CN110182697A - A kind of wheeled crane of vehicle frame tail portion Telescopic movable - Google Patents
A kind of wheeled crane of vehicle frame tail portion Telescopic movable Download PDFInfo
- Publication number
- CN110182697A CN110182697A CN201910303985.8A CN201910303985A CN110182697A CN 110182697 A CN110182697 A CN 110182697A CN 201910303985 A CN201910303985 A CN 201910303985A CN 110182697 A CN110182697 A CN 110182697A
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- China
- Prior art keywords
- vehicle frame
- tail portion
- frame tail
- crane
- wheeled crane
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/14—Understructures, i.e. chassis frame on which a vehicle body may be mounted of adjustable length or width
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
- B66C23/36—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/72—Counterweights or supports for balancing lifting couples
- B66C23/78—Supports, e.g. outriggers, for mobile cranes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Jib Cranes (AREA)
Abstract
The wheeled crane of a kind of vehicle frame tail portion Telescopic movable, comprising: crane main body, vehicle frame turn to axle assembly, vehicle frame tail portion, stretching structure, tire, counterweight, counterweight are fixed on vehicle frame tail portion, and the rear end that vehicle frame tail portion is mounted on vehicle frame changes body gravity size by stretching structure.The wheeled crane of vehicle frame tail portion of the present invention Telescopic movable increases the vehicle frame position of centre of gravity size of wheeled crane by the flexible design to vehicle frame tail portion extension type, stablizes stability when lifting operation；Vehicle own wt is reduced in the case where guaranteeing working load, is reached energy-efficient technical effect, and can reduce destruction of the wheeled heavy-duty equipment to ground, is extended the service life on ground.
Description
Technical field
The present invention relates to crane technical field, specially a kind of wheeled crane of vehicle frame tail portion Telescopic movable.
Background technique
Common portal crane, such as container face crane, heavy forklift and wheeled crane, rely primarily on whole
The stable equilibrium torque of center of gravity, the formation of position of centre of gravity size that vehicle specially designs carrys out balance crane work torque, to reach
The job requirement of normal hoisting operation.The general center of gravity of such crane and position of centre of gravity size is fixed or the movable part of small distance
The change position of centre of gravity size of moving counterweight by a small margin, is on the one hand difficult to increase considerably the work torque of crane, another party
Face cannot reduce complete machine self weight by increasing position of centre of gravity size.Cause following adverse effects: firstly, wheeled crane body
It is overweight to cause operating power consumption larger, violate energy-efficient target；Secondly, heavier wheeled crane applies large wheel to ground
Pressure reduces the service life on stress ground.
Summary of the invention
The invention patent breaks through above-mentioned technical bottleneck existing in the prior art, and crane weight can be significantly increased by providing one kind
Heart position dimension makes the maximized technical solution of mobile component weight, greatly increases the ability to work of wheeled crane, simultaneously
The weight of vehicle itself is greatly reduced, reaches energy-efficient technical effect.
The wheeled crane of a kind of vehicle frame tail portion Telescopic movable, comprising: crane main body 1, vehicle frame 2, steeraxle is total
At 3, vehicle frame tail portion 4, stretching structure 5, tire 6, counterweight 7, crane main body 1 is mounted on vehicle frame 2 by linking arm, vehicle frame
The front end of body 2 and the rear end of vehicle frame tail portion 4 are equipped with tire 6 by steering axle assembly 3, and counterweight 7 is equipped on vehicle frame tail portion 4,
It is machined with the hollow cavity being connected to vehicle frame rear end face in vehicle frame 2, stretching structure 5 is installed in the hollow cavity, is stretched
The expansion end of shrinking structure 5 is fixedly connected with vehicle frame tail portion 4, and the fixing end of stretching structure 5 is fixedly connected and stretches with vehicle frame 2
Structure 5 runs through the hollow cavity, and 4 rear end of vehicle frame tail portion is at least fixed with one group of tire 6 by turning to axle assembly 6；Flexible knot
Vehicle frame tail portion 4 is located in the hollow cavity of vehicle frame 2 under 5 contraction state of structure, and vehicle frame tail portion 4 is extended in described under extension state
Cavity body is to increase crane position of centre of gravity size.
