CN109335974A - A kind of telescoping boom and crane - Google Patents
A kind of telescoping boom and crane Download PDFInfo
- Publication number
- CN109335974A CN109335974A CN201811579829.6A CN201811579829A CN109335974A CN 109335974 A CN109335974 A CN 109335974A CN 201811579829 A CN201811579829 A CN 201811579829A CN 109335974 A CN109335974 A CN 109335974A
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- rope
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- reel
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- 230000001360 synchronised effect Effects 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 4
- 230000014759 maintenance of location Effects 0.000 claims description 4
- 238000011084 recovery Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 5
- 230000007246 mechanism Effects 0.000 abstract description 4
- 230000003028 elevating effect Effects 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 41
- 238000010586 diagram Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004064 recycling 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
- B66C23/62—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
- B66C23/705—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic telescoped by hydraulic jacks
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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
- B66C2700/00—Cranes
- B66C2700/03—Cranes with arms or jibs; Multiple cranes
Abstract
The invention discloses a kind of telescoping booms comprising is successively set with the N joint arm of setting from outside to inside, further includes: semi-girder reel, contracting arm reel, semi-girder rope, contracting arm rope and boom locking device；One end of semi-girder rope is wound on semi-girder reel, and the other end is fixed on the root of N joint arm, and semi-girder rope successively bypasses whole rope guides of the rope guide in first segment arm head portion, the second section to N-1 joint arm head and root；One end of contracting arm rope is wound on contracting arm reel, and the other end is fixed on N joint arm；Boom locking device is for locking or unlocking the relative position of two adjacent sections arm.Telescoping mechanism of the present invention is not subject to hoist load, it can be achieved that telescopic arm random order is flexible, and telescopic oil cylinder can be also set up on boom, realizes brachium step-less adjustment and flexible with carrying.The limitation for breaking existing flexible technology, greatly simplifies telescoping mechanism, has expanded the function of telescoping boom, the elevating capacity and efficiency of lift crane.
Description
Technical field
The present invention relates to the telescoping boom technical field of crane more particularly to a kind of telescoping booms and crane.
Background technique
A kind of flexible at present there are mainly two types of form, single cylinder being suitable for hoister in large tonnage of telescopic arm of crane
Bolt stretch mode, for this mode since oil cylinder is not subject to hoisting weight, oil cylinder can be made thinner, compact-sized.Single-cylinder bolt
The flexible sequence for also helping optimization arm section, improves the lifting capacity of boom.However the shortcomings that single-cylinder bolt is that speed is slow, processing
Required precision is high, and control is complicated, inconvenience maintenance.Another telescopic fashion is linked by telescopic oil cylinder and rope, realizes that multistage is hung
Arm synchronization telescope, such as patent document 1(Publication No.: CN101575075A) and patent document 2(Publication No.:
CN202481966U).This is a kind of conventional telescopic mode, this simple speed of mode principle is fast, is in current industry still extensive
The flexible technology used.This telescopic oil cylinder adds the stretch mode of rope, due to not setting between two neighboring adjacent expansion arm
Locking device is set, oil cylinder and rope during carrying is hung and still suffers from the huge axial force as caused by hoist.Therefore telescopic oil cylinder is straight
Diameter is big, rope number of share of stock is more, and inside arrangement is complicated, and arm cylinder optimization is difficult, and elevating capacity is limited.In addition, existing telescopic oil cylinder adds rope
In the telescoping boom of row, when the quantity of telescopic arm is greater than 4, it usually needs two oil cylinders are realized, such as patent document 2(public
The number of opening are as follows: CN202481966U) disclosed in crane arm comprising two oil cylinders, the second oil cylinder are located at third joint arm and
Between four joint arms, in the case where oil cylinder bears hoist, the weight of oil cylinder itself is also larger, to increase boom self weight, reduces
Lifting capacity.
