CN101138992B

CN101138992B - Terrain conforming track assembly

Info

Publication number: CN101138992B
Application number: CN 200710003424
Authority: CN
Inventors: G·布拉齐尔
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-09-07
Filing date: 2007-02-07
Publication date: 2013-10-09
Anticipated expiration: 2027-02-07
Also published as: CN101138992A

Abstract

An endless track assembly that mounts to a wheeled vehicle. The assembly provides 1) a track suspension having fixed or adjustable, independently biased sets of idler wheels to vary the track contour without affecting track tension, 2) an eccentric bearing housing at a drive sprocket controls track tension, 3) a contoured peripheral edge at the drive sprocket prevents ice and mud buildup, 4) rubber-coated, plastic idler wheels facilitate track movement, 5) a multi-vehicle compatible adapter mounting plate accommodates a variety of vehicles, 6) a rotation limited torsion coupler and/or rotation limiting coupler arms prevent track contact with the vehicle, 7) a locking steering arm coupler prevents loss of steering control, 8) shaped track lugs and channels clear and direct debris away fromthe track suspension and drive assembly, and 9) a center, spring biased coupling suspension stabilizes and enhances the contour following and load handling capabilities in the center region of the track. The improved suspension particularly supports sets of idler wheels in pivotal relation to the track support frame and resiliently biases a pre-tensioned rocker arm that links adjacent suspension arms mounted to the adjoining idler wheels. Suspension arm movement induces expansion and contraction of tension springs coupled to the rocker arms to augments shape changes at the track contact surface to optimize traction and steering control.

Description

The track assembly of adaptation to the ground

Relevant U. S. application

The application is that the US sequence number of submitting on June 13rd, 2005 is 11/151,564 part continuation application, described 11/151, No. 564 applications are that the sequence number of submission on January 21st, 2003 is 10/348,156 continuation application, and this is 10/348 years old, 156 applications are now patented, the patent No. is 6,904,986.

Background technology

The present invention relates to all-terrain vehicle (ATV), relate in particular to a kind of improved endless track assembly, it is alternative the ATV of wheel or the drive wheel of any two-wheeled, four-wheel or other many wd vehicles.

Now develop multiple all-terrain vehicle, be used for amusement, commerce, agricultural and military use.These vehicles can comprise wheel and/or endless track assembly, are used in surface pressure lower on the driving system mating surfaces and are implemented in traction on the off-road terrain.

Light cargo carrier has represented the example that is used on snowfield or the ice face based on the recreational vehicle of crawler belt.But, the use that is difficult to the landform (for example, wearing and tearing, acryogenic) of other type and described vehicle of described crawler belt is limited to specific weather and the season in 1 year.

The multiple individual ATV that other support crawler belts, ground grip tyre and/or tire and crawler belt combination also can be annual in the forest land, wetland and marsh or desert terrain use.Based on the ATV vehicle of crawler belt, for example oversnow driving system is designed for specific purpose usually and is difficult for being fit to other application.Under the condition of forest land, worked well by the ATV vehicle based on wheel that ground grip tyre supports, but be difficult to pass through snowfield, marsh and desert terrain.

Therefore the modifying component that needs a kind of economy is with the use of expansion based on ATV and the baby truck of wheel.Some examples that can be used for 4Wdvehicle is repacked into the track assembly of continuously tracked vehicle are disclosed in US Patent 3,689,123; 4,448,273; With 5,607,210.

The improvement track assembly that the present invention develops can adapt to aforementioned need and a plurality of improved features are provided, and the various vehicles that provided by a plurality of automobiles and ATV maker are provided described improvement feature.All things considered, described improvement allow in a few minutes ATV repacked into the crawler belt operation.

Improved track assembly provides: 1) idle pulley of elastic biasing hangs, the shape adaptation to the ground of crawler belt mating surfaces is changed, 2) scribble the plastics idle pulley of rubber, 3) has the drive wheel of radiant type peripheral edge, in case stagnant ice and mud are piled up, 4) eccentric track takeup accommodates the eccentric bearing of installing, cooperate to rotate track sprocket/sprocket wheel with control track tension, 5) many vehicles switching adapter plates, 6) reverse the defining flange on the mounted connector, 7) be fixedly coupled arm by fixing screw, 8) crawler belt lug is shaped to the guiding chip and hangs and driven unit and 9 away from crawler belt) the spring suspension assembly, it can comprise another idle pulley, and the isogonism idle pulley hangs before and after connecting.

Summary of the invention

Main purpose of the present invention provides a kind of endless track assembly of wheel of replaceable wheeled vehicle.

Another object of the present invention provides a kind of improved endless track assembly, and it has the idle pulley suspension, and described idle pulley hangs and makes crawler belt mating surfaces adaptation to the ground profile variations.

The idle pulley that another object of the present invention provides a kind of elastic biasing hangs, and it adapts to the terrain profile that changes under the situation that does not change track tension, and keeps contacting so that handle than the ground of small size.

Another object of the present invention is independent and a plurality of idle pulley groups of flexibly setovering, and keeps crawler belt to contact with lowland with the high obstacle that rises to change the crawler belt profile, the wherein independent biasing of every group of relative other groups.

Another object of the present invention provides a kind of crawler belt and hangs, it has a pair of idle pulley, described idle pulley have can regulate, complementary elastic biasing (for example, compression or stretching), rise and/or descend with the box lunch wheel, the corresponding deformationization everywhere of crawler belt profile and when changing, can between idle pulley, set and keep a constant relative biasing.

Another object of the present invention provides a kind of crawler belt and hangs, idle pulley group before and after it has, and wherein said idle pulley is independent toward each other biasing under pressurized and stretching action.

Another object of the present invention provides a kind of track support frame, and it has interchangeable drive wheel or sprocket wheel, and described drive wheel or sprocket wheel have the tooth that protrudes to the side, to adapt to the crawler belt that has different tooth pitches between lug driving.

