CN101348218A - Single-phase electric gourd with lower caging device - Google Patents
Single-phase electric gourd with lower caging device Download PDFInfo
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- CN101348218A CN101348218A CNA2008101310885A CN200810131088A CN101348218A CN 101348218 A CN101348218 A CN 101348218A CN A2008101310885 A CNA2008101310885 A CN A2008101310885A CN 200810131088 A CN200810131088 A CN 200810131088A CN 101348218 A CN101348218 A CN 101348218A
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- reel
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- phase electric
- guide rod
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Abstract
The invention relates to a single-phase electric hoist in lifting equipment, in particular to a single-phase electric hoist with a lower limit device. The invention adopts a technical proposal that the single-phase electric hoist with the lower limit device comprises a shell, as well as a reel, a speed reducer, a motor driving the reel to rotate, a control component, a steel wire rope wound on the reel, an upper limit device and a lower limit device which are arranged inside the shell; the lower limit device is arranged on the single-phase electric hoist; the lower limit device comprises a microswitch component and a guide rod which is matched with the microswitch component to control the rotation of the motor; one end of the guide rod is arranged on the corresponding side of the reel, and the other end of the guide rod is in collision fit with the microswitch component; a suitable position of the reel is provided with a through hole; the steel wire rope passes through the through hole and then is wound on the reel for one to five circles, and the end parts of the steel wire rope are fixed; the motor is a single-phase double-value capacitance-operating bypassed magnetic braking type asynchronous motor; when the single-phase electric hoist lifts a heavy object, higher-value capacitance is used for starting operation; and when the single-phase electric hoist drops the heave object, lower-value capacitance is used for starting the operation. With the technical proposal, the invention provides the single-phase electric hoist which is simple in structure, safe to use and higher in working character, shuts down when the single-phase electric hoist drops to the lowest point, and is provided with the lower limit device.
Description
Technical field
The present invention relates to the single-phase electric gourd in the lifting weight-lifting equipment, particularly a kind of single-phase electric gourd with lower caging device.
Background technology
Single-phase electric gourd is a kind of general lifting weight-lifting equipment that uses, the single-phase electric gourd that occurs on market and the data and report mainly includes housing, be arranged on the reel of housing inboard, twine the steel rope that cooperates with reel, drive reel motor rotating retarder and upper limit device, when this equipment is transferred weight, after steel rope on the reel drains, because of lower caging device is not set, if fail in time to control operating element, motor can in time not shut down, and reel will rotate always, the steel rope reversing sense occurs on reel, then weight rises on the contrary, cause the damage of upper limit device, and may cause weight to fall inadequately because of the power that tightens up of steel cord ends when the back weight does not also land, have very big potential safety hazard when the steel rope on the reel drains; In the prior art, the drive motor of single-phase electric gourd is that single-phase monodrome capacitor operating is close to magnetic brake formula asynchronous dynamo, when this equipment is transferred weight, because of weight is done positive work, capacitance is the same when promoting weight can be excessive, causes electric machine temperature rise too fast too high, reduced the work system of motor.
Summary of the invention
The present invention has overcome the deficiency that prior art exists, and provides a kind of simple in structure, safe in utilization, higher relatively work system, a kind of single-phase electric gourd with lower caging device that shuts down immediately when dropping to nadir.
For achieving the above object, the present invention adopts following technical scheme: a kind of single-phase electric gourd with lower caging device, include housing, place the reel of housing inboard, retarder, drive the reel motor rotating, operating element, be wound in the steel rope on the reel, upper limit device and lower caging device, described single-phase electric gourd is provided with lower caging device, the guide rod that this lower caging device includes the micro-switch assembly and cooperates the control motor to rotate with the micro-switch assembly, this guide rod one end places the respective side of reel, the other end is conflicted with the micro-switch assembly and is cooperated, described reel correct position is provided with a through hole, this through hole of steel wire penetrating, twining 1 to 5 again encloses on reel, fixing steel cord ends then, described motor is that magnetic brake formula asynchronous dynamo is close in single-phase two-capacitance capacitive running.Said apparatus is provided with lower caging device with single-phase electric gourd, like this benefit of She Zhiing be actv. disappear except when single-phase electric gourd when dropping to nadir because of not shutting down immediately, and make the steel rope reversing sense on reel, the potential safety hazard that causes weight to rise once more or cause the upper limit device of single-phase electric gourd to damage; The reel correct position is provided with a through hole, also keeps 1 to 5 after the steel rope when making single-phase electric gourd transfer weight on the reel drains and enclose on reel, the potential safety hazard of having avoided the power that tightens up because of steel cord ends to cause weight to fall inadequately; Can increase substantially the safety of operation coefficient of single-phase electric gourd by said apparatus.
