CN106379825A - Induction type dual-power lifting device - Google Patents

Abstract

The invention provides an inductive dual-power lifting device, which includes a winch, a lifting rope, a placement frame, a weight detection platform, a central controller, a frequency converter and a hydraulic station, and the winch includes a first lifting motor, a second lifting motor, a brake, The reel, the first clutch and the second clutch, the output shaft end of the first lifting motor is connected with the input shaft end of the first clutch; The second hoisting motor is respectively connected with the frequency converter, the brake, the first clutch and the second clutch are respectively controlled by the hydraulic station, and the weight detection platform and the frequency converter are respectively connected with the central controller. The beneficial effect of the present invention is that the present invention can automatically switch the lifting motor according to the weight of the lifting goods, reduce the impact on the power grid caused by the start-up of the high-power motor, and further reduce energy consumption. service life and reliability.

Description

An induction dual power lifting device

technical field

The invention relates to an induction type double power lifting device.

Background technique

The lifting device is an indispensable device in modern industrial production. Due to the high power of the device and the frequent start or stop of the lifting motor during the working process of the device, it will cause an impact on the power grid especially when starting and stopping, and the power consumption will increase at the moment of starting. Existing motors usually use soft starters and frequency converters to reduce the impact on the grid when the motor starts. However, in order to ensure the specified lifting speed and output power at the same time, the frequency converter can only be used when starting and stopping . Existing lifting devices usually adopt a single lifting power system, and the power of the lifting motor is selected according to the maximum lifting weight. In the actual use process, due to the reduction of the weight of the lifting goods or the no-load operation of the lifting container, a single high-power motor will still consume a lot of power during no-load, light-load startup or operation, resulting in excessive power output and energy waste. Therefore , to design an inductive dual-power lifting device to solve the above-mentioned deficiencies.

Contents of the invention

The technical problem to be solved by the present invention is to automatically switch the power lifting system according to the lifting weight of the device, reduce energy consumption and increase the service life of the device.

The technical solution adopted by the present invention to solve its technical problems is:

Provided is an inductive dual-power lifting device, including a winch, a lifting rope, a placement frame, a weight detection platform, a central controller, a frequency converter, and a hydraulic station, and the winch includes a first lifting motor, a second lifting motor, a brake, a first Reducer, second reducer, reel, first clutch and second clutch, the output shaft end of the first lifting motor is connected with the input shaft end of the first clutch, and the output shaft end of the first clutch is input to the brake through a coupling The shaft ends are connected, the output shaft end of the brake is connected with the input shaft end of the first reducer through a coupling, the output shaft of the first reducer is connected with the reel; the output shaft end of the second lifting motor is connected with the second clutch The input shaft end is connected, the output shaft end of the second clutch is connected with the input shaft end of the brake through a coupling, the output shaft end of the brake is connected with the input shaft end of the second reducer through a coupling, and the output of the second reducer The shaft is connected to the reel, and the output shaft of the first reducer is set coaxially with the output shaft of the second reducer; the reel is wound with a hoisting rope, and one end of the hoisting rope is connected with a placement frame, and a weight is installed at the bottom of the placement frame. The detection platform, the first lifting motor and the second lifting motor are respectively connected with the frequency converter, the brake, the first clutch and the second clutch are respectively controlled by the hydraulic station, and the weight detection platform and the frequency converter are respectively connected with the central controller.

Further, both the first clutch and the second clutch are hydraulic clutches.

Further, the brake is a hydraulic brake.

Further, the central controller is composed of a central processing module, a storage module, a display module, an input module and a transmission module.

Further, a steel plate is installed on the top of the weight detection platform, and a pressure sensor is installed on the bottom of the steel plate, and the pressure sensor is connected to the transmission module of the central controller.

Further, the power of the first lifting motor is selected according to the rated lifting weight of the device, and the power of the second lifting motor is selected according to the sum of the weight of the placing frame and the weight detection platform, and the second lifting motor can be set by the central controller. The minimum weight for starting the first lifting motor is set by the central controller to set the maximum weight for starting the second lifting motor.

Further, when the first lifting motor transmits torque to the first reducer, the second lifting motor is disconnected from the second reducer; when the second lifting motor transmits torque to the second reducer, the first lifting motor and the second reducer A reducer is disconnected.

The beneficial effect of the present invention is that the present invention can automatically switch the lifting motor according to the weight of the goods to be lifted, realize the matching of the power of the lifting motor and the lifting weight, reduce the impact of the high-power motor starting on the power grid, and further reduce energy consumption. Multiple lifting systems work alternately, which can improve the service life and reliability of the device.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a schematic diagram of an overall installation structure provided by an embodiment of the present invention;

Fig. 2 is a three-dimensional structure schematic diagram of a winch provided by an embodiment of the present invention;

Fig. 3 is a schematic view of the bottom structure of the winch provided by the embodiment of the present invention;

Fig. 4 is a schematic diagram of the connection structure of the control part provided by the embodiment of the present invention;

In the figure: 1. winch, 1.1. first hoist motor, 1.2. second hoist motor, 1.3. brake, 1.4. first reducer, 1.5. second reducer, 1.6. reel, 1.7. first clutch, 1.8. Second clutch, 2. Hoisting rope, 3. Placement frame, 4. Weight detection table, 5. Central controller, 6. Frequency converter, 7. Hydraulic station.

detailed description

The above solution will be further described below in conjunction with specific embodiments. It should be understood that these examples are used to illustrate the present invention and not to limit the scope of the present invention. The implementation conditions used in the examples can be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not indicated are usually the conditions in routine experiments.

As shown in Figures 1-4, Figure 1 is a schematic diagram of the overall installation structure provided by the embodiment of the present invention, Figure 2 is a schematic diagram of the three-dimensional structure of the winch provided by the embodiment of the present invention, and Figure 3 is a schematic diagram of the winch provided by the embodiment of the present invention Looking at the structural diagram from above, Fig. 4 is a schematic diagram of the connection structure of the control part provided by the embodiment of the present invention.

In a specific embodiment, an induction type dual power lifting device is provided, including a winch 1, a lifting rope 2, a placement frame 3, a weight detection platform 4, a central controller 5, a frequency converter 6 and a hydraulic station 7, and the winch 1 includes the first lifting motor 1.1, the second lifting motor 1.2, the brake 1.3, the first reducer 1.4, the second reducer 1.5, the reel 1.6, the first clutch 1.7 and the second clutch 1.8, the output of the first lifting motor 1.1 The shaft end is connected to the input shaft end of the first clutch 1.7, the output shaft end of the first clutch 1.7 is connected to the input shaft end of the brake 1.3 through a coupling, and the output shaft end of the brake 1.3 is connected to the input of the first reducer 1.4 through a coupling The shaft ends are connected, the output shaft of the first reducer 1.4 is connected with the reel 1.6; the output shaft end of the second lifting motor 1.2 is connected with the input shaft end of the second clutch 1.8, and the output shaft end of the second clutch 1.8 passes through the shaft coupling The brake is connected to the input shaft end of the brake 1.3, the output shaft end of the brake 1.3 is connected to the input shaft end of the second reducer 1.5 through a coupling, and the output shaft of the second reducer 1.5 is connected to the reel 1.6. The output shaft of the first reducer 1.4 is set coaxially with the output shaft of the second reducer 1.5; the drum 1.6 is wound with a hoisting rope 2, one end of the hoisting rope 2 is connected with a placement frame 3, and a weight detection platform 4 is installed at the bottom of the placement frame 3 , the first hoisting motor 1.1 and the second hoisting motor 1.2 are respectively connected to the frequency converter 6, the brake 1.3, the first clutch 1.7 and the second clutch 1.8 are controlled by the hydraulic station 7 respectively, and the weight detection table 4 and the frequency converter 6 are respectively connected to the The central controller 5 is connected.

As a preference, the first clutch 1.7 and the second clutch 1.8 are both hydraulic clutches, which have the characteristics of compact structure and large transmission torque. The starting process is stable and can be remotely controlled. Therefore, the centralized control.

Preferably, the brake 1.3 is a hydraulic brake, which has a large braking torque, and can assist the brake on the reel 1.6 to perform braking, which facilitates synchronous control through the hydraulic station 7 .

Preferably, the central controller 5 is composed of a central processing module, a storage module, a display module, an input module and a transmission module.

As preferably, a steel plate is installed on the top of the weight detection platform 4, and a pressure sensor is installed on the bottom of the steel plate. The pressure sensor is connected to the transmission module of the central controller 5. By placing the goods on the steel plate, the pressure sensor detects the The weight value and the data are transmitted to the central controller 5, and the central controller 5 processes the data, thereby controlling the start and stop of the first lifting motor 1.1 and the second lifting motor 1.2.

As preferably, the power of the first lifting motor 1.1 is selected according to the rated lifting weight of the device, and the power of the second lifting motor 1.2 is selected according to the sum of the weights of the placement frame 3 and the weight detection platform 4, which can be passed through the central The controller 5 sets the minimum weight for starting the first lifting motor 1.1, and sets the maximum weight for starting the second lifting motor 1.2 through the central controller 5.

As preferably, when the first lifting motor 1.1 transmits torque to the first reducer 1.4, the second lifting motor 1.2 is disconnected from the second reducer 1.5; when the second lifting motor 1.2 transmits torque to the second reducer 1.5 , the first lifting motor 1.1 is disconnected from the first reducer 1.4, which can reduce running resistance.

In the specific working process, the goods are first placed on the weight detection platform 4 in the placement frame 3, the weight detection platform 4 measures the weight of the goods and sends the information to the central controller 5, and the central controller 5 will measure the weight of the goods Add the sum of the weight value of the placement frame 3 and the weight detection platform 4 and compare it with the value already set in the storage module, when the weight value of the goods plus the sum of the weight value of the placement box 3 and the weight detection platform 4 is greater than or equal to When the value has been set, the central controller 5 controls the first lifting motor 1.1 to start through the frequency converter 6, and the hydraulic station 7 drives the first clutch 1.7 to make the first lifting motor 1.1 transmit the torque to the input shaft end of the first reducer 1.4 At the same time, the hydraulic station 7 drives the brake 1.3 to stop braking, so the goods are lifted by the first lifting motor 1.1; when the sum of the weight value of the goods plus the weight value of the placement frame 3 and the weight detection platform 4 is less than the set value , the central controller 5 controls the start of the second lifting motor 1.2 through the frequency converter 6, and the hydraulic station 7 drives the second clutch 1.8 so that the second lifting motor 1.2 transmits the torque to the input shaft end of the second reducer 1.5. At the same time, the hydraulic station 7 Drive the brake 1.3 to stop the braking, so the goods are lifted up by the second lifting motor 1.2; the power of the above-mentioned second lifting motor 1.2 is less than the power of the first lifting motor 1.1, so the lowering of the placing frame 3 uses the second lifting motor 1.2 to run Therefore, it can automatically switch the lifting motor according to the weight of the lifting goods, realize the matching of the power of the lifting motor and the lifting weight, reduce the impact of the high-power motor starting on the power grid, and then reduce energy consumption. Through multiple The lifting system works alternately, which can improve the service life and reliability of the device.

Inspired by the above-mentioned ideal embodiment according to the present invention, through the above-mentioned description content, relevant workers can make various changes and modifications within the scope of not departing from the technical idea of the present invention. The technical scope of the present invention is not limited to the content in the specification, but must be determined according to the scope of the claims.

Claims (7)

1. An inductive double power hoisting device, comprising a winch, a hoisting rope, a placement frame, a weight detection platform, a central controller, a frequency converter and a hydraulic station, is characterized in that the winch comprises a first hoisting motor, a second hoisting motor, Brake, the first reducer, the second reducer, the reel, the first clutch and the second clutch, the output shaft end of the first lifting motor is connected with the input shaft end of the first clutch, and the output shaft end of the first clutch is connected through the shaft coupling The brake is connected to the input shaft end of the brake, the output shaft end of the brake is connected to the input shaft end of the first reducer through a coupling, and the output shaft of the first reducer is connected to the reel; the output shaft end of the second lifting motor It is connected with the input shaft end of the second clutch, the output shaft end of the second clutch is connected with the input shaft end of the brake through a coupling, the output shaft end of the brake is connected with the input shaft end of the second reducer through a coupling, and the second The output shaft of the reducer is connected to the reel, and the output shaft of the first reducer and the output shaft of the second reducer are coaxially arranged; the reel is wound with a lifting rope, and one end of the lifting rope is connected with a placement frame, and the placement frame A weight detection platform is installed at the bottom, the first lifting motor and the second lifting motor are respectively connected to the frequency converter, the brake, the first clutch and the second clutch are respectively controlled by the hydraulic station, the weight detection platform and the frequency converter are respectively connected to the central controller connected. 2. An inductive dual power lifting device according to claim 1, characterized in that, both the first clutch and the second clutch are hydraulic clutches. 3. An inductive dual power lifting device according to claim 1, characterized in that the brake is a hydraulic brake. 4. An inductive dual-power lifting device according to claim 1, wherein the central controller is composed of a central processing module, a storage module, a display module, an input module and a transmission module. 5. A kind of inductive dual-power lifting device as claimed in claim 1, characterized in that, a steel plate is installed on the top of the weight detection table, and a pressure sensor is installed on the bottom of the steel plate, and the pressure sensor is connected to the transmission module of the central controller. connect. 6. An inductive dual-power lifting device as claimed in claim 1, wherein the power of the first lifting motor is selected according to the rated lifting weight of the device, and the power of the second lifting motor is selected according to the placement frame and the weight sum of the weight detection platform are selected, the minimum weight for starting the first lifting motor can be set by the central controller, and the maximum weight for starting the second lifting motor can be set by the central controller. 7. An induction type dual power lifting device as claimed in claim 1, characterized in that, when the first lifting motor transmits torque to the first reducer, the second lifting motor is disconnected from the second reducer; When the second hoisting motor transmits torque to the second speed reducer, the first hoist motor is disconnected from the first speed reducer.