CN205023783U - Overspeed switch monitoring device of hoist engine - Google Patents
Overspeed switch monitoring device of hoist engine Download PDFInfo
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- CN205023783U CN205023783U CN201520767305.5U CN201520767305U CN205023783U CN 205023783 U CN205023783 U CN 205023783U CN 201520767305 U CN201520767305 U CN 201520767305U CN 205023783 U CN205023783 U CN 205023783U
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Abstract
The utility model relates to a hoist engine, concretely relates to overspeed switch monitoring device of hoist engine, include the lifting drum who is connected with motor shaft, be provided with the measurement component on the reel curb plate, the measurement component top is provided with the sensing part, the sensing part is including the inductor that is used for launching the signal's signal detector with be used for the measurement of inductance part, the signal detector still is used for received signal to reach the reflected signal of measurement component back reflection, still be provided with the controlling means who is connected with signal detector and inductor on the sensing part, controlling means obtains reflected signal's frequency and time according to the signal detector, combines the frequency of the measurement component process that the inductor detected, obtains the rotational speed of hoist engine, when rotational speed during above the set upper limit value, sends alarm signal. This monitoring device can in time send the alarm when lifting drum takes place to exceed the speed limit the rotation, remind the abnormal conditions of solving the hoist engine, improves the security performance of hoist engine greatly.
Description
Technical field
The utility model relates to a kind of winch, particularly a kind of overspeed switch control monitor unit of winch.
Background technology
Winch refers to the small-sized weight-lifting equipment by reel lay winding wire ropes or chain lifting or traction weight, present application is based on electric winch, in work, motor by transmission of power to reductor, then by reductor, transmission of power is carried out promoting or draw operations to spool body, along with development and the application of science and technology, in existing construction trade, winch is widely used especially, for the transhipment of building material and material, particularly to the transhipment work of high position, all lean on the cooperation of winch to realize now, substantially increase work efficiency, for engineering construction brings great convenience.
Winch is in release or when tightening up steel rope, and machine shaft coordinates reel also to drive reel to rotate, steel rope thus rotate.But when the rotating shaft of motor, that fracture etc. occurs is unexpected, and rotating shaft is coordinated with reel and lost efficacy, when reel loses the rotary torque of rotating shaft, under the pulling force effect of reel by weight on steel rope, rotation is accelerated in generation extremely, produces huge potential safety hazard.
Therefore be necessary to research and develop a kind of control monitor unit that reel is occurred to for hypervelocity rotation, with the abnormal condition of Timeliness coverage winch, increase the safety performance of winch.
Utility model content
Goal of the invention of the present utility model is: the accidents such as fracture occur the rotating shaft for winch motor, rotating shaft is coordinated with reel lost efficacy, when reel loses the rotary torque of rotating shaft, under the pulling force effect of reel by weight on steel rope, there is abnormal acceleration to rotate, produce the problem of huge potential safety hazard, a kind of overspeed switch control monitor unit of winch is provided, this device can when there is hypervelocity rotation in lifting drum, give the alarm in time, to remind the abnormal condition solving winch, improve the safety performance of winch.
To achieve these goals, the technical solution adopted in the utility model is:
A kind of overspeed switch control monitor unit of winch, comprise the lifting drum be connected with machine shaft, described barrel lateral plates is provided with measurement component, sensing element is provided with above described measurement component, described sensing element comprises the signal detector for transmitting and the inductor for measurement of inductance parts, described signal detector also arrives the reflected signal of measurement component back reflection for Received signal strength, described sensing element is also provided with the control setup be connected with inductor with signal detector, described control setup obtains frequency and the time of reflected signal according to signal detector, in conjunction with the frequency of the measurement component process that inductor detects, obtain the rotating speed of winch, when rotating speed exceedes capping value, give the alarm signal.
This device is by arranging measurement component at barrel lateral plates, and correspondence arranges the sensing element detecting measurement component rotating speed, measurement component rotates with barrel lateral plates, detect the spin data of measurement component by signal detector that sensing element is arranged and inductor and pass to control setup, the rotating speed of measurement component is calculated through control setup, be the rotating speed of winch, by the higher limit of preset rotation speed in control setup, when the actual speed measured meets or exceeds higher limit certain limit, give the alarm signal alarm.This control monitor unit take off data accurate and effective, result of calculation is quick, when hypervelocity rotation occurs lifting drum, can give the alarm in time, remind the abnormal condition solving winch, greatly improve the safety performance of winch.
Wherein, after inductor senses measurement component, by transmitting signal to control setup, and then control setup can calculate the frequency of measurement component process, and signal detector detects the signal reflected after transmitting, control setup can obtain frequency and the time of reflected signal according to signal detector, comprehensively these parameters draw the rotating speed of winch.
As preferred version of the present utility model, described measurement component is the projection of the multiple one-tenth convex shape be arranged on barrel lateral plates.Projection and barrel lateral plates relative height inconsistent, be conducive to reflection and the detection of signal, also easy sensed device detects.
As preferred version of the present utility model, all described projections are arranged on circumferentially same.All projection places circle is concentric circles with winch rotating shaft.
As preferred version of the present utility model, described measurement component is the multiple shrinkage pools be arranged on barrel lateral plates.
As preferred version of the present utility model, all shrinkage pools are arranged on circumferentially same.All shrinkage pool places circle is concentric circles with the rotating shaft of winch.
Be arranged on the multiple projection on same rotating shaft concentric circles or shrinkage pool, when winch occurs to exceed the speed limit reaction, inductor can detect reflected signal more in time, detects the comparison of data through multiple projection or shrinkage pool, and the hypervelocity that final analysis obtains judges more accurately with in time.
As preferred version of the present utility model, described inductor is inductive pickoff.Inductive pickoff has the outstanding advantages that structure is simple, dynamic response soon, easily realizes noncontact measurement, and the monitoring overspeed being applied in winch has good effect, for the action of rapid reaction winch hypervelocity provides safeguard.
As preferred version of the present utility model, described inductor is connected with the sensor holder be fixed on winch bearing.
In sum, owing to have employed technique scheme, the beneficial effects of the utility model are:
1, this device is by arranging measurement component at barrel lateral plates, and correspondence arranges the sensing element detecting measurement component rotating speed, measurement component rotates with barrel lateral plates, detect the spin data of measurement component by signal detector that sensing element is arranged and inductor and pass to control setup, the rotating speed of measurement component is calculated through control setup, be the rotating speed of winch, by the higher limit of preset rotation speed in control setup, when the actual speed measured meets or exceeds higher limit certain limit, give the alarm signal alarm.This control monitor unit take off data accurate and effective, result of calculation is quick, when hypervelocity rotation occurs lifting drum, can give the alarm in time, remind the abnormal condition solving winch, greatly improve the safety performance of winch;
2, the multiple projection on same rotating shaft concentric circles or shrinkage pool is arranged on, when there is hypervelocity reaction in winch, inductor can detect reflected signal more in time, detects the comparison of data through multiple projection or shrinkage pool, and the hypervelocity that final analysis obtains judges more accurately with in time.
Accompanying drawing explanation
Fig. 1 is the structural representation of the overspeed switch control monitor unit of the utility model winch.
Fig. 2 is the A portion partial enlarged drawing in Fig. 1.
Mark in figure: 1-motor, 2-rotating shaft, 3-lifting drum, 31-barrel lateral plates, 4-bearing, 5-projection, 6-sensor holder, 7-inductive pickoff.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
embodiment 1
The overspeed switch control monitor unit of this winch is used for the winch monitoring of building tower crane by the present embodiment, as depicted in figs. 1 and 2, lifting drum 3 is connected with motor 1 by rotating shaft 2, and fix on the carrier 4, this control monitor unit comprises the lifting drum 3 be connected with the rotating shaft 2 of motor 1, described barrel lateral plates 31 is provided with measurement component, sensing element is provided with above measurement component, described sensing element comprises the signal detector for transmitting and the inductor for measurement of inductance parts, described signal detector also arrives the reflected signal of measurement component back reflection for Received signal strength, described sensing element is also provided with the control setup be connected with inductor with signal detector, described control setup obtains frequency and the time of reflected signal according to signal detector, in conjunction with the frequency of the measurement component process that inductor detects, obtain the rotating speed of winch, when rotating speed exceedes capping value, give the alarm signal.
In the present embodiment, described measurement component is the multiple projections 5 be arranged on barrel lateral plates 31.Projection and barrel lateral plates relative height inconsistent, be conducive to reflection and the detection of signal, also easy sensed device detects.
In the present embodiment, all projections 5 are arranged on circumferentially same, and the circle at projection 5 place and the rotating shaft of winch are concentric circles.