Another object of the present invention provides a kind of drive sprocket, and it has the wavy profile peripheral edge, and setting is to guide ice, mud and other chip away from described edge.

Another object of the present invention is that a kind of eccentric adaptor union is provided between framework and crawler belt, to regulate track tension.

Another object of the present invention provides a kind of bear box, and described bear box off-centre is installed on the drive sprocket, and rotates in the mating holes of support frame, to regulate track tension.

Another object of the present invention provides a kind of molded plastics idle pulley, it scribbles and the material that drives the bonding complementation of crawler belt material (for example rubber) at outer surface, to strengthen the engagement between idle pulley and the driving crawler belt, and because the plastic sidewalls that exposes contacts and slides, so that wearing and tearing, crawler belt reduces to minimum in crawler belt groove or groove.

Another object of the present invention provides a kind of driving crawler belt, and wherein driving band and the band at the peripheral edge place of described crawler belt is configured to cup-shaped, and inwardly the side of contiguous drive sprocket and idle pulley breaks away from from support frame to prevent crawler belt.

Another object of the present invention provides a kind of many vehicles adapter plate, and it is installed on the drive sprocket, and has the contoured surface (for example, profile, hole, groove, recess, dimple etc.) with the different installation configurations match of multiple vehicle.

Another object of the present invention is that a kind of reactive torque adaptor union is provided between track assembly and vehicle, and it has the first and second fixing attaching partss of pivot, wherein flanged pin surface-limited track assembly the rotating relative to vehicle of attaching parts each other.

Another object of the present invention provides a kind of connector housing, it is fixed on (for example tie rod ball or ball-and-socket type joint) on the Vehicular turn linkage, and comprise fixing screw, described fixing screw and the wavy profile surface engagement of mating attaching parts, make it and the shell adjacency with the tractive attaching parts, and locking connects to prevent vibration and loosening.

Another object of the present invention provides a kind of spring suspension and linkage is connected to the idle pulley group of setovering in front and back, and described idle pulley group can comprise an extra idle pulley, to stablize the middle section of crawler belt.

Above-mentioned purpose of the present invention, advantage and feature can obtain by preferred track assembly of the present invention.Described assembly has the cast metal support frame, and it has left and right sides vertical lift device and lower and upper cross-member.Upper beam hole backup bearing case, described bear box is eccentric fixing, rotates in replaceable drive sprocket with eccentric manner.The capacity eccentric bearing case extends through the driving frame aperture, and rotates the guiding drive sprocket and determine track tension.The frame flange arm that is positioned at the place, hole compressibi1ity is arranged is caught bear box and is made drive sprocket aim at support frame to keep determined track tension.

Side arm protrudes from drive sprocket, and drives lug in the crawler belt interior bonds.The peripheral edge of drive sprocket be shaped in case stagnant ice, mud and chip in the accumulation of drive sprocket and crawler belt groove.The drive sprocket that has different tooth pitches can be connected to framework.

Many vehicles adapter plate is connected to drive sprocket on the lug bolt of vehicle.Relevant suspension linkage is connected to track assembly the chassis of multiple different vehicle and/or turns to the surface.

Independent biasing, plastics idle pulley group molded, rubber coating cooperate with drive sprocket, with the driving crawler belt of support belt band ear.The idle pulley of two groups of different sizes makes front end and the tail end biasing that drives crawler belt, so that the variation of the variation of crawler belt mating surfaces imitation terrain profile.

The pivot pin that is fixed on lower beam supports a pair of suspension or swing arm, and described suspension or swing arm support the wheel shaft of every group of idler shaft.Other pivot pin is an end of linkage or rocking arm fixedly, and described linkage or rocking arm extend through groove or the hole between the lower beam swing arm.The opposite end of Gu Ding spring offset rocker arm under pressure, described spring has threaded regulating control the matching frame.The obstacle that is risen at height by idle pulley or lowland motion and the rotation of arbitrary swing arm of causing is passed to other idle pulley by rocking arm, and can regulate that biasing is resisted or auxiliary by spring place default.

Reverse the control linkage device and be fixed to a vertical lift device, and a pair of attaching parts stretches out from core members.Flange on the attaching parts is outstanding as stop motion mechnism, with the maximum rotation of restriction track assembly.Tumbler is fixed between an attaching parts and the connector housing, and described connector housing is caught the steering link of vehicle, for example tie rod ball.The running surface of tumbler cooperates with fixing screw on the connector housing, with promptly and the locking tie rod ball, with vibration proof.

The lug that is shaped is inner outstanding from crawler belt, to form the groove of plastics idle pulley.The side of idle pulley is coated side contact cell wall not, and rubber wheel rail-engaging face contact track.Lug scrapes chip from idle pulley, and has the surface to be suitable for guiding chip away from crawler belt inside.

Spring hangs the idle pulley assembly that is connected to the front and back adaptation to the ground by the walking bar rod arm.Described spring hangs the load-carrying capacity that has strengthened track assembly, and the profile crystallized ability is extended to the crawler belt middle section.Extra idle pulley can be supported on the spring bearing.

Other purpose of the present invention, advantage, feature and structure will become clearer by description taken in conjunction with the accompanying drawings hereinafter.Similar parts and assembly have similar digital marker in each accompanying drawing.Specification sheets should literally not understood restriction the present invention.And should in the broad range of claims, explain the present invention.

Description of drawings

Fig. 1 is the front perspective view of the track assembly after the assembling.

Fig. 2 is the back perspective view of the track assembly after the assembling.

Fig. 3 is the decomposition diagram of track assembly.

Fig. 4 is the transparent view that a row of internal track surfaces drives lug.

Fig. 5 is scheme drawing, and the relative profile that shows other idle pulley positions and driving crawler belt changes, to adapt to the high obstacle that rises.

Fig. 6 is scheme drawing, and the respective profile that shows other idle pulley positions and driving crawler belt changes, to adapt to the lowland landform.

Fig. 7 is the scheme drawing that the idle pulley of compressibi1ity biasing hangs.

