CN105858505B - Combine arm support and hoisting machinery - Google Patents
Combine arm support and hoisting machinery Download PDFInfo
- Publication number
- CN105858505B CN105858505B CN201610487715.3A CN201610487715A CN105858505B CN 105858505 B CN105858505 B CN 105858505B CN 201610487715 A CN201610487715 A CN 201610487715A CN 105858505 B CN105858505 B CN 105858505B
- Authority
- CN
- China
- Prior art keywords
- arm support
- end portion
- axial end
- attachment structure
- chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Jib Cranes (AREA)
Abstract
The present invention relates to hoisting machinery technical field, more particularly to a kind of combination arm support and hoisting machinery.The combination arm support of the present invention, it includes the first arm support, second arm support and arm support connecting structure, wherein, first attachment structure of arm support connecting structure is connected with the first axial end portion of the first arm support, second attachment structure of arm support connecting structure is connected with the second axial end portion of the second arm support, and the separation structure being connected between the first attachment structure and the second attachment structure of arm support connecting structure is contacted respectively with the end face of the first axial end portion and the end face of the second axial end portion, axial load so suffered by arm support can be undertaken by the contact surface of the first main chord and the second main chord and separation structure, namely the load suffered by arm support is no longer all undertaken by bearing pin, therefore, the present invention can improve the stress of combination arm support, and it is more beneficial for combining the transmission of arm support axial force.
Description
Technical field
The present invention relates to hoisting machinery technical field, more particularly to a kind of combination arm support and hoisting machinery.
Background technology
With the fast development of international energy and chemical engineering construction field, modularization, maximization and integration in engineering
Lifting requirements are improved constantly, and lifting capacity and hoisting moment to hoisting machinery propose higher requirement.Boom system is by multiple
Arm support assembles to be formed, and as the main bearing member of crane gear, the characteristic such as structure type, the bearing capacity of boom system itself is straight
Connect the performance and lifting performance of influence complete machine.
Fig. 1 a and Fig. 1 b show the combining structure of two arm supports in the prior art.From Fig. 1 a and Fig. 1 b, prior art
In, boom system includes the first arm support 1 ' and the second arm support 2 ', and the end of main chord 11 ' of the first arm support 1 ' is provided with joint 3 ', the
The end of the main chord 11 ' of two arm supports 2 ' is also correspondingly provided with joint 3 ', and two joints 3 ' and is equipped with pin-and-hole, so by two
Joint 3 ' docks and bearing pin 4 ' is passed through into the pin-and-hole on two joints 3 ', you can realize between the first arm support 1 ' and the second arm support 2 '
Connection.As shown in Figure 1 b, joint 3 ' is welded on main chord 11 ', and joint 3 ' passes through big with main chord 11 ' in A ' regions
The welding wire of amount high intensity is fixedly connected.
This existing boom system, the problem of there are following several respects：
(1) load (mainly pulling force and pressure) suffered by arm support, is only undertaken, the requirement to bearing pin 4 ' by bearing pin 4 '
It is higher, cause the stress of boom system poor；
(2) joint 3 ' is welded on main chord 11 ', and because postwelding has a certain degree of deformation, after the completion of welding also
Need to carry out Shape correction, processing cost is higher, and labor intensity is larger；Moreover, requiring higher to the weldquality in A ' regions, easily
The potential safety hazard caused by weld seam reason；
(3) existing joint 3 ' forged or cast must form the mould, it is necessary to special, and processing and manufacturing cost is higher,
And this heavier-weight of joint 3 ', influence boom system overall performance.
The content of the invention
A technical problem to be solved by this invention is：Existing boom system, institute is loaded all to be undertaken by bearing pin,
Stress is poor.
In order to solve the above-mentioned technical problem, first aspect present invention provides a kind of combination arm support.The combination arm support includes
First arm support and the second arm support, the first arm support include the first main chord with the first axial end portion, and the second arm support includes having
Second main chord of the second axial end portion, moreover, the combination arm support also includes being connected to the first axial end portion and the second axial end
Arm support connecting structure between portion, arm support connecting structure includes the first attachment structure, the second attachment structure and separation structure, its
In：First attachment structure is connected with the first axial end portion；Second attachment structure is connected with the second axial end portion；Separation structure is connected
Between the first attachment structure and the second attachment structure, and the first surface positioned at the first attachment structure side of separation structure with
The end contact of first axial end portion, the second surface and the second axial end portion positioned at the second attachment structure side of separation structure
End contact.
Alternatively, the first attachment structure is detachably connected with the first axial end portion；And/or, the second attachment structure and second
Axial end portion is detachably connected.
