CN203474346U - Stroke lift limiting device of steel-wire rope type electric block - Google Patents
Stroke lift limiting device of steel-wire rope type electric block Download PDFInfo
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- CN203474346U CN203474346U CN201320424089.5U CN201320424089U CN203474346U CN 203474346 U CN203474346 U CN 203474346U CN 201320424089 U CN201320424089 U CN 201320424089U CN 203474346 U CN203474346 U CN 203474346U
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- switch
- micro
- upper limit
- limit micro
- steel
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Abstract
The utility model discloses a stroke lift limiting device of a steel-wire rope type electric block, which is characterized by comprising an upper limiting microswitch and a lower limiting microswitch which are arranged at the two ends in a roller housing, where each of the upper limiting microswitch and the lower limiting microswitch comprises a microswitch body, a rolling wheel and a trigger button positioned on the microswitch body; each rolling wheel is connected with each microswitch body by a compression bar; and when a rope guide device moves to the position where the upper limiting microswitch or the lower limiting microswitch is located, each rolling wheel is pressed to drive each compression bar to trigger each trigger button. The stroke lift limiting device has the advantages that the service life of the lift limiting device is prolonged; steel consumption is reduced; the weight of a crane is reduced; and an upper limit position and a lower limit position of the steel-wire rope type electric block can be precisely controlled.
Description
Technical field
the utility model relates to a kind of inhibiting device that hoists, especially a kind of steel-wire rope type electric block stroke type inhibiting device that hoists.
Background technology
conventional crane hoisting spacing employing turbine and worm formula or weight hammer type, turbine and worm formula is all in running state in the whole decline process that hoists, and large to the wearing and tearing of turbine and worm pair, the life-span is short; And weight hammer type utilizes lever principle, be pure mechanical part, outside the required steel of hoisting crane itself, separately need to increase steel, complex structure.
Summary of the invention
the utility model object is: provide a kind of simple in structure, quality is light, and consumptive material is few and the life-span is long, and can control accurately the upper limit position of steel-wire rope type electric block and the steel-wire rope type electric block stroke type of the lower position inhibiting device that hoists.
the technical solution of the utility model is: a kind of steel-wire rope type electric block stroke type inhibiting device that hoists, it is characterized in that, comprise upper limit micro-switch and the lower limit micro-switch of being located at respectively reel enclosure two ends, described upper limit micro-switch and described lower limit micro-switch include micro-switch body, roller and be positioned at the trigger button on described micro-switch body, described roller is connected by depression bar with described micro-switch body, when rope guide moves to described upper limit micro-switch or described lower limit micro-switch position, described roller presses down and drives depression bar to trigger described trigger button.
preferably, described upper limit micro-switch and described lower limit micro-switch also comprise open contact and normally closed contact, when described roller presses down while driving depression bar to trigger described trigger button, and the closed signal that hoists accordingly that also sends of described open contact.
preferably, the number of described upper limit micro-switch is 2, and when rope guide moves to first upper limit micro-switch position, reel runs slowly; When rope guide continues to move to second upper limit micro-switch position, reel is out of service.
preferably, when rope guide moves to described lower limit micro-switch position, reel is out of service.
more preferably, also comprise the connecting rod of being located at reel enclosure, described connecting rod two ends are respectively equipped with for placing the long gain of described upper limit micro-switch and described lower limit micro-switch.
the utility model concrete operation step is as follows, when weight hoists motion, reel reversion, rope guide, to left movement, when rope guide moves to upper limit position, first triggers first upper limit micro-switch, reel runs slowly, rope guide continues second upper limit micro-switch of motion triggers, and reel is out of service, and weight stops the operation of rising; When weight declines operation, reel forward, rope guide moves right, and when rope guide moves to lower position, triggers lower limit micro-switch, and reel is out of service, and weight stops the operation that declines.
the utility model has the advantages that: not only extend the utility model and hoist the inhibiting device life-span, reduce steel consumption, alleviate hoisting crane weight, and realize accurate upper limit position and the lower position of controlling steel-wire rope type electric block.
Accompanying drawing explanation
below in conjunction with drawings and Examples, the utility model is further described:
fig. 1 is the utility model position limited inching switch structural representation;
fig. 2 is the utility model structural representation;
wherein: 1 upper limit micro-switch, 2 lower limit micro-switchs, 3 micro-switch bodies, 4 rollers, 5 trigger buttons, 6 depression bars, 7 open contacts, 8 normally closed contacts, 9 connecting rods, 10 long gains, 11 rope guides.
The specific embodiment
embodiment: shown in 2, a kind of steel-wire rope type electric block stroke type inhibiting device that hoists, comprise 2 upper limit micro-switchs 1 and 1 lower limit micro-switch 2, also comprise the connecting rod 9 of being located at reel enclosure, connecting rod 9 two ends are respectively equipped with for placing the long gain 10 of upper limit micro-switch 1 and lower limit micro-switch 2, upper limit micro-switch 1 and lower limit micro-switch 2 include micro-switch body 3, roller 4, be positioned at the trigger button 5 on micro-switch body 3, open contact 7 and normally closed contact 8, roller 4 is connected by depression bar 6 with micro-switch body 3, when rope guide 11 moves to upper limit micro-switch 1 or lower limit micro-switch 2 position, roller 4 presses down and drives depression bar 6 to trigger trigger button 5, open contact 7 closures are also sent the signal that hoists accordingly, when rope guide 11 moves to first upper limit micro-switch 1 position, reel runs slowly, when rope guide 11 continues to move to second upper limit micro-switch 1 position, reel is out of service, when rope guide 11 moves to lower limit micro-switch 2 position, reel is out of service.
the utility model concrete operation step is as follows, when weight hoists motion, reel reversion, rope guide 11, to left movement, when rope guide 11 moves to upper limit position, first triggers first upper limit micro-switch 1, reel runs slowly, rope guide 11 continues second upper limit micro-switch 1 of motion triggers, and reel is out of service, and weight stops the operation of rising; When weight declines operation, reel forward, rope guide 11 moves right, and when rope guide 11 moves to lower position, triggers lower limit micro-switch 2, and reel is out of service, and weight stops the operation that declines.
above-described embodiment is only explanation technical conceive of the present utility model and feature, and its object is to allow person skilled in the art can understand content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All modifications of doing according to the Spirit Essence of the utility model main technical schemes, within all should being encompassed in protection domain of the present utility model.
Claims (5)
1. the steel-wire rope type electric block stroke type inhibiting device that hoists, it is characterized in that, comprise upper limit micro-switch and the lower limit micro-switch of being located at respectively reel enclosure two ends, described upper limit micro-switch and described lower limit micro-switch include micro-switch body, roller and be positioned at the trigger button on described micro-switch body, described roller is connected by depression bar with described micro-switch body, when rope guide moves to described upper limit micro-switch or described lower limit micro-switch position, described roller presses down and drives depression bar to trigger described trigger button.
2. the steel-wire rope type electric block stroke type according to claim 1 inhibiting device that hoists, it is characterized in that, described upper limit micro-switch and described lower limit micro-switch also comprise open contact and normally closed contact, when described roller presses down while driving depression bar to trigger described trigger button, the closed signal that hoists accordingly that also sends of described open contact.
3. the steel-wire rope type electric block stroke type according to claim 1 inhibiting device that hoists, is characterized in that, the number of described upper limit micro-switch is 2, and when rope guide moves to first upper limit micro-switch position, reel runs slowly; When rope guide continues to move to second upper limit micro-switch position, reel is out of service.
4. the steel-wire rope type electric block stroke type according to claim 1 inhibiting device that hoists, is characterized in that, when rope guide moves to described lower limit micro-switch position, reel is out of service.
5. the steel-wire rope type electric block stroke type according to claim 1 inhibiting device that hoists, it is characterized in that, also comprise the connecting rod of being located at reel enclosure, described connecting rod two ends are respectively equipped with for placing the long gain of described upper limit micro-switch and described lower limit micro-switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320424089.5U CN203474346U (en) | 2013-07-17 | 2013-07-17 | Stroke lift limiting device of steel-wire rope type electric block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320424089.5U CN203474346U (en) | 2013-07-17 | 2013-07-17 | Stroke lift limiting device of steel-wire rope type electric block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203474346U true CN203474346U (en) | 2014-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320424089.5U Expired - Lifetime CN203474346U (en) | 2013-07-17 | 2013-07-17 | Stroke lift limiting device of steel-wire rope type electric block |
Country Status (1)
| Country | Link |
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| CN (1) | CN203474346U (en) |
Cited By (1)
| 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 |
-
2013
- 2013-07-17 CN CN201320424089.5U patent/CN203474346U/en not_active Expired - Lifetime
Cited By (1)
| 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 |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140312 |
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| CX01 | Expiry of patent term |