Drawing and pulling type movement of the vehicle frame tail portion 4 in vehicle frame 2 is realized by stretching structure 5, on the one hand, in original complete machine weight
Crane position of centre of gravity size is greatly increased on the basis of amount, so that machine gravity is moved back raising operation while improving work capacity
Organism stability under state.On the other hand, it not will increase main screw lift while improving work capacity, maintain ground that can bear
Achieve the effect that while wheel load energy-efficient.
Preferably, the wheeled crane of vehicle frame tail portion Telescopic movable, the stretching structure 5 are hydraulically extensible oil
Cylinder, wherein cylinder block is fixed end structure, and oil cylinder piston axis is expansion end structure, by PLC hydraulic control system control into
Oil mass and then the collapsing length for controlling hydraulically extensible oil.
Preferably, the wheeled crane of vehicle frame tail portion Telescopic movable, the stretching structure 5 are servo motor and rolling
The fabricated structure of ballscrew, wherein servo motor is fixed end structure, and ball screw is expansion end structure, vehicle frame tail portion 4
Length direction be machined with the matched screw thread of ball screw surface screw thread or 4 length direction of vehicle frame tail portion be machined with receiving rolling
Be welded in the blind hole and blind hole of ballscrew with the matched swivel nut of ball screw, pass through PLC industrial personal computer control servo motor
Operating so that control 4 relative frame body 2 of vehicle frame tail portion stroke.
Preferably, the length of the wheeled crane of vehicle frame tail portion Telescopic movable, 2 hollow cavity of vehicle frame accounts for vehicle frame
The 1/4~1/2 of body total length.Hollow cavity should not the too long support strength that otherwise can excessively reduce vehicle frame；Hollow cavity mistake
Short can weaken by stretching vehicle frame tail portion 4 increases the purpose of crane position of centre of gravity size.
Preferably, the width both ends of the wheeled crane of vehicle frame tail portion Telescopic movable, vehicle frame tail portion 4 are respectively set
There is integrally formed telescopic segment 43, there are two the hollow cavity passed in and out for telescopic segment 43 and the hollow cavities for processing in vehicle frame 2
Body is symmetrically distributed in the two sides of vehicle frame width centreline, and telescopic segment 43 is connect with the expansion end of stretching structure 5.It may be selected
, the widthwise central of vehicle frame 2 is machined with the accommodating chamber for placing the components such as engine, wherein the hollow cavity starts with installation
The accommodating chamber of machine component is not connected to.
It is proved by many experiments that pushing the telescopic segment 43 of 4 width two sides of vehicle frame tail portion to pass in and out vehicle frame by stretching structure 5
The hollow cavity of 2 width two sides of body realizes that expanding-contracting action in wheeled crane operation process can be improved in the flexible of vehicle frame tail portion 4
It is qualitative to improve stable gravity center relative to the hollow cavity in the middle part of single telescopic segment 43 disengaging 2 width of vehicle frame for stability.Certainly,
Vehicle frame tail portion 4 in the present invention can also be extended to by the single telescopic segment 43 for being located at middle part positioned at 2 widthwise central position of vehicle frame
Hollow cavity in complete connection, specific embodiment will be changed according to the specific requirement of client.
Preferably, the wheeled crane of vehicle frame tail portion Telescopic movable is machined in the width direction of vehicle frame 2 more
It is a side by side and the hollow cavity that is not communicated with, and vehicle frame tail portion 4 is connected with by stretching structure 5 in each hollow cavity.In vehicle
4 structure of vehicle frame tail portion that multiple carrying counterweights 7 are provided in the width direction of frame body 2 can be further improved complete machine width direction
On the counterweight uniformity, further increase complete machine work stable gravity center it is qualitative, relatively suitable for fuselage width it is larger-size wheeled
Crane.