Alternatively, the first attachment structure is provided with the first pin-and-hole, the first axial end portion and is correspondingly provided with the second pin-and-hole, arm support
Attachment structure also includes the first bearing pin coordinated with the first pin-and-hole and the second pin-and-hole, and the first bearing pin is sold through the first pin-and-hole and second
Realize being detachably connected for the first attachment structure and the first axial end portion in hole；And/or, the second attachment structure is provided with the 3rd pin
The 4th pin-and-hole is correspondingly provided with hole, the second axial end portion, arm support connecting structure also includes coordinating with the 3rd pin-and-hole and the 4th pin-and-hole
The second bearing pin, the second bearing pin realizes the removable of the second attachment structure and the second axial end portion through the 3rd pin-and-hole and the 4th pin-and-hole
Unload connection.
Alternatively, the first axial end portion has the first cavity body structure, and the first attachment structure is inserted in the first cavity body structure；
And/or, the second axial end portion has the second cavity body structure, and the second attachment structure is inserted in the second cavity body structure.
Alternatively, be provided with the first dividing plate in the first cavity body structure, the first dividing plate along the first main chord it is axially arranged simultaneously
Separating the first cavity body structure makes have first chamber and second chamber in the first cavity body structure, and the first attachment structure is included to each other
Every the first plate and the second plate of setting, thickness of the interval more than or equal to the first dividing plate between the first plate and the second plate
Degree, the first plate and the second plate are inserted in first chamber and second chamber respectively；And/or, provided with the in the second cavity body structure
Two dividing plates, second partition makes to have in the second cavity body structure along the axially arranged of the second main chord and the second cavity body structure of separation
3rd chamber and the 4th chamber, the second attachment structure include the 3rd plate and the 4th plate being intervally installed, the 3rd plate
And the 4th thickness of the interval more than or equal to second partition between plate, the 3rd plate and the 4th plate insert the 3rd chamber respectively
In room and the 4th chamber.
Alternatively, combination arm support also includes first baffle, and first baffle is arranged at remote first table of the first cavity body structure
The one end in face；And/or, combination arm support also includes second baffle, and second baffle is arranged at remote second table of the second cavity body structure
The one end in face.
Alternatively, the first attachment structure has the first hollow chamber, the first hollow chamber and the appearance of the first axial end portion
Face coordinates, and the first attachment structure is sheathed on the outer surface of the first axial end portion；And/or, the second attachment structure has in second
Plenum chamber, the second hollow chamber and the outer surface of the second axial end portion coordinate, and the second attachment structure is sheathed on the second axial end portion
Outer surface on.
Alternatively, first surface is provided with the first groove, and the first axial end portion is stretched into the first groove and the first axial end
The end face in portion is in contact with the bottom wall of the first groove；And/or, second surface is provided with the second groove, and the second axial end portion is stretched into
Second groove is interior and the end face of the second axial end portion is in contact with the bottom wall of the second groove.
Alternatively, the side wall of the first groove also with the first axial ends contact；And/or, the side wall of the second groove is also with
Two axial end portions are contacted.
Second aspect of the present invention additionally provides a kind of hoisting machinery, and it includes the combination arm support of the present invention.
The combination arm support of the present invention, its first arm support and the second arm support are connected by arm support connecting structure, and the first arm support
The first main chord end face and the second arm support the second main chord end face respectively with the separation structure of arm support connecting structure
Both side surface is contacted, and axial load suffered by such arm support can pass through the first main chord and the second main chord and separation structure
Contact surface is undertaken, namely the load suffered by arm support is no longer all undertaken by bearing pin, and therefore, the present invention can improve combination
The stress of arm support, and it is more beneficial for combining the transmission of arm support axial force.
Be described in detail by the exemplary embodiment referring to the drawings to the present invention, further feature of the invention and
Its advantage will be made apparent from.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 a show the front view of two arm supports package assembly of the prior art.
Fig. 1 b show the top view of the combining structure of the joint and the first arm support in Fig. 1 a.
Fig. 2 a show the front view of the combination arm support of one embodiment of the invention.
Fig. 2 b show Fig. 2 a top view.
Fig. 2 c show Fig. 2 a partial enlarged view.
Fig. 3 a show the front view of the first arm support in Fig. 2 a.
Fig. 3 b show Fig. 3 a top view.
Fig. 4 a show the front view of the second arm support in Fig. 2 a.
Fig. 4 b show Fig. 4 a top view.
Fig. 5 a show the front view of the arm support connecting structure in Fig. 2 a.
Fig. 5 b show Fig. 5 a top view.
