CN202657895U - Improved steel wire rope electric hoist position-limiting device - Google Patents
Improved steel wire rope electric hoist position-limiting device Download PDFInfo
- Publication number
- CN202657895U CN202657895U CN 201220351636 CN201220351636U CN202657895U CN 202657895 U CN202657895 U CN 202657895U CN 201220351636 CN201220351636 CN 201220351636 CN 201220351636 U CN201220351636 U CN 201220351636U CN 202657895 U CN202657895 U CN 202657895U
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- dead point
- wire rope
- steel wire
- travel switch
- electric hoist
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- Expired - Lifetime
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- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The utility model discloses an improved steel wire rope electric hoist position-limiting device, belonging to the technical field of mechanical accessories of cranes. The improved steel wire rope electric hoist position-limiting device comprises a rope guide device positioned in the position of an opening of a reel housing, wherein the rope guide device can move left and right along the opening, and a lower dead point limitation travel switch with a lower dead point flexible pulling rod and an upper dead point limitation travel switch with an upper dead point flexible pulling rod are arranged in the vicinities of the two ends of the reel housing corresponding to a movement region of the rope guide device; when the rope guide device which moves left pokes the lower dead point flexible pulling rod, a steel wire rope electric hoist is still in the position of a lower dead point; and when the rope guide device which moves right pokes the upper dead point flexible pulling rod, the steel wire rope electric hoist is still in the position of an upper dead point. According to the technical scheme, the pulling rods of the limitation travel switches of the improved steel wire rope electric hoist position-limiting device disclosed by the utility model are of flexible structures and can withstand repeated collision of the rope guide device and realize sensitivity in brake actions, so that the improved steel wire rope electric hoist position-limiting device has the advantages of accuracy in position limitation and good durability, and can avoid the phenomena of rising and over-hoisting of the steel wire rope electric hoist caused by inaccuracy in position limitation and failure in control of the actions.
Description
[technical field]
The utility model relates to a kind of steel-wire rope type electric block, especially relates to a kind of improvement of Steel-wire Rope Type Electric Block Caging Device, belongs to elevator machinery attachment technique field.
[background technology]
Referring to shown in Figure 1, inhibiting device is the requisite component part of steel-wire rope type electric block, lower hook assembly is when the upper of the stroke that hoists or smallest limit position, rope guide 2 ' is corresponding to be moved on near the opening 10 ' right-hand member of reel shell 1 ' or near the opening left end, and conflict with corresponding top dead point stop piece 31 ' or bottom dead point stop piece 32 ', reach the effect of timely disconnection lifting motor power supply.
But still have in actual use many problems, it is mainly reflected in the following aspects:
1, because upper to putting stop piece 31 ', all being that rigidity is fixed in position-limited lever 3 ' upper (end of position-limited lever 3 ' links to each other with the contact assembly 40 ' of flame-out switch 4 ') down to a stop piece 32 ', when steel-wire rope type electric block is worked, upper and lower collision to putting stop piece and often be subject to rope guide 2 ', day be difficult to long afterwards avoid displacement even loosening phenomenon occur, cause spacing inaccurate;
2, because the position-limited lever 3 ' of slim-lined construction is to be loaded on the reel shell 1 ', steel-wire rope type electric block is in transportation, carrying, installation or use procedure, position-limited lever 3 ' exists because being subject to the diastrophic hidden danger of external force collision, position-limited lever 3 ' is in case after the distortion, on to putting stop piece 31 ', namely changing down to the position of a stop piece 32 ', its result can cause spacing inaccurate equally;
3, be serially connected in flame-out switch 4 ' in the lifting motor current supply circuit, its current value is identical with the current value of lifting motor, when flame-out switch 4 ' works, disconnection be the lifting motor power supply, therefore flame-out switch 4 ' current value is larger, easily damages and cause flame-out switch 4 ' action malfunctioning;
4, degree of protection is low: be IP44.
After in case spacing inaccurate situation occurs, steel-wire rope type electric block still is in the work uphill process, rope guide 2 ' does not in time touch to putting stop piece 31 ', although or rope guide 2 ' touches to putting stop piece 31 ', but flame-out switch 4 ' action is malfunctioning, lower hook assembly (the impact cucurbit body) phenomenon that then can occur rushing to summit will cause the serious consequence that cucurbit damages, hoisting heavy drops.
[utility model content]
The purpose of this utility model provides the high improved Steel-wire Rope Type Electric Block Caging Device of a kind of spacing accuracy.
It is as follows that the utility model solves the problems of the technologies described above the technical scheme that adopts:
A kind of improved Steel-wire Rope Type Electric Block Caging Device, it is implemented for the steel-wire rope type electric block lifting is spacing, the rope guide that comprises the opening part that is positioned at the reel shell, rope guide can be along the opening sway, near the corresponding reel shell two ends of the moving area of described rope guide, be provided with the bottom dead point limitation travel switch, the top dead point limitation travel switch, the bottom dead point limitation travel switch, the top dead point limitation travel switch has respectively the flexible dead man of bottom dead point, the flexible dead man of top dead point, when the rope guide that left-hand moves is stirred the flexible dead man of bottom dead point, steel-wire rope type electric block is still in bottom dead center position, when the rope guide that dextrad moves was stirred the flexible dead man of top dead point, steel-wire rope type electric block was still in top dead center position.
Above-mentioned bottom dead point limitation travel switch, top dead point limitation travel switch are the disconnected control type travel switch of little working current.
Limitation travel switch is little electric current, disconnected control type, and the malfunctioning switch chance is few, and long service life has effectively guaranteed the stability of spacing action control.
The advantage that the utility model compared with prior art has is:
1, because the dead man of each limitation travel switch is flexible structure, thus be difficult for loosening, damage, can stand rope guide and repeatedly collide, spacing accurately, durability is good;
2, upper and lower stop limitation travel switch control action is sensitive, and is spacing accurate;
3, through the test of professional testing agency: it has IP54～IP66 degree of protection.
The above-mentioned advantage of the utility model has been stopped the malfunctioning steel-wire rope type electric block that causes of spacing inaccurate, the control action phenomenon of rushing to summit that rises.
[description of drawings]
Be described in further detail with regard to the utility model below in conjunction with accompanying drawing.
Fig. 1 is the conventional limit device structure schematic diagram that is applied on the steel-wire rope type electric block;
Fig. 2 is that the utility model is applied to the limit device structure schematic diagram on the steel-wire rope type electric block.
[specific embodiment]
Seeing also shown in Figure 2ly, is preferred embodiment of the present utility model.
A kind of improved Steel-wire Rope Type Electric Block Caging Device, it is implemented for the steel-wire rope type electric block lifting is spacing, the rope guide 2 that comprises opening 10 places that are positioned at reel shell 1, rope guide 2 can be along opening 10 sway, near corresponding reel shell 1 two ends of the moving area of rope guide 2, be provided with bottom dead point limitation travel switch 32, top dead point limitation travel switch 31, bottom dead point limitation travel switch 32, top dead point limitation travel switch 31 is respectively by left-handed opening adapter plate 42, right switch fixing casing 41 is installed on the reel shell 1, bottom dead point limitation travel switch 32, top dead point limitation travel switch 31 is connected in series to respectively in the control loop of steel-wire rope type electric block, bottom dead point limitation travel switch 32, top dead point limitation travel switch 31 has respectively the flexible dead man 320 of bottom dead point, the flexible dead man 310 of top dead point.
When steel rope 5 unreels, rope guide 2 is moved to the left, until it toggles it to the flexible dead man 320 of bottom dead point, this moment, rope guide 2 was near reel shell 1 left end, bottom dead point limitation travel switch 32 works, disconnect control loop, lifting motor stops operating so that steel-wire rope type electric block is still in bottom dead center position; When steel rope 5 rolling, rope guide 2 moves right near the reel shell right-hand member, this moment, rope guide 2 toggled it to the flexible dead man 310 of top dead point, top dead point limitation travel switch 31 works, disconnect control loop, lifting motor stops operating so that the static up and down dead-centre position of steel-wire rope type electric block has played position-limiting action equally.
Bottom dead point limitation travel switch 32, top dead point limitation travel switch 31 are the disconnected control type travel switch of little working current.Therefore limitation travel switch long service life.
Limitation travel switch of the present utility model can be applicable to electric block with control electric block control loop, realizes limit function.
Claims (2)
1. improved Steel-wire Rope Type Electric Block Caging Device, it is implemented for the steel-wire rope type electric block lifting is spacing, the rope guide that comprises the opening part that is positioned at the reel shell, rope guide can be along the opening sway, it is characterized in that: near the corresponding reel shell two ends of the moving area of described rope guide, be provided with the bottom dead point limitation travel switch, the top dead point limitation travel switch, the bottom dead point limitation travel switch, the top dead point limitation travel switch has respectively the flexible dead man of bottom dead point, the flexible dead man of top dead point, when the rope guide that left-hand moves is stirred the flexible dead man of bottom dead point, steel-wire rope type electric block is still in bottom dead center position, when the rope guide that dextrad moves was stirred the flexible dead man of top dead point, steel-wire rope type electric block was still in top dead center position.
2. Steel-wire Rope Type Electric Block Caging Device according to claim 1, it is characterized in that: described bottom dead point limitation travel switch, top dead point limitation travel switch are the disconnected control type travel switch of little working current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220351636 CN202657895U (en) | 2012-07-17 | 2012-07-17 | Improved steel wire rope electric hoist position-limiting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220351636 CN202657895U (en) | 2012-07-17 | 2012-07-17 | Improved steel wire rope electric hoist position-limiting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202657895U true CN202657895U (en) | 2013-01-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220351636 Expired - Lifetime CN202657895U (en) | 2012-07-17 | 2012-07-17 | Improved steel wire rope electric hoist position-limiting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202657895U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103407925A (en) * | 2013-07-17 | 2013-11-27 | 诺威起重设备（苏州）有限公司 | Steel-wire rope type electric block stroke type lifting limiting device |
| CN105464883A (en) * | 2014-09-14 | 2016-04-06 | 张玉宝 | Energy extracting and conversion device for singular floating body rope wheel |
| CN107686066A (en) * | 2017-08-24 | 2018-02-13 | 芜湖市长江起重设备制造有限公司 | A kind of steel wire rope reeling device of bridge crane |
| CN112811342A (en) * | 2021-02-05 | 2021-05-18 | 合肥工业大学 | Electric block stroke stop device |
-
2012
- 2012-07-17 CN CN 201220351636 patent/CN202657895U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103407925A (en) * | 2013-07-17 | 2013-11-27 | 诺威起重设备（苏州）有限公司 | Steel-wire rope type electric block stroke type lifting limiting device |
| CN105464883A (en) * | 2014-09-14 | 2016-04-06 | 张玉宝 | Energy extracting and conversion device for singular floating body rope wheel |
| CN107686066A (en) * | 2017-08-24 | 2018-02-13 | 芜湖市长江起重设备制造有限公司 | A kind of steel wire rope reeling device of bridge crane |
| CN112811342A (en) * | 2021-02-05 | 2021-05-18 | 合肥工业大学 | Electric block stroke stop device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: ZHEJIANG SHUANGNIAO MACHINERY Co.,Ltd. Assignor: Zhang Wenzhong Contract record no.: 2013330000144 Denomination of utility model: Improved steel wire rope electric hoist position-limiting device Granted publication date: 20130109 License type: Exclusive License Record date: 20130520 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130109 |
|
| CX01 | Expiry of patent term |