The present invention further is set to: described micro-switch assembly includes micro-switch, the micro-switch slippery fellow, head is transmitted in action, described micro-switch constitutes unlatching and closed by the foxy control of micro-switch, transmitting head by action between the end that described guide rod cooperates with the micro-switch assembly and the micro-switch slippery fellow constitutes and cooperates, described guide rod places an end of reel to extend to the reel dividing plate corresponding position at the close housing end wall place of reel, by the collision of steel rope to guide rod, guide rod is rotated, drive action and transmit the head rotation, touching micro-switch slippery fellow, thus realize micro-switch is opened and closure; Magnetic brake formula asynchronous dynamo is close in described single-phase two-capacitance capacitive running, utilizes the running of higher value capacitor start when single-phase electric gourd promotes weight, utilizes the running of smaller value capacitor start when transferring weight, has improved the work system of motor relatively.
The present invention further is set to: described guide rod pivot bush unit also is axially fixed on the body of retarder, make it to have only a rotational freedom, described action is transmitted head and is provided with the slope with the foxy side that contacts of micro-switch, this slope cooperates with micro-switch is foxy, being provided with like this makes guide rod be subjected to the collision of steel rope, thereby drive action and transmit head, impel the unlatching and the closure of micro-switch.
The present invention further is set to: described micro-switch is installed in the connection box.Said apparatus is installed in micro-switch in the connection box, and setting not only has the effect of protection switch like this, and attractive in appearance.
Below in conjunction with accompanying drawing the present invention is further described:
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the canoe scheme drawing of reel and steel rope in the embodiment of the invention.
The specific embodiment
As shown in Figure 1 and Figure 2, a kind of single-phase electric gourd with lower caging device, include housing 1, place housing 1 inboard reel 2, retarder 3, drive reel 2 motor rotating 4, operating element 5, be wound in steel rope 6, upper limit device 7 and lower caging device 8 on the reel 2; Described single-phase electric gourd is provided with lower caging device 8, in the present invention, described lower caging device 8 includes micro-switch 81, micro-switch slippery fellow 82, action transmits 83 and cooperates the guide rod 84 of controlling motor 4 rotations with the micro-switch assembly, guide rod 84 places an end of reel 2 to extend to reel dividing plate 21 corresponding positions at the close housing 1 end wall place of reel 2, the other end of guide rod 84 and action are transmitted 83 and are in transmission connection, here need to prove that guide rod 84 and action transmit the relation of being in transmission connection of 83, guide rod 84 can transmit 83 with action captives joint, also can be flexible connection, described captive joint can transmit 83 with guide rod 84 and action by the mode of screw or riveted joint or welding and be connected, described flexible connection is meant after 83 pivot bush unit is transmitted in guide rod 84 and action and tightens up by screw, described these be the technical scheme that is equal to all with the present invention; Described reel 2 correct positions are provided with a through hole 22, and steel rope 6 passes this through hole 22, and twine 1 to 5 again and enclose on reel 2, the fixing end of steel rope 6 then, as shown in Figure 3; Described motor 4 is that magnetic brake formula asynchronous dynamo is close in single-phase two-capacitance capacitive running, utilizes the running of higher value capacitor start when single-phase electric gourd promotes weight, utilizes the running of smaller value capacitor start when transferring weight, has improved the work system of motor relatively.Said apparatus is provided with lower caging device 8 with single-phase electric gourd, like this benefit of She Zhiing be actv. disappear except when single-phase electric gourd when dropping to nadir because of not stopping immediately, and make steel rope 6 reversing senses on reel 2, the potential safety hazard that causes weight to rise once more or cause the upper limit device 7 of single-phase electric gourd to damage; Reel 2 correct positions are provided with a through hole 22, also keep 1 to 5 after the steel rope 6 when making single-phase electric gourd transfer weight on the reel 2 drains and enclose on reel 2, the potential safety hazard of having avoided the power that tightens up because of steel rope 6 ends to cause weight to fall inadequately; Can increase substantially the safety of operation coefficient of single-phase electric gourd by said apparatus.
In embodiments of the present invention, described guide rod 84 pivot bush units also are axially fixed on the body of retarder 3, make it to have only a rotational freedom, described action is transmitted 83 and is provided with slope 831 with micro-switch slippery fellow 82 sides that contact, this slope 831 cooperates with micro-switch foxy 82, the unlatching and the closure of control micro-switch 81, when single-phase electric gourd is transferring that the steel rope on the reel 26 reduces as far as possible in the weight process, reel 2 is subjected to the propulsive effort of motor 4 can not stop rotation, thereby cause steel rope 6 from another direction revolution, the time conflict in revolution and to be located at an end of the other guide rod 84 of reel 2, the collision that guide rod 84 is subjected to steel rope 6 rotates, thereby guide rod 84 drives action and transmits 83, make it to rotate, micro-switch slippery fellow 82 just can transmit under the promotion on 83 slope 831 to micro-switch 81 sliding going in action, makes micro-switch 81 actions, motor 4 shuts down immediately, thereby plays the effect of lower limit; In the present invention, described action 83 the main effect of transmitting is in order to touch and compress micro-switch slippery fellow 82, so, action is transmitted on 83 and not only is confined to be provided with slope 831, setting thereon compresses projection and also can reach same effect, can be used as a technical scheme that is equal to the present invention; Described micro-switch 81 is installed in the connection box 9, and setting not only has the effect of protection switch like this, and attractive in appearance.
