CN205346677U - Lifting apparatus - Google Patents
Lifting apparatus Download PDFInfo
- Publication number
- CN205346677U CN205346677U CN201620021453.7U CN201620021453U CN205346677U CN 205346677 U CN205346677 U CN 205346677U CN 201620021453 U CN201620021453 U CN 201620021453U CN 205346677 U CN205346677 U CN 205346677U
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- crane
- crane gear
- counter weight
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Abstract
The utility model discloses a lifting apparatus. Lifting apparatus includes platform, jib loading boom, mast and counter weight device, the jib loading boom with the mast set up in on the platform, the mast with the jib loading boom is connected, the counter weight device is including hanging the counter weight, hang the counter weight hang in on the mast. Compare with the lifting apparatus among the prior art, the utility model discloses counter weight device among the technical scheme is established to hanging the counter weight, hangs the counter weight and makes the focus of counter weight device move backward to the increase of lifting apparatus's load moment consequently under the condition of limited working area, has promoted lifting apparatus's jack -up performance.
Description
Technical field
This utility model relates to engineering machinery field, particularly to a kind of crane gear.
Background technology
Along with the fast development that international energy and weight chemical engineering are built, in engineering construction, modularity, maximization and integration lifting requirements improve constantly, simultaneously by the restriction of construction site work area, crane facility lifting capacity and hoisting moment and equipment hoisting pattern are had higher requirement.
As shown in Figure 1, crane gear of the prior art includes platform 11, crane arm 12, mast 13, mast 14 and counter weight device 15, crane arm 12 and platform 11 are articulated with the first hinge 111, wherein, counter weight device 15 is fixing on platform 11, the change of its hoisting moment requires over the diameter adjusting circular orbit 19 and realizes, the work area being available for crane gear construction that whole transformation process is extremely complex and provides in hoisting engineering is more and more limited, then under the restriction by crane gear work area, the elevating capacity of crane gear of the prior art is limited.
Utility model content
The purpose of this utility model is in that to provide a kind of crane gear, to solve the crane gear of the prior art problem that elevating capacity is limited under limited work area.
This utility model provides a kind of crane gear, is arranged on platform including platform, crane arm, mast and counter weight device, crane arm and mast, and mast is connected with crane arm, and counter weight device includes suspended counterweight, and suspended counterweight hangs on mast.
Further, suspended counterweight is positioned at the outside of platform.
Further, crane gear also includes suspended counterweight connecting device, and suspended counterweight is connected with mast by suspended counterweight connecting device.
Further, suspended counterweight connecting device includes balancing disk attachment structure and balancing disk, the top of balancing disk attachment structure is connected with the top of mast, and the bottom of balancing disk attachment structure is connected with balancing disk so that balancing disk hangs on mast, and suspended counterweight is placed on balancing disk.
Further, balancing disk attachment structure is vertical with platform.
Further, balancing disk attachment structure includes hanging arm-tie, and the top hanging arm-tie is connected with mast, and the bottom hanging arm-tie is connected with balancing disk.
Further, counter weight device also includes platform counterweight, and platform counterweight is located on platform.
Further, crane gear also includes mast, and the bottom of the bottom of crane arm, the bottom of mast and mast is all hinged with platform, and the top of mast is hinged with the top of mast, and mast is arranged relative to platform inclination.
Further, crane gear also includes crane arm attachment structure, and the top of mast is connected with the top of crane arm by crane arm attachment structure.
Further, crane gear also includes load dividing dolly and circular orbit, and platform is arranged on load dividing dolly, and load dividing dolly can rotate on circular orbit, and suspended counterweight is positioned at the radial outside of circular orbit.
Based on the crane gear that this utility model provides, being arranged on platform including platform, crane arm, mast and counter weight device, crane arm and mast, mast is connected with crane arm, and counter weight device includes suspended counterweight, and suspended counterweight hangs on mast.Compared with being fixedly installed on platform with counter weight device of the prior art, move after the center of gravity of the suspended counterweight of counter weight device of the present utility model, the hoisting moment making whole crane gear increases, thus when limited work area, improving the lifting performance of crane gear.
By referring to the accompanying drawing detailed description to exemplary embodiment of the present utility model, further feature of the present utility model and advantage thereof will be made apparent from.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by of the present utility model, constitutes the part of the application, and schematic description and description of the present utility model is used for explaining this utility model, is not intended that improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of the crane gear of prior art；
Fig. 2 is the principle of moment balance schematic diagram of the crane gear shown in Fig. 1；
Fig. 3 is the structural representation of the crane gear of this utility model embodiment；
Fig. 4 is the fragmentary top TV structure schematic diagram of the crane gear shown in Fig. 3；
Fig. 5 is the principle of moment balance schematic diagram of the crane gear shown in Fig. 3；
Fig. 6 is the plan structure schematic diagram that the crane gear shown in Fig. 3 allows rotational angle.
Each accompanying drawing labelling represents respectively:
11-platform；111-the first hinge；12-crane arm；13-mast；14-mast；15-counter weight device；21-platform；211-the first hinge；212-the second hinge；22-crane arm；23-mast；24-mast；25-counter weight device；251-platform counterweight；252-suspended counterweight；252A-balancing disk attachment structure；252B-balancing disk；26-crane arm attachment structure；261-luffing arm-tie；262-variable-amplitude steel wire rope；263-pulley gear；264-luffing winding plant；27-dynamical system；28-load dividing dolly；29-circular orbit；30-subgrade case.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole embodiments.Description only actually at least one exemplary embodiment is illustrative below, never as any restriction to this utility model and application or use.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection.
Unless specifically stated otherwise, the parts otherwise set forth in these embodiments and positioned opposite, the numerical expression of step and numerical value are not intended to scope of the present utility model.Simultaneously, it should be appreciated that for the ease of describing, the size of the various piece shown in accompanying drawing is not draw according to actual proportionate relationship.The known technology of person of ordinary skill in the relevant, method and apparatus are likely to be not discussed in detail, but in the appropriate case, technology, method and apparatus should be considered to authorize a part for description.Shown here with in all examples discussed, any occurrence should be construed as merely exemplary, not as restriction.Therefore, other example of exemplary embodiment can have different values.It should also be noted that similar label and letter below figure represent similar terms, therefore, once a certain Xiang Yi accompanying drawing is defined, then it need not be further discussed in accompanying drawing subsequently.
For the ease of describing, here can use space relative terms, as " ... on ", " in ... top ", " at ... upper surface ", " above " etc., be used for describing the spatial relation of a device or feature and other devices or feature as shown in the figure.It should be appreciated that space relative terms is intended to the different azimuth in use or operation comprised except the orientation that device is described in the drawings.Such as, " in other devices or structure lower section " or " under other devices or structure " will be positioned as after if the device in accompanying drawing is squeezed, being then described as the device of " above other devices or structure " or " on other devices or structure ".Thus, exemplary term " in ... top " can include " in ... top " and " in ... lower section " two kinds of orientation.This device can also other different modes location (90-degree rotation or be in other orientation), and space used herein above described relatively make respective explanations.
In the following description, alleged " front " refers to the side of boom hoist weight；" afterwards " refers to the side relative with " front ".
As shown in Figure 3, the crane gear of this utility model embodiment includes platform 21, crane arm 22, mast 23 and counter weight device 25, crane arm 22 and mast 23 are arranged on platform 21, mast 23 is connected with crane arm 22, counter weight device 25 includes suspended counterweight 252, and suspended counterweight 252 hangs on mast 23.
Compared with being fixedly installed on platform with counter weight device of the prior art, counter weight device of the present utility model arranges suspended counterweight, moves after the center of gravity of counter weight device so that the hoisting moment of whole crane gear increases, thus when limited work area, improving the lifting performance of crane gear.
To be described in detail from Fig. 3 to Fig. 6 to this utility model preferred embodiment below.
In the present embodiment, as it is shown on figure 3, suspended counterweight 252 is located at the rear side of platform 21.
Preferably, crane gear also includes suspended counterweight connecting device, and suspended counterweight 252 is connected with mast 23 by suspended counterweight connecting device.
Specifically, as it is shown on figure 3, suspended counterweight connecting device includes balancing disk attachment structure 252A and balancing disk 252B.Suspended counterweight 252 is placed on balancing disk 252B.The top of balancing disk attachment structure 252A is connected with the top of mast 23, and the bottom of balancing disk attachment structure 252A is connected with balancing disk 252B.Balancing disk 252B is connected with mast 23 by balancing disk attachment structure 252A so that the increase and decrease of suspended counterweight 252 is more convenient, easy accessibility, improves the transhipment convenience of crane gear.
In the present embodiment, balancing disk attachment structure 252A hangs arm-tie, and the top hanging arm-tie is connected with mast 23, and the bottom hanging arm-tie is connected with balancing disk 252B.
According further to Fig. 3 to Fig. 6, this utility model optimum embodiment is described in detail below.
As it is shown on figure 3, the crane gear of this utility model embodiment includes platform 21, crane arm 22, mast 23, mast 24, counter weight device 25 and crane arm attachment structure 26.The bottom of crane arm 22 is hinged with platform 21, and the bottom of mast 23 is hinged with platform 21, and the bottom of mast 24 is hinged from platform 21 and different with the articulated position of platform 21 with mast 23.Specifically, as it is shown on figure 3, the bottom of mast 23 and platform 21 are articulated with the first hinge 211, the bottom of mast 24 and platform 21 are articulated with the second hinge 212.The top of mast 23 is connected with the top of crane arm 22 by crane arm attachment structure 26.The top of mast 24 is hinged with the top of mast 23.Counter weight device 25 includes platform counterweight 251 and suspended counterweight 252, and platform counterweight 251 is located on platform, and suspended counterweight 252 is connected on mast 23 and is positioned at the rear of platform counterweight 251.
In the present embodiment, as it is shown on figure 3, the bottom of crane arm 22 and platform 21 are also articulated with the first hinge 211.
The reason below the crane gear lifting performance that this utility model embodiment is described from the principle of equalising torque promoted.
For comparative illustration, the equalising torque of crane gear of the prior art is first described, as shown in Figure 2.
The weight of counter weight device 15 is N, and the center of gravity of counter weight device 15 is K to the distance of the first hinge 1111, it is assumed that the weight hanging thing is G1, and hanging the center of gravity of thing to the distance of the first hinge 111 is L, then can draw formula (1) according to the principle of equalising torque: N × K1=G1×L。
Fig. 5 illustrates the principle of moment balance schematic diagram of the crane gear of this utility model embodiment.As it is shown in figure 5, the weight of platform counterweight 251 is N1, the weight of suspended counterweight 252 is N2, the center of gravity of platform counterweight 251 is K to the distance of the first hinge 2111, the center of gravity of suspended counterweight 252 is K to the distance of the first hinge 2112, the weight hanging thing is G2, hanging the center of gravity of thing to the distance of the first hinge 211 is L.Embodiment of the present utility model need not increase the weight of counter weight device 25, i.e. the weight of counter weight device 25 of this utility model embodiment and being equal in weight of counter weight device 15 of the prior art, i.e. the weight N of platform counterweight 2511Weight N with suspended counterweight 2522And the weight N that is counter weight device 15 of the prior art, formula (2) can be drawn: N=N1+N2。
As it is shown in figure 5, formula (3) can be drawn according to principle of moment balance: N1×K1+N2×K2=G2×L。
Formula (1), formula (2) and formula (3) contrast can be drawn: G2>G1, namely the crane gear of this utility model embodiment is when limited work area, it is not necessary to increasing the weight of counter weight device 25, lifting capacity is improved, thus improving lifting performance.
Additionally, the top of mast 23 is hinged with the top of mast 24, the bottom of mast 23 and platform 21 are articulated with the first hinge 211, the bottom of mast 24 and platform 21 are articulated with the second hinge 212, thus forming a stable triangular structure, support force is provided during for crane gear lift heavy, improves the stability of crane gear.
Preferably, balancing disk attachment structure 252A is vertical with platform 21.This arranges the vertical suspension making suspended counterweight 25 on the top of mast 23, improves the lifting performance of crane gear.
It addition, mast 24 is arranged relative to platform inclination, the horizontal range of the horizontal range of the bottom of the top of mast 24 and mast 23 bottom more than mast 24 and the bottom of mast 23.This setting is beneficial in limited space increases the arm of force of suspended counterweight 252, thus improving lifting performance.
In the present embodiment, as it is shown on figure 3, balancing disk attachment structure 252A is for hanging arm-tie.Balancing disk attachment structure 252A can also be stay cord or pull bar.
So that the crane gear of this utility model embodiment has luffing function, as it is shown on figure 3, crane arm attachment structure 26 includes luffing arm-tie 261, variable-amplitude steel wire rope 262, pulley gear 263 and luffing winding plant 264.Wherein, pulley gear 263 includes the first assembly pulley and the second assembly pulley.Luffing winding plant 264 is arranged on platform 21.First end of luffing arm-tie 261 is connected with the top of crane arm 22, second end of luffing arm-tie 261 and the first assembly pulley connect, mast 23 is connected with the second assembly pulley, first end of variable-amplitude steel wire rope 262 is connected with luffing winding plant 264, and the second end of variable-amplitude steel wire rope 262 walks around the first assembly pulley and the second assembly pulley is connected to the top of mast 23.
Platform 21 is additionally provided with dynamical system 27, dynamical system 27 for luffing winding plant 264 provide power and control luffing winding plant 264 elevator rotate thus controlling releasing and the withdrawal of variable-amplitude steel wire rope, and then control crane arm 22 luffing.
When crane gear needs luffing, dynamical system 27 controls the elevator in luffing winding plant 264 and rotates, owing to the first end of variable-amplitude steel wire rope 262 is connected with luffing winding plant 264, so elevator rotates the length change allowing for variable-amplitude steel wire rope 262, causes that the distance between the first assembly pulley and the second assembly pulley changes.When the elevator of luffing winding plant 264 rotates and pulls variable-amplitude steel wire rope 262, distance between first assembly pulley and the second assembly pulley just changes along with the length of variable-amplitude steel wire rope 262 and shortens, owing to the first assembly pulley is connected with luffing arm-tie 261, and then luffing arm-tie 261 will pull the top of crane arm 22, crane arm 22 and platform 21 are articulated with the first hinge 211, so crane arm 22 will rotate around the first hinge 211, achieve the change of crane arm 22 and horizontal plane angle, complete the luffing function of crane gear.
Owing to the lifting capacity of crane gear is very big, therefore crane gear is also very big for the pressure on ground, so that crane gear can be uniform for the pressure on ground, reduces the infringement to construction ground, is arranged below load dividing dolly 28 at platform 21.Load dividing dolly 28 is multistage balance beam structure, it is possible to the uniform load of crane gear is transferred to ground, thus reducing the infringement to work ground.
Preferably, as it is shown on figure 3, load dividing dolly 28 includes forward horizontal stand chassis and back balance chassis, forward horizontal stand chassis is placed in the downside of the front end of platform 21, and back balance chassis is placed in the downside of the rear end of platform 21.Further the load of crane gear is decomposed.
So that crane gear can realize revolute function, as shown in Figure 4, crane gear further comprises circular orbit 29.Specifically, the bottom of load dividing dolly 28 is car wheel structure, and pressure wheel is on circular orbit 29, and the wheel of load dividing dolly 28 can rotate on circular orbit 29, it is achieved thereby that the revolute function of crane gear.
As shown in Figure 6, when having barrier on construction ground, the limited area of circular orbit 29, if the crane gear of the present embodiment can have certain work rotational angle α and rotation space to avoid the barrier outside circular orbit 29, relative to crane gear of the prior art, the lifting performance of crane gear still can be improved in work rotational angle α.
