CN109264595A - A kind of adjusting method and regulating device of deformable truss arm - Google Patents
A kind of adjusting method and regulating device of deformable truss arm Download PDFInfo
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- CN109264595A CN109264595A CN201811359831.2A CN201811359831A CN109264595A CN 109264595 A CN109264595 A CN 109264595A CN 201811359831 A CN201811359831 A CN 201811359831A CN 109264595 A CN109264595 A CN 109264595A
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- Prior art keywords
- chord
- distance
- adjusting method
- point
- chord members
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Classifications
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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
- B66C23/64—Jibs
Abstract
The invention discloses a kind of adjusting methods of deformable truss arm, the truss arm includes symmetrically arranged two single fan structures, the list fan structure includes two chord members, and two intersection web member groups arranged side by side of two chord members of connection, each web member group of intersecting respectively includes two settings intersected with each other and the web member for being articulated with cross-articulation point, one end of the web member is hinged to the chord member by hinge joint, the other end of the web member is non-articulated end, the chord member is slidably attached to by sliding point, the adjusting method includes: by driving the chord member, the cross-articulation point, the hinge joint and/or the sliding point, to adjust the distance between two described chord members.The embodiment of the present invention is driven by chord member, cross-articulation point, hinge joint, and/or the sliding point to deformable ledge, to change the distance between two chord members, so that operation conveniently and efficiently be adjusted to truss arm section state.
Description
Technical field
The present invention relates to engineering machinery field more particularly to a kind of adjusting methods and regulating device of deformable truss arm.
Background technique
Crane arm is the structural member for being widely used in crane hoisting equipment, for height or movement that heavy lift is certain
A certain distance.A kind of organizations tructure of the truss arm (ledge) as crane arm, is to be welded into lattice by fashioned iron, tubing
The crane arm of structural member often connects into required length by several segments bolt or pin shaft.Truss crane arm is conducive to from heavy and light
The lifting performance of crane is improved, it is especially especially pronounced in the case where promoting the biggish situation of amplitude.And due to can be with segmentation group
Dress, convenient for the transition transport and maintenance replacement of crane arm, along with truss arm lifting process reliability is higher, in crane
In occupy biggish specific gravity.
Truss arm is lighter due to being self-possessed, and is conducive to the lifting performance for improving crane, but cancelled structure part is during fabrication
Craftsmanship is poor, and time-consuming also longer in assembly and disassembly process, brings larger inconvenience to actual use.In addition, with existing
For the continuous promotion that engineering machinery requires crane arm, crane arm needs to effectively adapt to lifting weight in larger scope,
Related truss arm generallys use the variation that the mode ressembled realizes sectional area, time-consuming and laborious, and assembling quality also cannot get
It ensures, is easy to produce security risk.
Summary of the invention
At least one purpose of the invention is the adjusting method and regulating device for proposing a kind of deformable truss arm, Neng Goufang
Just quickly realize that the adjusting to truss arm section state operates.Optimization technique side in many technical solutions provided by the invention
Many technical effects elaboration as detailed below that case can be generated.
To achieve the above object, the present invention provides following technical schemes:
A kind of adjusting method of deformable truss arm provided by the invention, the truss arm include symmetrically arranged two lists
Fan structure, the list fan structure include two chord members, and two intersection web members arranged side by side of two chord members of connection
Group, each web member group of intersecting respectively includes two settings intersected with each other and the web member for being articulated with cross-articulation point, the web member
One end the chord member is hinged to by hinge joint, the other end of the web member is non-articulated end, slideably by sliding point
Be connected to the chord member, the adjusting method include: by drive the chord member, cross-articulation point, the hinge joint and/
Or the sliding point, to adjust the distance between two described chord members.
The optimization of technical solution, described after any technical solution or any optimization that provide above or hereinafter as the present invention
Adjusting method includes: to apply to one of described chord member by driving the chord member to adjust the operation of the distance between two described chord members
Add the active force towards or away from another chord member, is expanded or shunk with controlling the distance between two described chord members.
The optimization of technical solution, described after any technical solution or any optimization that provide above or hereinafter as the present invention
Adjusting method includes: that single fan structure is placed in load plane to the operation that one of described chord member applies active force, and to institute
Chord member lifting is stated, so that two chord members have the difference in height of vertical direction.
The optimization of technical solution, described after any technical solution or any optimization that provide above or hereinafter as the present invention
Adjusting method is when lifting the chord member, by lifting the lifting force of the chord member application one to top straight up,
And the relative size relationship by controlling the lifting force and single fan structure gravity, to adjust between two chord members
Distance.
The optimization of technical solution, described after any technical solution or any optimization that provide above or hereinafter as the present invention
Adjusting method includes: to the intersection by driving the cross-articulation point to adjust the operation of the distance between two described chord members
Hinge joint applies the active force of opposite direction or opposite direction, is expanded or shunk with controlling the distance between two described chord members.
The optimization of technical solution, described after any technical solution or any optimization that provide above or hereinafter as the present invention
The operation that adjusting method applies active force to the cross-articulation point includes: that the adjacent friendship is connected by the first telescoping mechanism
The cross-articulation point in web member group is pitched, and controls the telescopic direction and stretching speed of first telescoping mechanism, to adjust
The distance between two described chord members.
The optimization of technical solution, described after any technical solution or any optimization that provide above or hereinafter as the present invention
The operation that adjusting method applies active force to the cross-articulation point includes: that the adjacent intersection abdomen is connected by the first lifting rope
The cross-articulation point in bar group, and single fan structure is lifted by first lifting rope, to adjust two chord members
The distance between.
The optimization of technical solution, described after any technical solution or any optimization that provide above or hereinafter as the present invention
Adjusting method controls the length of first lifting rope when lifting single fan structure, adjusts described the using suspension centre as vertex
One lifting rope itself size angle formed, to change the speed that distance is expanded or shunk between two chord members.
The optimization of technical solution, described after any technical solution or any optimization that provide above or hereinafter as the present invention
Adjusting method includes: to apply to the hinge joint by driving the hinge joint to adjust the operation of the distance between two described chord members
Add the active force of opposite direction or opposite direction, is expanded or shunk with controlling the distance between two described chord members.
The optimization of technical solution, described after any technical solution or any optimization that provide above or hereinafter as the present invention
Adjusting method includes: to be located at two chord members by the connection of the second lifting rope to the operation that the hinge joint applies active force
The hinge joint, and single fan structure is lifted by second lifting rope, to adjust the distance between two described chord members.
The optimization of technical solution, described after any technical solution or any optimization that provide above or hereinafter as the present invention
Adjusting method controls the length of second lifting rope when lifting single fan structure, adjusts described the using suspension centre as vertex
Two lifting ropes itself size angle formed, to change the speed that distance is expanded or shunk between two chord members.
The optimization of technical solution, described after any technical solution or any optimization that provide above or hereinafter as the present invention
Adjusting method includes: to apply to the sliding point by driving the sliding point to adjust the operation of the distance between two described chord members
Add active force, so that the sliding point is slided along the chord member, is expanded or shunk with controlling the distance between two described chord members.
The optimization of technical solution, described after any technical solution or any optimization that provide above or hereinafter as the present invention
Sliding point described in adjusting method further includes pulley structure, and the operation for applying active force to the sliding point includes: by traction rope
The sliding point on one of one end and described chord member is connect, and makes the cunning on another chord member of the traction rope pile warp
Pulley mechanism on dynamic point, by pulling the other end of the traction rope, so that the sliding point is to close to or far from the hinge
The direction of contact is slided, to adjust the distance between two described chord members.
The optimization of technical solution, described after any technical solution or any optimization that provide above or hereinafter as the present invention
Adjusting method makes the operation of the pulley mechanism on sliding point described in the traction rope pile warp include: to keep the first traction rope pile warp another
Pulley mechanism on the ipsilateral sliding point of the sliding point being connect on chord member with first traction rope.
The optimization of technical solution, described after any technical solution or any optimization that provide above or hereinafter as the present invention
It is connected to each other between list fan structure described in adjusting method by bracket, the bracket is distributed on single fan structure described in two
The both ends of chord member further include fixed pulley assembly on the bracket, make the turbine on sliding point described in the traction rope pile warp
While structure, also makes to be located on another chord member of traction rope pile warp relative to the hinge joint and connect with first traction rope
The ipsilateral or not ipsilateral fixed pulley assembly of the sliding point.
The present invention also provides a kind of regulating devices of deformable truss arm, are configured with aforementioned described in any item
Adjusting method adjusts the distance between described chord member.
Based on the above-mentioned technical proposal, the embodiment of the present invention passes through chord member to deformable ledge, cross-articulation point, hinged
Point, and/or sliding point are driven, to change the distance between two chord members, thus conveniently and efficiently to truss arm section shape
Operation is adjusted in state.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of the deformable truss arm side view angle of the present invention；
Fig. 2 is the structural schematic diagram of the deformable positive angle of truss arm of the present invention；
Fig. 3 is that the chord member spacing state of turning down of deformable truss arm method of adjustment one embodiment provided by the present invention is illustrated
Figure；
Fig. 4 is that the chord member spacing state that tunes up of deformable truss arm method of adjustment one embodiment provided by the present invention is illustrated
Figure；
Fig. 5 is the side view angle schematic diagram of deformable truss arm method of adjustment one embodiment provided by the present invention；
Fig. 6 is that the chord member spacing state that tunes up of deformable truss arm method of adjustment one embodiment provided by the present invention is illustrated
Figure；
Fig. 7 is that the chord member spacing state of turning down of deformable truss arm method of adjustment one embodiment provided by the present invention is illustrated
Figure；
Fig. 8 is the side view angle schematic diagram of deformable truss arm method of adjustment one embodiment provided by the present invention；
Fig. 9 is that the chord member spacing state of turning down of deformable truss arm method of adjustment one embodiment provided by the present invention is illustrated
Figure；
Figure 10 is that the chord member spacing state of turning down of deformable truss arm method of adjustment one embodiment provided by the present invention is shown
It is intended to；
Figure 11 is that the chord member spacing state of turning down of deformable truss arm method of adjustment one embodiment provided by the present invention is shown
It is intended to；
Figure 12 is fixed pulley assembly structural schematic diagram in deformable truss arm provided by the present invention；
Figure 13 is that the chord member spacing state of turning down of deformable truss arm method of adjustment one embodiment provided by the present invention is shown
It is intended to；
Figure 14 is that the chord member spacing state that tunes up of deformable truss arm method of adjustment one embodiment provided by the present invention is shown
It is intended to；
Specific embodiment
It is referred to attached drawing below and word content understands between the contents of the present invention and the present invention and the prior art
Distinctive points.Hereafter attached drawing and by way of enumerating some alternative embodiments of the invention, to technical solution of the present invention
(including optimal technical scheme) is described in further detail.
It should be understood that any technical characteristic, any technical solution in the present embodiment are the technologies of plurality of optional
One or more of feature or optional technical solution, in order to describe it is succinct need it is impossible to exhaust of the invention in this document
All alternative technical characteristics and alternative technical solution, the embodiment for being also not easy to each technical characteristic are emphasized
It is one of for optional numerous embodiments, so those skilled in the art will appreciate that can will be provided by the invention any
Technological means is replaced or any two or more technical means or technical features provided by the invention is carried out mutually group
It closes and obtains new technical solution.
Any technical characteristic and any technical solution in the present embodiment do not limit the scope of the invention, this hair
Bright protection scope should include that those skilled in the art do not make the creative labor the thinkable any alternate embodiments of institute
And any two or more technical means or technical features provided by the invention are carried out mutually group by those skilled in the art
New technical solution obtained from conjunction.
1~14 pair of technical solution provided by the invention is illustrated in more detail with reference to the accompanying drawing:
The embodiment of the invention provides a kind of adjusting method of deformable truss arm, the truss arm includes symmetrically arranged
Two single fan structures, the list fan structure include two chord members, and two friendships arranged side by side of two chord members of connection
Web member group is pitched, each web member group of intersecting respectively includes two settings intersected with each other and the web member for being articulated with cross-articulation point, institute
The one end for stating web member is hinged to the chord member by hinge joint, and the other end of the web member is non-articulated end, can by sliding point
It is slidably coupled to the chord member, the adjusting method includes: by driving the chord member, cross-articulation point, the hinge
Contact and/or the sliding point, to adjust the distance between two described chord members.
As shown in Figure 1, since fan structure single in the present invention corresponds to each other setting, below to this hair by taking single fan structure 1 as an example
Adjusting method provided by bright is illustrated, and the structure type and adjusting form of single fan structure 2 and single fan structure 1 are opposite
It answers.As shown in Fig. 2, single fan structure 1 includes two chord members 11,12, between described two chord members 11,12 by intersect web member group 2,
3 are connected with each other, and the intersections web member group 2 is made of the web member 21,22 of setting intersected with each other, corresponding intersection web member group 3 then by
The web member 31,32 of setting intersected with each other is constituted.Each of described two intersection web member groups 2,3 web member 21,22,31,32
One end passes through the hinge joint 41,42 being located on the chord member 11,12, the non-articulated end of the web member 21,22,31,32
Then chord member 11,12 is slidably connected to by 23,24,33,34 respectively.
Based on the said structure design of single fan structure 1, when the distance between described two chord members 11,12 changes,
The web member 21,22,31,32 can be rotated with one end around the hinge joint 41,42, and the other end is with 23,24,33,34 edge of sliding point
The mode that the chord member 11,12 slides cooperates the distance between described two chord members 11,12 to change.For described two chord members
11, the stable structure between 12, present invention employs two intersection web member groups 2,3 arranged side by side, however those skilled in the art
Member it is to be understood that the connection of one group of intersection web member group can also be used only between described two chord members 11,12, or using three groups or
Three groups or more intersection web member groups need to only guarantee all to intersect only one each hinge between web member group and described two chord members 11,12
Contact in succession, to guarantee that single fan structure has enough freedom degrees for deformation.
Adjusting method provided by the present invention passes through to the chord member, cross-articulation point, the hinge joint and/or institute
It states sliding point to be adjusted, to control the distance between described two chord members 11,12.The adjusting method can only control above-mentioned
Single one kind in object is such as only adjusted cross-articulation point, to obtain the sensitivity more preferably deformed；It can also same time control
Make it is a variety of in above-mentioned object, such as simultaneously cross-articulation point and sliding point are adjusted, with obtain faster pace of change and
More stable variation adjustment process.
In fact, since the direction of motion between described two chord members 11,12 in the present invention is fixed opposite or phase
It is right, so that the direction of motion between control object is also the opposite and opposite of fixation.Such as the sliding point is being adjusted
When, by taking sliding point 23 as an example, sliding point 23 is located at the position of the web member 21 and 12 slidable connection of chord member, when described
Sliding point 23 to its where the end of the chord member 12 when moving, the acute angle between the web member 21 and the chord member 12 will be made
The distance between become smaller, and then make described two chord members 11,12 and reduces；Correspondingly, when the sliding point 23 is far from the string
The direction of 12 end of bar moves, and distance between described two chord members 11,12 will be promoted to expand.Based on this, describe for convenience, it will
Distance moves toward one another between described two chord members 11,12 caused by control object or relative motion is defined as the sliding point 23
The direction of motion, and extend to the hinge joint, cross-articulation point and the chord member.
Control method provided by the present invention also include accordingly to multiple control objects with the different direction of motion into
Row adjustment, such as with direction of relative movement control sliding point and to move toward one another direction controlling cross-articulation point, and control to institute
The adjustment dynamics of sliding point and cross-articulation point is stated, so that the control sensitivity to single fan structure further increases, and
The distance between described two chord members 11,12 can be fixed under a certain specific distance more stablely, to meet truss
The Deformation Demands of arm under specific circumstances.
Further, adjusting method provided by the embodiment of the present invention is by driving the chord member to adjust two chord members
The distance between operation include: to one of described chord member apply towards or away from another chord member active force, with control
The distance between two described chord members are expanded or shunk.
As shown in figure 3, adjusting method provided by the embodiment of the present invention, applies the operation of active force to one of described chord member
It include: single fan structure to be placed in load plane, and lift to the chord member, so that two chord members have vertical direction
Difference in height.By applying active force to one of described two chord members 11,12, two chord members is made to be in one high and one low shape
State, before lower chord member leaves the load plane, the list fan structure 1 will be inclined.List under heeling condition
Fan structure 1 is simultaneously by the support force provided by the lifting force of lifting chord member side, self gravity and load plane, and by upper
Component of three kinds of stress under heeling condition in 1 direction of single fan structure is stated as the described two chord members 11,12 of control
The active force of spacing.Therefore, institute can be changed by the difference in height between described two chord members 11,12 caused by lifting
The angle between single fan structure 1 and horizontal plane, and then the component size that control action is deformed in single fan structure 1 are stated, thus
Flexibly control the process of the truss arm deformation.
Further, adjusting method provided by the embodiment of the present invention is when lifting the chord member, when single fan knot
When structure 1 is sling completely and is detached from load plane, by lifting the promotion of the chord member application one to top straight up
Power, and the relative size relationship by controlling the lifting force and single fan structure gravity, with adjust two chord members it
Between distance.When the lifting force is greater than the gravity of single fan structure 1, described two chord members 11,12 will be in self gravity
And increase mutual spacing under the collective effect of lifting force.And as shown in figure 4, when lifting force is less than the weight of single fan structure 1
When power, the list fan structure 1 can drop back into load plane with vertical state, and be gradually reduced described two chord members under the effect of gravity
11, the distance between 12.
As shown in Fig. 5~7, adjusting method provided by the embodiment of the present invention is by driving the cross-articulation point to adjust two
The operation of the distance between a chord member includes: to apply the effect of opposite direction or opposite direction to the cross-articulation point
Power is expanded or shunk with controlling the distance between two described chord members.Pass through hinge joint 41,42, the company of cross-articulation point 20,30
It connects, web member 21,22,31,32 constitutes the quadrangle that can change angle, and wherein the line of hinge joint 41,42, which is used as, is somebody's turn to do
A diagonal line in the quadrangle of variable-angle changes the hinge joint by applying active force to the hinge joint 41,42
41, the distance between 42 shape that can change the quadrangle.And the distance between chord member 11,12 is as the another of the quadrangle
One diagonal line, length can also change with the change of distance between hinge joint 41,42.
As shown in fig. 7, adjusting method provided by the embodiment of the present invention applies the behaviour of active force to the cross-articulation point
Work includes: the cross-articulation point connected in the adjacent intersection web member group by the first telescoping mechanism, and described in control
The telescopic direction and stretching speed of first telescoping mechanism, to adjust the distance between two described chord members.Further, described
One telescoping mechanism can be a kind of oil cylinder, by independent oil sources and switch control, to control the telescoping mechanism for greater flexibility, or
It is connected with the oil system for the engineering mechanism for installing the truss arm, with simplified control oil circuit.
As shown in Figure 5, Figure 6, adjusting method provided by the embodiment of the present invention applies active force to the cross-articulation point
Operation include: the cross-articulation point connected by the first lifting rope in the adjacent intersection web member group, and by described
First lifting rope lifting single fan structure, to adjust the distance between two described chord members.When lifting single fan structure, control
The length of first lifting rope is made, is adjusted using suspension centre as the first lifting rope itself size angle formed on vertex, to change
Become the speed that distance is expanded or shunk between two chord members.
When being lifted by the first lifting rope to cross-articulation point 20,30, cross-articulation point 20,30 be will receive along described
The pulling force in one lifting rope direction, gravity of the component of the pulling force vertical direction to balance single fan structure 1, and horizontal direction
Then to make the quadrangle being made of the web member 21,22,31,32, deformation occurs for component.Therefore, for single fan structure 1
Deformation process for, the component of first lifting rope in the horizontal direction will determine between described two chord members 11,12 that distance becomes
The speed of change, the component of the horizontal direction with using suspension centre as the first lifting rope described in vertex itself be formed by angle beta increase and
Increase, reduces with the reduction of angle beta.And since in hoisting process, first lifting rope is tensioned always, therefore by subtracting
The length of few lifting rope will be such that angle beta increases, and then accelerate the widened speed of distance between described two chord members 11,12, and phase
Instead, the length for increasing the lifting rope will be such that the widened speed of distance between described two chord members 11,12 slows down.In Engineering operation
In the process, technical staff can flexibly choose the length of first lifting rope according to operating provision, make to the deformable truss
The deformation process control of arm more meets operation and requires.
As shown in Figure 8, Figure 9, adjusting method provided by the embodiment of the present invention is by driving the hinge joint to adjust two
The operation of the distance between the chord member includes: the active force for applying opposite direction or opposite direction to the hinge joint, with control
The distance between two described chord members of system are expanded or shunk.
Further, adjusting method provided by the embodiment of the present invention applies the operation packet of active force to the hinge joint
It includes: being located at the hinge joint of two chord members by the connection of the second lifting rope, and institute is lifted by second lifting rope
Single fan structure is stated, to adjust the distance between two described chord members.Drawing is provided since lifting rope is only the hinge joint 41,42
Power, therefore connecting the hinge joint 41,42 by the second lifting rope can only be such that the distance between described two chord members 11,12 shorten.
When lifting single fan structure, the length of second lifting rope is controlled, adjusts described the using suspension centre as vertex
Two lifting ropes itself size angle formed, to change the speed that distance is expanded or shunk between two chord members.With it is described
Corresponding to the adjusting of the first lifting rope, the length for increasing second lifting rope will make distance between described two chord members 11,12 contract
Small speed slows down, and the length for reducing second lifting rope will then accelerate Distance Shortened between described two chord members 11,12
Speed.
As shown in Figure 10~14, adjusting method provided by the embodiment of the present invention is by driving the sliding point to adjust two
The operation of the distance between the chord member includes: to apply active force to the sliding point, so that the sliding point is along the chord member
Sliding is expanded or shunk with controlling the distance between two described chord members.Since the sliding point is configured as along described two
The length direction of a chord member 11,12 slides, therefore can directly adjust the sliding point by the device of linear motion,
Further, sliding point described in adjusting method provided by the embodiment of the present invention further includes pulley structure, to institute
Stating sliding point to apply the operation of active force includes: to connect the sliding point on one of one end of traction rope and described chord member,
And make pulley mechanism on the sliding point on another chord member of the traction rope pile warp, pass through the drawing traction rope
The other end, so that the sliding point is slided to the direction close to or far from the hinge joint, to adjust between two chord members
Distance.It can change the sliding point along the string by the direction of sliding point top sheave mechanism described in control traction rope pile warp
The direction that bar 11,12 slides.Specifically, since traction rope is to the direction of the pulley mechanism active force, with the traction rope
Angular bisector angle formed is conllinear at pulley mechanism described in pile warp, therefore selects pulley mechanism described in the traction rope pile warp
Overhanging direction will determine that the pulley mechanism will drive the sliding point to slide to which direction afterwards, and then control described two
The direction that distance changes between chord member 11,12.
As shown in Figure 10, Figure 11, adjusting method provided by the embodiment of the present invention makes sliding described in the traction rope pile warp
The operation of pulley mechanism on point include: make to connect on first another chord member of traction rope pile warp with first traction rope described in
Pulley mechanism on the ipsilateral sliding point of sliding point.To the first string after the first traction rope pile warp sliding point 24 in Figure 10
The left side of bar 11 is drawn, and will generate the tractive force far from the hinge joint 41 to the sliding point 24, and then make described two strings
Distance reduces between bar 11,12；To the right side of first chord member 11 after the sliding point 24 as described in the second traction rope pile warp in 11
It draws, the tractive force close to the hinge joint 41 will be generated to the sliding point, and then make between described two chord members 11,12
Distance increases.
In order to change the direction of draw of traction rope, adjusting method provided by the embodiment of the present invention single fan structure it
Between be connected to each other by bracket, the bracket is distributed in the both ends of two chord members on single fan structure, on the bracket
Further include fixed pulley assembly, while making the pulley mechanism on sliding point described in the traction rope pile warp, also makes the traction
It is ipsilateral or not relative to the hinge joint to be located at the sliding point that connect with first traction rope on rope another chord member of pile warp
Ipsilateral fixed pulley assembly.On the one hand the fixed pulley assembly can use the rope end of front aperture connection traction rope, on the other hand
The quantity of the flexible in size adjustment idler wheel of the external force according to needed for adjustment process, adjusts the multiplying power of traction rope.
The present invention also provides a kind of regulating devices of deformable truss arm, are configured with as described in any of the above-described
Adjusting method adjust the distance between described chord member.
Any technical solution disclosed in aforementioned present invention unless otherwise stated, if it discloses numberical range,
Disclosed numberical range is preferred numberical range, and any it should be appreciated by those skilled in the art preferred numberical ranges
The only obvious or representative numerical value of technical effect in many enforceable numerical value.It, can not since numerical value is more
Exhaustion, so the present invention just discloses technical solution of the component values to illustrate the present invention, also, the above-mentioned numerical value enumerated is not
The limitation to the invention protection scope should be constituted.
If the words such as " first ", " second " are used herein come if limiting components, those skilled in the art are answered
This knows: the use of " first ", " second " is intended merely to facilitate in description and is distinguished components as not having Stated otherwise
Outside, above-mentioned word has no special meaning.
