CN109534192A - Crane arm locking mechanism, crane arm and crane - Google Patents
Crane arm locking mechanism, crane arm and crane Download PDFInfo
- Publication number
- CN109534192A CN109534192A CN201910009281.XA CN201910009281A CN109534192A CN 109534192 A CN109534192 A CN 109534192A CN 201910009281 A CN201910009281 A CN 201910009281A CN 109534192 A CN109534192 A CN 109534192A
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- Prior art keywords
- support
- working beam
- crane arm
- power rail
- arm
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- 230000007246 mechanism Effects 0.000 title claims abstract description 42
- 230000005484 gravity Effects 0.000 claims description 13
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 10
- 230000009471 action Effects 0.000 description 5
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 239000000758 substrate Substances 0.000 description 4
- 239000002360 explosive Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 241000219000 Populus Species 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- 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
- B66C23/64—Jibs
- B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
- B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
- B66C23/708—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic locking devices for telescopic jibs
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The present invention provides a kind of crane arm locking mechanism, including support, work package and driving assembly；The support is used to be fixed on the basic arm of crane arm；The work package and the support are rotatablely connected, and the driving component is connect with the work package, to drive the work package to rotate relative to the support, to connect or be detached from the joint arm of crane arm.Crane arm locking mechanism provided by the invention can lock joint arm in autocrane traveling process, avoid joint arm from leaping up arm to ensure the safety of autocrane；When crane arm work, and joint arm can be unlocked, be easy to use.
Description
Technical field
The present invention relates to autocrane technical field, in particular to a kind of crane arm locking mechanism, crane arm and rise
Heavy-duty machine.
Background technique
Currently, crane arm in autocrane traveling process when emergency stop often due to inertia cause two joint arms relative to
Basic arm travels forward, and is commonly called as " arm of leaping up ".The reason for this is that two, three, four, five joint arms are connected by oil cylinder with basic arm, work as automobile
The pressure of the offer of hydraulic system cannot be guaranteed that oil cylinder is locked when crane emergency stop, therefore inertia force pulls cylinder movement to cause
Two, three, four, five joint arms are stretched out, and cause the safety of autocrane low.
Summary of the invention
The purpose of the present invention is to provide a kind of crane arm locking mechanism, crane arm and cranes, to solve existing skill
There is the technical problem that arm of leaping up causes autocrane safety low in autocrane traveling process in the crane arm in art.
The present invention provides a kind of crane arm locking mechanism, including support, work package and driving assembly；The support
For being fixed on the basic arm of crane arm；
The work package and the support are rotatablely connected, and the driving component is connect with the work package, with driving
The work package is rotated relative to the support, to connect or be detached from the joint arm of crane arm.
Further, the work package includes locking piece and working beam；The first of the locking piece and the working beam
It holds to intersect and, the working beam and support rotation connection hook-shaped to be formed is set, and can be to the close or separate branch
The direction movement of seat；
For hooking joint arm, the driving component is connect the locking piece with the second end of the working beam.
Further, the driving component includes return unit, connecting rod and force piece；The return unit is connected to the branch
Between seat and the working beam, and it is located between the rotation connection of the locking piece and the working beam and the support, institute
State the wedge shaped setting of second end of working beam；
The wedge shaped setting of the first end of the connecting rod, the first end of the connecting rod are located at the second end of the working beam
To support to the working beam between the support, the force piece is connect with the connecting rod, to drive the connecting rod
It wedges or is detached between the second end of the working beam and the support.
Further, the force piece includes power rail and gravity block, and the power rail is vertically arranged, the gravity block with
The first end of the power rail connects, and the second end of the power rail is connect with the second end of the connecting rod；
Including locating part, the locating part is connect with the power rail, described in wedging in the first end of the connecting rod
When between the second end of working beam and the support, the power rail is limited.
Further, the connecting rod and the support are rotatablely connected, and the second end of the connecting rod is equipped with strip slide opening,
The second end of the power rail is connected with sliding block, and the sliding block is slidably installed in the slide opening.
Further, the locating part is the first arc-shaped slide rail being arranged on the support, first arc-shaped slide rail
One end and the power rail center of rotation face, the other end of first arc-shaped slide rail is located at the power rail far from institute
State the side of connecting rod.