Summary of the invention
For in existing hoisting arm expansion technology, oil cylinder adds rope telescopic device limited in the presence of carrying, and combination is simple, and
The problems such as single-cylinder bolt mechanism is complicated, cumbersome, inefficiency, the present invention provide a kind of telescoping boom, simplify telescoping boom
Stretching structure, improve the flexibility of hoisting arm expansion.Specific technical solution is as follows.
A kind of telescoping boom comprising be successively set with the N joint arm of setting from outside to inside, N is more than or equal to 3, most external the
One joint arm, penetralia are N joint arm, which is characterized in that further include: semi-girder reel, contracting arm reel, semi-girder rope, contracting arm rope, rope
Guider and boom locking device；
The semi-girder reel and contracting arm reel are set to the turntable of the first joint arm or crane；
First segment arm head portion and the second section to the head of N-1 joint arm and root are provided with the rope guide,
One end of the semi-girder rope is wound on the semi-girder reel, and the other end is fixed on the root of the N joint arm, the semi-girder rope
Successively around first segment arm head portion rope guide and second section to the head and root of N-1 joint arm
Whole rope guides；Wherein, root is one end that a joint arm stretches out direction upstream side, and head is that a joint arm stretches out direction downstream
One end of side.
One end of the contracting arm rope is wound on the contracting arm reel, and the other end is fixed on the N joint arm；
The boom locking device is set in any one joint arm in two adjacent sections arm or is arranged in simultaneously two adjacent sections arm
On, it is locked or unlocked for the relative position to two adjacent sections arm.
Further, the semi-girder reel and contracting arm reel are driven by same drive motor or respectively by different driving horses
Up to driving.When semi-girder reel and contracting arm reel are driven by different drive motors, the semi-girder reel is synchronous with contracting arm reel
The coiling direction of rotation, the semi-girder rope and the contracting arm rope is opposite.As a drive motor rotates, semi-girder reel and contracting arm reel
Synchronous rotary, when semi-girder reel rope closing, contracting arm reel puts rope;When contracting arm reel rope closing, semi-girder reel puts rope.
Further, the rope guide is pulley or arcuate array shaft or camber guide groove.
Further, the boom locking device is bolt-locking device, and the bolt-locking device includes being set to appoint
The bolt in a joint arm anticipated in two adjacent sections arm is provided in another joint arm in two joint arm of arbitrary neighborhood and inserts with described
Sell the blocking portion matched；Preferably, the blocking portion is pin hole or boss.Wherein, bolt can be by electric power or hydraulic
Bolt is inserted into pin hole or is extracted from pin hole by driving, realizes the locking or unlocking of two adjacent sections arm (or bolt
Realization locking is abutted with boss, bolt disengages/separate realization unlock with boss).
Further, the boom locking device includes flashboard locking device and auxiliary bolt locking device, the flashboard
Locking device is for locking or unlocking the retraction of the inner arm in two adjacent sections arm；The auxiliary bolt is used for adjacent two
The stretching of inner arm in joint arm is locked or unlocked；The auxiliary bolt locking device includes being set to two joint arm of arbitrary neighborhood
In a joint arm on auxiliary bolt, be provided with and the auxiliary bolt phase in another joint arm in two joint arm of arbitrary neighborhood
The secondary retention portion of cooperation；Preferably, the secondary retention portion is pin hole or boss.
Further, the telescoping boom is additionally provided with telescopic oil cylinder, and the telescopic oil cylinder includes cylinder barrel and cylinder rod, described
Cylinder rod is connected with the joint arm in two joint arm of arbitrary neighborhood, another joint arm in the cylinder barrel and two joint arm of arbitrary neighborhood
It is connected.Wherein, the telescopic oil cylinder can be set in the inside of arm cylinder, also can be set in the outside of arm cylinder.
Further, the telescoping boom can successively be stretched out from the second joint arm to N joint arm, and can be in any brachium
Adjustment is arbitrarily designated the overhang or amount of recovery of arm section under operating condition.
The invention further relates to a kind of cranes, with above-mentioned telescoping boom.
