CN208647001U - A kind of shock reducing type track driving mechanism of adjustable terrain clearance - Google Patents
A kind of shock reducing type track driving mechanism of adjustable terrain clearance Download PDFInfo
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- CN208647001U CN208647001U CN201821300271.9U CN201821300271U CN208647001U CN 208647001 U CN208647001 U CN 208647001U CN 201821300271 U CN201821300271 U CN 201821300271U CN 208647001 U CN208647001 U CN 208647001U
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- 230000035939 shock Effects 0.000 title claims abstract description 19
- 238000013016 damping Methods 0.000 claims abstract description 40
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 1
- 230000033001 locomotion Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 8
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- 230000009471 action Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 9
- 230000008901 benefit Effects 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 2
- 241000219098 Parthenocissus Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000010405 clearance mechanism Effects 0.000 description 1
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- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
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Abstract
A kind of shock reducing type track driving mechanism of adjustable terrain clearance, wherein, chassis assembly one end of appearing on the stage is provided with driving wheel, the chassis assembly other end of appearing on the stage is provided with the track tension adjustor for connecting with rear support wheel assembly, load-bearing wheel assembly is arranged on leave from office chassis assembly, damper, hydraulic pressure cylinder assembly, bogie frame bracket assembly, which are separately positioned on, appears on the stage between chassis assembly and leave from office chassis assembly, and crawler belt is sleeved on driving wheel, rear support wheel assembly and load-bearing wheel assembly；In track driving mechanism lifting process, crawler belt ride-height changes, and crawler belt encirclement perimeter is constant, and the real-time adjust automatically in rear support wheel position can effectively prevent crawler belt to fall off；Vehicle frame of appearing on the stage is driven to go up and down with lower bogie frame using hydraulic cylinder lifting simultaneously, the relative position of carrying roller and lower bogie frame is constant, and relative motion component is few, and height of crawler adjusts simple, high reliablity；Hydraulic cylinder spring is mounted between hydraulic cylinder and lower bogie frame, and arbitrary height is adjusted in range has vibration-damping function.
Description
Technical field
The utility model relates to track drive technical field more particularly to a kind of shock reducing type crawler belts of adjustable terrain clearance
Driving mechanism.
Background technique
Endless-track vehicle contact area is big, and grounding pressure is small, can work in than relatively rugged environment, but endless-track vehicle
Road clearance and height of C.G. are very big with safety effects to its passability, and the road clearance is low, and the passability of endless-track vehicle is deteriorated,
The advantage of endless-track vehicle cannot be given full play to；Road clearance is big, then it is high to easily lead to endless-track vehicle position of centre of gravity, in hillside fields traveling or
Under the situations such as fast steering, it is easy to happen rollover, and then influence traffic safety.Simultaneously because the structure of crawler belt driving system is multiple
Miscellaneous, endless-track vehicle mainly uses the direct-connected kind of drive of drive shaft, crawler belt and the directly not set suspension of endless-track vehicle, so that creeper truck
Height adjustment difficulty, even with the endless-track vehicle of hydraulic-driven, also due to the quality of crawler belt driving system is very big, setting
Unsprung mass is high after suspension, and then causes transmission effect poor, but elasticity or semi-rigid bullet are arranged inside crawler belt driving system
Property device, it is also difficult to realize height adjustment.For being provided with the endless-track vehicle of resilient suspension, by the way that elastic element is arranged, although
The comfort for improving seating, it is larger in itself car weight and using metal track engineering machinery or panzer on, reliability compared with
It is good, but on relatively light in itself car weight and farmland operation vehicle using rubber belt track, the crawler belt driving system of elastic element is set
It then easilys lead to crawler belt and slips failure.
Utility model content
The technical issues of the utility model is solved is to provide a kind of shock reducing type track drive of adjustable terrain clearance
Mechanism, to solve the disadvantage in above-mentioned background technique.
