CN86105842A - Floating driving mechanism for vehicles - Google Patents

Floating driving mechanism for vehicles Download PDF

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Publication number
CN86105842A
CN86105842A CN 86105842 CN86105842A CN86105842A CN 86105842 A CN86105842 A CN 86105842A CN 86105842 CN86105842 CN 86105842 CN 86105842 A CN86105842 A CN 86105842A CN 86105842 A CN86105842 A CN 86105842A
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China
Prior art keywords
floating
wheel
gearbox
supporting leg
driving mechanism
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Pending
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CN 86105842
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Chinese (zh)
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董晓东
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FOREST INDUSTRY INST HUNAN
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FOREST INDUSTRY INST HUNAN
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Priority to CN 86105842 priority Critical patent/CN86105842A/en
Publication of CN86105842A publication Critical patent/CN86105842A/en
Pending legal-status Critical Current

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Abstract

Floating driving mechanism for vehicles is the wheel of a kind of wheel, particularly multiple-wheel drive or the floating driving mechanism on the trac..It is by diff, gearbox floating, and float supporting leg and rocker mechanism are formed.Make wheel flutter (as front-wheel) Shi Youyi cover again when this wheel and be placed in steering swivel and steering hardware in the wheel hub.Vehicle is good to the ground adhesion value, because the dual floating action of gearbox floating and unsteady supporting leg makes its domain of walker bigger.This wheel can float voluntarily and makes vehicle clear an obstacle reposefully when certain wheel local disturbance, and tractive force brings into play, and the steering swivel in the steering hardware direct control wheel hub of employing turns to flexibly, and applicability is strong.

