CN107352445A - A kind of boom hoisting - Google Patents
A kind of boom hoisting Download PDFInfo
- Publication number
- CN107352445A CN107352445A CN201710803387.8A CN201710803387A CN107352445A CN 107352445 A CN107352445 A CN 107352445A CN 201710803387 A CN201710803387 A CN 201710803387A CN 107352445 A CN107352445 A CN 107352445A
- Authority
- CN
- China
- Prior art keywords
- crane
- lifting
- pulley
- column
- guide rail
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C19/00—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/06—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for minimising or preventing longitudinal or transverse swinging of loads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C5/00—Base supporting structures with legs
- B66C5/02—Fixed or travelling bridges or gantries, i.e. elongated structures of inverted L or of inverted U shape or tripods
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention discloses a kind of boom hoisting,It is related to hoisting technology field,Including the support being arranged on located at the horizontal guide rail of level ground and rolling in horizontal guide rail,Support is U-shaped support and lower end rolls with horizontal guide rail and installed,Support includes left column,Right column and crossbeam,Jack machinism is installed on support,Jack machinism includes crane,Top sheave,Lower sheave,Hoist rope,Rigid lifting stress bar and connection member,And the both ends of hoist rope connect respectively at left column with the lifting end of the crane on the inside of right column,The present invention is simple in construction,Pass through the crane for setting two mirror images to be distributed,In the upper end of lifting stress bar, lower sheave is set,More enough loads for preferably mitigating crane,Labour-saving effect is reached,In addition during lifting,The stability of article is higher,Improve lifting,The stability and security of transhipment.
Description
Technical field
The present invention relates to hoisting technology field, and in particular to a kind of boom hoisting.
Background technology：
Existing boom hoisting is mostly loop wheel machine or artificial carrying or lifting appliance, and freight charges compare existing loop wheel machine when in use
Expensive, artificial working strength when carrying is big, wastes time and energy, and security performance is low during big article carrying, easily injures carrying personnel, lifts by crane
Device structure is complicated, and floor space is big, fragile when operating unreasonable, and using effect is poor.
The Chinese patent of Application No. 2015210151811, which discloses one kind, includes montant and cross bar, and montant, which is provided with, to be connected
Socket part, connecting portion are provided with winding component, and winding component includes reducing motor and lifting rope, reducing motor be provided with lifting rope wind with
The collection portion unreeled, the front end of cross bar are provided with guidance set, and collection portion includes connecting shaft and sleeve, guidance set include screw rod and
Directive wheel.
Although above-mentioned technology can accelerate motor to realize the suspention to workpiece or article by driving, suspending in midair
During need the reducing motor of relatively high power to be lifted to article, reducing motor is held when being lifted to article
The load received is larger, easily causes the damage of reducing motor, and in lifting, because article is in vacant state, such lifting rope holds
It is also easy to produce and rocks, is rocked so as to drive the article of lower end also to produce, easily trigger security incident, less stable.
The content of the invention
It is an object of the invention to provide a kind of boom hoisting, to solve caused above-mentioned multinomial defect in the prior art.
A kind of boom hoisting, including the support of horizontal guide rail and rolling in horizontal guide rail located at level ground,
The support is U-shaped support and lower end rolls with horizontal guide rail and installed, and support includes left column, right column and crossbeam, the branch
Jack machinism is installed on frame, the jack machinism include crane, top sheave, lower sheave, hoist rope, rigid lifting by
Power bar and connection member, crane are provided with two, and a crane is arranged on the inner side of left column, another lifting by bracket
Machine is arranged on the inner side of right column by bracket, and the top sheave is arranged on the lower end of crossbeam and includes being in from left to right successively
Upper left pulley, middle top sheave and the upper right pulley of the same horizontal position, the lower sheave are arranged on the upper end of lifting stress bar
And sequentially pass through upper left pulley, lower-left including lower-left pulley and bottom right pulley in the same horizontal position, the hoist rope
Pulley, middle top sheave, bottom right pulley and upper right pulley, and the both ends of hoist rope are on the inside of left column and right column
The object for needing to be transported through is suspended in the lower end of lifting stress bar by the lifting end connection of crane, connection member.
Preferably, the lower-left pulley is located at the lower section of upper left pulley, and the bottom right pulley is located at the lower section of upper right pulley.
Preferably, the crane on the inside of the crane and right column on the inside of the left column is located at same level, described
Crane is located at the lower section of top sheave.