Meanwhile if aforementioned present invention discloses or relates to the components or structural member of connection fastened to each other, except another
There is statement outer, is fixedly connected it is to be understood that connection (such as using bolt or screw connection) can be removedly fixed, it can also be with
Understand are as follows: non-removable to be fixedly connected with (such as riveting, welding), certainly, connection fastened to each other or integral structure
(such as manufacturing using casting technique is integrally formed) is replaced (obviously can not be using except integrally formed technique).
In addition, for indicating the art of positional relationship or shape applied in any technical solution disclosed in aforementioned present invention
Its meaning includes approximate with its, similar or close state or shape to language unless otherwise stated.Either component provided by the invention
Either being assembled by multiple individual component parts, or the separate part that integrally formed technique manufactures.
In the description of the present invention if used term " center ", " longitudinal direction ", " transverse direction ", "front", "rear", " left side ",
" right side ", "vertical", "horizontal", "top", "bottom", "inner", "outside" etc., then the orientation or positional relationship of above-mentioned term instruction is base
In orientation or positional relationship shown in the drawings, it is merely for convenience of description of the present invention and simplification of the description, rather than indication or suggestion
Signified equipment, mechanism, component or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot
It is interpreted as limiting the scope of the invention.
Finally it should be noted that: the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, it should be understood by those ordinary skilled in the art that: still
It can modify to a specific embodiment of the invention or some technical features can be equivalently replaced；Without departing from this hair
The spirit of bright technical solution should all cover within the scope of the technical scheme claimed by the invention.
Claims (16)
1. a kind of adjusting method of deformable truss arm, which is characterized in that the truss arm includes symmetrically arranged two single fans
Structure (1,2), the list fan structure (1) includes two chord members (11,12), and connects the two of two chord members (11,12)
A intersection web member group (2,3) arranged side by side, each intersection web member group (2,3) respectively include two settings intersected with each other and cut with scissors
Be connected to cross-articulation point (20,30) web member (21,22,31,32), the web member (21,31,22,32) one end pass through it is hinged
Point (41,42) is hinged to the chord member (11,12), the web member (21,31,22,32) the other end be non-articulated end, pass through cunning
Dynamic point (23,33,24,34) be slidably attached to the chord member (12,11), the adjusting method includes: by described in driving
Chord member (11,12), cross-articulation point (20,30), the hinge joint (41,42) and/or the sliding point (23,24,33,
34), to adjust the distance between two described chord members (11,12).
2. adjusting method according to claim 1, which is characterized in that by driving the chord member (11,12) to adjust two
The operation of the distance between the chord member (11,12) includes: to apply one of described chord member (11,12) towards or away from another institute
The active force of chord member (12,11) is stated, is expanded or shunk with controlling the distance between two described chord members (11,12).
3. adjusting method according to claim 2, which is characterized in that apply active force to one of described chord member (11,12)
Operation include: single fan structure to be placed in load plane, and lift to the chord member (11,12) so that two strings
Bar (11,12) has the difference in height of vertical direction.
4. adjusting method according to claim 3, which is characterized in that when being lifted to the chord member (11,12), by hanging
Fill and a lifting force straight up applied to the chord member (11,12) of top, and by control the lifting force with it is described
The relative size relationship of single fan structure (1) gravity, to adjust the distance between two described chord members (11,12).
5. adjusting method according to claim 1, which is characterized in that by driving the cross-articulation point (20,30) to adjust
The operation of the distance between two chord members (11,12) of section includes: to apply opposite direction to the cross-articulation point (20,30)
Or the active force of opposite direction, it is expanded or shunk with controlling the distance between two described chord members (11,12).
6. adjusting method according to claim 5, which is characterized in that act on cross-articulation point (the 20,30) application
The operation of power includes: the cross-articulation point connected in the adjacent intersection web member group (2,3) by the first telescoping mechanism
(20,30), and the telescopic direction and stretching speed of first telescoping mechanism are controlled, to adjust two chord members (11,12)
The distance between.
7. adjusting method according to claim 5, which is characterized in that act on cross-articulation point (the 20,30) application
The operation of power includes: the cross-articulation point connected in the adjacent intersection web member group (2,3) by the first lifting rope (51)
(20,30), and single fan structure (1) is lifted by first lifting rope (51), with adjust two chord members (11,12) it
Between distance.
8. adjusting method according to claim 7, which is characterized in that when lifting single fan structure (1), described in control
The length of first lifting rope (51), adjust using suspension centre as itself size angle formed of the first lifting rope (51) on vertex, with
Change the speed that distance is expanded or shunk between two chord members (11,12).