Be arranged on the multiple projections on same rotating shaft concentric circles, when winch occurs to exceed the speed limit reaction, inductor can detect reflected signal more in time, detects the comparison of data through multiple projection, and the hypervelocity that final analysis obtains judges more accurately with in time.
In the present embodiment, described inductor is inductive pickoff 7.Inductive pickoff has the outstanding advantages that structure is simple, dynamic response soon, easily realizes noncontact measurement, and the monitoring overspeed being applied in winch has good effect, for the action of rapid reaction winch hypervelocity provides safeguard.
In the present embodiment, described inductor is connected with the sensor holder 6 be fixed on lifting drum strut member.
In sum, this device is by arranging measurement component at barrel lateral plates, and correspondence arranges the sensing element detecting measurement component rotating speed, measurement component rotates with barrel lateral plates, detect the spin data of measurement component by signal detector that sensing element is arranged and inductor and pass to control setup, the rotating speed of measurement component is calculated through control setup, be the rotating speed of winch, by the higher limit of preset rotation speed in control setup, when the actual speed measured meets or exceeds higher limit certain limit, give the alarm signal alarm.This control monitor unit take off data accurate and effective, result of calculation is quick, when hypervelocity rotation occurs lifting drum, can give the alarm in time, remind the abnormal condition solving winch, greatly improve the safety performance of winch.
embodiment 2
In the present embodiment, the measurement component in embodiment 1 is become the multiple shrinkage pools be arranged on barrel lateral plates.
And all shrinkage pools are arranged on circumferentially same, shrinkage pool place circle is concentric circles with winch rotating shaft.
Be arranged on the multiple shrinkage pools on same rotating shaft concentric circles, when winch occurs to exceed the speed limit reaction, inductor can detect reflected signal more in time, detects the comparison of data through multiple shrinkage pool, and the hypervelocity that final analysis obtains judges more accurately with in time.Other settings of the present embodiment are identical with the technical scheme of embodiment 1.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (7)
1. the overspeed switch control monitor unit of a winch, comprise the lifting drum be connected with machine shaft, it is characterized in that, described barrel lateral plates is provided with measurement component, sensing element is provided with above described measurement component, described sensing element comprises the signal detector for transmitting and the inductor for measurement of inductance parts, described signal detector also arrives the reflected signal of measurement component back reflection for Received signal strength, described sensing element is also provided with the control setup be connected with inductor with signal detector, described control setup obtains frequency and the time of reflected signal according to signal detector, in conjunction with the frequency of the measurement component process that inductor detects, obtain the rotating speed of winch, when rotating speed exceedes capping value, give the alarm signal.
2. overspeed switch control monitor unit according to claim 1, is characterized in that, described measurement component is the projection of the multiple one-tenth convex shape be arranged on barrel lateral plates.
3. overspeed switch control monitor unit according to claim 2, is characterized in that, all described projections are arranged on circumferentially same.
4. overspeed switch control monitor unit according to claim 1, is characterized in that, described measurement component is the multiple shrinkage pools be arranged on barrel lateral plates.
5. overspeed switch control monitor unit according to claim 4, is characterized in that, all described shrinkage pools are arranged on circumferentially same.
6. according to the overspeed switch control monitor unit one of claim 1-5 Suo Shu, it is characterized in that, described inductor is inductive pickoff.
7. overspeed switch control monitor unit according to claim 6, is characterized in that, described inductor is connected with the sensor holder be fixed on lifting drum strut member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520767305.5U CN205023783U (en) | 2015-09-30 | 2015-09-30 | Overspeed switch monitoring device of hoist engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520767305.5U CN205023783U (en) | 2015-09-30 | 2015-09-30 | Overspeed switch monitoring device of hoist engine |
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| Publication Number | Publication Date |
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| CN205023783U true CN205023783U (en) | 2016-02-10 |
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| CN201520767305.5U Active CN205023783U (en) | 2015-09-30 | 2015-09-30 | Overspeed switch monitoring device of hoist engine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106477472A (en) * | 2016-12-16 | 2017-03-08 | 三汽车制造有限公司 | Winding plant and elevator |
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2015
- 2015-09-30 CN CN201520767305.5U patent/CN205023783U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106477472A (en) * | 2016-12-16 | 2017-03-08 | 三汽车制造有限公司 | Winding plant and elevator |
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