CN106395698A - Big arm with unequal thickness and aloft work platform - Google Patents
Big arm with unequal thickness and aloft work platform Download PDFInfo
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- CN106395698A CN106395698A CN201610808502.6A CN201610808502A CN106395698A CN 106395698 A CN106395698 A CN 106395698A CN 201610808502 A CN201610808502 A CN 201610808502A CN 106395698 A CN106395698 A CN 106395698A
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- arm
- joint arms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
- B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
- B66F11/044—Working platforms suspended from booms
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The invention provides a big arm with unequal thickness. The big arm with unequal thickness comprises a hollow base arm, and further comprises a second section arm which is connected inside the base arm in a sleeving manner and can stretch out of the base arm, a third section arm which is connected inside the second section arm in a sleeving manner and can stretch out of a stretching end of the second section arm, and a telescopic assembly which drives the second section arm and the third section arm to extend and retract, wherein the base arm has a rectangular cross section; the base arm comprises an upper half arm and a lower half arm which are formed, with a plane, which is perpendicular to the rectangular cross section and is parallel to the length direction of the rectangular cross section, adopted as the boundary; and the material thickness of the upper half arm is smaller than the material thickness of the lower half arm. Through the design, the self weight of the big arm with unequal thickness is decreased under the situation that the loading condition is met, the operation flexibility is improved, and the energy consumption of a power system is reduced. Besides, the invention further provides an aloft work platform adopting the big arm with unequal thickness.
Description
Technical field
The present invention relates to engineering machinery field, specifically, the present invention relates to one kind uniform thickness large arm and work high above the ground are not put down
Platform.
Background technology
Aerial work platform is a kind of advanced aerial operation machine, can greatly improve the work effect of aerial workmen
Rate, safety and comfortableness, and reduce labor intensity, it is widely used already in developed country.China's aerial work platform
Using also more and more extensive, such as initial general municipal road lamp maintenance, garden tree pruning etc., and with China's economy
Fast development, process building, industrial installation, overhaul of the equipments, Factory Building maintenance, shipbuilding, electric power, municipal administration, airport, communication, gardens,
Traffic etc. constantly increases to the demand of aerial work platform.
Large arm is the important motivity transmission part of aerial work platform, such as supports operating board by large arm and is in
Staff on operating board and weight.In order to improve power transmission efficiency, reduce the energy loss that large arm self gravitation causes,
Industry typically adopts the large arm of hollow-core construction, to mitigate the own wt of large arm.
Existing aerial work platform all to manufacture large arm using material in uniform thickness.It is known that large arm is in work
When be commonly angled relative to ground and tilt at an acute angle, therefore, from loading angle analysis, the upper half arm stress of large arm cross section is less, and
Lower half arm stress is larger.And weight can be supported although ensure that using the large arm of each several part uniform thickness, but increase work high above the ground
The weight of the whole machine of platform, and waste the material making large arm.
Content of the invention
In view of the above problems, the present invention is intended to provide one kind not uniform thickness large arm, including with perpendicular to its rectangular cross section and
The upper half arm being formed for boundary parallel to the plane of rectangular cross section length direction and lower half arm, and upper half arm material thickness is less than
Lower half arm material thickness, while meeting load-up condition, reduces the weight of large arm, reduces the work energy of dynamical system
Consumption.
Another object of the present invention aims to provide a kind of aerial work platform applying above-mentioned not uniform thickness large arm.
In order to solve the above problems, the present invention provides following technical scheme：
One kind not uniform thickness large arm, is applied to engineering working vehicle, it includes：Hollow basic arm in it, described basic arm tool
There is rectangular cross section, described basic arm is included with perpendicular to described rectangular cross section and parallel to rectangular cross section length direction
Upper half arm and lower half arm that plane is formed for boundary, and the material thickness of described upper half arm be less than described lower half arm material thick
Degree.