Preferably, the wheeled crane of vehicle frame tail portion Telescopic movable, the lower end surface of vehicle frame tail portion 4 are machined with one
Or the supporting leg mounting groove 41 of multiple indents, rotary type, collapsible or cylinder contraction type are equipped in supporting leg mounting groove 41
Auxiliary support assembly 42.When the elongation of vehicle frame tail portion 4 is larger, can by one or more Auxiliary support assemblies 42 it is additional after
End tire 6 with ground contact support improve crane complete machine intensity, due to Auxiliary support assembly 42 can by rotation or
Folding shrinking is into supporting leg mounting groove 41, so the drawing and pulling type of entire 4 relative frame body 2 of vehicle frame tail portion will not be interfered to operate.
Preferably, the supporting leg 42 of the wheeled crane of vehicle frame tail portion Telescopic movable, 4 lower end surface of vehicle frame tail portion is in
The matrix arrangement of existing N × M formula, wherein N, M are the natural number greater than 1.
Preferably, the wheeled crane of vehicle frame tail portion Telescopic movable, Auxiliary support assembly 42 is by supporting leg and branch
The tire of support leg bottom connection forms, and the tire in Auxiliary support assembly 42 is universal rotary type installation.The auxiliary of tire construction
Support assembly 42 is completed can additionally increase main screw lift while cushioning supportive effect, can also reduce complete machine weight on the contrary
Amount, reduces energy consumption, and the tire of universal rotational installation can be flexibly turned to the steering of wheeled crane.
Preferably, the wheeled crane of vehicle frame tail portion Telescopic movable can ibid be processed in the rear end of vehicle frame 2
There is the supporting leg mounting groove of indent and Auxiliary support assembly is installed in the supporting leg mounting groove extension type.
Detailed description of the invention:
Specific embodiment is further described with reference to the accompanying drawing, in which:
Fig. 1 is the structure chart of vehicle frame tail portion retracted mode in wheeled crane of the present invention；
Fig. 2 is the structure chart that state is stretched out in vehicle frame tail portion in wheeled crane of the present invention；
Fig. 3 is the structure side view schematic diagram of vehicle frame tail portion in wheeled crane of the present invention；
Fig. 4 is that the structure of vehicle frame tail portion in wheeled crane of the present invention overlooks schematic diagram；
Fig. 5 is the structure schematic diagram for the vehicle frame being embodied in case 1 in wheeled crane of the present invention；
It is as follows to number corresponding specific structure:
Crane main body 1, vehicle frame 2 turn to axle assembly 3, vehicle frame tail portion 4, supporting leg mounting groove 41, Auxiliary support assembly
42, telescopic segment 43, stretching structure 5, tire 6, counterweight 7；
The present invention that the following detailed description will be further explained with reference to the above drawings.
Specific embodiment
Case 1 is embodied:
The wheeled crane of a kind of vehicle frame tail portion Telescopic movable, comprising: crane main body 1, vehicle frame 2, steeraxle is total
At 3, vehicle frame tail portion 4, stretching structure 5, tire 6, counterweight 7, crane main body 1 is mounted on vehicle frame 2 by linking arm, vehicle frame
The front end of body 2 and the rear end of vehicle frame tail portion 4 are equipped with tire 6 by steering axle assembly 3, and counterweight 7 is equipped on vehicle frame tail portion 4,
It is machined with the hollow cavity being connected to vehicle frame rear end face in vehicle frame 2, stretching structure 5 is installed in the hollow cavity, is stretched
The expansion end of shrinking structure 5 is fixedly connected with vehicle frame tail portion 4, and the fixing end of stretching structure 5 is fixedly connected and stretches with vehicle frame 2
Structure 5 runs through the hollow cavity, and 4 rear end of vehicle frame tail portion is at least fixed with one group of tire 6 by turning to axle assembly 6；Flexible knot
Vehicle frame tail portion 4 is located in the hollow cavity of vehicle frame 2 under 5 contraction state of structure, and vehicle frame tail portion 4 is extended in described under extension state
Cavity body is to increase crane position of centre of gravity size.
Wherein, the stretching structure 5 is hydraulically extensible oil, and wherein cylinder block is fixed end structure, oil cylinder piston axis
For expansion end structure, the collapsing length of hydraulically extensible oil, vehicle frame are controlled in turn by PLC hydraulic control system control oil inlet quantity
The length of 2 hollow cavity of body accounts for 1/4,1/3 or the 1/2 of vehicle frame total length.
Further, the width both ends of vehicle frame tail portion 4 are respectively arranged with integrally formed telescopic segment 43, add in vehicle frame 2
There are two the hollow cavities and the hollow cavity that pass in and out for telescopic segment 43 to be symmetrically distributed in the two of vehicle frame width centreline for work
Side, telescopic segment 43 are connect with the expansion end of stretching structure 5.Selectable, the widthwise central of vehicle frame 2 is machined with placement and starts
The accommodating chamber of the components such as machine, wherein the hollow cavity is not connected to the accommodating chamber of installation engine components.
Further, the lower end surface of each vehicle frame tail portion 4 is machined with the supporting leg mounting groove 41 an of indent, supporting leg peace
Rotary type, collapsible or cylinder contraction type are equipped with Auxiliary support assembly 42 in tankage 41.
Selectable, Auxiliary support assembly 42 is made of supporting leg, the tire connecting with supporting leg bottom.
The wheeled crane of vehicle frame tail portion of the present invention Telescopic movable, by being set to vehicle frame tail portion extension type
Meter flexibly increases the position of centre of gravity size of wheeled crane, stablizes stability when lifting operation；In the feelings for guaranteeing working load
Vehicle own wt is reduced under condition, reaches energy-efficient technical effect, and can reduce wheeled heavy-duty equipment to ground
It destroys, extends the service life on ground.
Case 2 is embodied:
The wheeled crane of a kind of vehicle frame tail portion Telescopic movable, comprising: crane main body 1, vehicle frame 2, steeraxle is total
At 3, vehicle frame tail portion 4, stretching structure 5, tire 6, counterweight 7, crane main body 1 is mounted on vehicle frame 2 by linking arm, vehicle frame
The front end of body 2 and the rear end of vehicle frame tail portion 4 are equipped with tire 6 by steering axle assembly 3, and counterweight 7 is equipped on vehicle frame tail portion 4,
It is machined with the hollow cavity being connected to vehicle frame rear end face in vehicle frame 2, stretching structure 5 is installed in the hollow cavity, is stretched
The expansion end of shrinking structure 5 is fixedly connected with vehicle frame tail portion 4, and the fixing end of stretching structure 5 is fixedly connected and stretches with vehicle frame 2
Structure 5 runs through the hollow cavity, and 4 rear end of vehicle frame tail portion is at least fixed with one group of tire 6 by turning to axle assembly 6；Flexible knot
Vehicle frame tail portion 4 is located in the hollow cavity of vehicle frame 2 under 5 contraction state of structure, and vehicle frame tail portion 4 is extended in described under extension state
Cavity body is to increase crane position of centre of gravity size.
Wherein, the fabricated structure that stretching structure 5 is servo motor and ball screw is stated, wherein servo motor is fixing end
Structure, ball screw are expansion end structure, and the length direction of vehicle frame tail portion 4 is machined with matched with ball screw surface screw thread
Screw thread or 4 length direction of vehicle frame tail portion are machined with the blind hole for accommodating ball screw and are welded with and ball screw in blind hole
Matched swivel nut, vehicle frame tail portion 4 are connected through a screw thread with ball screw, by PLC industrial personal computer control servo motor operating into
And control the stroke of 4 relative frame body 2 of vehicle frame tail portion.The length of 2 hollow cavity of vehicle frame account for vehicle frame total length 1/4,
1/3 or 1/2.
Further, the lower end surface of vehicle frame tail portion 4 is machined with the supporting leg mounting groove of 2 × 3 indents of matrix arrangement
41, rotary type, collapsible or cylinder contraction type are equipped with Auxiliary support assembly 42 in supporting leg mounting groove 41.
Further, Auxiliary support assembly 42 is made of supporting leg, the tire connecting with supporting leg bottom, and Auxiliary support is total
It is universal rotary type installation at the tire in 42.Likewise, the supporting leg mounting groove of indent can be machined in the rear end of vehicle frame 2
And Auxiliary support assembly is installed in the supporting leg mounting groove extension type.