The technical problem solved by the utility model is implemented by the following technical solutions:
A kind of shock reducing type track driving mechanism of adjustable terrain clearance, including crawler belt, driving wheel, chassis assembly of appearing on the stage,
Damper, hydraulic cylinder, track tension adjustor, rear support wheel assembly, bogie frame bracket assembly, leave from office chassis assembly and carrying roller group
Part, wherein chassis assembly one end of appearing on the stage is provided with driving wheel, the chassis assembly other end of appearing on the stage be provided with for rear support wheel group
The track tension adjustor of part connection, load-bearing wheel assembly are arranged on leave from office chassis assembly, and the setting of bogie frame bracket assembly is being appeared on the stage
Between chassis assembly and leave from office chassis assembly, one end of damper and hydraulic pressure cylinder assembly is connect with chassis assembly of appearing on the stage, damper
It is connect with the other end of hydraulic pressure cylinder assembly with leave from office chassis assembly, crawler belt is sleeved on driving wheel, rear support wheel assembly and carrying roller
On component；Each section specific structure is as follows:
Chassis assembly of appearing on the stage includes driving wheel bearing block, upper bogie frame support frame bearing block, upper bogie frame support base, appears on the stage
Vehicle frame, track tension adjustor bracket and balance pivot, upper bogie frame one end are provided with the driving wheel bearing block for installing driving wheel,
There are two the track tension adjustor brackets for installing track tension adjustor for upper bogie frame other end setting, for installing bogie frame support
The upper trolley in upper bogie frame two sides, for mounting shock absorber and hydraulic cylinder is arranged in the upper bogie frame support frame bearing block of frame component
Frame support base, which is arranged in frame interior of appearing on the stage, while on upper bogie frame, is provided with balance pivot；
Leave from office chassis assembly includes lower bogie frame support frame bearing block, load-bearing wheel shaft, lower bogie frame support base, lower bogie frame
And lower bogie frame lever bracket, wherein the lower bogie frame support frame bearing block for installing bogie frame bracket assembly is arranged under
Bogie frame two sides, load-bearing wheel shaft are arranged on lower bogie frame, and penetrate through lower bogie frame；For under mounting shock absorber and hydraulic cylinder
Bogie frame support base, lower bogie frame lever bracket are arranged above lower bogie frame；
Bogie frame bracket assembly includes support frame, upper support hubcap, upper support shaft and lower support shaft, support frame one end
It is provided with support shaft, the support frame other end is provided with lower support shaft, and upper support shaft left and right ends structure is identical about support frame
Symmetrically, lower support shaft left and right ends structure is identical symmetrical about support frame, and upper support shaft is mounted on bogie frame support frame bearing
On seat, upper support shaft both ends are fixed by upper support hubcap, and lower support shaft is mounted on lower bogie frame support frame bearing block, under
Support shaft both ends are fixed by snap ring；
Load-bearing wheel assembly includes carrying roller and carrying roller end cap, and the carrying roller connecting with bogie frame bracket assembly is mounted on
In lower support shaft, the carrying roller not connecting with bogie frame bracket assembly is mounted on load-bearing wheel shaft, and carrying roller end cap is mounted on
On carrying roller；
Track tension adjustor includes a pair of rear support wheel connecting rod and spring for adjusting lever and connecting with adjustment lever, adjusts thick stick
Bar is provided on adjustment lever that be used to support rear support wheel connecting rod pin relatively sliding about the setting symmetrical above and below of upper bogie frame
The second sliding slot of dynamic first sliding groove sliding opposite with lower bogie frame pin is used to support, adjustment lever pass through lower bogie frame pin
It is connect with lower bogie frame lever bracket, adjustment lever is mounted on balance pivot by balance pivot pin, after adjustment lever passes through
Support wheel connecting rod pin is connect with rear support wheel connecting rod, while rear support wheel connecting rod front end being provided with spring, spring one end with
Lever contact is adjusted, the other end is contacted with track tension adjustor bracket, and spring is in compressive state；
Rear support wheel assembly includes rear support axle bracket, rear support wheel and rear support wheel shaft, rear support axle bracket with
The connection of rear support wheel connecting rod, rear support wheel are fixed on rear support wheel shaft, and rear support wheel shaft is fixed on rear support axle bracket；
In hydraulic pressure cylinder assembly, be provided with for damper collective effect with the damping spring of effective attenuation vibrational energy.