Description

Floating driving mechanism for vehicles
The present invention relates to the wheeled car of a kind of wheeled car, particularly multiple-wheel drive or the floating driving mechanism on the trac..
When wheeled car at rough and uneven in surface ground run or when carrying out operation, for guaranteeing drive wheel and ground good adhesion value is arranged, increase vehicle damping and propulsive effort thereof, on wheel-tire tractor, adopt a kind of direct floating roller limit drop-gear box that connects with wheel at present.This trac. is stronger to ground out-of-flat adaptive capacity.Compare with fixed drive, its tractive force performance better.But this device float scope is little.The wearing and tearing of gearbox floating previous stage finishing bevel gear cuter are big and adjust inconvenient.Simultaneously because tire touchdown point, far away apart from steering swivel.When the wheel that uses this drop-gear box is a drive wheel when being wheel flutter again, cornering resistance is big, turns to difficulty.So that the speed of a motor vehicle and tractive force are had strict restriction, and its range of use suffers restraints.
It is bigger to the purpose of this invention is to provide a kind of domain of walker, and wheel is adherence ground all the time, can adapt to the bigger convex-concave ground of out-of-flat, crosses local disturbance and can keep vehicle body steady, and anti-seismic performance is good, turns to flexibly.Be used for wheeled car, particularly the vehicle of multiple-wheel drive or the floating driving mechanism on the trac..
Solution of the present invention is to design one by a gearbox floating at conventional central transmission diff and axle drive shaft (semiaxis) back, the floating driving mechanism that float supporting leg and rocker mechanism are formed.Power is delivered to a pair of gear in the gearbox floating by axle drive shaft, is delivered to chain-wheel mechanism in the supporting leg that floats by the output shaft of gear, and the output shaft of sprocket wheel is coaxial with axletree, the drive wheel.Supporting leg floats, gearbox floating, rocker mechanism and vehicle body form a parallelogram linkage, when Uneven road or certain wheel supporting leg that floats when meeting obstacle can make this wheel unsteady in a big way with the floating gear case, clear an obstacle, the vehicle body held stationary.Because the effect of parallelogram linkage makes the supporting leg that floats vertical with vehicle body all the time, bear load simultaneously.
When this drive wheel during simultaneously as wheel flutter (as the vehicle front-wheel) floating and constant-velocity universal joint be set behind the discharging chain wheel shaft of supporting leg, constant-velocity universal joint one end connects with sprocket shaft, the other end connects with axletree, rotates by the constant-velocity universal joint drive wheels.Steering swivel connects with the steerage gear bar by steering universal joint simultaneously, makes steerage gear bar control steering swivel rotating-wheel to change vehicle forward direction by the chaufeur steering wheel rotation by steering swivel system.
Below in conjunction with embodiment and accompanying drawing thereof the present invention is further described.
As Fig. 1, embodiment illustrated in fig. 2 is to adopt a kind of vehicle front-wheel of the present invention, and it had both made drive wheel also is wheel flutter.Mainly by gearbox floating, the supporting leg that floats, rocker mechanism, steering hardware is formed.Mainly by gearbox floating outside housing (25), interior side body (20) is formed the gearbox floating body to gearbox floating, and inner and outer shell connects with fastening bolt (24).Box inside inserts in the axle shaft housing (14) with bolt of rear end plate coupling sleeve (12), sleeve (12), and bearing shell (13) connects sleeve (12) with axle shaft housing (14), and the gearbox floating body can be swung on bearing shell (13) or the antifriction-bearing box that adopts.A pair of gear is arranged in the gearbox floating, and miniature gears is semiaxis (11), with semiaxis in the diff be one, with tapered roller bearing (8) and (10) semiaxis (11) is fixed in the gearbox floating.Floating gear (21) is gone up miniature gears with semiaxis (11) and is meshed in drop-gear box, floating gear (21) is fixed on the unsteady main shaft (18) with splined, main shaft one end that floats is fixed in the gearbox floating with conical bearing (19) (21) main shaft (18) that will float at the floating gear two ends respectively, and axle head is fixed with lock nut (16) packing washer and prevents end float misalignment.Main shaft (18) other end that floats inserts in the supporting leg that floats, and uses splined upper sprocket wheel (33) on it.Float supporting leg by unsteady supporting leg epimere (35), and supporting leg shell bolt of rear end plate (31) was connected into the supporting leg housing that floats about the supporting leg hypomere (37) that floats reached.The housing epimere is inboard to be fixed on inboard bearing lid (29) on the housing with bolt of rear end plate (30), inboard bearing Gai Yiduan has the convex shoulder fixed type bearing, the other end stretches out and includes bearing shell (27), is enclosed within bolt of rear end plate (26) to be fixed on the external part of bearing cap shim of gearbox floating outside housing (25).The supporting leg shell that floats can be swung on bearing shell (27) or the antifriction-bearing box that adopts.Float and to insert the main shaft (18) that floats in the supporting leg shell, the main shaft (18) that will float with supporting leg epimere inboard bearing (32) and outer bearing (34) in upper sprocket wheel (33) both sides is fixed on the unsteady supporting leg shell.The supporting leg hypomere (37) that floats has bearing hole.Lower sprocket (49) is fixed on the axle drive shaft (45) with splined, both sides axle drive shaft inboard bearing (48), axle drive shaft outer bearing (50) is fixed on axle drive shaft on the supporting leg hypomere (37) that floats, and axle drive shaft (45) axle head is locked with shaft end nut (46).Axle drive shaft (45) connects with pin with constant-velocity universal joint assembly (54), the constant-velocity universal joint assembly other end links drive wheel universal driving shaft (70) with pin, there is spline to connect on the drive wheel universal driving shaft (70) with drive wheel rim shoulder (68), rim shoulder (68) is fixed by bolts on the drive wheel wheel hub (67), and drive wheel wheel hub (67) is fixed on the wheel rim (75) with attachment bolt (74).
Rocker mechanism is mainly by the moving bearing (79) of rocking bar, rocking bar (84), rocking bar fixed bearing (7) composition.Rocking bar moves bearing (79) and is fixed by bolts on the supporting leg epimere (35) that floats, rocking bar (84) one ends connect the moving bearing (79) of rocking bar (84) and rocking bar with rocking bar untie-sell axle (80), rocking bar untie-sell axle (80) one ends have shoulder, the other end is fixing with throttled nut (82) and spring cotter (78), and rocking bar can only be swung around the bearing pin center can not end float misalignment.Rocking bar (84) other end uses rocking bar upper pin (6) that rocking bar (84) is connected with rocking bar fixed bearing (7) equally, and the rocking bar fixed bearing forms one with being weldingly fixed on the preceding support tube (3) of operator's compartment with fuselage.
Steering hardware is mainly by steering swivel (62), ear seat (53), and steering universal joint (42), steerage gear bar (41), spindle arm (89), longitudinal tie (88), steering trapezium intermediate rod (87) is formed.As shown in Figure 1, 2, 3.Steering swivel (62) is solid in that (67 〕 Shang And tighten up with jam nut and prevent steering swivel (62) end float misalignment in wheel hub at wheel hub by driving shaft bearing (61).Steering swivel (62) has two hangers up and down.Ear seat (53) is fixing at a leg outer side that floats with ear seat bolt of rear end plate (52).Three hangers are arranged on the ear seat, wherein two hangers are corresponding with the steering swivel hanger, steering swivel upper pin (77) connects ear seat hanger with steering swivel lower bearing pin (59) with the steering swivel hanger, it is that rotate in the axle center that steering swivel (62) can drive the above lower bearing pin line of centers of tire.Another hanger passes through fixedly steering universal joint (42) of the two fork bearing shells (43) of universal-joint on the ear seat, steering universal joint (42) can rotate in bearing shell (43), the one end connects with steering swivel upper pin (77) with bearing pin, and the other end connects with steerage gear bar (41) with bearing pin.Steerage gear bar (41) other end is a spline.Spline inserts in the spline housing of spindle arm (89), the spindle arm two ends respectively with longitudinal tie (88), steering trapezium intermediate rod (87) connects.The steering trapezium intermediate rod connects the spindle arm of another front-wheel, and two front-wheels can be turned to synchronously.Longitudinal tie (88) is connected with the operator's compartment deflector, is turned to synchronously by longitudinal tie (88) control two front-wheels by deflector.
The transmission of this real example is the gear driven floating gear (21) by semiaxis (11) other end in the diff (86) as shown in Figure 3, by unsteady main change (18) in the floating gear (21) power is reached upper sprocket wheel (33) in the supporting leg that floats, by chain power is reached lower sprocket (49) then, by lower sprocket transmission axle drive shaft (45), by constant-velocity universal joint (54) power is reached tire by drive shaft (45) and make tyre rotation.When wheel was only made drive wheel and do not made wheel flutter, axle drive shaft (45) directly drove tyre rotation as the axle drive shaft of tire.
As shown in Figure 4.When a certain tire ran into local disturbance when wheel advances, because the gearbox floating and the supporting leg that floats all can be swung, resistance wheel increased, and the wheel that will make with joint efforts of its propulsive effort and resistance rises to the long and short dash line position, clear an obstacle, and vehicle body held stationary voluntarily.Simultaneously because gearbox floating, the wing leg that floats, rocking bar (84) and vehicle body form parallelogram linkage as shown in the figure, no matter wheel rises in limited range, drop to any position, unsteady supporting leg remains the position vertical with vehicle body, bears load.Its limited range is by float vertex that supporting leg rises of inhibiting device (90) restriction.
Service condition of the present invention is such.Vehicle body descends when vehicle stops, and is limited the relative position of float supporting leg and vehicle body by inhibiting device (90).When the fire an engine rear drive equipment is had an effect, propulsive effort forces by gearbox floating, supporting leg floats, rocker mechanism, the four-bar mechanism action that vehicle body is formed, floating, supporting leg is relative with gearbox floating to be swung, under four-bar mechanism effect constraint, the supporting leg that floats descends, the vehicle body come-up, and each unsteady supporting leg is in float conditions.The link chain mechanism that the power of driving engine reaches the supporting leg that floats by retarder, semiaxis, a pair of gear unsteady, drop-gear box during walking reaches axle drive shaft and turns a wheel.Vehicle advances.As local disturbance, the wheel of meeting obstacle will float automatically and clear the jumps, and all float automatically at each wheel of scraggly ground, and vehicle body passes through reposefully.Because each vehicle is in well attached state to ground all the time.The propulsive effort performance better.To the drive wheel as wheel flutter, because steering swivel is in wheel hub, the cornering resistance arm lengths is little, the handling maneuver light and flexible.
Adopt the vehicle or the trac. of vehicle of the present invention, particularly multiple-wheel drive, good cross-country ability, anti-seismic performance is strong, and wheel is good to the ground adhesion value, present embodiment, when in service, through test, when certain drive wheel was crossed 100 millimeters high stubs, vehicle body was basicly stable, the propulsive effort performance better, common tractor drawbar pull is in the 400kg when complete vehicle weight is 1200kg, and adopts rear haulage Li Keda 1100kg of the present invention, improves 175% than general trac. power performance.Turn to light flexibly.
Brief description of drawings
Fig. 1 surveys scheme drawing for the overall assembled shaft of the present invention.
Fig. 2 is an overall sectional arrangement drawing of the present invention.
Fig. 3 is the transmission scheme drawing of Fig. 1.
Fig. 4 is the supporting leg that floats among Fig. 1, gearbox floating, the geometry site scheme drawing of rocking bar bar structure and vehicle body.
Wherein:
Figure 86105842_IMG1
Figure 86105842_IMG2

Claims (5)

1, a kind of floating driving mechanism for vehicles, it comprises diff, semiaxis and steering hardware, it is characterized in that behind the axle shaft housing of semiaxis, gearbox floating being housed, on the output shaft axle of its gearbox floating unsteady supporting leg is housed, float and between supporting leg top and vehicle body rocker mechanism is housed, gearbox floating is that the bearing that can make gearbox floating that vehicle body is done relative swing connects with the connection of semiaxis housing, the supporting leg that floats is that the bearing that both can be swung relatively connects with the connection of gearbox floating, vehicle body, gearbox floating, supporting leg floats, rocker mechanism forms one can make the supporting leg parallelogram four-bar mechanism that vehicle body is vertical all the time that floats.
2,, it is characterized in that the chain drive that the driving device in the unsteady supporting leg is made up of last lower sprocket and chain by the described floating driving mechanism for vehicles of claim 1.
3, by the described floating driving mechanism for vehicles of claim 1, it is characterized in that the driving device in the gearbox floating is the gear pair that is made of a pair of big spur pinion.
4, by claim 1,2,3 described floating driving mechanism for vehicles is characterized in that input miniature gears and the semiaxis in the gearbox floating made one.
5, by the described floating driving mechanism for vehicles of claim 1, the steering swivel parts when it is characterized in that making wheel flutter in the steering hardware are mounted in the wheel hub, and the constant-velocity universal joint of transmission power between unsteady supporting leg and axletree is installed in the steering swivel.
CN 86105842 1986-07-07 1986-07-07 Floating driving mechanism for vehicles Pending CN86105842A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 86105842 CN86105842A (en) 1986-07-07 1986-07-07 Floating driving mechanism for vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 86105842 CN86105842A (en) 1986-07-07 1986-07-07 Floating driving mechanism for vehicles

Publications (1)

Publication Number Publication Date
CN86105842A true CN86105842A (en) 1987-03-25

Family

ID=4802986

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 86105842 Pending CN86105842A (en) 1986-07-07 1986-07-07 Floating driving mechanism for vehicles

Country Status (1)

Country Link
CN (1) CN86105842A (en)

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