Using above-mentioned technical solution, the present invention can realize that the telescoping boom with single oil cylinder is stretched using rope drum
Contracting, significantly simplifies the structure of boom, reduces the semi-girder power of boom.Specific scaling operation process is as follows: returning completely
Under contracting state, each arm section is locked, when needing semi-girder, can release between the one or two arm end since the second section telescopic arm
Locking, semi-girder rope recycles under the winding of semi-girder reel, contracting arm rope contracting arm reel synchronization releasing under unreeling effect, due to it
It is mutually locking state between remaining arm section, relative motion will not be generated, (third joint arm is extremely by the pull-out of semi-girder rope for only the second joint arm
The relative position of N joint arm and the second joint arm is constant).It is locked when the second joint arm extension elongation makes it, according to
Sequence releases the locking (the primary locking for only releasing a joint arm) for being left each arm section, drives reel withdrawing rope, can sequentially realize each
The stretching of arm section locks, when semi-girder in place when, each arm section is in lock state, can hoist operation.It should be noted that
Since being fully retracted state, the locking of each joint arm can sequentially be released, semi-girder rope recycles under the winding of semi-girder reel, can
Realize that boom step by step substantially stretch out without a break by sequence.When telescoping boom bounces back, the locking for needing the arm section to bounce back is released, remaining
Arm section is in the lock state, and contracting arm rope recycles under the winding of contracting arm reel, and semi-girder rope unreels effect similarly hereinafter semi-girder reel
Step is released, and is realized the retraction of a wherein joint arm, the retraction of other arm sections is sequentially completed again later, until telescoping boom reaches complete
Retracted state.It should be noted that the stretching of telescoping boom, it can not be according to the second joint arm, third joint arm ..., N joint arm
Sequence stretched out (retraction sequence to anti-), can first be stretched out that (arm for needing to stretch out is in unlock to any one joint arm
State), remaining another joint arm of reselection is stretched out, and when retraction is also such.Therefore, stretching for telescoping boom is greatly improved
Contracting flexibility changes the stretch mode that existing telescoping boom must be stretched out or be bounced back according to certain sequence.Work as boom
When in any working arm long status, to change the extension elongation of certain arm section, as long as releasing the locking of the arm section, reel is driven
The flexible of the arm section can be realized in folding and unfolding rope.
In above scheme, telescopic oil cylinder is simultaneously operable with driving reel (semi-girder reel and contracting arm reel), can both be realized
The step-less adjustment of brachium, and band load can stretch under any brachium operating condition.For example, telescopic oil cylinder includes cylinder barrel and cylinder rod, cylinder rod
It is connected with the first joint arm, cylinder barrel is connected with the second joint arm, and when work, the flexible of the second joint arm can be by flexible rope and telescopic oil cylinder
It is common to complete, and can be flexible with carrying in the telescopic extensions of two joint arms, it can also arrange in pairs or groups with remaining arm section and realize the stepless-adjustment of brachium
Section.
The present invention drives hoisting arm expansion on the basis of introducing boom locking device, using reel folding and unfolding rope, and existing
The oil cylinder of technology adds rope stretch mode to compare, and driving force substantially reduces, compared with single-cylinder bolt stretch mode, due to both can be from
Under supreme sequence step by step stretch without a break, and can adjust in real time to the overhang of fixed arm section, stretch under any brachium operating condition
The continuity of process is greatly improved with flexibility.The present invention is conducive to optimize the flexible sequence of arm section, telescoping mechanism (rope) when operation
It does not carry, improves elevating capacity.In addition the present invention can add telescopic oil cylinder on boom cylinder, can both realize the stepless of brachium
It adjusts, and band load can stretch under any brachium operating condition.This fundamentally breaks the limitation of existing flexible technology, is greatly promoted
The function of the telescoping boom of crane.