Fig. 8 is the scheme drawing with idle pulley suspension of spring stretching fixed bias.

Fig. 9 shows the planar view of driver slot of the relative crawler belt of the peripheral edge shape inside of drive wheel.

Figure 10 shows the section drawing of driver slot of the relative crawler belt of the peripheral edge shape inside of idle pulley.

Figure 11 shows the scheme drawing that drives other track tensions of crawler belt under the difference of eccentric drive track takeup is rotated.

Figure 12 shows the planar view of switching adapter plate.

Figure 13 shows the two sectional type adaptor union and is connected to the transparent view that reverses the control shell.

Figure 14 shows the transparent view of spindle arm connector housing and Control arm.

Figure 15 shows the spring suspension of connection and hangs interconnective transparent view with idle pulley, and wherein said spring is not crooked.

Figure 16 shows the spring suspension of connection and hangs interconnective transparent view, wherein said spring bending with idle pulley.

Figure 17 shows the spring suspension of connection and hangs interconnective transparent view with idle pulley, wherein has another idle pulley to be connected described spring and hangs.

Similar structure has identical digital Reference numeral and/or symbol in the accompanying drawing.

The specific embodiment

With reference to accompanying drawing 1-3, show front, the back side and the decomposition view of improvement track assembly 2 of the present invention.Independent track assembly 2 is installed in the driving and non-driving wheel of ATV, truck or other vehicle usually, can need land locomotion on the landform of low pressure of contact surface at snowfield, sand ground and other so that vehicle refitting is become.When being applicable to common individual ATV, the pressure of contact surface that assembly 2 has is less than one pound per square inch.Bigger track assembly 2 can be used for power actuated vehicle, for example 1/2 to 1 ton baby truck or even bigger vehicle.

Each track assembly 2 generally provides the endless track 6 of reinforcing.Crawler belt 6 is made by rubber usually, has suitable belting and reinforced fibers, with the landform that stands to run into usually, comprises rock, log, mud, sand ground etc.After setting preferred tension force, the lateral longitudinal that crawler belt 6 exposes is configured to inside slightly cup-shaped in

edge

4 and 5 to the periphery.Be convenient to make crawler belt 6 to remain in the suspension near the exposed side place track edges 4 of adjacent idle pulley and 5 dark cup-shaped extruding.

Crawler belt 6 provides outside face 8 and interior or inner surperficial 9, and described inside face 9 is around inner space 7.Outside surface 8 lugs 10 with a row required form and size that contact to earth, it is arranged in the arrangement that spaced rows or other need usually.Lug 10 generally formalized and locate to strengthen expection on the landform traction and travel.The inside face 9 of crawler belt 6 comprises the internal lobes 14 of serial lateral spacing and the row 12 of outer lug 16, referring to Fig. 4.Side between the lug 14 and 16 forms the outer idle pulley groove 18 of pair of longitudinal at interval, described groove 18 and central authorities longitudinally in drive wheel groove 20 at interval.

Crawler belt 6 is around two front portions and two

backside idler pulley

22 and 23 and four interior idle pulleys 24 suspensions.Idle pulley 22-24 (eight idle pulleys altogether) is installed in the side of crawler frame 26 and rotates in groove 18.Front and

rear idle pulley

22 and 23 shows the diameter (for example 8 to 12 inch) bigger than interior idle pulley 24 (for example diameter is 3 to 6 inches).

Idle pulley

22,23,24 size can change as required.

Rubber wheel rail-engaging face and anchor ring 27 are fixed on the circumference stayed surface of each idle pulley 22-24, provide traction with buffering and internal track surface 9, referring to Figure 10.Band 27 can be constituted and/or can be had contact surface with tyre surface 9 by multiple material, that is, for example, being shaped has groove or outshot, to contact, traction and the rotation of crawler belt 6.Band 27 can with wheel 22-24 inserted mode system, or install separately and/or bonding or be coated on the wheel 22-24.

Idle pulley 22-24 is made of the pressing mold plastics, although also can be made and/or be made by other manufacturing process by other material.Idle pulley 22-24 turns round in groove 18, and takes turns the smooth relatively plastics side of 22-24 on the close vertical sidewall of longitudinal slot 18.Described plastics contact lug 10 slides.To not tolerating, described chip is easy to trailing wheel 22-24 and the inner discharge of crawler belt to wheel 22-24, and is as described below for the detrital facies that adhere to.

Cast aluminium drive wheel or sprocket wheel 28 turn round in groove 20.Side flanges arm 30 is outstanding from the sidewall of many wheels spoke barrel 31, and engagement lugs 14 and 16 and drive the front surface 34 of crawler belt 6.The peripheral edge 29 of drive wheel 28 is formalized in case the accumulation on drive wheel 28 of stagnant ice and/or chip, referring to Fig. 9.Edge 29 specifically is shaped to has the combination arcuate profile that the quadrntnt surface that is close to by several constitutes.Form several reliefs or recess, it cooperates to remove and discharge chip with groove 20.

Referring to Fig. 4,9 and 10, arrange the chip that the cooperation wiping action that took place further reduces collection at 12 o'clock by each that contacts lugs 14 and 16 in flange arm 30.The front surface of abuts ledge 14 generally is that flat and vertical inwardly track surface 9 is outstanding, to promote and the contacting of flange arm 30.Externally with the lug 14 of

internal groove

18 and 20 and 16 sidewall, have conical surface 33 and 35 successively, they inwardly open when described conical surface swells from surperficial 9.The conical surface 33 of groove 20 scrapes and removes the chip of being discharged by the peripheral edge 29 of drive wheel 28.Recess 32 on the tail surface of lug 14 is further removed the chip from drive wheel 28 and/or crawler belt 6 inside.