In figure：
1 ', first arm support；2 ', second arm support；3 ', joint；4 ', bearing pin；11 ', main chord；
1st, the first arm support；2nd, the second arm support；3rd, arm support connecting structure；
11st, the first main chord；111st, the first axial end portion；112nd, first baffle；114th, the first dividing plate；
21st, the second main chord；211st, the second axial end portion, 212, second baffle；214th, second partition；
31st, the first attachment structure；311st, the first plate；312nd, the second plate；
32nd, the second attachment structure；321st, the 3rd plate；322nd, the 4th plate；
33rd, separation structure；331st, first surface；332nd, second surface；
34th, the first bearing pin；
35th, the second bearing pin.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Below
Description only actually at least one exemplary embodiment is illustrative, is never used as to the present invention and its application or makes
Any limitation.Based on the embodiment in the present invention, those of ordinary skill in the art are in no development creative work premise
Lower obtained every other embodiment, belongs to the scope of protection of the invention.
It may be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable
In the case of, the technology, method and apparatus should be considered as authorizing a part for specification.
In the description of the invention, it is to be understood that limit parts using the word such as " first ", " second ", only
It is for only for ease of and corresponding parts is distinguished, such as without Stated otherwise, above-mentioned word does not have particular meaning, therefore not
It is understood that as limiting the scope of the invention.
For convenience, in the present invention, using the short transverse of arm support as above-below direction, with the width of arm support
Left and right directions is used as fore-and-aft direction, and using the length direction of arm support.
Fig. 2 a-5b show that one embodiment of the invention combines the structure of arm support.Reference picture 2a-5b, it is provided by the present invention
Arm support, including the first arm support 1 and the second arm support 2 are combined, wherein, the first arm support 1 includes first with the first axial end portion 111
Main chord 11, the second arm support 2 includes the second main chord 21 with the second axial end portion 211；And the combination arm support also includes connecting
The arm support connecting structure 3 between the first axial end portion 111 and the second axial end portion 211 is connected to, the arm support connecting structure 3 includes the
One attachment structure 31, the second attachment structure 32 and separation structure 33, wherein：First attachment structure 31 and the first axial end portion 111
Connection；Second attachment structure 32 is connected with the second axial end portion 211；Separation structure 33 is connected to the first attachment structure 31 and second
Between attachment structure 32, and the axial end of first surface 331 and first positioned at the side of the first attachment structure 31 of separation structure 33
The end contact in portion 111, the axial end portion of second surface 332 and second positioned at the side of the second attachment structure 32 of separation structure 33
211 end contact.
The combination arm support of the present invention, its arm support 2 of the first arm support 1 and second is connected by arm support connecting structure 3, and the first arm
Point of the end face of the end face of first main chord 11 of frame 1 and the second main chord 21 of the second arm support 2 respectively with arm support connecting structure 3
Contacted every the both side surface of structure 33, the axial load suffered by such arm support can be by the first main chord 11 and the second main chord 21
Undertaken with the contact surface of separation structure 33, namely the load suffered by arm support is no longer all undertaken by bearing pin, therefore, this hair
It is bright to improve the stress of combination arm support, and it is more beneficial for combining the transmission of arm support axial force.
In addition, in order to further solve the labor intensity of weld in the prior art caused by main chord it is big and
The problem of potential safety hazard is higher, in the present invention, the first attachment structure 31 can be detachably connected with the first axial end portion 111；
And/or, the second attachment structure 32 can be detachably connected with the second axial end portion 211.Based on this, arm support connecting structure 3 and
It is detachably connected between one arm support 1 and/or the second arm support 2, not only dismounts and more facilitate, and because arm support connecting structure 3 need not
It is welded on an arm support 1 and/or the second arm support 2, therefore welding and postwelding shaping operation can be saved, reduces labor intensity,
And avoid because of the potential safety hazard that weld seam reason is brought so that the process of manufacture of combination arm support is more prone to control.
The present invention is described further with reference to the embodiment shown in Fig. 2 a-5b.
As shown in Fig. 2 a-5b, in this embodiment, combination arm support includes the first arm support 1, the second arm support 2 and arm support connection
Structure 3, wherein, the first arm support 1 and the second arm support 2 are realized by arm support connecting structure 3 and connected.
As shown in Figure 3 a and Figure 3 b shows, in this embodiment, the first arm support 1 includes first with the first axial end portion 111
Main chord 11, the first arm support 1 is connected by the first axial end portion 111 of the first main chord 11 with arm support connecting structure 3.
From Fig. 3 b, in this embodiment, the first axial end portion 111 has the first cavity body structure, the first cavity body structure
The first dividing plate 114 is inside provided with, the first cavity body structure along the axially arranged of the first main chord 11 and is divided into by the first dividing plate 114
First chamber and second chamber.
First dividing plate 114 along the first main chord 111 it is axially arranged when, the plate face of the first dividing plate 114 can be horizontally disposed with,
First cavity body structure is also divided into the first chamber and second chamber being distributed up and down；Or, the plate face of the first dividing plate 114
It can be vertically arranged, namely as shown in Figure 3 b, the first chamber and second chamber of distribution before and after the first cavity body structure is divided into.
