CN112047249A - Sling for weight below 300 kg in narrow space - Google Patents

Sling for weight below 300 kg in narrow space Download PDF

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Publication number
CN112047249A
CN112047249A CN202010798093.2A CN202010798093A CN112047249A CN 112047249 A CN112047249 A CN 112047249A CN 202010798093 A CN202010798093 A CN 202010798093A CN 112047249 A CN112047249 A CN 112047249A
Authority
CN
China
Prior art keywords
suspension arm
supporting mechanism
hollow
supporting
steel wire
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.)
Granted
Application number
CN202010798093.2A
Other languages
Chinese (zh)
Other versions
CN112047249B (en
Inventor
周松民
周奋强
张涛
郑超义
张开福
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.)
Chongqing Datang International Pengshui Hydropower Development Co ltd
Original Assignee
Chongqing Datang International Pengshui Hydropower Development Co ltd
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 Chongqing Datang International Pengshui Hydropower Development Co ltd filed Critical Chongqing Datang International Pengshui Hydropower Development Co ltd
Priority to CN202010798093.2A priority Critical patent/CN112047249B/en
Publication of CN112047249A publication Critical patent/CN112047249A/en
Application granted granted Critical
Publication of CN112047249B publication Critical patent/CN112047249B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B66C23/06—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 with jibs mounted for jibbing or luffing movements
    • 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
    • B66C23/72—Counterweights or supports for balancing lifting couples
    • B66C23/78—Supports, e.g. outriggers, for mobile 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
    • B66C23/82—Luffing gear
    • B66C23/821—Bracing equipment for booms
    • B66C23/826—Bracing equipment acting at an inclined angle to vertical and horizontal directions
    • B66C23/828—Bracing equipment acting at an inclined angle to vertical and horizontal directions where the angle is adjustable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/84—Slewing gear
    • 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
    • B66C23/88—Safety gear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

The invention discloses a lifting appliance for a heavy object below 300 kilograms in a narrow space, wherein a fixed pulley (6) is arranged in the top end of a hollow lifting arm (4), a hoisting mechanism (5) is arranged at the tail end of the hollow lifting arm (4), and a supporting mechanism rotating shaft (8) is arranged below one sixth of the total length L of the central lifting arm (4).

Description

Sling for weight below 300 kg in narrow space
Technical Field
The invention relates to the technical field of lifting appliances, in particular to a lifting appliance for a weight below 300 kilograms in a narrow space.
Background
In the prior art, the operation space of a thrust bearing reinstalling field of a large hydroelectric generating set is very narrow, and when workers need to reinstall a thrust cover plate; thrust apron weight ratio is heavier, and the personnel injury is very easily caused to the artificial transport is mentioned more difficult, but uses traditional lifting by crane the potential safety hazard that the instrument will have askew drawing to hang to one side, all can cause the harm to people and apron.
But according to the existing situation: when a heavy object needs to be lifted in a limited and narrow space in most factories, the space is narrow, and a reasonable lifting tool cannot be used. For example, when a thrust bearing cover plate is installed in a penning hydropower plant in a reinstalling mode, the cover plate is too heavy, the cover plate cannot be lifted up and installed only by manpower, the condition that the chain block is inclined to pull and hung in a slanting mode when the chain block is lifted by using a traditional tool is utilized, and personnel injury is easily caused due to serious potential safety hazards.
Therefore, there is a need for a device to solve the above problems, based on the problems encountered in the actual situation and the disadvantages actually existing in the prior art.
Disclosure of Invention
The invention aims to overcome the defects of the background and provides a lifting appliance for a weight less than 300 kilograms in a narrow space.
The purpose of the invention is implemented by the following technical scheme: a lifting appliance for weights below 300 kg in a narrow space comprises a universal lifting mechanism, a top wheel mechanism, a supporting mechanism, a hollow lifting arm, a hoisting mechanism, a fixed pulley, a steel wire rope, a rotating shaft of the supporting mechanism, a lifting arm supporting rod recycling and fixing device, a movable supporting rod and a lifting object connecting device;
a fixed pulley is arranged in the top end of the hollow suspension arm, a hoisting mechanism is arranged at the tail end of the hollow suspension arm, a supporting mechanism rotating shaft is arranged below one sixth of the total length L of the central suspension arm,
the upper end of the hollow suspension arm is respectively provided with a universal hoisting mechanism and a top wheel mechanism, the top wheel mechanism is positioned behind the universal hoisting mechanism,
the lower end of the hollow suspension arm is provided with a supporting mechanism, and the supporting mechanism is positioned right below the top wheel mechanism;
the hoisting mechanism is provided with a steel wire rope, the steel wire rope is arranged along the cavity of the central suspension arm and is wound on the fixed pulley, and the head of the steel wire rope is connected with the suspension object connecting device.
In the above technical scheme: the hollow suspension arm is 60 mm in diameter and 3 m in length and is made of an aluminum pipe.
In the above technical scheme: the supporting mechanism comprises a supporting mechanism rotating shaft, a suspension arm supporting rod recovery fixing device and a movable supporting rod, the supporting mechanism rotating shaft is fixed below the hollow suspension arm, the supporting mechanism rotating shaft is provided with the movable supporting rod and the suspension arm supporting rod recovery fixing device which is transversely arranged, and the suspension arm supporting rod recovery fixing device is fixed below the hollow suspension arm.
In the above technical scheme: the top ends of the universal hoisting mechanism and the top wheel mechanism can be connected with the lower end of an external generator rotor.
In the above technical scheme: the universal hoisting mechanism can rotate along the rotor of the generator.
The invention has the following advantages: 1. according to the invention, by adding the lifting arm support rod recovery fixing device and the movable support rod, the safety and reliability of lifting a heavy object in a narrow space are improved, the possibility of injury to human bodies caused by the heavy object falling off the hand and being impacted is reduced, the manpower input is reduced, and the working efficiency is effectively improved. 2. The invention has the advantages of light overall weight, enough use strength, simple structure, convenient installation, use and maintenance, firm support installation, convenient carrying and the like according to the field environment of narrow working space installation, and improves the safety and the high efficiency of hoisting heavy objects in narrow space.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of a rotating shaft mounting structure of the support mechanism of the present invention.
Fig. 3 is a schematic view of the structure of the present invention rotating upward along the rotor of the generator.
Fig. 4 is a schematic view of the structure of the present invention rotating downward along the rotor of the generator.
In the figure: the device comprises a universal hoisting mechanism 1, a top wheel mechanism 2, a supporting mechanism 3, a hollow suspension arm 4, a hoisting mechanism 5, a fixed pulley 6, a steel wire rope 7, a supporting mechanism rotating shaft 8, a suspension arm supporting rod recovery fixing device 9, a movable supporting rod 10, a suspension object connecting device 11 and a generator rotor 12.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below. The embodiments of the present invention, and all other embodiments obtained by a person of ordinary skill in the art without any inventive work, belong to the scope of protection of the present invention.
Referring to FIGS. 1-4: the invention relates to a lifting appliance for a heavy object below 300 kilograms in a narrow space, which comprises a universal lifting mechanism 1, a top wheel mechanism 2, a supporting mechanism 3, a hollow lifting arm 4, a hoisting mechanism 5, a fixed pulley 6, a steel wire rope 7, a supporting mechanism rotating shaft 8, a lifting arm supporting rod recycling and fixing device 9, a movable supporting rod 10 and a lifting object connecting device 11;
a fixed pulley 6 is arranged in the top end of the hollow suspension arm 4, a hoisting mechanism 5 is arranged at the tail end of the hollow suspension arm 4, a supporting mechanism rotating shaft 8 is arranged below one sixth of the total length L of the central suspension arm 4,
the upper end of the hollow suspension arm 4 is respectively provided with a universal hoisting mechanism 1 and a top wheel mechanism 2, the top wheel mechanism 2 is positioned at the rear part of the universal hoisting mechanism 1,
the lower end of the hollow suspension arm 4 is provided with a supporting mechanism 3, and the supporting mechanism 3 is positioned right below the top wheel mechanism 2;
a steel wire rope 7 is led out of the hoisting mechanism 5, the steel wire rope 7 is arranged along the cavity of the central suspension arm 4 and is wound on the fixed pulley 6, and the head of the steel wire rope 7 is connected with a hanging object connecting device 11. The hanging object connecting device 11 can be a hook or a bolt for connection, and aims to save the space height of connection as much as possible.
The arrangement of the steel wire rope 7 from the cavity of the central suspension arm 4 can ensure that the steel wire rope 7 is protected by the hollow suspension arm 4, and the damage caused by the winding of the steel wire rope 7 and the injury of workers caused by the winding of the steel wire rope 7 to the workers are avoided
The hollow suspension arm 4 has a diameter of 60 mm and a length of 3 m, and is made of an aluminum pipe.
The hollow suspension arm 4 is made of light materials (such as aluminum) under the condition of meeting the safety of a lifted object, so that the whole weight of the lifting appliance can be greatly reduced, and the labor intensity in use is reduced.
The supporting mechanism 3 comprises a supporting mechanism rotating shaft 8, a suspension arm supporting rod recovery fixing device 9 and a movable supporting rod 10, the supporting mechanism rotating shaft 8 is fixed below the hollow suspension arm 4, the supporting mechanism rotating shaft 8 is provided with the movable supporting rod 10 and the suspension arm supporting rod recovery fixing device 9 which is transversely arranged, and the suspension arm supporting rod recovery fixing device 9 is fixed below the hollow suspension arm 1.
The top ends of the universal hoisting mechanism 1 and the top wheel mechanism 2 can be connected with the lower end of an externally connected generator rotor 12; the universal hoisting mechanism 1 can rotate along the generator rotor 12.
The invention comprises the following specific use processes: the universal hoisting mechanism 1 is connected with a top plate of equipment (usually a bottom plate of a generator rotor 12, namely the top plate relative to the position of the invention), a movable support rod 10 is used for keeping the hollow hoisting arm 4 in a horizontal state, the hollow hoisting arm is connected with a heavy object to be hoisted through a hoisting object connecting device 11, and a hoisting mechanism 5 is used for recovering a steel wire rope 7 and driving a fixed pulley 6 to rotate so as to hoist the heavy object. After the front end of the hollow suspension arm 4 is stressed, the top wheel mechanism 2 is elastically contacted with a top plate of the equipment (the bottom plate of the generator rotor 12) to keep the hollow suspension arm 4 horizontal, and the movable support rod 10 is recovered to the position of the suspension arm support rod recovery fixing device 9.
Referring to FIGS. 3-4: the position of a heavy object can be adjusted to be above the installation position by rotating the hollow suspension arm 4 in the horizontal and lifting directions through the universal hoisting mechanism 1 according to the installation position of the suspension object. A steel wire rope 7 is sent out through the winding mechanism 5 to drive the fixed pulley 6 to rotate, so that a heavy object is placed at the installation position. After the work is finished, the universal hoisting mechanism 1 is detached from the connection position of the equipment top plate, and then the special hoisting tool can be recovered.
The above-mentioned parts not described in detail are prior art.

Claims (5)

1. The utility model provides a hoist of following heavy object of narrow and small space 300 kilograms which characterized in that: the lifting device comprises a universal lifting mechanism (1), a top wheel mechanism (2), a supporting mechanism (3), a hollow lifting arm (4), a hoisting mechanism (5), a fixed pulley (6), a steel wire rope (7), a rotating shaft (8) of the supporting mechanism, a lifting arm supporting rod recycling and fixing device (9), a movable supporting rod (10) and a hanging object connecting device (11);
a fixed pulley (6) is arranged in the top end of the hollow suspension arm (4), a hoisting mechanism (5) is arranged at the tail end of the hollow suspension arm (4), a supporting mechanism rotating shaft (8) is arranged below one sixth of the total length L of the central suspension arm (4),
the upper end of the hollow suspension arm (4) is respectively provided with a universal hoisting mechanism (1) and a top wheel mechanism (2), the top wheel mechanism (2) is positioned at the rear part of the universal hoisting mechanism (1),
the lower end of the hollow suspension arm (4) is provided with a supporting mechanism (3), and the supporting mechanism (3) is positioned right below the top wheel mechanism (2);
a steel wire rope (7) is led out of the hoisting mechanism (5), the steel wire rope (7) is arranged along the cavity of the central suspension arm (4) and wound on the fixed pulley (6), and the head of the steel wire rope (7) is connected with a suspension object connecting device (11).
2. The spreader for weights of 300 kilograms and less in a narrow space according to claim 1, wherein: the hollow suspension arm (4) is 60 mm in diameter and 3 m in length and is made of an aluminum pipe.
3. The spreader for weights of 300 kilograms and less in a narrow space according to claim 1, wherein: supporting mechanism (3) retrieve fixing device (9) and activity bracing piece (10) including supporting mechanism pivot (8), davit bracing piece, supporting mechanism pivot (8) fix the below of cavity davit (4), supporting mechanism pivot (8) on be provided with activity bracing piece (10) and transversely arranged's davit bracing piece and retrieve fixing device (9), davit bracing piece retrieve fixing device (9) and fix the below of cavity davit (1).
4. The spreader for weights of 300 kilograms and less in a narrow space according to claim 1, wherein: the top ends of the universal hoisting mechanism (1) and the top wheel mechanism (2) can be connected with the lower end of an external generator rotor (12).
5. The spreader for weights of 300 kg in the narrow space of claim 4, wherein: the universal hoisting mechanism (1) can rotate along the generator rotor (12).
CN202010798093.2A 2020-08-10 2020-08-10 Sling for weight below 300 kg in narrow space Expired - Fee Related CN112047249B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010798093.2A CN112047249B (en) 2020-08-10 2020-08-10 Sling for weight below 300 kg in narrow space

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Application Number Priority Date Filing Date Title
CN202010798093.2A CN112047249B (en) 2020-08-10 2020-08-10 Sling for weight below 300 kg in narrow space

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CN112047249A true CN112047249A (en) 2020-12-08
CN112047249B CN112047249B (en) 2023-03-24

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Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU537934A1 (en) * 1972-07-28 1976-12-05 Алма-Атинский Домостроительный Комбинат Crane for lifting and delivering cargo to the window opening of the building
FR2383117A1 (en) * 1977-03-08 1978-10-06 Malie Louis Assembly for lifting and positioning prefabricated building elements - has wheeled pyramidal framework with winch and double pulley arrangement on main beam
CN2030187U (en) * 1987-09-30 1989-01-04 李家洲 Crane for family use
CN2078312U (en) * 1990-12-10 1991-06-05 杨玉起 Domestic miniature electric hoist
CN1054573A (en) * 1991-02-09 1991-09-18 倪明忠 Goods elevator for building
CN2147224Y (en) * 1992-11-02 1993-11-24 杜学蔚 Wang hanging for storied resident building
CN202643148U (en) * 2012-03-26 2013-01-02 中国有色金属工业第十四冶金建设公司 Spiral crane with cantilever capable of horizontally hovering and positioning
JP2014074303A (en) * 2012-10-05 2014-04-24 Aakutekku:Kk Dangerous article storehouse
CN204474187U (en) * 2015-02-06 2015-07-15 云南特安特起重机械有限公司 A kind of wall type turning crane
CN204625025U (en) * 2015-02-16 2015-09-09 中交四航局第二工程有限公司 A kind of hanging apparatus
CN108726397A (en) * 2018-07-05 2018-11-02 北京诚田恒业煤矿设备有限公司 A kind of underground mine use stent-type hydraulic crane device

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU537934A1 (en) * 1972-07-28 1976-12-05 Алма-Атинский Домостроительный Комбинат Crane for lifting and delivering cargo to the window opening of the building
FR2383117A1 (en) * 1977-03-08 1978-10-06 Malie Louis Assembly for lifting and positioning prefabricated building elements - has wheeled pyramidal framework with winch and double pulley arrangement on main beam
CN2030187U (en) * 1987-09-30 1989-01-04 李家洲 Crane for family use
CN2078312U (en) * 1990-12-10 1991-06-05 杨玉起 Domestic miniature electric hoist
CN1054573A (en) * 1991-02-09 1991-09-18 倪明忠 Goods elevator for building
CN2147224Y (en) * 1992-11-02 1993-11-24 杜学蔚 Wang hanging for storied resident building
CN202643148U (en) * 2012-03-26 2013-01-02 中国有色金属工业第十四冶金建设公司 Spiral crane with cantilever capable of horizontally hovering and positioning
JP2014074303A (en) * 2012-10-05 2014-04-24 Aakutekku:Kk Dangerous article storehouse
CN204474187U (en) * 2015-02-06 2015-07-15 云南特安特起重机械有限公司 A kind of wall type turning crane
CN204625025U (en) * 2015-02-16 2015-09-09 中交四航局第二工程有限公司 A kind of hanging apparatus
CN108726397A (en) * 2018-07-05 2018-11-02 北京诚田恒业煤矿设备有限公司 A kind of underground mine use stent-type hydraulic crane device

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Granted publication date: 20230324