The wheeled crane of vehicle frame tail portion of the present invention Telescopic movable, by being set to vehicle frame tail portion extension type
Meter flexibly increases the position of centre of gravity size of wheeled crane, stablizes stability when lifting operation；In the feelings for guaranteeing working load
Vehicle own wt is reduced under condition, reaches energy-efficient technical effect, and can reduce wheeled heavy-duty equipment to ground
It destroys, extends the service life on ground.
Case 3 is embodied:
The wheeled crane of a kind of vehicle frame tail portion Telescopic movable, comprising: crane main body 1, vehicle frame 2, steeraxle is total
At 3, vehicle frame tail portion 4, stretching structure 5, tire 6, counterweight 7, crane main body 1 is mounted on vehicle frame 2 by linking arm, vehicle frame
The front end of body 2 and the rear end of vehicle frame tail portion 4 are equipped with tire 6 by steering axle assembly 3, and counterweight 7 is equipped on vehicle frame tail portion 4,
It is machined with the hollow cavity being connected to vehicle frame rear end face in vehicle frame 2, stretching structure 5 is installed in the hollow cavity, is stretched
The expansion end of shrinking structure 5 is fixedly connected with vehicle frame tail portion 4, and the fixing end of stretching structure 5 is fixedly connected and stretches with vehicle frame 2
Structure 5 runs through the hollow cavity, and 4 rear end of vehicle frame tail portion is at least fixed with one group of tire 6 by turning to axle assembly 6；Flexible knot
Vehicle frame tail portion 4 is located in the hollow cavity of vehicle frame 2 under 5 contraction state of structure, and vehicle frame tail portion 4 is extended in described under extension state
Cavity body is to increase crane position of centre of gravity size.
Wherein, the stretching structure 5 is hydraulically extensible oil, and wherein cylinder block is fixed end structure, oil cylinder piston axis
For expansion end structure, the collapsing length of hydraulically extensible oil, vehicle frame are controlled in turn by PLC hydraulic control system control oil inlet quantity
The length of 2 hollow cavity of body accounts for 1/4,1/3 or the 1/2 of vehicle frame total length.
Further, be machined in the width direction of vehicle frame 2 it is multiple side by side and the hollow cavity that is not communicated with, and it is each in
Vehicle frame tail portion 4 is all connected with by stretching structure 5 in cavity body.Wherein the single telescopic segment 43 at 4 middle part of vehicle frame tail portion extends to
The connection of two components is completed in the hollow cavity of 2 widthwise central position of vehicle frame.
Further, the lower end surface of each vehicle frame tail portion 4 is machined with the supporting leg mounting groove 41 an of indent, supporting leg peace
Rotary type, collapsible or cylinder contraction type are equipped with Auxiliary support assembly 42 in tankage 41.
Selectable, Auxiliary support assembly 42 is made of supporting leg, the tire connecting with supporting leg bottom.
The wheeled crane of vehicle frame tail portion of the present invention Telescopic movable, by being set to vehicle frame tail portion extension type
Meter flexibly increases the position of centre of gravity size of wheeled crane, stablizes stability when lifting operation；In the feelings for guaranteeing working load
Vehicle own wt is reduced under condition, reaches energy-efficient technical effect, and can reduce wheeled heavy-duty equipment to ground
It destroys, extends the service life on ground.
The position of centre of gravity size for increasing wheeled crane for the flexible design of above-mentioned vehicle frame tail portion extension type, increases
The illustration of Beijing South Maxpower Technology Co. Ltd's power is as follows:
According to principle of moment balance:
M=G0S0+G1S1 (1)
M--- work torque, the stable car body gravity of 60---, S0- vehicle original center of gravity, the gravity of G1--- vehicle frame tail portion 4,
The shift motion of S1-- vehicle frame tail portion 4.
Defining original state work torque is M1, and the work torque that state is stretched out in vehicle frame tail portion 4 is M2.
Work as S1When=0,
Work as S1When=Δ S,
M2=G0S0+G1ΔS
M2-M1=G1Δ S > 0
Or
It takesThen
It takesWherein t is unit ton, then
Therefore work torque M2 increases 36%, can meet the operating condition operation of the work torque of increase 36%.
The telescopic wheeled crane in vehicle frame tail portion 4 is to be realized by tire running with load material transfer.
Because trimming moment is the product of gravity and acting force arm, if work torque increases 36% in this example, there are two types of sides
Method increases torque.First is that increasing gravity or the arm of force respectively.Second is that increasing gravity and the arm of force simultaneously.It is usually adopted in actual design
With latter method, therefore when increasing the arm of force 36%, gravity increase G '1It is following to calculate:
According to formula 1, when S=6 meters of wheelbase, S=2 meters of 4 overhang Δ of vehicle frame tail portion, G=60t, G1=27t stablizes car body
Center of gravity S0=3,8 meters, M2 increases 36% value added
ΔM2=G '1Δ S=0.36G0S0, then
And G '1=G1+ΔG1, formula 2 is substituted into:
It can reduce complete vehicle weight 14t by the invention patent design according to wheeled crane in the calculating this example of formula 2, if this example
Routinely calculating complete vehicle weight is about
G=G0+GSuspender+GPreceding bridge+ΔG
=60+8+1,5+2,5+14=86t
Then this example invention, which calculates, makes vehicle loss of weight ratio 14/86=16, and 3%, because vehicle traveling consumption function is G.L,
Therefore vehicle power consumption reduction amount of the present invention isL is stroke.
So the invention patent can reduce vehicle road horsepower about 16%.
The telescopic wheeled crane in vehicle frame tail portion of the present invention can make equipment vehicle weight according to above-mentioned calculating certification
Amount reduces 16%, and 70 tons of this example Central Plains wheeled crane track hardened layer concrete thickness can be reduced from 30cm to 20cm,
Supporting Load Pavement cost about 25% is reduced, in addition using the wheeled crane of the invention patent to common road road surface, common shipping
Stockyard or platform ground, which are reduced, to be destroyed, and is improved service life.Furthermore when vehicle frame tail portion contracted length is in minimum state, vehicle
Length and turning radius will be 10%---35% fewer than same work torque crane, so wheeled crane of the present invention has
There is good road mobility, required work-yard is smaller, can the operation in narrow working space.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of wheeled crane of vehicle frame tail portion Telescopic movable, comprising: crane main body, vehicle frame turn to axle assembly, vehicle
Frame tail portion, stretching structure, tire, counterweight, crane main body are mounted on vehicle frame by linking arm, the front end of vehicle frame and vehicle
The rear end of frame tail portion is equipped with tire by turning to axle assembly, and vehicle frame is equipped with counterweight on tail portion, it is characterised in that: in vehicle frame
Be machined with the hollow cavity being connected to vehicle frame rear end face, stretching structure be installed in the hollow cavity, stretching structure can
Telescopic end is fixedly connected with vehicle frame tail portion, and the fixing end of stretching structure is fixedly connected with vehicle frame and stretching structure is in described
Cavity body, vehicle frame tail portion rear end are at least fixed with one group of tire by turning to axle assembly；Vehicle frame tail under stretching structure contraction state
Portion is located in the hollow cavity of vehicle frame, and the hollow cavity is extended in vehicle frame tail portion under extension state.
2. the wheeled crane of vehicle frame tail portion as described in claim 1 Telescopic movable, it is characterised in that: the stretching structure is
Hydraulically extensible oil, wherein cylinder block is fixed end structure, and oil cylinder piston axis is expansion end structure.
3. the wheeled crane of vehicle frame tail portion as described in claim 1 Telescopic movable, it is characterised in that: the stretching structure is
The fabricated structure of servo motor and ball screw, wherein servo motor is fixed end structure, and ball screw is expansion end knot
Structure, the length direction of vehicle frame tail portion is machined with to be added with the matched screw thread of ball screw surface screw thread or vehicle frame tail length direction
Work has the blind hole for accommodating ball screw and is welded with and the matched swivel nut of ball screw, vehicle frame tail portion and ball wire in blind hole
Bar is connected through a screw thread.
4. the wheeled crane of vehicle frame tail portion as described in claim 1 Telescopic movable, it is characterised in that: vehicle frame hollow cavity
Length account for the 1/4~1/2 of vehicle frame total length.
5. the wheeled crane of vehicle frame tail portion as described in claim 1 Telescopic movable, it is characterised in that: the width side of vehicle frame
Be machined with upwards it is multiple side by side and the hollow cavity that is not communicated with, vehicle frame tail is connected with by stretching structure in each hollow cavity
Portion.
6. the wheeled crane of vehicle frame tail portion Telescopic movable as described in any in Claims 1 to 5, it is characterised in that: vehicle frame
The lower end surface of tail portion is machined with the supporting leg mounting groove of one or more indents, rotary type in supporting leg mounting groove, collapsible
Or cylinder contraction type is equipped with Auxiliary support assembly.
7. the wheeled crane of vehicle frame tail portion as claimed in claim 6 Telescopic movable, it is characterised in that: vehicle frame tail portion lower end surface
Supporting leg the matrix arrangement of N × M formula is presented, wherein N, M are natural number greater than 1.
8. the wheeled crane of vehicle frame tail portion as claimed in claim 6 Telescopic movable, it is characterised in that: Auxiliary support assembly by
Supporting leg, the tire connecting with supporting leg bottom form, and the tire in Auxiliary support assembly is universal rotary type installation.
9. the wheeled crane of vehicle frame tail portion as described in claim 1 Telescopic movable, it is characterised in that: the rear end of vehicle frame adds
Work has the supporting leg mounting groove of indent and is equipped with Auxiliary support assembly in the supporting leg mounting groove extension type.
10. the wheeled crane of vehicle frame tail portion as described in claim 1 Telescopic movable, it is characterised in that: the width of vehicle frame tail portion
Degree both ends are respectively arranged with integrally formed telescopic segment, and there are two the hollow cavity for telescopic segment disengaging and institutes for processing in vehicle frame
State the two sides that hollow cavity is symmetrically distributed in vehicle frame width centreline, the expansion end connection of telescopic segment and stretching structure.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910303985.8A CN110182697B (en) | 2019-04-16 | 2019-04-16 | Wheeled crane with telescopic movable frame tail |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910303985.8A CN110182697B (en) | 2019-04-16 | 2019-04-16 | Wheeled crane with telescopic movable frame tail |
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| CN110182697B CN110182697B (en) | 2021-02-09 |
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| CN206799018U (en) * | 2017-06-13 | 2017-12-26 | 湖南中铁五新重工有限公司 | A kind of front swing-machine and its multiple assembly |
| CN207078934U (en) * | 2017-07-31 | 2018-03-09 | 金鹰重型工程机械有限公司 | A kind of face-up transporting hoist of container crane |
-
2019
- 2019-04-16 CN CN201910303985.8A patent/CN110182697B/en active Active
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| DE19743871A1 (en) * | 1997-10-04 | 1999-04-15 | Noell Stahl Und Maschinenbau G | Long-reach stacker crane |
| JP2003063778A (en) * | 2001-08-28 | 2003-03-05 | Tadano Ltd | Mobile crane |
| CN201284198Y (en) * | 2008-08-21 | 2009-08-05 | 徐州徐工随车起重机有限公司 | Built-in telescopic counterweight mechanism of lorry-mounted crane |
| CN103863951A (en) * | 2014-03-28 | 2014-06-18 | 滨州学院 | Container lifting and transporting device suitable for short-distance transportation |
| CN206799018U (en) * | 2017-06-13 | 2017-12-26 | 湖南中铁五新重工有限公司 | A kind of front swing-machine and its multiple assembly |
| CN207078934U (en) * | 2017-07-31 | 2018-03-09 | 金鹰重型工程机械有限公司 | A kind of face-up transporting hoist of container crane |
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| CN110182697B (en) | 2021-02-09 |
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