CN106219428B - A kind of limiting device of electric block - Google Patents
A kind of limiting device of electric block Download PDFInfo
- Publication number
- CN106219428B CN106219428B CN201610661548.XA CN201610661548A CN106219428B CN 106219428 B CN106219428 B CN 106219428B CN 201610661548 A CN201610661548 A CN 201610661548A CN 106219428 B CN106219428 B CN 106219428B
- Authority
- CN
- China
- Prior art keywords
- safety switch
- cam
- shaped bar
- electric block
- runner
- 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.)
- Expired - Fee Related
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Classifications
-
- 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
- B66D1/54—Safety gear
- B66D1/56—Adaptations of limit switches
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The present invention relates to a kind of limiting device of electric block,It includes cable drum,The cable drum end set has fixed plate,It is provided with U-shaped bar on the upside of the fixed plate,Open Side Down for the U-shaped bar,It is provided with fulcrum bar of the spring between the U-shaped bar and fixed plate,The U-shaped bar bottom righthand side is connected with idler wheel,The U-shaped bar lower-left end is connected with connecting rod,The connecting rod lower end is connected with runner,The runner right side is connected with cam,The runner is rotated synchronously with cam,The cam is connected with micromotor,The micromotor is located on the inside of cable drum,It is provided with the first safety switch on the left of the fixed plate,Second safety switch and third safety switch,First safety switch is located at the positive front side of cam,Second safety switch and third safety switch is located at rear side in the middle part of cam；The present invention have it is simple in structure, it is at low cost, the advantages of safety and stability.
Description
Technical field
The invention belongs to technical field of crane equipment, and in particular to a kind of limiting device, more particularly to a kind of electric block
Limiting device.
Background technology
Electric block is a kind of using extremely wide lifting equipment, all pack up when the steel wire rope of electric gourd drum or
When putting down, motor needs timely to shut down, and otherwise leads to inconvenient even accident, when steel wire rope is all put down, needs
Other mechanism is set and is operated to leave the motor off, but when all putting down, it is some to be touched using the weight sling or suspension hook
Pause switch then easily causes the damage of component；Therefore it provides a kind of simple in structure, at low cost, the electric block limit of safety and stability
Position device is necessary.
Invention content
The purpose of the invention is to overcome the deficiencies in the prior art, and offer is a kind of simple in structure, and at low cost, safety is steady
Fixed limiting device of electric block.
The object of the present invention is achieved like this：A kind of limiting device of electric block, it includes cable drum, described
Cable drum end set has fixed plate, is provided with U-shaped bar on the upside of the fixed plate, Open Side Down for the U-shaped bar, institute
Fulcrum bar of the spring is provided between the U-shaped bar stated and fixed plate, the U-shaped bar bottom righthand side is connected with idler wheel, and the U-shaped bar is left
Lower end is connected with connecting rod, and the connecting rod lower end is connected with runner, and the runner right side is connected with cam, the runner
It is rotated synchronously with cam, the cam is connected with micromotor, and the micromotor is located on the inside of cable drum, described
Fixed plate on the left of be provided with the first safety switch, the second safety switch and third safety switch, first safety switch
Positioned at the positive front side of cam, second safety switch and third safety switch are located at rear side in the middle part of cam.
It is contacted with the steel wire rope of cable drum on the downside of the idler wheel.
The connection type of the connecting rod and U-shaped bar and runner is hinged.
The runner and cam coaxial heart line.
The third safety switch and the second safety switch is located at the upper and lower of the horizontal plane across cam axial line
Both sides.
First safety switch, the second safety switch and the third safety switch is series relationship.
Effective radian of the effective span of the projection portion of the cam and the second safety switch and third safety switch
Equal length.
Beneficial effects of the present invention：The present invention pushes the upper and lower past of U-shaped bar using the folding and unfolding of the steel wire rope of cable drum
Multiple movement, U-shaped bar, connecting rod and runner form slider-crank mechanism, while the rotation of driving cam is matched with safety switch, together
When can realize that electric block is extremely upper and extremely descend the limit of position, micromotor that the dead point of crank block, holding meanss is overcome to transport
Capable continuity；The present invention have it is simple in structure, it is at low cost, the advantages of safety and stability.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of limiting device of electric block of the present invention.
Fig. 2 is a kind of left view of limiting device of electric block of the present invention.
In figure：1, cable drum 2, fixed plate 3, U-shaped bar 4, idler wheel 5, fulcrum bar of the spring 6, connecting rod 7,
Runner 8, cam 9, micromotor 10, the first safety switch 11, the second safety switch 12, third safety switch.
Specific implementation mode
Following further describes the present invention with reference to the drawings.
Embodiment 1
As shown in Figs. 1-2, a kind of limiting device of electric block, it includes cable drum 1, the cable drum 1
End set has fixed plate 2,2 upside of fixed plate to be provided with U-shaped bar 3, and Open Side Down for the U-shaped bar 3, the U
Fulcrum bar of the spring 5 is provided between shape bar 3 and fixed plate 2,3 bottom righthand side of U-shaped bar is connected with idler wheel 4, the U-shaped bar 3
Lower-left end is connected with connecting rod 6, and 6 lower end of connecting rod is connected with runner 7, and 7 right side of runner is connected with cam 8, institute
The runner 7 stated is rotated synchronously with cam 8, and the cam 8 is connected with micromotor 9, and the micromotor 9 is located at steel wire rope
1 inside of reel, 2 left side of fixed plate are provided with the first safety switch 10, the second safety switch 11 and third safety switch
12, first safety switch 10 is located at the positive front side of cam 8, second safety switch 11 and third safety switch 12
In 8 middle part rear side of cam.
The present invention pushes pumping for U-shaped bar, U-shaped bar, connecting rod using the folding and unfolding of the steel wire rope of cable drum
Slider-crank mechanism is formed with runner, while the rotation of driving cam is matched with safety switch, while can realize electronic calabash
Reed is extremely upper and extremely descends the limit of position, and micromotor overcomes the dead point of crank block, the continuity of holding meanss operation；Work as steel wire
Rope is all when putting down, and U-shaped bar reaches lowest order, and the hinge joint of connecting rod and runner is similarly positioned in lowest order, the projection portion of cam
The first safety switch is touched, electric block motor shuts down, and micromotor intervention, band moving cam is rotated further, and is passed through
By a dead point of the slider-crank mechanism that U-shaped bar, connecting rod and runner form, since there are certain arcs for the projection portion of cam
The span of degree, therefore U-shaped bar can be made to return a small amount of distance, cam is rotated further during steel wire rope is rolled, and steel wire rope is received completely
When rising, the top dead-centre of U-shaped bar at this time and not up to crank block is set, and the second safety of projection portion touching of cam at this time
Switch, electric block motor shut down, and micromotor intervention, band moving cam is rotated further, the span of projection portion and second
Safety switch is identical with the effective span of third safety switch, and projection portion leaves the second safety switch and acts on third safety open
It closes, likewise, electric block motor shuts down, micromotor intervention, band moving cam is rotated further, the second safety switch and the
Passing through for three safety switches, second dead point of guarantee, not only ensure that passing through for dead point, but also make electric block motor in steel wire
Rope stops operating when all packing up, and after projection portion leaves third safety switch, idler wheel contacts steel wire rope at this time, can proceed with
The operation of electric block；The present invention have it is simple in structure, it is at low cost, the advantages of safety and stability.
Embodiment 2
As shown in Figs. 1-2, a kind of limiting device of electric block, it includes cable drum 1, the cable drum 1
End set has fixed plate 2,2 upside of fixed plate to be provided with U-shaped bar 3, and Open Side Down for the U-shaped bar 3, the U
Fulcrum bar of the spring 5 is provided between shape bar 3 and fixed plate 2,3 bottom righthand side of U-shaped bar is connected with idler wheel 4, the U-shaped bar 3
Lower-left end is connected with connecting rod 6, and 6 lower end of connecting rod is connected with runner 7, and 7 right side of runner is connected with cam 8, institute
The runner 7 stated is rotated synchronously with cam 8, and the cam 8 is connected with micromotor 9, and the micromotor 9 is located at steel wire rope
1 inside of reel, 2 left side of fixed plate are provided with the first safety switch 10, the second safety switch 11 and third safety switch
12, first safety switch 10 is located at the positive front side of cam 8, second safety switch 11 and third safety switch 12
In 8 middle part rear side of cam.
4 downside of idler wheel is contacted with the steel wire rope of cable drum 1；The connecting rod 6 and U-shaped bar 3 and runner 7
Connection type is hinged；The runner 7 and 8 coaxial inner conductor of cam；The third safety switch 12 and the second safety open
Pass 11 is located at the both sides up and down of the horizontal plane across 8 axial line of cam；First safety switch 10, the second safety open
Pass 11 and third safety switch 12 are series relationship；The effective span and the second safety switch of the projection portion of the cam 8
11 and third safety switch 12 effective radian equal length.
The present invention pushes pumping for U-shaped bar, U-shaped bar, connecting rod using the folding and unfolding of the steel wire rope of cable drum
Slider-crank mechanism is formed with runner, while the rotation of driving cam is matched with safety switch, while can realize electronic calabash
Reed is extremely upper and extremely descends the limit of position, and micromotor overcomes the dead point of crank block, the continuity of holding meanss operation；Work as steel wire
Rope is all when putting down, and U-shaped bar reaches lowest order, and the hinge joint of connecting rod and runner is similarly positioned in lowest order, the projection portion of cam
The first safety switch is touched, electric block motor shuts down, and micromotor intervention, band moving cam is rotated further, and is passed through
By a dead point of the slider-crank mechanism that U-shaped bar, connecting rod and runner form, since there are certain arcs for the projection portion of cam
The span of degree, therefore U-shaped bar can be made to return a small amount of distance, cam is rotated further during steel wire rope is rolled, and steel wire rope is received completely
When rising, the top dead-centre of U-shaped bar at this time and not up to crank block is set, and the second safety of projection portion touching of cam at this time
Switch, electric block motor shut down, and micromotor intervention, band moving cam is rotated further, the span of projection portion and second
Safety switch is identical with the effective span of third safety switch, and projection portion leaves the second safety switch and acts on third safety open
It closes, likewise, electric block motor shuts down, micromotor intervention, band moving cam is rotated further, the second safety switch and the
Passing through for three safety switches, second dead point of guarantee, not only ensure that passing through for dead point, but also make electric block motor in steel wire
Rope stops operating when all packing up, and after projection portion leaves third safety switch, idler wheel contacts steel wire rope at this time, can proceed with
The operation of electric block；The present invention have it is simple in structure, it is at low cost, the advantages of safety and stability.
Claims (7)
1. a kind of limiting device of electric block, it includes cable drum, it is characterised in that：The cable drum end is set
It is equipped with fixed plate, is provided with U-shaped bar on the upside of the fixed plate, Open Side Down for the U-shaped bar, the U-shaped bar and fixation
Fulcrum bar of the spring is provided between plate, the U-shaped bar bottom righthand side is connected with idler wheel, and the U-shaped bar lower-left end is connected with connecting rod,
The connecting rod lower end is connected with runner, and the runner right side is connected with cam, and the runner is rotated synchronously with cam,
The cam is connected with micromotor, and the micromotor is located on the inside of cable drum, is set on the left of the fixed plate
It is equipped with the first safety switch, the second safety switch and third safety switch, first safety switch is located at the positive front side of cam,
Second safety switch and third safety switch is located at rear side in the middle part of cam.
2. a kind of limiting device of electric block as described in claim 1, it is characterised in that：The idler wheel downside and steel wire rope
The steel wire rope of reel contacts.
3. a kind of limiting device of electric block as described in claim 1, it is characterised in that：The connecting rod and U-shaped bar, connecting rod
Connection type with runner is hinged.
4. a kind of limiting device of electric block as described in claim 1, it is characterised in that：The runner and the cam coaxial heart
Line.
5. a kind of limiting device of electric block as described in claim 1, it is characterised in that：The third safety switch and
Two safety switches are located at the both sides up and down of the horizontal plane across cam axial line.
6. a kind of limiting device of electric block as described in claim 1, it is characterised in that：First safety switch,
It is series relationship between two safety switches and third safety switch three.
7. a kind of limiting device of electric block as described in claim 1, it is characterised in that：The projection portion of the cam
The equal length of effective radian of effective span and the second safety switch and third safety switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610661548.XA CN106219428B (en) | 2016-08-14 | 2016-08-14 | A kind of limiting device of electric block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610661548.XA CN106219428B (en) | 2016-08-14 | 2016-08-14 | A kind of limiting device of electric block |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106219428A CN106219428A (en) | 2016-12-14 |
| CN106219428B true CN106219428B (en) | 2018-09-07 |
Family
ID=57548402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610661548.XA Expired - Fee Related CN106219428B (en) | 2016-08-14 | 2016-08-14 | A kind of limiting device of electric block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106219428B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107265196A (en) * | 2017-06-07 | 2017-10-20 | 广东运峰电力安装有限公司 | A kind of locking device of rope tail end |
| CN107503352B (en) * | 2017-08-30 | 2022-08-23 | 青岛路桥建设集团有限公司 | Deep water concrete filling device |
| CN109455357A (en) * | 2018-11-23 | 2019-03-12 | 临泉县隆源农业有限公司 | A kind of crops before sales auxiliary bagging equipment |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4312497A (en) * | 1979-10-12 | 1982-01-26 | Morris Whaley, Inc. | Hydraulic winches |
| CN2187606Y (en) * | 1994-01-13 | 1995-01-18 | 冯常励 | Safety position limiter for hoist |
| JPH10291780A (en) * | 1997-04-16 | 1998-11-04 | Mikuni Corp | Power transmission mechanism |
| CN2377238Y (en) * | 1999-07-02 | 2000-05-10 | 郭张来 | Safety stop |
| DE202004000037U1 (en) * | 2004-01-05 | 2004-07-01 | Riedl, Reinhold, Dipl.-Ing. | Load brake |
| CN101362580A (en) * | 2008-09-02 | 2009-02-11 | 八达机电有限公司 | Single-phase electric gourd with lower bound range stop |
| CN201962013U (en) * | 2011-01-21 | 2011-09-07 | 诺威起重设备（苏州）有限公司 | Limit switch device for electric block |
-
2016
- 2016-08-14 CN CN201610661548.XA patent/CN106219428B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN106219428A (en) | 2016-12-14 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180907 Termination date: 20190814 |
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| CF01 | Termination of patent right due to non-payment of annual fee |