CN102152737A - Hydraulic or electric drive-based drive system for parallel shaft-type main drive device - Google Patents
Hydraulic or electric drive-based drive system for parallel shaft-type main drive device Download PDFInfo
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- CN102152737A CN102152737A CN2011100713984A CN201110071398A CN102152737A CN 102152737 A CN102152737 A CN 102152737A CN 2011100713984 A CN2011100713984 A CN 2011100713984A CN 201110071398 A CN201110071398 A CN 201110071398A CN 102152737 A CN102152737 A CN 102152737A
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Abstract
The invention relates to a hydraulic or electric drive-based drive system for a parallel shaft-type main drive device, which comprises an engine, a main drive device, a hydraulic pump, hydraulic motors, a half shaft and the like, wherein axes of an input shaft and an output shaft of the main drive device are arranged in parallel, the hydraulic motors connected with the input shaft of the main drive device and the input shaft are connected with the axes. The power transfer process is as follows: power is transferred from the hydraulic motors to the input shaft of the main drive device, and is then output from the output shaft connected with a gearwheel after a pinion on the input shaft is engaged with the gearwheel. The input shaft of the parallel shaft-type main drive device provided by the invention is parallel to the output shaft of the same, the hydraulic motors which are coaxial with the input shaft and the input shaft constitute an integrated device, thus installation and arrangement around the space of the output shaft from 0 degree to 180 degrees can be realized. Two hydraulic motors and the input shaft of the main drive device, or a plurality of hydraulic motors and a plurality of input shafts of the main driven device generate diversified variation forms of the main drive device, such as single-input and single-output, multi-input and multi-output and the like, so that higher power can be transferred.
Description
Technical field
The present invention relates to the walking driving system of construction machinery and equipment, engineering truck, the driving system of concrete is a kind of parallel-axis type main drive based on hydraulic pressure or electric tramsmission.
Background technology
In the mechanical type or hydraulic mechanical type walking driving system of present construction machinery and equipment, engineering truck, engine power is delivered to the driving system of engineering truck drive wheel normally by driving engine-master clutch (tor-con), and--change speed gear box------diff is formed main drive, may also have coupler, power-transfer clutch, universal-joint, transmission shaft, chain etc. to connect between each device or adopts direct connection such as spline by semiaxis--(hub reduction device)--two side drive wheel (tire or track sprocket).Main drive wherein, mostly by a pair of bevel-type gear (spiral bevel and skew bevel wheel etc.) single reduction gear of forming or the multi-stage speed reducer of forming by bevel-gear pair and cylindrical gear pair, power input shaft becomes to be arranged vertically with output shaft (semiaxis), be that main drive carries out 90 ° of changes with the transmission of power direction, realize the function of deceleration (increase and turn round) simultaneously.Main gear adopts vertically arranged mode, be because the driving engine--master clutch (tor-con)--of main drive input end the transmission axis of change speed gear box etc. is a rigidity, and scantling of structure is relatively large, should import axis with main gear and carry out the parallel layout of coaxial line or axis coplane or axis;--semiaxis--(hub reduction device)--two side drive wheel (tire or track sprocket) that the takeoff output of main drive is through diff.The output gear axle center line of main drive and diff, semiaxis, (hub reduction device), two side drive wheel (tire or track sprocket) form coaxial line usually, and axis also is that (the hub reduction device makes that outer cylinder gear slows down or with the linked transmission transferring power during to drive wheel to rigidity, form the parallel form of drive wheel and semiaxis axial line, and axial line also is a rigidity).Therefore, realize that with main drive slow down the simultaneously mechanical type of (increase and turn round) or hydraulic mechanical type walking driving system of 90 ° of transformations of transmission of power (also can be called the perpendicular axis type transmission) becomes the most classical driving system such as construction machinery and equipment, engineering truck, obtain using very widely, main drive also becomes in the walking driving system one of device of core the most.
Along with the development of hydrostatic drive and electric tramsmission technology,--electric actuator that electrical generator--(controller)--motor is formed begins to be widely used in the walking driving system of construction machinery and equipment, engineering truck for hydraulic actuator that employing Hydraulic Pump and HM Hydraulic Motor are formed and employing driving engine.Common application mode is to replace with hydraulic actuator or electric actuator on version that drive disk assembly (master clutch (tor-con), change speed gear box etc.) or the part between the driving engine and main drive replaces (keeping simple two grades or three class gear shift case apparatus) in mechanical type or the hydraulic mechanical type walking driving system, main drive and remain unchanged to the driving device between the drive wheel.