In addition, in the conical surface 33 at groove 18 places and 35 and the complementary conical plastics sidewall coupling of idle pulley 22-24.When idle pulley 22-24 rotated along groove 18, all chips on the idle pulley 22-24 were scraped by the side of trailing wheel 22-24.Contacting also than traditional crawler belt of plastics and rubber stands still less wearing and tearing.Preceding and the back vertical wall 34 of lug 16 and each of 36 have to the outstanding combination taper of flat top.Wall 34 and 36 also tapered to the lateral edges horizontal expansion of crawler belt 6 time is so that the chip that scrapes from idle pulley 22-24 is deflected from the inside of crawler belt 6.Therefore idle pulley 22-24 can operate steadily, and does not assemble chip and may make crawler belt 6 from framework 26 displacements.

Refer again to Fig. 3, although only show among eight idle pulley 22-24 two, each track assembly 2 is configured to elastic biasing idle pulley 22-24, to follow and to adapt to the profile variations of crawler belt 6 on landform.Under static state (shown in broken lines), crawler frame hangs crawler belt 6 is supported on the framework 26, to present roughly vertical profile or the profile of equicrural triangle, referring to Fig. 5 and 6.On the go, idle pulley 22-24 is independent and flexiblely allow contact to earth front end, middle-end and the rear end part on surface 8 of crawler belt crooked and rise and fall.

Vertical profile of crawler belt 6 or profile are controlled and are contacted with the best of landform to keep turning to, for example shown in the solid line among Fig. 5 and 6 by idle pulley 22-24 guiding.This realizes by group

idle pulley

22,24 and 23,24 before and after setovering independently of one another.Every group of

idle pulley

22,24 and 23,24 default biasing are adjusted respectively, with the operation that allows the user to repair each track assembly 2.

Mating surfaces 8 causes front idler wheel 22 and adjacent idle pulley 24 to rotate and change crawler belt profile in obstacle or the motion in the lowland that height rises.For example referring to Fig. 5, if front idler wheel 22 risings and relative framework 26 are clockwise rotate, adjacent idle pulley 24 is and then clockwise rotated by 78 guiding of rocking arm linkage.Elastic biasing member 86 stretches and offset rocker arm 78, to help to rotate and keep the crawler belt kiss the earth.

In addition, referring to Fig. 6, if front idler wheel 22 follows lowland and relative framework 26 to rotate counterclockwise, servo-actuated idle pulley 24 is by rocking arm 78 guiding accompany movements.Biasing member 86 pressurized simultaneously rotates to stop.In arbitrary situation, mating surfaces 8 is optimized by elasticity with the area of contact of landform, and this has promoted traction and has turned to control.Back group of contiguous idle pulley 23 contacts to guarantee crawler belt with 24 similar biasings.

Before two idle pulleys 22 of group and two adjacent interior idle pulley 24 pivots fixing around

framework

26, and 86 adjustable by rocking arm 78 upper spring spares, elasticity is default is resiliently biased.Idle pulley 23 and two adjacent interior idle pulley 24 independent pivots are fixing around framework 26 after two, and pass through in abutting connection with biasing member 86 biasings of the independent adjusting of rocking arm 78.Along with mating surfaces 8 negotiate terraiies, preceding group and back group

idle pulley

22,24 and 23,24 cooperations are with guiding crawler belt 6 adaptation to the grounds.

With idle pulley 22-24 and drive wheel 28 be installed to drive framework 26 mode as seen from Figure 3.Vertical lift spare 42 and 44 before and after framework 26 provides.Upper and lower crossbeam 46 is connected

lifters

42 and 44 with 48.Idle pulley 22-24 is fixed on the lower beam 48, and drive wheel 28 is fixed on the upper beam 46.The physical construction of organizing

idle pulley

22,24 and 24,23 before and after each is identical with hanging, and organizes a side of

wheel

22,24 before only describing hereinafter, but should be appreciated that for back group wheel be identical.

Front idler wheel 22 is fixed on the bottom of lifters 42 by outer cantilever 50 and pivot pin 52.Zerk fitting 51 is fixed on the pivot pin 52, so that pivot is lubricated.Pivot pin 52 extends through hole 54 on the external swing arm 56 and the hole 60 on the lifters 42, and wherein swing arm 56 extends from sleeve member 58.Swing arm 56 is fixed on the side of lifters 42.Wheel shaft 62 extends through the hole 64 of sleeve member 58, sealing member 57 and bearing 59, and support front idler wheel 22.

Interior idle pulley 24 is fixed on the bottom of lifters 42 by cantilever 66 and another pivot pin 52 that is equipped with zerk fitting 51.Pivot pin 52 extends through the hole 70 on a pair of swing arm 72 and aims at hole 76 on the lifters 42, and wherein swing arm 72 extends from the sleeve member 74 of cantilever 66.Swing arm 72 is fixed on the side of lifters 42.Wheel shaft 62 extends through the hole 77 of sleeve member 74, sealing member 57 and bearing 59, and idle pulley 24 in supporting.

Install in the hole 47 that pitman arm or rocking arm 78 pass on the crossbeam 48, and be fixed between

swing arm

56 and 70 and be fixed to swing

arm

56 and 70, has the pivot pin 52 that does not comprise zerk fitting.Pivot pin 52 specifically be fixed on

swing arm

56 and 72

hole

82 and 84 and the

hole

79 and 81 of rocking arm 78 between.Be applied to respect to the power on framework 26 arbitrary paired

idle pulleys

22 or 24 and be delivered on the idle pulley group of adjacency by rocking arm 78.

Spring 86 is installed in the hole 88 of lifters 42, and is comprised between the seat 90 of the end cap 92 that is fixed to hole 88 and pitman arm 78.The tension of spring 86 or the preload condition of pressurized are determined by the bolt 93 that extends through lifters 42 and contact jaw cover piece 92.Therefore according to the compression of spring 86 preload condition or any motion that stretches and stop or help

idle pulley

22,23 or 24.When vertical profile of crawler belt 6 or profile variations during with adaptation to the ground, track tension does not change with the motion that idle pulley hangs.