Preferably, the both ends of the lifting stress bar are provided with stable steering mechanism, and the stable steering mechanism includes vertical
Guide rail, connecting rod, roller, the connecting rod are horizontally arranged at the both ends of lifting stress bar and are respectively facing left column and right column, institute
The end that roller is arranged on connecting rod is stated, the upright guide rail is located at the inner side of left column and right column, and the roller with leading vertically
Rail is in rolling contact.
Preferably, the lower end of the bracket is provided with bracing piece, and bracing piece one end is arranged on the lower end of bracket and the other end is pacified
On support, support, bracket and bracing piece form triangular support structure.
Preferably, same controller of the crane on the bracket on the inside of the left column and right column with outside connects
Connect.
Preferably, the connection member is rope chain, and the lifting stress bar is provided with the lifting eye connected up and down, the rope
Chain is through lifting eye and is locked in lifting eye, and the lower end of rope chain is provided with the suspension hook for being used for catching on the groove on object.
The advantage of the invention is that：When being lifted by crane to article, driving arm is moved to embarkation area in horizontal guide rail,
Article is suspended in the lower section of lifting stress bar by connection member, then controls crane to be risen by the controller of outside
Hang, during lifting, crane is wound to hoist rope, and so as to complete the lifting to article, then driving arm is in water
Loading dock is moved in level gauge, carries out artificial discharging, process is once lifted by crane in completion, in the present invention, in the upper of lifting stress bar
End sets lower-left pulley and bottom right pulley, and in lifting, lower-left pulley and bottom right pulley and lifting stress bar rise together, rise
During lower-left pulley and bottom right pulley serve the effect of movable pulley, it is so more laborsaving, alleviate the load of crane,
By peg installs upper left pulley, middle top sheave and upper right pulley, three top sheaves serve lifting and are oriented to for the upper end of crossbeam
Effect, lower-left pulley is between upper left pulley and middle top sheave, bottom right pulley is located at middle top sheave and upper right pulley
Between, so make the upper end of lifting stress bar that both there are multiple stress points in lifting, improve the stability of lifting process, drop
Low article rocking during lifting, in order to further improve stability of the article during lifting, in left column and
The inner side of right column sets upright guide rail, connecting rod is set at the both ends of lifting stress bar and roller, rolling is installed in the end of connecting rod
Wheel is in rolling contact with upright guide rail, serves the position-limiting action to lifting by crane stress bar, and during lifting, lifting stress bar is rising
It can be lifted by crane along vertical direction in the presence of lifting rope rope and crane, so as to further increase article during lifting
Stability.
The present invention is simple in construction, under setting the crane of two mirror images distributions, being set in the upper end of lifting stress bar
Pulley, more enough loads for preferably mitigating crane, has reached labour-saving effect, in addition during lifting, the stabilization of article
Property it is higher, improve lifting, transhipment stability and security.
Brief description of the drawings
Fig. 1 is the schematic diagram of the embodiment of the present invention one.
Fig. 2 is the schematic diagram of the embodiment of the present invention two.
Wherein：1-horizontal guide rail, 2- connection members, 3- connecting rods, 4- rollers, 5- lifting stress bars, 6- upright guide rails, 7-
Lower-left pulley, 8- brackets, 9- cranes, 10- left columns, 11- crossbeams, 12- hoist ropes, 13- upper lefts pulley, on 14- centres
Pulley, 15- pegs, 16- upper right pulleys, 17- bottom rights pulley, 18- right columns, 19- objects.
Embodiment
To be easy to understand the technical means, the inventive features, the objects and the advantages of the present invention, with reference to
Embodiment, the present invention is expanded on further.
Embodiment one
As shown in figure 1, a kind of boom hoisting, including horizontal guide rail 1 located at level ground and rolling is led installed in level
Support in rail, the support is U-shaped support and lower end rolls with horizontal guide rail 1 and installed, and support includes left column 10, right column
18 and crossbeam 11, jack machinism is installed, the jack machinism includes crane 9, top sheave, lower sheave, risen on the support
Lifting rope rope 12, rigid lifting stress bar 5 and connection member 2, crane 9 are provided with two, and a crane 10 is pacified by bracket 8
Mounted in the inner side of left column 9, another crane 9 is arranged on the inner side of right column 18 by bracket 8, and the top sheave is arranged on
The lower end of crossbeam and include sliding in the upper left pulley 13 of the same horizontal position, middle top sheave 14 and upper right from left to right successively
Wheel 16, the lower sheave are arranged on the upper end of lifting stress bar 5 and including the lower-left pulley 7 in the same horizontal position and bottom rights
Pulley 17, the hoist rope 12 sequentially pass through upper left pulley 14, lower-left pulley 7, middle top sheave 14, bottom right pulley 17 and the right side
Top sheave 16, and the both ends of hoist rope 12 connect respectively at the lifting end of left column 10 with the crane 9 of the inner side of right column 18,
The object 19 for needing to be transported through is suspended in the lower end of lifting stress bar 5 by connection member 2.