In the present invention, crawler belt includes crawler belt limiting tooth, track body and ground connection sliding tooth, setting in track body
There is the crawler belt limiting tooth for limiting track body freedom degree by driving wheel, rear support wheel assembly and load-bearing wheel assembly, carries out
Ground connection sliding tooth is provided with outside band main body.
In the present invention, upper bogie frame is the channel steel for opening porose square steel or U-shaped structure on one side.
In the present invention, lower bogie frame is the channel steel for opening porose square steel or U-shaped structure on one side.
In the present invention, the annular groove for bearing positioning is provided in lower bogie frame support frame bearing block.
In the present invention, upper support shaft seals bearing by deep-groove ball and is mounted on upper bogie frame support frame bearing block
On, lower support shaft seals bearing by deep-groove ball and is mounted on lower bogie frame support frame bearing block.
In the present invention, the carrying roller connecting with bogie frame bracket assembly seals bearing by deep-groove ball and is mounted on
In lower support shaft.
In the present invention, there are three the carrying roller settings connecting with bogie frame bracket assembly.
In the present invention, there are two the carrying roller settings not connecting with bogie frame bracket assembly.
In the present invention, load-bearing wheel shaft left and right ends structure is identical symmetrical about lower bogie frame.
In the present invention, hydraulic pressure cylinder assembly further includes piston rod, hydraulic cylinder, damping spring footstock and damping spring
Pedestal, piston rod upper end are mounted in bogie frame support base, and damping spring pedestal is mounted on lower bogie frame support base, damping
Spring footstock is mounted on hydraulic cylinder, and damping spring is mounted between damping spring footstock and damping spring pedestal.
In the present invention, dustband is installed between rear support axle bracket and rear support wheel.
The utility model has the advantages that
1) in the utility model endless-track vehicle lifting process, track driving mechanism height changes, and crawler belt surrounds perimeter
It is constant, crawler belt can be effectively prevent to fall off；
2) the utility model drives appear on the stage vehicle frame and the lifting of lower bogie frame, carrying roller and lower bogie frame using hydraulic cylinder lifting
Relative position it is constant, relative motion component is few, and height of crawler adjusts simple, high reliablity；
3) when the utility model crawler lifting, the real-time adjust automatically in the position of rear support wheel, easy to operate, job stability
By force.
4) hydraulic cylinder spring is mounted between hydraulic cylinder and lower bogie frame in the utility model, is adjusted and is appointed in range
Meaning height has vibration-damping function.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the preferred embodiment of the utility model.
Fig. 2 is the caterpillar belt structure schematic diagram in the preferred embodiment of the utility model.
Fig. 3 is the chassis assembly structural schematic diagram of appearing on the stage in the preferred embodiment of the utility model.
Fig. 4 is the leave from office chassis assembly structural schematic diagram in the preferred embodiment of the utility model.
Fig. 5 is cross-sectional view at A-A in Fig. 1.
Fig. 6 is cross-sectional view at B-B in Fig. 1.
Fig. 7 is cross-sectional view at C-C in Fig. 1.
Fig. 8 is the track driving mechanism propradation schematic diagram in the preferred embodiment of the utility model.
Fig. 9 is that the track driving mechanism in the preferred embodiment of the utility model declines status diagram.
Figure 10 is the upper axle assemble supporting schematic diagram in the preferred embodiment of the utility model.
Figure 11 is the lower axle assemble supporting schematic diagram in the preferred embodiment of the utility model.
Figure 12 is the hydraulic pressure cylinder assembly structural schematic diagram in the preferred embodiment of the utility model.
Specific embodiment
In order to be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, under
Face combines and is specifically illustrating, and the utility model is further described.
Referring to a kind of shock reducing type track driving mechanism of adjustable terrain clearance of Fig. 1~Figure 12, including crawler belt 1, driving
Take turns 2, chassis assembly 3 of appearing on the stage, damper 4, hydraulic pressure cylinder assembly 5, track tension adjustor 6, rear support wheel assembly 7, bogie frame support frame
Component 8, leave from office chassis assembly 9 and load-bearing wheel assembly 10, wherein driving wheel 2 is arranged in 3 one end of chassis assembly of appearing on the stage, upper trolley
3 other end of frame component is provided with the track tension adjustor 6 for connecting with rear support wheel assembly 7, and load-bearing wheel assembly 10 is mounted on down
On bogie frame component 9, and it is provided with bogie frame bracket assembly 8 between chassis assembly 3 and leave from office chassis assembly 9 appearing on the stage, subtracts
One end of shake device 4 and hydraulic pressure cylinder assembly 5 is connect with chassis assembly 3 of appearing on the stage, and the other end of damper 4 and hydraulic pressure cylinder assembly 5 is under
Bogie frame component 9 connects, and crawler belt 1 is sleeved on driving wheel 2, rear support wheel assembly 7 and load-bearing wheel assembly 10；Each section is specifically tied
Structure is as follows:
Crawler belt 1 includes crawler belt limiting tooth 11, track body 12 and ground connection sliding tooth 13, the crawler belt being arranged in track body 12
Limiting tooth 11 limits moving left and right for track body 12 by driving wheel 2, rear support wheel assembly 6 and load-bearing wheel assembly 9, prevents from carrying out
Band 1 falls off, and ground connection sliding tooth 13 is provided with outside track body 12；
Chassis assembly 3 of appearing on the stage includes driving wheel bearing block 31, upper bogie frame support frame bearing block 32, upper bogie frame support base
33, upper bogie frame 34, track tension adjustor bracket 35 and balance pivot 36, wherein upper bogie frame 34 is to open porose square steel on one side
Or the channel steel of U-shaped structure, upper 34 one end of bogie frame are provided with the driving wheel bearing block 31 for installing driving wheel 2, upper bogie frame
34 other ends are arranged at certain intervals there are two the track tension adjustor bracket 35 for installing track tension adjustor 6, are used for erecting bed
Upper bogie frame support frame bearing block 32 setting of vehicle frame bracket assembly 8 is in upper 34 two sides of bogie frame, for installing two dampings
Four upper bogie frame support bases 33 of device 4 and two hydraulic cylinders 51 are arranged inside upper bogie frame 34 in certain intervals, while
Balance pivot 36 is provided on upper bogie frame 34；
Leave from office chassis assembly 9 include lower bogie frame support frame bearing block 91, load-bearing wheel shaft 92, lower bogie frame support base 93,
Lower bogie frame 94 and lower bogie frame lever bracket 95, wherein lower bogie frame 94 is the slot for opening porose square steel or U-shaped structure on one side
Steel, the lower bogie frame support frame bearing block 91 for installing bogie frame bracket assembly 8 are arranged in lower 94 two sides of bogie frame, and
The annular groove for bearing positioning is provided in lower bogie frame support frame bearing block 91, load-bearing wheel shaft 92 is arranged in lower bogie frame 94
On, and lower bogie frame 94 is penetrated through, and 92 left and right ends structure of load-bearing wheel shaft is identical symmetrical about lower bogie frame 94, for installing two
The four lower bogie frame support bases 93 and lower bogie frame lever bracket 95 of a damper 4 and two hydraulic cylinders 51 are arranged in lower bogie frame
94 tops；
Bogie frame bracket assembly 8 include support frame 81, axle sleeve X1, deep-groove ball sealing bearing X2, upper support hubcap 82,
Upper support shaft 83, screw X3, lower support shaft 84 and snap ring X4, wherein 81 one end of support frame is provided with support shaft 83, support frame
81 other ends are provided with lower support shaft 84, and upper 83 left and right ends structure of support shaft is identical symmetrical about support frame 81, lower support shaft
84 left and right ends structures are identical symmetrical about support frame 81, are equipped with axle sleeve X1, upper branch in upper support shaft 83 and lower support shaft 84
Support axis 83 seals bearing X2 by deep-groove ball and is mounted on upper bogie frame support frame bearing block 82, and upper 83 both ends of support shaft pass through upper