Can notice: when driving medium-fluid in the hydrostatic drive and the electric current in the electric tramsmission are used for transferring power, be not to be subjected to the direction restriction.Realize that the pipeline (hydralic hose) of liquid dielectric motion and the cable of electric current motion also have flexible preferably.This just makes hydraulic actuator or electric actuator there is no need to carry out strict axis arranged as mechanical transmission.The alerting ability that hydraulic actuator-HM Hydraulic Motor in the hydraulic actuator or the motor in the electric actuator are arranged in the locus of machine just displays well.
Main drive based on the motor in HM Hydraulic Motor in the hydraulic efficiency pressure system or the electric drive system can be designed as: HM Hydraulic Motor or electrical axis line are arranged to replace the novel type of belt drive of the bevel-type gear pair of axes intersect with the cylindrical gear pair of semiaxis axis parallel, usefulness parallel axes.Promptly just finished the function that 90 ° of power of bevel-type gear pair change naturally with the arrangement of HM Hydraulic Motor axial line or electrical axis line and semiaxis axis parallel, cylindrical gear pair had both been realized the parallel of main gear input axis and semiaxis axis, guaranteed the transmission of power, realize deceleration (increase and the turn round) function (note: all transmission devices behind the main drive keep former mechanical drive mode) of original main drive again, this driving device is called the parallel-axis type main drive.
HM Hydraulic Motor axle or motor shaft are parallel to the semiaxis axial line and arrange, be to have made full use of the characteristic of driving medium in hydrostatic drive or the electric tramsmission and system had thus arrangements of elements alerting ability, realized that naturally bevel-type gear main drive carries out the purpose that 90 ° of power directions change; When realizing slowing down (increase and turn round) function, also reduced manufacturing cost significantly, improved eases of use such as installation, debugging with cylindrical gear pair.
Hydraulic actuator or electric actuator have many difference naturally from version, what emphasize here is that the arrangement of motor can be identical with HM Hydraulic Motor, so propose HM Hydraulic Motor and motor in the follow-up content no longer simultaneously, the HM Hydraulic Motor of mentioning all can substitute with the motor in the electric actuator, certainly, hydraulic actuator must be replaced by electric actuator, and hydraulic tubing etc. also must adopt corresponding cable etc.
Summary of the invention
The objective of the invention is to use hydraulic pressure () transmission and have flexible transmission, the characteristics of big alerting ability be installed at spatial destribution, proposes a kind of simply and the low driving system of cost based on the parallel-axis type main drive of hydraulic pressure or electric tramsmission.
The driving system that the present invention proposes based on the parallel-axis type main drive that is used for rubber-tyred machinery of hydraulic pressure or electric tramsmission, form by driving engine 1, main drive 4, Hydraulic Pump 16, HM Hydraulic Motor 17, diff 8, semiaxis 9, hub reduction device 10 and tire 11, main drive 4 is made up of input shaft 5, active cylindrical wheel 18 and driven cylindrical gear 19, initiatively cylindrical wheel 18 and driven cylindrical gear 19 adopt external toothing, initiatively cylindrical wheel 18 is installed on the input shaft 5, and driven cylindrical gear 19 is fixed on the diff 8; The output shaft of driving engine 1 connects Hydraulic Pump 16, Hydraulic Pump 16 connects HM Hydraulic Motor 17, and 17 of HM Hydraulic Motor are connected with input shaft 5 coaxial inner conductors, and semiaxis 9 is two, lay respectively at diff 8 and arranged on left and right sides, and two semiaxis 9 axial lines and input shaft 5 axis parallels; Two hub reduction devices 10 connect two semiaxis 9 respectively, tire 11 fifth wheel limit speed reduction gearings 10.
The driving system that the present invention proposes based on the parallel-axis type main drive that is used for caterpillar machinery of hydraulic pressure or electric tramsmission, form by driving engine 1, main drive 4, Hydraulic Pump 16, HM Hydraulic Motor 17, central driving shaft 12, steering clutch 13, whole driving system 14 and crawler belt sprocket wheel 15, main drive 4 is made up of input shaft 5, active cylindrical wheel 18 and driven cylindrical gear 19, initiatively cylindrical wheel 18 and driven cylindrical gear 19 adopt external toothing, initiatively cylindrical wheel 18 is installed on the input shaft 5, and driven cylindrical gear 19 is fixed on the central driving shaft 12; The output shaft of driving engine 1 connects Hydraulic Pump 16, Hydraulic Pump 16 connects HM Hydraulic Motor 17,17 of HM Hydraulic Motor are connected with input shaft 5 coaxial inner conductors, central driving shaft (12) two ends connect two steering clutchs (13) respectively, central driving shaft (12) axial line and input shaft (5) axis parallel, whole driving system (14) connects steering clutch (13), and crawler belt sprocket wheel (15) connects whole driving system (14).
