CN111017742A - Hoisting equipment - Google Patents

Hoisting equipment Download PDF

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Publication number
CN111017742A
CN111017742A CN201911371347.6A CN201911371347A CN111017742A CN 111017742 A CN111017742 A CN 111017742A CN 201911371347 A CN201911371347 A CN 201911371347A CN 111017742 A CN111017742 A CN 111017742A
Authority
CN
China
Prior art keywords
arm
lifting
arm support
support
main body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911371347.6A
Other languages
Chinese (zh)
Inventor
何喜东
蒋佩
王利
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Sany Equipment Co Ltd
Sany America Inc
Original Assignee
Sany America Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sany America Inc filed Critical Sany America Inc
Priority to CN201911371347.6A priority Critical patent/CN111017742A/en
Publication of CN111017742A publication Critical patent/CN111017742A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • 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
    • B66C23/18—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 specially adapted for use in particular purposes
    • B66C23/36—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 specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
    • 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
    • B66C23/64—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
    • 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
    • B66C23/72—Counterweights or supports for balancing lifting couples
    • B66C23/74—Counterweights or supports for balancing lifting couples separate from jib

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)

Abstract

The invention provides a hoisting device, which relates to the technical field of crane hoisting arms, and comprises: the crane comprises a first main body, a traction mechanism and an arm support, wherein the traction mechanism is fixed on the first main body, and one end of the arm support is hinged with the first main body; the movable end of the traction mechanism is connected with the arm support and is used for lifting the hoisting end of the arm support; the movable end of the lifting device is used for lifting the arm support; the movable end of the lifting device can move vertically, so that the arm support can be lifted under the driving of the lifting device. The traction mechanism and the lifting device of the lifting equipment provided by the embodiment of the invention act on the arm support together, the arm support can be lifted by the traction mechanism and can be lifted by the lifting device at the same time, two forces act on the arm support at the same time, and the arm support is driven to rotate upwards around the first main body so as to lift the lifting end of the arm support.