Further, described not uniform thickness large arm also includes：Two hollow joint arms in it, described two joint arms are socketed on described base
This arm is interior and can stretch out from described basic arm, and it has rectangular cross section, and described two joint arms are included with perpendicular to described square
Upper half arm and lower half arm that shape cross section and the plane parallel to rectangular cross section length direction are formed for boundary, described upper half arm
Material thickness bottom be less than described lower half arm material thickness.
Further, described not uniform thickness large arm also includes：Hollow three joint arms in it, described three joint arms are socketed on described two
Joint arm is interior and can stretch out from described two joint arm external parts, and it has rectangular cross section, and described three joint arms are included with perpendicular to institute
State rectangular cross section and upper half arm that the plane parallel to rectangular cross section length direction is formed for boundary and lower half arm, described on
The material thickness bottom of half arm is less than the material thickness of described lower half arm.
Further, this not uniform thickness large arm also include driving the telescopic component that described two joint arms are stretched with three joint arms.
Specifically, described telescopic component includes telescopic oil cylinder, stretches rope chain bar and return rope chain bar；Described telescopic oil cylinder includes cylinder
Cylinder and be socketed on expansion link in described cylinder barrel, the external part of described expansion link is connected with described basic arm, described cylinder barrel and institute
State two joint arms to connect；First sprocket wheel is installed with described telescopic oil cylinder, described two joint arms are installed with the second sprocket wheel, and described
The external part of the closer described expansion link of two sprocket wheels；Described one end stretching rope chain bar is fixed on described basic arm, the other end around
Cross described first sprocket wheel to be fixed in described three joint arms；Described time rope chain bar one end is fixed in described three joint arms, and the other end is solid
Bypass described second sprocket wheel to be fixed on described basic arm.
Preferably, the Inner Constitution telescopic cavity of described basic arm, two joint arms, three joint arms, described telescopic oil cylinder, the first chain
Wheel, the second sprocket wheel, stretch rope chain bar and return rope chain bar be arranged in described telescopic cavity.
It is preferred that the lower half arm of the upper half arm of described basic arm and basic arm is connected with welding manner.
It is preferred that the lower half arm of the upper half arm of described two joint arms and two joint arms is connected with welding manner.
It is preferred that the lower half arm of the upper half arm of described three joint arms and three joint arms is connected with welding manner.
Correspondingly, the present invention also provides a kind of aerial work platform, and the not uniform thickness that it is included described in above-mentioned any one is big
Car body and the operating board being connected with the described not uniform thickness large arm other end that arm is connected with described not uniform thickness large arm one end.
Compared with prior art, the invention has the advantages that：
1. compared with traditional large arm, the material thickness of its upper half arm is less than the material of lower half arm to the not uniform thickness large arm of the present invention
Material thickness, the situation of discontinuity when having considered large arm work, that is, the upper half arm stress on large arm cross section is little, therefore
The material thickness of upper half arm is less, and lower half arm then stress is larger, therefore lower half arm adopts the larger material of relative thickness.Pass through
Using this design, while ensureing large arm energy normal operation, also can save making material, and reduce its weight, so subtract
The little operating power consumption of dynamical system, enhances the motility of large arm operation.
2. the not uniform thickness large arm of the present invention is telescopic arms, and it includes basic arm, is socketed in described basic arm and can be from
Two joint arms stretched out in described basic arm, the three joint arms being socketed in described two joint arms and can stretching out from described two joint arm external parts
And drive the described two joint arms telescopic component flexible with three joint arms, in the presence of telescopic component, described two joint arms can be from base
Stretch out inside this arm or bounce back, described three joint arms can be stretched out inside two joint arms or be bounced back, and therefore can be adjusted according to job demand
The length of this not uniform thickness large arm whole, enhances the convenience of work high above the ground.Meanwhile, described telescopic component located at described basic arm,
In the inside telescopic cavity of two joint arms and three joint arms, and then reduce the abrasion of associated components, slow down that it is aging, extend and use the longevity
Life, and the structure of not uniform thickness large arm described in can making is more compact, maintenance simultaneously, safeguard more convenient.
3. correspondingly, the aerial work platform of the present invention applies above-mentioned not uniform thickness large arm, therefore, this aerial work platform
Equally there is above-mentioned not uniform thickness large arm.In addition, support arm and car body are passed through in one end of the aerial work platform of the present invention
Connect, the other end is connected with operating board by flexible linking arm, and junction is equipped with amplitude oil cylinder, and these technical characteristics all may be used
Improve simple operation, stability and safety of this aerial work platform etc. to a certain extent.
The aspect that the present invention adds and advantage will be set forth in part in the description, and these will become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description
The above-mentioned and/or additional aspect of the present invention and advantage will will become from the following description of the accompanying drawings of embodiments
Substantially with easy to understand, wherein：
Fig. 1 is the perspective view of the not uniform thickness large arm of the present invention；
Fig. 2 stretches out status architecture schematic diagram for the not uniform thickness large arm of the present invention；
Fig. 3 is the perspective view of the basic arm of not uniform thickness large arm of the present invention；
Fig. 4 is the rectangular cross section schematic diagram of basic arm B-B direction shown in Fig. 3；
Fig. 5 is the perspective view of two joint arms of not uniform thickness large arm of the present invention；
Fig. 6 be two joint arms C-C shown in Fig. 5 to rectangular cross section schematic diagram；
Fig. 7 is the perspective view of the three joint arms of not uniform thickness large arm of the present invention；
Fig. 8 be three joint arms D-D shown in Fig. 7 to rectangular cross section schematic diagram；
Fig. 9 is the perspective view of the not uniform thickness large arm of the present invention；
Figure 10 is the partial enlarged drawing of part A in Fig. 9；
Figure 11 is the partial enlarged drawing of part B in Fig. 9；
Figure 12 is the perspective view of the aerial work platform of the present invention.
Specific embodiment
Embodiments of the invention are described below in detail, the example of described embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents identical element, or has the element of similar functions.Reality below with reference to Description of Drawings
It is exemplary for applying example, is only used for explaining the present invention, and is not construed as limiting the claims.Additionally, if it is known that technology
Detailed description for illustrating the invention is characterized in that unnecessary, then to be omitted.
Refer to Fig. 1 to Fig. 8, the not uniform thickness large arm 2 of the present invention, be applied to engineering working vehicle, described engineering working vehicle bag
Include but be not limited to aerial work platform, excavator etc..Described not uniform thickness large arm 2 includes hollow basic arm 21 in it, described base
This arm 21 has rectangular cross section, and described basic arm 21 is included with perpendicular to described rectangular cross section and parallel to rectangular cross section
Upper half arm 211 and lower half arm 212 that the plane of length direction is formed for boundary, and the material thickness of described upper half arm 211 is less than
The material thickness of described lower half arm 212.Preferably, described upper half arm 211 adopts steel sheet material, and described lower half arm 212 adopts
Steel plate material.
Incorporated by reference to Fig. 3 and Fig. 4, it should be noted that described rectangular cross section, refer to perpendicular to described basic arm 2 axially
Section, such as shown in Fig. 4 along along Fig. 3 B-B direction cross section；And described putting down parallel to rectangular cross section length direction
Face, refer to described basic arm 21 bottom surface (on the basis of the putting position of basic arm 21 in Figure of description 3) parallel and in
The plane in spatial dimension residing for described basic arm 21.In the same manner, two joint arms 22 hereinafter described and three joint arms 23 each correspond to
Rectangular cross section and parallel to rectangular cross section length direction plane be also according to mentioned above principle definition.
Simultaneously need to explanation, described upper half arm 211 and lower half arm 212 are not strictly to carry out according to equipartition principle
Divide, but divided according to stressing conditions during described basic arm 21 operation, this from Fig. 4 it is also seen that.In the same manner,
Two joint arms 22 hereafter and each self-corresponding upper half arm of three joint arms 23 and corresponding lower half arm are also divided according to this principle.
As can be seen that in the present invention, due to employing not uniform thickness large arm 2, the upper half arm 211 of the basic arm 21 that it includes
Material thickness be less than described basic arm 21 lower half arm 212 material thickness, so, on the one hand due to described upper half arm 211
The external load being subject to during work is less, therefore can be designed to wall thickness less, on the other hand, due to described lower half arm 212 work
As when the external load that is subject to larger, so needing to form lower half arm using the larger material of thickness, to resist high-strength outer
Boundary's load, it is to avoid described not uniform thickness large arm 2 is overall to be broken off or cause flexural deformation.
Additionally, the deadweight of whole not uniform thickness large arm 2 can also be reduced using the upper half arm 211 of less material thickness, so
Reduce the operating power consumption of dynamical system.
Further, described not uniform thickness large arm 2 also includes hollow two joint arms 22 in it, and described two joint arms 22 are socketed on institute
State in basic arm 21 and can stretch out from described basic arm 21, it has rectangular cross section, and described two joint arms 22 are included to hang down
The straight upper half arm 221 being formed for boundary in described rectangular cross section and parallel to the plane of rectangular cross section length direction and lower half
Arm 222, the material thickness bottom of described upper half arm 221 is less than the material thickness of described lower half arm 222.Preferably, described upper half arm 221
Using steel sheet material, described lower half arm 222 adopts steel plate material.
Further, described not uniform thickness large arm 2 also includes hollow three joint arms 23 in it, and described three joint arms 23 are socketed on institute
State in two joint arms 22 and can stretch out from described two joint arm 22 external part, it has rectangular cross section, and described three joint arms 23 include
With perpendicular to described rectangular cross section and the upper half arm 231 that formed for boundary parallel to the plane of rectangular cross section length direction and
Lower half arm 232, the material thickness bottom of described upper half arm 231 is less than the material thickness of described lower half arm 232.Preferably, described upper half
Arm 231 adopts steel sheet material, and described lower half arm 232 adopts steel plate material.
It can be seen that, two joint arms 22 being socketed in described basic arm 21 by adopting and can stretching out from described basic arm 21 with
And the three joint arms 23 being socketed in described two joint arms 22 and can stretching out from described two joint arm 22 external part, effectively increase described
The not length of uniform thickness large arm 2, and its length can be adjusted by stretching out or bounce back, thus adapting to the working scene of differing heights；
Meanwhile, the material thickness of the upper half arm 221 of described two joint arms 22 is less than the material thickness of lower half arm 222, and three joint arms 23 is upper
The material thickness of half arm 231 is less than the material thickness of lower half arm 232, its design institute with the above-mentioned material thickness of basic arm 21
The effect reaching is consistent, while meeting load-up condition, saves needed for described two joint arms 22 of making and three joint arms 23
Material, reduce the weight of described two joint arms 22 and three joint arms 23, reduce the power consumption of dynamical system, also avoid described two sections
Arm 22 and three joint arms 23 are broken off or cause flexural deformation.
Preferably, the material thickness range of the upper half arm 211 of described basic arm 21 is 4-6 millimeter, the material of lower half arm 212
Thickness range is 5-8 millimeter；It is further preferred that the material thickness of the upper half arm 211 of described basic arm 21 is 5 millimeters, lower half
The material thickness of arm 212 is 6 millimeters.
Preferably, the material thickness range of the upper half arm 221 of described two joint arms 22 is 3-5 millimeter, the material of lower half arm 222
Thickness range is 5-8 millimeter；It is further preferred that the material thickness of the upper half arm 221 of described two joint arms 22 is 4 millimeters, lower half
The material thickness of arm 222 is 6 millimeters.
Preferably, the material thickness range of the upper half arm 231 of described three joint arms 23 is 2-4 millimeter, the material of lower half arm 232
Thickness range is 3-6 millimeter；It is further preferred that the material thickness of the upper half arm 231 of described basic arm 23 is 3 millimeters, lower half
The material thickness of arm 232 is 4 millimeters.
Refer to Fig. 9 to Figure 11, further, described not uniform thickness large arm 2 also includes driving described two joint arms 22 and three sections
The telescopic component that arm 23 stretches.Described telescopic component includes telescopic oil cylinder 24, stretching chain 27 and returns rope chain bar 28.
Specifically, described telescopic oil cylinder 24 includes the cylinder barrel 241 being fixed in described two joint arms 22 and is socketed on described cylinder
Expansion link 242 in cylinder 241, described expansion link 242 is hollow structure, the hollow structure (non-label) in described expansion link 242
Identical with cylinder barrel 241 internal cavity, it is provided with oil guide pipe (non-label) in described hollow structure.The external part of described expansion link 242
Be fixed on described basic arm 21 it is preferable that the external part end face of described expansion link 242 be fixed in by clamp 8 described basic
On arm 21.On described cylinder barrel 241, the external part near described expansion link 242 is provided with and is easy to described cylinder barrel 241 and is fixed on described two
Connecting portion in joint arm 22, described connecting portion may include pin shaft hole, by inserting bearing pin in described pin shaft hole, to realize institute
State cylinder barrel 241 to be fixed in described two joint arms 22.Certainly, the connecting portion of described cylinder barrel 241 also can located at described cylinder barrel 241 its
His position, such as middle part of cylinder barrel 241 etc..
Additionally, the first sprocket wheel 25 is installed with described telescopic oil cylinder 24, described two joint arms 22 are installed with the second sprocket wheel 26,
Described second sprocket wheel 26 with respect to described first sprocket wheel 25 closer to described cylinder barrel 241 external part；The described rope chain bar 27 stretched
One end is fixed on described basic arm 21, and the other end bypasses described first sprocket wheel 25 and is fixed in described three joint arms 23；Described time
One end of rope chain bar 28 is fixed in described three joint arms 23, and the other end bypasses described second sprocket wheel 26 and is fixed in described basic arm 21
On.Preferably, described first sprocket wheel 25 be on described telescopic oil cylinder 24 with external part it described away from one end
At oil cylinder head, described second sprocket wheel 26 is in described two joint arms 22 at the external part of described expansion link 242；By this knot
Structure mode, it can be ensured that cylinder barrel at the position of upper and lower ends that the first sprocket wheel 25 and the second sprocket wheel 26 can be divided into cylinder barrel 241
241 more smoothly move, and then drive steady transmission and the stretching motion of associated components；Certainly, described first sprocket wheel 25 and
Two sprocket wheels 26 also can arrange other correct positions, the such as first sprocket wheel 25 position in the middle part of cylinder barrel on cylinder barrel 241,
Or at the second sprocket wheel 26 position in the middle part of cylinder barrel 241 in two joint arms 22 etc..
Further, to pass through chain connector 29 affixed with stretching the respective termination of rope chain bar 27 for described time rope chain bar 28
In described three joint arms 23, and each termination is respectively and fixedly connected with the both sides of described chain connector 29；By this frame mode, have
It is easy to stretch rope chain bar 27, return and between rope chain bar 28 and three joint arms 23, preferably realize linkage effect.Certainly, stretch rope chain bar 27 and return
Rope chain bar 28 also can be realized and being fixedly connected of three joint arms 23 by different connection member respectively.
Further, described rope chain bar 27 of stretching is provided with chain detection apparatus；This chain detection apparatus can real-time detection phase
The state of pass chain, when related chain occurs fracture or exceeds default loosening value, it can send alarm signal, come true with this
The safety in utilization of not uniform thickness large arm 2 described in guarantor, and then guarantee the personal safety of operator and other related personnel.Specifically
, can be by chain detection apparatus located at stretching one end that rope chain bar 27 is connected with basic arm 21.
By above-mentioned design, can achieve the flexible, thus can need just of described two joint arms 22 and three joint arms 23 according to operation
The length of not uniform thickness large arm 2 described in adjusting promptly.Further, the inside of described basic arm 21, two joint arms 22 and three joint arms 23
Hollow structure constitute telescopic cavity, described telescopic oil cylinder 24, the first sprocket wheel 25, the second sprocket wheel 26, stretch rope chain bar 27 and return rope chain bar
28 are all in described telescopic cavity, so that the more compact structure of described not uniform thickness large arm 2, and then reduce the mill of associated components
Undermine and slow down that it is aging, extend its service life, and also maintenance and frequency of maintenance can be reduced, maintenance simultaneously, safeguard more convenient,
Maintenance and maintenance cost are relatively low, in addition, also can reduce to a certain extent making correlation outside because above-mentioned associated components expose
Personnel touch injured probability by mistake.Certainly, by telescopic oil cylinder 24, the first sprocket wheel 25, the second sprocket wheel 26, stretch rope chain bar 27 and return rope
Chain 28 grade part is also feasible located at telescopic cavity outer (i.e. on the outer wall of basic arm 21, two joint arms 22 and three joint arms 23).
Preferably, the upper half arm 211 of described basic arm 21 and lower half arm 212 are connected with welding manner.By welding, described
The connection of upper half arm 211 and lower half arm 212 can reach more firm effect.
In the same manner, the upper half arm 221 of described two joint arms 22 and lower half arm 222 are connected with welding manner, described three joint arms 23
Upper half arm 231 and lower half arm 232 are also connected with welding manner, all can reach the effect of firm connection.
Preferably, described in consider not uniform thickness large arm 2 technological it is also desirable in place setting strengthen
Plate, to improve safety coefficient.For example, in described basic arm 21, two joint arms 22 and the respective upper half arm of three joint arms 23 and corresponding
The inner surface of the junction of lower half arm and/or all fixed reinforcing plate of outer surface；Or, in described basic arm 21, two joint arm 22 and
One of any upper half arm of three joint arms 23 and the inner surface of junction of corresponding lower half arm and/or outer surface are installed with reinforcement
Plate；Certainly, also can by other means or approach setting reinforcing plate, as long as be capable of improve safety coefficient purpose.
Incorporated by reference to Figure 12, present invention also offers a kind of apply described in not uniform thickness large arm 2 aerial work platform, this
Outward, this aerial work platform also includes car body 1, operating board 3, support arm 4, amplitude oil cylinder 5 and flexible linking arm 6.
In a kind of embodiment, described not uniform thickness large arm 2 is non-telescoping, only includes described basic arm 21, therefore described
The length of thick large arm 2 is fixing,.
Preferably, one end of described not uniform thickness large arm 2 pass through described flexible linking arm 6 and described operating board 3 realize hinged,
Described in i.e., one end of uniform thickness large arm 2 is not hinged with described flexible linking arm 6, and described flexible linking arm 6 is with described operating board 3 even
Connect, described operating board 3 can realize a certain degree of extension and retraction in the horizontal direction of described flexible linking arm 6 further；
The other end of described not uniform thickness large arm 2 pass through support arm 4 hinged with described car body 1, that is, the other end of described not uniform thickness large arm 2 and
Described support arm 4 is hinged, and described support arm 4 is flexibly connected with the associated components on described car body 1；In addition, described not uniform thickness is big
Be provided with described amplitude oil cylinder 5 between one end of arm 2 and described flexible linking arm 6, correspondingly, described not uniform thickness large arm 2 another
Also it is provided with described amplitude oil cylinder 5 between end and described support arm 4, so that one end of described not uniform thickness large arm 2, flexible connection
Arm 6 and constitute a stable triangular structure and its interconnective amplitude oil cylinder 5 three between, and described not uniform thickness is big
The other end of arm 2, support arm 4 and also constitute a stable triangle knot and its interconnective amplitude oil cylinder 5 three between
Structure, and then make this aerial work platform have higher stability and safety in operation.Certainly, described not uniform thickness large arm
The other end of 2 one end, flexible linking arm 6 and and its interconnective amplitude oil cylinder 5 between, and described not uniform thickness large arm 2,
Support arm 4 and also can be provided with other functions part and its interconnective amplitude oil cylinder 5 between, is used for example as the phase of levelling function
Close part etc..