Among the present invention, described Hydraulic Pump 16 adopts bidirectional variable Hydraulic Pump 16 ', and HM Hydraulic Motor 17 adopts bidirectional variable HM Hydraulic Motor 17 '.
Among the present invention, described HM Hydraulic Motor 17 adopts constant displacement hydraulic motor 25.
Among the present invention, described motor 24 replaces HM Hydraulic Motor 17, and 24 in motor is connected with input shaft 5 coaxial inner conductors.
Among the present invention, output shaft axial line II, output shaft axial line III in the input shaft of described main drive (5) axial line, output shaft (9) axial line and the whole driving system (14) are parallel to each other.
Among the present invention, set up multistage cylindrical gear pair and main gear device tween drive shaft between the input shaft 5 of main drive and the semiaxis 9, the axial line of the axial line of main gear device tween drive shaft, the axial line of input shaft 5, semiaxis 9 is parallel to each other.
Among the present invention, 1 in driving engine connects and composes takeoff output axle center line with 16 coaxial inner conductors of Hydraulic Pump, and this axial line becomes arbitrarily angled layouts such as 90 °, 0 ° or 45 ° with semiaxis 9 axial lines.
Among the present invention, HM Hydraulic Motor 17 and 5 coaxial connections of main drive input shaft, the input module of formation can be around 0 ° of output shaft axial line--180 ° space mounting.
The input shaft of main drive and output shaft (the above multistage transmission of secondary also comprises tween drive shaft) axis parallel arranges that the transmission gear of installing on the axle (also comprising shaft gear) all adopts externally-engaged cylindrical gear; HM Hydraulic Motor that is connected with the main drive input shaft and input shaft become coaxial inner conductor to be connected (may be connected with change speed gear box between HM Hydraulic Motor and the input shaft, also keep being connected with the input shaft coaxial inner conductor).Power transmission process is: power is passed to the main drive input shaft by HM Hydraulic Motor (motor), through miniature gears (or shaft gear) on the input shaft and big gear wheel engagement (being generally deceleration), again from connecting the output shaft output of big gear wheel.
In the externally-engaged cylindrical gear parallel-axis type main drive that the present invention adopts, the input shaft of main drive adopts key such as spline to be connected with HM Hydraulic Motor axle (or motor shaft), or adopts coupler to connect, HM Hydraulic Motor maintenance and input shaft coaxial (axial line).Power transmission arrangment behind the output shaft then can be different according to the type of belt drive of different construction machinery and equipments, engineering truck.Usually for rubber-tyred machinery, output shaft is a left and right half, and driven cylindrical gear is fixed by bolts on the differential casing, and axle side gear and the planetary wheel constant-mesh that is enclosed within on the interior center cross of differential gear box axis hole.This moment, power was passed to differential casing by driven gear, was delivered to left and right half output by diff again.For caterpillar machinery, output shaft is a central driving shaft, and driven cylindrical gear is fixed by bolts on the central driving shaft, and the axle two ends are installed by key and connect dish, and this connects dish captives joint with the steering clutch dish that is coupling again, to the both sides outputting power.
Principle of the present invention can be expressed as: with the functional requirement of the perpendicular axis type main drive of classics, it is the function that transmission of power carries out 90 ° of directions changes and slow down (increase and turn round), by utilizing the characteristic of hydrostatic drive or electric tramsmission, be decomposed into: the input shaft crankshaft drive of HM Hydraulic Motor axle and main drive, input shaft and output shaft are arranged in parallel, and have realized that directly power (parallel) is passed to the purpose of output shaft (no longer needing to realize that with complicated bevel-type gear pair 90 ° of power directions change); Original deceleration (increase and turn round) function then can have the secondary realization of traditional externally-engaged cylindrical gear, and (input shaft of externally-engaged cylindrical gear transmission just in time is parallel with output shaft, input shaft also easily is connected with HM Hydraulic Motor is coaxial, and output shaft is identical with perpendicular axis type main drive output shaft function).
The transmitting ratio of parallel-axis type main drive (reduction ratio) can be regulated by reducing the driving gear number of teeth or increase the driven gear number of teeth (diameter) in theory.But owing in the spur gear drive mode, can produce " undercut " phenomenon when the gear number of teeth reduces to certain value, and also should not too increase the number of teeth (diameter) of driven gear (big gear wheel).So when a pair of final gear of impassabitity is adjusted to the transmitting ratio of suitable main drive, can also obtain suitable reduction ratio by the spur gear drive that adopts secondary or the multi-stage speed-reducing form more than the secondary.Promptly need be at input, configured in parallel tween drive shaft in the output shaft, between input shaft, tween drive shaft and the output shaft, the axial line keeping parallelism is equivalent to adopt the main drive of the externally-engaged cylindrical gear deceleration form more than secondary or the secondary to replace by the secondary main drive of forming of a pair of externally-engaged cylindrical gear.
In addition, the driving system that the parallel-axis type main drive constitutes, the input shaft of main drive is parallel with output shaft, the HM Hydraulic Motor coaxial with input shaft is connected with input shaft is coaxial, can think and constitute a cover integrated apparatus, can be around 0 ° of output shaft axial line--360 ° of installations (be can realize fully in theory, do not influence the function of main drive).If consider the vehicle ground Clearance problem of drive axle bottom, also can realize 0 °--180 ° space mounting, this makes the locus of parallel-axis type main drive arrange more flexible.
Further, because the parallel-axis type main drive can be realized 0 °--180 ° space mounting, therefore, input shaft can be for more than two or two, corresponding motor also can be (whether reach space structure as required limits) more than two or two, constitutes the form of distortion of the parallel-axis type main drive of many input shafts, single output shaft.In case of necessity, also can constitute the form of distortion of many input shafts, multi-output shaft.
With parallel-axis type main drive input shaft bonded assembly be HM Hydraulic Motor, HM Hydraulic Motor flexibly connects by hydraulic tubing and Hydraulic Pump.Usually, Hydraulic Pump and driving engine connect by coupler or auxiliary gear box, and the takeoff output axle center line of driving engine is coaxial with Hydraulic Pump or parallel, can think the axial line of same direction on the whole.Because the connecting line between Hydraulic Pump and the HM Hydraulic Motor has flexibility, therefore, driving engine both can be arranged vertically (identical with original mechanical type or hydraulic mechanical type walking type of belt drive) with the output shaft axial line of parallel-axis type main drive with the takeoff output axle center line that Hydraulic Pump constitutes, (0 °) also can be arranged in parallel, (90 ° of vertical still sides, side), certain angle of bevel layout etc., and do not need restriction (can be the optional position that machine allows in theory) on the position yet.Direction and position are not subjected to the condition of strict restriction, are very easy to the locus of driving engine (engine installation) on construction machinery and equipment, engineering truck yet and arrange.The layout explanation of electric actuator can be identical therewith.
With parallel-axis type main drive input shaft bonded assembly HM Hydraulic Motor, can be variable-dis-placement motor or fixed displacement motor; The quantity of HM Hydraulic Motor can be single, also can be two or more than; Also can increase devices such as change speed gear box between motor and the main drive input shaft.But these all need to guarantee the axial line of HM Hydraulic Motor axle and main drive input shaft axial line is concentric or axis parallel is arranged.
Beneficial effect of the present invention:
1, spur gear drive is simple in structure, and is little to the sensivity of width between centers, is easy to assembling and maintenance.
2, cylindrical gear pair is easier to fine limit work than the common low cost of manufacture of bevel-type gear pair.
3, because the least root cutting number of cylindrical wheel is bigger than bevel-type gear, the main drive transmitting ratio of homopolar bevel gear pair can corresponding reduction.But can wait by the size of redesign profile of tooth or increase driven gear and improve its transmitting ratio.When the transmitting ratio of main drive requires can also adopt the above cylindrical wheel auxiliary driving of secondary or secondary to increase transmitting ratio when bigger.
4, the input shaft of parallel-axis type main drive is parallel with output shaft, HM Hydraulic Motor and the input shaft coaxial with input shaft constitute integrated apparatus, can realize around 0 ° of output shaft--and 180 ° space mounting is arranged (the vehicle ground Clearance problem of considering the drive axle bottom).