Description

Hoisting equipment
Technical Field
The invention relates to the technical field of crane booms, in particular to a hoisting device.
Background
The crawler crane is widely applied to hoisting operation in industries such as petroleum, chemical engineering, electric power, metallurgy, large-scale buildings, bridges, shipbuilding and the like because of the advantages of capability of walking with load, wide operation range, strong hoisting capacity, high efficiency of construction sites and the like.
In recent years, in order to meet market demands, large-tonnage crawler cranes are developed rapidly, and the large-tonnage crawler cranes have large hoisting capacity and high height, so that the boom of the large-tonnage crawler crane has long length and very heavy dead weight, and enough tension and counterweight weight need to be provided to lift the boom in the boom lifting process.
At present, the boom-lifting work of the crawler crane is ensured to be smooth by mainly using a variable-amplitude steel wire rope and the weight of a rear counterweight, so that enough tension and the weight of the counterweight need to be provided, and great difficulty is brought to assembly, use and cost.
Disclosure of Invention
The invention aims to provide hoisting equipment to relieve the technical problems that the existing crane needs to have larger pulling force and counterweight weight and provides higher requirements for production.
In a first aspect, an embodiment of the present invention provides a hoisting device, where the hoisting device includes: the crane comprises a first main body, a traction mechanism and an arm support, wherein the traction mechanism is fixed on the first main body, and one end of the arm support is hinged with the first main body; the movable end of the traction mechanism is connected with the arm support and is used for lifting the hoisting end of the arm support;
the movable end of the lifting device is used for lifting the arm support; the movable end of the lifting device can move vertically, so that the arm support can be lifted under the driving of the lifting device.
Furthermore, the lifting device comprises a second main body, a supporting arm and a first telescopic cylinder, wherein one end of the supporting arm is hinged with the second main body, and the other end of the supporting arm forms the movable end;
one end of the first telescopic cylinder is hinged to the second main body, and the other end of the first telescopic cylinder is hinged to the supporting arm, so that the first telescopic cylinder can drive the supporting arm to rotate in a vertical plane.
Furthermore, the supporting arm comprises a plurality of arm units which are connected in sequence, two adjacent arm units are sleeved, and the supporting arm can stretch out and draw back;
the driving mechanism is arranged in the supporting arm and connected with the arm unit, and the driving mechanism is used for driving the supporting arm to extend or shorten.
Further, a first traveling mechanism is arranged below the second main body and can drive the lifting device to travel.
Furthermore, a top rod perpendicular to the length direction of the supporting arm is arranged on the movable end of the lifting device, and a clamping groove matched and clamped with the top rod is arranged on the arm support.
Furthermore, a plurality of supporting legs capable of lifting along the vertical direction are arranged on the second main body.
Further, the lifting apparatus includes an auxiliary support device including a second travel mechanism movable toward or away from the second body;
the second advancing mechanism is provided with a second telescopic cylinder which is vertically arranged, the movable end of the second telescopic cylinder is abutted against a first section arm unit in the supporting arm, and the first section arm unit is hinged with the second main body;
the abutting position of the driving end and the first arm section unit is located at one end, far away from the second body, of the first arm section unit.
Furthermore, the second advancing mechanism and the second main body are correspondingly provided with detachable connecting structures, and the connecting structures are used for detachably connecting the second advancing mechanism and the second main body.
Furthermore, a bracket is arranged at the movable end of the second telescopic cylinder, the opening direction of the bracket is along the extension direction of the second telescopic cylinder and is back to the second advancing mechanism, and the extension direction of the bracket is perpendicular to the length direction of the second telescopic cylinder;
the first arm section unit is provided with a support rod corresponding to the bracket, and the support rod is vertical to the length direction of the first arm section unit.
The embodiment of the invention provides hoisting equipment, which comprises: the crane comprises a first main body, a traction mechanism and an arm support, wherein the traction mechanism is fixed on the first main body, and one end of the arm support is hinged with the first main body; the movable end of the traction mechanism is connected with the arm support and is used for lifting the hoisting end of the arm support; the movable end of the lifting device is used for lifting the arm support; the movable end of the lifting device can move vertically, so that the arm support can be lifted under the driving of the lifting device. The traction mechanism and the lifting device of the lifting equipment provided by the embodiment of the invention act on the arm support together, the arm support can be lifted by the traction mechanism and can be lifted by the lifting device at the same time, two forces act on the arm support at the same time, and the arm support is driven to rotate upwards around the first main body so as to lift the lifting end of the arm support.
Compared with the prior art, the hoisting equipment provided by the embodiment of the invention has the following advantages: in the prior art, the hoisting end of the arm support is lifted only by means of traction, so that the requirement on a traction mechanism is high, and the phenomenon of fracture of the traction mechanism often occurs. Meanwhile, because the angle between the traction angle of the traction mechanism and the lifting direction of the arm support is acute angle initially, the arm support can be lifted only by large enough traction force, and the traction mechanism of the crane is required to provide large enough traction force and enough balance weight. The lifting equipment provided by the embodiment of the invention simultaneously lifts the arm support by virtue of the traction mechanism and the lifting device, and the acting force of the lifting device is applied to the arm support, so that the effect of four-two poking jacks is realized in the lifting of the arm support. Therefore, the lifting device shares the force on the traction mechanism, so that the traction requirement of the traction mechanism is reduced, the damage frequency of the traction mechanism is reduced, and the service life of the hoisting equipment is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic diagram of a state of a hoisting device according to embodiment 1 of the present invention;
fig. 2 is a schematic view of another state of the hoisting device provided in embodiment 1 of the present invention;
fig. 3 is a schematic view of a state of a lifting device of a lifting apparatus according to embodiment 1 of the present invention;
fig. 4 is a schematic view of another state of a lifting device of a lifting apparatus according to embodiment 1 of the present invention;
fig. 5 is a schematic view of a support arm of a lifting apparatus according to embodiment 1 of the present invention;
fig. 6 is a schematic view of an arm support of a hoisting apparatus according to embodiment 1 of the present invention;
fig. 7 is a schematic view of another state of the lifting device of the lifting apparatus according to embodiment 1 of the present invention.
