CN107306494B - Working truck - Google Patents
Working truck Download PDFInfo
- Publication number
- CN107306494B CN107306494B CN201680000492.1A CN201680000492A CN107306494B CN 107306494 B CN107306494 B CN 107306494B CN 201680000492 A CN201680000492 A CN 201680000492A CN 107306494 B CN107306494 B CN 107306494B
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- China
- Prior art keywords
- bar portion
- inclined floor
- bar
- supported
- restoring force
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D33/00—Superstructures for load-carrying vehicles
- B62D33/06—Drivers' cabs
- B62D33/063—Drivers' cabs movable from one position into at least one other position, e.g. tiltable, pivotable about a vertical axis, displaceable from one side of the vehicle to the other
- B62D33/067—Drivers' cabs movable from one position into at least one other position, e.g. tiltable, pivotable about a vertical axis, displaceable from one side of the vehicle to the other tiltable
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/30—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom
- E02F3/307—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom the boom and the dipper-arm being connected so as to permit relative movement in more than one plane
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/16—Cabins, platforms, or the like, for drivers
- E02F9/166—Cabins, platforms, or the like, for drivers movable, tiltable or pivoting, e.g. movable seats, dampening arrangements of cabins
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
- E02F9/2271—Actuators and supports therefor and protection therefor
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Fluid-Damping Devices (AREA)
- Component Parts Of Construction Machinery (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The present invention working truck include：Inclined floor can obliquely be supported in vehicle frame by linkage；Gas spring is supported in vehicle frame, by generating the power for making inclined floor move, can inclined floor be moved the first tilt quantity；Torsion bar has：First bar portion, is supported in vehicle frame, can generate the restoring force relative to torsional deflection；Second bar portion is connect with the one end of the first bar portion, can be in contact at least part of the lower surface of inclined floor；And third bar portion, it is connect with the other end of the first bar portion, the torsion bar by inclined floor by moving second tilt quantity smaller than the first tilt quantity come the movement of ancillary oblique bottom plate；And guide member, it is supported in vehicle frame, guiding third bar portion allows it to move in the up-down direction.
Description
Technical field
The present invention relates to working trucks.
Background technology
In the technical field that working truck is related to, it is known to which one kind having inclined floor as disclosed in Patent Document 1
Working truck.In order to mitigate physical load when operator is lifted inclined floor, being equipped with to generate in working truck makes inclination
The torsion bar of the gas spring and the movement of ancillary oblique bottom plate of the power of bottom plate movement.
Patent document 1：Japanese Unexamined Patent Publication 2005-001645 bulletins
Invention content
In the lower surface of inclined floor, the such wiring of cable, hose and electric wire, piping are often equipped with (hereinafter, claiming
For wiring etc.).In the state of being arranged at the wiring etc. of the lower surface of inclined floor in torsion bar and tangle, if being made by gas spring
Inclined floor moves, then at least one party in torsion bar and wiring etc. is likely to occur breakage.
It can inhibit the broken of torsion bar and wiring etc. in the movement of inclined floor the object of the present invention is to provide a kind of
The working truck of damage.
Form according to the present invention provides a kind of working truck comprising：Inclined floor, can by linkage
Obliquely it is supported in vehicle frame；Gas spring is supported in vehicle frame, by generating the power for making inclined floor move, can will incline
Inclined bottom plate moves the first tilt quantity；Torsion bar has：First bar portion, is supported in vehicle frame, can generate and become relative to torsion
The restoring force of shape；Second bar portion is connect with the one end of the first bar portion, can be at least one of the lower surface of inclined floor
Split-phase contacts；Third bar portion is connect with the other end of the first bar portion, which is inclined by moving inclined floor than first
The second small tilt quantity of gradient carrys out the movement of ancillary oblique bottom plate；And guide member, it is supported in vehicle frame, guides third bar
Portion allows it to move in the up-down direction.
Form according to the present invention, provide a kind of can inhibit the broken of torsion bar and wiring etc. in the movement of inclined floor
The working truck of damage.
Description of the drawings
Fig. 1 is an exemplary stereogram for indicating working truck of the present embodiment.
Fig. 2 is an exemplary side view for indicating working truck of the present embodiment.
Fig. 3 is an exemplary figure of the action for schematically showing working truck of the present embodiment.
Fig. 4 is to indicate torsion bar of the present embodiment and the side view of gas spring.
Fig. 5 is to indicate torsion bar of the present embodiment and the stereogram of gas spring.
Fig. 6 is the side view of the torsion bar and gas spring when indicating inclined floor movement of the present embodiment.
Fig. 7 is the stereogram of the torsion bar and gas spring when indicating inclined floor movement of the present embodiment.
Fig. 8 is torsion when indicating the inclined floor movement of the present embodiment in the case where torsion bar is connected up etc. and to be tangled
The side view of bar and gas spring.