5, the characteristics of utilizing power hydraulic system to have to flexibly connect, the locus of engine installation (driving engine etc.) on vehicle arranged more flexible.
6. the construction machinery and equipment, the engineering truck that have the parallel-axis type main drive will produce more flexibly, have the later-model version of multiple style, promote the development in pluralism of product.
Description of drawings
Fig. 1 is existing rubber-tyred machinery (hydraulic machine) drive system structure view.
Fig. 2 is existing caterpillar machinery (hydraulic machine) drive system structure view.
Fig. 3 is based on hydraulicdriven parallel-axis type main drive rubber-tyred drive system structure view.
Fig. 4 is based on hydraulicdriven parallel-axis type main drive crawler type drive system structure view.
Fig. 5 (a) is the parallel-axis type main drive based on two way variable displacement pump, double-action variable displacement motor power hydraulic system; Fig. 5 (b) is the parallel-axis type main drive based on electric tramsmission.
Fig. 6 (a) is a primary cylinder gear main gear device; Fig. 6 (b) is a secondary cylindrical wheel main gear device; Fig. 6 (c) is three grades of cylindrical wheel main gear devices.
Fig. 7 (a) and (b) are respectively HM Hydraulic Motor and coaxial connection of main gear device input shaft, front view and the birds-eye view installed around the space parallel of output shaft axial line; Fig. 7 (c) has the main drive of twin shaft double motor input.
Fig. 8 (a) and (b), (c) are respectively driving engine and become 90 °, 0 ° and 45 ° of layouts with the output shaft axial line of parallel-axis type main drive with the takeoff output axle center line that Hydraulic Pump constitutes.
Fig. 9 (a) is the parallel-axis type main gear device based on the fixed displacement motor transmission; Fig. 9 (b) is the parallel-axis type main gear device based on single input shaft duplex set.
Number in the figure:1 is driving engine, and 2 is master clutch (tor-con), and 3 is change speed gear box, 4 is main drive, and 5 is the main drive input shaft, and 6 is main gear device drive bevel gear, 7 is main gear device driven wheel of differential, and 8 is diff, and 9 is a left side, right axle shaft, 10 is the hub reduction device, 11 is tire, and 12 is central driving shaft, and 13 is steering clutch, 14 is whole driving system, 15 is the crawler belt sprocket wheel, and 16 is Hydraulic Pump, and 17 is HM Hydraulic Motor, 16 ' is the bidirectional variable Hydraulic Pump, 17 ' is the bidirectional variable HM Hydraulic Motor, and 18 is initiatively cylindrical wheel of parallel-axis type main gear device, and 19 is parallel-axis type main gear device driven cylindrical gear, 20,23 are respectively second stage main gear device tween drive shaft, third stage main gear device tween drive shaft, 21 is second stage cylindrical gear pair, 22 is third stage cylindrical gear pair, 24 is motor, and 25 is constant displacement hydraulic motor.
The specific embodiment
Also further specify the present invention in conjunction with the accompanying drawings below by example.
Fig. 1 is existing rubber-tyred machinery (hydraulic machine) drive system structure diagram.Driving engine 1 is connected with master clutch (hydraulic mechanical transmission system is a tor-con) 2, with transmission of power to change speed gear box 3, after connect main drive 4 and diff 8, main drive 4 is made up of main gear device input shaft 5, drive bevel gear 6 and driven wheel of differential 7, after changing 90 °, the transmission of power direction exports by semiaxis 9, last power slows down to increase through hub reduction device 10 and turns round, and tire on the drive wheels 11 travels.Wherein, the axial line that driving engine 1-master clutch 2-change speed gear box 3 constitutes and the coaxial or coplane of input shaft axial line of main drive 4, or conllinear have certain rigid.The axis parallel of output shaft axial line (semiaxis axial line) and hub reduction device also has certain rigid.Main drive input shaft axial line is vertical with output shaft axial line (semiaxis axial line).
Fig. 2 is existing caterpillar machinery (hydraulic machine) drive system structure diagram.Main drive 4 is made up of main drive input shaft 5, drive bevel gear 6 and driven wheel of differential 7, it is identical with rubber-tyred to connect drive disk assembly before the main drive 4, back relay part is a steering clutch 13, power is passed to final drive 14 by the connection of steering clutch 13 by central driving shaft 12, drive drive sprocket 15 at last and rotate, drive the walking of crawler belt.Wherein, the axial line that driving engine 1-master clutch 2-change speed gear box 3 constitutes and the coaxial or coplane of input shaft axial line of main drive 4, or conllinear have certain rigid.Output shaft axial line I is parallel with axial line II, axial line III in the final drive, is all rigidity.Main drive input shaft axial line is vertical with output shaft axial line (semiaxis axial line).