Concrete principle of the present invention is: when single-phase electric gourd descends from eminence, steel rope 6 progressively winds from reel 2, drop to nadir and when on the rise up to steel rope 6, because reel 2 continues rotation, steel rope 6 is around to the greatest extent again with reel 2 back-rolls thereon, at this moment steel rope 6 contacts with guide rod 84, steel rope 6 collision guide rods 84, the other end of guide rod 84 just can order about action and transmit 83 rotation, promote micro-switch slippery fellow 82 and make micro-switch 81 actions, motor 4 shuts down immediately, thereby plays the effect of lower limit.
Claims (5)
1, a kind of single-phase electric gourd with lower caging device, include housing, place the reel of housing inboard, retarder, drive the reel motor rotating, operating element, be wound in the steel rope on the reel, upper limit device and lower caging device, it is characterized in that: described single-phase electric gourd is provided with lower caging device, the guide rod that this lower caging device includes the micro-switch assembly and cooperates the control motor to rotate with the micro-switch assembly, this guide rod one end places the respective side of reel, the other end is conflicted with the micro-switch assembly and is cooperated, described reel correct position is provided with a through hole, this through hole of steel wire penetrating, twining 1 to 5 again encloses on reel, fixing steel cord ends then, described motor is that magnetic brake formula asynchronous dynamo is close in single-phase two-capacitance capacitive running.
2, a kind of single-phase electric gourd according to claim 1 with lower caging device, it is characterized in that: described micro-switch assembly includes micro-switch, the micro-switch slippery fellow, head is transmitted in action, described micro-switch constitutes unlatching and closed by the foxy control of micro-switch, transmitting head by action between the end that described guide rod cooperates with the micro-switch assembly and the micro-switch slippery fellow constitutes to conflict and cooperates, described guide rod places an end of reel to extend to the reel dividing plate corresponding position at the close housing end wall place of reel, magnetic brake formula asynchronous dynamo is close in described single-phase two-capacitance capacitive running, when single-phase electric gourd promotes weight, utilize the running of higher value capacitor start, utilize the running of smaller value capacitor start when transferring weight.
3, a kind of single-phase electric gourd according to claim 1 and 2 with lower caging device, it is characterized in that: described guide rod pivot bush unit also is axially fixed on the body of retarder, make it to have only a rotational freedom, described action is transmitted head and is provided with the slope with the foxy side that contacts of micro-switch, this slope cooperates with micro-switch is foxy, the unlatching and the closure of control micro-switch.
4, a kind of single-phase electric gourd according to claim 3 with lower caging device, it is characterized in that: described guide rod pivot bush unit also is axially fixed on the body of retarder, make it to have only a rotational freedom, described action is transmitted head and is provided with the slope with the foxy side that contacts of micro-switch, this slope cooperates with micro-switch is foxy, the unlatching and the closure of control micro-switch.
5, a kind of single-phase electric gourd with lower caging device according to claim 1 and 2, it is characterized in that: described micro-switch is installed in the connection box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101310885A CN101348218A (en) | 2008-08-19 | 2008-08-19 | Single-phase electric gourd with lower caging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101310885A CN101348218A (en) | 2008-08-19 | 2008-08-19 | Single-phase electric gourd with lower caging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101348218A true CN101348218A (en) | 2009-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101310885A Pending CN101348218A (en) | 2008-08-19 | 2008-08-19 | Single-phase electric gourd with lower caging device |
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| CN (1) | CN101348218A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103863961A (en) * | 2014-03-05 | 2014-06-18 | 八达机电有限公司 | Novel electric hoist with built-in motor |
| CN110509830A (en) * | 2018-05-22 | 2019-11-29 | 株式会社美姿把 | The control device of electric winch |
-
2008
- 2008-08-19 CN CNA2008101310885A patent/CN101348218A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103863961A (en) * | 2014-03-05 | 2014-06-18 | 八达机电有限公司 | Novel electric hoist with built-in motor |
| CN103863961B (en) * | 2014-03-05 | 2015-12-30 | 八达机电有限公司 | Electric motor built-in electric block |
| CN110509830A (en) * | 2018-05-22 | 2019-11-29 | 株式会社美姿把 | The control device of electric winch |
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Open date: 20090121 |