First cavity body structure is divided into first chamber and second chamber by the embodiment by the first dividing plate 114 of setting, is made
Obtaining arm support connecting structure 3 can be docked by inserting in first chamber and second chamber with the first axial end portion 111, so may be used
To realize that the first arm support 1 is more firmly connected with arm support connecting structure 3 based on relatively simple structure, axial force is also beneficial to
Transmission, contribute to improve combination arm support stress.But it is to be understood that, the chamber setting side in the first cavity body structure
Formula is not limited thereto, for example, the first dividing plate 114 can also be not provided with the first cavity body structure, namely the first cavity body structure can
Only to have a chamber, or, the first cavity body structure can also be separated into more chambers, as long as arm support connecting structure 3
It is inserted into the first cavity body structure.
As shown in figures 4 a and 4b, in this embodiment, the second arm support 2 includes second with the second axial end portion 211
Main chord 21, the second arm support 2 is connected by the second axial end portion 211 of the second main chord 21 with arm support connecting structure 3.
In this embodiment, the second axial end portion 211 uses the structure similar with the first axial end portion 111.Can by Fig. 4 b
Know, the second axial end portion 211 of the embodiment, which has, is provided with second partition 214 in the second cavity body structure, the second cavity body structure, the
Second cavity body structure along the axially arranged of the second main chord 21 and is divided into the 3rd chamber and the 4th chamber by two dividing plates 214.
Setting with the first dividing plate 114 similarly, second partition 214 along the first main chord 211 it is axially arranged when, second
The plate face of dividing plate 214 can be horizontally disposed with, and the second cavity body structure is also divided into the 3rd chamber and the 4th chamber being distributed up and down
Room；Or, the plate face of second partition 214 can also be vertically arranged, namely as shown in Figure 3 b, before the second cavity body structure is divided into
The 3rd chamber being distributed afterwards and the 4th chamber.
The embodiment is divided into the 3rd chamber and the 4th chamber by setting second partition 214 by the second cavity body structure, makes
Obtaining arm support connecting structure 3 can be docked by inserting in the 3rd chamber and the 4th chamber with the second axial end portion 211, so may be used
To realize that the second arm support 2 is more firmly connected with arm support connecting structure 3 based on relatively simple structure, axial force is also beneficial to
Transmission, contribute to improve combination arm support stress.But it should also be understood that the chamber in the second cavity body structure is set
The mode of putting is not limited thereto, for example, second partition 214 can also be not provided with the second cavity body structure, namely the second cavity knot
Structure only has a chamber, or, more chambers can also be separated into the second cavity body structure, as long as arm support connecting structure
3 are inserted into the second cavity body structure.
As shown in Fig. 2 b, Fig. 5 a and Fig. 5 b, in this embodiment, arm support connecting structure 3 is connected to the first axial end portion 111
And second between axial end portion 211, it includes the first attachment structure 31, the second attachment structure 32, separation structure 33, the first bearing pin
34 and second bearing pin 35.
Wherein, the first attachment structure 31 is connected with the first axial end portion 111, and is fixed by the first bearing pin 34.
From Fig. 5 b, the first attachment structure 31 of the embodiment includes the first plate 311 being intervally installed and the
Two plates 312, the first plate 311 and the second plate 312 respectively with the first chamber and second on the first axial end portion 111
Chamber coordinates, in the such insertion of first plate 311 first chamber and in the second plate 321 insertion second chamber, it is possible to achieve the
One attachment structure 31 is docked with the first axial end portion 111.And in order to ensure that the first plate 311 and the second plate 312 can divide
It is not smoothly inserted into first chamber and second chamber, being set between the first plate 311 and the second plate 312 is more than
Or equal to the thickness of the first dividing plate 114.
Understood with reference to Fig. 2 b and Fig. 5 b, in this embodiment, the first attachment structure 31 is provided with the first pin-and-hole, and first axially
The second pin-and-hole is correspondingly provided with end 111, the first bearing pin 34 and the first pin-and-hole and the second pin-and-hole coordinate, and such first bearing pin 34 is worn
Cross the first pin-and-hole and the second pin-and-hole can realize being detachably connected for the first attachment structure 31 and the first axial end portion 111.
Second attachment structure 32 is connected with the second axial end portion 211, and is fixed by the second bearing pin 35.In this embodiment,
Second attachment structure 31 uses the structure similar with the first attachment structure 31.
As shown in Figure 5 b, the second attachment structure 32 of the embodiment includes the 3rd plate 321 that is intervally installed and the
Four plates 322, the 3rd plate 321 and the 4th plate 322 respectively with the 3rd chamber and the 4th on the second axial end portion 211
Chamber coordinates, and such 3rd plate 321 is inserted in the 3rd chamber and the 4th plate 322 is inserted in the 4th chamber, it is possible to achieve the
Two attachment structures 32 are docked with the second axial end portion 211.And in order to ensure that the 3rd plate 321 and the 4th plate 322 can divide
It is not smoothly inserted into the 3rd chamber and the 4th chamber, the interval between the 3rd plate 321 and the 4th plate 322 is more than or equal to
The thickness of second partition 214.
Understood with reference to Fig. 2 b and Fig. 5 b, in this embodiment, the second attachment structure 32 is provided with the 3rd pin-and-hole, and second axially
The 4th pin-and-hole is correspondingly provided with end 211, the second bearing pin 35 and the 3rd pin-and-hole and the 4th pin-and-hole coordinate, and such second bearing pin 35 is worn
Cross the 3rd pin-and-hole and the 4th pin-and-hole can realize being detachably connected for the second attachment structure 32 and the second axial end portion 211.
Due in this embodiment, being detachably connected between the first main chord 11 and the first attachment structure 31, and the second master
It is detachably connected, therefore, the arm support 1 of arm support connecting structure 3 and first and the second arm support 2 between the attachment structure 32 of chord member 21 and second
Between without welding, can not only save corresponding welding operation and postwelding Shape correction, reduce labor intensity, can also keep away
Exempt from, because of the potential safety hazard that welding reason is brought, to improve the job security of combination arm support；And dismountable arm support connecting structure 3 is not
The weight of arm support itself can be increased, the lifting performance for influenceing to combine arm support because increasing arm support own wt can be avoided.
Separation structure 33 is connected between the first attachment structure 31 and the second attachment structure 32, and by with the first axial end
The end contact of the end face in portion 111 and the second axial end portion 211 shares axial force.
As shown in Fig. 2 c and Fig. 5 a, in this embodiment, separation structure 33 includes first surface 311 and second surface 322,
Wherein：First surface 311 is located at the side of the first attachment structure 31, the end contact with the first axial end portion 111；Second surface
322 are located at the side of the second attachment structure 32, the end contact with the second axial end portion 211.Based on this, the first arm support 1 and second
Be respectively formed contact area between arm support 2 and arm support connecting structure 3, thus when combine arm support by axial force when, wherein especially when
When being under pressure, axial force can by this at two contact area undertake so that load suffered by combination arm support no longer all by
First bearing pin 34 and the second bearing pin 35 undertake, and then can improve the stress of combination arm support, mitigate the first bearing pin 34 and the
The load of two bearing pins 35, reduces the requirement to the first bearing pin 34 and the second bearing pin 35；Also cause combination arm support moreover, so setting
Institute it is loaded can along this at two contact area be transferred directly on the first main chord 11 and the second main chord 21, therefore, this
It is more favorable to combine the transmission of arm support axial force.
In addition, such as Fig. 2 c and Fig. 5 a spacing for the ease of being carried out to the first axial end portion 111 and the second axial end portion 211
Shown, in this embodiment, first surface 331 is provided with the first groove, and the first axial end portion 111 is stretched into the first groove and the
The end face of one axial end portion 111 is in contact with the bottom wall of the first groove, and such first axial end portion 111 can extend into separation structure
Certain distance in 33, the first surface 331 of separation structure 33 not only can by the end contact with the first axial end portion 111 come
Realize the transmission of axial force, can also play a part of limiting the lateral displacement of the first axial end portion 111 so that the first arm support 1 with
Connection between arm support connecting structure 3 is more stable；Similarly, second surface 332 is provided with the second groove, the second axial end portion
211 stretch into the second groove and the end face of the second axial end portion 211 is in contact with the bottom wall of the second groove, such second axial end
Portion 211 can stretch into certain distance in separation structure 33, the second surface 332 of separation structure 33 not only can by with the second axle
The transmission of axial force is realized to the end contact of end 211, the limitation lateral displacement of the second axial end portion 211 can also be played
Effect so that the connection between the second arm support 2 and arm support connecting structure 3 is more stable.
And it is preferably spacing to the first axial end portion 111 and the second axial end portion 211 in order to realize, in this embodiment,
The side wall of first groove is also contacted with the first axial end portion 111, and the side wall of the second groove also also connects with the second axial end portion 211
Touch, so can more effectively limit the lateral displacement of the first axial end portion 111 and the second axial end portion 211, it is to avoid first axle
It is displaced sideways to the axial end portion 211 of end 111 and second, makes the first arm support 1 and the second arm support 2 and arm support connecting structure 3
Between connection more consolidate, with it is further improve combine arm support performance.
