CN207658975U - A kind of cantilever crane - Google Patents
A kind of cantilever crane Download PDFInfo
- Publication number
- CN207658975U CN207658975U CN201721835038.6U CN201721835038U CN207658975U CN 207658975 U CN207658975 U CN 207658975U CN 201721835038 U CN201721835038 U CN 201721835038U CN 207658975 U CN207658975 U CN 207658975U
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- CN
- China
- Prior art keywords
- cantilever
- column
- jib
- counter
- clump weight
- 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.)
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Abstract
The utility model is related to a kind of cantilever cranes, including column, cantilever, moving trolley and electric block, cantilever is mounted on by rotating support on column, and it is rotated relative to column, it further include balancing device, balancing device includes clump weight and counter-jib, clump weight relatively sets up separately with moving trolley in the both sides of column, clump weight is fixedly mounted on counter-jib, counter-jib is slidably mounted on cantilever, the driving mechanism of driving counter-jib relative movement trolley reverse movement is equipped between moving trolley and counter-jib, to control clump weight at a distance from column, make clump weight at a distance from column and the increase and decrease of the distance synchronous of moving trolley and column.The utility model reduces the torque difference of column both sides, reduces the influence to rotating support, improve the service life of crane, improve traveling comfort and safety, improve the loading capacity of crane by the way that counter-jib and clump weight is arranged.
Description
Technical field
The utility model is related to crane technical field, more particularly to a kind of cantilever crane.
Background technology
Cantilever crane is also known as cantilever crane, it is the middle-size and small-size hoisting equipment that developed recently gets up, unique structure,
Securely and reliably, has the features such as efficient, energy saving, time saving and energy saving, flexible, three-dimensional space obtains interior random operation, in section away from, intensive tune
The occasion of fortune more shows its superiority than other routinely handling appliances.Now current cantilever crane working strength be it is light-duty,
Crane is made of column, revoliving arm device for revolving and driving and electric block, and column lower end is fixed on coagulation by foundation bolt
On earth foundation, spiral arm is driven to turn round by cycloidal-pin wheel deceleration device, electric block makees left and right straight line fortune on spiral arm I-steel
Row, and hoisting heavy.Radial arm of crane is hollow section structure, and from heavy and light, span is big, and lifting capacity is big, economy and durability.But due to
Cantilever is longer, and its own gravity of weight generates prodigious torque by cantilever, influences the balance of crane, and the moment loading
At the rotating support position of cantilever, the service life of bearing is reduced.
Utility model content
The utility model provides a kind of cantilever crane in order to solve the above problem, keeps the balance of crane.
The above-mentioned purpose of the utility model technical scheme is that：A kind of cantilever crane, including
Column, cantilever, the moving trolley moved along cantilever and the electric block in moving trolley, the cantilever is by rotating branch
Hold on the column, and rotated relative to the column, further include balancing device, the balancing device include clump weight and
Counter-jib, the clump weight relatively set up separately with the moving trolley in the both sides of the column, and the clump weight is fixedly mounted
On the counter-jib, the counter-jib is slidably mounted on the cantilever, is set between the moving trolley and the counter-jib
There is the driving mechanism for driving the relatively described moving trolley reverse movement of the counter-jib, to control the clump weight and the column
Distance, make the clump weight at a distance from the column and the distance synchronous of the moving trolley and the column increase and decrease.
Preferably, the driving mechanism includes making the clump weight to the running block moved far from the column direction
Part and the screw component for making the counterweight block reset.
Preferably, the movable pulley component includes first pulley, second pulley and traction rope, the first pulley is fixed
Mounted on the cantilever close to one end of the column, the second pulley is mounted on the counter-jib and with the balance
Arm synchronizing moving, the traction rope is around being located in the first pulley and the second pulley, and one end is fixed in the shifting
On dynamic trolley, the other end is fixed on the cantilever, and the shift motion of the counter-jib is the shift motion of the moving trolley
1/2.
Preferably, the screw component includes the drive block for driving lead screw and being moved along drive screw shaft line, the drive
Dynamic lead screw is rotatably installed on the cantilever, and axis is parallel to the length direction of the cantilever, and the drive block is fixedly mounted
On the counter-jib.
Preferably, the cantilever is equipped with the bumper bracket for installing the screw component, the bumper bracket is removable
Ground is mounted on the cantilever, and the moving direction of the bumper bracket is the axis direction of the driving lead screw, the bumper bracket
Both ends are equipped with buffer spring.
There is prodigious inertia, it is static to be not easy moment, generates when being moved under the draw of traction rope due to counter-jib
Larger impact, influences the balance and safety of crane, and is easy to damage lead screw, therefore by the way that bumper bracket and succession bullet is arranged
Spring reduces the impact that counter-jib generates；Simultaneously because the movement of counter-jib is by the synchronous effect of moving trolley and driving lead screw,
Once there is moving trolley movement and drive lead screw not rotate synchronously, be easy to damage drive block at this time and drive the cooperation of lead screw,
Therefore screw component can be protected when the two is not run simultaneously by the bumper bracket.
Preferably, the clump weight, the side close to the side of the column is arcwall face, is set on the arcwall face
There are the idler wheel rolled along leg surface, the pivot center of the idler wheel to be parallel to the clump weight and turn relative to what the column rotated
Shaft line.
Preferably, the shaft both ends of the idler wheel are equipped with sliding block, the sliding block slips in the sliding slot of the clump weight,
The spring for pushing the sliding block to reset is equipped in the sliding slot, the glide direction of the sliding block is directed toward the clump weight turning circumference
Radial direction.
Preferably, the sliding block, the end face being in contact with the sliding slot is arc surface, and the end of the shaft is hinged
On the sliding block, the spring is made to adjust the displacement of the single sliding block.
Preferably, the cross section of the cantilever is stud structure, the cantilever will be in the cantilever by partition board
Chamber is divided into two cavitys up and down, and the upper surface of the cantilever is equipped with elongated slot, and the drive block passes through the elongated slot to stretch into upside
It in cavity, and is moved in the elongated slot, the moving trolley is equipped with the linked block for fixed tractive, and the linked block is set
It sets in the cavity of downside.
The beneficial effects of the utility model：The utility model reduces column both sides by the way that counter-jib and clump weight is arranged
Torque difference reduces the influence to rotating support, improves the service life of crane, improve traveling comfort and safety,
Improve the loading capacity of crane.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model embodiment；
Fig. 2 is the connection diagram of cantilever and counter-jib in the utility model embodiment；
Fig. 3 is the side view of cantilever and counter-jib in the utility model embodiment；
Fig. 4 is the structural schematic diagram of clump weight in the utility model embodiment；
In figure：1- columns, 2- cantilevers, 21- side plates, 3- counter-jibs, 31- support wheels, 32- limiting plates, 4- clump weights, 41-
Idler wheel, 42- shafts, 43- sliding blocks, 44- springs, 5- moving trolleys, 51- linked blocks, 6- electric blocks, 7- driving mechanisms, 71-
One pulley, 72- second pulleys, 73- traction ropes, 74- bumper brackets, 75- driving lead screws, 76- drive blocks, 77- buffer springs, 8- turn
Dynamic bearing.
Specific implementation mode
In conjunction with attached drawing, the utility model is described in further detail.This specific embodiment is only to the utility model
Explanation, be not limitations of the present invention, those skilled in the art, can be according to need after reading this specification
The modification of not creative contribution is made to the present embodiment, but as long as in the right of the utility model all by
The protection of Patent Law.
Embodiment：As shown in Figs 1-4, a kind of cantilever crane, including it is column 1, cantilever 2, small along the moving of moving of cantilever 2
Vehicle 5 and the electric block 6 in moving trolley 5, the cantilever 2 are mounted on by rotating support 8 on the column 1, and
It is rotated relative to the column 1, rotating support 8 includes the lower support that the upper bearing plate on cantilever 2 is arranged and is arranged on column 1
Plate is connected by rotation axis with bearing between upper and lower support plate.
As depicted in figs. 1 and 2, cantilever 2 is equipped with balancing device, and balancing device includes clump weight 4 and counter-jib 3, described
Clump weight 4 relatively sets up separately with the moving trolley 5 in the both sides of the column 1, and the clump weight 4 is fixedly mounted on described flat
It weighs on arm 3, the counter-jib 3 is slidably mounted on the cantilever 2, is equipped with and is driven between the moving trolley 5 and the counter-jib 3
The driving mechanism 7 that the relatively described moving trolley 5 of the counter-jib 3 moves backward is moved, to control the clump weight 4 and the column
1 distance makes the clump weight 4 at a distance from the column 1 and the distance synchronous increasing of the moving trolley 5 and the column 1
Subtract.
Driving mechanism 7 includes making the clump weight 4 to the movable pulley component moved far from 1 direction of the column and making described
The screw component that clump weight 4 resets.Movable pulley component includes first pulley 71, second pulley 72 and traction rope 73, and described first
Pulley 71 is fixedly mounted on one end of the close column 1 of the cantilever 2, and the second pulley 72 is mounted on the counter-jib
On 3 and with 3 synchronizing moving of the counter-jib, the traction rope 73 is around being located at the first pulley 71 and the second pulley 72
On, and one end is fixed in the moving trolley 5, the other end is fixed on the cantilever 2, the mobile row of the counter-jib 3
Journey is the 1/2 of the shift motion of the moving trolley 5.Screw component includes driving lead screw 75 and is moved along driving 75 axis of lead screw
Drive block 76, the driving lead screw 75 is rotatably installed on the cantilever 2, and axis is parallel to the length side of the cantilever 2
To the drive block 76 is fixedly mounted on the counter-jib 3.
Cantilever 2 is equipped with the bumper bracket 74 for installing the screw component, and the bumper bracket 74 is movably mounted at
On the cantilever 2, the moving direction of the bumper bracket 74 is the axis direction of the driving lead screw 75, the two of the bumper bracket 74
End is equipped with buffer spring 77.
As shown in figure 3, the cross section of cantilever 2 is stud structure, the cantilever 2 will be in the cantilever 2 by partition board
Chamber is divided into two cavitys up and down, and the upper surface of the cantilever 2 is equipped with elongated slot, and the drive block 76 stretches into upside across the elongated slot
Cavity in, and moved in the elongated slot, the moving trolley 5 is equipped with the linked block 51 for fixed tractive 73, described
Linked block 41 is arranged in the cavity of downside.The upper surface of cantilever 2 is equipped with the side plate 21 that extends to both sides, on the counter-jib 3
Equipped with the limiting plate 32 positioned at 21 lower section of the side plate, the limiting plate 32 and the lower face of the counter-jib 3 are formed for card
Connect the limiting slot of the side plate 21.Counter-jib 3 is equipped with the support wheel 31 being located in the limiting slot, and the support wheel 31 is along institute
State the upper surface movement of cantilever 2.
As shown in figure 4, clump weight 4, the side close to the side of the column 1 is arcwall face, is set on the arcwall face
There is an idler wheel 41 along 1 surface scrolls of column, the pivot center of the idler wheel 41 is parallel to the column 1 relatively of the clump weight 4
The pivot center of rotation.42 both ends of shaft of idler wheel 41 are equipped with sliding block 43, and the sliding block 43 slips the sliding slot in the clump weight 4
It is interior, the spring 44 for pushing the sliding block 43 to reset is equipped in the sliding slot, the glide direction of the sliding block 43 is directed toward the counterweight
The radial direction of 4 turning circumference of block.Sliding block 43, the end face being in contact with the sliding slot are arc surface, the end of the shaft 42
Portion is hinged on the sliding block 43, and the spring 44 is made to adjust the displacement of the single sliding block 43.
Claims (9)
1. a kind of cantilever crane, including column（1）, cantilever（2）, along cantilever（2）Mobile moving trolley（5）With mounted on shifting
Dynamic trolley（5）On electric block（6）, the cantilever（2）Pass through rotating support（8）Mounted on the column（1）On, and it is opposite
The column（1）Rotation, it is characterised in that：Further include balancing device, the balancing device includes clump weight（4）And counter-jib
（3）, the clump weight（4）With the moving trolley（5）Relatively set up separately in the column（1）Both sides, the clump weight（4）
It is fixedly mounted on the counter-jib（3）On, the counter-jib（3）It is slidably mounted on the cantilever（2）On, the moving trolley
（5）With the counter-jib（3）Between be equipped with and drive the counter-jib（3）The relatively described moving trolley（5）The driving of reverse movement
Mechanism（7）, to control the clump weight（4）With the column（1）Distance, make the clump weight（4）With the column（1）'s
Distance and the moving trolley（5）With the column（1）Distance synchronous increase and decrease.
2. a kind of cantilever crane according to claim 1, it is characterised in that：The driving mechanism（7）It is described including making
Clump weight（4）To far from the column（1）The movable pulley component and make the clump weight that direction is moved（4）The lead screw group of reset
Part.
3. a kind of cantilever crane according to claim 2, it is characterised in that：The movable pulley component includes first pulley
（71）, second pulley（72）And traction rope（73）, the first pulley（71）It is fixedly mounted on the cantilever（2）Close to described
Column（1）One end, the second pulley（72）Mounted on the counter-jib（3）Above and with the counter-jib（3）Synchronizing moving,
The traction rope（73）Around being located at the first pulley（71）With the second pulley（72）On, and one end is fixed in the shifting
Dynamic trolley（5）On, the other end is fixed in the cantilever（2）On, the counter-jib（3）Shift motion be the moving trolley
（5）Shift motion 1/2.
4. a kind of cantilever crane according to claim 3, it is characterised in that：The screw component includes driving lead screw
（75）Lead screw is driven with edge（75）The drive block of axis movement（76）, the driving lead screw（75）It is rotatably installed in the cantilever
（2）On, axis is parallel to the cantilever（2）Length direction, the drive block（76）It is fixedly mounted on the counter-jib（3）
On.
5. a kind of cantilever crane according to claim 4, it is characterised in that：The cantilever（2）It is equipped with for installing
The bumper bracket of the screw component（74）, the bumper bracket（74）It is movably mounted at the cantilever（2）On, the bumper bracket
（74）Moving direction be the driving lead screw（75）Axis direction, the bumper bracket（74）Both ends be equipped with buffer spring
（77）.
6. a kind of cantilever crane according to claim 1, it is characterised in that：The clump weight（4）, close to described vertical
Column（1）Side side be arcwall face, the arcwall face be equipped with along column（1）The idler wheel of surface scrolls（41）, the rolling
Wheel（41）Pivot center be parallel to the clump weight（4）The relatively described column（1）The pivot center of rotation.
7. a kind of cantilever crane according to claim 6, it is characterised in that：The idler wheel（41）Shaft（42）Both ends
Equipped with sliding block（43）, the sliding block（43）It slips in the clump weight（4）Sliding slot in, be equipped in the sliding slot and push the cunning
Block（43）The spring of reset（44）, the sliding block（43）Glide direction be directed toward the clump weight（4）The radial direction side of turning circumference
To.
8. a kind of cantilever crane according to claim 7, it is characterised in that：The sliding block（43）, with the sliding slot
The end face being in contact is arc surface, the shaft（42）End be hinged on the sliding block（43）On, make the spring（44）It adjusts
The single sliding block of section（43）Displacement.
9. a kind of cantilever crane according to claim 4, it is characterised in that：The cantilever（2）Cross section be day word
Shape structure, the cantilever（2）By partition board by the cantilever（2）Inner cavity be divided into up and down two cavitys, the cantilever（2）It is upper
End face is equipped with elongated slot, the drive block（76）In the cavity that the elongated slot stretches into upside, and moved in the elongated slot, institute
State moving trolley（5）Equipped with for fixed tractive（73）Linked block, the linked block is arranged in the cavity of downside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721835038.6U CN207658975U (en) | 2017-12-25 | 2017-12-25 | A kind of cantilever crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721835038.6U CN207658975U (en) | 2017-12-25 | 2017-12-25 | A kind of cantilever crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207658975U true CN207658975U (en) | 2018-07-27 |
Family
ID=62943296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721835038.6U Expired - Fee Related CN207658975U (en) | 2017-12-25 | 2017-12-25 | A kind of cantilever crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207658975U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107902568A (en) * | 2017-12-25 | 2018-04-13 | 浙江邦博机械有限公司 | A kind of cantilever crane |
-
2017
- 2017-12-25 CN CN201721835038.6U patent/CN207658975U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107902568A (en) * | 2017-12-25 | 2018-04-13 | 浙江邦博机械有限公司 | A kind of cantilever crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180727 Termination date: 20191225 |