CN107055335A - A kind of dead-weight lifting altitude position-limit mechanism, crane and method - Google Patents
A kind of dead-weight lifting altitude position-limit mechanism, crane and method Download PDFInfo
- Publication number
- CN107055335A CN107055335A CN201710428723.5A CN201710428723A CN107055335A CN 107055335 A CN107055335 A CN 107055335A CN 201710428723 A CN201710428723 A CN 201710428723A CN 107055335 A CN107055335 A CN 107055335A
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- China
- Prior art keywords
- deadweight
- shell
- fixed pedestal
- contact end
- wire
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- 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.)
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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
- B66C15/00—Safety gear
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention discloses a kind of dead-weight lifting altitude position-limit mechanism, crane and method, it solves the problem of Weight type in the prior art is spacing to be necessarily mounted at directly over fag end, the limitation of stopping means installation site is solved, security is improved, its scheme is as follows：A kind of dead-weight lifting altitude position-limit mechanism includes fixed pedestal, and fixed pedestal, which is provided with the middle part of fixed pedestal wire contact end, fixed pedestal to be provided with, is used for the atrium that lifting mechanism raising line is passed through；Shell is hung from the outside deadweight for covering fixed pedestal, deadweight is hung and hangs shell wire contact end provided with deadweight on the inside of shell, deadweight hang shell wire contact end during suspender is moved up with fixed pedestal conductive contact end in contact, and deadweight hangs shell wire contact end with being respectively connected with wire at fixed pedestal wire contact end, wire is connected to controller.
Description
Technical field
The present invention relates to the spacing field of lifting altitude, more particularly to a kind of dead-weight lifting altitude position-limit mechanism, lifting
Machine and method.
Background technology
Device for limiting lifting attitude of winding is widely used on hoisting machinery as the important part of crane, and crane rises
Rise is spacing can to detect lift heavy lifting altitude, it is ensured that safety.
Lifting altitude is spacing to be used cooperatively with the cam limit switch on cable drum when in use, prevents raising suspension hook
Unrestricted winding, causes the accident, plays a part of double insurance.But used Weight type is spacing in various lift heavys at this stage
Under work condition environment, there is potential safety hazard, mostly occur weight falling accident, and Weight type needs bracing wire to coordinate counterweight to complete out
Pass is acted, in reality bracing wire with wire rope roll together with, it is easy to breaking wire drawing causes weight to drop to be extruded to pulley
Between steel wire rope, the weight falling from high altitude after being extruded, and weight-driven lays space harshness, there is serious safety hidden
Suffer from, production work and property to enterprise cause serious threat.
Therefore, the reliability and security for improving device for limiting lifting attitude of winding in the prior art are asking for current urgent need to resolve
Topic.
The content of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of dead-weight lifting altitude position-limit mechanism, this is spacing
Mechanism execution action without other external force, it is simple, easy, reliable, solve that Weight type is spacing and must lay in directly over fag end
And counterweight limit device actuating length the drawback such as is influenceed by other arrangement of mechanism of periphery, solves stopping means installation site
Limitation, improves security.
A kind of concrete scheme of dead-weight lifting altitude position-limit mechanism is as follows：
A kind of dead-weight lifting altitude position-limit mechanism, including：
Fixed pedestal, fixed pedestal, which is provided with to be provided with the middle part of fixed pedestal wire contact end, fixed pedestal, is used for lifting machine
The atrium that structure raising line is passed through, and fixed pedestal fixes with raising line；
Shell is hung from the outside deadweight for covering fixed pedestal, deadweight is hung and hangs shell wire contact end provided with deadweight on the inside of shell, conducts oneself with dignity
Hang shell wire contact end during suspender is moved up with fixed pedestal conductive contact end in contact, and deadweight hang shell wire contact end with
Wire is respectively connected with fixed pedestal wire contact end, wire is connected to controller.
Under gravity, when suspender is during rising or decline, deadweight is hung shell and contacted with fixed pedestal, from
Hang shell wire contact end again to keep contacting with fixed pedestal wire contact end, the circuit of wire connection is channel status, by controlling
Device detects to the current signal of channel status, when deadweight hangs shell under external force, be subjected to displacement (i.e. bottom be not affected by
Upper holding power), fixed pedestal wire contact end hangs the disengaging of shell wire contact end with deadweight, and controller detects the change of current signal
Change, that is to say, that whether controller relies in loop fixed pedestal wire contact end with deadweight to hang shell wire contact end and contact and obtain
Logical relation is so as to realize limit function.
Hang shell for fixed pedestal and deadweight and contact and reliably or quickly successfully depart from, the fixed pedestal is in truncated cone-shaped
Shape, or cone shape, correspondingly, deadweight hang and are similarly conical by its shape at the top of shell inner surface, are easy to the cooperation of the two.
Mounting groove is provided with fixed pedestal sidepiece, mounting groove is used to install fixed pedestal wire contact end, the fixed base
Seat wire contact end is in the annular element with opening, shell interior contact area is so hung with deadweight big.
The fixed pedestal bottom is provided with the fixed pedestal connecting hole for being used for clamping raising line, and fixed pedestal includes at least two
Half, two halves splicing is set around described steel wire rope, if fixed pedestal is two halves, each half inner side is equipped with the chamber of semi arch
Body, after the two halves of fixed pedestal are clamped in into raising line, is connected pedestal using bolt by fixed pedestal connecting hole
Two halves.
The fixation of shell is hung to deadweight for convenience, shell is hung in the deadweight includes at least two halves, two halves are spliced to form deadweight and hung
Cylindrical shape outside shell is hung in shell, deadweight, and deadweight hangs the height of shell and is greater than the height of fixed pedestal, and deadweight hangs shell from outside
Fixed pedestal is covered, deadweight hangs shell bottom and sets shrouding.
The deadweight, which hangs shell and is provided with waist round hole and hung for wire from deadweight in shell, to be passed.
The through hole being provided with the top of shell more than or equal to raising line diameter is hung in the deadweight, is easy to deadweight to hang shell by itself weight
Power or bottom support force are moved along raising line such as steel wire rope.
Controller is in control cabinet, and control cabinet can be located in the frame of lifting mechanism, or ground, the controller
It is connected with the controlling switch of lifting mechanism.
In order to overcome the deficiencies in the prior art, present invention also offers a kind of crane, it is connected with raising line described
A kind of dead-weight lifting altitude position-limit mechanism.
In order to overcome the deficiencies in the prior art, present invention also offers a kind of spacing method of lifting height of crane, step
It is rapid as follows：
1) a kind of described dead-weight lifting altitude position-limit mechanism is set on a steel cord, and the mechanism is quiet located at steel wire rope
Not-go-end portion；
2) during the normal raising of crane, deadweight is hung shell and contacted under gravity with fixed pedestal, and wire is to connect
Logical, the current signal that controller is detected represents that whole circuit is path, lifting altitude is spacing to be closed, lifting
Machine continues raising；
3) when suspender rises to setting height, deadweight is hung shell and held up by rope tool, and shell wire contact end and fixed base are hung in deadweight
Seat wire contact end departs from, and the current signal detected in controller is zero, represents that circuit is off state, controller is controlled
Heavy-duty machine stops raising, it is allowed to which crane declines.
Compared with prior art, the beneficial effects of the invention are as follows：
1) present invention deadweight hangs shell and uses self gravitation to be fitted with fixed pedestal to cause mutual conductive contact end in contact,
Raising up action is not limited during current path；Deadweight hang shell by lower end rise rope tool hold up when separated with fixed pedestal so that
Wire contact end departs from each other, and raising up action is limited during current interruption.
2) fixed pedestal can be directly mounted at the stationary end of steel wire rope, and execution is acted without other external force, simple, easy
Row, reliable, safety.
3) the limit switch control cabinet in the present invention can be with the optional position of fixedly secured middle crane, it is only necessary to will draw
Wire is connected can complete current switching detection so as to which whether logic judgment allows suspender vertical motion into limit switch control cabinet
Proceed, predominantly detect the steel wire rope fixing end that part is fixed on pendency, fag end in solving that Weight type is spacing and must laying
Surface and counterweight limit device actuating length the drawback such as are influenceed by other arrangement of mechanism of periphery, solve position-limit mechanism installation
The limitation of position, improves security.
4) fixed pedestal and deadweight in the present invention hangs shell using light materials such as nylon, plastics, low from heavy and light cost.
5) wire contact end in patent of the present invention is using the good conductor metal material of the electricity such as copper, corrosion-resistant, wear-resisting, conduction
Ability is reliable, improves the reliability of lifting altitude position-limit mechanism.
Brief description of the drawings
The Figure of description for constituting the part of the application is used for providing further understanding of the present application, and the application's shows
Meaning property embodiment and its illustrate be used for explain the application, do not constitute the improper restriction to the application.
Fig. 1 is the structural representation one of patent dead-weight device for limiting lifting attitude of winding of the present invention；
Fig. 2 is the structural representation two of patent dead-weight device for limiting lifting attitude of winding of the present invention；
Fig. 3 is the upward view of fixed pedestal of the present invention；
Fig. 4 is the sectional view of fixed pedestal of the present invention；
Fig. 5 is the side view of fixed pedestal of the present invention；
Fig. 6 is the top view of fixed pedestal of the present invention；
Fig. 7 is the upward view that shell is hung in present invention deadweight；
Fig. 8 is the schematic view of the mounting position that a kind of dead-weight lifting altitude position-limit mechanism of the invention is located at crane；
Wherein：1-fixed pedestal, 11-fixed pedestal wire contact end, 12-fixed pedestal wire, 13-fixed pedestal screw thread
Shell is hung in connecting hole, 2-deadweight, and shell wire is hung in 21-deadweight, and shell wire contact end is hung in 22-deadweight, and shell threaded connection is hung in 23-deadweight
Hole, 3-limit switch control cabinet, a kind of dead-weight lifting altitude position-limit mechanisms of 4-.
Embodiment
It is noted that described further below is all exemplary, it is intended to provide further instruction to the application.Unless another
Indicate, all technologies used herein and scientific terminology are with usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
As background technology is introduced, the deficiencies in the prior art, in order to solve technical problem as above, this Shen
It please propose a kind of dead-weight lifting altitude position-limit mechanism, crane and method.
In a kind of typical embodiment of the application, as depicted in figs. 1 and 2, a kind of dead-weight lifting altitude position restrainer
Shell 2 is hung in structure, including fixed pedestal 1 and deadweight；Fixed pedestal 1 uses two-piece type structure, using screws clamp on steel wire rope, makes
It must fix and more fasten, it is convenient to be carried out after Wirerope reeving construction, it is easy for installation；Deadweight hangs shell 2 and uses two-piece type structure, makes
After mode connects for screw two panels, it is buckled on fixed pedestal 1 so that two panels is tightly combined, safe dependence fixed pedestal 1 is supported,
It is convenient to be carried out after Wirerope reeving construction, it is easy for installation.
Fixed pedestal 1 is provided with fixed pedestal threaded connection hole 13, as shown in figure 3, for being fixed with steel wire rope, fixed pedestal
1 can be directly mounted at the stationary end of steel wire rope or, its fixing point is set close to the static end of steel wire rope, fixed pedestal 1
Provided with fixed pedestal wire contact end 11, for being connected with fixed pedestal wire 12；Fixed pedestal wire contact end 11 is also used for
Shell wire contact end 22 is hung with deadweight to contact or disconnect；
Deadweight hangs shell 2 and hangs shell threaded connection hole 23 provided with deadweight, connects integral for two panels deadweight is hung into shell 2, so that
It is stuck on fixed pedestal 1, when the bottom of shell 2 is hung in deadweight is not produced upward displacement by upward external force, with fixed pedestal 1
Coordinate；Deadweight hangs shell 2 and hangs shell wire contact end 22 provided with deadweight, is connected for hanging shell wire 21 with deadweight；Shell wire is hung in deadweight
Contact jaw 22 is also used for contacting or disconnecting with fixed pedestal wire contact end 11；
Deadweight is hung shell 2 and is buckled on fixed pedestal 1, is supported by fixed pedestal 1, now fixed pedestal wire contact end 11 with
Deadweight is hung shell wire contact end 22 and contacted；
After the upward holding power of suspender that the bottom of shell 2 risen is hung in deadweight produces displacement, deadweight is hung shell 2 and moved up,
Separated so that fixed pedestal wire contact end 11 hangs shell wire contact end 22 with deadweight.
As Figure 4-Figure 6, fixed pedestal wire contact end 11 uses opening circular ring structure form, to ensure fixed pedestal
It is easy to pedestal wire contact end 11 to install after 1 installation, and fixed pedestal wire contact end 11 and deadweight is conducive to using annulus
Hang the contact of shell wire contact end 22, it is ensured that electric current is passed through, and still keep two contacts to terminate when steel wire rope is rocked
Touch；
It is annular chip architecture that shell wire contact end 22 is hung in deadweight, is pasted on deadweight and hangs the upper inside surface of shell 2, for fixation
Pedestal wire contact end 11 is contacted, and is conducive to deadweight to hang shell wire contact end 22 and fixed pedestal conductive contact using slice structure
End 11 is contacted, it is ensured that electric current is passed through, and still keeps when steel wire rope is rocked two contact end in contact；
Deadweight hangs the upper and lower ends of shell 2 and is equipped with the circular hole more slightly larger than wirerope diameter, for causing deadweight to hang above and below in shell 2
Movable type ensures moving direction and steel wire rope diameter parallel so that it is not skewed that shell 2 is hung in deadweight；Deadweight hangs shell 2 provided with waist round hole
24, for causing the smoothly extraction of fixed pedestal wire 12, as shown in Figure 2.
Fixed pedestal 1, deadweight hang shell 2 using material using the light material such as nylon, plastics, corrosion-resistant, from heavy and light.
Shell wire contact end 22 and good conductor metal of the material of fixed pedestal wire contact end 11 using the electricity such as copper are hung in deadweight
Material, corrosion-resistant, wear-resisting, conductive capability is reliable, improves the reliability of lifting altitude position-limit mechanism.
Fixed pedestal 1, deadweight hang the mating surface of shell 2 and use cone, as shown in Figure 4, it is ensured that shell 2 is hung in fixed pedestal 1, deadweight
The reliability for departing from or contacting；
Fixed pedestal wire 12, for pedestal wire contact end 11 and the control in limit switch control cabinet of being connected
Device；Shell wire 21 is hung in deadweight, and shell wire contact end 22 and the controller in limit switch control cabinet are hung for connecting deadweight.
Deadweight hangs shell 2 without displacement (i.e. bottom is not affected by upward holding power), fixed pedestal wire contact end 11 and deadweight
Shell wire contact end 22 is hung to contact；Deadweight hangs shell 2 and is subjected to displacement (i.e. bottom is by upward holding power), fixed pedestal conductive contact
Shell wire contact end 22 is hung with deadweight and is departed from end 11；Deadweight is hung when the bottom holding power being subject to disappears in shell 2, by self gravitation
Move down, return to and hang shell wire contact end 22 with the mated condition of fixed pedestal 1, pedestal wire contact end 11 with deadweight and recover
Contact.
As shown in figure 8, the invention also discloses second embodiment：A kind of crane, is connected with described in raising line
A kind of dead-weight lifting altitude position-limit mechanism 4, the mechanism is installed on the stagnant end of steel wire rope, or has setting apart from the end
Distance, such as 20cm, the end fixed, and Fig. 8 intermediate cam shapes represent the fixing point of steel wire rope, the mechanism include fixed pedestal,
Shell and limit switch control cabinet 3 are hung in deadweight, and limit switch control cabinet 3 can be placed as required on any suitable position.When solid
Determine pedestal wire contact end 11 and hang shell wire contact end 22 with deadweight to contact, the signal obtained in limit switch control cabinet is electric current
For path, lifting altitude is spacing to be closed (permission raising)；Shell is hung when fixed pedestal wire contact end 11 and deadweight to lead
Linear contact lay end 22 is with departing from, and the signal obtained in limit switch control cabinet is that electric current is open circuit, and lifting altitude is spacing in opening
State (forbids raising, it is allowed to decline).
The structure setting that fixed pedestal, deadweight are hung in the structure and embodiment one of shell is identical.
Present invention also offers embodiment three：
A kind of spacing method of lifting height of crane, step is as follows：
1) a kind of described dead-weight lifting altitude position-limit mechanism is set on a steel cord；
2) during the normal raising of crane, deadweight is hung shell and contacted under gravity with fixed pedestal, and wire is to connect
Logical, the current signal that controller is detected represents that whole circuit is path, lifting altitude is spacing to be closed, lifting
Machine continues raising；
3) when crane rises to setting height, deadweight is hung shell and held up by rope tool, and shell wire contact end and fixation are hung in deadweight
Pedestal wire contact end departs from, and the current signal detected in controller is zero, and it is off state, controller control to represent circuit
Crane stops raising, it is allowed to which crane declines.
The preferred embodiment of the application is the foregoing is only, the application is not limited to, for the skill of this area
For art personnel, the application can have various modifications and variations.It is all within spirit herein and principle, made any repair
Change, equivalent substitution, improvement etc., should be included within the protection domain of the application.
Claims (10)
1. a kind of dead-weight lifting altitude position-limit mechanism, it is characterised in that including：
Fixed pedestal, fixed pedestal is provided with to be provided with the middle part of fixed pedestal wire contact end, fixed pedestal and risen for lifting mechanism
Rise rope through atrium, and fixed pedestal fixes with raising line；
Shell is hung from the outside deadweight for covering fixed pedestal, deadweight hangs shell inner side and hangs shell wire contact end provided with deadweight, and shell is hung in deadweight
Wire contact end during suspender is moved up with fixed pedestal conductive contact end in contact, and deadweight hang shell wire contact end and fixation
Wire is respectively connected with pedestal wire contact end, wire is connected to controller.
2. a kind of dead-weight lifting altitude position-limit mechanism according to claim 1, it is characterised in that the fixed pedestal is in
Truncated conical shape.
3. a kind of dead-weight lifting altitude position-limit mechanism according to claim 2, it is characterised in that the fixed pedestal is led
Linear contact lay end is in the annular element with opening.
4. a kind of dead-weight lifting altitude position-limit mechanism according to claim 1 or 3, it is characterised in that the fixed base
Seat bottom is provided with the fixed pedestal connecting hole for being used for clamping raising line；
Further, fixed pedestal includes at least two halves, and two halves splicing is set around described steel wire rope.
5. a kind of dead-weight lifting altitude position-limit mechanism according to claim 1, it is characterised in that shell bag is hung in the deadweight
At least two halves are included, two halves are spliced to form deadweight and hang shell, and cylindrical shape outside shell is hung in deadweight.
6. a kind of dead-weight lifting altitude position-limit mechanism according to claim 1, it is characterised in that the deadweight is hung shell and opened
There is waist round hole to hang in shell from deadweight for wire to pass.
7. a kind of dead-weight lifting altitude position-limit mechanism according to claim 1, it is characterised in that hang shell in the deadweight
Top is provided with the through hole more than or equal to raising line diameter.
8. a kind of dead-weight lifting altitude position-limit mechanism according to claim 1, it is characterised in that the controller is with rising
Rise the controlling switch connection of mechanism.
9. a kind of crane, it is characterised in that one kind according to any one of claim 1-8 is connected with raising line
Dead-weight lifting altitude position-limit mechanism.
10. a kind of spacing method of lifting height of crane, it is characterised in that step is as follows：
1) a kind of dead-weight lifting altitude position-limit mechanism as any one of claim 1-8 is set on a steel cord；
2) during the normal raising of crane, deadweight is hung shell and contacted under gravity with fixed pedestal, and wire is connection,
The current signal that controller is detected, represents that whole circuit is path, lifting altitude is spacing to be closed, crane continues
Raising；
3) when crane rises to setting height, deadweight is hung shell and held up by rope tool, and shell wire contact end and fixed pedestal are hung in deadweight
Wire contact end departs from, and the current signal detected in controller is zero, and it is off state, controller control lifting to represent circuit
Machine stops raising, it is allowed to which crane declines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710428723.5A CN107055335B (en) | 2017-06-08 | 2017-06-08 | A kind of dead-weight lifting altitude position-limit mechanism, crane and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710428723.5A CN107055335B (en) | 2017-06-08 | 2017-06-08 | A kind of dead-weight lifting altitude position-limit mechanism, crane and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107055335A true CN107055335A (en) | 2017-08-18 |
| CN107055335B CN107055335B (en) | 2018-09-14 |
Family
ID=59617517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710428723.5A Active CN107055335B (en) | 2017-06-08 | 2017-06-08 | A kind of dead-weight lifting altitude position-limit mechanism, crane and method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06271282A (en) * | 1993-03-22 | 1994-09-27 | Hitachi Constr Mach Co Ltd | Detecting device for hook overwind |
| CN2441786Y (en) * | 2000-10-13 | 2001-08-08 | 高卫华 | Safety level limiter for crane |
| CN2723415Y (en) * | 2004-07-05 | 2005-09-07 | 福建省农业机械化研究所 | Height limiter for hoist machinery |
| CN202558485U (en) * | 2012-04-24 | 2012-11-28 | 陈小琦 | Top-reaching-proof device of crane |
| CN204173790U (en) * | 2014-10-30 | 2015-02-25 | 山东钢铁股份有限公司 | A kind of suspension type limit switch |
| CN206901610U (en) * | 2017-06-08 | 2018-01-19 | 青岛海西重机有限责任公司 | A kind of dead-weight lifting altitude position-limit mechanism and crane |
-
2017
- 2017-06-08 CN CN201710428723.5A patent/CN107055335B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06271282A (en) * | 1993-03-22 | 1994-09-27 | Hitachi Constr Mach Co Ltd | Detecting device for hook overwind |
| CN2441786Y (en) * | 2000-10-13 | 2001-08-08 | 高卫华 | Safety level limiter for crane |
| CN2723415Y (en) * | 2004-07-05 | 2005-09-07 | 福建省农业机械化研究所 | Height limiter for hoist machinery |
| CN202558485U (en) * | 2012-04-24 | 2012-11-28 | 陈小琦 | Top-reaching-proof device of crane |
| CN204173790U (en) * | 2014-10-30 | 2015-02-25 | 山东钢铁股份有限公司 | A kind of suspension type limit switch |
| CN206901610U (en) * | 2017-06-08 | 2018-01-19 | 青岛海西重机有限责任公司 | A kind of dead-weight lifting altitude position-limit mechanism and crane |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107055335B (en) | 2018-09-14 |
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