In the present embodiment, the lower-left pulley 7 is located at the lower section of upper left pulley 13, and the bottom right pulley 17 is located at upper right
The lower section of pulley 16.
In the present embodiment, the crane 9 of the inner side of left column 10 and the crane 9 of the inner side of right column 18 are positioned at same
Horizontal plane, the crane 9 are located at the lower section of top sheave.
In the present embodiment, the lower end of the bracket 8 is provided with bracing piece, bracing piece one end be arranged on the lower end of bracket 8 and
The other end is rack-mount, and support, bracket 8 and bracing piece form triangular support structure.
In the present embodiment, same control of the crane on the bracket on the inside of the left column and right column with outside
Device connects.
In the present embodiment, the connection member 2 is rope chain, and the lifting stress bar 5 is provided with the lifting connected up and down
Hole, rope chain is through lifting eye and is locked in lifting eye, and the lower end of rope chain is provided with the suspension hook for being used for catching on the groove on object 19.
Embodiment two
As shown in Fig. 2 a kind of boom hoisting, including horizontal guide rail 1 located at level ground and rolling is led installed in level
Support in rail, the support is U-shaped support and lower end rolls with horizontal guide rail 1 and installed, and support includes left column 10, right column
18 and crossbeam 11, jack machinism is installed, the jack machinism includes crane 9, top sheave, lower sheave, risen on the support
Lifting rope rope 12, rigid lifting stress bar 5 and connection member 2, crane 9 are provided with two, and a crane 10 is pacified by bracket 8
Mounted in the inner side of left column 9, another crane 9 is arranged on the inner side of right column 18 by bracket 8, and the top sheave is arranged on
The lower end of crossbeam and include sliding in the upper left pulley 13 of the same horizontal position, middle top sheave 14 and upper right from left to right successively
Wheel 16, the lower sheave are arranged on the upper end of lifting stress bar 5 and including the lower-left pulley 7 in the same horizontal position and bottom rights
Pulley 17, the hoist rope 12 sequentially pass through upper left pulley 14, lower-left pulley 7, middle top sheave 14, bottom right pulley 17 and the right side
Top sheave 16, and the both ends of hoist rope 12 connect respectively at the lifting end of left column 10 with the crane 9 of the inner side of right column 18,
The object 19 for needing to be transported through is suspended in the lower end of lifting stress bar 5 by connection member 2.
In the present embodiment, the lower-left pulley 7 is located at the lower section of upper left pulley 13, and the bottom right pulley 17 is located at upper right
The lower section of pulley 16.
In the present embodiment, the crane 9 of the inner side of left column 10 and the crane 9 of the inner side of right column 18 are positioned at same
Horizontal plane, the crane 9 are located at the lower section of top sheave.
In the present embodiment, the both ends of the lifting stress bar 5 are provided with stable steering mechanism, stable steering mechanism bag
Upright guide rail 6, connecting rod 3, roller 4 are included, the connecting rod 3 is horizontally arranged at the both ends of lifting stress bar 5 and is respectively facing left column
10 and right column 18, the roller 4 is arranged on the end of connecting rod 3, and the upright guide rail 6 is located at left column 10 and right column 18
Inner side, the roller 4 are in rolling contact with upright guide rail 6.
In the present embodiment, the lower end of the bracket 8 is provided with bracing piece, bracing piece one end be arranged on the lower end of bracket 8 and
The other end is rack-mount, and support, bracket 8 and bracing piece form triangular support structure.
In the present embodiment, same control of the crane on the bracket on the inside of the left column and right column with outside
Device connects.
In the present embodiment, the connection member 2 is rope chain, and the lifting stress bar 5 is provided with the lifting connected up and down
Hole, rope chain is through lifting eye and is locked in lifting eye, and the lower end of rope chain is provided with the suspension hook for being used for catching on the groove on object 19.
The advantage of the invention is that：When being lifted by crane to article 19, driving arm is moved to loading in horizontal guide rail 1
Area, article 19 is suspended in the lower section of lifting stress bar 5 by connection member 2, lifting is then controlled by the controller of outside
Machine 9 is lifted by crane, and during lifting, crane 9 is wound to hoist rope 12, so as to complete the lifting to article 19, so
Driving arm moves to loading dock in horizontal guide rail 1 afterwards, carries out artificial discharging, and process is once lifted by crane in completion, in the present invention,
The upper end for lifting by crane stress bar 5 sets lower-left pulley 7 and bottom right pulley 17, lower-left pulley 7 and bottom right pulley 17 and is risen in lifting
Hang stress bar 5 together to rise, lower-left pulley 7 and bottom right pulley 17 serve the effect of movable pulley in uphill process, so more
It is laborsaving, the load of crane 9 is alleviated, upper left pulley 13, middle top sheave 14 are installed by peg 15 in the upper end of crossbeam 11
With upper right pulley 16, three top sheaves serve the effect that lifting is oriented to, and lower-left pulley 7 is located at upper left pulley 13 with being slided on centre
Wheel 14 between, bottom right pulley 17 positioned at middle top sheave 14 and upper right pulley 16 between, so lift by crane when make lifting stress bar 5
Upper end both there are multiple stress points, improve the stability of lifting process, reduce the rocking during lifting of article 19,
In order to further improve stability of the article 19 during lifting, set in the inner side of left column 8 and right column 18 and lead vertically
Rail 6, connecting rod 3 is set at the both ends of lifting stress bar 5 and roller 4 is installed in the end of connecting rod 3, roller 4 rolls with upright guide rail 6
Contact, the position-limiting action to lifting by crane stress bar 5 is served, during lifting, lifting stress bar 5 is in hoist rope 12 and lifting
In the presence of machine 9 can be lifted by crane along vertical direction, so as to further increase lifting during article 19 stability.
The present invention is simple in construction, by setting the crane 9 of two mirror images distributions, being set in the upper end of lifting stress bar 5
Lower sheave, it is more enough preferably mitigate crane 9 load, reached labour-saving effect, in addition during lifting, article it is steady
It is qualitative higher, improve lifting, the stability and security of transhipment.
As known by the technical knowledge, the present invention can pass through the embodiment party of other essence without departing from its spirit or essential feature
Case is realized.Therefore, embodiment disclosed above, for each side, all it is merely illustrative, is not only.Institute
Have within the scope of the present invention or be included in the invention in the change being equal in the scope of the present invention.
Claims (7)
1. a kind of boom hoisting, including the branch of horizontal guide rail (1) and rolling in horizontal guide rail (1) located at level ground
Frame, it is characterised in that the support is that U-shaped support and lower end roll with horizontal guide rail (1) and installed, support include left column (8),
Right column (18) and crossbeam (11), jack machinism is provided with the support, and the jack machinism includes crane (9), upper cunning
Wheel, lower sheave, hoist rope (12), rigid lifting stress bar (5) and connection member (2), crane (9) is provided with two, one
Individual crane (9) is arranged on the inner side of left column (8) by bracket (8), and another crane (9) is arranged on by bracket (8)
The inner side of right column (18), the top sheave are arranged on the lower end of crossbeam (11) and include being in same level from left to right successively
Upper left pulley (13), middle top sheave (14) and the upper right pulley (16) of position, the lower sheave are arranged on lifting stress bar (5)
Upper end and including in the same horizontal position lower-left pulley (7) and bottom right pulley (17), the hoist rope (12) is successively
Through upper left pulley (13), lower-left pulley (7), middle top sheave (14), bottom right pulley (17) and upper right pulley (16), and lift by crane
The both ends of rope (12) connect respectively at the lifting end of left column (8) with the crane (9) on the inside of right column (18), connection member
(2) object (19) for needing to be transported through is suspended in the lower end of lifting stress bar (5).
A kind of 2. boom hoisting according to claim 1, it is characterised in that：The lower-left pulley (7) is located at upper left pulley
(13) lower section, the bottom right pulley (17) are located at the lower section of upper right pulley (16).
A kind of 3. boom hoisting according to claim 1, it is characterised in that：Crane (9) on the inside of the left column (8)
It is located at same level with the crane (9) on the inside of right column (18), the crane (9) is located at the lower section of top sheave.
A kind of 4. boom hoisting according to claim 1, it is characterised in that：The both ends of the lifting stress bar (5) are provided with
Stable steering mechanism, the stable steering mechanism include upright guide rail (6), connecting rod (3), roller (4), and the connecting rod (3) is horizontal
Installed in the both ends of lifting stress bar (5) and left column (8) and right column (18) are respectively facing, the roller (4), which is arranged on, to be connected
The end of bar (3), the upright guide rail (6) located at the inner side of left column (8) and right column (18), the roller (4) with vertically
Guide rail (6) is in rolling contact.
A kind of 5. boom hoisting according to claim 1, it is characterised in that：The lower end of the bracket (8) is provided with bracing piece,
Bracing piece one end is arranged on the lower end of bracket (8) and the other end is rack-mount, and support, bracket (8) and bracing piece form three
Angular supporting construction.
A kind of 6. boom hoisting according to claim 1, it is characterised in that：In the left column (8) and right column (18)
Same controller of the crane (9) with outside on the bracket of side is connected.
A kind of 7. boom hoisting according to claim 1, it is characterised in that：The connection member (2) is rope chain, described
Hang stress bar (5) and be provided with the lifting eye connected up and down, the rope chain is through lifting eye and is locked in lifting eye, the lower end of rope chain
Provided with the suspension hook for catching on the groove on object (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710803387.8A CN107352445A (en) | 2017-09-08 | 2017-09-08 | A kind of boom hoisting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710803387.8A CN107352445A (en) | 2017-09-08 | 2017-09-08 | A kind of boom hoisting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107352445A true CN107352445A (en) | 2017-11-17 |
Family
ID=60290017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710803387.8A Pending CN107352445A (en) | 2017-09-08 | 2017-09-08 | A kind of boom hoisting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107352445A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109553022A (en) * | 2018-10-24 | 2019-04-02 | 中国二十冶集团有限公司 | Movable stand is used in electrical cabinet installation |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0180395A1 (en) * | 1984-10-26 | 1986-05-07 | MORGAN CONSTRUCTION COMPANY (a Massachusetts corporation) | Hoist mechanism |
| JPH11147690A (en) * | 1997-11-17 | 1999-06-02 | Taisei Corp | Low head space reinforcing bar building-in device |
| CN203667840U (en) * | 2013-11-27 | 2014-06-25 | 天津起重设备有限公司 | Remote winding type four-lifting-point large-scale lifting assembly equipment |
| CN204265347U (en) * | 2014-09-17 | 2015-04-15 | 合肥市宏发起重机有限公司 | Minor crane |
| CN204823886U (en) * | 2015-08-04 | 2015-12-02 | 任伟杰 | Simple and easy rail mounted container gantry crane gallows |
| CN205397854U (en) * | 2016-03-11 | 2016-07-27 | 河北诚业建工集团有限责任公司 | Gasifier hoist and mount hoisting device |
-
2017
- 2017-09-08 CN CN201710803387.8A patent/CN107352445A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0180395A1 (en) * | 1984-10-26 | 1986-05-07 | MORGAN CONSTRUCTION COMPANY (a Massachusetts corporation) | Hoist mechanism |
| JPH11147690A (en) * | 1997-11-17 | 1999-06-02 | Taisei Corp | Low head space reinforcing bar building-in device |
| CN203667840U (en) * | 2013-11-27 | 2014-06-25 | 天津起重设备有限公司 | Remote winding type four-lifting-point large-scale lifting assembly equipment |
| CN204265347U (en) * | 2014-09-17 | 2015-04-15 | 合肥市宏发起重机有限公司 | Minor crane |
| CN204823886U (en) * | 2015-08-04 | 2015-12-02 | 任伟杰 | Simple and easy rail mounted container gantry crane gallows |
| CN205397854U (en) * | 2016-03-11 | 2016-07-27 | 河北诚业建工集团有限责任公司 | Gasifier hoist and mount hoisting device |
Non-Patent Citations (1)
| Title |
|---|
| 吴广河主编: "《港口物流机械》", 31 July 2015, 人民交通出版社股份有限公司 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109553022A (en) * | 2018-10-24 | 2019-04-02 | 中国二十冶集团有限公司 | Movable stand is used in electrical cabinet installation |
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Application publication date: 20171117 |