CN86205180U - Floating driving equipment of vehicle - Google Patents

Abstract

The utility model discloses a floating driving equipment of wheeled vehicle, which is a wheeled vehicle, in particular a multiple-wheel driven wheeled vehicle or floating driving equipment on a tractor. The utility model is composed of a differential mechanism, a floating speed reducer, a floating supporting leg, and a rocker mechanism. When the vehicle wheel is used as a steering wheel (such as a front wheel), a steering knuckle and a steering mechanism are arranged in a wheel hub. The adhesion property of the vehicle to the ground is good. The twofold floating actions of the floating speed reducer and the floating supporting leg make the range of floating of the vehicle is relatively big. When one of the vehicle wheels runs into local disturbance, the vehicle wheel can automatically float off, and makes the vehicle get over the disturbance smoothly. The traction force can be fully played. Adopting the steering mechanism to directly operate the steering knuckle in the wheel hub, the steering is flexible, and the applicability is strong.

Description

Floating driving equipment of vehicle

The utility model 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.

The purpose of this utility model provides that a kind of domain of walker is bigger, 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 utility model is to design one by a gearbox floating at traditional main gear 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 a 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, bears 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.

Execute example and accompanying drawing is further described the utility model below in conjunction with prominent.

Brief description of drawings

Fig. 1 is that the overall assembled shaft of the utility model is surveyed scheme drawing.

Fig. 2 is an overall sectional arrangement drawing of the present utility model.

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.

Fig. 5 is unsteady supporting leg lower junction composition when only making drive wheel for the utility model

Subordinate list is each part sequence number title of Fig. 1～Fig. 5.

As Fig. 1, embodiment illustrated in fig. 2 is to adopt a kind of vehicle front-wheel of the present utility model, 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 the interior bearing shell of axle shaft housing (14) (13) sleeve (12) is connected with axle shaft housing (14) with bolt of rear end plate coupling sleeve (12), sleeve (12), and the gearbox floating body can be swung on bearing shell (13) or the antifriction-bearing box that adopts.Sleeve (12) end is processed with screw thread, after inserting the bearing shell (13) in the axle shaft housing (14), copper washer (91) is inserted in the end, behind baffle plate (92) and the locking locking plate (93), with nut (46) sleeve (12) is linked to each other with axle shaft housing (14), the floating gear case does not then have end float misalignment, and a pair of gear is arranged in the gearbox floating, miniature gears be with diff in semiaxis (11) for 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 conical bearing (19) floats, (21) main shaft (18) that will float at the floating gear two ends respectively is fixed in the gearbox floating, and axle head is fixed with lock nut (16) packing washer (17) 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 hypomere (37) and go up hypomere bolt of rear end plate (31) and be connected into unsteady supporting leg housing floats.The housing epimere is inboard to be fixed on inboard bearing lid (30) on the housing with bolt of rear end plate (29), 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 (85) 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 pinning 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 fixed on to tighten up on the wheel hub (67) and with jam nut by driving shaft bearing (61) and prevents steering swivel (62) end float misalignment in wheel hub.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), two arms of spindle arm 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 the unsteady main shaft (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 is only made drive wheel and is not made wheel flutter, as shown in Figure 5,, on lower sprocket (49) line of centers, be connected with drive shaft sleeve (94) with the bolt supporting leg that will float in unsteady supporting leg hypomere (37) outside, rear-wheel hub (95) by bearing carrier ring on drive shaft sleeve.Transmission shaft (45) the inner is a spline, inserts in lower sprocket (49) internal splined hole, and the flange of outer end links to each other with rear-wheel hub (95) by bolt, and axle drive shaft (45) directly drives 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 supporting 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 utility model 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 chain-wheel mechanism that the power of driving engine reaches the supporting leg that floats by diff, semiaxis, a pair of gear unsteady, drop-gear box during walking reaches axle drive shaft and turns a wheel, and 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 vehicle or the tractor of vehicle of the present utility model, particularly all-wheel drive, good cross-country ability, anti-seismic performance is strong, and wheel is good to the ground adhesion property, present embodiment, when in service, through test, when certain driving wheel was crossed 100 millimeters high stubs, vehicle body was basicly stable, the driving force performance better, common tractor drawbar pull is in the 400Kg when complete vehicle weight is 1200Kg, and adopts the utility model rear haulage Li Keda 900Kg, turns to flexibly light.

Subordinate list:

Claims (6)

1, a kind of wheeled car floating driving mechanism, it comprises diff, semiaxis and the steering hardware when being used for wheel flutter, it is characterized in that behind the axle shaft housing of semiaxis, being equipped with gearbox floating with a pair of gear pair, be equipped with on the output shaft of its gearbox floating and have the unsteady supporting leg that pair of sprocket is paid, 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 form one can make float supporting leg all the time with vertical parallelogram four-bar mechanism itself.

2, a kind of wheeled car floating driving mechanism, it comprises diff and semiaxis, it is characterized in that behind the axle shaft housing of semiaxis, being equipped with gearbox floating with a pair of gear pair, be equipped with on the output shaft of its gearbox floating and have the unsteady supporting leg that pair of sprocket is paid, float and between supporting leg top and vehicle body rocker mechanism is housed, gearbox floating is that the bearing that the energy gearbox floating is done relative swing to vehicle body 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 form one can make float supporting leg all the time with vertical parallelogram four-bar mechanism itself.

3, by claim 1 or 2 described wheeled car floating driving mechanisms, it is characterized in that the gear pair in the gearbox floating is made up of a pair of big spur pinion.

4, by the described wheeled car floating driving mechanism of claim 3, it is characterized in that input miniature gears and the semiaxis in the gearbox floating made one.

5, by the described wheeled car floating driving mechanism of claim 1, it is characterized in that the steering swivel parts in the steering hardware are mounted in the wheel hub, the constant-velocity universal joint of transmission power between unsteady supporting leg and axletree is installed in the steering swivel.

6,, it is characterized in that gearbox floating and connecting of semiaxis housing are that floating bearing connects by claim 1 or 2 described wheeled car floating driving mechanisms.

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