Fig. 7 and Fig. 8 show the general alternative of two setover

idle pulley group

22,24 in groups and 23,34 respectively in schematic form.Fig. 7 is illustrated in shown in the preferred embodiment of assembly 2 and uses and in conjunction with Fig. 3, the compression of 5 and 6 springs of discussing 86 is installed.Bottle screw or anchoring piece 87 were in the installation of the spring 86 of extended state in the middle of Fig. 8 showed relatively.The relative hooked end independent regulation of bottle screw 87 stretches and elastic biasing with the static state that changes spring 86 and front and back

idle pulley group

22,24 and 23,34.

Continuation is referring to Fig. 3 and referring to schematic Figure 11, and the tension force of crawler belt 6 relative idle pulley 22-23 and drive wheel 28 is by on the hole 94 that drive wheel 28 off-centre is fixed to upper beam 46 and determine respectively.Track tension is especially by rotating offset assembly 100 to determine in hole 94.

Assembly 100 comprises wheel hub 101, and it passes sealing member 103 and installs and be fixed on the drive sprocket 28 by fastener 119.Bearing shell 104 has hole 117, and it is holed to provide eccentric surface by off-centre, and extends and place hole 94 from wheel hub 101.Independent cylindrical mandrel bearing 106 is fixed in the hole 117 of shell 104 by snap ring 105.Shell 104 and spindle bearing 106 are fixed on the wheel hub 101 by packing ring 107 and nut 109.Lid or locking cover 99 and sealing member 97 are fixed on the end of shell 104 by a plurality of fasteners 15.

In case unscrew the vehicle frame fastener 15 on the flange 91 and use spanner 95 rotatable covers 99, shell 104 rotates and make drive sprocket around spindle bearing 106 in hole 94, wherein said flange 91 is sagging and be positioned at and cover 99 belows from the hole 94 of framework 26.According to relatively rotating of bearing shell 104, shell 104 relative spindle bearing 106 and hole 94 eccentric rotary wherein, drive sprocket 28 tensions or loosen the tension force of crawler belt 6.In case determined preferred track tension, fastener 15 is tightened to draw

framework

26 and 94 is impaction state with bearing shell 104 in the hole, to adjust the tension force of crawler belt 6.Should be appreciated that and to use multiple other securing devices with fixed type bearing shell 104 allocation really.

Track assembly 2 is fixed on the vehicle by available lug bolt usually, and wherein said lug bolt extends and is fixed on the hole 108 of wheel hub 101 from wheel.Because therefore assembly 2 and a large amount of vehicle compatibilities provide a kind of special adapter plate 110, so that assembly 2 is mounted on every kind of vehicle.Current preferred adapter plate 110 has been shown among Figure 12, and it is installed in wheel hub 101 and vehicle driveline, normally reequips between the driven or non-driven wheel hub of vehicle.Adapter plate 110 is fixed on the wheel hub 101 by a plurality of fasteners 113.The hole 112 of arbitrary number can be provided at adapter plate 110, and groove 116 and/or convex surfaces 118 or recess 120 are with the specific installation geometric configuration of corresponding vehicle.Adapter plate 110 especially is designed to be mounted to several different band ear snail pin devices of specifying ATV, and the outstanding braking of permission detects lid and other is gapped in abutting connection with vehicle part.

Refer again to Fig. 3 and Figure 13, track assembly 2 is fixed on separately on the vehicle by reversing control assembly 122, with relatively rotating of restriction 2 pairs of vehicles of track assembly.A pair of connecting arm 121 and 123 or improved connecting arm 124 and 126 be fixed on the assembly 122.Arm 123 and 124 is fixed on the pair of brackets 138 by fastener 125.Connect support 138 and include elasticity or elastic body shim 140.The cooperation that arm 121 and 126 is fixed to vehicle respectively turn to static surface on.

Suitable one is extended and is fixed on the driving framework 26 with screw bolt and

nut fastener

141 and 143 two holes 144 of torque tube 142 on lifters 42 and 44.Torque tube 142 also can be fixed on

lifters

42 and 44 by multiple other fasteners.For example, pipe 142 can comprise spring pin or other projection, coupling hole or recess that its block button hole 44 provides.

The outside of torque tube 142 is nested in the pad 140.The enlarging outer end of torque tube 142 remains on torque tube 142 in the support 138 with state of equilibrium.The cw of torque tube 142 and rotating counterclockwise by pad 140 protection, thus prevent contacting of track assembly 2 and vehicle.

When the connecting arm 124 of Figure 13 and 126 is used for track assembly 2 is connected to vehicle, stop flange 128 and 130 is used for the maximum rotation of restriction track assembly 2.In other words, stop flange 128 and 130 restricted arm 126 are relative to the surface 132 of arm 124 and 134 rotate.When arm 124 and 126 normal rotation, flange 128 and 130 mating surfacess 132 with 134 to prevent assembly 2 relative components, 122 inordinate rotation and to contact vehicle.

When arm 126 is connected to the surface that turns to of vehicle, tie rod ball for example, improvement lock connector 150 shown in Figure 14 is fixed on the arm 126.Adaptor union 150 prevents that key from turning to may becoming flexible of connection.Adaptor union 150 has shell 152, and it has the locking bar 154 that is welded on the shell 152.Shell 152 remains on the end that is connected to the lip-deep spindle arm 155 of Vehicular turn separately with the tie rod ball of vehicle.Arranging of shell 152 and arm 154 can change, to adapt to dissimilar steering track rods.

Shell 152 fastener between the hole 146 of the hole 156 by lock arm 154 and connecting arm 126 usually is fixed on the vehicle.Vehicle tie rod ball (not shown) is fixing by the hole 158 in the shell 152 and the hole in the Vehicular turn arm 155 160, and wherein said hole 158 can be hexagon and/or comprise the flat surface that aligns with the flat surface of tie rod ball.

