Top-mounted swing system

Abstract

The utility model relates to the technical field of top-mounted swing, and discloses a top-mounted swing system, which solves the problems of low hydraulic driving efficiency, high energy consumption, complex maintenance and slow response, and controls the switching of an oil inlet channel and an oil outlet channel of a hydraulic wheel cylinder through the swing of a swing control rod. The flow direction and the flow of the hydraulic oil are controlled, and then the operation state of the hydraulic oil is controlled to enable the oil pressure in the oil pipe to change, and the sensor can convert a pressure change signal of the oil pressure into an electric signal in real time and transmit the electric signal to the electric control assembly through the cable. Therefore, the swing control of the excavator top is changed from the traditional hydraulic drive to the motor direct drive, the operation accuracy and the response speed are greatly improved, the swing efficiency of the top is improved, and the energy consumption and the maintenance cost are reduced.

Description

Technical Field

[0001] This utility model relates to the field of upper garment swing technology, specifically an upper garment swing system. Background Technology

[0002] Traditional excavator swing systems primarily use hydraulic drives. The hydraulic system uses the flow of hydraulic oil to drive the swing motor, controlling the swing of the operator's cab and its connected boom and arm. While this system achieved functionality under past technological conditions, it has significant drawbacks.

[0003] First, hydraulic drive systems are relatively inefficient. Energy loss is inevitable during the flow and conversion of hydraulic oil, leading to a decrease in drive efficiency. Especially under high loads and frequent operation, the response speed and control precision of the hydraulic system are also limited, which may result in operational instability.

[0004] Secondly, hydraulic systems have high maintenance costs. Hydraulic oil needs to be changed regularly, and vulnerable components such as seals and pipelines also require regular inspection, increasing the complexity and cost of overall maintenance. Furthermore, hydraulic oil leaks not only affect equipment performance but also pollute the environment.

[0005] With increasingly stringent environmental and energy-saving requirements, the trend of switching from oil-powered to electric power is becoming more and more apparent. Continuing to use traditional hydraulic drives will inevitably fail to meet the demands of emerging markets for high efficiency and low energy consumption.

[0006] Therefore, a swing system for the upper garment is needed. Utility Model Content

[0007] The purpose of this invention is to provide a swing system for the upper structure. By using this device, the problems of low efficiency, high energy consumption, complex maintenance and slow response of hydraulic drive are solved.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a superstructure swing system, including a hydraulic sub-pump, a hydraulic oil tank connected to the hydraulic sub-pump via a replenishment oil pipe, a swing control lever connected to the hydraulic sub-pump via an oil pipe, a sensor connected to the hydraulic sub-pump via an oil pipe, and an electronic control component connected to the sensor via a cable. The swing of the swing control lever controls the switching of the inlet and outlet channels of the hydraulic sub-pump, thereby controlling the flow direction and flow rate of the hydraulic oil, and thus controlling its operating state to change the oil pressure in the oil pipe. The sensor can convert the pressure change signal of the oil pressure into an electrical signal in real time and transmit it to the electronic control component via the cable. This transforms the swing control of the excavator superstructure from traditional hydraulic drive to direct motor drive, significantly improving the accuracy and response speed of operation, while also improving the efficiency of the superstructure swing and reducing energy consumption and maintenance costs.

[0009] Preferably, the electronic control component includes a vehicle control electronic device, which is connected to a motor control electronic device via a cable. The motor control electronic device is connected to a battery and a drive motor via a cable. The vehicle control electronic device analyzes the oil pressure status in real time based on the electrical signals transmitted by the sensors, thereby determining the driver's operating intention and the demand for the upper structure to swing, and makes control decisions. Subsequently, it transmits the processed control commands to the motor control electronic device via the cable. The motor control electronic device adjusts the speed, torque, and power parameters of the drive motor according to the commands of the vehicle control electronic device.

