CN102285604A - Single-joint winding drum hoisting mechanism with over-load protection device - Google Patents
Single-joint winding drum hoisting mechanism with over-load protection device Download PDFInfo
- Publication number
- CN102285604A CN102285604A CN2011101480587A CN201110148058A CN102285604A CN 102285604 A CN102285604 A CN 102285604A CN 2011101480587 A CN2011101480587 A CN 2011101480587A CN 201110148058 A CN201110148058 A CN 201110148058A CN 102285604 A CN102285604 A CN 102285604A
- Authority
- CN
- China
- Prior art keywords
- winding drum
- hoisting mechanism
- coupler
- drum shaft
- reel
- 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
Links
Images
Abstract
The invention discloses a single-joint winding drum hoisting mechanism with an overload protection device, and relates to the hoisting and conveying machinery. The invention solves the problem that the single-joint winding drum hoisting mechanism with a special structure cannot meet the over-load prevention requirement of a crane hoisting mechanism. The single-joint winding drum hoisting mechanism comprises a speed reducer that is driven by a motor and transmitted by a coupler, a floating shaft and a brake, a winding drum connected with an output shaft of the speed reducer, a rotary limiting switch arranged at a shaft end of the winding drum, and a load sensor; the single-joint winding drum hoisting mechanism is characterized in that the load sensor is arranged between a winding drum bearing seat and a supporting seat, the winding drum bearing seat is connected with a hoisting height encoder through the coupler, the hoisting height coupler is mounted on a bracket and is connected with the winding drum bearing seat through a bolt. The single-joint winding drum hoisting mechanism is suitable for a crane with a special structure, has the advantages of simple structure and low cost and is easy to manufacture and safe and reliable.
Description
Technical field
The invention belongs to handling machinery, particularly a kind of lifting mechanism that adopts the simply connected reel.
Background technology
Crane hoisting mechanism, adopt the shortcoming of simply connected reel to be: steel rope acts on the stress point on the reel, and the height that promotes with weight changes, and wants to prevent the lifting mechanism overload, load cell must be located on the bearing of assembly pulley or compensating bar.But in the special lifting mechanism of structure (as the lifting mechanism of forging crane), load cell can only be arranged on the reel bearing.Because the stressed of load cell be a variable, according to conventional structure, adopt this stressed load cell of variable that is, be can't satisfy crane hoisting mechanism to prevent the requirement that overloads.
Summary of the invention
The objective of the invention is to overcome the shortcoming of prior art; a kind of simply connected reel lifting mechanism with overload protection device is provided; solving in the special simply connected reel lifting mechanism of structure, only adopt load cell, is to satisfy crane hoisting mechanism prevent from the to overload problem of requirement.
The present invention is achieved through the following technical solutions:
A kind of simply connected reel lifting mechanism with overload protection device; comprise: by direct motor drive; retarder through coupler, floating axle, drg transmission; the reel that connects with reducer output shaft; be arranged on the rotary stopper switch of reel axle head; and load cell; it is characterized in that: described load cell is located between drum shaft bearing and the supporting base; described drum shaft bearing links by coupler and lifting altitude coder; described lifting altitude coder is rack-mount, and combines as a whole by bolt and described drum shaft bearing.
Be provided with bearing in the described drum shaft bearing, drum shaft is connected as a single entity with bolt and door.
Principle of work of the present invention and advantage and beneficial effect:
The present invention is by introducing this variable of load lifting altitude H, solve in the special simply connected reel lifting mechanism of structure, can't satisfy lifting mechanism and prevent to overload and require problem.
As shown in Figure 5, the power of bearing on the load cell is: R=LP/L
1
When the stressed P of steel rope was in position L on the reel, cooresponding load lifting altitude was H, and L and H are linear relationship, i.e. L=KH, and wherein K is a constant.Hence one can see that: R=kHP/L
1
The parameter of picked-up is changed into: R/H, as can be known: R/H=kP/L
1=CP, wherein constant C=K/L
1
It is linear that the parameters R/H that gets just becomes the function and the hoisting capacity of lineoutofservice signal pull like this, by setting rated value, thereby can realize the overload protection to lifting mechanism.
The present invention is applicable to that hoisting crane adopts in the lifting mechanism of simply connected reel, and load cell can only be contained in the structure on the drum shaft bearing.Because lifting mechanism also needs to be provided with simultaneously rotary stopper, and load cell, lifting altitude coder and rotary stopper switch must be set in the above-mentioned lifting mechanism.The present invention compares with traditional lifting mechanism, has increased the data processing function of lifting altitude coder and electric control system.The advantage that the present invention has is simple in structure, be easy to make, cost is low, safe and reliable.
Description of drawings
Fig. 1 is structural representation of the present invention (birds-eye view);
Fig. 2 is that the A of Fig. 1 is to view;
Fig. 3 is that the B of Fig. 1 is to view;
Fig. 4 is that the C of Fig. 3 is to view;
Fig. 5 is the force diagram of load cell.
The specific embodiment
As Fig. 1; 2; 3; shown in 4; a kind of simply connected reel lifting mechanism with overload protection device; comprise: drive by electrical motor 5; through coupler 6; floating axle 7; the retarder 2 of drg 8 transmissions; the reel 1 that connects with retarder 2 output shafts; be arranged on the rotary stopper switch 3 of reel 1 axle head; and load cell 9; described load cell 9 is located between drum shaft bearing 15 and the supporting base 10; described drum shaft bearing 15 links by coupler and lifting altitude coder 4; described lifting altitude coder 4 is installed on the support 14, and combines as a whole by bolt and described drum shaft bearing 15.
Be provided with bearing 11 in the described drum shaft bearing 15, drum shaft 13 usefulness bolts and door 12 are connected as a single entity.
Working process of the present invention:
Actuating motor 5 drives reels 1 by coupler 6, floating axle 7, drg 8, retarder 2 and rotates, and drives lifting altitude coder 4 by the coupler that links with drum shaft 13 and rotates, and provides electric signal.Behind reel 1 stand under load, act on the load cell 9, provide electric signal by the strain-gauge on the load cell 9 by drum shaft bearing 15.The electric signal that load cell 9 and lifting altitude coder 4 provide becomes hoisting capacity display data and switching value by display control switch, thereby realizes the overload protection to lifting mechanism.
Claims (2)
1. simply connected reel lifting mechanism with overload protection device; comprise: drive by electrical motor (5); through coupler (6); floating axle (7); the retarder (2) of drg (8) transmission; the reel (1) that connects with retarder (2) output shaft; be arranged on the rotary stopper switch (3) of reel (1) axle head; and load cell (9); it is characterized in that: described load cell (9); be located between drum shaft bearing (15) and the supporting base (10); described drum shaft bearing (15) links by coupler and lifting altitude coder (4); described lifting altitude coder (4) is installed on the support (14), and combines as a whole by bolt and described drum shaft bearing (15).
2. simply connected reel lifting mechanism with overload protection device, it is characterized in that: be provided with bearing (11) in the described drum shaft bearing (15), drum shaft (13) is connected as a single entity with bolt and door (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101480587A CN102285604A (en) | 2011-05-31 | 2011-05-31 | Single-joint winding drum hoisting mechanism with over-load protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101480587A CN102285604A (en) | 2011-05-31 | 2011-05-31 | Single-joint winding drum hoisting mechanism with over-load protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102285604A true CN102285604A (en) | 2011-12-21 |
Family
ID=45332397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101480587A Pending CN102285604A (en) | 2011-05-31 | 2011-05-31 | Single-joint winding drum hoisting mechanism with over-load protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102285604A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102730590A (en) * | 2012-06-21 | 2012-10-17 | 太原重工股份有限公司 | Lifting mechanism for crane of nuclear power station |
| CN104140047A (en) * | 2014-07-30 | 2014-11-12 | 辽宁华禹重工有限公司 | Permanent magnetic crane |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0057601A2 (en) * | 1981-01-29 | 1982-08-11 | Sykes Pumps Limited | Improvements in and relating to winches |
| CN2288958Y (en) * | 1996-11-13 | 1998-08-26 | 金华环球计算机工程有限公司 | Variable frequency speed-regulating portal crane |
| CN101336205A (en) * | 2006-01-26 | 2008-12-31 | 品驰布本泽尔有限责任公司 | Control and regulation device for safeguarding a conveyor device, conveyor device and crane unit |
| CN201220897Y (en) * | 2008-06-06 | 2009-04-15 | 隋舒杰 | Permanent magnetism synchronous gearless reel type raising apparatus for hoisting machine |
| CN101503169A (en) * | 2009-03-11 | 2009-08-12 | 大连华锐股份有限公司 | Hoisting mechanism for crane |
-
2011
- 2011-05-31 CN CN2011101480587A patent/CN102285604A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0057601A2 (en) * | 1981-01-29 | 1982-08-11 | Sykes Pumps Limited | Improvements in and relating to winches |
| CN2288958Y (en) * | 1996-11-13 | 1998-08-26 | 金华环球计算机工程有限公司 | Variable frequency speed-regulating portal crane |
| CN101336205A (en) * | 2006-01-26 | 2008-12-31 | 品驰布本泽尔有限责任公司 | Control and regulation device for safeguarding a conveyor device, conveyor device and crane unit |
| CN201220897Y (en) * | 2008-06-06 | 2009-04-15 | 隋舒杰 | Permanent magnetism synchronous gearless reel type raising apparatus for hoisting machine |
| CN101503169A (en) * | 2009-03-11 | 2009-08-12 | 大连华锐股份有限公司 | Hoisting mechanism for crane |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102730590A (en) * | 2012-06-21 | 2012-10-17 | 太原重工股份有限公司 | Lifting mechanism for crane of nuclear power station |
| CN104140047A (en) * | 2014-07-30 | 2014-11-12 | 辽宁华禹重工有限公司 | Permanent magnetic crane |
| CN104140047B (en) * | 2014-07-30 | 2016-03-16 | 辽宁华禹重工有限公司 | Permanent magnetic crane |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101665220B (en) | Variable-frequency speed-regulating control system of crane | |
| CN201647828U (en) | Single-double lifting point transformation type lifting device | |
| CN101804947B (en) | Single and double hanging point conversion type lifting device | |
| CN102826482B (en) | Lifting device | |
| CN102285604A (en) | Single-joint winding drum hoisting mechanism with over-load protection device | |
| CN202687850U (en) | Mounting structure of braking clutch of loop chain electric block | |
| CN102431861B (en) | Multifunctional safety building lifter | |
| CN202594639U (en) | Three-fulcrum lifting mechanism for bridge-type crane | |
| CN201896050U (en) | Gear-driving hinge lifting device | |
| CN202508775U (en) | Double dynamical speed reducer achieving hand operation and electromotion | |
| CN101898731B (en) | Hoisting mechanism of crane | |
| CN114195032B (en) | Variable rail plays to rise overload protection device | |
| CN202099001U (en) | Rope winding machine with function of converting high speed and low speed | |
| CN113846999B (en) | Dual-motor driven vertical pumping unit and working method thereof | |
| CN202226589U (en) | Hoist and lifting mechanism thereof | |
| CN204917789U (en) | But hoisting hoister of real -time supervision shaft coupling operating parameter | |
| CN203229328U (en) | Installation structure for overload limiter of ship unloader | |
| CN201415917Y (en) | Garbage sling van with single winding drum | |
| CN202245876U (en) | Coaxial quick-mounting skip hoist | |
| CN2685302Y (en) | Variable frequency compensation drive lift mechanism for double-motor of tower crane | |
| CN201614248U (en) | Tele-controlled motor winch | |
| CN201587824U (en) | Metallurgy bridge-type crane hoisting mechanism | |
| CN210150641U (en) | Sinking winch with overload protection device | |
| CN201473245U (en) | Lifting mechanism for crane | |
| CN202131045U (en) | Double-hoisting high-speed and high-lift electric hoist |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111221 |