Preferably, circular orbit 29 is located on subgrade case 30.Circular orbit 29 is pressed on subgrade case 30 by certain thickness steel plate, subgrade case 30 is annular slab structure, during crane gear lift heavy, the weight of lift heavy is delivered on subgrade case 30 by crane arm 22, platform 21, load dividing dolly 28 and circular orbit 29, owing to the area of subgrade case 30 is very big, can uniformly transferring the weight of crane gear to ground, ground pressure is little.
In summary, the setting of suspended counterweight makes the crane gear of this utility model embodiment when limited work area, improves the elevating capacity of crane gear.The crane gear of this utility model embodiment need not change the diameter of circular orbit and just improve the elevating capacity of crane gear, has saved the processing area of construction space and ground, has improve work efficiency.
Finally should be noted that: above example is only in order to illustrate that the technical solution of the utility model is not intended to limit；Although this utility model being described in detail with reference to preferred embodiment, those of ordinary skill in the field are it is understood that still can modify to detailed description of the invention of the present utility model or portion of techniques feature carries out equivalent replacement；Without deviating from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope that this utility model is claimed.
Claims (10)
1. a crane gear, it is characterised in that include platform, crane arm, mast and counter weight device, described crane arm and described mast are arranged on described platform, described mast is connected with described crane arm, and described counter weight device includes suspended counterweight, and described suspended counterweight hangs on described mast.
2. crane gear according to claim 1, it is characterised in that described suspended counterweight is positioned at the outside of described platform.
3. crane gear according to claim 1, it is characterised in that described crane gear also includes suspended counterweight connecting device, described suspended counterweight is connected with described mast by described suspended counterweight connecting device.
4. crane gear according to claim 3, it is characterized in that, described suspended counterweight connecting device includes balancing disk attachment structure and balancing disk, the top of described balancing disk attachment structure is connected with the top of described mast, the bottom of described balancing disk attachment structure is connected with described balancing disk so that described balancing disk hangs on described mast, and described suspended counterweight is placed on described balancing disk.
5. crane gear according to claim 4, it is characterised in that described balancing disk attachment structure is vertical with described platform.
6. crane gear according to claim 4, it is characterised in that described balancing disk attachment structure includes hanging arm-tie, and the top of described suspension arm-tie is connected with described mast, and the bottom of described suspension arm-tie is connected with described balancing disk.
7. crane gear according to any one of claim 1 to 6, it is characterised in that described counter weight device also includes platform counterweight, and described platform counterweight is located on described platform.
8. crane gear according to any one of claim 1 to 6, it is characterized in that, described crane gear also includes mast, the bottom of the bottom of described crane arm, the bottom of described mast and described mast is all hinged with described platform, the top of described mast is hinged with the top of described mast, and described mast is arranged relative to described platform inclination.
9. crane gear according to any one of claim 1 to 6, it is characterised in that described crane gear also includes crane arm attachment structure, the top of described mast is connected with the top of described crane arm by described crane arm attachment structure.
10. crane gear according to any one of claim 1 to 6, it is characterized in that, described crane gear also includes load dividing dolly and circular orbit, described platform is arranged on described load dividing dolly, described load dividing dolly can rotate on described circular orbit, and described suspended counterweight is positioned at the radial outside of described circular orbit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620021453.7U CN205346677U (en) | 2016-01-11 | 2016-01-11 | Lifting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620021453.7U CN205346677U (en) | 2016-01-11 | 2016-01-11 | Lifting apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN205346677U true CN205346677U (en) | 2016-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620021453.7U Active CN205346677U (en) | 2016-01-11 | 2016-01-11 | Lifting apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105439004A (en) * | 2016-01-11 | 2016-03-30 | 徐工集团工程机械股份有限公司 | Hoisting equipment |
| CN106365054A (en) * | 2016-10-31 | 2017-02-01 | 林少明 | Material elevator for construction |
-
2016
- 2016-01-11 CN CN201620021453.7U patent/CN205346677U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105439004A (en) * | 2016-01-11 | 2016-03-30 | 徐工集团工程机械股份有限公司 | Hoisting equipment |
| CN106365054A (en) * | 2016-10-31 | 2017-02-01 | 林少明 | Material elevator for construction |
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