Detailed description of the invention
Fig. 1 is the schematic diagram of the telescoping boom of the embodiment of the present invention 1 (boom is in and is fully retracted state)；
Fig. 2 is the schematic diagram of the telescoping boom of the embodiment of the present invention 1 (boom is in fully extended state)；
Fig. 3 is the schematic diagram of the telescoping boom of the embodiment of the present invention 1 (third joint arm, the 4th joint arm are in stretching state)；
Fig. 4 is the schematic diagram that boom locking device is installed on telescoping boom；
The schematic diagram of Fig. 5 arcuate array shaft；
Fig. 6 is the schematic diagram of the telescoping boom of the embodiment of the present invention 2 (boom is in and is fully retracted state)；
Fig. 7 is the schematic diagram of the telescoping boom of the embodiment of the present invention 2 (boom is in fully extended state)；
Fig. 8 is the schematic diagram of the telescoping boom of the embodiment of the present invention 3 (boom is in fully extended state).
In figure: the first joint arm I, the second joint arm II, third joint arm III, the 4th joint arm IV, the 5th joint arm V, semi-girder rope 1, contracting
Arm rope 2, boom locking device 3, bolt-locking device 3.1, flashboard locking device 3.2, telescopic oil cylinder 4, semi-girder reel 5, contracting arm
Reel 6, oil pipe or cable 7, arcuate array shaft 8.
Specific embodiment
Present invention is further described in detail with reference to the accompanying drawing.
Embodiment 1
Referring to Fig. 1-3, a kind of telescoping boom comprising be successively set with from outside to inside the first joint arm I of setting, the second joint arm II,
Third joint arm III, the 4th joint arm IV and the 5th joint arm V, further includes: semi-girder reel 5, contracting arm reel 6, semi-girder rope 1, contracting arm rope 2
With boom locking device 3；Semi-girder reel 5 and contracting arm reel 6 are set to the turntable of the first joint arm I or crane, i.e. semi-girder is rolled up
Cylinder 5 and contracting arm reel 6 and the relative position of the first joint arm I immobilize；
First joint arm, I head is provided with rope guide, the head of second joint arm II, third joint arm III, the 4th joint arm IV
It is also provided with rope guide with root, one end of semi-girder rope 1 is wound on semi-girder reel 5, and the other end is fixed on described
The root of five joint arms V, semi-girder rope 1 successively bypass the rope of the rope guide on I head of the first joint arm, II root of the second joint arm
Guider, the rope guide on II head of the second joint arm, the rope guide of III root of third joint arm, third joint arm III head
Rope guide, IV root of the 4th joint arm IV head of rope guide and the 4th joint arm rope guide；Root is arm section
One end of direction upstream side is stretched out, head is one end that arm section stretches out direction downstream side；
One end of contracting arm rope 2 is wound on contracting arm reel 6, and the other end is fixed on V root of the 5th joint arm；
Boom locking device 3 is set in any one joint arm in two adjacent sections arm or is arranged on two adjacent sections arm simultaneously,
It is locked or unlocked for the relative position to two adjacent sections arm.
Preferably, referring to Fig. 1, Fig. 5, rope guide is pulley or arcuate array shaft or camber guide groove.It is stretched with ensureing
Arm rope 1 is slided in rope guide with smaller resistance.
Preferably, referring to fig. 4, boom locking device 3 can use common bolt-locking device 3.1.Bolt-locking device
3.1 include the bolt being set in the first joint arm, the pin hole with bolt cooperation is provided in the second joint arm, wherein bolt can
Bolt to be inserted into pin hole or is extracted from pin hole, realizes the lock of two adjacent sections arm by electric power or hydraulic-driven
Fixed or unlock；Oil pipe or cable 7 are arranged in arm cylinder to transmit electric power or hydraulic oil.It should be noted that pin hole can also be with
Boss is replaced with, when bolt is abutted with boss, the second joint arm retraction can be limited and/or stretched out, realize the lock of the second joint arm
It is fixed；After bolt retracts, bolt separates the unlock for realizing the second joint arm with boss.