9. adjusting method according to claim 1, which is characterized in that by driving the hinge joint (41,42) to adjust two
The operation of the distance between a chord member (11,12) includes: to apply opposite direction or phase negative side to the hinge joint (41,42)
To active force, expanded or shunk with controlling the distance between two described chord members (11,12).
10. adjusting method according to claim 9, which is characterized in that apply active force to the hinge joint (41,42)
Operation includes: the hinge joint (41,42) that two chord members (11,12) are located at by the second lifting rope (52) connection,
And single fan structure (1) is lifted by second lifting rope (52), with adjust between two chord members (11,12) away from
From.
11. adjusting method according to claim 10, which is characterized in that when lifting single fan structure (1), control institute
The length of the second lifting rope (52) is stated, is adjusted using suspension centre as itself size angle formed of the second lifting rope (52) on vertex,
To change the speed that distance is expanded or shunk between two chord members (11,12).
12. adjusting method according to claim 1, which is characterized in that by driving the sliding point (23,33,24,34)
The operation for adjusting the distance between two described chord members (11,12) includes: to act on the sliding point (23,33,24,34) application
Power, so that the sliding point (23,33,24,34) is slided along the chord member (11,12), to control two chord members (11,12)
The distance between expand or shrink.
13. adjusting method according to claim 12, which is characterized in that the sliding point (23,33,24,34) further includes
Pulley structure, the operation that the sliding point (23,33,24,34) are applied with active force includes: by one end of traction rope and the string
The sliding point (23,33,24,34) connection on one of bar (11,12), and make another chord member of the traction rope pile warp
The pulley mechanism on the sliding point (23,33,24,34) on (11,12), by pulling the other end of the traction rope, with
Make the sliding point (23,33,24,34) to the direction sliding close to or far from the hinge joint (41,42), to adjust two institutes
State the distance between chord member (11,12).
14. adjusting method according to claim 13, which is characterized in that make sliding point described in the traction rope pile warp (23,
33,24,34) on the operation of pulley mechanism include: to make on another chord member of the first traction rope (81) pile warp (11,12) with described
Cunning on the ipsilateral sliding point (23,33,24,34) of the sliding point (23,33,24,34) of one traction rope (81) connection
Take turns mechanism.
15. adjusting method according to claim 13, which is characterized in that pass through bracket between the list fan structure (1,2)
(9) it is connected to each other, the bracket (9) is distributed in the both ends of described single fan structure (1) upper two described chord members (11,12), described
Further include fixed pulley assembly (91,92,93,94) on bracket (9), make sliding point described in the traction rope pile warp (23,33,24,
34) while pulley mechanism on, also make on another chord member of traction rope pile warp (11,12) relative to the hinge joint (41,
42) it is located at the ipsilateral or not ipsilateral fixed pulley of the sliding point (23,33,24,34) connecting with first traction rope (81)
Component (91,92,93,94).
16. a kind of regulating device of deformable truss arm, is configured with such as the described in any item adjustings of claim 1-15
Method adjusts the distance between described chord member (11,12).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811359831.2A CN109264595B (en) | 2018-11-15 | 2018-11-15 | Adjusting method and adjusting device for deformable truss arm |
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| CN201811359831.2A CN109264595B (en) | 2018-11-15 | 2018-11-15 | Adjusting method and adjusting device for deformable truss arm |
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| CN109826357A (en) * | 2019-02-25 | 2019-05-31 | 济源职业技术学院 | A kind of assembled architecture truss structure |
| CN110027993A (en) * | 2019-04-28 | 2019-07-19 | 徐工集团工程机械股份有限公司建设机械分公司 | Truss arm and crane |
| CN110407115A (en) * | 2019-09-03 | 2019-11-05 | 徐工集团工程机械股份有限公司建设机械分公司 | A kind of slide assemblies, truss arm and the crane of foldable truss arm |
| CN111943039A (en) * | 2020-08-07 | 2020-11-17 | 山东齐利得重工集团有限公司 | Crane beam for crane |
| CN113530262A (en) * | 2021-08-25 | 2021-10-22 | 宁玉欣 | Traction device for mounting circular steel tube truss hollow rod piece and using method |
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| Publication number | Publication date |
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| CN109264595B (en) | 2020-04-07 |
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