After separately fixedly the fixing screw 162 on the locking bar 154 was guided to shell 152 with the surface 164 of contact arm 155 and with arm 154 and tie rod ball, described connection was locked or prevent from becoming flexible.One nut (not shown) is fixed to pull bar shell 152 separately.Also another stay bolt (not shown) can be fixed between the vehicle hanging parts of shell 152 and adjacency, to help to support spindle arm 155.

Figure 15 to 17 shows another kind of improved track assembly 2, and it comprises that the spring of the load-carrying capacity that strengthens assembly 2 hangs 180.Hang 180 and stablize and strain the motion of interior idle pulley 24, and the servo-actuated action of complementary contours of front and back

idle pulley group

22,24 and 24,23 is extended to the middle section of track assembly 2.Assembly 180 especially responds the motion of interior idle pulley 24 and the counteraction biasing is provided.In addition, the stretching of suspension 180 and compressive state wherein illustrate spring 181 respectively and are in its stretching and compressive state respectively shown in Figure 15 and Figure 16.

Assembly 180 comprises a pair of rocking arm 182 and 184.Each arm 182 and an end of 184 by pivotal support on the base plate 186 of support spring 181.Show base plate 186 and be in alternating state, base plate 186 reduces when spring is stretched, and then raises when spring 181 is compressed.The opposite end pivotal support of rocking arm 182 is to cantilever 187.Cantilever 187 is similar to cantilever 66, and except changing to provide a pair of extra hole 188, pivot 190 extends and catch the opposite end of rocking arm 182 by described hole 188.The opposite end of rocking arm 184 similarly pivotal support to cantilever 66 similar cantilevers 192 on, and change to provide pair of holes 188, the opposite end of described hole 188 supporting pivots 190 and rocking arm 184 equally.

Cantilever

187 and 192 supports interior idle pulley 24 and is rotated by the hole 194 of framework 26.

Cantilever

187 and 192 is connected to the hole 196 of rocking arm 78.With rocking arm 78 combinations, spring suspension 180 and other rocking

arm

182 and 184 have enlarged the profile of

idle pulley group

22,24 and 23,24 with kinetic force.In other words, pointed as the alternating state of base plate 186 and rocking

arm

182 and 184, when assembly 180 rose and descends,

cantilever

187 and 192 guiding idle pulleys 24

rotated.Cantilever

187 and 192 rotation are contended with as mentioned above by the response action of front and back rocking arm 78 again.

Generally speaking,

cantilever

187 and 192, rocking arm 182,184 and 78 and the mutual action of spring 181 continue to make crawler belt 4 can closely follow terrain profile.Assembly 180 has also strengthened the action of the middle section of crawler belt 6, and has increased the load-carrying capacity of assembly 2.

Although shown assembly 180 is in the middle of the front and back idle pulley hangs, other zone and/or a plurality of assemblies 180 that similar suspension assembly 180 can be connected crawler belt can be staggered into longer track assembly.In this respect, Figure 17 shows another kind of the change, and wherein base plate 186 is changed to support another idle pulley 24.Idle pulley 24 passive being connected on the base plate 186 are to rise and to descend with base plate 186.

Although the present invention is described in conjunction with a plurality of preferred structures and considered its improvement and alternative, other structure also can be expected for a person skilled in the art.Also be to be understood that, some features of selecting in the aforementioned feature, for example, the idle pulley of independent biasing hangs, the drive sprocket of shaping, eccentric tightening device, the twist connector that restriction is rotated turns to connecting arm, and/or central spring hangs, can use separately or with the various combination setting, so that multiple improved track assembly to be provided.Therefore above stated specification is appreciated that all embodiment within the spirit and scope that comprise claims.

Claims

1. endless track assembly that is used for vehicle comprises:

A) framework, it comprises drive sprocket;

B) first and second cantilevers fix to rotate around described framework pivot, and axle of each cantilever support;

C) a plurality of idle pulleys, wherein first idle pulley is fixed on the axle of described first cantilever, and second idle pulley is fixed on the axle of described second cantilever, wherein first connecting arm is connected between described first and second cantilevers, and wherein first elastic component motion of described first connecting arm that is fixed to setover, so that the motion of the pivot of any one of described first and second cantilevers is stoped by described elastic component elasticity or helps, another of described first and second cantilevers then attempted to follow;

D) strut member, described strut member is connected to described framework by second elastic component, and is connected to described second cantilever by second connecting arm; With

E) endless track around described drive sprocket and the running of described a plurality of idle pulley, and responds the pivot motion of described idle pulley, so as adaptively crooked with cooperate terrain profile and

F) eccentric linkage is connected to described sprocket wheel, makes described sprocket wheel to be operated to change track tension with respect to framework.

2. track assembly according to claim 1 comprises for the default tension force that changes described first elastic component or the device of pressure.

3. endless track assembly that is used for vehicle comprises:

A) framework, it comprises drive sprocket;

C) a plurality of idle pulleys, wherein first idle pulley is fixed to the axle of first cantilever, and second idle pulley is fixed to the axle of second cantilever, wherein first connecting arm is connected between first and second cantilevers, and comprise first spring installation be fixed to setover first connecting arm motion and be used for changing the default tension force of first spring installation or the device of pressure, so that the motion of the pivot of any one of first and second cantilevers is stoped by the described first spring installation elasticity or helps, another of first and second cantilevers then attempted to follow;

D) strut member, described strut member is connected to framework by second spring installation, and is connected to described second cantilever by second connecting arm; With

E) endless track, around drive sprocket and the running of a plurality of idle pulley, and the pivot motion of response idle pulley, so that crooked to cooperate terrain profile adaptively.

4. track assembly according to claim 3, wherein said first and second elastic components comprise spring.

5. track assembly according to claim 3 comprises that eccentric linkage is connected to described sprocket wheel, and wherein said sprocket wheel can be operated to change track tension.

6. track assembly according to claim 5, wherein said sprocket wheel is suitable for carrying out optionally eccentric rotary by instrument.

7. track assembly according to claim 3 comprises torsion device, and described torsion device is used for described track assembly is biased to balance position, and limits described track assembly with respect to the rotation of described vehicle, contacts to prevent both.