In another kind of embodiment, described not uniform thickness large arm 2 is telescopic arms, and it includes above-mentioned basic arm 21, is socketed on
In described basic arm 21 and can stretch out from basic arm 21 two joint arms 22, be socketed in described two joint arms 22 and can be from two joint arms
Three joint arms 23 and described telescopic component that 22 external parts stretch out.In the presence of described telescopic component, can achieve described two joint arms
22 and three joint arms 23 flexible.
Preferably, described three joint arms 23 pass through described flexible linking arm 6 and described operating board 3 realize hinged, that is, described three
Joint arm 23 is hinged with described flexible linking arm 6, and described flexible linking arm 6 is connected with described operating board 3, and described operating board 3 can be
A certain degree of extension and retraction is realized further on the horizontal direction of described flexible linking arm 6；Described basic arm 21 passes through to prop up
Brace 4 is hinged with described car body 1, and that is, described basic arm 21 is hinged with described support arm 4, on described support arm 4 and described car body 1
Associated components be flexibly connected；In addition, being provided with described amplitude oil cylinder 5, phase between described three joint arms 23 and described flexible linking arm 6
Ying Di, is also provided with described amplitude oil cylinder 5 between described basic arm 21 and support arm 4, so that described three joint arms 23, flexible company
Connect arm 6 and constitute a stable triangular structure and its interconnective amplitude oil cylinder 5 three between, and described basic arm
21st, support arm 4 and also constitute a stable triangular structure and its interconnective amplitude oil cylinder 5 three between, and then make
Obtain this aerial work platform and there is in operation higher stability and safety.Certainly, described three joint arms 23, flexible linking arm
6 and and its interconnective amplitude oil cylinder 5 between, and described basic arm 21, support arm 4 and with its interconnective luffing oil
Other functions part also can be provided between cylinder 5, be used for example as associated components of levelling function etc..
When described aerial work platform need to rise arm operation, described two joint arms 22 are controlled to stretch out with three joint arms 23, now, with
The operating board 3 that described not uniform thickness large arm 2 connects can synchronous under the drive of described three joint arms 23 stretch out, and meanwhile, also can control phase
Amplitude oil cylinder 5, support arm 4 and the flexible linking arm 6 closing, to adjust extension angle or the position of associated arm, arrives up to operating board 3
Reach default operating position or maximum extension stroke.
In the same manner, when aerial work platform need to receive arm operation, described two joint arms 22 are controlled to bounce back with three joint arms 23, now,
Can synchronous under the drive of described three joint arms 23 bounce back with the operating board 3 that uniform thickness large arm 2 is not connected, meanwhile, also controllable correlation
Amplitude oil cylinder 5, support arm 4 and flexible linking arm 6 adjusting angle or the position of associated arm, until operating board 3 bounce back to pre-
If operating position or original non-extension state.
By using above-mentioned not uniform thickness large arm 2, described aerial work platform under meeting load-up condition, also in certain journey
The weight of whole machine being reduced on degree, thus reducing the energy consumption of dynamical system, enhancing the spirit of described aerial work platform operation
Activity.Meanwhile, described aerial work platform has preferable transmission performance, and has efficient stability, safety and transmission
Accuracy.
The above is only some embodiments of the present invention it is noted that ordinary skill people for the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. one kind not uniform thickness large arm, is applied to engineering working vehicle it is characterised in that including：Hollow basic arm in it, described base
This arm has rectangular cross section, and described basic arm is included with perpendicular to described rectangular cross section and parallel to rectangular cross section length
Upper half arm and lower half arm that the plane in direction is formed for boundary, and the material thickness of described upper half arm is less than the material of described lower half arm
Material thickness.
2. not uniform thickness large arm according to claim 1 is it is characterised in that also include：Two hollow joint arms in it, described two
Joint arm is socketed in described basic arm and can stretch out from described basic arm, and it has rectangular cross section, and described two joint arm bags
Include with perpendicular to described rectangular cross section and the upper half arm that formed for boundary parallel to the plane of rectangular cross section length direction and
Lower half arm, the material thickness bottom of described upper half arm is less than the material thickness of described lower half arm.
3. not uniform thickness large arm according to claim 2 is it is characterised in that also include：Hollow three joint arms in it, described three
Joint arm is socketed in described two joint arms and can stretch out from described two joint arm external parts, and it has rectangular cross section, and described three sections
Arm is included with perpendicular to described rectangular cross section and the upper half that formed for boundary parallel to the plane of rectangular cross section length direction
Arm and lower half arm, the material thickness bottom of described upper half arm is less than the material thickness of described lower half arm.
4. not uniform thickness large arm according to claim 3 is it is characterised in that also include driving described two joint arms to stretch with three joint arms
The telescopic component of contracting.
5. not uniform thickness large arm according to claim 4 is it is characterised in that described telescopic component includes telescopic oil cylinder, stretches rope
Chain and time rope chain bar；Described telescopic oil cylinder includes cylinder barrel and is socketed on expansion link in described cylinder barrel, the stretching of described expansion link
Go out end to be connected with described basic arm, described cylinder barrel is connected with described two joint arms；First sprocket wheel, institute are installed with described telescopic oil cylinder
State and the second sprocket wheel is installed with two joint arms, and the external part of the closer described expansion link of described second sprocket wheel；Described stretch rope chain bar
One end be fixed on described basic arm, the other end bypasses described first sprocket wheel and is fixed in described three joint arms；Described time rope chain
Bar one end is fixed in described three joint arms, and the other end admittedly bypasses described second sprocket wheel and is fixed on described basic arm.
6. not uniform thickness large arm according to claim 5 is it is characterised in that described basic arm, two joint arms, the inside of three joint arms
Constitute telescopic cavity, described telescopic oil cylinder, the first sprocket wheel, the second sprocket wheel, stretch rope chain bar and return rope chain bar be arranged at described flexible
In chamber.
7. the not uniform thickness large arm according to claim 1 to 6 any one is it is characterised in that the upper half arm of described basic arm
Connected with welding manner with the lower half arm of basic arm.
8. the not uniform thickness large arm according to claim 2 to 6 any one is it is characterised in that the upper half arm of described two joint arms
Connected with welding manner with the lower half arm of two joint arms.
9. the not uniform thickness large arm according to claim 3 to 6 any one is it is characterised in that the upper half arm of described three joint arms
Connected with welding manner with the lower half arm of three joint arms.
10. a kind of aerial work platform it is characterised in that include claim 1 to 9 any one described in not uniform thickness large arm,
The car body being connected with described not uniform thickness large arm one end and the operating board being connected with the described not uniform thickness large arm other end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610808502.6A CN106395698A (en) | 2016-09-06 | 2016-09-06 | Big arm with unequal thickness and aloft work platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610808502.6A CN106395698A (en) | 2016-09-06 | 2016-09-06 | Big arm with unequal thickness and aloft work platform |
Publications (1)
| Publication Number | Publication Date |
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| CN106395698A true CN106395698A (en) | 2017-02-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201610808502.6A Pending CN106395698A (en) | 2016-09-06 | 2016-09-06 | Big arm with unequal thickness and aloft work platform |
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| Country | Link |
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| CN (1) | CN106395698A (en) |
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Application publication date: 20170215 |