CN114014190A - Hydraulic rope breaking stopping device and method for tower crane luffing trolley - Google Patents

Hydraulic rope breaking stopping device and method for tower crane luffing trolley Download PDF

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Publication number
CN114014190A
CN114014190A CN202111520864.2A CN202111520864A CN114014190A CN 114014190 A CN114014190 A CN 114014190A CN 202111520864 A CN202111520864 A CN 202111520864A CN 114014190 A CN114014190 A CN 114014190A
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CN
China
Prior art keywords
jacking
module
rope
hydraulic
trolley
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
CN202111520864.2A
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Chinese (zh)
Inventor
刘立国
靳玮勃
侯巍炜
朱毅
刘帝芳
李植林
白杨
胡虎娟
畅兵展
雷海
任玺
张垚
訾永
王靖
郭栋
赵剑
樊佳星
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Shaanxi Construction Machinery Co ltd
Original Assignee
Shaanxi Construction Machinery 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 Shaanxi Construction Machinery Co ltd filed Critical Shaanxi Construction Machinery Co ltd
Priority to CN202111520864.2A priority Critical patent/CN114014190A/en
Publication of CN114014190A publication Critical patent/CN114014190A/en
Pending legal-status Critical Current

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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
    • B66C23/88—Safety gear
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/26—Locking mechanisms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/26—Locking mechanisms
    • F15B2015/268—Fluid supply for locking or release independent of actuator pressurisation

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Control And Safety Of Cranes (AREA)

Abstract

The invention belongs to the technical field of crane safety protection, and discloses a hydraulic rope breaking stopping device and method for a tower crane luffing trolley, which comprises an energy storage safety module, a rope breaking triggering module and a jacking stopping module; the energy storage safety module, the rope breakage triggering module and the jacking stop module are all fixed on the outer side of the trolley beam, the energy storage safety module is connected with the rope breakage triggering module through a hydraulic rubber tube, and the rope breakage triggering module is connected with the jacking stop module through a hydraulic rubber tube; the energy storage safety module is used for providing a jacking power source; the rope breaking triggering module is used for releasing the pressure of the energy accumulator into the jacking stopping module when a rope is broken. The invention applies a hydraulic control mode, has reliable rope breaking protection, simple structure and convenient installation and adjustment, and overcomes the phenomenon that the amplitude-variable trolley can not effectively stop because the traction steel wire rope is suddenly broken in the operation process of the traditional tower crane amplitude-variable double trolley and the traditional single trolley. The hydraulic system is adopted to drive the jacking device, so that the locking effect is reliable and convenient.

Description

Hydraulic rope breaking stopping device and method for tower crane luffing trolley
Technical Field
The invention belongs to the technical field of crane safety protection, and particularly relates to a hydraulic rope breaking stopping device and method for a tower crane luffing trolley.
Background
At present, a rope breakage protection device for a tower crane luffing trolley is a key module in the safe operation of a tower crane, and both a double-trolley and a single-trolley must be provided with the rope breakage protection device which is reliable in configuration, but the rope breakage protection device of the existing luffing trolley is often out of work under the influence of various factors, particularly when a large-tonnage double-luffing trolley works and runs and breaks ropes, because a steel wire rope of the tower crane luffing trolley is thick, when the steel wire rope is pulled by the trolley to break the ropes, the rope breakage overturning device cannot be normally overturned, the phenomenon that the steel wire rope erects the overturning device occurs, the rope breakage protection device fails, the trolley cannot be stopped easily, dangers are brought to the operation of the tower crane, and certain potential safety hazards exist.
Through the above analysis, the problems and defects of the prior art are as follows:
(1) the existing rope breaking protection device of the amplitude variation trolley is influenced by various factors and often fails.
(2) When the trolley pulls the steel wire rope to break, the broken rope overturning device cannot be normally overturned, and the phenomenon that the steel wire rope erects the overturning device occurs, so that the broken rope protection device fails, and the trolley cannot be stopped easily.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a hydraulic rope breaking stopping device and method for a tower crane luffing trolley.
The invention is realized in this way, a hydraulic rope breaking stopping device for a tower crane luffing trolley comprises:
the energy storage safety module, the rope breaking triggering module and the jacking stopping module are arranged on the lifting platform;
the energy storage safety module, the rope breakage triggering module and the jacking stop module are all fixed on the outer side of the trolley beam, the energy storage safety module is connected with the rope breakage triggering module through a hydraulic rubber tube, and the rope breakage triggering module is connected with the jacking stop module through a hydraulic rubber tube;
the energy storage safety module is used for charging hydraulic oil into the energy accumulator according to a certain pressure and locking the hydraulic oil to provide a jacking power source;
the rope breaking triggering module is used for releasing the pressure of the energy accumulator into the jacking stopping module when a rope is broken;
the jacking stop module is used for realizing the rope breaking stop of the amplitude variable trolley by the lifting of the jacking stop rod.
Further, the energy storage safety module comprises an energy accumulator and an energy storage safety block, the energy accumulator is installed at the upper end of the energy storage safety block, and the energy storage safety block is connected with the rope breaking triggering module through a hydraulic rubber pipe.
Further, disconnected rope trigger module includes mounting bracket, gravity piece and two lead to zero leakage valves, the track has all been seted up to the mounting bracket both sides, the gravity piece passes through the rail mount in the middle of the mounting bracket, the welding of gravity piece upper end has the go-between, and the wire rope of the dolly that becomes width of cloth passes in the middle of the go-between.
Further, two lead to zero leakage valve are located the gravity piece downside, two lead to zero leakage valve both ends and be connected with energy storage safety module and jacking locking module respectively.
Further, jacking stop module includes mount pad, jacking cylinder and jacking check rod, jacking cylinder fixes at the mount pad lower extreme, jacking check rod is located the mount pad upper end, jacking check rod lower extreme is connected with jacking cylinder's output shaft upper end.
Furthermore, a jacking sleeve is fixed at the upper end of the mounting seat and sleeved outside the jacking stop rod.
The invention also aims to provide a hydraulic rope breaking stopping method for the tower crane luffing trolley, which comprises the following steps:
step one, inflating an energy accumulator, and then inflating the inflated energy accumulator into a certain amount of hydraulic oil with a certain pressure;
step two, when the steel wire rope is broken, the gravity block of the broken rope triggering module presses down the two-position two-way zero-leakage valve along the track of the mounting frame under the action of gravity;
thirdly, hydraulic oil flowing out of an outlet of the two-position two-way zero-leakage valve flows into a jacking oil cylinder of the jacking stop module, and the jacking oil cylinder jacks up a jacking stop rod to play a role in protecting the amplitude-variable trolley from rope breakage;
and step four, when the amplitude variation trolley returns to normal operation, the jacking stop rod of the jacking stop module is pressed down, so that hydraulic oil in the jacking oil cylinder is recharged into the energy accumulator, the steel wire rope of the amplitude variation trolley lifts the gravity block in the rope breaking trigger module to a certain height, the two-position two-way zero-leakage valve is reset under the action of the spring, the hydraulic oil in the energy accumulator is locked, the jacking oil cylinder is in a falling state, and the jacking stop rod is recovered.
By combining all the technical schemes, the invention has the advantages and positive effects that: the invention applies a hydraulic control mode, has reliable rope breaking protection, simple structure and convenient installation and adjustment, and overcomes the phenomenon that the amplitude-variable trolley can not effectively stop because the traction steel wire rope is suddenly broken in the operation process of the traditional tower crane amplitude-variable double trolley and the traditional single trolley. The hydraulic system is adopted to drive the jacking device, so that the locking effect is reliable and convenient.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained from the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a hydraulic rope breaking stopping device of a tower crane luffing trolley provided by the embodiment of the invention.
Fig. 2 is a schematic structural diagram of an energy storage safety module provided in an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a rope break triggering module according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a jacking stop module according to an embodiment of the present invention.
Fig. 5 is a hydraulic schematic provided by an embodiment of the present invention.
In the figure: 1. an energy storage safety module; 11. an accumulator; 12. an energy storage safety block; 2. a rope breakage triggering module; 21. a gravity block; 22. a two-position two-way zero-leakage valve; 23. a mounting frame; 24. a wire rope; 3. jacking stop modules; 31. jacking a stop rod; 32. jacking sleeve; 33. a jacking oil cylinder; 34. a mounting seat; 4. a trolley beam; 5. a hydraulic rubber hose.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Aiming at the problems in the prior art, the invention provides a hydraulic rope breaking stopping device and a hydraulic rope breaking stopping method for a tower crane luffing trolley, and the hydraulic rope breaking stopping device and the hydraulic rope breaking stopping method are described in detail below with reference to the attached drawings.
As shown in fig. 1, the hydraulic rope breaking stopping device for the tower crane luffing trolley provided by the embodiment of the invention comprises an energy storage safety module 1, a rope breaking triggering module 2 and a jacking stopping module 3.
The energy storage safety module 1, the rope breakage triggering module 2 and the jacking stopping module 3 are all fixed on a trolley beam 4, the energy storage safety module 1 is connected with the rope breakage triggering module 2 through a hydraulic rubber tube 5, and the rope breakage triggering module 2 is connected with the jacking stopping module 3 through a hydraulic rubber tube.
As shown in fig. 2, the energy storage safety component provided in the embodiment of the present invention includes an energy storage device 11 and an energy storage safety block 12, the energy storage device 11 is installed at the upper end 12 of the energy storage safety block, the energy storage safety block 12 is provided with an oil port, the oil port is connected to a rope breakage triggering module through a hydraulic rubber tube, and the energy storage device mainly functions to charge hydraulic oil into the energy storage device according to a certain pressure and lock the hydraulic oil to provide a jacking power source.
As shown in fig. 3, two symmetrical long rails are respectively arranged on two sides of an installation frame 23 in the rope break triggering module 2 provided by the embodiment of the present invention, a gravity block 21 is connected in the middle of the rails through a sliding manner, a two-position two-way zero-leakage valve 22 is fixed on the lower side of the gravity block 21, a connection ring is welded on the upper end of the gravity block 21, and a steel wire rope 24 passes through the connection ring.
As shown in fig. 4, the jacking stop module provided in the embodiment of the present invention is composed of a jacking stop rod 31, a jacking sleeve 32, a jacking cylinder 33, and a component mounting seat 34, wherein the component mounting seat 34 is fixedly connected to a trolley cross beam through a bolt, the jacking sleeve 32 is welded to the mounting seat 34, the jacking stop rod 31 is embedded in the jacking sleeve 32, and an oil port is provided at a lower end of the jacking cylinder 33.
When the hydraulic rope breaking stopping device for the tower crane luffing trolley provided by the embodiment of the invention is used, the energy accumulator is firstly inflated, then the inflated energy accumulator is inflated with a certain amount of hydraulic oil under a certain pressure, when the steel wire rope is broken, the broken rope triggers the gravity block of the module, the two-position two-way zero-leakage valve is pressed down along the track under the action of gravity, at the moment, the hydraulic oil flowing out of the outlet of the two-position two-way zero-leakage valve flows into the jacking oil cylinder of the jacking stopping module, and the jacking oil cylinder jacks the jacking stopping rod to play a role in protecting the luffing trolley from rope breaking. When the lifting device normally operates, a lifting stop rod of the lifting stop module is pressed down forcibly (only by hand pressing), so that hydraulic oil in the lifting oil cylinder is refilled into the energy accumulator, a steel wire rope of the amplitude-variable trolley lifts a heavy block in the rope breaking component to a certain height, at the moment, the two-position two-way valve with zero leakage locks (closes) the hydraulic oil in the energy accumulator under the action of the spring, the lifting oil cylinder is in a falling state, and the lifting stop rod is recycled.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The above description is only for the purpose of illustrating the present invention and the appended claims are not to be construed as limiting the scope of the invention, which is intended to cover all modifications, equivalents and improvements that are within the spirit and scope of the invention as defined by the appended claims.

Claims (7)

1. The hydraulic rope breaking stopping device for the tower crane luffing trolley is characterized by comprising:
the energy storage safety module, the rope breaking triggering module and the jacking stopping module are arranged on the lifting platform;
the energy storage safety module, the rope breakage triggering module and the jacking stop module are all fixed on the outer side of the trolley beam, the energy storage safety module is connected with the rope breakage triggering module through a hydraulic rubber tube, and the rope breakage triggering module is connected with the jacking stop module through a hydraulic rubber tube;
the energy storage safety module is used for charging hydraulic oil into the energy accumulator according to a certain pressure and locking the hydraulic oil to provide a jacking power source;
the rope breaking triggering module is used for releasing the pressure of the energy accumulator into the jacking stopping module when a rope is broken;
the jacking stop module is used for realizing the rope breaking stop of the amplitude variable trolley by the lifting of the jacking stop rod.
2. The hydraulic rope breaking stopping device of the tower crane luffing trolley according to claim 1, wherein the energy storage safety module comprises an energy accumulator and an energy storage safety block, the energy accumulator is mounted at the upper end of the energy storage safety block, and the energy storage safety block is connected with the rope breaking triggering module through a hydraulic rubber pipe.
3. The hydraulic rope breaking stopping device of the tower crane luffing trolley according to claim 1, wherein the rope breaking triggering module comprises a mounting frame, a gravity block and a two-position two-way zero leakage valve, rails are arranged on two sides of the mounting frame, the gravity block is mounted in the middle of the mounting frame through the rails, a connecting ring is welded at the upper end of the gravity block, and a steel wire rope of the luffing trolley penetrates through the middle of the connecting ring.
4. The hydraulic rope breaking stopping device for the tower crane luffing trolley according to claim 3, wherein the two-position two-way zero-leakage valve is located on the lower side of the gravity block, and two ends of the two-position two-way zero-leakage valve are respectively connected with the energy storage safety module and the jacking stopping module.
5. The hydraulic rope breaking stopping device for the tower crane luffing trolley according to claim 1, wherein the jacking stopping module comprises a mounting seat, a jacking cylinder and a jacking stopping rod, the jacking cylinder is fixed at the lower end of the mounting seat, the jacking stopping rod is positioned at the upper end of the mounting seat, and the lower end of the jacking stopping rod is connected with the upper end of an output shaft of the jacking cylinder.
6. The hydraulic rope breaking stopping device for the tower crane luffing trolley according to claim 5, wherein a jacking sleeve is fixed at the upper end of the mounting seat and sleeved outside the jacking stopping rod.
7. The hydraulic rope breaking stopping method of the tower crane luffing trolley for implementing the hydraulic rope breaking stopping device of the tower crane luffing trolley according to any one of claims 1 to 6 is characterized by comprising the following steps of:
step one, inflating an energy accumulator, and then inflating the inflated energy accumulator into a certain amount of hydraulic oil with a certain pressure;
step two, when the steel wire rope is broken, the gravity block of the broken rope triggering module presses down the two-position two-way zero-leakage valve along the track of the mounting frame under the action of gravity;
thirdly, hydraulic oil flowing out of an outlet of the two-position two-way zero-leakage valve flows into a jacking oil cylinder of the jacking stop module, and the jacking oil cylinder jacks up a jacking stop rod to play a role in protecting the amplitude-variable trolley from rope breakage;
and step four, when the amplitude variation trolley returns to normal operation, the jacking stop rod of the jacking stop module is pressed down, so that hydraulic oil in the jacking oil cylinder is recharged into the energy accumulator, the steel wire rope of the amplitude variation trolley lifts the gravity block in the rope breaking trigger module to a certain height, the two-position two-way zero-leakage valve is reset under the action of the spring, the hydraulic oil in the energy accumulator is locked, the jacking oil cylinder is in a falling state, and the jacking stop rod is recovered.
CN202111520864.2A 2021-12-13 2021-12-13 Hydraulic rope breaking stopping device and method for tower crane luffing trolley Pending CN114014190A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111520864.2A CN114014190A (en) 2021-12-13 2021-12-13 Hydraulic rope breaking stopping device and method for tower crane luffing trolley

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111520864.2A CN114014190A (en) 2021-12-13 2021-12-13 Hydraulic rope breaking stopping device and method for tower crane luffing trolley

Publications (1)

Publication Number Publication Date
CN114014190A true CN114014190A (en) 2022-02-08

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ID=80068474

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111520864.2A Pending CN114014190A (en) 2021-12-13 2021-12-13 Hydraulic rope breaking stopping device and method for tower crane luffing trolley

Country Status (1)

Country Link
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