8. track assembly according to claim 7, wherein said torsion device comprises that at least one elastomer element is connected to described framework, and the cw and the left-hand revolution that resist with respect to described balance position and first and second retainers with the described framework of flexiblely setovering move.

9. track assembly according to claim 3, the shell that wherein is connected to described drive sprocket is fixed in the hole of described framework, so that the eccentric rotary of described shell in described hole changes the tension force of described crawler belt.

10. track assembly according to claim 3 comprises adapter plate, and it is fixed on the described drive sprocket, and is configured to be connected on a plurality of different vehicle fittings.

11. track assembly according to claim 3, wherein said crawler belt comprises a plurality of lugs, its inside face from described crawler belt is given prominence at the edge to the periphery along the lateral longitudinal of described crawler belt, and contact the adjacent outer exposed surface of a plurality of described idle pulleys, wherein each described lug comprises front surface and rear surface, when they during from described inside face to the flat top surface elevation, each shrinks gradually towards another, and wherein the side surface in abutting connection with described top and front surface and rear surface outwards shrinks gradually towards a described peripheral edge when it descends from described top surface, and wherein said lug guiding chip upwards and is outwards discharged from the inner space of described crawler belt.

12. track assembly according to claim 3, comprise a plurality of lugs, it is from the inside face protuberance of described crawler belt, wherein said idle pulley is made of plastics, wherein the circumferential surface of each described idle pulley comprises the rubber anchor ring that contacts described inside face, and rotates in the longitudinal slot that forms between by described a plurality of lugs of the not coated side of wherein said idle pulley.

13. track assembly according to claim 3, wherein each the peripheral edge from the outstanding a plurality of spokes of described drive sprocket has the sidewall that is partly formed by the arcuate surfaces that is right after, described surface portion alignment is also rotated in inverted V-arrangement longitudinal slot, described V-arrangement longitudinal slot by and between the adjacent lugs of a plurality of inside face protuberances from described crawler belt, form, wherein said sidewall guiding chip is away from described groove.

14. track assembly according to claim 3 comprises connector housing, it is connected to the tumbler of described vehicle, and wherein said shell comprises fastener, is installed on the described shell and compresses described shell to draw described tumbler.

15. track assembly according to claim 3, wherein an idle pulley is connected to rotate at described strut member, and wherein said second elastic component comprises spring.

16. an endless track assembly comprises:

A) framework, it comprises drive sprocket;

B) the first, second, third and the 4th cantilever fixes to rotate around described framework pivot, and axle of each cantilever support;

C) a plurality of idle pulleys, wherein first and second idle pulleys are fixed on the axle of described first and second cantilevers, and third and fourth idle pulley is fixed on the axle of described third and fourth cantilever, wherein first connecting arm is connected between described first and second cantilevers, and second connecting arm is connected between described third and fourth cantilever, wherein first and second elastic components motion of described first and second connecting arms of setovering, so that described first, second, the pivot of any motion is flexibly stoped by described first and second elastic components or helps in third and fourth cantilever, and described first, second, other cantilever of third and fourth cantilever is then attempted to follow;

D) strut member, described strut member is connected on the described framework by the 3rd elastic component, and is connected on the described second and the 3rd cantilever by third and fourth connecting arm; With

E) around the endless track of described drive sprocket and the running of described a plurality of idle pulley, the pivot of the wherein said first, second, third and the 4th cantilever rotates follows topographic inequality, with vertical profile of changing described crawler belt to cooperate described fluctuating.

17. track assembly according to claim 16, wherein said first, second, and third elastic component comprises spring.

18. track assembly according to claim 16 comprises that first and second regulating controls are connected to described first and second elastic components, to determine default tension force or pressure at described first and second connecting arms.

19. track assembly according to claim 16, wherein said sprocket wheel can be operated to change the tension force of described crawler belt.

20. track assembly according to claim 19 comprises eccentric linkage, is connected to described sprocket wheel and is suitable for rotating described sprocket wheel in the inner space of described crawler belt.

21. track assembly according to claim 16 comprises torsion device, described torsion device is used for described track assembly is biased to balance position, and limits described track assembly relative to the rotating of vehicle, and contacts to prevent both.

22. track assembly according to claim 21, wherein said torsion device comprises linkage, it comprises elastomer element, described elastomer element is connected to described framework, resists rotatablely moving of the spacing cw of relative equilibrium position and at least one stop and conter clockwise with the described framework of flexibly setovering.

23. track assembly according to claim 16, wherein said the 3rd elastic component comprises spring.

24. an endless track assembly that is used for vehicle comprises:

A) framework, it comprises drive sprocket;

C) a plurality of idle pulleys, wherein first idle pulley is fixed on the axle of first cantilever, and second idle pulley is fixed on the axle of second cantilever, wherein first connecting arm is connected between first and second cantilevers, and wherein first elastic component motion of first connecting arm that is fixed to setover, so that the motion of the pivot of any one in first and second cantilevers is stoped by described elastic component elasticity or helps, another of first and second cantilevers then attempted to follow;

D) strut member, described strut member is connected to framework by second elastic component, and is connected to second cantilever by second connecting arm;

E) endless track turns round around described drive sprocket and a plurality of idle pulley, and responds the pivot motion of described idle pulley, so that crooked to cooperate terrain profile adaptively; With

F) torsion device, it comprises that a plurality of elastomer element are connected to framework, so that the described framework of flexiblely setovering is spacing with respect to first and second stop and the cw of balance position and left-hand revolution motion.