Icon: 110-a first body; 120-a traction mechanism; 121-pulling plates; 122-a counterweight unit; 123-a hauling cable; 130-arm support; 200-a lifting device; 210-a second body; 220-a support arm; 230-a first telescoping cylinder; 240-a first travel mechanism; 310-a mandril; 320-card slot.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1 to 7, a lifting apparatus provided in an embodiment of the present invention includes: the crane comprises a first main body 110, a traction mechanism 120 and an arm support 130, wherein the traction mechanism 120 is fixed on the first main body 110, and one end of the arm support 130 is hinged with the first main body 110; the movable end of the traction mechanism 120 is connected with the arm support 130, and is used for lifting the hoisting end of the arm support 130; the movable end of the lifting device 200 is used for lifting the arm support 130; the movable end of the lifting device 200 can move vertically, so that the arm support 130 can be lifted under the driving of the lifting device 200. The traction mechanism 120 and the lifting device 200 of the lifting device provided by the embodiment of the invention act on the arm support 130 together, the arm support 130 can be lifted by the traction mechanism 120 and can be lifted by the lifting device 200 at the same time, two forces act on the arm support 130 at the same time, and the arm support 130 is driven to rotate upwards around the first main body 110, so that the lifting end of the arm support 130 is lifted.
Compared with the prior art, the hoisting equipment provided by the embodiment of the invention has the following advantages: in the prior art, the hoisting end of the arm support 130 is lifted only by virtue of the traction action, so that the requirement on the traction mechanism 120 is high, and the phenomenon that the traction mechanism 120 is broken frequently occurs. The hoisting equipment provided by the embodiment of the invention simultaneously lifts the arm support 130 by virtue of the traction mechanism 120 and the lifting equipment, so that the lifting device 200 shares the force on the traction mechanism 120, thereby reducing the traction requirement of the traction mechanism 120, reducing the damage frequency of the traction mechanism 120 and prolonging the service life of the hoisting equipment.
The crane may be a conventional crane, and the traction mechanism 120 may include a pulling plate 121, a counterweight unit 122, a traction rope 123, and the like, and the traction mechanism 120 lifts the boom 130 from the upper end of the boom 130 to rotate the boom 130 around the first body 110.
The lifting device 200 comprises a second main body 210, a supporting arm 220 and a first telescopic cylinder 230, wherein one end of the supporting arm 220 is hinged with the second main body 210, and the other end of the supporting arm 220 forms the movable end; one end of the first telescopic cylinder 230 is hinged to the second body 210, and the other end is hinged to the supporting arm 220, so that the first telescopic cylinder 230 can drive the supporting arm 220 to rotate in a vertical plane.
The second body 210 may be a support platform, above which a support arm 220 is hinged, and one end of the first telescopic cylinder 230 is hinged with the second body 210. When the first telescopic cylinder 230 is started, the first telescopic cylinder 230 can be extended, and the supporting arm 220 is driven by the first telescopic cylinder 230 to rotate upwards around the second main body 210, so as to abut against the arm support 130, and in the process that the supporting arm 220 rotates upwards, a lifting force can be generated on the arm support 130, so that the lifting end of the arm support 130 is assisted to be lifted. When the first telescopic cylinder 230 is shortened, the supporting arm 220 is driven to rotate downward around the second body 210, and returns to the initial position to prepare for the next lifting.
The first telescopic cylinder 230 may be a hydraulic cylinder.
The supporting arm 220 comprises a plurality of arm units which are connected in sequence, two adjacent arm units are sleeved, and the supporting arm 220 can stretch and retract; the inside drive mechanism that is provided with of support arm 220, drive mechanism with the arm unit is connected, drive mechanism is used for the drive support arm 220 is long or is shortened.
In order to further improve the effect of the lifting device 200 on the arm support 130, the supporting arm 220 may be extended or contracted by the driving mechanism. It should be noted that, under the driving of the driving mechanism, the plurality of sleeved arm units can be extended or shortened, which belongs to the prior art and is not described herein again.
A first traveling mechanism 240 is disposed below the second main body 210, and the first traveling mechanism 240 can drive the lifting device 200 to travel.
The first traveling mechanism 240 may be a crawler-type traveling mechanism or a wheel-type traveling mechanism.
The movable end of the lifting device 200 is provided with a top rod 310 perpendicular to the length direction of the supporting arm 220, and the arm support 130 is provided with a clamping groove 320 matched and clamped with the top rod 310.
In order to enable the movable end of the lifting device 200 to always abut against the same position of the arm support 130 and rotate relatively in the lifting process of the lifting device 200, the movable end of the lifting device 200 is prevented from displacing with the arm support 130 in the length direction of the arm support 130. A clamping groove 320 is welded below the lifting end of the arm support 130, the extending direction of the clamping groove 320 is perpendicular to the length of the arm support 130, the opening direction of the clamping groove 320 is downward, a top rod 310 is welded on the movable end of the lifting device 200, the top rod 310 can be clamped in the clamping groove 320, the inner wall of the clamping groove 320 is in smooth transition, the cross section of the top rod is the circle center, and the top rod 310 is always abutted to the bottom of the clamping groove 320 in the lifting process. And, the initial raising process of the boom 130 is completed by the lifting device 200 and the traction mechanism 120, the lifting process of the lifting device is divided into two stages, in the first stage, the supporting arm 220 is driven by the first telescopic cylinder 230 to rotate upward around the second main body 210 so as to abut against the boom 130, and in the process of upward rotation of the supporting arm 220, a lifting force can be generated on the boom 130 to assist the lifting end of the boom 130 to raise. When the support arm reaches a maximum angle, the first telescoping cylinder 230 stops moving; and in the second stage, the driving mechanism works, the plurality of sleeved arm units of the supporting arm start to extend, and the arm support is lifted again. When the boom 130 is raised to a certain height, the moment from the center of mass of the boom 130 to the first body 110 is reduced, the traction mechanism 120 can independently complete subsequent lifting actions, and at the moment, the ejector rod and the clamping groove 320 can be naturally separated.
The second main body 210 is provided with a plurality of supporting legs capable of vertically lifting.
Before the lifting device 200 is lifted, the supporting legs are lowered to support the supporting legs on the ground, so that the ground gripping performance is improved, and the lifting device 200 is prevented from sliding relative to the ground in the lifting process.
The crane needs great arm lifting force and counterweight weight when the crane starts to lift the arm, otherwise, the pulling plate 121 is broken or the rear counterweight weight is heavy, the reduction of field operation and use cost is not facilitated, the arm lifting force required by the arm support 130 is provided through the lifting device 200, the force required by the lifting of the arm support 130 is provided through the extension of the supporting arm 220 after the first telescopic cylinder 230 is lifted to the maximum position, and when the crane reaches a certain angle, the arm lifting of the crane can be realized through the force of the pulling plate 121 and the rear counterweight. The reverse operation is performed when the arm is dropped, and the description is omitted.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (5)

1. A hoisting device, characterized in that the hoisting device comprises: the crane comprises a first main body (110), a traction mechanism (120) and an arm support (130), wherein the traction mechanism (120) is fixed on the first main body (110), and one end of the arm support (130) is hinged with the first main body (110); the movable end of the traction mechanism (120) is connected with the arm support (130) and is used for lifting the hoisting end of the arm support (130);
the movable end of the lifting device (200) is used for lifting the arm support (130); the movable end of the lifting device (200) can move vertically, so that the arm support (130) can be lifted under the driving of the lifting device (200).
2. The hoisting device as claimed in claim 1, characterized in that the lifting means (200) comprise a second body (210), a support arm (220) and a first telescopic cylinder (230), one end of the support arm (220) being hinged with the second body (210), the other end of the support arm (220) forming the movable end;
one end of the first telescopic cylinder (230) is hinged to the second main body (210), and the other end of the first telescopic cylinder is hinged to the supporting arm (220), so that the first telescopic cylinder (230) can drive the supporting arm (220) to rotate in a vertical plane.
3. The hoisting device as claimed in claim 2, wherein the support arm (220) comprises a plurality of arm units connected in series, two adjacent arm units being nested, the support arm (220) being capable of telescoping;
the driving mechanism is arranged in the supporting arm (220), the driving mechanism is connected with the arm unit, and the driving mechanism is used for driving the supporting arm (220) to extend or shorten.
4. Hoisting device as claimed in claim 3, characterized in that a first travelling mechanism (240) is arranged below the second body (210), which first travelling mechanism (240) is capable of bringing about the travelling of the lifting means (200).
5. The hoisting device as claimed in claim 2, wherein the movable end of the lifting means is provided with a top bar (310) perpendicular to the length direction of the support arm (220), and the arm support (130) is provided with a slot (320) for engaging with the top bar (310).
CN201911371347.6A 2019-12-26 2019-12-26 Hoisting equipment Pending CN111017742A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911371347.6A CN111017742A (en) 2019-12-26 2019-12-26 Hoisting equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911371347.6A CN111017742A (en) 2019-12-26 2019-12-26 Hoisting equipment