Fig. 9 is torsion when indicating the inclined floor movement of the present embodiment in the case where torsion bar is connected up etc. and to be tangled
The stereogram of bar and gas spring.
Figure 10 is between the size of the slant range and guiding groove for illustrating inclined floor of the present embodiment
The schematic diagram of relationship.
Symbol description
1 hydraulic crawler excavator (working truck)
10 working rigs
11 master arms
12 biasing swing arms
13 dippers
14 scraper bowls
14B crowns
15 swing arm cylinders
16 biasing cylinders
17 dipper cylinders
18 scraper bowl cylinders
20 upper rotations (vehicle body)
21 driver's seats
22 skylights
23 ceilings
24 pillars
25 operating levers
25A working rig bars
25B walking rods
26 bearing parts
The first bearing parts of 26A
The second bearing parts of 26B
27 vehicle frames
28 bearing parts
29 linkages
30 lower running bodies (running gear)
31 crawler belts
40 dozers
50 torsion bars
51 first bar portions
52 second bar portions
53 third bar portions
60 inclined floors
61 brackets
62 brackets
70 gas springs
72 cylinders
74 piston rods
76 linkages
80 guide members
82 guiding grooves
84 lower faces
86 upper surfaces
The first guide surfaces of 88A
The second guide surfaces of 88B
AX1, AX2, AX3 rotary shaft
RX rotating shafts
Specific implementation mode
In the following, being illustrated to embodiment of the present invention with reference to attached drawing, but the invention is not restricted to this.It says below
The structural element of bright embodiment can be appropriately combined.In addition, there is also the feelings without using a portion structural element
Condition.
Fig. 1 is an exemplary stereogram for indicating working truck 1 of the present embodiment.Fig. 2 is to indicate this implementation
One exemplary side view of the working truck 1 that mode is related to.Fig. 3 is to schematically show Operation Van of the present embodiment
One exemplary figure of 1 action.In the present embodiment, the example that working truck 1 is hydraulic crawler excavator 1 is said
It is bright.
As shown in Figure 1, Figure 2 and Figure 3, hydraulic crawler excavator 1 has：Working rig 10, is acted using hydraulic pressure；Vehicle master
Body 20, with driver's seat 21；Running gear 30 supports vehicle body 20；And dozer 40.
Working rig 10 is supported on vehicle body 20.In the present embodiment, working rig 10 is so-called dynamic with offset
The offset working rig of arm.Working rig 10 has：Master arm 11 is connect with vehicle body 20；Swing arm 12 is biased, with active
Arm 11 connects；Dipper 13 is connect with biasing swing arm 12；And scraper bowl 14, it is connect with dipper 13.Scraper bowl 14 has convex
Multiple bucket tooths.It is the front end of bucket tooth equipped with multiple crown 14B.In addition, the crown 14B of scraper bowl 14 can also be to be set to shovel
The front end of the bucket tooth of the rectilinear form of bucket 14.
Vehicle body 20 and master arm 11 pass through swing arm pin connection.Master arm 11 centered on rotary shaft AX1 rotatably
It is supported on vehicle body 20.Master arm 11 and biasing swing arm 12 pass through the first biasing pin connection.Swing arm 12 is biased with the first biasing
Master arm 11 is rotatably supported in centered on axis.Biasing swing arm 12 and dipper 13 pass through arm pin connection.Dipper 13 is with rotary shaft
Biasing swing arm 12 is rotatably supported in centered on AX2.In addition, biasing swing arm 12 and dipper 13 pass through the second biasing pin connection.
Dipper 13 is rotatably supported in biasing swing arm 12 centered on the second bias axis.Dipper 13 and scraper bowl 14 are connected by scraper bowl pin
It connects.Scraper bowl 14 is rotatably supported in dipper 13 centered on rotary shaft AX3.
Vehicle body 20 is configured at the top of running gear 30, can be in the state of being supported on running gear 30, to return
It is turned round centered on shaft RX.In the following description, vehicle body 20 can be referred to as upper rotation 20, it can be by running gear 30
Referred to as lower running body 30.
Rotary shaft AX1, rotary shaft AX2 are parallel with rotary shaft AX3.Rotary shaft AX1, AX2, AX3 and it is parallel to rotating shaft RX
Axis it is orthogonal.In the following description, the direction parallel with rotary shaft AX1, AX2, AX3 can be referred to as to the vehicle of upper rotation 20
The direction parallel with rotating shaft RX can be referred to as the upper and lower directions of upper rotation 20 by wide direction, can will with rotary shaft AX1,
Both AX2, AX3 and rotating shaft RX orthogonal direction is referred to as the front-rear direction of upper rotation 20.