Fig. 3 is for the present invention is based on hydraulicdriven parallel-axis type main drive rubber-tyred drive system structure diagram.The power of driving engine 1 passes through volume adjustable hydraulic pump 16, variable hydraulic motor 17, active cylindrical wheel 18, driven cylindrical gear 19 successively, passes to semiaxis 9 through diff 8, by hub reduction device 10, and tire on the drive wheels 11 walkings.Wherein, main drive 4 is made up of active cylindrical wheel 18, driven cylindrical gear 19 and input shaft 5.Initiatively cylindrical wheel 18 is installed on the input shaft 5 by spline, and driven cylindrical gear 19 is fixed by bolts on diff 8 housings.HM Hydraulic Motor 17 is connected with input shaft 5 coaxial inner conductors, the output shaft axis parallel that the input shaft axial line of formation and left and right half 9 are formed.
Fig. 4 is for the present invention is based on hydraulicdriven parallel-axis type main drive crawler type drive system structure diagram.The power of driving engine 1 passes through volume adjustable hydraulic pump 16, variable hydraulic motor 17, active cylindrical wheel 18, driven cylindrical gear 19 successively, after central driving shaft 12 passes to steering clutch 13, drives crawler belt sprocket wheels 15 by whole driving system 14 and rotates.Wherein, main drive 4 is made up of active cylindrical wheel 18, driven cylindrical gear 19 and input shaft 5.Initiatively cylindrical wheel 18 is installed on the input shaft 5 by spline, and driven cylindrical gear 19 is fixed by bolts on the central driving shaft 12.17 of HM Hydraulic Motor are connected with 5 one-tenth coaxial inner conductors of input shaft, form the input shaft axial line.The output shaft axial line of main drive (central driving shaft axial line) I is parallel with output shaft axial line II, output shaft axial line III in the whole driving system among Fig. 4, and simultaneously input shaft axial line, output shaft axial line are also parallel.
Fig. 5 (a) adopts unidirectional Hydraulic Pump 16, the unidirectional HM Hydraulic Motor 17 in bidirectional variable Hydraulic Pump 16 ', bidirectional variable HM Hydraulic Motor 17 ' the substitute structure diagram 3,4.Fig. 5 (b) uses motor 24 to replace HM Hydraulic Motor 17 as power intake, is connected with input shaft 5 coaxial inner conductors of main drive, has promptly utilized the hydraulic actuator in the electric actuator substitute structure diagram 3,4.
Fig. 6 is single-stage and multistage cylindrical wheel main gear device.Fig. 6 (a) is a primary cylinder gear main gear device, initiatively cylindrical wheel 18, driven cylindrical gear 19 engagements, and main drive input shaft 5 is parallel with the semiaxis 9 as output shaft.Fig. 6 (b) is for adopting the main drive of secondary externally-engaged cylindrical gear deceleration form, cylindrical gear pair 21 and second stage main gear device tween drive shaft 20 on primary cylinder gear transmission basis, have been increased, wherein, main drive input shaft 5, second stage main gear device tween drive shaft 20 and parallel to each other as 9 three axis of semiaxis of output shaft.Fig. 6 (c) mainly contains initiatively first order cylindrical gear pair, second stage cylindrical gear pair 21, third stage cylindrical gear pair 22 and second stage main gear device tween drive shaft 20 and third stage main gear device tween drive shaft 23 compositions of cylindrical wheel 18, driven cylindrical gear 19 compositions for adopting the main drive of three grades of externally-engaged cylindrical gear deceleration forms.Wherein, main drive input shaft 5, second stage main gear device tween drive shaft 20, third stage main gear device tween drive shaft 23 and parallel to each other as 9 four axis of semiaxis of output shaft.
