CN102303825A - Over-speed control switch for low-speed rotation device - Google Patents
Over-speed control switch for low-speed rotation device Download PDFInfo
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- CN102303825A CN102303825A CN201110235808A CN201110235808A CN102303825A CN 102303825 A CN102303825 A CN 102303825A CN 201110235808 A CN201110235808 A CN 201110235808A CN 201110235808 A CN201110235808 A CN 201110235808A CN 102303825 A CN102303825 A CN 102303825A
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Abstract
The invention relates to an over-speed control switch for a low-speed rotation device. The over-speed control switch is characterized by comprising a shell, a speed reducing mechanism arranged in the shell, a centrifugal device and a switch signal generator; the speed reducing mechanism comprises a variable speed mechanism shell, a main shaft, a driving gear, a driven gear and an output shaft; the driving gear is connected with one end of the main shaft through a key; the driven gear is connected with one end of the output shaft through a key; the driving gear is engaged with the driven gear; the main shaft and the output shaft are respectively supported on the variable speed mechanism shell through bearings; the other end of the output shaft is connected with the centrifugal device; the centrifugal device is communicated with the switch signal generator; and an electric signal output end connected with the switch signal generator is arranged on the shell. The invention has the advantages that: the defect that an installation space size and structure weight are increased due to the combination of the high-rotation over-speed control switch and a speed changing box mode is overcome. The rotational speed of the low-speed rotation device is transformed into a switch electric signal for output, so the purpose of controlling overspeed of the low-speed rotation device is achieved.
Description
Technical field
The invention belongs to master cock, relate in particular to a kind of hypervelocity master cock of low-speed revolving device.
Background technology
Speed control unit is used for the maximum speed control of various slewing arrangements, prevents that overload situations from occurring.Usefulness is the above speed control unit of 400r/min in the market, and the producer that uses slow speed of revolution to control need use a change speed gear box to add high-speed control device and realize low speed control.This structure is huge, is difficult for installing, and cost is high, is unfavorable for the application of motor.
Summary of the invention
The present invention is in order to overcome deficiency of the prior art; A kind of hypervelocity master cock of low-speed revolving device is provided; It is through being connected with the main shaft of slewing arrangement; With of the amplification of hypervelocity information through change-speed box; The action of drive centrifugal device; Final trigger switch signal output has reached the purpose that control slow speed of revolution slewing arrangement exceeds the speed limit.
The present invention is for realizing above-mentioned purpose; Realize through following technical scheme; A kind of hypervelocity master cock of low-speed revolving device; It is characterized in that: comprise shell and place the speed reduction gearing in the shell; Centrifugal device and switch signal generator; Said speed reduction gearing comprises the speed-changing mechanism housing; Main shaft; Driving gear; Driven gear and output shaft; Said driving gear and main shaft one end keyed jointing; Driven gear and output shaft one end keyed jointing; Said driving gear and driven gear engagement; Said main shaft and output shaft are bearing in respectively on the speed-changing mechanism housing through bearing; The said output shaft other end is connected with centrifugal device; Said centrifugal device is communicated with switch signal generator, and said shell is provided with and switch signal generator bonded assembly electrical signal.
Beneficial effect: this device is widely used in all kinds of elevator machineries, as: the bridge crane machine, tower crane, overhead traveling crane etc., it is lower to fill up present part elevator machinery rotating speed, the blank that the existing overspeed switch in market can't use.Overcome and used high over speed of rotation switch to combine the change speed gear box mode that installation dimension is increased, increased the shortcoming of structural weight.Convert the rotating speed of low-speed revolving device (0-400r/min) to switched electrical signal output, thereby reached the purpose of control slow speed of revolution slewing arrangement hypervelocity.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
Below in conjunction with preferred embodiment; To details are as follows according to the specific embodiment provided by the invention: see accompanying drawing for details; A kind of hypervelocity master cock of low-speed revolving device; Comprise shell 2 and place the speed reduction gearing in the shell; Centrifugal device 6 and switch signal generator; Said speed reduction gearing comprises speed-changing mechanism housing 7; Main shaft 1; Driving gear 3; Driven gear 4 and output shaft 5; Said driving gear and main shaft one end keyed jointing; Driven gear and output shaft one end keyed jointing; Said driving gear and driven gear engagement; Said main shaft and output shaft are bearing in respectively on the speed-changing mechanism housing through the bearing (not shown); The said output shaft other end is connected with centrifugal device; Said centrifugal device is communicated with switch signal generator 8, and said shell is provided with and switch signal generator bonded assembly electrical signal 9.
Principle of work: the client slewing arrangement is connected through main shaft 1 with the low speed overspeed switch; Main shaft 1 drives driving gear 3; Driving gear 3 drives driven gear 4; Driven gear 4 drives output shaft 5; Output shaft 5 drives centrifugal device 6; Switch signal generator 8 is fixed on the shell 2 according to certain angle (angle is according to the speed adjustment of setting), and is connected with the client slewing arrangement through electric signal output 9.When the slewing arrangement rotating speed meets or exceeds when setting rotating speed, centrifugal device 6 produces centrifugal angle and makes centrifugal device 6 touching switch signal generators 8 under action of centrifugal force, export switched electrical signal through electrical signal 9, prevents the purpose of transshipping thereby reach.When the slewing arrangement rotating speed reduced, centrifugal device 6 returned initial point, guaranteed that speed switch reuses.Speed switch can adopt multiple connection mode to be connected with client, like the connection mode of axle sleeve type, single face adapter shaft flange or two-sided adapter shaft.
Embodiment
Certain lifting equipment company produces the bridge crane machine that is used for certain harbour; Its rotating speed 14.8 commentaries on classics/per minutes can't directly use high over speed of rotation switch, simultaneously because the limitation of cylinder sizes; Also can't adopt high over speed of rotation switch to combine the mode of change speed gear box, exist hypervelocity dangerous.Main shaft one end connecting bridge loop wheel machine master motor with this novel hypervelocity master cock efficiently solves this difficult point, and the bridge crane machine is among the protection of overspeed switch all the time.
The above only is preferred embodiment of the present invention, is not structure of the present invention is done any pro forma restriction.Every foundation technical spirit of the present invention all still belongs in the scope of technical scheme of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (1)
1. the hypervelocity master cock of a low-speed revolving device; It is characterized in that: comprise shell and place the speed reduction gearing in the shell; Centrifugal device and switch signal generator; Said speed reduction gearing comprises the speed-changing mechanism housing; Main shaft; Driving gear; Driven gear and output shaft; Said driving gear and main shaft one end keyed jointing; Driven gear and output shaft one end keyed jointing; Said driving gear and driven gear engagement; Said main shaft and output shaft are bearing in respectively on the speed-changing mechanism housing through bearing; The said output shaft other end is connected with centrifugal device; Said centrifugal device is communicated with switch signal generator, and said shell is provided with and switch signal generator bonded assembly electrical signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110235808A CN102303825A (en) | 2011-08-17 | 2011-08-17 | Over-speed control switch for low-speed rotation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110235808A CN102303825A (en) | 2011-08-17 | 2011-08-17 | Over-speed control switch for low-speed rotation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102303825A true CN102303825A (en) | 2012-01-04 |
Family
ID=45377770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110235808A Pending CN102303825A (en) | 2011-08-17 | 2011-08-17 | Over-speed control switch for low-speed rotation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102303825A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115839675A (en) * | 2023-02-20 | 2023-03-24 | 宜科(天津)电子有限公司 | Object contour line recognition system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2179367Y (en) * | 1993-08-31 | 1994-10-12 | 杨正明 | Mine winch speed limiter |
| CN201351069Y (en) * | 2009-02-16 | 2009-11-25 | 华宏烨 | Anti-dropping Safety speed limiter |
| CN201619960U (en) * | 2010-03-23 | 2010-11-03 | 上海能港电气工程科技有限公司 | Crane out-of-control switch device |
| CN202272672U (en) * | 2011-08-17 | 2012-06-13 | 宜科(天津)电子有限公司 | Overspeed control switch for low-speed rotating device |
-
2011
- 2011-08-17 CN CN201110235808A patent/CN102303825A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2179367Y (en) * | 1993-08-31 | 1994-10-12 | 杨正明 | Mine winch speed limiter |
| CN201351069Y (en) * | 2009-02-16 | 2009-11-25 | 华宏烨 | Anti-dropping Safety speed limiter |
| CN201619960U (en) * | 2010-03-23 | 2010-11-03 | 上海能港电气工程科技有限公司 | Crane out-of-control switch device |
| CN202272672U (en) * | 2011-08-17 | 2012-06-13 | 宜科(天津)电子有限公司 | Overspeed control switch for low-speed rotating device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115839675A (en) * | 2023-02-20 | 2023-03-24 | 宜科(天津)电子有限公司 | Object contour line recognition system |
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| 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: 20120104 |