In the present embodiment, it is front there are the direction of scraper bowl 14 on the basis of the driver for being seated at driver's seat 21,
The opposite direction in front is rear.One side of vehicle width direction is right, and the opposite direction of right is left.Scraper bowl 14 is configured at
The front of portion's revolving body 20.Multiple crown 14B of scraper bowl 14 are configured at vehicle width direction.Dozer 40 is configured at lower running body 30
Front.
Working rig 10 is acted by hydraulic cylinder.Hydraulic crawler excavator 1 has：Swing arm cylinder 15 carries out master arm 11
Driving；Cylinder 16 is biased, biasing swing arm 12 is driven；Dipper cylinder 17 drives dipper 13；And scraper bowl cylinder
18, scraper bowl 14 is driven.When swing arm cylinder 15 acts, the base end part of master arm 11 is rotated centered on rotary shaft AX1,
It moves in the up-down direction the front end of master arm 11.When dipper cylinder 17 acts, the base end part of dipper 13 is with rotary shaft AX2
Center rotates, and the front end of dipper 13 is moved in the up-down direction.When scraper bowl cylinder 18 acts, the base end part of scraper bowl 14 is to rotate
It is rotated centered on axis AX3, the crown 14B of scraper bowl 14 is moved in the up-down direction.
Working rig 10 as offset working rig can be such that scraper bowl 14 is moved in the vehicle width direction of upper rotation 20.
It biases cylinder 16 to act, biasing swing arm 12 is rotated centered on the first bias axis, and thus dipper 13 and scraper bowl 14 be in the vehicle width direction
It is mobile.Dipper 13 and the rotation of the biasing swing arm 12 centered on the first bias axis are synchronously revolved centered on the second bias axis
Turn.As a result, in the state of maintaining multiple crown 14B being configured in vehicle width direction, dipper 13 and scraper bowl 14 are in the direction of vehicle width
On move in parallel.
Scraper bowl 14 is configured at the front of upper rotation 20.By biasing the action of cylinder 16, scraper bowl 14 can be moved to and drive
Sail the front of seat 21.
Upper rotation 20 has：Inclined floor 60；Driver's seat 21 is supported in inclined floor 60, just for driver
Seat；Ceiling 23 is supported in inclined floor 60 by pillar 24, and has skylight 22；And operating lever 25, by driver
Operation.
Operating lever 25 includes：Working rig bar 25A is used to operate working rig 10；And walking rod 25B, it uses
It is operated in lower running body 30.Working rig bar 25A is respectively arranged at the right and left of driver's seat 21.Walking rod 25B
It is configured at the front of driver's seat 21.
Lower running body 30 has a pair of of crawler belt 31.By the rotation of crawler belt 31, hydraulic crawler excavator 1A walks.Separately
Outside, lower running body 30 can have tire.
Hydraulic crawler excavator 1 has being capable of inclined inclined floor 60.As shown in the double dot dash line of Fig. 3, inclined floor 60 to
Front tilts.Such as in the upkeep operation of hydraulic crawler excavator 1, inclined floor 60 is made to tilt forwards, to implement to return on top
The engine of the inside configuration of swivel 20 or the upkeep operation of equipment.By being set in the space of the lower face side of inclined floor 60
The gas spring 70 and torsion bar 50 set, to make inclined floor 60 move.
Fig. 4 is to indicate torsion bar 50 of the present embodiment and the side view of gas spring 70.Fig. 5 is to indicate this embodiment party
The stereogram of torsion bar 50 and gas spring 70 that formula is related to.Fig. 4 and Fig. 5 indicates the state that inclined floor 60 is not inclined by.
As shown in Figure 4 and 5, inclined floor 60 can obliquely be supported on upper rotation by linkage 29
20 vehicle frame 27.The bearing part 28 supported to inclined floor 60 is equipped on vehicle frame 27.In the following table of inclined floor 60
The front in face is equipped with bracket 61.The bracket 61 of inclined floor 60 is supported in bearing part 28 by linkage 29.In this reality
It applies in mode, the rotary shaft of linkage 29 is parallel with rotary shaft AX1, AX2 of working rig 10 and AX3.
Hydraulic crawler excavator 1 has：Gas spring 70 is supported in vehicle frame 27, and generates the power for making inclined floor 60 move；
Torsion bar 50 is supported in vehicle frame 27, and the movement of ancillary oblique bottom plate 60；And guide member 80, it is supported in vehicle frame
27, and at least part of torsion bar 50 is guided in the up-down direction.
Gas spring 70 is connect with vehicle frame 27 and inclined floor 60, and generates the spring force for making inclined floor 60 move.Gas bullet
Spring 70, by the way that inclined floor 60 is moved the first tilt quantity, can make inclined floor in the state of being connect with inclined floor 60
60 movements.Gas spring 70 has：Cylinder 72；And it can be relative to the piston rod 74 that cylinder 72 moves (with reference to Fig. 6).Gas spring
70 upper end is connect by linkage 76 with inclined floor 60.It is equipped with bracket 62 in the lower surface of inclined floor 60.Gas bullet
The upper end of spring 70 is connect by linkage 76 with bracket 62.The lower end of gas spring 70 passes through linkage and vehicle frame 27
At least part connects.
