CN103626049A - Lifting arm support of engineering machine and engineering machine - Google Patents
Lifting arm support of engineering machine and engineering machine Download PDFInfo
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- CN103626049A CN103626049A CN201310588887.6A CN201310588887A CN103626049A CN 103626049 A CN103626049 A CN 103626049A CN 201310588887 A CN201310588887 A CN 201310588887A CN 103626049 A CN103626049 A CN 103626049A
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- arm
- arm support
- lifting arm
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Abstract
The invention discloses a lifting arm support of an engineering machine. The lifting arm support is used for supporting the lifting arm of the engineering machine and comprises a support body and an auxiliary power cylinder, wherein the auxiliary power cylinder comprises a cylinder tube and a piston rod which is arranged in the cylinder tube and is capable of carrying out telescopic movement relative to the cylinder tube; the cylinder tube is arranged on the support body; the piston rod is towards the lifting arm; when the lift arm carries out luffing action and lifts from the lifting arm support, the piston rod stretches out and props against the lifting arm to assist the lifting arm to lift; when the lifting arm drops down on the lifting arm support, the piston rod which is at the state of stretching out is in contact with the dropping lifting arm and draws back under the pushing force of the lifting arm to buffer the impact caused by dropping down of the lifting arm. The lifting arm support disclosed by the invention is capable of assisting the luffing oil cylinder to perform auxiliary lifting for the lifting arm and also effectively buffering the impact when the lifting arm drops down. The invention further provides the engineering machine which comprises the lifting arm support.
Description
Technical field
The present invention relates to technical field of engineering machinery, particularly about a kind of construction machinery and equipment arm support and there is the construction machinery and equipment of this arm support.
Background technology
When construction machinery and equipment (such as aerial platform, hoisting crane etc.) need to carry out operation, need to carry out luffing action to arm.Engineer machinery change field or while being failure to actuate, need to be lowered into arm on arm support and be fixed up.
When arm is accepted when not operation of construction machinery and equipment, at arm, fall to the moment of arm support, because arm own wt is larger, live load is larger, arm support and vehicle frame are produced to very large impact, cause vehicle frame shake, simultaneously, amplitude oil cylinder has little time to finely tune, and amplitude oil cylinder is also produced to great impact.In the process of moving, because road bump is uneven, arm also has with road surface and changes and shake construction machinery and equipment, easily causes the shake of construction machinery and equipment simultaneously.
When construction machinery and equipment carries out operation, need to carry out luffing action to arm, arm is got up from arm support upper support.When arm just hoists, amplitude oil cylinder initial angle is less, adds the weight of upper boom portion own larger, and amplitude oil cylinder needs very large hoisting force, otherwise there will be luffing dynamics inadequate, the phenomenon that derricking speed is very slow.
Existing arm support, falls to moment of arm support at arm, cannot effectively to the whereabouts of arm, cushion, and arm still can produce larger impact to arm support and vehicle frame; In addition, at arm, carry out luffing action when arm support hoists, also just rely on separately the application force of amplitude oil cylinder, therefore there will be luffing dynamics inadequate, the phenomenon that derricking speed is very slow.
Summary of the invention
In view of this, embodiments of the invention provide a kind of construction machinery and equipment arm support, can when arm falls, to arm, effectively cushion, and also can when arm hoists, to amplitude oil cylinder, assist that arm is assisted to jacking.
Embodiments of the invention provide a kind of construction machinery and equipment arm support, arm for propping works machinery, described arm support comprises stake body and auxiliary power cylinder, described auxiliary power cylinder comprises cylinder barrel and is arranged in described cylinder barrel and piston rod that can be flexible with respect to described cylinder barrel, described cylinder barrel is arranged on described stake body, and described piston rod is towards described arm; At described arm, carry out luffing action when described arm support hoists, described piston rod stretches out and withstands on described arm so that described arm is assisted to jacking; When described arm falls on described arm support, in stretching out the described piston rod of state, enter and contact with the described arm falling, the impact when cushioning described arm and fall that bounces back under the suppressing action of described arm of described piston rod.
Further, the end of the piston rod of described auxiliary power cylinder forms bulb, and the position contacting with described piston rod on described arm is provided with spherical mount pad, and described bulb and described spherical mount pad match.
Further, described arm support also comprises cushion rubber, and described cushion rubber is arranged on described stake body and towards described arm setting, impact when described cushion rubber contacts further to cushion described arm and falls when described arm falls with described arm.
Further, described stake body comprises column and the stay bearing plate that is arranged on described column top, and described stay bearing plate is for supporting the described arm falling, and described cushion rubber is arranged on the end face of described stay bearing plate.
Further, described stake body also comprises base and transverse slat, and the cylinder barrel of described auxiliary power cylinder is arranged on described base and described transverse slat, and the bottom of wherein said cylinder barrel is positioned on described base, and the top of described cylinder barrel is positioned on described transverse slat.
Further, the bottom of described cylinder barrel is hingedly mounted on described base by bearing pin, and the top of described cylinder barrel, through being located at the perforation on described transverse slat, is provided with and can plays to described cylinder barrel a plurality of rubber pads of guiding cushioning effect around described cylinder barrel on described transverse slat.
Further, on described arm support, be also provided with device for detecting distance of travel, whether described device for detecting distance of travel has fallen on described arm support and for detection of described arm whether left described arm support for detection of described arm.
Further, described device for detecting distance of travel comprises the body of rod, spring, travel switch and Contact plate, the top of the described body of rod is formed with head, described spring housing be located on the described body of rod and be folded in described head and the end face of described stay bearing plate between, described Contact plate is fixed on the described body of rod; When described arm falls on described arm support, the described body of rod moves down and compresses described spring, and described Contact plate moves with respect to described travel switch along first direction, and described travel switch now feeds back described arm and dropped on the signal on described arm support; At described arm, carry out luffing action when described arm support hoists, described spring return function by described body of rod jack-up, described Contact plate moves with respect to described travel switch along second direction, and described travel switch now feeds back the signal that described arm has left described arm support; Wherein said first direction is contrary with described second direction.
Embodiments of the invention also provide a kind of construction machinery and equipment, comprise construction machinery and equipment arm support and arm, and described arm support is used for supporting described arm, and described arm support is above-mentioned arm support.
Further, described construction machinery and equipment also comprises control system, when described control system is carried out luffing in startup amplitude oil cylinder to described arm, synchronously the auxiliary power cylinder to described arm support sends control signal, controls described auxiliary power cylinder and stretches out piston rod to assist described amplitude oil cylinder to assist jacking to described arm.
The beneficial effect that the technical scheme that embodiments of the invention provide is brought is: the construction machinery and equipment arm support that above-described embodiment provides, and simple in structure, easy to process, road-holding property is strong; At arm, hoist stage amplitude oil cylinder initial angle hour, the weight of arm own is larger, amplitude oil cylinder needs very large hoisting force, by auxiliary power cylinder is auxiliary, arm is carried out to jacking, can play protection amplitude oil cylinder, alleviate the burden of amplitude oil cylinder, avoid occurring that luffing dynamics is inadequate, the phenomenon that derricking speed is very slow; When arm falls on arm support, the impact while falling by the auxiliary power cylinder buffering arm stretching out, arm support being produced, thus reduce or eliminate the impact to vehicle frame, protect arm and vehicle frame; Auxiliary power cylinder also can be alleviated construction machinery and equipment in the process of moving, and because road bump is uneven, arm changes the small shake occurring with road surface, thereby alleviates the shake of construction machinery and equipment, reduces the impact to amplitude oil cylinder, reduces leakage phenomenon and produces.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in embodiments of the invention, below the accompanying drawing of required use during embodiment is described is briefly described.
Fig. 1 is the front view of the construction machinery and equipment arm support of embodiment of the present invention proposition.
Fig. 2 is the left view of the construction machinery and equipment arm support of Fig. 1.
Fig. 3 is the back view of the construction machinery and equipment arm support of Fig. 1.
Fig. 4 is the birds-eye view of the construction machinery and equipment arm support of Fig. 1.
Fig. 5 is that the construction machinery and equipment arm support that proposes of the embodiment of the present invention is in the front view of mode of operation.
Fig. 6 is the left view of the construction machinery and equipment arm support of Fig. 5.
Fig. 7 is the back view of the construction machinery and equipment arm support of Fig. 5.
The specific embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiment of the present invention is further described.
Fig. 1 is the front view of the construction machinery and equipment arm support (hereinafter to be referred as " arm support ") of embodiment of the present invention proposition, Fig. 2 is the left view of the arm support of Fig. 1, Fig. 3 is the back view of the arm support of Fig. 1, Fig. 4 is the birds-eye view of the arm support of Fig. 1, please join Fig. 1 to Fig. 4 simultaneously, this arm stent applications is on construction machinery and equipment, arm for propping works machinery, when engineer machinery change field or while being failure to actuate, the arm 30 of this project machinery can be accepted and be lowered on this arm support and be fixed.Particularly, this project machinery can be aerial platform, hoisting crane etc., and the arm 30 of this project machinery is generally telescopic boom.
This arm support comprises stake body 11 and auxiliary power cylinder 12.Auxiliary power cylinder 12 comprises cylinder barrel 122 and is arranged in cylinder barrel 122 and piston rod 121 that can be flexible with respect to cylinder barrel 122, and cylinder barrel 122 is arranged on stake body 11, and piston rod 121 is towards arm 30.When arm 30 falls on arm support, in stretching out the piston rod 121 of state, enter and contact with the arm 30 falling, piston rod 121 impact while falling with buffering arm 30 that bounces back under the suppressing action of arm 30; At arm 30, carry out luffing action when arm support hoists, piston rod 121 stretches out and withstands on arm 30 so that arm 30 is assisted to jacking.
Further, auxiliary power cylinder 12 is oil cylinder or cylinder; Due to the hydraulic efficiency pressure system that is generally of using in construction machinery and equipment, preferably, auxiliary power cylinder 12 is oil cylinder.
Further, this arm support also comprises cushion rubber 13.Cushion rubber 13 is arranged on stake body 11 and towards arm 30 and arranges, and cushion rubber 13 contacts with arm 30 when arm 30 falls, the impact while falling on this arm support further to cushion arm 30; Preferably, the shape matching with the outside face of arm 30 is made on the surface that cushion rubber 13 contacts with arm 30, so that the impact to this arm support when absorbing better arm 30 and falling fixedly.
In the present embodiment, stake body 11 comprises column 111 and the stay bearing plate 112 that is arranged on column 111 tops, and column 111 is vertical setting, can be one or more.Stay bearing plate 112 is and is horizontally disposed with, for supporting the arm 30 falling.Cushion rubber 13 is arranged on the end face of stay bearing plate 112, so that arm 30 cushions support to arm 30 while falling on stay bearing plate 112.
In the present embodiment, what cushion rubber 13 adopted is nylon lining plate, and nylon lining plate also can have the elastomeric element replacement of buffering with other certainly, such as rubber pad, spring etc., as long as can meet the impact of alleviating 30 pairs of these arm supports of arm.
In the present embodiment, stake body 11 also comprises base 113 and transverse slat 114, base 113 and transverse slat 114 are arranged on a side of column 111, the cylinder barrel 122 of auxiliary power cylinder 12 is arranged on base 113 and transverse slat 114, wherein the bottom of cylinder barrel 122 is positioned on base 113, the top of cylinder barrel 122 is positioned on transverse slat 114, and the arm 30 when keeping auxiliary power cylinder 12 and falling is substantially vertical setting.As a kind of locate mode wherein, the bottom of the cylinder barrel 122 of auxiliary power cylinder 12 is hingedly mounted on base 113 by bearing pin 14, the top of the cylinder barrel 122 of auxiliary power cylinder 12 is through the perforation (figure is mark not) of being located on transverse slat 114, on transverse slat 114, around cylinder barrel 122, be provided with double-screw bolt 15, nut 16, fixed plate 17, and rubber pad 18, double-screw bolt 15 is radially arranged on cylinder barrel 122 along cylinder barrel 122, rubber pad 18 is set on double-screw bolt 15, one end of fixed plate 17 is fixed on transverse slat 114, the other end of fixed plate 17 is set on double-screw bolt 15, nut 16 is tightened in the free end of double-screw bolt 15 and is pressed on fixed plate 17, rubber pad 18 is folded between cylinder barrel 122 and fixed plate 17, by rubber pad 18 grades together to 122 of cylinder barrels guiding cushioning effects.In the present embodiment, on transverse slat 114, around cylinder barrel 122, be evenly provided with a plurality of for example four rubber pads 18.Be to be understood that ground, the version of stake body 11 is not limited to this, also can replace with other structures of carrying arm 30 with playing location auxiliary power cylinder 12.
Further, the end of the piston rod 121 of auxiliary power cylinder 12 forms bulb 123, the position contacting with the piston rod 121 of auxiliary power cylinder 12 on arm 30 is provided with spherical mount pad 31, the bulb 123 of auxiliary power cylinder 12 matches with the spherical mount pad 31 on arm 30, to adapt to the angle of arm 30 luffings.
Fig. 5 is that the arm support that proposes of the embodiment of the present invention is in the front view of mode of operation, Fig. 6 is the left view of the arm support of Fig. 5, Fig. 7 is the back view of the arm support of Fig. 5, please join Fig. 5 to Fig. 7 simultaneously, at engineer machinery change field or while being failure to actuate, arm 30 need be accepted and put down and be fixed on arm support, when arm 30 falls to while approaching this arm support, the entering and contact in stretching out by a small margin the piston rod 121 of state of arm 30 and auxiliary power cylinder 12, the spherical mount pad 31 of arm 30 is pressed on the bulb 123 of piston rod 121 ends, arm 30 presses down the piston rod 121 of auxiliary power cylinder 12, impel piston rod 121 retractions of auxiliary power cylinder 12, impact while falling by auxiliary power cylinder 12 snubber arms 30, arm 30, when falling, also can touch cushion rubber 13, further absorbs arm 30 fall the impact to arm support by cushion rubber 13.Because arm 30 own wts are large, inertia while falling is also large, impact to arm support when the embodiment of the present invention can be reduced or be eliminated arm 30 and fall by auxiliary power cylinder 12 and cushion rubber 13, alleviate or elimination live load, thereby reduce or eliminate the impact to vehicle frame, protection arm 30 and vehicle frame, alleviate construction machinery and equipment shake; In addition, auxiliary power cylinder 12 and cushion rubber 13 also can be alleviated construction machinery and equipment in the process of moving, and because road bump is uneven, arm 30 changes the small shake occurring with road surface, thereby alleviate the shake of construction machinery and equipment.That is to say, the arm support of the embodiment of the present invention can reduce the impact to amplitude oil cylinder when arm 30 falls or shakes because road bump is uneven, reduces leakage phenomenon and produces.
Further, in order to promote the buffering effect of auxiliary power cylinder 12, can in the rodless cavity of auxiliary power cylinder 12, add spring, buffering dynamics when raising piston rod 121 presses down; Or, can in the loop of rodless cavity, dash pot valve be set, to reduce retraction speed and the Promoting Layered Buffer effect of piston rod 121.
When construction machinery and equipment carries out operation, need to carry out luffing action to arm 30, arm 30 is got up from arm support upper support, at arm 30 when arm support hoists, the initial angle of amplitude oil cylinder is less, add the weight of upper boom portion 30 own larger, amplitude oil cylinder needs very large hoisting force, now can send signal by the control system of this project machinery, the piston rod 121 of controlling auxiliary power cylinder 12 stretches out, the bulb 123 of piston rod 121 ends withstands on the spherical mount pad 31 of arm 30, auxiliary power cylinder 12 starts to assist amplitude oil cylinder to carry out luffing action to arm 30, now 12 pairs of arms 30 of auxiliary power cylinder play the effect of auxiliary jacking, by auxiliary power cylinder 12 and amplitude oil cylinder, with joint efforts arm 30 is carried out to lifting, thereby protection amplitude oil cylinder, alleviate the burden of amplitude oil cylinder, the luffing dynamics of avoiding using single amplitude oil cylinder to occur is inadequate, the phenomenon that derricking speed is very slow.That is to say, in the present invention, when the amplitude oil cylinder initial angle of arm 30 is less or luffing dynamics is inadequate, auxiliary power cylinder 12 can play auxiliary jacking effect.
Further, the present invention can be when control system starts amplitude oil cylinder arm 30 is carried out to luffing, synchronously to auxiliary power cylinder 12, send control signal, to control auxiliary power cylinder 12, stretch out piston rod 121 and assist amplitude oil cylinder to assist jacking to arm 30; Or, also can to the action of arm 30 or amplitude oil cylinder, detect by sensor (such as position transduser, travel switch etc.), when arm 30 being detected when carrying out luffing action, by sensor, send control signal, to control auxiliary power cylinder 12, stretch out piston rod 121 and assist amplitude oil cylinder to assist jacking to arm 30.
In the present embodiment, on this arm support, be also provided with device for detecting distance of travel, whether described device for detecting distance of travel has fallen on arm support and for detection of arm 30 whether left arm support for detection of arm 30.Particularly, the trip detecting device comprises the body of rod 19, spring 20, travel switch 21 and Contact plate 22, wherein the body of rod 19 is located on stay bearing plate 112 vertically, the top of the body of rod 19 is formed with head 191, spring 20 be set on the body of rod 19 and be folded in head 191 and the end face of stay bearing plate 112 between, the bottom of the body of rod 19 is passed down through the perforation (figure is mark not) of being located on stay bearing plate 112, and Contact plate 22 is fixed on the bottom of the body of rod 19.When arm 30 falls on this arm support, arm 30 is encountered the body of rod 19 and is pressed down after the body of rod 19, the body of rod 19 moves down and Compress Spring 20, Contact plate 22 is followed the body of rod 19 and is moved down, Contact plate 22 moves down with respect to travel switch 21 along first direction and away from travel switch 21, as shown in Figure 3, travel switch 21 now feeds back arm 30 and has dropped on signal on this arm support to the control system of construction machinery and equipment, and control system is cut off the luffing action of arm 30 subsequently, when arm 30 luffings are when this arm support rises, along with hoisting of arm 30, arm 30 is no longer pressed on the body of rod 19, spring 20 returns by the body of rod 19 jack-up, the body of rod 19 drives on Contact plate 22 and moves, Contact plate 22 moves up and proximity overtravel-limit switch 21 with respect to travel switch 21 along second direction, as shown in Figure 7, travel switch 21 now feeds back arm 30 and has left the signal of this arm support to the control system of construction machinery and equipment, control system is cut off the auxiliary jacking action of auxiliary power cylinder 12 subsequently, now the auxiliary top of auxiliary power cylinder 12 is promoted to business and is completed, follow-up the further upwards lifting that is completed alone arm 30 by amplitude oil cylinder is moved.Wherein, above-mentioned first direction is contrary with second direction.Understandably, between Contact plate 22 and travel switch 21 mutually near or away from time the signal that feeds back can exchange.
Comprehensively above-mentioned, the arm support tool that the embodiment of the present invention provides has the following advantages: this arm support simple in structure, easy to process, and road-holding property is strong; At arm 30, hoist stage amplitude oil cylinder initial angle hour, the weight of arm 30 own is larger, amplitude oil cylinder needs very large hoisting force, by auxiliary power cylinder 12 is auxiliary, arm 30 is carried out to jacking, can play protection amplitude oil cylinder, alleviate the burden of amplitude oil cylinder, avoid occurring that luffing dynamics is inadequate, the phenomenon that derricking speed is very slow; When arm 30 falls on arm support, the impact while falling by the auxiliary power cylinder 12 buffering arms 30 that stretch out, arm support being produced, thus reduce or eliminate the impact to vehicle frame, protect arm 30 and vehicle frame; Auxiliary power cylinder 12 and cushion rubber 13 also can be alleviated construction machinery and equipment in the process of moving, because road bump is uneven, arm 30 changes the small shake occurring with road surface, thereby alleviates the shake of construction machinery and equipment, the impact of minimizing to amplitude oil cylinder, reduces leakage phenomenon and produces.
In this article, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, except comprising those listed key elements, but also can comprise other key elements of clearly not listing.
In this article, the related noun of locality such as forward and backward, upper and lower is to be arranged in figure and parts position each other defines with parts in accompanying drawing, just clear and convenient for expression technology scheme.The use that should be appreciated that the described noun of locality should not limit the scope that the application asks for protection.
In the situation that not conflicting, the feature in above-described embodiment and embodiment can mutually combine herein.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a construction machinery and equipment arm support, arm (30) for propping works machinery, it is characterized in that: described arm support comprises stake body (11) and auxiliary power cylinder (12), described auxiliary power cylinder (12) comprises cylinder barrel (122) and is arranged in described cylinder barrel (122) and piston rod (121) that can be flexible with respect to described cylinder barrel (122), it is upper that described cylinder barrel (122) is arranged on described stake body (11), and described piston rod (121) is towards described arm (30); At described arm (30), carry out luffing action when described arm support hoists, described piston rod (121) stretches out and to withstand on described arm (30) upper so that described arm (30) is assisted to jacking; When described arm (30) falls on described arm support, in stretching out the described piston rod (121) of state, enter and contact with the described arm (30) falling, described piston rod (121) impact when cushioning described arm (30) and fall that bounces back under the suppressing action of described arm (30).
2. construction machinery and equipment arm support as claimed in claim 1, it is characterized in that: the end of the piston rod (121) of described auxiliary power cylinder (12) forms bulb (123), the upper position contacting with described piston rod (121) of described arm (30) is provided with spherical mount pad (31), and described bulb (123) matches with described spherical mount pad (31).
3. construction machinery and equipment arm support as claimed in claim 1, it is characterized in that: described arm support also comprises cushion rubber (13), it is upper and arrange towards described arm (30) that described cushion rubber (13) is arranged on described stake body (11), impact when described cushion rubber (13) contacts further to cushion described arm (30) and falls when described arm (30) falls with described arm (30).
4. construction machinery and equipment arm support as claimed in claim 3, it is characterized in that: described stake body (11) comprises column (111) and is arranged on the stay bearing plate (112) on described column (111) top, described stay bearing plate (112) is for supporting the described arm (30) falling, and described cushion rubber (13) is arranged on the end face of described stay bearing plate (112).
5. construction machinery and equipment arm support as claimed in claim 4, it is characterized in that: described stake body (11) also comprises base (113) and transverse slat (114), the cylinder barrel (122) of described auxiliary power cylinder (12) is arranged on described base (113) and described transverse slat (114), it is upper that the bottom of wherein said cylinder barrel (122) is positioned at described base (113), and the top of described cylinder barrel (122) is positioned on described transverse slat (114).
6. construction machinery and equipment arm support as claimed in claim 5, it is characterized in that: the bottom of described cylinder barrel (122) is hingedly mounted on described base (113) by bearing pin (14), the top of described cylinder barrel (122) is through being located at the perforation on described transverse slat (114), and described transverse slat (114) is upper to be provided with and can to play to described cylinder barrel (122) a plurality of rubber pads (18) of guiding cushioning effect around described cylinder barrel (122).
7. construction machinery and equipment arm support as claimed in claim 1, it is characterized in that: on described arm support, be also provided with device for detecting distance of travel, whether described device for detecting distance of travel has fallen on described arm support and for detection of described arm (30) whether left described arm support for detection of described arm (30).
8. construction machinery and equipment arm support as claimed in claim 7, it is characterized in that: described device for detecting distance of travel comprises the body of rod (19), spring (20), travel switch (21) and Contact plate (22), the top of the described body of rod (19) is formed with head (191), described spring (20) is set in the described body of rod (19) above and is folded between described head (191) and the end face of described stay bearing plate (112), and described Contact plate (22) is fixed on the described body of rod (19); When described arm (30) falls on described arm support, the described body of rod (19) moves down and compresses described spring (20), described Contact plate (22) is mobile with respect to described travel switch (21) along first direction, and described travel switch (21) now feeds back described arm (30) and dropped on the signal on described arm support; At described arm (30), carry out luffing action when described arm support hoists, described spring (20) return by the described body of rod (19) jack-up, described Contact plate (22) is mobile with respect to described travel switch (21) along second direction, and described travel switch (21) now feeds back the signal that described arm (30) has left described arm support; Wherein said first direction is contrary with described second direction.
9. a construction machinery and equipment, comprises construction machinery and equipment arm support and arm (30), and described arm support is used for supporting described arm (30), it is characterized in that: described arm support is the arm support described in claim 1 to 8 any one.
10. construction machinery and equipment as claimed in claim 9, it is characterized in that: described construction machinery and equipment also comprises control system, when described control system is carried out luffing in startup amplitude oil cylinder to described arm (30), synchronously the auxiliary power cylinder (12) to described arm support sends control signal, controls described auxiliary power cylinder (12) and stretches out piston rod (121) to assist described amplitude oil cylinder to assist jacking to described arm (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310588887.6A CN103626049B (en) | 2013-11-20 | 2013-11-20 | Construction machinery and equipment suspension arm support and construction machinery and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310588887.6A CN103626049B (en) | 2013-11-20 | 2013-11-20 | Construction machinery and equipment suspension arm support and construction machinery and equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103626049A true CN103626049A (en) | 2014-03-12 |
| CN103626049B CN103626049B (en) | 2015-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310588887.6A Active CN103626049B (en) | 2013-11-20 | 2013-11-20 | Construction machinery and equipment suspension arm support and construction machinery and equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106744376A (en) * | 2017-02-27 | 2017-05-31 | 北汽福田汽车股份有限公司 | Arm of derrick support and autocrane |
| CN109455648A (en) * | 2018-12-08 | 2019-03-12 | 安徽柳工起重机有限公司 | The suspension arm falling detection device of high-altitude operation vehicle |
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| JPH0912280A (en) * | 1995-04-28 | 1997-01-14 | I H I Amutetsuku:Kk | Crane |
| JP2011073816A (en) * | 2009-09-30 | 2011-04-14 | Tadano Ltd | Boom support structure in boom storage of boom type working vehicle |
| CN201882832U (en) * | 2010-11-17 | 2011-06-29 | 上海三一科技有限公司 | Rearward tilting prevention device for main arm of crane |
| CN202089711U (en) * | 2011-06-15 | 2011-12-28 | 长沙中联重工科技发展股份有限公司 | Back-inclination preventing buffer device for arm support |
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2013
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0912280A (en) * | 1995-04-28 | 1997-01-14 | I H I Amutetsuku:Kk | Crane |
| JP2011073816A (en) * | 2009-09-30 | 2011-04-14 | Tadano Ltd | Boom support structure in boom storage of boom type working vehicle |
| CN201882832U (en) * | 2010-11-17 | 2011-06-29 | 上海三一科技有限公司 | Rearward tilting prevention device for main arm of crane |
| CN202089711U (en) * | 2011-06-15 | 2011-12-28 | 长沙中联重工科技发展股份有限公司 | Back-inclination preventing buffer device for arm support |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106744376A (en) * | 2017-02-27 | 2017-05-31 | 北汽福田汽车股份有限公司 | Arm of derrick support and autocrane |
| CN109455648A (en) * | 2018-12-08 | 2019-03-12 | 安徽柳工起重机有限公司 | The suspension arm falling detection device of high-altitude operation vehicle |
| CN109455648B (en) * | 2018-12-08 | 2024-01-30 | 安徽柳工起重机有限公司 | Boom falling detection device of overhead working truck |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103626049B (en) | 2015-07-29 |
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