CN103601084A - Arm tip pulley mechanism, self-dismounting method thereof and crane - Google Patents
Arm tip pulley mechanism, self-dismounting method thereof and crane Download PDFInfo
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- CN103601084A CN103601084A CN201310629605.2A CN201310629605A CN103601084A CN 103601084 A CN103601084 A CN 103601084A CN 201310629605 A CN201310629605 A CN 201310629605A CN 103601084 A CN103601084 A CN 103601084A
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Abstract
The invention provides an arm tip pulley mechanism, a self-dismounting method thereof and a crane. The arm tip pulley mechanism is arranged on the arm head of the crane, and comprises a pulley frame, an arm tip pulley, a hoisting part and a connection part; the arm tip pulley is rotatably arranged at the head part of the pulley frame, and the tail part of the pulley frame is provided with connection forks respectively correspondingly matching with the two ends of a lower pulley shaft; the hoisting part is arranged on the pulley frame and is disposed between the gravity center of the arm tip pulley mechanism and the tail part of the pulley frame; and one end of the connection part is connected with the head part of the pulley frame, and the other end is detachably connected with an upper pulley shaft. When the arm tip pulley mechanism of a crane is hoisted by a winching steel wire rope of the crane self, the connection fork parts are warped upwards, and because of the lifting of a winch, the connection forks automatically buckle the two ends of the lower pulley shaft, so that the self-dismounting of the arm tip pulley mechanism is realized, then the angel of the arm tip pulley mechanism is fixed by the connection part.
Description
Technical field
The present invention relates to engineering machinery field, particularly a kind of arm point pulley mechanism, arm point pulley mechanism from assembly and disassembly methods and hoisting crane.
Background technology
Current crane jib point pulley is to be all directly installed on principal arm arm head substantially, generally can realize around a side bearing pin rotation folding and unfolding to principal arm arm head one side, but this arm point pulley mechanism can not be realized from dismounting conventionally, and mounting structure and the position of the special use of arm point pulley also must be set on principal arm arm head.There is in addition a kind of arm point pulley mechanism, on arm point pulley yoke, set up an auxiliary scaffold, and Yi Geguo rope sheave mechanism is set on this auxiliary scaffold, by hoisting crane self hoisting rope arm head or the arm point pulley of slinging, but also need to increase the entry that connects that use is installed at arm head front end, corresponding with this arm point pulley mechanism.When hoister in large tonnage need to consider that total weight, parameter size, structural requirement and client need to wait factor, can not be from dismounting if can only fold, or can only by increase arm point pulley that supplementary structure realize from dismounting, what all can not meet arm point pulley waits requirement from dismounting and folding transportation fast, and has increased weight and the complexity of structure.
Summary of the invention
In view of this, the present invention be intended to propose a kind of arm point pulley mechanism, arm point pulley mechanism from assembly and disassembly methods and hoisting crane, with solve realize arm point pulley mechanism fast from requirements such as dismounting and folding transportations.
For achieving the above object, technical scheme of the present invention is achieved in that
On the one hand, the invention provides a kind of arm point pulley mechanism, be arranged on the arm head of hoisting crane, described arm head comprises arm head top sheave, arm head lower sheave, top sheave axle, downslide wheel shaft and the auxiliary mounting hole that is arranged on downslide wheel shaft two ends, described arm point pulley mechanism comprises pulley yoke, arm point pulley, hang holder and attaching parts, the rotating head that is arranged on described pulley yoke of described arm point pulley, the afterbody of described pulley yoke is provided with and connects fork, the described two ends corresponding matching that connects fork and described downslide wheel shaft, the described holder of hanging is arranged on described pulley yoke, and described in hang holder position between the described arm point center of gravity of pulley mechanism and the afterbody of described pulley yoke, described attaching parts one end is connected to the head of described pulley yoke, other end detouchable is connected on described top sheave axle.
Further, described pulley yoke is the shape of falling A truss structure or box-structure.
Further, described attaching parts is cable wire, arm-tie or pipe link.
Further, described arm point pulley is arranged on the head of described pulley yoke by the adapter plate of sheave shaft and both sides; Described arm-tie is provided with identical two groups, and one end of described two groups of arm-ties is hinged on respectively on two described adapter plates, and the other end is articulated on described top sheave axle.
Further, described arm-tie at least comprises detouchable two joints.
Further, described arm-tie comprises three joints, and the length of second section plate is less than the length of first segment plate and the 3rd joint plate.
Further, described in, hang holder for connecting hanger, suspension hook or the suspension ring of the steel rope of elevator.
Further, described hanger is rotating to be connected on described pulley yoke, supine tubular structure at the bottom of the upper end of described hanger is provided with one, sidewall and bottom surface at described tubular structure are provided with the breach corresponding with the wirerope diameter of elevator, and described steel rope is formed and removably connected by described breach and described hanger.
Further, described connecing pitched the prong like that is greater than described lower sheave shaft diameter for opening, in described prong like, be provided with the pin-and-hole corresponding with described auxiliary mounting hole, described in connect fork and be rotatably connected with described downslide wheel shaft formation by the bearing pin that runs through described pin-and-hole and auxiliary mounting hole.
Further, described bearing pin is vertical direction setting, described in connect the line of the pin-and-hole on fork and the angle of described pulley yoke is not less than 90 °.
Further, described in connect and on fork, be provided with many group pin-and-holes, each angle of organizing pin-and-hole and described pulley yoke is different.
On the other hand, the invention also discloses a kind of arm point pulley mechanism from assembly and disassembly methods, it is characterized in that, described arm point pulley mechanism is arm point pulley mechanism as above, it comprises the following steps from assembly and disassembly methods:
Further, in described step 2, in the described process that connects the nearly described downslide wheel shaft of fork-join, also comprise by fine motion hoisting crane rise and fall width and/or by pull the opening that connects fork described in the guide rope adjustment being connected on described pulley yoke towards step.
Further, when the described holder of hanging is while being described hanger, the fag end of described steel rope can be connected fast with described hanger by the breach on described hanger or be separated fast.
On the one hand, the invention also discloses a kind of hoisting crane again, described hoisting crane is provided with arm point pulley mechanism as above.
With respect to prior art, the present invention has following advantage:
Arm point pulley mechanism of the present invention, because being provided with the fork that connects of connection corresponding to the wheel shaft two ends that glide, and its position of hanging holder is arranged between the center of gravity and afterbody of arm point pulley mechanism, therefore, when slinging this arm point pulley mechanism by the hoisting rope of hoisting crane self, connecing fork position is upturned, by hoisting of elevator, can make to connect the two ends that fork is tipped lower sheave axle automatically in, and then realize arm point pulley mechanism from dismounting, and then by attaching parts, the angle of arm point pulley mechanism is fixed.
The advantage having from assembly and disassembly methods and hoisting crane of arm of the present invention point pulley yoke and in like manner upper, repeats no more.
Accompanying drawing explanation
The accompanying drawing that forms a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the front view of the arm point pulley mechanism described in the embodiment of the present invention;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the schematic diagram that the arm-tie in Fig. 2 is folded up;
Fig. 4 is the front view of the hanger of arm point pulley mechanism described in the embodiment of the present invention;
Fig. 5 is the left view of Fig. 4;
Fig. 6 is the birds-eye view of hanger shown in Fig. 4 after separated with steel rope;
Fig. 7 is front view during arm point pulley mechanism described in the lifting embodiment of the present invention;
Fig. 8 is the left view of Fig. 7;
Lateral plan when Fig. 9 has just buckled into downslide wheel shaft two ends for connecing fork in arm point pulley mechanism process described in the lifting embodiment of the present invention;
Figure 10 is the succeeding state of the crane hoisting that continues to hoist at state described in Fig. 9;
Figure 11 is arm point pulley mechanism rigging out drawing is buckled to the lateral plan of top sheave axle described in the embodiment of the present invention;
Figure 12 is from the FB(flow block) of assembly and disassembly methods described in the embodiment of the present invention;
Figure 13 is the concrete means schematic diagram that step 2 is taked in assembly and disassembly methods described in the embodiment of the present invention.
Description of reference numerals:
1-arm point pulley mechanism,
11-arm point pulley, 111-sheave shaft, 112-adapter plate,
12-pulley yoke, 121-connects fork, 122-bearing pin,
13-hanger, 131-tubular structure, 132-breach,
14-arm-tie, 141-first segment plate, 142-second section plate, 143-the 3rd joint plate, 144-hook,
2-principal arm,
3-arm head,
31-arm head top sheave,
32-arm head lower sheave,
33-downslide wheel shaft, 331-auxiliary mounting hole,
34-top sheave axle,
4-steel rope, 41-fag end.
The specific embodiment
It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the present invention can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
Relevant drawings referring to Fig. 1 to Figure 11 is known, arm described in the present embodiment point pulley mechanism 1 is the device that the arm head 3 with main arm of crane 2 is used in conjunction with, common, the arm head 3 of principal arm 2 is provided with arm head top sheave 31, arm head lower sheave 32, top sheave axle 34 and downslide wheel shaft 33, is provided with for connecting the auxiliary mounting hole 331 of auxiliary at the two ends of downslide wheel shaft 33.
Arm point pulley mechanism 1 described in the present embodiment comprises pulley yoke 12, arm point pulley 11, hanger 13 and arm-tie 14.Concrete, this pulley yoke 12 is the symmetrical truss structure of a shape of falling A, and its small end is head, with the large end of branch, is afterbody.At the head of pulley yoke 12, be provided with the adapter plate 112 at sheave shaft 111 and sheave shaft 111 two ends, arm point pulley 11 is just arranged on the head of pulley yoke 12 by sheave shaft 111 and adapter plate 112, in the end of the Liang Ge branch of pulley yoke 12 afterbodys, distribute be provided with the two ends corresponding matching of the wheel shaft 33 that glides connect fork 121, this connects fork 121 and is greater than the prong like of downslide wheel shaft 33 diameters for opening, in this prong like, be provided with the pin-and-hole corresponding with auxiliary mounting hole 331, connecing fork 121 is connected with downslide wheel shaft 33 by running through the bearing pin 122 of pin-and-hole and auxiliary mounting hole 331, this connection mode both can prevent pulley yoke 12 hypsokinesis, the bearing pin 122 of the side of also can dismantling, arm point pulley mechanism 1 is folded in to a side of principal arm 2.This connects fork bottom of 121 and is directly against on downslide wheel shaft 33, and when 1 work of arm point pulley mechanism, this bearing pin 122 does not stress yet, so this bearing pin 122 can be free-running fit with coordinating of pin-and-hole, auxiliary mounting hole 331, so that Assembly &Disassembly.Generally, this auxiliary mounting hole 331 is vertically to arrange, so this bearing pin 122 and pin-and-hole be also vertical direction setting, but in order to lift needs, the angle of the line of this pin-and-hole and pulley yoke 12 main bodys is not less than 90 degree conventionally.
This hanger 13 is rotating to be connected on pulley yoke 12, between the center of gravity and afterbody of its particular location in sharp pulley mechanism, therefore, when slinging pulley yoke 12 by hanger 13, connect fork 121 parts and just can stick up, be convenient to make to connect the two ends that fork 121 buckles into downslide wheel shaft 33.The upper end of this hanger 13 is supine tubular structure 131 at the bottom of being provided with one, sidewall and bottom surface at tubular structure 131 are provided with the breach 132 corresponding with steel rope 4 diameters of elevator, when connecting steel wire ropes 4 and hanger 13, steel rope 4 can be filled in to described breach 132, make the fag end 41 of steel rope 4 snap in tubular structure 131, so just can connect fast and separated steel rope 4 and hanger 13.Because hanger 13 is to be rotatably connected with pulley yoke 12, in order to prevent hanger 13 left and right plaies, can also positioning baffle be set on the both sides of hanger 13 installation places, so that the lifting of pulley yoke 12 is more steady.
This arm-tie 14 is provided with identical two groups, one end of these two groups of arm-ties 14 is hinged on respectively on two described adapter plates 112, the other end is articulated on top sheave axle 34 and is positioned at the both sides of arm head top sheave 31 by linking up with 144, for guaranteeing the reliability of arm-tie 14, hitching position at hook 144, axle sleeve with step location can also be set, to prevent from linking up with 144 left and right plaies.Every group of arm-tie 14 all comprises three joints, and for the ease of folding, the length of second section plate 142 is less than the length of first segment plate 141 and the 3rd joint plate 143.Because arm-tie 14 is divided into two groups and be connected with top sheave axle 34 with adapter plate 112 respectively, so have enough spaces to allow steel rope 4 be connected with hanger 13 between these two groups of arm-ties 14 or separated, when lifting pulley frame 12, steel rope 4 can not interfered with arm-tie 14 yet, does not affect connection and the dismounting of arm-tie 14.
In other embodiments, this pulley yoke 12 can also be box-structure; This hanger 13 can also hang holder for suspension ring or suspension hook etc.; This arm-tie 14 can also for cable wire such flexibly connect or pipe link is such is rigidly connected; The joint number of this arm-tie 14 is also not limited to three joints, can be two joints more piece even more; In order to make arm point pulley yoke 12 adjustable with respect to the angle of principal arm 2, the length of arm-tie 14 can be set to adjustable, as regulated length by increasing or reduce the joint number of arm-tie 14, or a plurality of mounting holes are set on arm-tie 14, so that it is adjustable to link up with 144 position, corresponding, connect pin-and-hole on fork 121 and be also provided with different many groups of angle; According to the difference of operating mode, connect fork 121 bottoms and the mode of downslide wheel shaft 33 contacts and also can replace with and connect that fork 121 bottoms do not contact downslide wheel shaft 33 and direct by pin-and-hole and the stressed mode of bearing pin 122.
Arm point pulley mechanism 1 described in the present embodiment, because being provided with connecing of connecting corresponding to wheel shaft 33 two ends that glide, pitch 121, and the position of its hanger 13 is arranged between the center of gravity and afterbody of arm point pulley mechanism 1, therefore, when slinging this arm point pulley mechanism 1 by the hoisting rope 4 of hoisting crane self, connecing fork 121 positions is upturned, by hoisting of elevator, can make to connect fork 121 two ends of automatically tipping lower sheave axle 33 in, and then realize arm point pulley mechanism 1 from dismounting, and then by arm-tie 14, the angle of arm point pulley mechanism is fixed.
To get off, in conjunction with Figure 12 and Figure 13, illustrate the step from assembly and disassembly methods of above-mentioned arm point pulley mechanism 1:
During practical application, 121 approach in the process of downslide wheel shaft 33 connecing fork, also can connect by the width adjustment of rising and falling of fine motion hoisting crane fork 121 opening towards, and with manually pulling gently guiding through a guide rope, so that connect, pitch 121 and more easily tip downslide wheel shaft 33 in.
Install after arm point pulley mechanism 1, hoisting rope 4, through arm head top sheave 31 and arm point pulley 11, connects rope and carves, and suspension hook is installed, and can hang the work of carrying.
Unloading process and the step of arm point pulley mechanism 1 are contrary with above-mentioned installation process.
Except above-mentioned arm point pulley mechanism 1, the embodiment of the present invention also provides a kind of hoisting crane that is provided with above-mentioned arm point pulley mechanism 1, and the structure of other each several part of this hoisting crane, with reference to prior art, repeats no more 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 (14)
1. arm point pulley mechanism, be arranged on the arm head (3) of hoisting crane, described arm head (3) comprises arm head top sheave (31), arm head lower sheave (32), top sheave axle (34), downslide wheel shaft (33) and the auxiliary mounting hole (331) that is arranged on downslide wheel shaft (33) two ends, it is characterized in that, described arm point pulley mechanism (1) comprises pulley yoke (12), arm point pulley (11), hang holder and attaching parts, the rotating head that is arranged on described pulley yoke (12) of described arm point pulley (11), the afterbody of described pulley yoke (12) is provided with and connects fork (121), the described two ends corresponding matching that connects fork (121) and described downslide wheel shaft (33), the described holder of hanging is arranged on described pulley yoke (12), and described in hang holder the center of gravity and the afterbody of described pulley yoke (12) of position in described arm point pulley mechanism (1) between, described attaching parts one end is connected to the head of described pulley yoke (12), other end detouchable is connected on described top sheave axle (34).
2. arm point pulley mechanism according to claim 1, is characterized in that, described pulley yoke (12) is the truss structure of the shape of falling A or box-structure.
3. arm point pulley mechanism according to claim 2, is characterized in that, described attaching parts is cable wire, arm-tie (14) or pipe link.
4. arm point pulley mechanism according to claim 3, is characterized in that, described arm point pulley (11) is arranged on the head of described pulley yoke (12) by the adapter plate (112) of sheave shaft (111) and both sides; Described arm-tie (14) is provided with identical two groups, and to be hinged on respectively described two adapter plates (112) upper in one end of described two groups of arm-ties (14), and the other end is articulated on described top sheave axle (34).
5. arm point pulley mechanism according to claim 4, is characterized in that, described arm-tie (14) at least comprises detouchable two joints.
6. arm point pulley mechanism according to claim 5, is characterized in that, described arm-tie (14) comprises three joints, and the length of second section plate (142) is less than the length of first segment plate (141) and the 3rd joint plate (143).
7. according to the arm point pulley mechanism described in claim 1 to 6 any one, it is characterized in that, described in hang holder for connecting hanger (13), suspension hook or the suspension ring of the steel rope (4) of elevator.
8. arm according to claim 7 point pulley mechanism, it is characterized in that, described hanger (13) is rotating to be connected on described pulley yoke (12), supine tubular structure (131) at the bottom of the upper end of described hanger (13) is provided with one, sidewall and bottom surface at described tubular structure (131) are provided with the breach (132) corresponding with steel rope (4) diameter of elevator, and described steel rope (4) is formed and removably connects with described hanger (13) by described breach (132).
9. arm according to claim 7 point pulley mechanism, it is characterized in that, the described prong like that connects fork (121) described downslide wheel shaft (33) diameter for opening is greater than, in described prong like, be provided with the pin-and-hole corresponding with described auxiliary mounting hole (331), described in connect fork (121) and form and be rotatably connected with described downslide wheel shaft (33) by the bearing pin (122) that runs through described pin-and-hole and auxiliary mounting hole (331).
10. arm according to claim 9 point pulley mechanism, is characterized in that, described bearing pin (122) is vertical direction setting, described in connect the line of the pin-and-hole on fork (121) and the angle of described pulley yoke (12) is not less than 90 °.
11. arm according to claim 10 point pulley mechanisms, is characterized in that, described in connect on fork (121) and be provided with the pin-and-holes of organizing more, each angle of organizing pin-and-hole and described pulley yoke (12) is different.
12. 1 kinds of arms point pulley mechanisms from assembly and disassembly methods, it is characterized in that, described arm point pulley mechanism be the sharp pulley mechanism (1) of arm as described in any one in the claims 1-11, it comprises the following steps from assembly and disassembly methods:
Step 1, the rope gear of the arm head lower sheave (32) of the hoisting crane of dismantling, hangs the steel rope of elevator (4) in holder through arm head top sheave (31) and described in being connected to;
Step 2, by the elevator described pulley yoke (12) of slinging, connects the two ends that fork (121) is tipped described downslide wheel shaft (33) in described in making;
Step 3, the described steel rope (4) that continues to hoist, makes described pulley yoke (12) turn to predeterminated position around described downslide wheel shaft (33), then attaching parts is connected on described top sheave axle (34);
Step 4, the described steel rope (4) that comes loose, makes described steel rope (4) separated with the described holder of hanging, and it is hinged by bearing pin (122) and described auxiliary mounting hole (331) described in inciting somebody to action, to connect fork (121).
13. arm according to claim 12 point pulley mechanisms from assembly and disassembly methods, it is characterized in that, in described step 2, described, connect in the process that fork (121) approaches described downslide wheel shaft (33), also can by fine motion hoisting crane rise and fall width and/or by pull the opening that connects fork (121) described in the guide rope adjustment being connected on described pulley yoke (12) towards step.
14. 1 kinds of hoisting cranes, is characterized in that, described hoisting crane is provided with the arm point pulley mechanism (1) as described in claim 1 to 11 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310629605.2A CN103601084B (en) | 2013-11-29 | 2013-11-29 | Arm point pulley mechanism, arm point pulley mechanism from assembly and disassembly methods and hoisting crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310629605.2A CN103601084B (en) | 2013-11-29 | 2013-11-29 | Arm point pulley mechanism, arm point pulley mechanism from assembly and disassembly methods and hoisting crane |
Publications (2)
| Publication Number | Publication Date |
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| CN103601084A true CN103601084A (en) | 2014-02-26 |
| CN103601084B CN103601084B (en) | 2015-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310629605.2A Active CN103601084B (en) | 2013-11-29 | 2013-11-29 | Arm point pulley mechanism, arm point pulley mechanism from assembly and disassembly methods and hoisting crane |
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| CN (1) | CN103601084B (en) |
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| CN103303817A (en) * | 2013-07-02 | 2013-09-18 | 徐工集团工程机械股份有限公司 | Hoisting mechanism and dynamic compactor |
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| US20050011850A1 (en) * | 2003-05-13 | 2005-01-20 | Jan Hinrichs | Folding pinnacle bending device |
| CN1621334A (en) * | 2003-05-13 | 2005-06-01 | 美国格若沃责任有限公司 | Folding pinnacle bending device |
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| Publication number | Publication date |
|---|---|
| CN103601084B (en) | 2015-08-12 |
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