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041222 Termination date: 20111028 |