Torsion bar 50 is supported in the bearing part 26 being arranged on vehicle frame 27, and generate the movement of ancillary oblique bottom plate 60
Restoring force.Torsion bar 50 has：First bar portion 51 is supported in the bearing part 26 of vehicle frame 27, can generate relative to torsion
The restoring force of deformation；Second bar portion 52 is connect with the one end of the first bar portion 51, can be with the lower surface of inclined floor 60
At least part is in contact；And third bar portion 53, it is connect with the other end of the first bar portion 51.Torsion bar 50 is in the second bar portion
In the state that 52 are in contact with inclined floor 60, inclined floor 60 is moved into second tilt quantity smaller than the first tilt quantity to assist
The movement of inclined floor 60.
First bar portion 51 extends in the vehicle width direction.First bar portion 51 twist deformation when, first bar portion 51 generate
Restoring force relative to torsional deflection.Fig. 4 and Fig. 5 indicate that the first bar portion 51 twists the state of deformation.Bearing part 26
Including：The first bearing part 26A that a part for first bar portion 51 is supported；And another part to the first bar portion 51
The the second bearing part 26B supported.
Second bar portion 52 is connect with one end, that is, left part of the vehicle width direction of the first bar portion 51.Second bar portion 52 from first
The left part of bar portion 51 rearward extends.In the state that inclined floor 60 is not inclined by, the rear end of the second bar portion 52 with incline
The lower surface of inclined bottom plate 60 is in contact.In the state that inclined floor 60 is not inclined by, the second bar portion 52 be inclined by bottom plate 60 from
Top presses.When second bar portion 52 is pressed from top, the first bar portion 51 twists deformation.First bar portion 51 generate relative to
The restoring force of torsional deflection.Due to the restoring force of the first bar portion 51, the second bar portion 52 for being inclined by the pressing of bottom plate 60 is intended to upward
It is mobile.At Fig. 4 and state shown in fig. 5, inclined floor 60 is from the second bar portion 52 by the power for making it be moved upward.
Third bar portion 53 is connect with the other end, that is, right part of the vehicle width direction of the first bar portion 51.Third bar portion 53 is from
The right part of one bar portion 51 rearward extends.The length for being shorter in length than the second bar portion 52 of third bar portion 53.Third bar portion 53 is not
It is contacted with inclined floor 60.53 guided member 80 of third bar portion guides.
Guide member 80 is supported in vehicle frame 27, and third bar portion 53 is guided to allow it to move in the up-down direction.
Guide member 80 has the guiding groove 82 configured for third bar portion 53.In the present embodiment, guiding groove 82 is through guide portion
The front surface of part 80 and the guide hole of rear surface.Guiding groove 82 is longer in the up-down direction.
As shown in figure 5, guiding groove 82 includes：Lower face 84 can be contacted with third bar portion 53；Upper surface 86；First
Guide surface 88A, extends in the up-down direction；And the second guide surface 88B, extend in the up-down direction, and draw with first
Guide face 88A is opposed across with gap.First guide surface 88A and the second guide surface 88B are configured in the vehicle width direction.First guiding
Face 88A is towards the left of vehicle width direction.Second guide surface 88B is towards the right of vehicle width direction.Lower face 84 and upper surface 86 are logical
Cross the first guide surface 88A and the second guide surface 88B connections.
The gap size and the appearance and size of third bar portion 53 of first guide surface 88A and the second guide surface 88B are substantially equal
Or it is more slightly larger than the appearance and size of third bar portion 53.The size of guiding groove 82 in the up-down direction is more than guiding groove 82 in vehicle width side
Upward size.That is, guiding groove 82 is longer in the up-down direction.Third bar portion 53 is configured in the state of guiding groove 82 at it
Under, movement in the vehicle width direction is limited by the first guide surface 88A and the second guide surface 88B, and shifting in the up-down direction
It is dynamic to be allowed to.
In the following, illustrating an example of the action of inclined floor 60 of the present embodiment.Fig. 6 is to indicate this embodiment party
The side view of torsion bar 50 and gas spring 70 when the inclined floor 60 that formula is related to moves.Fig. 7 is to indicate that present embodiment is related to
Inclined floor 60 move when torsion bar 50 and gas spring 70 stereogram.
Such as operator releases the locking of inclined floor 60 and vehicle frame 27, and inclined floor 60 is made to start to move.Operator lifts
When rising inclined floor 60, gas spring 70 generates the power for making inclined floor 60 move.The deformation in addition, the first bar portion 51 twists
Torsion bar 50 generates restoring force, the movement of ancillary oblique bottom plate 60.
Second bar portion 52, in the state that it is in contact with inclined floor 60, the restoring force by the first bar portion 51 is upward
Fang Yidong carrys out the movement of ancillary oblique bottom plate 60.When restoring force of second bar portion 52 by the first bar portion 51 moves, third
Bar portion 53 does not move.When restoring force of second bar portion 52 by the first bar portion 51 moves, the continuation of third bar portion 53 is supported
In the lower face of guiding groove 82 84.
The moving range of second bar portion 52 caused by restoring force by the first bar portion 51 is preset.Second bar portion 52 exists
In the state that it is in contact with inclined floor 60, the second tilt quantity is moved by the restoring force of the first bar portion 51.By first
In the moving range of second bar portion 52 caused by the restoring force of bar portion 51, power that inclined floor 60 is generated by gas spring 70 and
Restoring force both power that torsion bar 50 generates move.
When the restoring force of first bar portion 51 disappears and the second bar portion 52 has moved the second tilt quantity, by the first bar portion 51
The mobile stopping of second bar portion 52 caused by restoring force.
The first inclination that gas spring 70 can make the movement of inclined floor 60 bigger than second tilt quantity caused by torsion bar 50
Amount.Even if after the mobile stopping of second bar portion 52 caused by the restoring force by the first bar portion 51, inclined floor 60 can also pass through
Gas spring 70 generate power and move.Even if that is, the movement of second bar portion 52 caused by the restoring force by the first bar portion 51 stops
After only, the power that the tilting action of inclined floor 60 can also be generated by gas spring 70 by, continues.By the first bar portion 51
After the mobile stopping of second bar portion 52 caused by restoring force, the power that inclined floor 60 is generated by gas spring 70 by, moves.
The amount of movement of movement is equal to by gas spring by the power that the mobile stopping hypsokinesis inclined bottom plate 60 of two bar portions 52 is generated by gas spring 70
The difference of 70 the first tilt quantities and the second tilt quantity generated by torsion bar 50 generated.
During so that inclined floor 60 is moved by gas spring 70, the movement of inclined floor 60 is due to blocking (not shown)
The effect of mechanism and stop, and terminate to move.In the present embodiment, by blocking mechanism, inclined floor 60 is indicated to set
Mobile range slant range.Inclined floor 60 moves in defined slant range.
Fig. 6 and Fig. 7 indicate that the movement of inclined floor 60 stops due to the effect of blocking mechanism, inclined floor 60 by with
Set the state of the upper end of slant range.In the state that inclined floor 60 is configured to the upper end of slant range, tilt
Bottom plate 60 is detached with torsion bar 50.Third bar portion 53 is supported in the lower face 84 of guiding groove 82.
However, in the lower surface of inclined floor 60, it is often equipped with such wiring of cable, hose and electric wire etc..
After the mobile stopping of second bar portion 52 caused by restoring force by the first bar portion 51, it is possible to be tangled by the wiring etc. in torsion bar 50
In the state of, the power that inclined floor 60 is generated by gas spring 70 by, continues to move to.
In the following, in the case that the wiring etc. that explanation is located at the lower surface of inclined floor 60 in torsion bar 50 tangles, bottom is tilted
One example of the action of plate 60.Fig. 8 is to indicate of the present embodiment in the case where torsion bar 50 is connected up etc. and to be tangled to incline
The side view of torsion bar 50 and gas spring 70 when inclined bottom plate 60 moves.Fig. 9 is to indicate the feelings tangled such as to be connected up in torsion bar 50
The stereogram of torsion bar 50 and gas spring 70 under condition when the movement of inclined floor 60 of the present embodiment.
In the case of being located at the wiring etc. of the lower surface of inclined floor 60 in torsion bar 50 and tangle, even if by the first bar portion
, also can as shown in FIG. 8 and 9 after mobile stopping caused by 51 restoring force, the second bar portion 52 is inclined because of wiring etc.
Inclined bottom plate 60 pulls, and is moved upward.Even if that is, after the second bar portion 52 moves the second tilt quantity, the second bar portion 52 also can be because
It is further moved upward for wiring etc..
In the present embodiment, guiding groove 82 of the configuration of third bar portion 53 in guide member 80.Third bar portion 53 is upper and lower
Movement on direction is allowed.It is pulled upward since the second bar portion 52 is inclined by bottom plate 60, after the second bar portion 52
In the case that end is rotatably moved upward centered on the rotation center of the first bar portion 51, third bar portion 53, with the second bar
Portion 52 is synchronously, the rear end of third bar portion 53 is rotatably moved upward centered on the rotation center of the first bar portion 51.That is,
In the present embodiment, second bar portion 52 is still moved upward after the mobile stopping caused by the restoring force by the first bar portion 51
When, 53 guided member 80 of third bar portion guiding ground is moved upward together with the second bar portion 52.
