CN203612846U - Knuckle arm assembling and disassembling device for crane - Google Patents
Knuckle arm assembling and disassembling device for crane Download PDFInfo
- Publication number
- CN203612846U CN203612846U CN201320405596.4U CN201320405596U CN203612846U CN 203612846 U CN203612846 U CN 203612846U CN 201320405596 U CN201320405596 U CN 201320405596U CN 203612846 U CN203612846 U CN 203612846U
- Authority
- CN
- China
- Prior art keywords
- arm
- bearing pin
- oil cylinder
- telescopic oil
- hoisting crane
- 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.)
- Withdrawn - After Issue
Links
Images
Abstract
The utility model discloses a knuckle arm assembling and disassembling device for a crane. The knuckle arm assembling and disassembling device comprises a groove which is formed in the tail end of a movable arm to be assembled and disassembled, and a pin shaft which is clamped with the groove or is separated from the groove; the pin shaft is arranged on the side wall of a telescopic oil cylinder of a fixed arm matched with the movable arm, and extends out or retracts along the radial direction of the telescopic oil cylinder under the action of a power source; the pin shaft is clamped with the groove when in an extending state; the pin shaft is not clamped with the groove and can be separated from the groove when in a retreating state. In such a way, the telescopic oil cylinder of the crane serves as a power element for disassembling and assembling the knuckle arm, and the telescopic pin shaft is arranged on the side surface of the telescopic oil cylinder, so that the fixing and the releasing between the movable arm to be assembled and the fixed arm are realized; the structure is simple; auxiliary equipment used in the assembling and disassembling processes of the knuckle arm is reduced; meanwhile, the telescopic speed of the telescopic oil cylinder can be seen and controlled, so that violent shaking of the telescopic arm in the assembling and disassembling processes is avoided, and operating risk is reduced.
Description
Technical field
The utility model 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 carrying when lifting all realizes by crane arm, and its quality can affect the in-use performance of hoisting crane to a great extent.
The car hosit that tonnage is less generally uses oil cylinder rope row formula telescopic boom device, conventionally by the synchronization telescope of two telescopic oil cylinders and pulley and the each joint telescopic boom of rope row drive.But along with the progressively development that product maximizes, the arm weight that oil cylinder rope row formula telescopic boom device is larger and less load-carrying capacity cannot meet the needs in market.
Large tonnage hoisting crane generally adopts single cylinder bolt-type telescopic arm device.This kind of device driven by a telescopic oil cylinder, and the cylinder barrel of telescopic oil cylinder has cylinder pin and plug-in and pull-off device, and by being selectively connected between cylinder pin and arbitrary joint telescopic boom, and its cylinder bar end is fixed on the arm tail of basic arm.In the time that each joint telescopic boom stretches out with respect to basic arm, cylinder pin first with minor details arm locking, and arm pin between minor details arm and adjacent segments arm opens, other each arm pins all lock, cylinder barrel stretches out, thereby drives minor details arm to stretch out; Minor details arm reaches after preposition, again pins the arm pin between minor details arm and adjacent segments arm, the release of cylinder pin, and cylinder barrel is regained.Repeat above process, can realize stretching out successively of each joint arm.
For large tonnage hoisting crane, its complete vehicle weight is larger, and domestic communication laws and regulations requirement car load road weight can not transfinite, and therefore, when crane mainframe transhipment, some parts on car need be carried out to dismounting.Crane arm occupies larger specific gravity in complete machine weight, generally can reach 20%～25%, and in hoister in large tonnage, the part by weight of crane arm is higher, and hoisting crane, in the time of transition, is removed crane arm to transport respectively conventionally.
As depicted in figs. 1 and 2, the assembly and disassembly methods of traditional single-cylinder pin-type erector arm of crane is to use two or more 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 this joint joint arm 11 is installed or separated with fixed arm 12 of crane; Need another auxiliary power simultaneously, for example, plug in car or motorcycle etc. and complete the suit of each joint arm or disassemble.
But traditional disassembly process needs more main equipment auxiliary, telescopic boom suit process need staff range estimation aligns, and the crane arm of assembling belongs to relatively large equipment, size, weight are all larger, and comparatively difficulty is adjusted in staff's range estimation repeatedly, is difficult for aligning; Disassembly process needs multiple devices and more personnel jointly to coordinate just can complete, consuming time longer, has relatively high expectations for personnel's operant level and cooperate degree; , tear open in arm process meanwhile, more and more tighter to the clamping stagnation of telescopic boom owing to being about to extract front fixed arm, adopt whipline side direction oblique pull and tractive force F effect, the moment that joint arm is extracted can produce larger 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 joint arm disassembly process, avoid acutely rocking of telescopic boom in disassembly process simultaneously, reduce operational risk, need the problem of solution with regard to becoming those skilled in the art badly.
Utility model content
The purpose of this utility model is to provide a kind of joint arm attaching/detaching apparatus for hoisting crane, and it can reduce the accessory equipment of using in joint arm disassembly process, avoids acutely rocking of telescopic boom in disassembly process simultaneously, reduces operational risk.
For solving the problems of the technologies described above, the utility model provides a kind of joint arm attaching/detaching apparatus for hoisting crane, comprises 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 under the effect of propulsion source along the extending radially out or retracting of described telescopic oil cylinder, described bearing pin in the time stretching out state and described groove clamp.
Preferably, between described bearing pin and described telescopic oil cylinder, be provided with reposition element, described reposition element drives described bearing pin to retract.
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 in the time stretching out state described in spring extend.
Preferably, described groove comprises accommodation section and clamps portion, described in the portion of clamping be arranged at the periphery of described accommodation section, described accommodation section holds described telescopic oil cylinder, described in described bearing pin is installed in, clamps portion.
Preferably, described bearing pin has two, is arranged at respectively the both sides of described telescopic oil cylinder, described in the portion of clamping have two, be divided into the both sides of described accommodation section, described in two, bearing pin is installed in respectively with described in its homonymy and clamps portion.
Preferably, between described fixed arm and described movable arm, be provided with along the director element of installation direction guiding.
Preferably, described director element is the guide plate that is arranged on described fixed arm, and described guide plate is positioned at described fixed arm one end near described movable arm.
Preferably, also comprise flat truck, described movable arm is supported in described flat truck.
Preferably, on described flat truck, be provided with bearing, described movable arm is installed on described flat truck by described bearing.
Preferably, described movable arm is connected with described bearing hinge.
Joint arm attaching/detaching apparatus provided by the utility model is for each joint telescopic boom of dismantling crane, and this joint arm attaching/detaching apparatus comprises the groove that is opened in the movable arm end 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 coordinating with above-mentioned movable arm, and extending radially out or retracting along telescopic oil cylinder under the effect of propulsion source, bearing pin in the time stretching out state and groove clamp, bearing pin in the time of retracted mode and groove remove and clamp, and can separate with groove.
In telescopic boom installation process, when initial condition, bearing pin is in retracted mode, the relative position of adjusting movable arm and fixed arm, aligns the arm mouth of fixed arm and the end of movable arm, and the telescopic oil cylinder in fixed arm is slowly stretched out forward, in the time that arriving the groove location on movable arm, the bearing pin on telescopic oil cylinder stops, now by hydraulic-driven, make bearing pin along the extending radially out and be installed in groove of telescopic oil cylinder, by bearing pin, telescopic oil cylinder is fixedly connected with movable arm; Then, retraction telescopic oil cylinder, thus drive movable arm to enter fixed arm inside with the retraction of telescopic oil cylinder; In the time that arm pin between fixed arm and movable arm arrives the pin-and-hole of fixed arm, by arm pin, fixed arm and movable arm are locked, now, make the inside of bearing pin retraction telescopic oil cylinder, afterwards telescopic boom can normally stretch, the action such as luffing, complete the installation of telescopic boom.
In telescopic boom unloading process, when initial condition, bearing pin, still in retracted mode, first unlocks the arm pin between movable arm and fixed arm, by hydraulic-driven, bearing pin is extend out to groove and clamp, thereby by bearing pin, telescopic oil cylinder is fixedly connected with movable arm; Then extend telescopic oil cylinder, make telescopic oil cylinder drive movable arm to extend out to movable arm with respect to fixed arm and depart from fixed arm completely, make afterwards bearing pin retract, telescopic oil cylinder is retracted in fixed arm, completes the fractionation of telescopic boom.
Like this, joint arm attaching/detaching apparatus provided by the utility model utilizes the dynamical element of the own telescopic oil cylinder of hoisting crane as dismounting joint arm, and by telescopic bearing pin being set in the side of telescopic oil cylinder, the pin of realizing between movable arm and fixed arm to be assembled is determined and discharges, structure is comparatively simple, and provide dismounting power without the weight-lifting equipment of optional equipment, reduce the accessory equipment of using in joint arm disassembly process; Meanwhile, the stretching speed of telescopic oil cylinder is intuitively controlled, thereby has avoided acutely rocking of telescopic boom in disassembly process, reduces operational risk.
One preferred embodiment in, between the bearing pin of joint arm attaching/detaching apparatus provided by the utility model and telescopic oil cylinder, can also be provided with reposition element, to drive bearing pin to retract by this reposition element, thereby when external force is disappeared, bearing pin under the driving of reposition element automatic retraction to initial position, the alerting ability that has improved device, has reduced labour intensity.
In the another kind of specific embodiment, between the fixed arm of joint arm attaching/detaching apparatus provided by the utility model and movable arm, can also be provided with along the director element of installation direction guiding, in joint arm installation process, further adjust the position between movable arm and fixed arm by director element, align precision thereby improved, further simplify installation process.
Accompanying drawing explanation
Fig. 1 is the structural representation of traditional joint arm confined state;
Fig. 2 is the structural representation that traditional joint arm is disassembled state;
Fig. 3 is the structural representation of joint arm attaching/detaching apparatus provided by the utility model in telescopic boom state to be assembled;
Fig. 4 is the partial schematic diagram of the movable arm of A1 direction shown in Fig. 3;
Fig. 5 is the partial schematic diagram of the telescopic oil cylinder of A1 direction shown in Fig. 3;
Fig. 6 is the enlarged view of A part in Fig. 5;
Fig. 7 is the structural representation of joint arm attaching/detaching apparatus provided by the utility model in telescopic boom fitting process;
Fig. 8 is the partial schematic diagram of A2 direction movable arm and telescopic oil cylinder in Fig. 7;
Fig. 9 is the enlarged view of B part in Fig. 8;
Figure 10 is the structural representation of joint arm attaching/detaching apparatus provided by the utility model in assembling completion status.
The specific embodiment
Core of the present utility model is to provide a kind of joint arm attaching/detaching apparatus for hoisting crane, and it can reduce the accessory equipment of using in joint arm disassembly process, avoids acutely rocking of telescopic boom in disassembly process simultaneously, reduces operational risk.
In order to make those skilled in the art person understand better the technical solution of the utility model, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Please refer to Fig. 3 to Figure 10, Fig. 3 is the structural representation of joint arm attaching/detaching apparatus provided by the utility model in telescopic boom state to be assembled; Fig. 4 is the partial schematic diagram of the movable arm of A1 direction shown in Fig. 3; Fig. 5 is the partial schematic diagram of the telescopic oil cylinder of A1 direction shown in Fig. 3; Fig. 6 is the enlarged view of A part in Fig. 5; Fig. 7 is the structural representation of joint arm attaching/detaching apparatus provided by the utility model in telescopic boom fitting process; Fig. 8 is the partial schematic diagram of A2 direction movable arm and telescopic oil cylinder in Fig. 7; Fig. 9 is the enlarged view of B part in Fig. 8; Figure 10 is the structural representation of joint arm attaching/detaching apparatus provided by the utility model in assembling completion status.
In a kind of specific embodiment, joint arm attaching/detaching apparatus provided by the utility model is for each joint telescopic boom of dismantling crane, this joint arm attaching/detaching apparatus comprises the groove 21 that is opened in 2 ends of the movable arm 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 coordinating with above-mentioned movable arm 2, and extending radially out or retracting along telescopic oil cylinder 5 under the effect of propulsion source, bearing pin 3 in the time stretching out state and groove 21 clamp, bearing pin 3 in the time of retracted mode and groove 21 remove and clamp, and can separate with groove 21.
It is pointed out that movable arm 2 described in literary composition refers to joint arm to be removed or to be installed; Fixed arm 4 refers to the joint arm being fixed on hoisting crane, and fixed arm 4 can be a joint basic arm, can be also the already installed joint arm of more piece, same, and movable arm 2 can be a joint, can be also the more piece joint arm of suit.
The end of above-mentioned movable arm 2 refers to its one end near 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 telescopic oil cylinder 5 is communicated with, and drives bearing pin 3 stretch out or retract with respect to telescopic oil cylinder 5 by hydraulic oil in bearing pin 3.Apparently, propulsion source can be also to drive bearing pin 3 along conventional dynamical elements using such as the oil cylinders of the radial expansion of telescopic oil cylinder 5.
In telescopic boom installation process, when 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 in fixed arm 45 is slowly stretched out forward, in the time that arriving groove 21 position on movable arm 2, the bearing pin 3 on telescopic oil cylinder 5 stops, now pass through hydraulic-driven, make bearing pin 3 along the extending radially out and be installed in groove 21 of telescopic oil cylinder 5, by bearing pin 3, telescopic oil cylinder 5 is fixedly connected with movable arm 2; Then, retraction telescopic oil cylinder 5, thus drive movable arm 2 to enter fixed arm 4 inside with the retraction of telescopic oil cylinder 5; In the time that the arm pin between fixed arm 4 and movable arm 2 arrives the pin-and-hole of fixed arm 4, by arm pin, fixed arm 4 and movable arm 2 are locked, now, make the inside of bearing pin 3 retraction telescopic oil cylinders 5, afterwards telescopic boom can normally stretch, the action such as luffing, complete the installation of telescopic boom.
In telescopic boom unloading process, when initial condition, bearing pin 3, still in retracted mode, first unlocks the arm pin between movable arm 2 and fixed arm 4, by hydraulic-driven, bearing pin 3 is extend out to groove 21 and clamp, thereby by bearing pin 3, telescopic oil cylinder 5 is fixedly connected with movable arm 2; Then extend telescopic oil cylinder 5, make telescopic oil cylinder 5 drive movable arm 2 to extend out to movable arm 2 with respect to fixed arm 4 and depart from fixed arm 4 completely, make afterwards bearing pin 3 retract, telescopic oil cylinder 5 is retracted in fixed arm 4, completes the fractionation of telescopic boom.
Like this, joint arm attaching/detaching apparatus provided by the utility model utilizes the dynamical element of hoisting crane own telescopic oil cylinder 5 as dismounting joint arm, and by telescopic bearing pin 3 is set in the side of telescopic oil cylinder 5, the pin of realizing between movable arm to be assembled 2 and fixed arm 4 is determined and discharges, structure is comparatively simple, and provide dismounting power without the weight-lifting equipment of optional equipment, reduce the accessory equipment of using in joint arm disassembly process; Meanwhile, the stretching speed of telescopic oil cylinder 5 is intuitively controlled, thereby has avoided acutely rocking of telescopic boom in disassembly process, reduces operational risk.
Between above-mentioned bearing pin 3 and telescopic oil cylinder 5, can also be provided with reposition element, to drive bearing pin 3 to retract by this reposition element, thus when external force is disappeared, bearing pin 3 under the driving of reposition element automatic retraction to initial position, the alerting ability that has improved device, has reduced labour intensity.
Particularly, above-mentioned reposition element can be for being sheathed on the spring 6 of 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 spring 6 in the time stretching out state extends; Like this, when bearing pin 3 loses used time of doing of other external force, can under the effect of spring 6 elastic force, bounce back, to realize reset; Spring 6 is simple in structure, is convenient to install.
From theory, above-mentioned reposition element is also not limited to spring 6, as long as can realize bearing pin 3 the automatically reseting of set moment, such as reposition element can be oil cylinder etc.
Particularly, above-mentioned groove 21 can comprise accommodation section 211 and clamp portion 212, clamp the periphery that portion 212 is arranged at 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 stretch out and with clamp portion 212 and coordinate, be convenient to realize the location of bearing pin 3.
Above-mentioned bearing pin 3 can have two, is arranged at respectively the both sides of telescopic oil cylinder 5, corresponding, clamps portion 212 and is also 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 is realized and the clamping of accommodation section 211 on both direction, thereby has improved the fixing reliability of telescopic oil cylinder 5 with movable arm 2, has guaranteed the smooth dismounting of joint arm.
Above-mentioned bearing pin 3 is also not limited to and is provided with two, and from theory, the number of bearing pin 3 can be also multiple, and each bearing pin 3 circumferentially evenly arranges along telescopic oil cylinder 5.
Between above-mentioned fixed arm 4 and movable arm 2, can also be provided with along the director element of installation direction guiding, in joint arm installation process, further adjust the position between movable arm 2 and fixed arm 4 by director element, align precision thereby improved, further simplify installation process.
Particularly, director element can be for being arranged on the guide plate 7 of described fixed arm 4, and guide plate 7 is positioned at fixed arm 4 one end near movable arm 2, in the time that 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 on fixed arm 4, offer guide slide, on movable arm 2, orienting lug is installed, cooperation by orienting lug and guide slide realizes guiding etc., but this kind of structure is comparatively complicated, is not easy to use on large-scale construction machinery and equipment.
In the above-mentioned specific embodiment, joint arm attaching/detaching apparatus provided by the utility model also comprises flat truck 8, and this movable arm 2 is supported in flat truck 8; Like this, by flat truck 8 movable support arms 2, guaranteed the stationarity in movable arm 2 disassembly processes.
On flat truck 8, can be provided with bearing 81, 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; From theory, also movable arm 2 directly can be placed on flat truck 8.
Above-mentioned movable arm 2 and bearing 81 can chain connections, to improve both connection reliability; Being connected between movable arm 2 and bearing 81 can be also conventional other connection modes that use in this area, such as bolt connection etc.
Take the above-mentioned specific embodiment as example, sketch the working process of joint arm attaching/detaching apparatus provided by the utility model below.
New field of technical activity:
1) fixed arm 4 is connected on hoisting crane, and inside comprises telescopic oil cylinder 5, and fixed arm 4 can be a joint, can be also more piece;
2) on flat truck 8, arm bearing 81 is housed, is placed with movable arm to be assembled 2 on bearing 81, movable arm 2 can be a joint, can be also more piece;
Assembling stage:
Pack the process of fixed arm 4 into take two joint telescopic booms as example describes, be fixed with bearing 81 as shown in Figure 3 on flat truck 8, movable arm 2 to be installed is positioned on bearing 81 and with bearing 81 to be fixed by slide fastener; When initial condition, bearing pin 3, in retracted state, is adjusted flat truck 8 and fixed arm 4 relative positions, makes as far as possible the arm mouth of fixed arm 4 and the afterbody of movable arm 2 align.As shown in Fig. 7 and Figure 10, telescopic oil cylinder 5 is slowly stretched out forward, in the time that arriving the groove 21 on movable arm 2, its bearing pin 3 stops, and now, by hydraulic-driven, bearing pin 3 is stretched out and be installed in groove 21.The telescopic oil cylinder 5 of now retracting, guide plate 7 (arm is pulled down after packing into) plays directional tagging in the time that movable arm 2 enters fixed arm 4, and movable arm 2 enters fixed arm 4 inside with the retraction of telescopic oil cylinder 5.In the time that the original arm pin of single-cylinder bolt telescopic boom (locking between for arm and arm) arrives the pin-and-hole of fixed arm 4, by arm pin and arm locking, bearing pin 3 is retracted, and telescopic boom can enter the actions such as normal flexible, luffing afterwards, fills arm process and completes.
The dismounting stage:
When initial condition, bearing pin 3, still in retracted mode, first unlocks the arm pin between movable arm 2 and fixed arm 4, by hydraulic-driven, bearing pin 3 is extend out to groove 21 and clamps, thereby by bearing pin 3, telescopic oil cylinder 5 is fixedly connected with movable arm 2; Then extend telescopic oil cylinder 5, make telescopic oil cylinder 5 drive movable arm 2 to extend out to movable arm 2 with respect to fixed arm 4 and depart from fixed arm 4 completely, make afterwards bearing pin 3 retract, telescopic oil cylinder 5 is retracted in fixed arm 4, completes the fractionation of telescopic boom.
Above a kind of joint arm attaching/detaching apparatus for hoisting crane provided by the utility model is described in detail.Applied specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment is just for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (10)
1. for a joint arm attaching/detaching apparatus for hoisting crane, it is characterized in that, comprise the groove (21) of movable arm (2) end 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 under the effect of propulsion source along the extending radially out or retracting of described telescopic oil cylinder (5), described bearing pin (3) in the time stretching out state and described groove (21) clamp.
2. the joint arm attaching/detaching apparatus for hoisting crane according to claim 1, is characterized in that, between described bearing pin (3) and described telescopic oil cylinder (5), is provided with reposition element, and described reposition element drives described bearing pin (3) to retract.
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) in the time stretching out state described in spring (6) extend.
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), the described periphery that clamps portion (212) and be arranged at described accommodation section (211), described accommodation section (211) holds described telescopic oil cylinder (5), described in described bearing pin (3) is installed in, clamps portion (212).
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 respectively the both sides of described telescopic oil cylinder (5), the described portion (212) that clamps has two, be divided into the both sides of described accommodation section (211), bearing pin described in two (3) is installed in respectively and described in its homonymy, clamps portion (212).
6. according to the joint arm attaching/detaching apparatus for hoisting crane described in claim 1 to 5 any one, it is characterized in that, between described fixed arm (4) and described movable arm (2), be provided with 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 arranged on the guide plate (7) of described fixed arm (4), and described guide plate (7) is positioned at described fixed arm (4) one end near described movable arm (2).
8. according to the joint arm attaching/detaching apparatus for hoisting crane described in claim 1 to 5 any one, 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, on described flat truck (8), be provided with bearing (81), 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) and described bearing (81) chain connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320405596.4U CN203612846U (en) | 2013-07-08 | 2013-07-08 | Knuckle arm assembling and disassembling device for crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320405596.4U CN203612846U (en) | 2013-07-08 | 2013-07-08 | Knuckle arm assembling and disassembling device for crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203612846U true CN203612846U (en) | 2014-05-28 |
Family
ID=50765505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320405596.4U Withdrawn - After Issue CN203612846U (en) | 2013-07-08 | 2013-07-08 | Knuckle arm assembling and disassembling device for crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203612846U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103342298A (en) * | 2013-07-08 | 2013-10-09 | 徐州重型机械有限公司 | Knuckle arm disassembling and assembling device for crane |
| CN107628548A (en) * | 2017-10-27 | 2018-01-26 | 三汽车起重机械有限公司 | Dismantle auxiliary mould, lifting telescopic arm disassembly system and method |
-
2013
- 2013-07-08 CN CN201320405596.4U patent/CN203612846U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103342298A (en) * | 2013-07-08 | 2013-10-09 | 徐州重型机械有限公司 | Knuckle arm disassembling and assembling device for crane |
| CN103342298B (en) * | 2013-07-08 | 2015-09-16 | 徐州重型机械有限公司 | A kind of joint arm attaching/detaching apparatus for hoisting crane |
| CN107628548A (en) * | 2017-10-27 | 2018-01-26 | 三汽车起重机械有限公司 | Dismantle auxiliary mould, lifting telescopic arm disassembly system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101585491B (en) | Automobile crane and device with multiple sections of telescopic jibs thereof | |
| 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 | |
| CN202609823U (en) | Manual fast-folding lifting mechanism | |
| BR102014003932A2 (en) | pin puller for crane connections | |
| CN203612846U (en) | Knuckle arm assembling and disassembling device for crane | |
| CN103342298B (en) | A kind of joint arm attaching/detaching apparatus for hoisting crane | |
| CN202465022U (en) | Hoisting tool | |
| JP6216876B2 (en) | Equipment for changing roller sets | |
| CN102826447A (en) | Truss jib crane as well as getting-off structure and position transferring method thereof | |
| 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 | |
| CN202054553U (en) | Telescopic arm crane, single-cylinder bolt type telescopic arm thereof and cylinder-bolt synchronization device | |
| CN204224143U (en) | A kind of box crane arm dismounting arm assembly and hoisting crane | |
| CN205330706U (en) | Device of colliery underground operation face withdrawing support | |
| CN212712478U (en) | Dismounting device for cargo boom and balance arm of tower crane | |
| CN209850824U (en) | Centering device for motor and speed reducer | |
| CN202808193U (en) | End beam structure and harbor crane | |
| CN107640286B (en) | A kind of windlass | |
| CN107697229B (en) | A kind of windlass | |
| CN205662285U (en) | But on -site Assembly's portable electric A type hangs | |
| CN106342051B (en) | A kind of automatic capturing releasing device without cable submersible | |
| CN202390136U (en) | Winding mechanism and movable type crane | |
| CN110963425A (en) | Amplitude-variable movable pulley block retracting device convenient for transition | |
| CN205269994U (en) | Quick disassembling and connecting structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140528 Effective date of abandoning: 20150916 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140528 Effective date of abandoning: 20150916 |
|
| RGAV | Abandon patent right to avoid regrant |