CN104276515B - Jib crane - Google Patents
Jib crane Download PDFInfo
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- CN104276515B CN104276515B CN201310271183.6A CN201310271183A CN104276515B CN 104276515 B CN104276515 B CN 104276515B CN 201310271183 A CN201310271183 A CN 201310271183A CN 104276515 B CN104276515 B CN 104276515B
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- mast
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- arm
- fixed
- jib crane
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- 238000007667 floating Methods 0.000 claims abstract description 11
- 238000004804 winding Methods 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 23
- 239000010959 steel Substances 0.000 claims description 23
- 230000001681 protective effect Effects 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 8
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/60—Derricks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/82—Luffing gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/84—Slewing gear
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention discloses a kind of jib crane, which includes：Rotary table, mast, arm, hoisting winding and luffing hoist engine, rotary table include：Underframe；Gyration gear ring, is fixed on underframe；Floating bearing, is made up of bearing inner race and bearing outer ring, and bearing inner race is fixed on underframe, and position is coaxial with gyration gear ring；And power set, including motor and gear, motor is directly or indirectly fixed on bearing outer ring, and gear is fixed on the armature spindle of motor, is engaged with gyration gear ring；Bearing outer ring is provided with reversing frame, and for connecting mast and arm, reversing frame is provided with saddle, and luffing hoist engine is arranged on saddle；Mast and arm are spliced by pole section, are provided with fixed station in mast coxopodite, and hoisting winding is arranged on fixed station.This jib crane is spliced using light widget, can easily be dismounted and be transported；Hoisting winding and luffing hoist engine are all arranged on the inside of crane, can achieve 360 degree of rotations.
Description
Technical field
The present invention relates to crane, more particularly to jib crane.
Background technology
Hanging device is applied extremely wide in construction, for the engineering that some need the operation of long-time position, often leads to
Cross and build tower crane, straddle truck or completed using the Large-scale Hoisting such as jib crane equipment, be characterized in that Liftable is big heavy
Amount object, and the long-term operation service efficiency that repeats is high, saves construction cost.But this kind of Large-scale Hoisting equipment to site requirements extremely
Strictly, floor space is big, and assembly and disassembly are relatively complicated, needs crane to coordinate and completes.
Some provisional lifting operations are usually further encountered in construction, and its operating location is not fixed, and lifting object is also usual
It is a little more trifling light small workpiece, such lifting operation obviously need not be built Large-scale Hoisting equipment to complete.In this regard, in construction
Complete often by crane is rented.The free degree of crane lifting is high, mobility strong, but requirement of the crane to place also ten
Divide strictly, a lot of places are that crane cannot be reached.And crane rent is unfavorable for Long-Time Service with sufficiently expensive.
For the problems referred to above, in construction, often use a kind of jib crane, its typically by rotation rotary table with
And it is fixed on the mainmast rotated on rotary table and luffing arm composition.Jib crane has that assembling is simple, lifting capacity
Greatly, the features such as being limited little by landform.But its flexibility is poor, movement is more difficult, is assembled after needing dismounting again.Obviously, its
There are a lot of troubles using upper.In the unfixed construction site in the places such as mountain area, pool, hills, such as some cables, optical fiber etc.
Line construction, needs often to dismount jib crane, and the weight of each part of existing jib crane is all very
Weight, mobile and dismounting are all cumbersome, and its hoist engine is external, and rotary table revolution area occupied is big, and structure is not compact, it is impossible to
Realize 360 degree of rotations.
Content of the invention
The embodiment of the present application is by providing a kind of jib crane so as to can be used in various landform, be moved easily and
Dismounting, and can achieve 360 degree of rotations.
The embodiment of the present application provides a kind of jib crane, and which includes：Rotary table, mast, arm, lifting elevator
Machine and luffing hoist engine, the rotary table include：Underframe；Gyration gear ring, is fixed on the underframe；Floating bearing, by
Bearing inner race and bearing outer ring are constituted, and the bearing inner race is fixed on the underframe, and position is coaxial with the gyration gear ring；With
And power set, including motor and gear, the motor is directly or indirectly fixed on the bearing outer ring, and the gear is fixed
On the armature spindle of the motor, engage with the gyration gear ring；The bearing outer ring is provided with reversing frame, described for connecting
Mast and arm, the reversing frame are provided with saddle, and the luffing hoist engine is arranged on the saddle；The mast and arm
It is spliced by pole section, in mast coxopodite, fixed station is provided with, the hoisting winding is arranged on the fixed station.
Above-mentioned jib crane, wherein described underframe include inside casing and housing, and the inside casing is by metalwork welding
Become, the gyration gear ring is fixed thereon；The housing is bolted the periphery in the inside casing.
Above-mentioned jib crane, wherein described gyration gear ring are ring gear.
Above-mentioned jib crane, wherein described reversing frame bottom are provided with gripper shoe, the gripper shoe and the gyroaxis
Hold a protective cover is formed, the gyration gear ring is covered on wherein；The gripper shoe is provided with motor axis hole, the turning motor
Armature spindle and armature spindle on gear engage through the motor axis hole with the gyration gear ring.Also set in the gripper shoe
There is ball seat, the ball seat is hemispherical, the mast coxopodite is provided with bulb, and the bulb is erected on the ball seat.
Above-mentioned jib crane, is additionally provided with clamp in wherein described gripper shoe, and the mast coxopodite is provided with location-plate,
When the bulb is set up on the ball seat, the location-plate is blocked by clamp just.
Above-mentioned jib crane, wherein described power set also include a reductor, are connected to the motor and tooth
Between wheel, for the transmission between the motor and the gear.
Above-mentioned jib crane, wherein described motor are the motor of remote-controlled start and stop.
Above-mentioned jib crane, wherein described arm are articulated in the mast coxopodite.
Above-mentioned jib crane, wherein described mast also include mast head, are arranged on the top of the mast, the mast
Head includes：Cuff, is a metal valve jacket, is set on the top pole section of the mast；Pillar, is fixed on the cuff top
Face, which is provided with steel wire rope through hole, the opening direction of the steel wire rope through hole and the luffing hoist engine and arm institute
Relative in locality；Luffing pulley, is fixed on the pillar, and the tangent line of its groove top passes through the steel wire rope through hole；
Cable rope bearing, the inner ring of cable rope bearing are fixed on the pillar；And cable rope system arm, at least three, uniform laying
In the outer ring of the cable rope bearing, each cable rope system arm is provided with cable rope system hole.
Above-mentioned jib crane, the lower section of wherein described wire rope hole both ends open are symmetrically arranged with pulley arm, institute
Luffing pulley is stated for a pair, be separately positioned on the pulley arm, the tangent line of the groove top of the luffing pulley is through described
Steel wire rope through hole.
The one or more technical schemes provided in the embodiment of the present application, at least have the following technical effect that or advantage：
1st, the rotary table compact conformation of the jib crane of the technical program, efficiently solves lifting in prior art
The big problem of machine rotary table floor space, and then crane is built in place that can be extremely limited on construction ground.
2nd, the jib crane of the technical program is connect by light widget group and forms, and efficiently solves prior art topmast
Bar crane complex structure, the heavy problem of assembly, and then can be convenient during carrying and handling.
3rd, the drive mechanism of the rotary table of the jib crane of the technical program is protected by protective cover, and its operation
Completed by remote control, and then make which safer during use.
4th, the hoist engine of the jib crane of the technical program is fixed on its rotary table and mast, can be with revolution bottom
Seat is rotated together with, and then the jib crane completes 360 degree of revolutions.
Description of the drawings
Fig. 1 is the semi-cutaway of jib crane rotary table；
Fig. 2 is the schematic diagram of underframe；
Fig. 3 is the local semi-cutaway of floating bearing and gyration gear ring；
Fig. 4 is the semi-cutaway of power set；
Fig. 5 is the schematic diagram of rotary table and reversing frame；
Fig. 6 is the schematic diagram of mast coxopodite；
Fig. 7 is the schematic diagram of mast head；
Fig. 8 is the use state figure of jib crane.
Specific embodiment
The embodiment of the present application solves prior art topmast rod-type crane structure by providing a kind of jib crane
Not compact, floor space is not big, and one-piece part is heavy, easy to assemble and the shortcomings of cannot realize 360 degree and rotate, using one kind by
The jib crane that small-sized part assembles, the power set of its rotary table and responsible lifting and the elevator of luffing
Machine is arranged at the inside of the jib crane.
In order to be better understood from technique scheme, below in conjunction with Figure of description and specific embodiment to upper
State technical scheme to be described in detail.
As shown in figure 1, being the semi-cutaway of jib crane rotary table, which includes：Underframe 1, gyration gear ring 2, revolution
Bearing 3 and turning motor 4.Underframe 1, is a metal framework；Gyration gear ring 2, is fixed on underframe 1；Floating bearing 3, by axle
Hold inner ring and bearing outer ring is constituted, bearing inner race is fixed on underframe 1, and position is coaxial with gyration gear ring 2；And power set 4,
Power set 4 include motor 41 and gear 42, and motor 41 is directly or indirectly fixed on bearing outer ring, and gear 42 is carried by motor 41
Dynamic, engage with gyration gear ring 2, rotate relative to underframe so as to the rotational band moving axis bearing outer-ring by motor 41.
As shown in Fig. 2 being the schematic diagram of underframe, underframe is made up of inside casing 11 and housing 12, and inside casing 11 is one by I-steel
Join end to end the square frame being welded, and which is provided with bolt hole, preferably, for making inside casing 11 more firmly, in each I-steel
The corner point of connection is welded with gusset 13.Housing 12 is made up of some I-steel, and each I-steel is provided with bolt hole, they it
Between be bolted, also through the periphery for being bolted to inside casing 11, constitute a firm framework with inside casing 11.At revolution bottom
Seat transition process in housing 12 can be split carrying, using when be assembled on inside casing 11 again.Thus both subtract
The shared area during transport of little rotary table, alleviates the carrying weight of single part again.
As shown in figure 3, being the local semi-cutaway of floating bearing and gyration gear ring, floating bearing 3 adopts thrust roller bearing,
Which includes bearing inner race 31, bearing outer ring 32 and roller 33, and bearing inner race 31 is welded on above-mentioned inside casing 11, bearing outer ring 32
It is set in outside bearing inner race 31, is separated with therebetween roller 33.Bearing outer ring 32 is provided with gripper shoe 34, with 3 shape of floating bearing
Become a protective cover.Groove platform 35 is additionally provided with gripper shoe 34, and which is a step type slot opened up out in gripper shoe 34, groove platform
35 center offers motor axis hole 36, is further opened with some bolts hole on groove platform 35, and array is in above-mentioned motor axis hole 36
Periphery.
Gyration gear ring 2 is fixed on above-mentioned inside casing, and position is coaxial with the bearing inner race of above-mentioned floating bearing, preferably, being
Avoid brought dangerous hidden danger and the accidental damage of itself being exposed due to the teeth of gyration gear ring, gyration gear ring 2 is arranged
Inside in above-mentioned protective cover.Preferably, above-mentioned gyration gear ring is set to ring gear, the outer wall of gyration gear ring can be fixed to just
On the inwall of above-mentioned floating bearing.
As shown in figure 4, being the semi-cutaway of power set, power set 4 include motor 41 and gear 42, and gear 42 is fixed on
In the rotary shaft of motor 41.Motor 41 is provided with ring flange 45, and the ring flange 45 is provided with bolt hole, and motor shaft and gear are led to
The motor axis hole that crosses in above-mentioned gripper shoe is penetrated in above-mentioned protective cover, and the ring flange on motor is plugged in above-mentioned groove platform 35,
Bolt hole on ring flange is relative with the bolt hole on above-mentioned groove platform, penetrates bolt and is fixed, now the gear on motor shaft
42 are in same level position with above-mentioned gyration gear ring just, and gear engaged with gyration gear ring, so as to the rotation by motor with
And gear and the cooperation of gyration gear ring, so that bearing outer ring, gripper shoe and power set is rotated with respect to underframe.
Preferably, for making the moment of torsion of motor bigger, more steadily, on above-mentioned motor, an external reductor 43, subtracts for operating
Rotating shaft 44 being provided with fast machine 43, being fixed with gear 42 in rotating shaft 44, motor 41 sends power to reductor 43, then by slowing down
Machine 43 drives rotating shaft 44 and gear 42 to rotate.The lower section of reductor 43 is additionally provided with ring flange 45, and ring flange 45 is provided with bolt
Hole, the ring flange 45 are plugged in above-mentioned groove platform 35, and ring flange 45 is just relative with the bolt hole on groove platform 35, will by bolt
The two is fixing, and the gear 42 in now rotating shaft 44 is just engaged with above-mentioned gyration gear ring.So as to be realized outside bearing by the operating of motor
The rotation of circle.
Preferably, for ensureing crane safety, above-mentioned motor 41 is remote-controlled motor, and operating personnel can be away from crane
Revolution range operated, make hoisting operation safer.
As shown in figure 5, being the schematic diagram of rotary table and reversing frame.Reversing frame 5 for one connect by I-steel group vertical
Body framework, is fixed in above-mentioned gripper shoe.Reversing frame 5 is provided with luffing elevator board 51, for fixing luffing hoist engine 52, becomes
Holding card is additionally provided with width elevator board, the dismounting of luffing hoist engine 52 can be conveniently used for.The centre bit of above-mentioned gripper shoe is installed
There is ball cover 53, ball cover 53 is hemispherical.Also at least provided with two pieces of clamps 54 in gripper shoe, clamp 54 is located at above-mentioned ball cover 53
Periphery.
As shown in fig. 6, being the schematic diagram of mast coxopodite, mast coxopodite 6 is a pole section that is set up by I-steel, embraces
The internal openwork part of bar section forms a storage chamber 61, and the side of the storage chamber 61 offers open 62, and the bottom of mast coxopodite sets
There is fixed station 63, hoisting winding 64 is fixed on the top surface of the fixed station 63, be placed in above-mentioned storage chamber 61, lifting coil silk
Rope is passed from described open 62.The bottom of fixed station 63 is provided with ball seat 65, is hemispherical, is set up in above-mentioned ball cover 53.Ball seat
Location-plate 66 is provided with around 65, and when ball seat 65 is set up in above-mentioned ball cover 53, location-plate 66 is blocked by above-mentioned clamp 54 just,
So as to define the axial freedom of mast coxopodite.Arm axis hole 67 is additionally provided with fixed station 63, for connecting arm.
As shown in fig. 7, being the schematic diagram of mast head.Mast head includes：Cuff 71, pillar 72, luffing pulley 73, cable rope
Bearing 74 and cable rope system arm 75.The cuff 71 is a metal valve jacket, which is provided with bolt hole 711, is bolted
It is sheathed on the top pole section of above-mentioned mast；The pillar 72 is a metallic cylinder, is fixed on the top surface of cuff 71, preferably,
Gusset 721 is welded between pillar 72 and cuff 71, and the shaft of pillar 72 is provided with steel wire rope through hole 722, the steel wire rope through hole
722 both ends open direction is relative with above-mentioned luffing hoist engine and arm position direction respectively；The luffing is slided
Wheel 73, is fixed on pillar 72, and the top tangent line of the pulley groove of luffing pulley 73 passes through steel wire rope through hole 722, luffing pulley
Lower section is provided with wire rope rope hole 731, preferably, being additionally provided with sliding axle 732 on luffing pulley 73, is connected to change by support
The periphery of width pulley 73, for by steel wirerope fastening in pulley；The cable rope bearing 74, its cable rope bearing inner race 741
It is fixed on the top of pillar 72；Cable rope system arm 75, at least 3 directions, uniformly it is laid in cable rope bearing outer ring 742
On, each cable rope system arm is provided with cable rope system hole 751, and the present embodiment is using 4 with cable rope system arm, you can fix well
Mast.
Preferably, the lower section of above-mentioned 722 both ends open of steel wire rope through hole is symmetrically arranged with pulley arm 76, above-mentioned luffing pulley
It is set to a pair, is separately positioned in 76 two side arms of pulley arm, the tangent line of the pulley groove of luffing pulley 73 just passes through steel wire rope through hole
722.
As shown in figure 8, being the use state figure of jib crane.Jib crane includes rotary table, mast, hangs
Arm, hoisting winding and luffing hoist engine.Mast also includes：Mast coxopodite, mast stage casing and mast head；Arm is also wrapped
Include：Arm coxopodite, arm stage casing and hang head.Mast coxopodite is erected on rotary table, and in mast, section sets up thereon, mast
The top of middle section is connected with mast head；Arm coxopodite is articulated in mast coxopodite, and in arm, section is connected with arm coxopodite, is hung head and is located at
The top that saves in arm；Hoisting winding is arranged on rotary table；Luffing hoist engine is arranged in mast coxopodite.
The ball seat of mast coxopodite is plugged in the ball cover of rotary table；Luffing hoist engine is fixed on the reversing frame of rotary table
On；The mast stage casing is spliced by standard pole section, and the mast head is fixed by bolts to the top of mast；The arm
It is spliced by standard pole section, the mast coxopodite is provided with axle bed, the arm coxopodite of the arm is provided with connecting shaft, the company
Spindle is connected with the axle bed, makes arm axle be connected to the mast coxopodite.Described hanging on head is additionally provided with hoisting sheave, luffing cunning
Wheel group and fixing hole, the hoisting structure of arm are identical with the structure of prior art hanging device, and here is not repeated here.
Jib crane also includes hoist rope a, variable-amplitude steel wire rope b and cable rope c, and their connected mode will
It is been described by conjunction with following assembling process.
The assembling process of jib crane is：The rotary table of jib crane, mast and arm have been spliced
Become, luffing hoist engine is fixed on rotary table, then variable-amplitude steel wire rope b thereon is led to the top of mast, through mast
Assembly pulley on head.4 cable rope c are worn and are connected in the cable rope system hole of mast head, three therein are fixed on bottom surface,
Fixing position should make mast erect which to tighten just, and the angle of cable rope is sufficiently large, it is sufficient to avoid the luffing half of arm
Footpath and tactical diameter scope.By the ball cover on the ball seat alignment rotary table of mast coxopodite, prop up the clamp on rotary table
Location-plate on mast coxopodite.That root cable rope remaining is slowly pulled back using a hoist engine being fixed on bottom surface,
Mast is slowly holded up until in vertical state, this root cable rope is fixed on the ground.Arm axle is connected to mast coxopodite, will
The above-mentioned variable-amplitude steel wire rope b passed through from mast head is wire-wrapped in and hangs head, and its termination is bolted on the wire rope rope hole of mast head.By its
Middle hoist engine is fixed in mast coxopodite, and hoist rope a thereon is hung on head around being connected on, and is connected with suspension hook.Using luffing
Arm pull-up had both been completed the assembling of jib crane by hoist engine.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation
Property concept, then can make other change and modification to these embodiments.So, claims are intended to be construed to include excellent
Select embodiment and fall into being had altered and changing for the scope of the invention.
Obviously, those skilled in the art can carry out the essence of various changes and modification without deviating from the present invention to the present invention
God and scope.So, if these modifications of the present invention and modification belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising these changes and modification.
Claims (8)
1. a kind of jib crane, which includes：Rotary table, mast, arm, hoisting winding and luffing hoist engine, its
It is characterised by,
The rotary table includes：
Underframe, the underframe include inside casing and housing, and the inside casing is welded by metalwork, and the housing is bolted
Periphery in the inside casing；
Gyration gear ring, is fixed on the inside casing；
Floating bearing, is made up of bearing inner race and bearing outer ring, and the bearing inner race is fixed on the inside casing, position with described
Gyration gear ring is coaxial, and the bearing outer ring is provided with reversing frame, and for connecting the mast and arm, the reversing frame is provided with
Saddle, the luffing hoist engine are arranged on the saddle, and the reversing frame bottom is provided with gripper shoe, and the gripper shoe is provided with
Motor axis hole；
And power set, including motor and gear, the motor is located on the bearing outer ring indirectly, and the motor is provided with
Ring flange, the ring flange are removably attached in the gripper shoe by bolt, and the armature spindle of the motor is through described
Motor axis hole, the gear are engaged with the gyration gear ring；
Wherein, the mast and arm are spliced by pole section, are provided with fixed station in mast coxopodite, the hoisting winding
It is arranged on the fixed station；
The gear is fixed on the armature spindle of the motor；Or the power set also include a reductor, the reductor
It is connected between the motor and gear, the reductor is used for the transmission between the motor and the gear.
2. jib crane as claimed in claim 1, it is characterised in that the gyration gear ring is ring gear.
3. jib crane as claimed in claim 1, it is characterised in that the gripper shoe and the floating bearing form
Individual protective cover, the gyration gear ring is covered on wherein；Ball seat is additionally provided with the gripper shoe, the ball seat is hemispherical, the mast
Bar coxopodite is provided with bulb, and the bulb is erected on the ball seat.
4. jib crane as claimed in claim 3, it is characterised in that be additionally provided with clamp in the gripper shoe, the mast
Bar coxopodite is provided with location-plate, and when the bulb is set up on the ball seat, the location-plate is blocked by the clamp just.
5. jib crane as claimed in claim 1, it is characterised in that the motor is the motor of remote-controlled start and stop.
6. jib crane as claimed in claim 1, it is characterised in that the arm is articulated in the mast coxopodite.
7. jib crane as claimed in claim 1, it is characterised in that the mast also includes mast head, is arranged on institute
The top of mast is stated, the mast head includes：
Cuff, is a metal valve jacket, is set on the top pole section of the mast；
Pillar, is fixed on the cuff top surface, which is provided with steel wire rope through hole, the opening direction of the steel wire rope through hole with described
Luffing hoist engine and arm position direction are relatively；
Luffing pulley, is fixed on the pillar, and the tangent line of its groove top passes through the steel wire rope through hole；
Cable rope bearing, the inner ring of cable rope bearing are fixed on the pillar；And
Cable rope system arm, is uniformly laid in the outer ring of the cable rope bearing by least three, and each cable rope system arm is provided with to be pulled
Wind rope system hole.
8. jib crane as claimed in claim 7, it is characterised in that the lower section of the steel wire rope through hole both ends open is right
Claim to be provided with pulley arm, the luffing pulley is a pair, is separately positioned on the pulley arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310271183.6A CN104276515B (en) | 2013-07-01 | 2013-07-01 | Jib crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310271183.6A CN104276515B (en) | 2013-07-01 | 2013-07-01 | Jib crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104276515A CN104276515A (en) | 2015-01-14 |
| CN104276515B true CN104276515B (en) | 2017-03-08 |
Family
ID=52251940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310271183.6A Active CN104276515B (en) | 2013-07-01 | 2013-07-01 | Jib crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104276515B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106938825A (en) * | 2017-05-17 | 2017-07-11 | 李阳 | It is a kind of can stable rotation and be difficult slide article jib crane |
| CN112110352A (en) * | 2020-08-20 | 2020-12-22 | 中联重科股份有限公司 | Mast crane and mounting method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US899758A (en) * | 1908-07-22 | 1908-09-29 | Fred R Patch | Derrick. |
| US1423376A (en) * | 1921-07-13 | 1922-07-18 | George F Watts | Derrick |
| JP2004244945A (en) * | 2003-02-14 | 2004-09-02 | Sumitomo (Shi) Construction Machinery Manufacturing Co Ltd | Revolving device of construction machine |
| CN201437648U (en) * | 2009-06-23 | 2010-04-14 | 浙江省送变电工程公司 | Holding pole |
| CN201545635U (en) * | 2009-11-19 | 2010-08-11 | 浙江省建设机械集团有限公司 | Holding rod with double flat arms |
| CN202672832U (en) * | 2011-10-12 | 2013-01-16 | 浙江省送变电工程公司 | Rotatable seat double rocker arm and inner/outer stay wire suspension mixed derrick |
| CN202988610U (en) * | 2012-10-31 | 2013-06-12 | 晋江市先锋机械制造有限公司 | Mooring rope type mast crane |
| CN102976217A (en) * | 2012-11-16 | 2013-03-20 | 无锡市华星船舶设备有限公司 | Crane slewing mechanism capable of adjusting gap between gears |
| CN203568723U (en) * | 2013-07-01 | 2014-04-30 | 国家电网公司 | Mast crane |
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2013
- 2013-07-01 CN CN201310271183.6A patent/CN104276515B/en active Active
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| CN104276515A (en) | 2015-01-14 |
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