Preferably, referring to fig. 4, boom locking device 3(is used to lock the boom of the second joint arm and third joint arm relative position
Locking device) may include flashboard locking device 3.2 and bolt-locking device 3.1(auxiliary bolt locking device example), institute
Flashboard locking device 3.2 is stated to be used to lock or unlock the retraction of the inner arm (third joint arm) in two adjacent sections arm, it is described
Flashboard locking device 3.2 can use such as patent document 4(Publication No.: CN108116995A) disclosed in telescoping boom
Locking device；Flashboard locking device 3.2 mainly includes the mobilizable flashboard being arranged in a wherein joint arm for two adjacent sections arm
Be arranged in another joint arm in barrier plate, when flashboard is mutually abutted with barrier plate, the retraction of inner arm is locked, when flashboard with hinder
When baffle separates, the retraction of inner arm is unlocked.Bolt-locking device 3.1 herein mainly helps out to control third joint arm
Stretching, when needing to prevent third joint arm from stretching out, bolt-locking device 3.1 is by the relative position of third joint arm and the second joint arm
It is locked；When needing prevents third joint arm from bouncing back, third joint arm is locked using flashboard locking device 3.2 relative to second
The retraction of joint arm.Therefore, the bolt of the bolt-locking device 3.1 to help out herein can be made to relatively fine, not have to
The weight of third joint arm and the above joint arm is undertaken, the weight for undertaking hoist is not needed yet, the weight of hoist is mainly locked by flashboard
Device 3.2 undertakes.
In telescoping boom hoist operation, whole boom locking devices is in lock state, and locking device assumes responsibility for
Whole load of boom, and semi-girder rope and contracting arm rope do not undertake load, advantageously reduce the requirement to semi-girder rope in this way.
Same motor driving (not shown), as a drive motor rotates, semi-girder can be used in semi-girder reel 5 and contracting arm reel 6
Reel 5 and 6 synchronous rotary of contracting arm reel, around on the contrary, when semi-girder reel rope closing, contracting arm reel is put for contracting arm rope and semi-girder rope
Rope;When contracting arm reel rope closing, semi-girder reel puts rope.When telescoping boom stretches, the stretching/retracted length and contracting arm of semi-girder rope 1
Retraction/extension elongation of rope 2 is identical.Optionally, semi-girder reel 5 and contracting arm reel 6 can also be driven with different motors, and the two is mutual
Cooperate the folding and unfolding restricted.
Specific scaling operation process is as follows: under the state that is fully retracted (Fig. 1), each equal Bidirectional locking of arm section needs to stretch
When arm, the first joint arm I and the locking of II mutual alignment of the second joint arm can be released, semi-girder rope 1 is in reel since the first telescopic arm
The lower recycling of effect, contracting arm rope is synchronous to release, due to being mutually locking between third joint arm III, the 4th joint arm IV, the 5th joint arm V
State will not generate relative motion, and the second joint arm II is pulled out by semi-girder rope 1, lock after stretching out in place.Likewise, sequentially solving
Except the locking (primary only to release a joint arm) for being left each arm section, reel withdrawing rope is driven, can sequentially realize the stretching of each arm section.
When each arm semi-girder in place when, lock each arm section, can hoist operation.
When needing contracting arm, by the sequence opposite with when semi-girder, the lock state of each arm section is released, contracting arm rope 2 is in reel
Under the action of recycle, semi-girder rope 1 is released, and each arm section can sequentially bounce back.
It is unlocked in the present solution, also can be controlled separately a certain arm section locking in each arm section, passes through reel withdrawing rope
The flexible of specified arm section is realized, as shown in figure 3, third joint arm III and the 4th joint arm IV are in stretching state.Appoint when boom is in
When meaning working arm long status, to change the extension elongation of certain arm section, as long as releasing the locking of the arm section, reel folding and unfolding is driven
The flexible of the arm section can be realized in rope.
It should be noted that the telescoping boom of 5 joint arms is used in the present embodiment, but those skilled in the art can manage
Xie Wei, the quantity of the arm section of telescoping boom of the invention may be greater than any amount equal to 3, for example, telescoping boom include 3,
4,6,7 or 8 joint arms etc..
Embodiment 2
On the basis of above-described embodiment 1, referring to Fig. 6-7, the telescoping boom of embodiment 2 further includes having that work can be cooperateed with semi-girder rope
The telescopic oil cylinder 4 of work, telescopic oil cylinder 4 contain cylinder barrel and cylinder rod, and cylinder rod is connected with the first joint arm I, cylinder barrel and II phase of the second joint arm
Connection, telescopic oil cylinder can drive the second joint arm II to move relative to the first joint arm I.The flexible of second joint arm II can be by flexible rope 1
It is completed jointly with telescopic oil cylinder 4, telescopic oil cylinder 4 makes that (weight can be hung on carrying to stretch in the telescopic extensions of the second joint arm II
Stretch simultaneously), it can also arrange in pairs or groups with remaining arm section and realize the step-less adjustment of brachium.
Embodiment 3
On the basis of above-described embodiment 2, referring to Fig. 8, by the setting of telescopic oil cylinder 4 in embodiment 2 in third joint arm III and the
Between four joint arms IV, i.e., cylinder rod is connected with third joint arm III, and cylinder barrel is connected with the 4th joint arm IV.The effect of telescopic oil cylinder 4
With effect with embodiment 2.It should be noted that substantially telescopic oil cylinder 4 can be set between any two adjacent sections arm.
In addition, the inside of boom cylinder is arranged in the telescopic oil cylinder 4 in Fig. 7-8, but telescopic oil cylinder 4 also can be set
The outside of boom cylinder, when oil cylinder is arranged on the outside, cylinder barrel the first joint arm of direction of telescopic oil cylinder, cylinder rod direction stretching side
To.The benefit that telescopic oil cylinder is placed in outside is that oil cylinder can be used as selection part, can be unloaded down when not used to mitigate boom weight,
When needing using telescopic oil cylinder, telescopic oil cylinder is mounted between specified two adjacent sections arm.
The embodiment of the present invention is described with above attached drawing, in the absence of conflict, the reality in the present invention
The feature applied in example and embodiment can be combined with each other.The invention is not limited to above-mentioned specific embodiments, show Ru above-mentioned
In intention, semi-girder rope only draws one, and actually semi-girder rope can arrange two or more.Above-mentioned specific embodiment
It is only schematical, rather than limitation, those skilled in the art under the inspiration of the present invention, are not departing from this
It in the case of invention objective and scope of the claimed protection, can also make more multi-form, these belong to protection of the invention
Range.
Claims (9)
1. a kind of telescoping boom comprising be successively set with the N joint arm of setting from outside to inside, N is more than or equal to 3, most external first
Joint arm, penetralia are N joint arm, which is characterized in that further include: semi-girder reel, contracting arm reel, semi-girder rope, contracting arm rope, rope are led
To device and boom locking device；
The semi-girder reel and contracting arm reel are set to the turntable of the first joint arm or crane；
First segment arm head portion and the second section to the head of N-1 joint arm and root are provided with the rope guide,
One end of the semi-girder rope is wound on the semi-girder reel, and the other end is fixed on the root of the N joint arm, the semi-girder rope
Successively around first segment arm head portion rope guide and second section to the head and root of N-1 joint arm
Whole rope guides；
One end of the contracting arm rope is wound on the contracting arm reel, and the other end is fixed on the N joint arm root；
The boom locking device is set in any one joint arm in two adjacent sections arm or is arranged in simultaneously two adjacent sections arm
On, it is locked or unlocked for the relative position to two adjacent sections arm.
2. telescoping boom according to claim 1, which is characterized in that the semi-girder reel and contracting arm reel are respectively by difference
Drive motor driving.
3. telescoping boom according to claim 1, which is characterized in that the semi-girder reel and contracting arm reel are by same driving
The coiling direction of motor driving, the semi-girder reel and contracting arm reel synchronous rotary, the semi-girder rope and the contracting arm rope is opposite.