In addition, in this embodiment, as shown in Figure 3 a, first baffle is additionally provided with the first cavity body structure of the first arm support 1
112, the first baffle 112 is arranged at one end of the remote first surface 331 of the first cavity body structure；Similarly, as shown in fig. 4 a,
Second baffle 212 is additionally provided with second cavity body structure of the second arm support 2, the second baffle 212 is arranged at the second cavity body structure
One end away from second surface 332.By setting first baffle 112 so that the remote first surface 331 of the first cavity body structure
One end is closed, and is so more convenient for positioning the first attachment structure 31 in the assembling process of combination arm support, is made the first connection
The first pin-and-hole in structure 31 aligns with the second pin-and-hole on the first arm support 1, quickly realizes the first arm support 1 and arm support connecting structure
3 positioning docking；Moreover, the first baffle 112 closed to the first cavity body structure, is also allowed for load transmission to whole
On one main chord 11 so that the axial and circumferential of the first main chord 11 can share load.Similarly, by setting second gear
Plate 212 so that the closing of one end of the remote second surface 332 of the second cavity body structure, is so also more convenient in combination arm support
The second attachment structure 32 is positioned in assembling process, made on the 3rd pin-and-hole and the second arm support 2 in the second attachment structure 32
The 4th pin-and-hole alignment, quickly realize that the second arm support 2 is docked with the positioning of arm support connecting structure 3；Moreover, to the second cavity body structure
The second baffle 212 closed, is also allowed in load transmission to whole second main chord 21 so that the second main chord 21
Axial and circumferential can share load.Therefore, the embodiment sets first baffle 112 and second baffle 212 to help speed up
Efficiency of assembling, reduce labor intensity.
It can be seen that, the combination arm support of the embodiment, it changes connected mode between existing arm support, no longer using traditional welding
Realize the connection of two arm supports in the joint on arm support, but two are realized using independently of the arm support connecting structure 3 of arm support
The connection of individual arm support, can flexibly and easily meet the lifting demand of the different operating modes of hoisting machinery, and its benefit is as follows：
(1) separation structure 3 of arm support connecting structure 3 is contacted with the end face of the main chord of two arm supports, two contact zones
Domain can undertake the axial force suffered by combination arm support so that bearing pin does not stress, or only by less power, therefore, the embodiment can
To reduce the stress of bearing pin, improve the stress of combination arm support, and because axial force can directly be transmitted along contact area
To the main chord of arm support, therefore, the load transmission of advantageously combined arm support, the stressed effect for combining arm support is preferable；
(2) arm support connecting structure 3 is detachably connected with arm support so that without unnecessary welding on arm support main chord, can be subtracted
Light work intensity, reduces the potential safety hazard caused by welding；, can and arm support connecting structure 3 will not increase the weight of arm support itself
To avoid the lifting performance for influenceing to combine arm support because increasing arm support own wt；
(3) structure of arm support connecting structure 3 is relatively simple, can be machined without forging or casting, can avoid big
The making of special grinding apparatus is measured, processing technology is simple, and processing cost is relatively low.
In the embodiment shown in Fig. 2 a-5b, the first axial end portion 111 has the first cavity body structure, the first attachment structure
31 are docked by inserting in the first cavity body structure with the first axial end portion 111；And second axial end portion 211 have the second cavity
Structure, the second attachment structure 32 is docked by inserting in the second cavity body structure with the second axial end portion 211.But need what is illustrated
It is that in the present invention, the docking mode between the arm support 1 of arm support connecting structure 3 and first and the second arm support 2 is not limited thereto.
For example, as a kind of alternative of docking mode shown in Fig. 2 a-5b, the first attachment structure 31 could be arranged to have in first
Plenum chamber, the first hollow chamber and the outer surface of the first axial end portion 111 coordinate, and the first attachment structure 31 is sheathed on first axially
On the outer surface of end 111；And second attachment structure 32 be set to that there is the second hollow chamber, the second hollow chamber and the second axle
Coordinate to the outer surface of end 211, the second attachment structure 32 is sheathed on the outer surface of the second axial end portion 211, namely at this
In alternative, the first attachment structure 31 by be sheathed on the outer surface of the first axial end portion 111 and with 111 pairs of the first axial end portion
Connect, the second attachment structure 32 is docked by being sheathed on the outer surface of the second axial end portion 211 with the second axial end portion 211.This two
Docking mode is planted, is either achieved a butt joint by inserting, or is achieved a butt joint by being arranged, due to being required to set cavity
Structure, therefore, both docking modes can mitigate combination arm relative to the docking mode docked in the prior art by joint
The weight of frame, helps to improve the lifting performance of combination arm support.
In addition, in the embodiment shown in Fig. 2 a-5b, the first attachment structure 31 is with the second attachment structure 32 using similar
Structure, and correspondingly, the first axial end portion 111 uses similar structure with the second axial end portion 211, so that combination arm support
Overall structure it is relatively simple, it is easy to processing and assemble, but in fact, in the present invention, the first attachment structure 31 and second connects
Binding structure 32 can also use different structures, and correspondingly, the first axial end portion 111 and the second axial end portion 211 can also be adopted
With different structures, these are all within protection scope of the present invention.
The combination arm support of the present invention can apply to the hoisting machineries such as crane.Therefore, risen present invention also offers one kind
Hoisting machinery, it includes the combination arm support of the present invention.
The exemplary embodiment of the present invention is the foregoing is only, is not intended to limit the invention, all spirit in the present invention
Within principle, any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (10)
1. one kind combination arm support, including the first arm support (1) and the second arm support (2), first arm support (1) include having first axle
To first main chord (11) of end (111), second arm support (2) includes the second master with the second axial end portion (211)
Chord member (21), it is characterised in that the combination arm support also includes being connected to first axial end portion (111) and second axle
To the arm support connecting structure (3) between end (211), the arm support connecting structure (3) includes the first attachment structure (31), second
Attachment structure (32) and separation structure (33), wherein：First attachment structure (31) connects with first axial end portion (111)
Connect；Second attachment structure (32) is connected with second axial end portion (211)；The separation structure (33) is connected to described
Between first attachment structure (31) and second attachment structure (32), and the separation structure (33) be located at described first connect
The first surface (331) of binding structure (31) side and the end contact of first axial end portion (111), the separation structure
(33) second surface (332) positioned at the second attachment structure (32) side and the end of second axial end portion (211)
Face is contacted.
2. combination arm support according to claim 1, it is characterised in that first attachment structure (31) and the first axle
It is detachably connected to end (111)；And/or, second attachment structure (32) is detachable with second axial end portion (211)
Connection.
3. combination arm support according to claim 2, it is characterised in that first attachment structure (31) is provided with the first pin
It is correspondingly provided with the second pin-and-hole on hole, first axial end portion (111), the arm support connecting structure (3) also includes and described the
The first bearing pin (34) that one pin-and-hole and second pin-and-hole coordinate, first bearing pin (34) passes through first pin-and-hole and described
Second pin-and-hole realizes being detachably connected for first attachment structure (31) and the first axial end portion (111)；And/or, institute
The second attachment structure (32) is stated provided with the 3rd pin-and-hole, the 4th pin-and-hole is correspondingly provided with second axial end portion (211), it is described
Arm support connecting structure (3) also includes the second bearing pin (35) coordinated with the 3rd pin-and-hole and the 4th pin-and-hole, described second
Bearing pin (35) realizes second attachment structure (32) with described second axially through the 3rd pin-and-hole and the 4th pin-and-hole
End (211) are detachably connected.
4. combination arm support according to claim 3, it is characterised in that first axial end portion (111) has the first chamber
Body structure, first attachment structure (31) is inserted in first cavity body structure；And/or, second axial end portion (211)
With the second cavity body structure, second attachment structure (32) is inserted in second cavity body structure.
5. combination arm support according to claim 4, it is characterised in that the first dividing plate is provided with first cavity body structure
(114), first dividing plate (114) is along the axially arranged of first main chord (11) and separates first cavity body structure
Make that there is first chamber and second chamber in first cavity body structure, first attachment structure (31) includes being spaced setting
The first plate (311) and the second plate (312) put, between first plate (311) and second plate (312) between
Every the thickness more than or equal to first dividing plate (114), first plate (311) and second plate (312) are respectively
Insert in the first chamber and the second chamber；And/or, second partition (214), institute are provided with second cavity body structure
Second partition (214) is stated along the axially arranged of second main chord (21) and separates second cavity body structure and makes described
There is the 3rd chamber and the 4th chamber, second attachment structure (32) includes the 3rd be intervally installed in two cavity body structures
Plate (321) and the 4th plate (322), the interval between the 3rd plate (321) and the 4th plate (322) be more than or
Equal to the thickness of the second partition (214), the 3rd plate (321) and the 4th plate (322) are inserted described respectively
In 3rd chamber and the 4th chamber.
6. combination arm support according to claim 4, it is characterised in that the combination arm support also includes first baffle (112),
The first baffle (112) is arranged at one end of the remote first surface (331) of first cavity body structure；And/or, institute
Stating combination arm support also includes second baffle (212), and the second baffle (212) is arranged at the remote institute of second cavity body structure
State one end of second surface (332).
7. combination arm support according to claim 3, it is characterised in that first attachment structure (31) is hollow with first
Chamber, first hollow chamber and the outer surface of first axial end portion (111) coordinate, first attachment structure (31)
On the outer surface for being sheathed on first axial end portion (111)；And/or, second attachment structure (32) is hollow with second
Chamber, second hollow chamber and the outer surface of second axial end portion (211) coordinate, second attachment structure (32)
On the outer surface for being sheathed on second axial end portion (211).
