CN219991012U - Electric hoist control circuit and electric hoist - Google Patents
Electric hoist control circuit and electric hoist Download PDFInfo
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- CN219991012U CN219991012U CN202321227148.XU CN202321227148U CN219991012U CN 219991012 U CN219991012 U CN 219991012U CN 202321227148 U CN202321227148 U CN 202321227148U CN 219991012 U CN219991012 U CN 219991012U
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- computer controller
- electric hoist
- upper computer
- lower computer
- button
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- 230000033228 biological regulation Effects 0.000 claims abstract description 29
- 238000002955 isolation Methods 0.000 claims abstract description 15
- 230000001174 ascending effect Effects 0.000 claims description 19
- 238000001514 detection method Methods 0.000 claims description 12
- 230000000630 rising effect Effects 0.000 description 10
- 238000004891 communication Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Abstract
The utility model relates to the technical field of electric hoist, in particular to an electric hoist control circuit and an electric hoist, wherein the electric hoist control circuit comprises an upper computer controller and a lower computer controller, the upper computer controller is arranged in a handle, the upper computer controller is electrically connected with a potentiometer, the upper computer controller is communicated with the lower computer controller, a speed regulation control signal is sent to the lower computer controller according to an analog signal input by the potentiometer, the lower computer controller is arranged in an electric hoist main body, a data isolation module is arranged between the lower computer controller and the upper computer controller, and the lower computer controller controls a motor to operate at different speeds according to the received speed regulation control signal. The electric hoist control circuit and the electric hoist provided by the utility model realize the functions of upward, downward, scram, stepless speed regulation and overload alarm of the electric hoist on the premise of ensuring the electric safety.
Description
Technical Field
The utility model relates to the technical field of electric hoist, in particular to an electric hoist control circuit and an electric hoist.
Background
The electric hoist is hoisting equipment, is generally arranged on the crown block and the gantry crane and is used for hoisting and transferring goods, and has the characteristics of small volume, light dead weight, simple operation, convenient use and the like, and is widely applied to industrial and mining enterprises, storage, wharfs and other places.
The electric hoist comprises a motor, a winding drum, a steel wire rope, a handle and other parts, and can realize the functions of ascending, descending, scram, speed regulation and the like through operating the handle. Most of the electric hoists on the market at present only have three functions of upward, downward and scram, and the rest of the electric hoists with speed regulating functions also have two-gear speed regulation of a fast gear and a slow gear, so that stepless speed regulation cannot be realized. The handle of the electric hoist needs to be isolated from the mains supply in consideration of electric safety, the isolated circuit can only transmit signals through the optical coupler, and the potentiometer for realizing stepless speed regulation emits analog signals which cannot be transmitted through the optical coupler.
Disclosure of Invention
The utility model provides a speed regulating circuit of an electric hoist and the electric hoist, which can realize stepless speed regulation on the premise of ensuring electrical safety, and solves the technical problem that the electric hoist in the prior art can only realize speed regulation in two steps, namely quick speed regulation and slow speed regulation, but can not realize stepless speed regulation.
The utility model adopts the technical scheme that:
an electric hoist control circuit comprising:
the upper computer controller is configured in the handle, is electrically connected with a potentiometer, is communicated with the lower computer controller and sends a speed regulation control signal to the lower computer controller according to an analog signal input by the potentiometer;
the lower computer controller is configured in the electric hoist main body, a data isolation module is arranged between the lower computer controller and the upper computer controller, and the lower computer controller controls the motor to run at different speeds according to the received speed regulation control signals.
Further, a buzzer is further arranged in the handle, the buzzer is electrically connected with the upper computer controller, a load detection module is arranged in the electric hoist main body, the load detection module is electrically connected with the lower computer controller, when the load detection module detects that the load is overweight, the lower computer controller sends an alarm signal to the upper computer controller, and the upper computer controller controls the buzzer to alarm according to the received alarm signal.
Further, an ascending button is arranged on the handle and is electrically connected with the upper computer controller, when the ascending button is pressed, the upper computer controller sends an ascending control signal to the lower computer controller, and the lower computer controller controls the motor to run according to the received ascending control signal.
Further, a descending button is further arranged on the handle, the descending button is electrically connected with the upper computer controller, when the descending button is pressed down, the upper computer controller sends a descending control signal to the lower computer controller, and the lower computer controller controls the motor to run according to the received descending control signal.