Support hubcap 82 and screw X3 is fixed, and lower support shaft 84 seals bearing X2 by deep-groove ball and is mounted on lower bogie frame support frame axis
It holds on seat 91, lower 84 both ends of support shaft are fixed by snap ring X4；
Load-bearing wheel assembly 10 includes carrying roller 101, carrying roller end cap 102, gasket X5, spring leaf X6, fastening nut X7, spiral shell
It follows closely X3 and deep-groove ball seals bearing X2, the carrying roller 101 connecting with bogie frame bracket assembly 8 seals axis by two deep-groove balls
It holds X2 to be mounted in lower support shaft 84, be fixed on the outside of lower support shaft 84 by gasket X5, spring leaf X6 and fastening nut X7, it is outermost
Carrying roller end cap 102 is mounted on carrying roller 101 by end by screw X3；The load-bearing not connect with bogie frame bracket assembly 8
Wheel 101 seals bearing X2 by two deep-groove balls and is mounted on load-bearing wheel shaft 92, passes through gasket X5, spring on the outside of load-bearing wheel shaft 92
Piece X6 and fastening nut X7 are fixed, and carrying roller end cap 102 is mounted on carrying roller 101 by outermost end by screw X3；
Hydraulic pressure cylinder assembly 5 includes piston rod 51, hydraulic cylinder 52, damping spring footstock 53, damping spring 54 and damping bullet
Spring pedestal 55,51 upper end of piston rod are mounted in bogie frame support base 33, and damping spring pedestal 55 is mounted on lower bogie frame branch
It supports on seat 93, damping spring footstock 53 is mounted on hydraulic cylinder 52, and damping spring 54 is mounted on damping spring footstock 53 and subtracts
It shakes between spring pedestal 55；
Track tension adjustor 6 includes the adjustment lever 61 of setting symmetrical above and below, first sliding groove 611, second sliding slot 612, rear branch
Support wheel connecting rod 62, outside fastening nut 63, inside fastening nut 64, gasket X5, spring T, lower bogie frame pin P1, balance pivot
Pin P2 and rear support wheel connecting rod pin P3, adjustment lever 61 adjust on lever 61 about the setting symmetrical above and below of upper bogie frame 34
It is provided with the first sliding groove 611 for being used to support the opposite sliding of rear support wheel connecting rod pin P3 and is used to support lower bogie frame pin P1
The second sliding slot 612 of opposite sliding, adjustment lever 61 fasten spiral shell by lower bogie frame pin P1, outside fastening nut 63, inside
Mother 64, gasket X5 are connect with lower bogie frame lever bracket 95, and adjustment lever 61 passes through balance pivot pin P2, outside fastening nut
63, inside fastening nut 64, gasket X5 are mounted on balance pivot 36, adjustment lever 61 by rear support wheel connecting rod pin P3,
Outside fastening nut 63, inside fastening nut 64, gasket X5 are connect with rear support wheel connecting rod 62, and before rear support wheel connecting rod 62
End is provided with spring T, and the one end spring T is contacted with adjustment lever 61, and the other end is contacted with track tension adjustor bracket 35, and spring T
In compressive state；Lower bogie frame pin P1, fulcrum pin P2 and rear support wheel connecting rod pin P3 are fastened by double nut, so that
There is appropriate gap between adjustment lever 61 and upper bogie frame 34, lower bogie frame 94, can to adjust 61 flexible rotating of lever,
It can prevent from loosening；
When piston rod 51 extends under action of hydraulic force, upper bogie frame 34 and leave from office under the action of piston rod 51 at this time
It is generated between vehicle frame 94 and is relatively distant from movement, adjusted lever 61 in the process around balance pivot pin P2 and do rotation counterclockwise
Turn, rear support wheel connecting rod pin P3 opposite adjustment lever 61 in first sliding groove 611 slides, and lower bogie frame pin P1 is sliding second
Opposite adjustment lever 61 slides in slot 612, so adjusts lever 61 and pulls rear support wheel to connect by rear support wheel connecting rod pin P3
Bar 62 does the movement of 1 shrinkage direction of opposing tracks, and shrinkage caused by crawler belt 1 is therefore caused to make up because upper bogie frame 34 is opposite
The amount of expansion that lower bogie frame 94 is separate and generates；Conversely, when piston rod 51 is shunk under action of hydraulic force, at this time in piston rod
Relative approximation movement is generated under the action of 51 between upper bogie frame 34 and lower bogie frame 94, lever 61 is adjusted in the process and surrounds
Balance pivot pin P2 is rotated clockwise, and rear support wheel connecting rod pin P3 opposite adjustment lever 61 in first sliding groove 611 is sliding
Dynamic, lower bogie frame pin P1 opposite adjustment lever 61 in second sliding slot 612 slides, and so adjusts lever 61 and passes through rear support wheel
Connecting rod pin P3 pushes rear support wheel connecting rod 62 to do the movement of 1 dimension of opposing tracks, and amount of expansion caused by therefore leading to 1
From the burst size for descending bogie frame 94 to generate due to approaching relatively because of upper bogie frame 34；
Rear support wheel assembly 7 includes fastening nut X7, spring leaf X6, gasket X5, rear support axle bracket 71, dustband
72, rear support wheel 73, deep groove ball bearing X8, snap ring X4 and rear support wheel shaft 74, wherein rear support axle bracket 71 and rear support
It takes turns connecting rod 62 to connect, rear support wheel 73 is fixed on rear support wheel shaft 74 by deep groove ball bearing X8 and snap ring X4, rear support wheel
74 both ends of axis are fixed on rear support axle bracket 71 by fastening nut X7, spring leaf X6 and gasket X5, and in rear support wheel
Dustband 72 is installed between bracing strut 71 and rear support wheel 73.
4 working principle of damper:
In motion, when leading to vibration due to ground out-of-flatness etc., the ground connection sliding tooth 13 of crawler belt 1 accepts absorption vibration
Leave from office chassis assembly 9 is driven to after dynamic, since 51 upper end of piston rod is mounted in upper bogie frame support base 33, damping spring pedestal
55 are mounted on lower bogie frame support base 93, and damping spring footstock 53 is mounted on hydraulic cylinder 52, and damping spring 54 is mounted on
Between damping spring footstock 53 and damping spring pedestal 55, vibration is transferred to damping spring 54 by damping spring pedestal 55, then
It is transferred to damping spring footstock 53, piston rod 51 is transferred to by hydraulic cylinder 52, is then transmitted by upper bogie frame support base 33
Supreme bogie frame 34, is finally transferred to complete machine, since vibration is just transferred to complete machine by damping spring 54, has damping function
Energy；Since damping spring 54 is located between hydraulic cylinder 52 and lower bogie frame 94, all have during entire lift adjustment
There is damping effect, the ride comfort and comfort of complete machine can be improved.Damping spring 54 in damper 4 and hydraulic pressure cylinder assembly 5 is common
Effect realizes damping and absorbs vibration energy；
Track driving mechanism rises working principle:
Normally travel, the relative height differential of appear on the stage chassis assembly 3 and leave from office chassis assembly 9 is H0 (as shown in Figure 1), when need
When increasing the road clearance (as shown in Figure 8), operation hydraulic system makes hydraulic cylinder extend piston rod 51 under the action of hydraulic coupling,
Three support frames 81 do rotation counterclockwise around respective lower support shaft 84, and chassis assembly 3 of appearing on the stage is opposite with leave from office chassis assembly 9
Difference in height increases to H1, and the crawler belt 1 after raising surrounds perimeter and increases；Pass through lower bogie frame pin P1 and leave from office chassis assembly simultaneously
The adjustment lever 61 of 9 connections, rotates counterclockwise around balance pivot pin P2, work of the rear support wheel connecting rod 62 in adjustment lever 61
With lower forward movement, and then rear support wheel assembly 7 is driven to move forward, so that crawler belt 1 is surrounded perimeter and reduce, at this time upper bogie frame 34, under
94 relative position of bogie frame increases increased crawler belt encirclement perimeter and connects with the mobile reduced encirclement perimeter of crawler belt 1 of rear support wheel 73
Closely, to guarantee in track driving mechanism uphill process, the height of track driving mechanism changes, and crawler belt encirclement perimeter is constant,
Crawler belt 1 can be effectively prevent to fall off；Under the action of spring T, 7 moment of rear support wheel assembly supports crawler belt 1, is guaranteeing crawler belt 1 just
Often tensioning；
Track driving mechanism declines working principle:
Normally travel, the relative height differential of appear on the stage chassis assembly 3 and leave from office chassis assembly 9 is H0 (as shown in Figure 1), when need
When reducing the road clearance (as shown in Figure 9), operation hydraulic system makes 51 oil pressure unloading of piston rod, under the action of car weight, liquid
Cylinder pressure is slowly shunk, and three support frames 81 are rotated clockwise around respective lower support shaft 84, appear on the stage chassis assembly 3 and lower trolley
The relative height differential of frame component 9 narrows down to H2, and the crawler belt 1 after reduction surrounds perimeter and reduces；Pass through lower bogie frame pin P1 simultaneously
The adjustment lever 61 connecting with leave from office chassis assembly 9 is rotated clockwise around balance pivot pin P2, and rear support wheel connecting rod 62 exists
It is moved backward under the action of adjustment lever 61, and then rear support wheel assembly 7 is driven to move back, so that crawler belt 1 is surrounded perimeter and increase, at this time
Upper bogie frame 34,94 relative position of lower bogie frame reduce reduced crawler belt and surround perimeter and the mobile increased crawler belt of rear support wheel 73
1 encirclement perimeter is very close, and to guarantee in track driving mechanism uphill process, the height of crawler belt travel-driving mechanism becomes
Change, crawler belt encirclement perimeter is constant, and crawler belt 1 can be effectively prevent to fall off；Under the action of spring T, the support of 7 moment of rear support wheel assembly
Crawler belt 1 guarantees the normal tensioning of crawler belt 1.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (10)
1. a kind of shock reducing type track driving mechanism of adjustable terrain clearance, including crawler belt, driving wheel, chassis assembly of appearing on the stage, subtract
Shake device, hydraulic cylinder, track tension adjustor, rear support wheel assembly, bogie frame bracket assembly, leave from office chassis assembly and carrying roller group
Part, which is characterized in that chassis assembly one end of appearing on the stage is provided with driving wheel, the chassis assembly other end of appearing on the stage be provided with for rear branch
The track tension adjustor of wheel assembly connection is supportted, load-bearing wheel assembly is arranged on leave from office chassis assembly, the setting of bogie frame bracket assembly
It is appearing on the stage between chassis assembly and leave from office chassis assembly, one end of damper and hydraulic pressure cylinder assembly is connect with chassis assembly of appearing on the stage,
The other end of damper and hydraulic pressure cylinder assembly is connect with leave from office chassis assembly, crawler belt be sleeved on driving wheel, rear support wheel assembly and
On load-bearing wheel assembly；
In bogie frame bracket assembly, support frame one end is provided with support shaft, and the support frame other end is provided with lower support shaft, on
Support shaft left and right ends structure is identical symmetrical about support frame, and lower support shaft left and right ends structure is identical symmetrical about support frame；
In load-bearing wheel assembly, the carrying roller connecting with bogie frame bracket assembly is mounted in lower support shaft, lower support shaft installation
On the lower bogie frame support frame bearing block of leave from office chassis assembly, the carrying roller not connecting with bogie frame bracket assembly is mounted on
On the load-bearing wheel shaft of leave from office chassis assembly；
In track tension adjustor, be provided with a pair of of adjustment lever, adjust lever about the upper bogie frame in chassis assembly of appearing on the stage above and below
Symmetrically, under the first sliding groove for being used to support the opposite sliding of rear support wheel connecting rod pin is provided on adjustment lever and is used to support
The second sliding slot of the opposite sliding of bogie frame pin, adjusts lower bogie frame of the lever by lower bogie frame pin and leave from office chassis assembly
Lever bracket connection, adjustment lever are mounted on the balance pivot being arranged on upper bogie frame by balance pivot pin, adjust lever
It is connect by rear support wheel connecting rod pin with the rear support wheel connecting rod of rear support wheel assembly, and is arranged in rear support wheel connecting rod front end
There is the spring in compressive state, spring one end and adjustment lever contact, the other end are contacted with track tension adjustor bracket；
In hydraulic pressure cylinder assembly, be provided with for damper collective effect with the damping spring of effective attenuation vibrational energy.
