CN217486418U - Frequency conversion speed reduction device of elevator - Google Patents
Frequency conversion speed reduction device of elevator Download PDFInfo
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- CN217486418U CN217486418U CN202221636180.9U CN202221636180U CN217486418U CN 217486418 U CN217486418 U CN 217486418U CN 202221636180 U CN202221636180 U CN 202221636180U CN 217486418 U CN217486418 U CN 217486418U
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Abstract
The utility model discloses a frequency conversion speed reduction device of a hoist, which comprises a hoist control cabinet; a frequency conversion main loop and a frequency conversion/power frequency switching control circuit are arranged in the control cabinet of the elevator; the frequency conversion/power frequency switching control circuit is in control connection with the frequency conversion main loop to switch the frequency conversion/power frequency circuit; the frequency conversion main loop comprises a hoist starting loop and a frequency conversion speed regulation loop; the variable frequency speed regulating loop is connected in parallel on the starting loop of the hoister; the utility model discloses can realize lifting machine frequency conversion deceleration function, accessible frequency conversion deceleration reduces chain wearing and tearing when the lifting machine underloads, reachs energy saving and consumption reduction target simultaneously.
Description
Technical Field
The utility model relates to a, concretely relates to lifting machine frequency conversion deceleration device.
Background
When the load of the packaging powder-returning hoisting machine is smaller than the design value, if the packaging powder-returning hoisting machine runs at full speed according to the power frequency, the equipment is unnecessarily abraded, the maintenance cost is increased, and the power consumption is increased. If the elevator is modified, the cost is high, and the use requirement cannot be met if the load is increased. There is therefore a need for an elevator deceleration device that does not change the existing equipment.
Disclosure of Invention
An object of the utility model is to prior art's defect and not enough, provide a simple structure, reasonable in design, convenient to use's lifting machine frequency conversion deceleration device.
In order to achieve the above object, the utility model adopts the following technical scheme: it comprises a hoist control cabinet; a frequency conversion main loop and a frequency conversion/power frequency switching control circuit are arranged in the elevator control cabinet; the frequency conversion/power frequency switching control circuit is in control connection with the frequency conversion main loop to switch the frequency conversion/power frequency circuit;
the frequency conversion main loop comprises a hoist starting loop and a frequency conversion speed regulation loop; the variable frequency speed regulating loop is connected in parallel on the starting loop of the hoister;
further, the hoisting machine starting loop comprises a breaker QF, a thermal relay FR, a switch KM1 and a hoisting motor M; the breaker QF, the thermal relay FR, the switch KM1 and the lifting motor M are connected in series;
further, the variable-frequency speed regulation loop comprises a frequency converter and a switch KM 2; the frequency converter and the switch KM2 are connected in series and then connected in parallel at two ends of the switch KM 1;
furthermore, a frequency conversion/power frequency conversion switch SA is arranged on the frequency conversion/power frequency switching control circuit.
After the structure is adopted, the utility model discloses beneficial effect does: a lifting machine frequency conversion deceleration device, can realize lifting machine frequency conversion deceleration function, accessible frequency conversion deceleration reduces the chain wearing and tearing when the lifting machine underload, reachs energy saving and consumption reduction target simultaneously, and has simple structure, sets up reasonable, cost of manufacture low grade advantage.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic view of a variable frequency control loop of the present invention;
fig. 2 is a schematic diagram of the frequency conversion/power frequency switching control circuit of the present invention.
Description of the reference numerals:
1. a frequency converter; 2. the motor M is lifted.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
The technical scheme adopted by the specific implementation mode is as follows: it comprises a hoist control cabinet; a frequency conversion main loop and a frequency conversion/power frequency switching control circuit are arranged in the control cabinet of the elevator; the frequency conversion/power frequency switching control circuit is in control connection with the frequency conversion main loop;
referring to fig. 1, the frequency conversion main loop includes a hoist start loop and a frequency conversion speed regulation loop; the variable frequency speed regulating loop is connected in parallel on the starting loop of the hoister; the hoisting machine starting loop comprises a breaker QF, a thermal relay FR, a switch KM1 and a hoisting motor M2; the breaker QF, the thermal relay FR, the switch KM1 and the lifting motor M2 are connected in series; the variable-frequency speed regulation loop comprises a frequency converter 1 and a switch KM 2; the frequency converter 1 and the switch KM2 are connected in series and then connected in parallel at two ends of the switch KM 1; the output frequency of the frequency converter 1 is adjusted by adjusting the potentiometer PR according to the requirement, so that the frequency conversion and speed reduction of the motor 2M can be realized.
Referring to fig. 2, a frequency conversion/power frequency conversion switch SA is arranged on the frequency conversion/power frequency conversion control circuit, and the frequency conversion/power frequency conversion switch SA is used for switching frequency conversion and power frequency, so that the frequency converter 1 is switched to power frequency operation when in failure, and the reliability of the equipment is improved.
The utility model discloses a improve the hoist control cabinet, increase converter 1 to set up frequency conversion/power frequency switching control circuit, realize the hoist frequency conversion deceleration, need not reform transform equipment and can solve the hoist deceleration problem, it is with low costs.
The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.
Claims (4)
1. A frequency conversion speed reduction device of a hoist is characterized by comprising a hoist control cabinet; a frequency conversion main loop and a frequency conversion/power frequency switching control circuit are arranged in the control cabinet of the elevator; the frequency conversion/power frequency switching control circuit is in control connection with the frequency conversion main loop to switch the frequency conversion/power frequency circuit;
the frequency conversion main loop comprises a hoist starting loop and a frequency conversion speed regulation loop; the frequency conversion speed regulation loop is connected in parallel on the starting loop of the hoister.
2. The frequency conversion and speed reduction device of the hoisting machine as claimed in claim 1, wherein the hoisting machine start loop comprises a breaker QF, a thermal relay FR, a switch KM1, a hoisting motor M; the breaker QF, the thermal relay FR, the switch KM1 and the lifting motor M are connected in series.
3. The frequency conversion and speed reduction device of the elevator as claimed in claim 2, wherein the frequency conversion and speed regulation loop comprises a frequency converter, a switch KM 2; the frequency converter and the switch KM2 are connected in series and then connected in parallel at two ends of the switch KM 1.
4. The frequency conversion and speed reduction device of the elevator as claimed in claim 1, wherein the frequency conversion/power frequency switching control circuit is provided with a frequency conversion/power frequency switch SA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221636180.9U CN217486418U (en) | 2022-06-29 | 2022-06-29 | Frequency conversion speed reduction device of elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221636180.9U CN217486418U (en) | 2022-06-29 | 2022-06-29 | Frequency conversion speed reduction device of elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217486418U true CN217486418U (en) | 2022-09-23 |
Family
ID=83316540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221636180.9U Active CN217486418U (en) | 2022-06-29 | 2022-06-29 | Frequency conversion speed reduction device of elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217486418U (en) |
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2022
- 2022-06-29 CN CN202221636180.9U patent/CN217486418U/en active Active
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