As shown in FIG. 8 and 9, inclined floor 60 stops in the upper end of slant range.In Fig. 8 and shown in Fig. 9
In example, indicate in the state that the rear end of the second bar portion 52 is in contact with the lower surface of inclined floor 60, with inclined floor
60 move together the state of the upper end of slant range.
Along with the movement of the second bar portion 52 upward, third bar portion 53 is also moved upward, therefore such as Fig. 8 and Fig. 9
Shown, third bar portion 53 is left from the lower face of guiding groove 82 84.Third bar portion 53 is synchronously moved with the second bar portion 52, therefore
First bar portion 51 does not twist deformation.In the state that third bar portion 53 is detached with the lower face 84 of guiding groove 82, the first bar
The torsional deflection in portion 51 is substantially zero.
Even if the second bar portion 52 of torsion bar 50 is connected up etc. and to be tangled, also can by the second bar portion 52 with inclined floor 60 together
It is moved upward, excessive power can be inhibited to act on wiring etc..In addition, third bar portion 53 can in above-below direction movably by
Guide member 80 guides.Therefore, third bar portion 53 can be synchronously moved upward with the second bar portion 52.Therefore, it is possible to inhibit
First bar portion 51 is reversed to negative direction, inhibits the breakage of torsion bar 50.
In the present embodiment, in order to be configured to the upper end of slant range in inclined floor 60, the second bar portion 52 with
Inclined floor 60 is moved to the upper end of slant range together, and third bar portion 53 is synchronously moved upward with second bar portion 52
When, so that the upper surface 86 of third bar portion 53 and guiding groove 82 is in contact, and be based on being configured at inclined floor in the second bar portion 52
It when the upper end of 60 slant range, third bar portion 53 height Pa and is configured at by the first bar portion 51 in the second bar portion 52
Caused by restoring force when the upper end of the moving range of the second bar portion 52, the height Pb of third bar portion 53, to set guiding groove
82 size.
Figure 10 is the guiding of the slant range and guide member 80 for illustrating inclined floor 60 of the present embodiment
The schematic diagram of the relationship of size between slot 82.
In Fig. 10, dotted line be schematically show the second bar portion 52 under the non-heeling condition illustrated with reference to Fig. 4 and
The line of third bar portion 53.Solid line is to schematically show the movement by the restoring force of the first bar portion 51 by illustrated with reference to Fig. 6
The line of second bar portion 52.That is, solid line indicates the second bar portion 52 after mobile second tilt quantity.Single dotted broken line is to schematically show
It is connected up etc. with reference to Fig. 8 the second bar portions 52 illustrated and tangles and be inclined by the second bar portion 52 and third bar portion that bottom plate 60 drives
53 line.
In Fig. 10, height Pa is indicated at the upper end for the slant range that the second bar portion 52 is configured at inclined floor 60
, the height of third bar portion.That is, when height Pa expressions are driven in the state that the second bar portion 52 is in contact with inclined floor 60
, the height of third bar portion 53.Height Pb indicates to be configured at caused by the restoring force by the first bar portion 51 the in the second bar portion 52
When the upper end of the moving range of two bar portions 52, third bar portion 53 height.That is, height Pb indicates to move in the second bar portion 52
When the second tilt quantity, third bar portion 53 height.
In the present embodiment, the first guide surface 88A and the second guide surface 88B of guiding groove 82 be in the up-down direction
Size is the difference Δ Ha or more of height Pa and height Pb.The the first guide surface 88A and the second guide surface 88B of guiding groove 82 are upper
The upward size in lower section is equivalent to from the upper of the lower face of guiding groove 82 84 to the first guide surface 88A and the second guide surface 88B
Size until end, in the present embodiment, the size refer to the distance of lower face 84 and upper surface 86 in the up-down direction.
That is, in the present embodiment, the size of the first guide surface 88A and the second guide surface 88B in the up-down direction is big
In the amount of movement of third bar portion 53 in the up-down direction.Even if the second bar portion 52 is inclined by the drive of bottom plate 60 as a result, can also press down
Third bar portion 53 processed is in contact and limits the movement of third bar portion 53 with the upper surface 86 of guiding groove 82.
As described above, according to the present embodiment, even if the second bar portion 52 of torsion bar 50 is by inclined floor 60
The wiring etc. of lower surface setting tangles, and also can be together moved upward with inclined floor 60 by the second bar portion 52, to inhibit
Excessive power acts on wiring etc..In addition, according to the present embodiment, hydraulic crawler excavator 1 has guiding third bar portion 53 so that its
The guide member 80 that can be moved in the up-down direction.Therefore, in the case where the second bar portion 52 is moved upward, third bar portion
53 can synchronously be moved upward with the second bar portion 52 to the guiding of guided member 80.Therefore, it is possible to inhibit the first bar portion 51
It is reversed to negative direction, inhibits the breakage of torsion bar 50.
In addition, according to the present embodiment, when restoring force of second bar portion 52 by the first bar portion 51 moves, third bar
Do not move and be constantly supported in the lower face 84 of guiding groove 82 in portion 53.Therefore, the restoring force of the first bar portion 51 is via second
Bar portion 52 is sufficiently transferred to inclined floor 60, so as to give full play to the auxiliary work(for making inclined floor 60 move by torsion bar 50
Energy.
In addition, according to the present embodiment, the mobile stopping of second bar portion 52 caused by the restoring force by the first bar portion 51
Afterwards, the power of the generation of gas spring 70 is continued through to carry out the tilting action of inclined floor 60.Therefore, in the movement of inclined floor 60
Leading portion be in the moving range of the second bar portion 52 caused by restoring force by the first bar portion 51, inclined floor 60 can pass through gas
Restoring force both power that the power and torsion bar 50 that spring 70 generates generate move.In addition, in the movement of inclined floor 60
After the movement of second bar portion 52 caused by restoring force of the back segment i.e. by the first bar portion 51, inclined floor 60 can pass through gas bullet
The power that spring 70 generates moves.Even if moreover, the second bar portion 52 after the mobile stopping caused by the restoring force by the first bar portion 51
Be inclined by bottom plate 60 drive when being moved upward, by make third bar portion 53 by guide member 80 guide with the second bar portion 52
It is synchronously moved upward, can also inhibit the breakage of torsion bar 50 and wiring etc..
In addition, in the present embodiment, the guiding groove 82 of the guide member 80 of configuration third bar portion 53 includes：Lower face
84, it can be contacted with third bar portion 53；First guide surface 88A, extends in the up-down direction；And the second guide surface 88B,
It extends in the up-down direction, and opposed across with gap with the first guide surface 88A.Pass through the first guide surface 88A and second
Guide surface 88B limits the movement of third bar portion 53 in the vehicle width direction, therefore third bar portion 53 can be steady in the up-down direction
Surely mobile.
In addition, in the present embodiment, the upper end of the slant range of inclined floor 60 will be configured in the second bar portion 52
When, the height of third bar portion 53 be set as Pa, will be configured at caused by the restoring force by the first bar portion 51 in the second bar portion 52
When the upper end of the moving range of two bar portions 52, third bar portion 53 height is set as Pb, guiding groove 82 is in the up-down direction
Size be height Pa and height Pb difference more than.Thereby, it is possible to inhibit upper surface 86 phase of the third bar portion 53 with guiding groove 82
Contact and the movement of third bar portion 53 the case where being restricted.
In addition, in the present embodiment, in the state that third bar portion 53 is detached with the lower face 84 of guiding groove 82, first
The torsional deflection of bar portion 51 is substantially zero.In the state that third bar portion 53 is detached with the lower face 84 of guiding groove 82, the first bar
Portion 51 is the release conditions not twisted, therefore excessive power can be inhibited to act on torsion bar 50.
In addition, in the present embodiment, guiding groove 82 has upper surface 86.But it can be omitted upper surface 86.That is, guiding groove
82 may include lower face 84, the first guide surface 88A and the second guide surface 88B, and top opens.At this point, by by
The size of one guide surface 88A and the second guide surface 88B in the up-down direction is set as the difference of height Pa and height Pb or more, can
Third bar portion 53 is inhibited to fall off from guiding groove 82.
In addition, in the respective embodiments described above, it is assumed that working truck is hydraulic crawler excavator, but is not limited to hydraulic excavating
Machine.The torsion bar 50 and guide member 80 illustrated in the respective embodiments described above can be suitable for whole works with inclined floor
Industry vehicle.
Claims (6)
1. a kind of working truck, which is characterized in that including：
Inclined floor can obliquely be supported in vehicle frame by linkage；
Gas spring is supported in the vehicle frame, and the power of the inclined floor movement is made by generating, can be by the inclination bottom
Plate moves the first tilt quantity；
Torsion bar has：First bar portion is supported in the vehicle frame, can generate the restoring force relative to torsional deflection；The
Two bar portions are connect with the one end of first bar portion, can be at least part phase of the lower surface of the inclined floor
Contact；And third bar portion, it is connect with the other end of first bar portion, the torsion bar is by moving the inclined floor
Second tilt quantity smaller than first tilt quantity is moved to assist the movement of the inclined floor；And
Guide member is supported in the vehicle frame, and the third bar portion is guided to allow it to move in the up-down direction.
2. working truck according to claim 1, it is characterised in that：
After the mobile stopping of second bar portion caused by the restoring force by first bar portion, the gas is continued through
The power that spring generates moves the inclined floor,
When second bar portion is still moved upward after mobile stopping caused by the restoring force by first bar portion, institute
Third bar portion is stated to be moved upward with guiding by the guide member.
3. working truck according to claim 1 or 2, it is characterised in that：
The guide member has the guiding groove for third bar portion configuration,
The guiding groove includes：Lower face can be contacted with third bar portion；First guide surface, extends in the up-down direction；
And second guide surface, extend in the up-down direction, and opposed across with gap with first guide surface.
4. working truck according to claim 3, it is characterised in that：
The inclined floor moves in defined slant range,
The height of third bar portion when second bar portion is configured at the upper end of the slant range, described is set as Pa, and
And it is configured at the moving range of second bar portion caused by the restoring force by first bar portion in second bar portion
Upper end when, the height of the third bar portion is when being set as Pb,
The size of first guide surface and second guide surface in the up-down direction is the height Pa and the height
It is more than the difference of Pb.
5. working truck according to claim 3, it is characterised in that：
In the state that the third bar portion is detached with the lower face, the torsional deflection of first bar portion is zero.
6. working truck according to claim 4, it is characterised in that：
In the state that the third bar portion is detached with the lower face, the torsional deflection of first bar portion is zero.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2016/056139 WO2016108295A1 (en) | 2016-02-29 | 2016-02-29 | Work vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107306494A CN107306494A (en) | 2017-10-31 |
| CN107306494B true CN107306494B (en) | 2018-10-16 |
Family
ID=56284448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680000492.1A Active CN107306494B (en) | 2016-02-29 | 2016-02-29 | Working truck |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6033992B1 (en) |
| CN (1) | CN107306494B (en) |
| DE (1) | DE112016000022B4 (en) |
| WO (1) | WO2016108295A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019093727A1 (en) * | 2017-11-13 | 2019-05-16 | 한국오텍 주식회사 | Device for compensating for weight of heavy equipment boom |
| CN111845966B (en) * | 2020-06-22 | 2022-06-28 | 东风柳州汽车有限公司 | Over-and-under type driver's cabin suspension mechanism |
| US11878743B2 (en) | 2020-08-20 | 2024-01-23 | Doosan Bobcat North America Inc. | Assist mechanism for moving cab on power machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4253700A (en) * | 1978-07-24 | 1981-03-03 | Fiat Veicoli Industriali S.P.A. | Motor vehicle with tiltable cab |
| CN1497107A (en) * | 2002-10-23 | 2004-05-19 | 株式会社小松制作所 | Technical vehicle with sloping baseplate |
| CN101119886A (en) * | 2005-01-31 | 2008-02-06 | 株式会社小松制作所 | Working vehicle with tilt floor |
| CN201258028Y (en) * | 2008-05-26 | 2009-06-17 | 福田雷沃国际重工股份有限公司 | Turnover mechanism of driver's cab |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62143577U (en) * | 1986-03-05 | 1987-09-10 | ||
| JP4124870B2 (en) * | 1998-08-28 | 2008-07-23 | 株式会社竹内製作所 | Work vehicle |
| JP3809954B2 (en) * | 2002-10-23 | 2006-08-16 | 株式会社小松製作所 | Work vehicle with tilt floor |
| CN1922042A (en) * | 2003-12-17 | 2007-02-28 | 威廉·L·麦西萨克 | Vehicle with movable and inwardly tilting safety body |
-
2016
- 2016-02-29 CN CN201680000492.1A patent/CN107306494B/en active Active
- 2016-02-29 WO PCT/JP2016/056139 patent/WO2016108295A1/en active Application Filing
- 2016-02-29 DE DE112016000022.7T patent/DE112016000022B4/en active Active
- 2016-02-29 JP JP2016533226A patent/JP6033992B1/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4253700A (en) * | 1978-07-24 | 1981-03-03 | Fiat Veicoli Industriali S.P.A. | Motor vehicle with tiltable cab |
| CN1497107A (en) * | 2002-10-23 | 2004-05-19 | 株式会社小松制作所 | Technical vehicle with sloping baseplate |
| CN101119886A (en) * | 2005-01-31 | 2008-02-06 | 株式会社小松制作所 | Working vehicle with tilt floor |
| CN201258028Y (en) * | 2008-05-26 | 2009-06-17 | 福田雷沃国际重工股份有限公司 | Turnover mechanism of driver's cab |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112016000022B4 (en) | 2018-01-04 |
| JP6033992B1 (en) | 2016-11-30 |
| WO2016108295A1 (en) | 2016-07-07 |
| JPWO2016108295A1 (en) | 2017-04-27 |
| DE112016000022T5 (en) | 2016-12-01 |
| CN107306494A (en) | 2017-10-31 |
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