2. a kind of shock reducing type track driving mechanism of adjustable terrain clearance according to claim 1, which is characterized in that carry out
Band includes crawler belt limiting tooth, track body and ground connection sliding tooth, is provided in track body for by driving wheel, rear support wheel
Component and load-bearing wheel assembly are provided with ground connection sliding tooth outside track body to limit the crawler belt limiting tooth of track body freedom degree.
3. a kind of shock reducing type track driving mechanism of adjustable terrain clearance according to claim 1, which is characterized in that on
Bogie frame is the channel steel for opening porose square steel or U-shaped structure on one side.
4. a kind of shock reducing type track driving mechanism of adjustable terrain clearance according to claim 1, which is characterized in that under
Bogie frame is the channel steel for opening porose square steel or U-shaped structure on one side.
5. a kind of shock reducing type track driving mechanism of adjustable terrain clearance according to claim 1, which is characterized in that under
The annular groove for bearing positioning is provided in bogie frame support frame bearing block.
6. a kind of shock reducing type track driving mechanism of adjustable terrain clearance according to claim 1, which is characterized in that on
Support shaft seals bearing by deep-groove ball and is mounted on upper bogie frame support frame bearing block, and lower support shaft seals axis by deep-groove ball
It holds and is mounted on lower bogie frame support frame bearing block.
7. a kind of shock reducing type track driving mechanism of adjustable terrain clearance according to claim 1, which is characterized in that liquid
Cylinder pressure component further includes piston rod, hydraulic cylinder, damping spring footstock and damping spring pedestal, and piston rod upper end, which is mounted on, appears on the stage
In vehicle frame support base, damping spring pedestal is mounted on lower bogie frame support base, and damping spring footstock is mounted on hydraulic cylinder,
Damping spring is mounted between damping spring footstock and damping spring pedestal.
8. a kind of shock reducing type track driving mechanism of adjustable terrain clearance according to claim 1, which is characterized in that with
There are three the carrying roller settings of bogie frame bracket assembly connection.
9. a kind of shock reducing type track driving mechanism of adjustable terrain clearance according to claim 1, which is characterized in that no
There are two the carrying roller settings connecting with bogie frame bracket assembly.
10. a kind of shock reducing type track driving mechanism of adjustable terrain clearance according to claim 1, which is characterized in that
Dustband is installed between rear support axle bracket and rear support wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821300271.9U CN208647001U (en) | 2018-08-13 | 2018-08-13 | A kind of shock reducing type track driving mechanism of adjustable terrain clearance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821300271.9U CN208647001U (en) | 2018-08-13 | 2018-08-13 | A kind of shock reducing type track driving mechanism of adjustable terrain clearance |
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| Publication Number | Publication Date |
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| CN208647001U true CN208647001U (en) | 2019-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821300271.9U Expired - Fee Related CN208647001U (en) | 2018-08-13 | 2018-08-13 | A kind of shock reducing type track driving mechanism of adjustable terrain clearance |
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| CN (1) | CN208647001U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108773422A (en) * | 2018-08-13 | 2018-11-09 | 湖南农业大学 | A kind of shock reducing type track driving mechanism of adjustable terrain clearance |
| CN113829813A (en) * | 2021-11-11 | 2021-12-24 | 郑州宇通重工有限公司 | Liftable variant track structure and wheel-track composite equipment |
-
2018
- 2018-08-13 CN CN201821300271.9U patent/CN208647001U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108773422A (en) * | 2018-08-13 | 2018-11-09 | 湖南农业大学 | A kind of shock reducing type track driving mechanism of adjustable terrain clearance |
| CN113829813A (en) * | 2021-11-11 | 2021-12-24 | 郑州宇通重工有限公司 | Liftable variant track structure and wheel-track composite equipment |
| CN113829813B (en) * | 2021-11-11 | 2023-10-20 | 郑州宇通重工有限公司 | Liftable modification track structure and wheel-track compound equipment |
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