4. telescoping boom according to claim 1, which is characterized in that the rope guide is that pulley or arcuate array turn
Axis or camber guide groove.
5. telescoping boom according to claim 1, which is characterized in that the telescoping boom is additionally provided with telescopic oil cylinder, institute
Stating telescopic oil cylinder includes cylinder barrel and cylinder rod, and the cylinder rod is connected with the joint arm in two joint arm of arbitrary neighborhood, the cylinder barrel with
Another joint arm in two joint arm of arbitrary neighborhood is connected.
6. telescoping boom according to claim 1, which is characterized in that the boom locking device is bolt-locking device,
The bolt-locking device includes the bolt in the joint arm being set in two joint arm of arbitrary neighborhood, two joint arm of arbitrary neighborhood
In another joint arm on be provided with the blocking portion matched with the bolt；Preferably, the blocking portion is pin hole or boss.
7. telescoping boom according to claim 1, which is characterized in that the boom locking device includes flashboard locking device
With auxiliary bolt locking device, the flashboard locking device is for being locked or being solved to the retraction of the inner arm in two adjacent sections arm
Lock；The auxiliary bolt locking device is for locking or unlocking the stretching of the inner arm in two adjacent sections arm；The auxiliary
Bolt-locking device includes the auxiliary bolt in the joint arm being set in two joint arm of arbitrary neighborhood, two joint arm of arbitrary neighborhood
In another joint arm on be provided with the secondary retention portion matched with the auxiliary bolt；Preferably, the secondary retention portion is
Pin hole or boss.
8. telescoping boom according to claim 1, which is characterized in that the telescoping boom can be from the second joint arm to N
Joint arm is successively stretched out, and the overhang or amount of recovery for being arbitrarily designated arm section can be adjusted under any brachium operating condition.
9. a kind of crane, which is characterized in that have the telescoping boom as described in claim 1-8 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811579829.6A CN109335974A (en) | 2018-12-24 | 2018-12-24 | A kind of telescoping boom and crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811579829.6A CN109335974A (en) | 2018-12-24 | 2018-12-24 | A kind of telescoping boom and crane |
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| Publication Number | Publication Date |
|---|---|
| CN109335974A true CN109335974A (en) | 2019-02-15 |
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ID=65297139
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811579829.6A Pending CN109335974A (en) | 2018-12-24 | 2018-12-24 | A kind of telescoping boom and crane |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109748216A (en) * | 2019-03-19 | 2019-05-14 | 威海怡和专用设备制造有限公司 | Vehicle-mounted hydraulic elevating mechanism |
| CN111039200A (en) * | 2019-12-30 | 2020-04-21 | 徐州重型机械有限公司 | Crane and control method |
| CN114458913A (en) * | 2022-01-27 | 2022-05-10 | 淄博朗达复合材料有限公司 | Pulley principle lifting rod |
| CN114508678A (en) * | 2022-01-27 | 2022-05-17 | 淄博朗达复合材料有限公司 | Rope winding structure of lifting rod capable of ascending section by section and rope winding method thereof |
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|---|---|---|---|---|
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109748216A (en) * | 2019-03-19 | 2019-05-14 | 威海怡和专用设备制造有限公司 | Vehicle-mounted hydraulic elevating mechanism |
| CN109748216B (en) * | 2019-03-19 | 2023-08-18 | 威海怡和专用设备制造有限公司 | Vehicle-mounted hydraulic lifting mechanism |
| CN111039200A (en) * | 2019-12-30 | 2020-04-21 | 徐州重型机械有限公司 | Crane and control method |
| CN114458913A (en) * | 2022-01-27 | 2022-05-10 | 淄博朗达复合材料有限公司 | Pulley principle lifting rod |
| CN114508678A (en) * | 2022-01-27 | 2022-05-17 | 淄博朗达复合材料有限公司 | Rope winding structure of lifting rod capable of ascending section by section and rope winding method thereof |
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