Further, the support is additionally provided with the second arc-shaped slide rail, and the sliding block passes through the strip slide opening and is slidably installed in institute
It states on the second arc-shaped slide rail.
Further, the locking piece includes end plate and inclined plate, one end of the end plate and described the one of the working beam
End connection, and be vertically arranged with the working beam, one end of the inclined plate is connect with the other end of the end plate, the inclined plate
The other end is connect with the working beam.
It includes crane arm locking mechanism provided by the invention that the present invention, which provides a kind of crane arm,.
It includes crane arm provided by the invention that the present invention, which provides a kind of crane,.
The present invention provides a kind of crane arm locking mechanism, including support, work package and driving assembly；Support is used for
It is fixed on the basic arm of crane arm；Work package and support are rotatablely connected, and driving assembly is connect with work package, to drive work
Make the rotation of component relative seat, to connect or be detached from the joint arm of crane arm.When crane arm is in a horizontal position, automobile crane
Machine is during traveling, and when needing fixed to the relatively basic arm of joint arm, driving assembly driving work package is turned to be connected with joint arm
It connects, so that the relatively basic arm of the joint arm connecting with work package be made to fix, which is locked, to avoid the arm problem that leaps up, protect
Hinder the safety that autocrane is advanced；When crane arm, which raises, needs flexible work, driving assembly drives work package rotation
It is detached from joint arm, so that section be unlocked, is in crane arm and works normally.
Crane arm locking mechanism provided by the invention can lock joint arm in autocrane traveling process
It is fixed, avoid joint arm from leaping up arm to ensure the safety of autocrane；When crane arm work, and joint arm can be unlocked, side
Just it uses.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of crane arm locking mechanism according to an embodiment of the invention；
Fig. 2 is the explosive view of crane arm locking mechanism shown in FIG. 1；
Fig. 3 is the structural schematic diagram of crane arm crane arm locking mechanism shown in FIG. 1 when in a horizontal state；
Fig. 4 is that crane arm is in the structural schematic diagram for raising crane arm locking mechanism shown in FIG. 1 when state；
Fig. 5 is the structural schematic diagram for the crane arm locking mechanism that another embodiment provides according to the present invention；
Fig. 6 is the structural schematic diagram of crane arm according to an embodiment of the present invention.
In figure: 10- support；20- work package；30- driving assembly；40- locating part；11- sliding slot；12- block；
21- locking piece；22- working beam；23- pin shaft；31- return unit；32- connecting rod；33- force piece；34- spring；
331- power rail；332- gravity block；333- cam；334- protrusion；The first arc-shaped slide rail of 41-；The locking of 01- crane arm
Mechanism；02- basic arm；03- joint arm.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be to be connected directly, the connection inside two elements can also be can be indirectly connected through an intermediary.For this field
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Fig. 1 is the structural schematic diagram of crane arm locking mechanism according to an embodiment of the present invention；Fig. 2 is shown in FIG. 1
The explosive view of weighing arm locking mechanism；Fig. 3 is the knot of crane arm crane arm locking mechanism shown in FIG. 1 when in a horizontal state
Structure schematic diagram；Fig. 4 is that crane arm is in the structural schematic diagram for raising crane arm locking mechanism shown in FIG. 1 when state；Fig. 5 is
The structural schematic diagram for the crane arm locking mechanism that another embodiment provides according to the present invention；Fig. 6 is according to embodiments of the present invention
Crane arm structural schematic diagram.
As shown in Figure 1, the present invention provides a kind of crane arm locking mechanism, including support 10, work package 20 and driving
Component 30；Support 10 is used to be fixed on the basic arm of crane arm；Work package 20 and support 10 are rotatablely connected, driving assembly 30
It is connect with work package 20, to drive 20 relative seat 10 of work package to rotate, to connect or be detached from the joint arm of crane arm.
In the present embodiment, when crane arm is in a horizontal position, autocrane needs opposite to joint arm during traveling
When basic arm is fixed, driving assembly 30 drives work package 20 to turn to and connect with joint arm, to make and the work package 20
The relatively basic arm of the joint arm of connection is fixed, which is locked, to avoid the arm problem that leaps up, ensures the peace that autocrane is advanced
Quan Xing；When crane arm, which raises, needs flexible work, driving assembly 30 drives the rotation of work package 20 to be detached from joint arm, thus will
Section unlock is in crane arm and works normally.
Crane arm locking mechanism provided in this embodiment can lock joint arm in autocrane traveling process
It is fixed, avoid joint arm from leaping up arm to ensure the safety of autocrane；When crane arm work, and joint arm can be unlocked, side
Just it uses.
It should be noted that crane arm may include two joint arms, three joint arms, four joint arms or five joint arms other than basic arm
Etc. single oil cylinder, work package 20 can be with the company of one or more in the single oil cylinders such as three joint arms, four joint arms or five joint arms
It connects, optionally, work package 20 is connect with two joint arms, because the arm problem that leaps up of two joint arms is more serious, in the row of autocrane
Into in the process, the relatively basic arm of two joint arms is fixed, it will be able to arm of leaping up is solved the problems, such as substantially, thus in the premise to guarantee safety
Under, the structure of locking mechanism can be simplified, make locking mechanism compound with regular structure.
Wherein, support 10 for installment work component 20 one side be mounting surface, work package 20 can with the peace
The parallel rotation in surface in dress face, that is, the center of rotation of work package 20 is vertical with the mounting surface, at this point, crane arm is locked
Determining the both ends that mechanism is mounted on the shaft section of basic arm makes working group so as to make work package 20 produce joint arm by both ends
Part 20 and joint arm are detached from.
At this point, the structure type of work package 20 and the structure type of driving assembly 30 can be a variety of, and such as: working group
Part 20 includes substrate and is connected to one end plate of substrate, and plate intersect setting with substrate, and driving assembly 30 is motor, motor and
Substrate connection drives clamping plate rotation, so that plate be driven to rotate, so that plate be made to catch on joint arm, or is arranged in joint arm and inserts
Slot, plate are inserted into slot.
Optionally, as depicted in figs. 1 and 2, work package 20 includes locking piece 21 and working beam 22；Locking piece 21 and work
The first end intersection setting of bar 22 is hook-shaped to be formed, and working beam 22 and support 10 are rotatablely connected, and can be to close or separate
The direction of support 10 moves；For hooking joint arm, driving assembly 30 is connect locking piece 21 with the second end of working beam 22.
In the present embodiment, working beam 22 can be rotated to the direction close to or far from support 10, that is, working beam 22 is hanging down
Directly in the rotation in surface of the mounting surface, the center of rotation of working beam 22 is parallel with the mounting surface of support 10.Sticking department is opposite
Joint arm is lifted to separate with joint arm, so as to not limited by installation site, can be located at the middle part of the shaft section of crane arm.
Wherein, the structure type of locking piece 21 can be a variety of, such as: rod-shaped, plate dress, blocky or frame structure etc..
Locking piece 21 at an acute angle can be arranged with working beam 22, and the first end of one end of locking piece 21 and working beam 22 connects
It connects, the other end is arranged close to working beam 22.Optionally, locking piece 21 and working beam 22 are at right angles arranged, that is, locking piece 21 and work
Make the L-shaped setting of bar 22, it can be more reliable with the connection of joint arm.
The structure type of driving assembly 30 can be a variety of, such as: driving assembly 30 includes electric telescopic rod and drive rod,
Electric telescopic rod is fixed on support 10, and the motion bar of electric telescopic rod is fixedly connected with one end of drive rod, drive rod it is another
One end is fixedly connected with the second end of working beam 22, and the middle part of working beam 22 is rotatablely connected by pin shaft 23 and support 10, electronic
Telescopic rod drives drive rod linear motion, to lift or put down the second end of working beam 22, when drive rod is by working beam
When 22 second end is lifted, the first end of working beam 22 is put down, i.e. locking piece 21 puts down joint arm hooking relatively basic arm
Locking, when drive rod puts down the second end of working beam 22, the second end of working beam 22 is lifted, i.e., locking piece 21 lifts, from
And it is detached from locking piece 21 and joint arm, so that joint arm be unlocked.