Publications (1)

Publication Number Publication Date
CN111017742A true CN111017742A (en) 2020-04-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911371347.6A Pending CN111017742A (en) 2019-12-26 2019-12-26 Hoisting equipment

Country Status (1)

Country Link
CN (1) CN111017742A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2097753A (en) * 1981-05-04 1982-11-10 Manitowoc Co Lift cranes
CN101547853A (en) * 2007-09-11 2009-09-30 特雷克斯-德马格有限公司 Auxiliary device for setting up the lower and upper luffing supports of an adjustable auxiliary boom of a mobile crane
CN101759105A (en) * 2008-09-19 2010-06-30 马尼托瓦克起重机有限公司 Boom hoist transportation system and crane using same
CN101955132A (en) * 2009-05-01 2011-01-26 马尼托瓦克起重机有限责任公司 Hoisting crane with crane arm lifting supplementary structure
CN102390783A (en) * 2010-06-10 2012-03-28 利勃海尔爱茵根有限公司 Method of moving large cranes in the setup system and system of carrying out this method
CN105645278A (en) * 2016-03-31 2016-06-08 中冶建工集团有限公司 Method for mounting crawler cranes in side slope sites

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2097753A (en) * 1981-05-04 1982-11-10 Manitowoc Co Lift cranes
CN101547853A (en) * 2007-09-11 2009-09-30 特雷克斯-德马格有限公司 Auxiliary device for setting up the lower and upper luffing supports of an adjustable auxiliary boom of a mobile crane
CN101759105A (en) * 2008-09-19 2010-06-30 马尼托瓦克起重机有限公司 Boom hoist transportation system and crane using same
CN101955132A (en) * 2009-05-01 2011-01-26 马尼托瓦克起重机有限责任公司 Hoisting crane with crane arm lifting supplementary structure
CN102390783A (en) * 2010-06-10 2012-03-28 利勃海尔爱茵根有限公司 Method of moving large cranes in the setup system and system of carrying out this method
CN105645278A (en) * 2016-03-31 2016-06-08 中冶建工集团有限公司 Method for mounting crawler cranes in side slope sites

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Application publication date: 20200417