8. according to any described combination arm supports of claim 1-7, it is characterised in that the first surface (331) is provided with the
One groove, first axial end portion (111) stretch into first groove and the end face of first axial end portion (111) with
The bottom wall of first groove is in contact；And/or, the second surface (332) is provided with the second groove, second axial end
Portion (211) stretch into second groove and the end face and second groove of second axial end portion (211) bottom wall phase
Contact.
9. combination arm support according to claim 8, it is characterised in that the side wall of first groove also with the first axle
Contacted to end (111)；And/or, the side wall of second groove is also contacted with second axial end portion (211).
10. a kind of hoisting machinery, it is characterised in that including the combination arm support as described in claim 1-9 is any.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610487715.3A CN105858505B (en) | 2016-06-28 | 2016-06-28 | Combine arm support and hoisting machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610487715.3A CN105858505B (en) | 2016-06-28 | 2016-06-28 | Combine arm support and hoisting machinery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105858505A CN105858505A (en) | 2016-08-17 |
| CN105858505B true CN105858505B (en) | 2017-10-24 |
Family
ID=56656412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610487715.3A Active CN105858505B (en) | 2016-06-28 | 2016-06-28 | Combine arm support and hoisting machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105858505B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107695550B (en) * | 2017-08-30 | 2019-12-06 | 武汉船用机械有限责任公司 | Processing method of truss type arm support |
| CN107792794A (en) * | 2017-11-01 | 2018-03-13 | 浙江省建设机械集团有限公司 | Novel crane boom lower chord connection structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201694762U (en) * | 2009-11-26 | 2011-01-05 | 自贡天成工程机械有限公司 | Modular connector of jib frame of tower crane |
| CN202369288U (en) * | 2011-12-12 | 2012-08-08 | 中联重科股份有限公司 | Truss arm butt-joint structure, truss arm with same and truss arm crane |
| CN105439010A (en) * | 2016-01-11 | 2016-03-30 | 徐工集团工程机械股份有限公司 | Composite connector and cantilever crane |
| CN205838401U (en) * | 2016-06-28 | 2016-12-28 | 徐工集团工程机械股份有限公司 | Combination jib and hoisting machinery |
-
2016
- 2016-06-28 CN CN201610487715.3A patent/CN105858505B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201694762U (en) * | 2009-11-26 | 2011-01-05 | 自贡天成工程机械有限公司 | Modular connector of jib frame of tower crane |
| CN202369288U (en) * | 2011-12-12 | 2012-08-08 | 中联重科股份有限公司 | Truss arm butt-joint structure, truss arm with same and truss arm crane |
| CN105439010A (en) * | 2016-01-11 | 2016-03-30 | 徐工集团工程机械股份有限公司 | Composite connector and cantilever crane |
| CN205838401U (en) * | 2016-06-28 | 2016-12-28 | 徐工集团工程机械股份有限公司 | Combination jib and hoisting machinery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105858505A (en) | 2016-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105858505B (en) | Combine arm support and hoisting machinery | |
| CN102083670A (en) | Railway coupler core structure for increased strength and fatigue life of resulting knuckle | |
| CN205838401U (en) | Combination jib and hoisting machinery | |
| CN201778347U (en) | Hydraulic crab bucket connector | |
| CN108035444A (en) | A kind of connection method of double steel plate shear wall and floor negative reinforcement | |
| CN208646580U (en) | Battery for electric automobile case | |
| CN103046650B (en) | Highly-thrust-resistant pin structure for connecting constructional steel column with constructional steel pipe truss | |
| CN102284574A (en) | Slug for causing car bumper with small bend radius to be arc | |
| CN206140034U (en) | Special frock of crawler crane main platform | |
| CN110159306A (en) | Secondary lining flexible joint device and construction method for Tunnel Passing active fault | |
| CN103492253A (en) | Railway car yoke | |
| US20180087235A1 (en) | Boom foot design | |
| WO2016072261A1 (en) | Arm for construction machine | |
| CN104533490B (en) | Stable type left-and-right type end socket support | |
| CN201579320U (en) | Compact-structure core for online arcing of automobile bumper | |
| CN205118128U (en) | Novel chain unit | |
| CN204398084U (en) | A kind of novel press | |
| CN202969595U (en) | Big anti-thrust pin shaft structure used for connecting construction steel column and steel tube truss | |
| CN204859946U (en) | Plough machine walking case a little | |
| CN208686720U (en) | The quick attachment base of engineering machinery | |
| CN201105946Y (en) | Main girder of single-beam crane | |
| CN207735545U (en) | It is a kind of can Quick pouring mobile traction pin forging stock part | |
| CN201857621U (en) | Movable arm of excavator | |
| CN207120867U (en) | A kind of aircraft punching Tenon encapsulating section bar keel frame | |
| CN201694762U (en) | Modular connector of jib frame of tower crane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |