CN103342298A - Knuckle arm disassembling and assembling device for crane - Google Patents
Knuckle arm disassembling and assembling device for crane Download PDFInfo
- Publication number
- CN103342298A CN103342298A CN2013102843318A CN201310284331A CN103342298A CN 103342298 A CN103342298 A CN 103342298A CN 2013102843318 A CN2013102843318 A CN 2013102843318A CN 201310284331 A CN201310284331 A CN 201310284331A CN 103342298 A CN103342298 A CN 103342298A
- Authority
- CN
- China
- Prior art keywords
- arm
- bearing pin
- oil cylinder
- hoisting crane
- telescopic oil
- 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.)
- Granted
Links
Images
Landscapes
- Jib Cranes (AREA)
Abstract
The invention discloses a knuckle arm disassembling and assembling device for a crane. The knuckle arm disassembling and assembling device comprises a groove and a pin shaft, wherein the groove is arranged at the tail end of a movable arm to be disassembled and assembled; the pin shaft is clamped with or separated from the groove, arranged at the lateral wall of a telescopic cylinder of a fixed arm which is matched with the movable arm, and extends outside or retracts under the effect of a power source along the radial direction of the telescopic cylinder; and the pin shaft is clamped with the groove when being in an extended state, is relieved from clamping with the groove when being in a retracted state, and can be separated from the groove. Thus, the telescopic cylinder of the crane is utilized as a power element for disassembling and assembling the knuckle arm; and the telescopic pin shaft is arranged at the side of the telescopic cylinder, so that pinning and releasing of the movable arm to be assembled and the fixed arm are achieved; the structure is simple; an auxiliary device used in the processes of disassembling and assembling the knuckle arm is reduced; and meanwhile, the telescopic speed of the telescopic cylinder is intuitive and controllable. Thus, violent shaking of the telescopic arm in the disassembling and assembling processes is avoided; and the operating risk is also reduced.
Description
Technical field
The present invention relates to engineering machinery field, particularly a kind of joint arm attaching/detaching apparatus for hoisting crane.
Background technology
Along with the fast development of China's economic construction, market increases day by day for the demand of various construction machinery and equipments especially hoisting crane.Crane arm is the vitals of hoisting crane, and the carrying during lifting realizes by crane arm that all its quality can influence the in-use performance of hoisting crane to a great extent.
The less car hosit of tonnage generally uses oil cylinder rope row formula telescopic boom device, drives the synchronization telescope that respectively saves telescopic boom by two telescopic oil cylinders and pulley and rope row usually.Yet along with the progressively development that product maximizes, the bigger arm of oil cylinder rope row formula telescopic boom device weighs and less load-carrying capacity can't satisfy the needs in market.
Large tonnage hoisting crane generally adopts single cylinder bolt-type telescopic arm device.This kind device is driven by a telescopic oil cylinder, and the cylinder barrel of telescopic oil cylinder has cylinder pin and plug-in and pull-off device, selectively be connected by between cylinder pin and the arbitrary joint telescopic boom, and its cylinder bar end is fixed on the arm tail of basic arm.When each joint telescopic boom when stretching out with respect to basic arm, the cylinder pin at first with minor details arm locking, and the arm pin between minor details arm and the adjacent segments arm opens, other each arm pins all lock, cylinder barrel stretches out, and stretches out thereby drive minor details arm; After minor details arm reaches preposition, pin the arm pin between minor details arm and the adjacent segments arm again, the release of cylinder pin, cylinder barrel is regained.Repeat above process, can realize respectively saving stretching out successively of arm.
For large tonnage hoisting crane, its complete vehicle weight is bigger, and domestic communication laws and regulations requirement car load road weight can not transfinite, and therefore, needs some parts on the car are carried out dismounting during the crane mainframe transhipment.Crane arm occupies larger specific gravity in complete machine weight, generally can reach 20%～25%, and the part by weight of crane arm is higher in the hoister in large tonnage, and hoisting crane is removed crane arm with transhipment respectively when transition usually.
As depicted in figs. 1 and 2, the assembly and disassembly methods of traditional single cylinder bolt-type crane arm is to use two or two above whiplines, the two ends that two whiplines are sling joint arm 11 to be installed, with guarantee this joint joint arm 11 in disassembly process steadily, sling band dismounting joint arm 11 and should save arm 11 with fixed arm 12 installations or separate of crane; Need another auxiliary power simultaneously, for example plug in car or holder car etc. are finished the suit that respectively saves arm or are disassembled.
But traditional disassembly process needs more main equipment auxiliary, and telescopic boom suit process need staff range estimation aligns, and the crane arm of assembling belongs to relatively large equipment, size, weight are all bigger, and comparatively difficulty is adjusted in staff's range estimation repeatedly, is difficult for aligning; Disassembly process needs multiple devices and more personnel to coordinate jointly just can finish, and is consuming time longer, has relatively high expectations for personnel's operant level and cooperate degree; Simultaneously, tear open in the arm process, because fixed arm is more and more tighter to the clamping stagnation of telescopic boom before being about to extract, adopt the whipline side direction tiltedly to draw the effect with tractive force F, the moment that the joint arm is extracted can produce bigger rocking, and has certain operational hazards.
Therefore, provide a kind of joint arm attaching/detaching apparatus for hoisting crane, reduce the accessory equipment of using in the joint arm disassembly process, avoid acutely rocking of telescopic boom in the disassembly process simultaneously, reduce operational risk, just become the problem that those skilled in the art need solution badly.
Summary of the invention
The purpose of this invention is to provide a kind of joint arm attaching/detaching apparatus for hoisting crane, it can reduce the accessory equipment of using in the joint arm disassembly process, avoids acutely rocking of telescopic boom in the disassembly process simultaneously, reduces operational risk.
For solving the problems of the technologies described above, the invention provides a kind of joint arm attaching/detaching apparatus for hoisting crane, comprise the groove of the movable arm end that is opened in described hoisting crane, with the bearing pin that clamps or separate with described groove; Described bearing pin is arranged at the telescopic oil cylinder sidewall of the fixed arm of described hoisting crane, and in the extending radially out or withdrawing of the described telescopic oil cylinder in the effect lower edge of propulsion source, described bearing pin is in when stretching out state and described groove clamps.
Preferably, be provided with reposition element between described bearing pin and the described telescopic oil cylinder, described reposition element drives described bearing pin withdrawal.
Preferably, described reposition element is the spring that is sheathed on described bearing pin, and the two ends of described spring are individually fixed in described bearing pin and described telescopic oil cylinder, and described bearing pin is in described spring elongation when stretching out state.
Preferably, described groove comprises accommodation section and clamp portion, and the described portion of clamping is arranged at the periphery of described accommodation section, and the described accommodation section holds described telescopic oil cylinder, and described bearing pin is installed in the described portion that clamps.
Preferably, described bearing pin has two, is arranged at the both sides of described telescopic oil cylinder respectively, and the described portion of clamping has two, is divided into the both sides of described accommodation section, and two described bearing pins are installed in the described portion that clamps with its homonymy respectively.
Preferably, be provided with between described fixed arm and the described movable arm along the director element of installation direction guiding.
Preferably, described director element is the guide plate that is installed in described fixed arm, and described guide plate is positioned at described fixed arm near an end of described movable arm.
Preferably, also comprise flat truck, described movable arm is supported in described flat truck.
Preferably, described flat truck is provided with bearing, and described movable arm is installed on described flat truck by described bearing.
Preferably, described movable arm is connected with described bearing hinge.
What joint arm attaching/detaching apparatus provided by the present invention was used for dismantling crane respectively saves telescopic boom, and this joint arm attaching/detaching apparatus comprises the groove that is opened in the movable arm end of being with dismounting, with the bearing pin that clamps or separate with this groove; Bearing pin is arranged at the telescopic oil cylinder sidewall of the fixed arm that cooperates with above-mentioned movable arm, and extending radially out or withdrawing at the effect lower edge of propulsion source telescopic oil cylinder, bearing pin is in when stretching out state and groove clamps, when bearing pin is in retracted mode and groove remove and to clamp, and can separate with groove.
In the telescopic boom installation process, during initial condition, bearing pin is in retracted mode, adjust the relative position of movable arm and fixed arm, the arm mouth of fixed arm and the end of movable arm are aligned, the telescopic oil cylinder in the fixed arm is slowly stretched out forward, when the groove location on the arrival of the bearing pin on the telescopic oil cylinder movable arm, stop, this moment is by hydraulic-driven, makes bearing pin along the extending radially out and be installed in the groove of telescopic oil cylinder, by bearing pin telescopic oil cylinder captiveed joint with movable arm; Then, the withdrawal telescopic oil cylinder enters fixed arm inside thereby drive movable arm with the retraction of telescopic oil cylinder; When the arm pin between fixed arm and the movable arm arrives the pin-and-hole of fixed arm, with fixed arm and movable arm locking, at this moment, make the withdraw inside of telescopic oil cylinder of bearing pin by the arm pin, afterwards telescopic boom can normally stretch, action such as luffing, finish the installation of telescopic boom.
In the telescopic boom unloading process, during initial condition, bearing pin still is in retracted mode, at first the arm pin between movable arm and the fixed arm is unlocked, by hydraulic-driven bearing pin is extend out to groove and clamp, thereby by bearing pin telescopic oil cylinder is captiveed joint with movable arm; Then extend telescopic oil cylinder, make telescopic oil cylinder drive movable arm extend out to movable arm with respect to fixed arm and break away from fixed arm fully, make the bearing pin withdrawal afterwards, telescopic oil cylinder is retracted in the fixed arm, finishes the fractionation of telescopic boom.
Like this, joint arm attaching/detaching apparatus provided by the present invention utilizes the own telescopic oil cylinder of hoisting crane as the dynamical element of dismounting joint arm, and by the side at telescopic oil cylinder telescopic bearing pin is set, realize the fixed and release of movable arm to be assembled and the pin between the fixed arm, structure is comparatively simple, and the weight-lifting equipment that need not optional equipment provides dismounting power, reduces the accessory equipment of using in the joint arm disassembly process; Simultaneously, the stretching speed of telescopic oil cylinder is intuitively controlled, thereby has avoided acutely rocking of telescopic boom in the disassembly process, reduces operational risk.
A kind of preferred embodiment in, can also be provided with reposition element between the bearing pin of joint arm attaching/detaching apparatus provided by the present invention and the telescopic oil cylinder, in order to drive the bearing pin withdrawal by this reposition element, thereby make when external force disappears, bearing pin is retracted to initial position automatically under the driving of reposition element, improve the alerting ability of device, reduced labour intensity.
In the another kind of specific embodiment, can also be provided with between the fixed arm of joint arm attaching/detaching apparatus provided by the present invention and the movable arm along the director element of installation direction guiding, in joint arm installation process, further adjust position between movable arm and the fixed arm by director element, align precision thereby improved, further simplify installation process.
Description of drawings
Fig. 1 is the structural representation of traditional joint arm confined state;
Fig. 2 disassembles the structural representation of state for traditional joint arm;
Fig. 3 is in the structural representation of telescopic boom state to be assembled for joint arm attaching/detaching apparatus provided by the present invention;
Fig. 4 is the partial schematic diagram of A1 direction movable arm shown in Figure 3;
Fig. 5 is the partial schematic diagram of A1 direction telescopic oil cylinder shown in Figure 3;
Fig. 6 is the enlarged view of A part among Fig. 5;
Fig. 7 is that joint arm attaching/detaching apparatus provided by the present invention is in the structural representation in the telescopic boom fitting process;
Fig. 8 is the partial schematic diagram of A2 direction movable arm and telescopic oil cylinder among Fig. 7;
Fig. 9 is the enlarged view of B part among Fig. 8;
Figure 10 is in the structural representation of assembling completion status for joint arm attaching/detaching apparatus provided by the present invention.
The specific embodiment
Core of the present invention provides a kind of joint arm attaching/detaching apparatus for hoisting crane, and it can reduce the accessory equipment of using in the joint arm disassembly process, avoids acutely rocking of telescopic boom in the disassembly process simultaneously, reduces operational risk.
In order to make those skilled in the art person understand technical scheme of the present invention better, the present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 3 to Figure 10, Fig. 3 is in the structural representation of telescopic boom state to be assembled for joint arm attaching/detaching apparatus provided by the present invention; Fig. 4 is the partial schematic diagram of A1 direction movable arm shown in Figure 3; Fig. 5 is the partial schematic diagram of A1 direction telescopic oil cylinder shown in Figure 3; Fig. 6 is the enlarged view of A part among Fig. 5; Fig. 7 is that joint arm attaching/detaching apparatus provided by the present invention is in the structural representation in the telescopic boom fitting process; Fig. 8 is the partial schematic diagram of A2 direction movable arm and telescopic oil cylinder among Fig. 7; Fig. 9 is the enlarged view of B part among Fig. 8; Figure 10 is in the structural representation of assembling completion status for joint arm attaching/detaching apparatus provided by the present invention.
In a kind of specific embodiment, what joint arm attaching/detaching apparatus provided by the present invention was used for dismantling crane respectively saves telescopic boom, and this joint arm attaching/detaching apparatus comprises the groove 21 that is opened in movable arm 2 ends of being with dismounting, with the bearing pin 3 that clamps or separate with this groove 21; Bearing pin 3 is arranged at telescopic oil cylinder 5 sidewalls of the fixed arm 4 that cooperates with above-mentioned movable arm 2, and extending radially out or withdrawing at the effect lower edge of propulsion source telescopic oil cylinder 5, bearing pin 3 is in when stretching out state and groove 21 clamps, when bearing pin 3 is in retracted mode and groove 21 remove and clamp, and can separate with groove 21.
It is pointed out that movable arm described in the literary composition 2 refers to joint arm to be removed or to be installed; Fixed arm 4 refers to be fixed on the joint arm on the hoisting crane, and fixed arm 4 can be a joint basic arm, also can be for the already installed joint arm of more piece, and same, movable arm 2 can be a joint, also can be the more piece joint arm of suit.
The end of above-mentioned movable arm 2 refers to that it is near an end of fixed arm 4.
In the above-mentioned specific embodiment, the hydraulic oil that the propulsion source of bearing pin 3 provides for telescopic oil cylinder 5 is arranged at the oil duct that the hydraulic oil in the telescopic oil cylinder 5 are communicated with in the bearing pin 3, and drives bearing pin 3 by hydraulic oil and stretch out with respect to telescopic oil cylinder 5 or withdraw.Apparently, propulsion source also can be to drive bearing pin 3 along the conventional dynamical elements that use such as oil cylinder of the radial expansion of telescopic oil cylinder 5.
In the telescopic boom installation process, during initial condition, bearing pin 3 is in retracted mode, adjust the relative position of movable arm 2 and fixed arm 4, the arm mouth of fixed arm 4 and the end of movable arm 2 are aligned, telescopic oil cylinder 5 in the fixed arm 4 is slowly stretched out forward, when groove 21 positions on the bearing pin 3 arrival movable arms 2 on the telescopic oil cylinder 5, stop, pass through hydraulic-driven this moment, make bearing pin 3 along the extending radially out and be installed in the groove 21 of telescopic oil cylinder 5, by bearing pin 3 telescopic oil cylinder 5 is captiveed joint with movable arm 2; Then, withdrawal telescopic oil cylinder 5 enters fixed arm 4 inside thereby drive movable arm 2 with the retraction of telescopic oil cylinder 5; When the arm pin between fixed arm 4 and the movable arm 2 arrives the pin-and-hole of fixed arm 4, with fixed arm 4 and movable arm 2 lockings, at this moment, make the inside of bearing pin 3 withdrawal telescopic oil cylinders 5 by the arm pin, afterwards telescopic boom can normally stretch, action such as luffing, finish the installation of telescopic boom.
In the telescopic boom unloading process, during initial condition, bearing pin 3 still is in retracted mode, at first the arm pin between movable arm 2 and the fixed arm 4 is unlocked, by hydraulic-driven bearing pin 3 is extend out to groove 21 and clamp, thereby by bearing pin 3 telescopic oil cylinder 5 is captiveed joint with movable arm 2; Then extend telescopic oil cylinder 5, make telescopic oil cylinder 5 drive movable arms 2 extend out to movable arm 2 with respect to fixed arm 4 and break away from fixed arm 4 fully, make bearing pin 3 withdrawals afterwards, telescopic oil cylinder 5 is retracted in the fixed arm 4, finishes the fractionation of telescopic boom.
Like this, joint arm attaching/detaching apparatus provided by the present invention utilizes the own telescopic oil cylinder 5 of hoisting crane as the dynamical element of dismounting joint arm, and by the side at telescopic oil cylinder 5 telescopic bearing pin 3 is set, realize the fixed and release of movable arm 2 to be assembled and the pin between the fixed arm 4, structure is comparatively simple, and the weight-lifting equipment that need not optional equipment provides dismounting power, reduces the accessory equipment of using in the joint arm disassembly process; Simultaneously, the stretching speed of telescopic oil cylinder 5 is intuitively controlled, thereby has avoided acutely rocking of telescopic boom in the disassembly process, reduces operational risk.
Can also be provided with reposition element between above-mentioned bearing pin 3 and the telescopic oil cylinder 5, in order to drive bearing pin 3 withdrawals by this reposition element, thereby make that bearing pin 3 was retracted to initial position automatically when external force disappeared under the driving of reposition element, improve the alerting ability of device, reduced labour intensity.
Particularly, above-mentioned reposition element can be the spring 6 that is sheathed on bearing pin 3, and the two ends of spring 6 are individually fixed in bearing pin 3 and telescopic oil cylinder 5, and bearing pin 3 is in spring 6 elongations when stretching out state; Like this, when bearing pin 3 loses time spent of doing of other external force, can under the effect of spring 6 elastic force, bounce back, reset realizing; Spring 6 is simple in structure, is convenient to install.
Theoretically, above-mentioned reposition element also is not limited to spring 6, as long as can realize bearing pin 3 the automatically reseting of the set moment, for example reposition element can be oil cylinder etc.
Particularly, above-mentioned groove 21 can comprise accommodation section 211 and clamp portion 212, clamp portion 212 and be arranged at the periphery of described accommodation section 211, accommodation section 211 holds telescopic oil cylinder 5, bearing pin 3 is installed in the portion of clamping 212, like this, and when bearing pin 3 arrives at accommodation section 211, bearing pin 3 stretches out and cooperates with the portion of clamping 212, is convenient to realize the location of bearing pin 3.
Above-mentioned bearing pin 3 can have two, is arranged at the both sides of telescopic oil cylinder 5 respectively, and is corresponding, clamps portion 212 and also is provided with two, is divided into the both sides of accommodation section 211, and two bearing pins 3 are installed in respectively in the portion that clamps 212 with its homonymy; Like this, bearing pin 3 clamps both direction realization and accommodation section 211, thereby has improved the fixedly reliability of telescopic oil cylinder 5 with movable arm 2, has guaranteed the smooth dismounting of joint arm.
Above-mentioned bearing pin 3 also is not limited to and is provided with two, and theoretically, the number of bearing pin 3 also can be a plurality of, and each bearing pin 3 circumferentially evenly arranges along telescopic oil cylinder 5.
Can also be provided with between said fixing arm 4 and the movable arm 2 along the director element of installation direction guiding, in joint arm installation process, further adjust position between movable arm 2 and the fixed arm 4 by director element, align precision thereby improved, further simplify installation process.
Particularly, director element can be the guide plate 7 that is installed in described fixed arm 4, and guide plate 7 is positioned at fixed arm 4 near an end of movable arm 2, when movable arm 2 is installed, realizes guiding by guide plate 7, and structure is comparatively simple.
Director element also can have other forms, for example, can offer guide slide at fixed arm 4, at movable arm 2 orienting lug is installed, cooperation by orienting lug and guide slide realizes guiding etc., but this kind structure is comparatively complicated, is not easy to use at large-scale construction machinery and equipment.
In the above-mentioned specific embodiment, joint arm attaching/detaching apparatus provided by the present invention also comprises flat truck 8, and this movable arm 2 is supported in flat truck 8; Like this, support movable arm 2 by flat truck 8, guaranteed the stationarity in movable arm 2 disassembly processes.
Can be provided with bearing 81 on flat truck 8, movable arm 2 is installed on flat truck 8 by bearing 81, to improve the installation capability of movable arm 2 and flat truck 8; Theoretically, also movable arm 2 directly can be placed on the flat truck 8.
Above-mentioned movable arm 2 can be connected by hinge with bearing 81, to improve both connection reliability; Being connected between movable arm 2 and the bearing 81 also can be conventional other connection modes of using in this area, for example bolt connection etc.
Be example with the above-mentioned specific embodiment below, sketch the working process of joint arm attaching/detaching apparatus provided by the present invention.
New field of technical activity:
1) fixed arm 4 is connected on the hoisting crane, and inside comprises telescopic oil cylinder 5, and fixed arm 4 can be a joint, also can be more piece;
2) on the flat truck 8 arm bearing 81 is housed, is placed with movable arm to be assembled 2 on the bearing 81, movable arm 2 can be a joint, also can be more piece;
Assembling stage:
Be that example describes with pack into the process of fixed arm 4 of two joint telescopic booms, on the flat truck 8 bearing 81 arranged fixedly as shown in Figure 3, movable arm 2 to be installed is positioned on the bearing 81 and fixes by slide fastener with bearing 81; During initial condition, bearing pin 3 is in retracted state, and flat truck 8 and fixed arm 4 relative positions are adjusted, and the arm mouth of fixed arm 4 and the afterbody of movable arm 2 are aligned.As Fig. 7 and shown in Figure 10, telescopic oil cylinder 5 is slowly stretched out forward, when groove 21 that its bearing pin 3 arrives on movable arms 2, stop, this moment is by hydraulic-driven, bearing pin 3 is stretched out and is installed in the groove 21.This moment the telescopic oil cylinder 5 of withdrawing, guide plate 7 (arm is pulled down after packing into) plays directional tagging when movable arm 2 enters fixed arm 4, movable arm 2 enters fixed arm 4 inside with the retraction of telescopic oil cylinder 5.When the original arm pin of single-cylinder bolt telescopic boom (being used for locking between arm and the arm) when arriving the pin-and-hole of fixed arm 4, with arm pin and arm locking, bearing pin 3 withdrawals, telescopic boom can enter actions such as normal flexible, luffing afterwards, adorns the arm process and finishes.
The dismounting stage:
During initial condition, bearing pin 3 still is in retracted mode, at first the arm pin between movable arm 2 and the fixed arm 4 is unlocked, and by hydraulic-driven bearing pin 3 is extend out to groove 21 and clamps, thereby by bearing pin 3 telescopic oil cylinder 5 is captiveed joint with movable arm 2; Then extend telescopic oil cylinder 5, make telescopic oil cylinder 5 drive movable arms 2 extend out to movable arm 2 with respect to fixed arm 4 and break away from fixed arm 4 fully, make bearing pin 3 withdrawals afterwards, telescopic oil cylinder 5 is retracted in the fixed arm 4, finishes the fractionation of telescopic boom.
More than a kind of joint arm attaching/detaching apparatus for hoisting crane provided by the present invention is described in detail.Used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (10)
1. a joint arm attaching/detaching apparatus that is used for hoisting crane is characterized in that, comprises the terminal groove (21) of movable arm (2) that is opened in described hoisting crane, with the bearing pin (3) that clamps or separate with described groove (21); Described bearing pin (3) is arranged at telescopic oil cylinder (5) sidewall of the fixed arm (4) of described hoisting crane, and in the extending radially out or withdrawing of the described telescopic oil cylinder in the effect lower edge of propulsion source (5), described bearing pin (3) is in when stretching out state and described groove (21) clamps.
2. the joint arm attaching/detaching apparatus for hoisting crane according to claim 1 is characterized in that, is provided with reposition element between described bearing pin (3) and the described telescopic oil cylinder (5), and described reposition element drives described bearing pin (3) withdrawal.
3. the joint arm attaching/detaching apparatus for hoisting crane according to claim 2, it is characterized in that, described reposition element is for being sheathed on the spring (6) of described bearing pin (3), the two ends of described spring (6) are individually fixed in described bearing pin (3) and described telescopic oil cylinder (5), and described bearing pin (3) is in described spring (6) elongation when stretching out state.
4. the joint arm attaching/detaching apparatus for hoisting crane according to claim 1, it is characterized in that, described groove (21) comprises accommodation section (211) and clamps portion (212), describedly clamp the periphery that portion (212) is arranged at described accommodation section (211), described accommodation section (211) holds described telescopic oil cylinder (5), and described bearing pin (3) is installed in the described portion (212) that clamps.
5. the joint arm attaching/detaching apparatus for hoisting crane according to claim 4, it is characterized in that, described bearing pin (3) has two, be arranged at the both sides of described telescopic oil cylinder (5) respectively, the described portion (212) that clamps has two, be divided into the both sides of described accommodation section (211), two described bearing pins (3) are installed in the described portion (212) that clamps with its homonymy respectively.
6. according to each described joint arm attaching/detaching apparatus for hoisting crane of claim 1 to 5, it is characterized in that, be provided with between described fixed arm (4) and the described movable arm (2) along the director element of installation direction guiding.
7. the joint arm attaching/detaching apparatus for hoisting crane according to claim 6, it is characterized in that, described director element is for being installed in the guide plate (7) of described fixed arm (4), and described guide plate (7) is positioned at described fixed arm (4) near an end of described movable arm (2).
8. according to each described joint arm attaching/detaching apparatus for hoisting crane of claim 1 to 5, it is characterized in that also comprise flat truck (8), described movable arm (2) is supported in described flat truck (8).
9. the joint arm attaching/detaching apparatus for hoisting crane according to claim 8 is characterized in that described flat truck (8) is provided with bearing (81), and described movable arm (2) is installed on described flat truck (8) by described bearing (81).
10. the joint arm attaching/detaching apparatus for hoisting crane according to claim 9 is characterized in that, described movable arm (2) is connected with described bearing (81) hinge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310284331.8A CN103342298B (en) | 2013-07-08 | 2013-07-08 | A kind of joint arm attaching/detaching apparatus for hoisting crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310284331.8A CN103342298B (en) | 2013-07-08 | 2013-07-08 | A kind of joint arm attaching/detaching apparatus for hoisting crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103342298A true CN103342298A (en) | 2013-10-09 |
| CN103342298B CN103342298B (en) | 2015-09-16 |
Family
ID=49277141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310284331.8A Active CN103342298B (en) | 2013-07-08 | 2013-07-08 | A kind of joint arm attaching/detaching apparatus for hoisting crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103342298B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107264377A (en) * | 2017-06-27 | 2017-10-20 | 徐州重型机械有限公司 | A kind of crane arm often tears arm joint attaching/detaching apparatus and assembly and disassembly methods open |
| CN114537258A (en) * | 2022-03-31 | 2022-05-27 | 湖南三一中型起重机械有限公司 | Knuckle arm support frame and knuckle arm dismouting auxiliary device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5465855A (en) * | 1993-04-10 | 1995-11-14 | Fried. Krupp Ag Hoesch-Krupp | Telescoping crane arm |
| US5515654A (en) * | 1994-11-02 | 1996-05-14 | Anderson; Edward E. | Telescopic boom apparatus |
| CN101676190A (en) * | 2008-07-25 | 2010-03-24 | 利勃海尔爱茵根有限公司 | Method for assembly of a telescopic suspension arm of crane and apparatus for execution of the method |
| CN101850935A (en) * | 2010-06-22 | 2010-10-06 | 三一汽车起重机械有限公司 | Single-cylinder pin type telescopic arm device and pin interlocking device |
| CN203612846U (en) * | 2013-07-08 | 2014-05-28 | 徐州重型机械有限公司 | Knuckle arm assembling and disassembling device for crane |
-
2013
- 2013-07-08 CN CN201310284331.8A patent/CN103342298B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5465855A (en) * | 1993-04-10 | 1995-11-14 | Fried. Krupp Ag Hoesch-Krupp | Telescoping crane arm |
| US5515654A (en) * | 1994-11-02 | 1996-05-14 | Anderson; Edward E. | Telescopic boom apparatus |
| CN101676190A (en) * | 2008-07-25 | 2010-03-24 | 利勃海尔爱茵根有限公司 | Method for assembly of a telescopic suspension arm of crane and apparatus for execution of the method |
| CN101850935A (en) * | 2010-06-22 | 2010-10-06 | 三一汽车起重机械有限公司 | Single-cylinder pin type telescopic arm device and pin interlocking device |
| CN203612846U (en) * | 2013-07-08 | 2014-05-28 | 徐州重型机械有限公司 | Knuckle arm assembling and disassembling device for crane |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107264377A (en) * | 2017-06-27 | 2017-10-20 | 徐州重型机械有限公司 | A kind of crane arm often tears arm joint attaching/detaching apparatus and assembly and disassembly methods open |
| CN107264377B (en) * | 2017-06-27 | 2020-06-19 | 徐州重型机械有限公司 | Dismounting device and dismounting method for normally dismounted boom section of crane boom |
| CN114537258A (en) * | 2022-03-31 | 2022-05-27 | 湖南三一中型起重机械有限公司 | Knuckle arm support frame and knuckle arm dismouting auxiliary device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103342298B (en) | 2015-09-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2436639B1 (en) | Counterweight loading and unloading device and movable crane | |
| CN102464273B (en) | Offshore fan installing platform and fan integral installation rotary holding and lifting mechanism | |
| CN100557284C (en) | Marine pipe laying system, method and crane gear | |
| CN106219421B (en) | A kind of multi-stage expansion mechanism and engineering machinery | |
| CN105464693A (en) | Device for retracting support from underground working face of coal mine | |
| CN103058077A (en) | A crane and a boom thereof | |
| CN103342298A (en) | Knuckle arm disassembling and assembling device for crane | |
| CN203612846U (en) | Knuckle arm assembling and disassembling device for crane | |
| CN114148895A (en) | Structural tube hoisting device for ocean engineering | |
| CN202729666U (en) | Three-stage telescopic support leg structure of lorry-mounted crane | |
| CN102826447A (en) | Truss jib crane as well as getting-off structure and position transferring method thereof | |
| CN103231988A (en) | Tower crane, trolley thereof and rope winding multiplying power changing method | |
| CN107264377A (en) | A kind of crane arm often tears arm joint attaching/detaching apparatus and assembly and disassembly methods open | |
| CN202011707U (en) | Synchronous arm-body telescopic device with single cylinder and sets of inhaul cables of lorry-mounted crane | |
| CN204162273U (en) | The lifting appliance of cylindrical component | |
| CN106744263A (en) | Lifting hook mechanism, conversion method of working state of lifting hook mechanism and tower crane | |
| CN203128075U (en) | Multi-section arm telescopic device and engineering mechanical equipment | |
| CN202054553U (en) | Telescopic arm crane, single-cylinder bolt type telescopic arm thereof and cylinder-bolt synchronization device | |
| CN104340882A (en) | Folding cantilever crane and crane | |
| CN202046790U (en) | Automatic hoisting tool of annular member | |
| CN202379629U (en) | Super lifting device and crane | |
| CN106342051B (en) | A kind of automatic capturing releasing device without cable submersible | |
| CN107640286B (en) | A kind of windlass | |
| CN203382412U (en) | Telescopic boom type crane and boom pin device for same | |
| CN209293548U (en) | Self-unloading cluster overhead torch assembling and disassembling device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |