CN103601084B - Arm point pulley mechanism, arm point pulley mechanism from assembly and disassembly methods and hoisting crane - Google Patents
Arm point pulley mechanism, arm point pulley mechanism from assembly and disassembly methods and hoisting crane Download PDFInfo
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- CN103601084B CN103601084B CN201310629605.2A CN201310629605A CN103601084B CN 103601084 B CN103601084 B CN 103601084B CN 201310629605 A CN201310629605 A CN 201310629605A CN 103601084 B CN103601084 B CN 103601084B
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Abstract
The invention provides a kind of arm point pulley mechanism, arm point pulley mechanism from assembly and disassembly methods and hoisting crane, this arm point pulley mechanism is arranged on the arm head of hoisting crane, comprise pulley yoke, arm point pulley, hang holder and attaching parts, the rotating head being arranged on pulley yoke of arm point pulley, the afterbody of pulley yoke be provided with respectively with the two ends corresponding matching of downslide wheel shaft connect fork, hanging holder is arranged on pulley yoke, and the position of hanging holder is between the arm point center of gravity of pulley mechanism and the afterbody of pulley yoke, attaching parts one end is connected to the head of pulley yoke, other end detouchable is connected on top sheave axle.Arm of the present invention point pulley mechanism by the hoisting rope of hoisting crane self sling this arm point pulley mechanism time, connect fork position to be upturned, hoisting by elevator, can make to connect the two ends that lower sheave axle tipped automatically in by fork, and then realize arm point pulley mechanism from dismounting, and then by attaching parts by arm point pulley mechanism angle fix.
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 all be directly installed on principal arm arm head substantially, generally can realize rotating folding and unfolding to principal arm arm head side around side bearing pin, but this arm point pulley mechanism can not realize from dismounting usually, and the special mounting structure of arm point pulley and position also must be set on principal arm arm head.There is a kind of arm point pulley mechanism in addition, arm point pulley yoke has set up an auxiliary scaffold, and a Ge Guo rope sheave mechanism is set on this auxiliary scaffold, by hoisting crane self hoisting rope sling arm head or arm point pulley, but also need to increase in arm head front end install connect entry, corresponding with this arm point pulley mechanism.When hoister in large tonnage needs to consider the factors such as total weight, parameter size, structural requirement and client need time, can not from dismounting if can only fold, or can only by increase supplementary structure realize arm point pulley from dismounting, all can not meet the quick from the requirement such as dismounting and collapsed transportable of arm point pulley, and too increase 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, realize the quick from the requirement such as dismounting and collapsed transportable of arm point pulley mechanism to solve.
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 be arranged on the auxiliary mounting hole at downslide wheel shaft two ends, described arm point pulley mechanism comprises pulley yoke, arm point pulley, hang holder and attaching parts, the rotating head being 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 connecing fork and described downslide wheel shaft, described holder of hanging is arranged on described pulley yoke, and described in hang holder the position center of gravity that is in described arm point pulley mechanism and the afterbody of described pulley yoke between, 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 truss structure or the box-structure of the shape of falling A.
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 two described adapter plates respectively, and the other end is articulated on described top sheave axle.
Further, described arm-tie at least comprises detouchable two joint.
Further, described arm-tie comprises three joints, and the length of second section plate is less than the length of first segment plate and Section of three plate.
Further, hanger, suspension hook or suspension ring that holder is the steel rope that can connect elevator are hung described in.
Further, described hanger is rotating to be connected on described pulley yoke, supine tubular structure at the bottom of one is provided with in the upper end of described hanger, be provided with the breach corresponding with the wirerope diameter of elevator at the sidewall of described tubular structure and bottom surface, described steel rope consists of described breach and described hanger and removably connects.
Further, describedly connect fork for opening and be greater than the prong like of described lower sheave shaft diameter, described prong like is provided with the pin-and-hole corresponding with described auxiliary mounting hole, described in connect fork and to be formed by the bearing pin and described downslide wheel shaft running through described pin-and-hole and auxiliary mounting hole and be rotatably connected.
Further, described bearing pin is that vertical direction is arranged, described in connect the pin-and-hole on fork the angle of line and described pulley yoke be not less than 90 °.
Further, described in connect fork is provided with and organize pin-and-hole more, the angle of each group 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 as above point pulley mechanism, and it comprises the following steps from assembly and disassembly methods:
Step one, the rope gear of the arm head lower sheave of hoisting crane of dismantling, hangs in holder by the steel wire penetrating arm head top sheave of elevator described in being connected to;
Step 2, to be sling described pulley yoke by elevator, connects the two ends that described downslide wheel shaft tipped in by fork described in making;
Step 3, continues the described steel rope that hoists, and makes described pulley yoke turn to predeterminated position around described downslide wheel shaft, then is connected to by attaching parts on described top sheave axle;
Step 4, come loose described steel rope, and described steel rope is separated with described holder of hanging, and by described connect fork by bearing pin and described auxiliary mounting hole hinged.
Further, in described step 2, connect in the process of the nearly described downslide wheel shaft of fork-join described, 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 that is connected on described pulley yoke towards step.
Further, when described to hang holder be described hanger time, the fag end of described steel rope can be connected or quick separating with described hanger fast by the breach on described hanger.
Again on the one hand, the invention also discloses a kind of hoisting crane, described hoisting crane is provided with arm as above point pulley mechanism.
Relative to prior art, the present invention has following advantage:
Arm point pulley mechanism of the present invention, because of be provided with corresponding with the wheel shaft two ends that glide connect connect fork, and its position of hanging holder is arranged between the arm point center of gravity of pulley mechanism and afterbody, therefore, by the hoisting rope of hoisting crane self sling this arm point pulley mechanism time, connect fork position to be upturned, hoisting by elevator, can make to connect the two ends that lower sheave axle tipped automatically in by fork, and then realize arm point pulley mechanism from dismounting, and then by attaching parts by arm point pulley mechanism angle fix.
The advantage had 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 forming 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, 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 for hanger shown in Fig. 4 be separated with steel rope after birds-eye view;
Fig. 7 is the front view described in the lifting embodiment of the present invention during arm point pulley mechanism;
Fig. 8 is the left view of Fig. 7;
Fig. 9 is for connecing lateral plan when fork has just buckled into downslide wheel shaft two ends in arm point pulley mechanism process described in the lifting embodiment of the present invention;
Figure 10 for described in Fig. 9 state to continue to hoist the succeeding state of crane hoisting;
Figure 11 is for arm point pulley mechanism rigging out described in the embodiment of the present invention and drawing is buckled the lateral plan of top sheave axle;
Figure 12 is the FB(flow block) from assembly and disassembly methods described in the embodiment of the present invention;
Figure 13 is concrete means schematic diagram that described in the embodiment of the present invention, step 2 is taked in assembly and disassembly methods.
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-Section of three plate, 144-links up with,
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.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
Relevant drawings see Fig. 1 to Figure 11 is known, described in the present embodiment arm point pulley mechanism 1 be with the arm head 3 of main arm of crane 2 with the use of device, 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 the auxiliary mounting hole 331 for connecting 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 the shape of falling A, and its small end is head, and the large end with branch is afterbody.The adapter plate 112 at sheave shaft 111 and sheave shaft 111 two ends is provided with at the head of pulley yoke 12, arm point pulley 11 is just arranged on the head of pulley yoke 12 by sheave shaft 111 and adapter plate 112, the end portion cloth of the Liang Ge branch of pulley yoke 12 afterbody be provided with the two ends corresponding matching of the wheel shaft 33 that glides connect fork 121, this connects fork 121 for opening and is greater than the prong like of downslide wheel shaft 33 diameter, this prong like is provided with the pin-and-hole corresponding with auxiliary mounting hole 331, connect fork 121 to be connected with downslide wheel shaft 33 with the bearing pin 122 of auxiliary mounting hole 331 by running through pin-and-hole, this connection mode both can prevent pulley yoke 12 hypsokinesis, also can to dismantle the bearing pin 122 of side, arm point pulley mechanism 1 is folded in the side of principal arm 2.This bottom connecing fork 121 is directly against on downslide wheel shaft 33, and when arm point pulley mechanism 1 works, this bearing pin 122 does not stress yet, and therefore this bearing pin 122 can be free-running fit with pin-and-hole, coordinating of auxiliary mounting hole 331, so that Assembly &Disassembly.Under normal circumstances, this auxiliary mounting hole 331 is vertically arrange, and therefore this bearing pin 122 and pin-and-hole are also for vertical direction is arranged, but in order to lift needs, the line of this pin-and-hole and the angle of pulley yoke 12 main body are not less than 90 degree usually.
This hanger 13 is rotating to be connected on pulley yoke 12, between the center of gravity that its particular location is in sharp pulley mechanism and afterbody, therefore, when sling by hanger 13 pulley yoke 12 time, connect fork 121 part 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 provided with supine tubular structure 131 at the bottom of, the breach 132 corresponding with steel rope 4 diameter of elevator is provided with at the sidewall of tubular structure 131 and bottom surface, when connecting steel wire ropes 4 and hanger 13, steel rope 4 can be filled in described breach 132, make the fag end 41 of steel rope 4 snap in tubular structure 131, so just can connect fast and be separated steel rope 4 and hanger 13.Because hanger 13 and pulley yoke 12 are rotatably connected, in order to prevent hanger about 13 play, positioning baffle can also be set on the both sides of hanger 13 installation place, to make the lifting of pulley yoke 12 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 two described adapter plates 112 respectively, the other end to be articulated on top sheave axle 34 by hook 144 and to be positioned at the both sides of arm head top sheave 31, for guaranteeing the reliability of arm-tie 14, at the hitching position of hook 144, the axle sleeve of band step location can also be set, to prevent hook about 144 play.Often organize arm-tie 14 and all comprise three joints, for the ease of folding, the length of second section plate 142 is less than the length of first segment plate 141 and Section of three plate 143.Be divided into two groups because of arm-tie 14 and be connected with adapter plate 112 and top sheave axle 34 respectively, so there are enough spaces to allow steel rope 4 connect with hanger 13 or to be separated between these two groups of arm-ties 14, when lifting pulley frame 12, steel rope 4 also can not be interfered with arm-tie 14, 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 even more more piece; In order to make arm point pulley yoke 12 adjustable relative to the angle of principal arm 2, the length of arm-tie 14 can be set to adjustable, as the joint number by increasing or reduce arm-tie 14 regulates length, or on arm-tie 14, multiple mounting hole is set, to make the position of hook 144 adjustable, corresponding, the pin-and-hole connect on fork 121 is also provided with different many groups of angle; According to the difference of operating mode, connect also can to replace with the mode of downslide wheel shaft 33 contact bottom fork 121 to connect and not contact downslide wheel shaft 33 bottom fork 121 and directly by pin-and-hole and the stressed mode of bearing pin 122.
Arm point pulley mechanism 1 described in the present embodiment, because of be provided with corresponding with wheel shaft 33 two ends that glide connect connect fork 121, and the position of its hanger 13 is arranged between the arm point center of gravity of pulley mechanism 1 and afterbody, therefore, by the hoisting rope 4 of hoisting crane self sling this arm point pulley mechanism 1 time, connect fork 121 position to be upturned, hoisting by elevator, can make to connect the two ends that lower sheave axle 33 tipped automatically in by fork 121, and then realize arm point pulley mechanism 1 from dismounting, and then by arm-tie 14 by arm point pulley mechanism angle fix.
Below carry out the step from assembly and disassembly methods illustrating said arm point pulley mechanism 1 in conjunction with Figure 12 and Figure 13:
Step one, the rope gear of the arm head lower sheave 32 of hoisting crane of dismantling, by the steel rope 4 of elevator through arm head top sheave 31, and snaps onto fag end 41 on hanger 13.
Step 2, to be sling pulley yoke 12 by elevator, as shown in Figure 8, now, because hanger 13 is between the center of gravity and afterbody of pulley yoke 12, so connect, fork 121 is almost vertical to be upwarped.Continue hoist rope 4, make to connect the two ends that downslide wheel shaft 33 tipped in by fork 121; Continue hoist rope 4, arm point pulley mechanism 1 moves, and the opening connecing fork 121 can encounter the auxiliary installation site at downslide wheel shaft 33 two ends, when continuing hoist rope 4 again, connect fork 121 opening and can automatically tip lower sheave axle 33 in, realize connecing fork 121 and install with aliging of downslide wheel shaft 33, as shown in Figure 9.
During practical application, connecing in the process of fork 121 close to downslide wheel shaft 33, the opening also connecing fork 121 by the width adjustment of rising and falling of fine motion hoisting crane towards, and with manually pulling guiding gently through a guide rope, more easily tip downslide wheel shaft 33 in make connecing fork 121.
Step 3, continues hoist rope 4, pulley yoke 12 is rotated around downslide wheel shaft 33, as shown in Figure 10, until pulley yoke 12 turns to predeterminated position, then is articulated on top sheave axle 34 by arm-tie 14, as shown in figure 11.
Step 4, come loose steel rope 4, makes steel rope 4 and hang holder and be separated, and it is hinged by bearing pin 122 and auxiliary mounting hole 331 to connect fork 121.
After installing arm point pulley mechanism 1, hoisting rope 4, through arm head top sheave 31 and arm point pulley 11, connects rope and carves, install suspension hook, can carry out hanging 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 being provided with said arm point pulley mechanism 1, and the structural reference prior art of other each several part of this hoisting crane, repeats no more herein.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. an 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 be arranged on the auxiliary mounting hole (331) at 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, described arm point pulley (11) the rotating head being arranged on described pulley yoke (12), the afterbody of described pulley yoke (12) is provided with and connects fork (121), the described two ends corresponding matching connecing fork (121) and described downslide wheel shaft (33), described holder of hanging is arranged on described pulley yoke (12), and described in hang holder the position center of gravity that is in described arm point pulley mechanism (1) and the afterbody of described pulley yoke (12) 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), describedly hang the hanger (13) that holder is the steel rope (4) that can connect elevator, described hanger (13) is rotating to be connected on described pulley yoke (12), supine tubular structure (131) at the bottom of one is provided with in the upper end of described hanger (13), the breach (132) corresponding with the steel rope of elevator (4) diameter is provided with at the sidewall of described tubular structure (131) and bottom surface, described steel rope (4) consists of described breach (132) and described hanger (13) and removably connects.
2. arm point pulley mechanism according to claim 1, it is characterized in that, described pulley yoke (12) is truss structure or the box-structure of the shape of falling A.
3. arm point pulley mechanism according to claim 2, it is characterized in that, described attaching parts is cable wire, arm-tie (14) or pipe link.
4. arm according to claim 3 point pulley mechanism, 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 one end of described two groups of arm-ties (14) is hinged on two described adapter plates (112) respectively, and the other end is articulated on described top sheave axle (34).
5. arm point pulley mechanism according to claim 4, it is characterized in that, described arm-tie (14) at least comprises detouchable two joint.
6. arm point pulley mechanism according to claim 5, it 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 Section of three plate (143).
7. arm point pulley mechanism according to claim 1, it is characterized in that, the described prong like connecing fork (121) described downslide wheel shaft (33) diameter for opening is greater than, described prong like is provided with the pin-and-hole corresponding with described auxiliary mounting hole (331), described in connect fork (121) and to be formed with described downslide wheel shaft (33) by the bearing pin (122) that runs through described pin-and-hole and auxiliary mounting hole (331) and be rotatably connected.
8. arm point pulley mechanism according to claim 7, it is characterized in that, described bearing pin (122) is that vertical direction is arranged, described in connect the pin-and-hole on fork (121) the angle of line and described pulley yoke (12) be not less than 90 °.
9. arm according to claim 8 point pulley mechanism, is characterized in that, described in connect fork (121) is provided with and organize pin-and-hole more, the angle respectively organizing pin-and-hole and described pulley yoke (12) is different.
10. arm point pulley mechanism from an assembly and disassembly methods, it is characterized in that, described arm point pulley mechanism is arm point pulley mechanism (1) such as according to any one of the claims 1-9, and it comprises the following steps from assembly and disassembly methods:
Step one, the rope gear of the arm head lower sheave (32) of hoisting crane of dismantling, hangs holder in through arm head top sheave (31) described in being connected to by the steel rope (4) of elevator;
Step 2, to be sling described pulley yoke (12) by elevator, connects the two ends that described downslide wheel shaft (33) tipped in by fork (121) described in making;
Step 3, continues the described steel rope (4) that hoists, and makes described pulley yoke (12) turn to predeterminated position around described downslide wheel shaft (33), then is connected to by attaching parts on described top sheave axle (34);
Step 4, come loose described steel rope (4), and described steel rope (4) is separated with described holder of hanging, and to connect fork (121) hinged by bearing pin (122) and described auxiliary mounting hole (331) by described.
11. arm according to claim 10 point pulley mechanisms from assembly and disassembly methods, it is characterized in that, in described step 2, connect in the process of fork (121) close to described downslide wheel shaft (33) described, also 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 that is connected on described pulley yoke (12) towards step.
12. 1 kinds of hoisting cranes, is characterized in that, described hoisting crane is provided with arm point pulley mechanism (1) as described in claim 1 to 9 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 CN103601084A (en) | 2014-02-26 |
| CN103601084B true 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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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10321493B4 (en) * | 2003-05-13 | 2006-07-20 | Grove U.S. Llc | Folding pinnacle bending |
| CN201793335U (en) * | 2010-08-02 | 2011-04-13 | 浙江省建设机械集团有限公司 | Device with detachable arm end |
| CN201882821U (en) * | 2010-11-17 | 2011-06-29 | 徐州重型机械有限公司 | Rapidly installed and detached independent arm head |
| CN202322108U (en) * | 2011-11-04 | 2012-07-11 | 徐州重型机械有限公司 | Arm head of crane truss arm and crane |
| CN102718156B (en) * | 2012-06-29 | 2014-05-21 | 三一重工股份有限公司 | Crane arm support system and crane |
| CN202744226U (en) * | 2012-08-06 | 2013-02-20 | 四川省第三建筑工程公司 | Hoisting tri-magnification rope winding olecranon-shaped arm head of moving arm tower crane |
| CN202808220U (en) * | 2012-09-25 | 2013-03-20 | 中联重科股份有限公司 | Automatic gooseneck boom frame handling device and crane with same |
| CN203006798U (en) * | 2012-12-31 | 2013-06-19 | 中联重科股份有限公司 | Onboard goose head frame device of crane and crane |
| CN103303817B (en) * | 2013-07-02 | 2015-04-29 | 徐工集团工程机械股份有限公司 | Hoisting mechanism and dynamic compactor |
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2013
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