Optionally, driving assembly 30 includes return unit 31, connecting rod 32 and force piece 33, and return unit 31 is connected to support 10
Between working beam 22, and it is located between the rotation connection of locking piece 21 and working beam 22 and support 10, the of working beam 22
The wedge shaped setting in two ends；The wedge shaped setting of the first end of connecting rod 32, the first end of connecting rod 32 are located at the second of working beam 22
To support to working beam 22 between end and support 10, force piece 33 connect with connecting rod 32, wedged with drive connection bar 32 or
It is detached between the second end and support 10 of working beam 22.
It should be noted that the wedging end of connecting rod 32 can smoothly be inserted into working beam 22 wedging end close and between, then
Along direction of insertion, the tip at the wedging end of connecting rod 32 is in the downstream at the thick end of connecting rod 32, the point at the wedging end of working beam 22
End is in the upstream at the thick end of working beam 22, it is, the tip of connecting rod 32 is introduced between the tip support 10 of working beam 22.
In the present embodiment, when crane arm is located at horizontal direction, when being locked in autocrane traveling process to joint arm,
Between the first end of 33 drive connection bar 32 of force piece, that is, tapered end insertion working beam 22 second end, that is, tapered end and support 10
To abut with the tapered end of working beam 22, the tapered end of connecting rod 32 props the tapered end of working beam 22, to make locking piece
21 hook joint arm；When crane arm needs to raise flexible, 33 drive connection bar 32 of force piece moves the wedge so that connecting rod 32
The tapered end of shape end and working beam 22 is detached from, thus make between the tapered end of working beam 22 and support 10 there are space, this
When the push the work forward first end of bar 22 of reset spring lift, be detached from joint arm.This 30 structure of driving assembly and work package 20
Connection it is compact, it is small in size to occupy little space to make the compact-sized of crane arm locking mechanism.
Wherein, return unit 31 can be the elastic materials such as silica gel, rubber, preferably use spring, reset reliable.
There are many modes between the tapered end and support 10 of tapered end wedging (insertion) working beam 22 of connecting rod 32, example
Such as: connecting rod 32 is slidably installed on support 10, the wedging end of connecting rod 32 can slide into or out working beam 22 wedging end and
Between support 10.
At this point, the structure type of force piece 33 can be a variety of, and such as: electric telescopic rod, hydraulic cylinder or rack-and-pinion
Component etc. can be realized the device of straight reciprocating motion, can drive connection bar 32 on support 10 along the tapered end of connecting rod 32
The sliding of wedging (insertion) direction, to make the tapered end of connecting rod 32 that can abut with the tapered end face of working beam 22 or take off
From.
Optionally, as shown in figure 5, force piece 33 includes power rail 331 and gravity block 332, power rail 331 is vertically arranged,
Gravity block 332 is connect with the first end of power rail 331, and the second end of power rail 331 is connect with the second end of connecting rod 32；Lifting
Arm locking mechanism includes the locating part 40 being arranged on the support, and locating part 40 is connect with power rail 331, and the limit
Part and the connecting portion of the power rail are in the opposite support movement track of the power rail close to the one of the working beam
End limits power rail 331 when between the second end and support 10 of the first end of connecting rod 32 wedging working beam 22.
Sliding slot 11 is provided on support, connecting rod is slidably installed in sliding slot 11, and the second end of power rail is fixedly connected with cam
333, the second end of connecting rod is arranged in circular arc to abut with cam, and block 12 is arranged on the support, is arranged in connecting rod convex
Plate, between block and protrusive board be arranged spring 34, when crane arm when in the horizontal position, locating part is abutted with power rail, general
Power rail positioning, the second end of connecting rod are abutted with the top of cam, and the wedging end of connecting rod is abutted with the wedging end of working beam,
Locking piece locks joint arm, and spring is in compressive state at this time, when crane arm lifts, power rail to far from locating part direction
Rotation, the second original text of connecting rod
It should be noted that support, in basic arm rotation process, the first end of power rail connects gravity block, in weight
It is vertical to keep under the action of power block, so that gravity block relative seat rotates, the position far from its center of rotation of power rail is opposite
Support is along Circular Sliding, and therefore, the motion profile of the relative seat of power rail is circular arc line, as when hand of a clock.Limit
Part is located at one end close to the working beam of the relatively described support movement track of power rail, as shown in Figure 1-Figure 3, locating part
Positioned at the left side of power rail.
When crane arm when in the horizontal position, locating part is just resisted with power rail, prevent power rail connecting rod work
Under firmly, continues relative seat and turn left.When crane arm lifts, the second end of connecting rod is slided to cam top, and
Retraction is detached from working beam under the action of spring.
At this point, crane arm is suitable for that the side for being mounted on crane arm (when crane arm normal use, has top with locking mechanism
Portion, bottom and be located in the middle side).
Optionally, connecting rod 32 and support 10 are rotatablely connected, the rotation insertion of wedging end or disengaging work of connecting rod 32
The wedging end of bar 22 and support 10, at this point, force piece 33 can be the swinging structures such as oscillating motor.
Optionally, as shown in Figure 1, force piece 33 includes power rail 331 and gravity block 332, power rail 331 is vertically arranged,
Gravity block 332 is connect with the first end of power rail 331, and the second end of power rail 331 is connect with the second end of connecting rod 32；Lifting
Arm locking mechanism includes the locating part 40 being arranged on the support, and locating part 40 is connect with power rail 331, and the limit
Part and the connecting portion of the power rail are in the opposite support movement track of the power rail close to the one of the working beam
End limits power rail 331 when between the second end and support 10 of the first end of connecting rod 32 wedging working beam 22.Even
The second end of extension bar 32 is equipped with strip slide opening, and the second end of power rail 331 is connected with sliding block, and sliding block is slidably installed in slide opening.At this point,
Crane arm is suitable for that the side for being mounted on crane arm (when crane arm normal use, has top, bottom and is located at locking mechanism
Between side).
In the present embodiment, the gravity of gravity block 332 is larger, and power rail 331 and support 10 are rotatablely connected, then can ensure dynamic
Power part 33 is vertical always, and gives the sagging pulling force of connector one.The second end of power rail 331 and the second end of connecting rod rotate and connect
It connects.
As shown in Figure 1, locking piece 21 is inserted into the groove between joint arm and joint arm when crane arm is when in a horizontal state,
The wedging end of connecting rod 32 is abutted with the wedging end of working beam 22 to support working beam 22, and return unit 31 is in compressive state,
Power rail 331 is vertical with connecting rod 32, and power rail 331 is connect with locating part 40.Locking piece 21 locks joint arm at this time, due to limit
Position part 40 limits power rail 331, fixes its position, to make the position of connecting rod 32 fix, to make connecting rod 32
The position at wedging end is fixed, so that making the position fixation at the wedging end of working beam 22 can not rotate, to make working beam 22 can not
Rotation, and then rotate locking piece 21 can not, even if then under the action of joint arm the power forward extended out occurs suddenly, locking level
Without departing from joint arm, to ensure locking effect.
As shown in figure 4, support 10 is lifted as basic wall is rotated up, thus connecting rod when crane arm raises elongation
32 lift as support 10 is rotated up, and power rail 331 remains vertically under the action of gravity block 332, power rail 331
Relative seat 10 rotates, and then relative seat 10 slides the first end and second end of power rail 331 along arc track；Power rail
331 second end is connect by sliding block with the strip sliding block in connecting rod 32, then power rail 331 can give the second of connecting rod 32
A downward pulling force is held, is lifted so that the first end of connecting rod 32 be made to wedge end and be rotated up, thus with working beam 22
Tapered end is detached from；The tapered end of working beam 22 loses support, and there are spaces between support 10, and return unit 31 pushes
The first end of working beam 22 is rotated to the direction far from joint arm, and the wedging end of working beam 22 is moved to the direction close to support 10,
To which locking piece 21 is detached from by joint arm, unlock is realized.
What crane arm locking mechanism provided in this embodiment used makes pure mechanic structure, without electric device, lock,
It unlocks reliable；And can be realized automatic locking and unlocking, clever structure is at low cost.
Wherein, the structure type of locating part 40 can be a variety of, such as the side of the close work package in power rail 331 is set
Block, veneer or lever etc. are set, power rail 331 is stopped.
Optionally, locating part 40 is the first arc orbit, second end relative seat of first arc orbit along power rail 331
10 motion profile extends.And first arc-shaped slide rail 41 one end and power rail 331 center of rotation face, so as to rise
When weighing arm is in horizontality and needs lock state, one end of the first arc orbit stops power rail 331.First arc
The other end of sliding rail 41 is located at side of the power rail 331 far from connecting rod 32.
Wherein, the first arc-shaped slide rail 41 can be sliding slot, and optionally, the first arc-shaped slide rail 41 can be slide opening, on power rail 331
Setting protrusion 334, protrusion 334 is slidably installed in slide opening, and the processing is simple.
First arc-shaped slide rail 41 can not only be defined the position of power rail 331, additionally it is possible to being somebody's turn to do for power rail 331
The sliding of relative seat 10 is defined out, keeps the movement of power rail 331 steady.
Further, support 10 is additionally provided with the second arc-shaped slide rail, and sliding block passes through strip slide opening and is slidably installed in the second arc-shaped slide rail
On.The present embodiment keeps the sliding of power rail 331 more stable.
Further, locking piece 21 includes end plate and inclined plate, and one end of end plate is connect with one end of working beam 22, and and work
Make bar 22 to be vertically arranged, one end of inclined plate and the other end of end plate connect, and the other end of inclined plate is connect with working beam 22.This implementation
In example, the wedge shaped setting of locking piece 21, then when crane arm lifts, return unit 31 does not release locking piece 21 thoroughly, then exists
Under the action of joint arm, 21 poplar of locking piece can be detached from joint arm.
As shown in fig. 6, it includes crane arm locking mechanism 01 provided by the invention that the present invention, which provides a kind of crane arm,.Support
10 are fixed on basic arm 02, and work package 20 is connect with joint arm 03
Crane arm provided in this embodiment can effectively prevent altering arm phenomenon, ensure autocrane so as to ensure
Safety.
The present invention provides a kind of crane, including crane arm provided by the invention.Crane safety provided in this embodiment
Property it is high.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of crane arm locking mechanism characterized by comprising support, work package and driving assembly；The support
For being fixed on the basic arm of crane arm；
The work package and the support are rotatablely connected, and the driving component is connect with the work package, described in driving
Work package is rotated relative to the support, to connect or be detached from the joint arm of crane arm.
2. crane arm locking mechanism according to claim 1, which is characterized in that the work package include locking piece and
Working beam；The locking piece intersects with the first end of the working beam is arranged, the working beam and the support hook-shaped to be formed
Rotation connection, and can be moved to the direction close to or far from the support；
For hooking joint arm, the driving component is connect the locking piece with the second end of the working beam.
3. crane arm locking mechanism according to claim 2, which is characterized in that the driving component include return unit,
Connecting rod and force piece；The return unit is connected between the support and the working beam, and is located at the locking piece and institute
Between the rotation connection for stating working beam and the support, the wedge shaped setting of the second end of the working beam；
The first end of the wedge shaped setting of the first end of the connecting rod, the connecting rod is located at second end and the institute of the working beam
It states to be supported to the working beam between support, the force piece is connect with the connecting rod, to drive the connecting rod to wedge
Or it is detached between the second end and the support of the working beam.
4. crane arm locking mechanism according to claim 3, which is characterized in that the force piece includes power rail and again
Power block, the power rail are vertically arranged, and the gravity block is connect with the first end of the power rail, the second end of the power rail
It is connect with the second end of the connecting rod；
Including the locating part being arranged on the support, the locating part is connect with the power rail, and the locating part and institute
The connecting portion of power rail is stated in one end close to the working beam of the relatively described support movement track of the power rail, with
When the first end of the connecting rod is wedged between the second end of the working beam and the support, the power rail is limited.
5. crane arm locking mechanism according to claim 4, which is characterized in that the connecting rod and the support rotate
Connection, the second end of the connecting rod are equipped with strip slide opening, and the second end of the power rail is connected with sliding block, and the sliding block cunning is set
In the slide opening.
6. crane arm locking mechanism according to claim 5, which is characterized in that the locating part is to be arranged in the branch
The first arc-shaped slide rail on seat, one end of first arc-shaped slide rail and the center of rotation face of the power rail, described first
The other end of arc-shaped slide rail is located at side of the power rail far from the connecting rod；
The power rail is equipped with protrusion, and the protrusion is slidably installed in first arc-shaped slide rail.
7. crane arm locking mechanism according to claim 5, which is characterized in that it is sliding that the support is additionally provided with the second arc
Rail, the sliding block pass through the strip slide opening and are slidably installed on second arc-shaped slide rail.
8. the crane arm locking mechanism according to any one of claim 2-7, which is characterized in that the locking piece packet
End plate and inclined plate are included, one end of the end plate is connect with described one end of the working beam, and is vertically arranged with the working beam,
One end of the inclined plate is connect with the other end of the end plate, and the other end of the inclined plate is connect with the working beam.
9. a kind of crane arm, which is characterized in that including crane arm locking mechanism such as of any of claims 1-8.
10. a kind of crane, which is characterized in that including crane arm as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910009281.XA CN109534192B (en) | 2019-01-04 | 2019-01-04 | Locking mechanism for crane boom, crane boom and crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910009281.XA CN109534192B (en) | 2019-01-04 | 2019-01-04 | Locking mechanism for crane boom, crane boom and crane |
Publications (2)
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| CN109534192A true CN109534192A (en) | 2019-03-29 |
| CN109534192B CN109534192B (en) | 2024-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910009281.XA Active CN109534192B (en) | 2019-01-04 | 2019-01-04 | Locking mechanism for crane boom, crane boom and crane |
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| CN (1) | CN109534192B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111747324A (en) * | 2020-07-09 | 2020-10-09 | 三一汽车起重机械有限公司 | Locking mechanism, crane boom and crane |
| CN115043337A (en) * | 2022-08-15 | 2022-09-13 | 徐州重型机械有限公司 | Boom system, crane and boom system control method |
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| JP2005314110A (en) * | 2004-03-31 | 2005-11-10 | Kobelco Cranes Co Ltd | Telescopic boom |
| CN101537979A (en) * | 2009-04-14 | 2009-09-23 | 三一汽车制造有限公司 | Locking pin insertion and extraction device and crane with same |
| CN102756979A (en) * | 2012-07-25 | 2012-10-31 | 徐州重型机械有限公司 | Crane and hydraulic control system for telescopic mechanism of crane |
| JP2015189543A (en) * | 2014-03-28 | 2015-11-02 | 三井造船株式会社 | quay crane |
| CN209242532U (en) * | 2019-01-04 | 2019-08-13 | 三一汽车起重机械有限公司 | Crane arm locking mechanism, crane arm and crane |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2005314110A (en) * | 2004-03-31 | 2005-11-10 | Kobelco Cranes Co Ltd | Telescopic boom |
| CN101537979A (en) * | 2009-04-14 | 2009-09-23 | 三一汽车制造有限公司 | Locking pin insertion and extraction device and crane with same |
| CN102756979A (en) * | 2012-07-25 | 2012-10-31 | 徐州重型机械有限公司 | Crane and hydraulic control system for telescopic mechanism of crane |
| JP2015189543A (en) * | 2014-03-28 | 2015-11-02 | 三井造船株式会社 | quay crane |
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| CN111747324A (en) * | 2020-07-09 | 2020-10-09 | 三一汽车起重机械有限公司 | Locking mechanism, crane boom and crane |
| CN111747324B (en) * | 2020-07-09 | 2022-03-22 | 三一汽车起重机械有限公司 | Locking mechanism, crane boom and crane |
| CN115043337A (en) * | 2022-08-15 | 2022-09-13 | 徐州重型机械有限公司 | Boom system, crane and boom system control method |
| CN115043337B (en) * | 2022-08-15 | 2023-08-11 | 徐州重型机械有限公司 | Arm support system, crane and arm support system control method |
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| Publication number | Publication date |
|---|---|
| CN109534192B (en) | 2024-03-05 |
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