Further, a scram button is further arranged on the handle, the scram button is electrically connected with the upper computer controller, when the scram button is pressed down, the upper computer controller sends a scram control signal to the lower computer controller, and the lower computer controller controls the motor to stop running according to the received scram control signal.
Further, the electric hoist control circuit also comprises an isolation power supply, and the isolation power supply is used for providing working voltage for the handle.
In another aspect of the utility model, an electric hoist is provided, comprising an electric hoist control circuit as described in any one of the above.
The utility model has the beneficial effects that:
1. according to the electric hoist control circuit provided by the utility model, the upper computer controller is arranged in the handle, the upper computer controller is communicated with the lower computer controller in the electric hoist body, the upper computer controller and the lower computer controller are isolated through the data isolation chip, the electric safety is ensured, the upper computer controller is connected with the potentiometer, the upper computer controller outputs a speed regulation control signal to the lower computer controller according to a voltage analog signal input by the potentiometer, and the lower computer controller controls the motor to run at different speeds, so that the stepless speed regulation of the electric hoist motor is realized. In addition, the functions of upward, downward, emergency stop and overload alarm of the electric hoist are realized on the premise of ensuring safety.
2. The utility model sets up the upper computer control device in the hand grip, make the function key-press of ascending, descending, scram, speed regulation etc. in the hand grip connect to the upper computer control device first, then send different control signals to the lower computer control device by the upper computer control device according to the signal change of each function key-press, the lower computer control device controls the electric motor to carry out the corresponding function again. Compared with the prior art, the cable between the handle and the electric hoist body is greatly reduced, the cost is low, the wire harness is tidier, and the maintenance is convenient.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic block diagram of motor control in the present utility model;
FIG. 2 is a schematic block diagram of an overload alarm in accordance with the present utility model;
FIG. 3 is a schematic circuit diagram of a handle portion of the present utility model;
fig. 4 is a schematic circuit diagram of the body of the electric hoist according to the present utility model.
Detailed Description
Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.
The embodiment provides a multi-functional electric hoist, the electric hoist includes the electric hoist body (including parts such as motor, reel, wire rope, lifting hook) that is directly used for lifting by crane and migration goods and is used for operating the handle, wired connection between electric hoist body and the handle, operates through the function button on the handle, except can realize rising, decline, scram function, can also realize functions such as electrodeless speed regulation and overload warning. The implementation of each function is described in detail below in connection with a specific control circuit.
As shown in fig. 1-4, the embodiment further provides an electric hoist control circuit, which comprises an upper computer controller U1 and a lower computer controller U2, wherein the upper computer controller U1 is configured in a handle, a potentiometer is further arranged on the handle, the potentiometer is electrically connected with the upper computer controller U1, and voltage analog signals with different magnitudes can be output to the upper computer controller U1 by adjusting the potentiometer. Specifically, as shown in fig. 3, the terminal P5 is connected to the potentiometer, the potentiometer includes three pins, the first pin and the third pin are connected to input voltages, the second pin in the middle is connected to the upper computer controller U1, a potentiometer speed regulation signal is output to the upper computer controller U1, and when a knob for operating the potentiometer rotates, the voltage output to the upper computer controller U1 by the second pin also changes correspondingly.
Further, the lower computer controller U2 is configured in the electric hoist main body, the lower computer controller U2 is in communication with the upper computer controller U1, the lower computer controller U2 and the upper computer controller U1 are isolated through the data isolation chip U3, the upper computer controller U1 sends corresponding speed regulation control signals to the lower computer controller U2 according to voltage analog signals input by the potentiometer, and the lower computer controller U2 controls motors in the electric hoist main body to operate at different speeds according to the received speed regulation control signals, so that stepless speed regulation of the motors is realized. Specifically, as shown in fig. 3, two communication pins of the upper computer controller U1 are connected to the terminal P1, as shown in fig. 4, two communication pins of the lower computer controller U2 are connected to a first end of the data isolation chip U3, a second end of the data isolation chip U3 is connected to the terminal P6, the terminal P1 and the terminal P6 are connected through a cable, a speed regulation control signal sent by the upper computer controller U1 can be transmitted to the lower computer controller U2 in a communication manner, and the lower computer controller U2 can directly or indirectly control the working mode of the motor.
Thus, in the embodiment, the upper computer controller U1 is arranged in the handle of the electric hoist, the upper computer controller U1 is communicated with the lower computer controller U2 in the electric hoist body, and the upper computer controller U1 and the lower computer controller U2 are isolated by the data isolation chip U3, so that the electric safety is ensured; further, the upper computer controller U1 is connected with the potentiometer, and the upper computer controller U1 outputs a speed regulation control signal to the lower computer controller U2 according to the voltage change of the potentiometer, so that stepless speed regulation of the motor is realized.
In addition, since the upper computer controller U1 is disposed in the handle in this embodiment, the functional keys such as ascending, descending, emergency stop, speed regulation and the like in the handle can be connected to the upper computer controller U1 first, then the upper computer controller U1 sends different control signals to the lower computer controller U2 according to the signal changes of the functional keys, and the lower computer controller U2 controls the motor to execute the corresponding functions. In the prior art, each function button such as rising, descending, scram, speed governing all needs a set of cable to be connected with the electric hoist body, and this embodiment sets up, reduces multiunit cable to only need two communication cable for cable between handle and the electric hoist body reduces greatly, and is with low costs, and the pencil is also more clean and tidy, convenient to overhaul, and when the button function of handle is more, the cable of saving is also more.
The ascent, descent, scram and overload alarm functions of the present embodiment are described in detail below.
The handle of this embodiment is provided with a rising button, the rising button is electrically connected with the upper computer controller U1, when the rising button is pressed, the upper computer controller U1 sends a rising control signal to the lower computer controller U2, and the lower computer controller U2 controls the motor to operate according to the received rising control signal, so that the goods are lifted. Specifically, as shown in fig. 3, the terminal P2 is connected to an ascending button on the handle, one end of the ascending button is grounded, and the other end of the ascending button is connected to an ascending control IO port of the upper computer controller U1, and when the ascending button is pressed, the ascending control IO port of the upper computer controller U1 receives a signal change and sends an ascending control signal to the lower computer controller U2.
Further, a descending button is further arranged on the handle of the embodiment, the descending button is electrically connected with the upper computer controller U1, when the descending button is pressed, the upper computer controller U1 sends a descending control signal to the lower computer controller U2, and the lower computer controller U2 controls the motor to run according to the received descending control signal, so that goods are lowered. Specifically, as shown in fig. 3, the terminal P4 is connected to a down button on the handle, one end of the down button is grounded, and the other end of the down button is connected to a down control IO port of the upper computer controller U1, and when the down button is pressed, the down control IO port of the upper computer controller U1 receives a signal change and sends a down control signal to the lower computer controller U2.
Further, a scram button is further disposed on the handle of the embodiment, and the scram button is electrically connected with the upper computer controller U1, when the scram button is pressed, the upper computer controller U1 sends a scram control signal to the lower computer controller U2, and the lower computer controller U2 controls the motor to stop running according to the received scram control signal. Specifically, as shown in fig. 3, the terminal P3 is connected to the emergency stop button on the handle, one end of the emergency stop button is grounded, the other end is connected to the emergency stop control IO port of the upper computer controller U1, when the emergency stop button is pressed, the emergency stop control IO port of the upper computer controller U1 receives signal change and sends an emergency stop control signal to the lower computer controller U2, and controls the motor to stop running, even if the rising button or the falling button is pressed at this time, the motor will not run, and only when the emergency stop button is not pressed, the rising button and the falling button can work normally, thereby ensuring safety.
The functional keys such as the rising button, the descending button, the emergency stop button, the potentiometer knob and the like of the handle are all connected to the upper computer controller U1, and the upper computer controller U1 and the lower computer controller U2 are communicated to control the motor, so that only two communication cables are needed, and the number of the cables is greatly reduced.
In addition, this embodiment still is equipped with the buzzer in the handle, and buzzer and host computer controller U1 electricity are connected, are equipped with load detection module in the electric hoist main part, and load detection module is connected with lower computer controller U2 electricity, and load detection module detects motor load in real time, and when detecting that the load is overweight, lower computer controller U2 sends alarm signal to host computer controller U1, and host computer controller U1 is reported to the police according to alarm signal control buzzer that receives. Specifically, as shown in fig. 3, the terminal BEEP1 is connected to the buzzer, one end of the buzzer is grounded, the other end of the buzzer is connected to the buzzer control IO port of the upper computer controller U1, and the upper computer controller U1 controls the buzzer to work according to the signal sent by the lower computer controller U2. The load detection module can be a weight sensor for detecting the weight of the goods and comparing the weight with a preset value, or can be a current detection module, a temperature detection module and the like, and whether the motor is overloaded is judged through parameters such as current and temperature rise.
As shown in fig. 4, the electric hoist control circuit of the embodiment further includes an isolation power supply D1, where the isolation power supply D1 is configured to convert a mains voltage or a dc voltage obtained by reducing the mains voltage into a suitable working voltage, and provide the working voltage to the handle. The power supply voltage of the handle is also isolated, and the electrical safety is further improved.
As shown in fig. 3, a terminal SW2 is connected to SWCLK and SWDIO interfaces of the upper computer controller U1 for program burning and debugging; also, as shown in fig. 4, the terminal SW1 is connected to SWCLK and SWDIO interfaces of the lower computer controller U2 for program burn-in debugging.
As an alternative implementation manner of this embodiment, the model of the upper computer controller U1 IS STM32F103, the model of the upper computer controller U2 IS STM32F103 or other special driving chips, the model of the data isolation chip U3 IS CA-IS3721, the model of the isolation power supply D1 IS B1205, and those skilled in the art can select other types of chips as required in other embodiments.
In summary, the electric hoist control circuit and the electric hoist provided by the embodiment realize the functions of upward, downward, scram, stepless speed regulation and overload alarm of the electric hoist on the premise of ensuring the electric safety.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above examples are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solution of the present utility model should fall within the scope of protection defined by the claims of the present utility model without departing from the spirit of the design of the present utility model.
Claims (7)
1. An electric hoist control circuit, characterized by comprising:
the upper computer controller is configured in the handle, is electrically connected with a potentiometer, is communicated with the lower computer controller and sends a speed regulation control signal to the lower computer controller according to an analog signal input by the potentiometer;
the lower computer controller is configured in the electric hoist main body, a data isolation module is arranged between the lower computer controller and the upper computer controller, and the lower computer controller controls the motor to run at different speeds according to the received speed regulation control signals.
2. The electric hoist control circuit according to claim 1, wherein a buzzer is further arranged in the handle, the buzzer is electrically connected with the upper computer controller, a load detection module is arranged in the electric hoist main body, the load detection module is electrically connected with the lower computer controller, when the load detection module detects that the load is overweight, the lower computer controller sends an alarm signal to the upper computer controller, and the upper computer controller controls the buzzer to alarm according to the received alarm signal.
3. The electric hoist control circuit according to claim 1 or 2, characterized in that the handle is provided with an ascending button, the ascending button is electrically connected with the upper computer controller, when the ascending button is pressed, the upper computer controller sends an ascending control signal to the lower computer controller, and the lower computer controller controls the motor to operate according to the received ascending control signal.
4. The electric hoist control circuit according to claim 3, wherein the handle is further provided with a down button, the down button is electrically connected with the upper computer controller, when the down button is pressed, the upper computer controller sends a down control signal to the lower computer controller, and the lower computer controller controls the motor to operate according to the received down control signal.
5. The electric hoist control circuit of claim 4, characterized in that the handle is further provided with a scram button, the scram button is electrically connected with the upper computer controller, when the scram button is pressed, the upper computer controller sends a scram control signal to the lower computer controller, and the lower computer controller controls the motor to stop running according to the received scram control signal.
6. The electric hoist control circuit of claim 1, further comprising an isolation power supply for providing an operating voltage to the handle.
7. An electric hoist comprising an electric hoist control circuit as claimed in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321227148.XU CN219991012U (en) | 2023-05-20 | 2023-05-20 | Electric hoist control circuit and electric hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321227148.XU CN219991012U (en) | 2023-05-20 | 2023-05-20 | Electric hoist control circuit and electric hoist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219991012U true CN219991012U (en) | 2023-11-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321227148.XU Active CN219991012U (en) | 2023-05-20 | 2023-05-20 | Electric hoist control circuit and electric hoist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219991012U (en) |
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2023
- 2023-05-20 CN CN202321227148.XU patent/CN219991012U/en active Active
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