25. an endless track assembly that is used for vehicle comprises:

A) framework, it comprises drive sprocket;

B) first and second cantilevers fix to rotate around the framework pivot, and axle of each cantilever support;

C) a plurality of idle pulleys, wherein first idle pulley is fixed to the axle of first cantilever, and second idle pulley is fixed to the axle of second cantilever, wherein first connecting arm is connected between first and second cantilevers, and wherein first spring installation motion of first connecting arm that is fixed to setover, so that the motion of the pivot of any one in first and second cantilevers is stoped by the first spring installation elasticity or helps, another of first and second cantilevers then attempted to follow;

D) strut member, described strut member is connected to framework by second spring installation, and is connected to described second cantilever by second connecting arm;

F) shell that wherein is connected to drive sprocket is fixed in the hole of framework, so that the eccentric rotary of described shell in described hole operated described sprocket wheel to change the tension force of crawler belt.

26. an endless track assembly that is used for vehicle comprises:

A) framework, it comprises drive sprocket;

C) a plurality of idle pulleys, wherein first idle pulley is fixed to the axle of first cantilever, and second idle pulley is fixed to the axle of second cantilever, wherein first connecting arm is connected between first and second cantilevers, and wherein first elastic component motion of first connecting arm that is fixed to setover, so that the motion of the pivot of any one in first and second cantilevers is stoped by described elastic component elasticity or helps, another of first and second cantilevers then attempted to follow;

D) strut member, described strut member is connected to framework by second elastic component, and is connected to second cantilever by second connecting arm; With

E) endless track, around described drive sprocket and the running of a plurality of idle pulley, and comprise a plurality of lugs, described lug is outstanding to the neighboring along the lateral longitudinal of crawler belt from the inside face of crawler belt, in order to contact the adjacently situated surfaces of a plurality of idle pulleys, wherein shrink when from inside face to the flat top surface elevation towards each other gradually the front surface of each lug and rear surface, wherein the side surface in abutting connection with described top and front surface and rear surface shrinks gradually towards a neighboring when it descends from described top surface, so that along with the pivot motion of described idle pulley makes crawler belt crooked to cooperate terrain profile adaptively, described lug guiding chip is outwards discharged from the inner space of crawler belt.

27. an endless track assembly that is used for vehicle comprises:

A) framework, it comprises drive sprocket;

C) a plurality of idle pulleys, wherein idle pulley is made of and supports the rubber anchor ring of periphery rolling surface plastics, wherein first idle pulley is fixed to the axle of first cantilever, and second idle pulley is fixed to the axle of second cantilever, wherein first connecting arm is connected between first and second cantilevers, and wherein first spring installation motion of first connecting arm that is fixed to setover, so that the motion of the pivot of any one in first and second cantilevers is stoped by the described first spring installation elasticity or helps, another of first and second cantilevers then attempted to follow;

D) strut member, described strut member is connected to framework by second spring installation, and is connected to described second cantilever by second connecting arm; With;

E) endless track, around described drive sprocket and the running of a plurality of idle pulley, and comprise the lug at a plurality of intervals, described lug is outstanding from the inside face of crawler belt, to form longitudinal slot, wherein the not coated side of idle pulley and rolling surface are along with the pivot motion of idle pulley makes crawler belt bending adaptively rotate to cooperate terrain profile.

28. an endless track assembly that is used for vehicle comprises:

A) framework, it comprises drive sprocket;

C) a plurality of idle pulleys, wherein first idle pulley is fixed to the axle of first cantilever, and second idle pulley is fixed to the axle of second cantilever, wherein first connecting arm is connected between first and second cantilevers, and comprise spring installation be fixed the to setover motion of first connecting arm, so that the motion of the pivot of any one in first and second cantilevers is stoped by described spring installation elasticity or helps, another of first and second cantilevers then attempted to follow;

E) endless track, around described drive sprocket and the running of a plurality of idle pulley, and form inverted cardinal principle V-arrangement longitudinal slot, described groove is formed by a plurality of lugs with interval of sidewall, described lug outwards opens when the inside face from crawler belt swells, wherein from sprocket wheel to around the arcuate surfaces that the is right after part of a plurality of spokes of stretching out in the V-arrangement longitudinal slot, rotate, in order to make crawler belt crooked when cooperating terrain profile adaptively in the motion of idle pulley pivot, the guiding chip leaves described groove and a plurality of idle pulley.

29. an endless track assembly that is used for vehicle comprises:

A) framework, it comprises drive sprocket;

B) connector housing, described connector housing is connected to the tumbler of described vehicle, and wherein said shell comprises fastener, and described fastener is installed on the described shell and compresses described shell to draw described tumbler;

C) first and second cantilevers fix to rotate around the framework pivot, and axle of each cantilever support;

D) a plurality of idle pulleys, wherein first idle pulley is fixed to the axle of first cantilever, and second idle pulley is fixed to the axle of second cantilever, wherein first connecting arm is connected between first and second cantilevers, and wherein first elastic component motion of first connecting arm that is fixed to setover, so that the motion of the pivot of any one in first and second cantilevers is stoped by described elastic component elasticity or helps, another of first and second cantilevers then attempted to follow;

E) strut member, described strut member is connected to framework by second elastic component, and is connected to second cantilever by second connecting arm; With

F) endless track turns round around described drive sprocket and a plurality of idle pulley, and responds the pivot motion of described idle pulley, so that crooked to cooperate terrain profile adaptively.

30. an endless track assembly comprises:

A) framework, it comprises drive sprocket and a plurality of idle pulley that is fixed on the described framework;

B) endless track, it is around described drive sprocket and described a plurality of idle pulley running;

C) support, described support fixation is to described drive sprocket and comprise linkage, and described linkage connects described support in order to handle described sprocket wheel prejudicially with respect to described framework, so that track tension is determined in the motion of described support and sprocket wheel; With

D) bottom parts, be connected on the described framework by elastic component, and wherein the described bottom parts of the first and second connecting arm pivotal joints is to the first and second contiguous cantilevers, support first and second idle pulleys, wherein said first and second idle pulleys are resiliently biased so that described crawler belt is adaptive curved to cooperate the terrain profile that changes.

31. track assembly according to claim 30, wherein said elastic component comprises spring.

32. track assembly according to claim 30 comprises that idle pulley connects to rotate at described bottom parts.