Fig. 7 installs for the main drive distortion, it is HM Hydraulic Motor 17 and 5 coaxial connections of main drive input shaft, the input module that constitutes, around 0 ° of output shaft axial line--180 ° of installations (consider vehicle ground Clearance problem, should be in theory) around the 360 ° of installations spatially of output shaft axial line.Two figure of Fig. 7 (a) and (b) are respectively front view and the birds-eye view (last figure is a front view) that the distortion of parallel-axis type main drive is installed.As figure, the initiatively pitch circle of the pitch circle of cylindrical wheel 18 and driven cylindrical gear 19 engagement, initiatively cylindrical wheel 18 is assemblied on the input shaft 5, the line of centers of driven cylindrical gear 19 and semiaxis 9(central driving shaft 12) the axial line conllinear, HM Hydraulic Motor 17 and 5 coaxial connections of main drive input shaft, the input shaft axial line of formation and output shaft (semiaxis 9) axis parallel.
Fig. 7 (c) has the main drive of twin shaft double motor input, two HM Hydraulic Motor 17 respectively with 5 coaxial connections of two input shafts, two axial lines that form and output shaft axis parallel, two active cylindrical wheels 18 are assemblied in respectively on two input shafts 5, driven cylindrical gear 19 engagements with being socketed on the output shaft constitute two gear mesh pairs.Wherein, the axial line that is connected to form of HM Hydraulic Motor 17 and input shaft 5 is to carry out 0 ° in the space around the output shaft axial line--180 ° be arranged in parallel.Also can reach the input shaft of space structure layout more than two as required, and corresponding HM Hydraulic Motor more than two.
The distortion of Fig. 8 relative main drive of line position, takeoff output axle center that to be driving engine constitute with Hydraulic Pump, this distortion has made full use of the characteristics that hydraulic tubing flexibly connects.The takeoff output axle center line and the Hydraulic Pump coaxial inner conductor or parallel of driving engine, this axial line can become arbitrarily angled layout with the output shaft axial line of main drive, even can engine at extreme rear, and the position is not subjected to space constraint.Fig. 8 (a) and (b), (c) are respectively driving engine and become 90 °, 0 ° and 45 ° of layouts with the output shaft axial line of parallel-axis type main drive with the takeoff output axle center line that Hydraulic Pump constitutes.
Fig. 9 (a) is for adopting the HM Hydraulic Motor 17 in the constant displacement hydraulic motor 25 substitute structures diagram 3,4, (b) be main drive based on single input shaft duplex set, the two ends of input shaft 5 are connected with two HM Hydraulic Motor 17, and HM Hydraulic Motor axial line and main drive input shaft axial line are concentric.Certainly, also can be in conjunction with the characteristic of 7 (b) and Fig. 9 (b), in the scope that machine allows, be deformed into the transmission system that many input shafts Thomas reaches, it is the two ends while and two coaxial connections of HM Hydraulic Motor of every input shaft, and a plurality of input shaft axial lines and main drive output shaft axis parallel, and around the space mounting of 180 ° of output shaft axial lines.
Claims (9)
1. driving system based on the parallel-axis type main drive that is used for rubber-tyred machinery of hydraulic pressure or electric tramsmission, by driving engine (1), main drive (4), Hydraulic Pump (16), HM Hydraulic Motor (17), diff (8), semiaxis (9), hub reduction device (10) and tire (11) are formed, main drive (4) is by input shaft (5), initiatively cylindrical wheel (18) and driven cylindrical gear (19) are formed, it is characterized in that initiatively cylindrical wheel (18) and driven cylindrical gear (19) employing external toothing, initiatively cylindrical wheel (18) is installed on the input shaft (5), and driven cylindrical gear (19) is fixed on the diff (8); The output shaft of driving engine (1) connects Hydraulic Pump (16), Hydraulic Pump (16) connects HM Hydraulic Motor (17), HM Hydraulic Motor (17) axle is connected with input shaft (5) coaxial inner conductor, semiaxis (9) is two, lay respectively at diff (8) and arranged on left and right sides, and two semiaxis (9) axial lines and input shaft (5) axis parallel; Two hub reduction devices (10) connect two semiaxis (9) respectively, tire (11) fifth wheel limit speed reduction gearing (10).
2. driving system based on the parallel-axis type main drive that is used for caterpillar machinery of hydraulic pressure or electric tramsmission, by driving engine (1), main drive (4), Hydraulic Pump (16), HM Hydraulic Motor (17), central driving shaft (12), steering clutch (13), whole driving system (14) and crawler belt sprocket wheel (15) are formed, it is characterized in that main drive (4) is by input shaft (5), initiatively cylindrical wheel (18) and driven cylindrical gear (19) are formed, initiatively cylindrical wheel (18) and driven cylindrical gear (19) adopt external toothing, initiatively cylindrical wheel (18) is installed on the input shaft (5), and driven cylindrical gear (19) is fixed on the central driving shaft (12); The output shaft of driving engine (1) connects Hydraulic Pump (16), Hydraulic Pump (16) connects HM Hydraulic Motor (17), HM Hydraulic Motor (17) axle is connected with input shaft (5) coaxial inner conductor, central driving shaft (12) two ends connect two steering clutchs (13) respectively, central driving shaft (12) axial line and input shaft (5) axis parallel, whole driving system (14) connects steering clutch (13), and crawler belt sprocket wheel (15) connects whole driving system (14).
3. the driving system of the parallel-axis type main drive based on hydraulic pressure or electric tramsmission according to claim 1 and 2, it is characterized in that described Hydraulic Pump (16) adopts bidirectional variable Hydraulic Pump (16 '), HM Hydraulic Motor (17) adopts bidirectional variable HM Hydraulic Motor (17 ').
4. the driving system of the parallel-axis type main drive based on hydraulic pressure or electric tramsmission according to claim 1 and 2 is characterized in that described motor (24) replaces HM Hydraulic Motor (17), and motor (24) axle is connected with input shaft (5) coaxial inner conductor.
5. the driving system of the parallel-axis type main drive based on hydraulic pressure or electric tramsmission according to claim 1 and 2 is characterized in that output shaft axial line II, the output shaft axial line III in input shaft (5) axial line, output shaft (9) axial line and the whole driving system (14) of main drive is parallel to each other.
6. the driving system of the parallel-axis type main drive based on hydraulic pressure or electric tramsmission according to claim 1 and 2, it is characterized in that setting up multistage cylindrical gear pair and main gear device tween drive shaft between the input shaft (5) of main drive and the semiaxis (9), a gear on every grade of cylindrical gear pair is positioned on the main gear device tween drive shaft, another gear is positioned on the input shaft (5), and the axial line of the axial line of main gear device tween drive shaft, input shaft (5), the axial line of semiaxis (9) are parallel to each other.
7. the driving system of the parallel-axis type main drive based on hydraulic pressure or electric tramsmission according to claim 1 and 2, it is characterized in that driving engine (1) axle and Hydraulic Pump (16) axle are positioned at same axial line and constitute takeoff output axle center line, this axial line becomes arbitrarily angled layouts such as 90 °, 0 ° or 45 ° with semiaxis 9 axial lines.
8. the driving system of the parallel-axis type main drive based on hydraulic pressure or electric tramsmission according to claim 1 and 2, it is characterized in that HM Hydraulic Motor (17) and coaxial connection of main drive input shaft (5), the input module that constitutes, around 0 ° of output shaft axial line--180 ° of installations; Two HM Hydraulic Motor (17) and coaxial connection of main drive input shaft (5), or a plurality of HM Hydraulic Motor (17) is arranged with the coaxial bonded assembly space structure of a plurality of main drive input shafts (5).
9. the driving system of the parallel-axis type main drive based on hydraulic pressure or electric tramsmission according to claim 1 and 2 is characterized in that described HM Hydraulic Motor (17) adopts constant displacement hydraulic motor (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100713984A CN102152737A (en) | 2011-03-24 | 2011-03-24 | Hydraulic or electric drive-based drive system for parallel shaft-type main drive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100713984A CN102152737A (en) | 2011-03-24 | 2011-03-24 | Hydraulic or electric drive-based drive system for parallel shaft-type main drive device |
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| CN102152737A true CN102152737A (en) | 2011-08-17 |
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| CN2011100713984A Pending CN102152737A (en) | 2011-03-24 | 2011-03-24 | Hydraulic or electric drive-based drive system for parallel shaft-type main drive device |
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| CN (1) | CN102152737A (en) |
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| CN104085294A (en) * | 2014-06-16 | 2014-10-08 | 山东临工工程机械有限公司 | Connection structure of engine and torque converter |
| CN110375053A (en) * | 2019-08-19 | 2019-10-25 | 三一汽车制造有限公司 | Land leveller |
| TWI716958B (en) * | 2019-08-07 | 2021-01-21 | 楊英中 | Dual-motor differential drive system |
| US11413949B2 (en) | 2020-11-19 | 2022-08-16 | Ying-Chung Yang | Dual-motor differential drive system |
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Application publication date: 20110817 |