[0010] Preferably, the sensor includes a left-swing hydraulic pressure sensor and a right-swing hydraulic pressure sensor. The left-swing hydraulic pressure sensor is connected to the hydraulic pump via an oil pipe, and the right-swing hydraulic pressure sensor is connected to the hydraulic pump via an oil pipe. By setting the left-swing and right-swing hydraulic pressure sensors, the flow direction and flow rate changes of hydraulic oil in the oil pipe can be monitored in real time.

[0011] Preferably, the left-hand hydraulic pressure sensor is connected to the vehicle control electronic equipment via a cable, and the right-hand hydraulic pressure sensor is connected to the vehicle control electronic equipment via a cable. When the left-hand and right-hand hydraulic pressure sensors sense changes in the flow direction and flow rate of hydraulic oil in the oil pipe, they convert these hydraulic pressure signals into electrical signals and transmit them to the vehicle control electronic equipment via cables to achieve subsequent direct drive of the motor.

[0012] Preferably, an insulator is fixedly installed inside the left-hand hydraulic pressure sensor, and a diaphragm is fixedly installed inside the insulator. A signal conversion circuit is fixedly installed on the diaphragm, and an operational amplifier is electrically connected to the end of the signal conversion circuit away from the diaphragm. The operational amplifier is connected to the vehicle control electronic equipment via a cable. When the diaphragm is subjected to the pressure of the hydraulic oil in the oil pipe, it will undergo a slight deformation, which will cause its resistance value to change. Subsequently, the signal conversion circuit will convert the pressure-related physical quantity change output by the diaphragm due to deformation into an electrical signal. Finally, the signal strength is increased by the operational amplifier so that it can be accurately identified and processed by the vehicle control electronic equipment.

[0013] Preferably, the left-swing hydraulic pressure sensor and the right-swing hydraulic pressure sensor have the same structural composition.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention proposes a superstructure swing system that controls the switching of the inlet and outlet channels of the hydraulic pump by swinging the control lever itself, thereby controlling the flow direction and flow rate of the hydraulic oil. This, in turn, controls the operating state and causes changes in the oil pressure in the oil pipe. The sensor can convert the pressure change signal into an electrical signal in real time and transmit it to the electronic control component via cable. This transforms the swing control of the excavator superstructure from traditional hydraulic drive to direct motor drive, significantly improving the accuracy and response speed of operation, while also increasing the efficiency of the superstructure swing and reducing energy consumption and maintenance costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall process of this utility model;

[0017] Figure 2 This is a schematic diagram of the sensor structure of this utility model.

[0018] In the diagram: 1. Hydraulic pump; 2. Hydraulic tank; 3. Sensor; 31. Left swing hydraulic pressure sensor; 311. Insulator; 312. Diaphragm; 313. Signal conversion circuit; 314. Operational amplifier; 32. Right swing hydraulic pressure sensor; 4. Swing control lever; 5. Vehicle control electronic equipment; 6. Motor control electronic equipment; 7. Battery; 8. Drive motor; 9. Oil pipe. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0021] Combination Figure 1A swing control system for the excavator's superstructure includes a hydraulic pump 1, which is connected to a hydraulic oil tank 2 via a replenishment pipe. The hydraulic pump 1 is also connected to a swing control lever 4 via an oil pipe 9. A sensor 3 is connected to the hydraulic pump 1 via the oil pipe 9, and the sensor 3 is connected to an electronic control component via a cable. The swing control lever 4 controls the switching of the inlet and outlet channels of the hydraulic pump 1, thereby controlling the flow direction and flow rate of the hydraulic oil. This, in turn, controls the operating state, causing changes in the oil pressure within the oil pipe 9. The sensor 3 can convert the pressure change signal into an electrical signal in real time and transmit it to the electronic control component via the cable. This transforms the swing control of the excavator's superstructure from traditional hydraulic drive to direct motor drive, significantly improving operational accuracy and response speed, while also increasing the efficiency of the superstructure swing and reducing energy consumption and maintenance costs.

[0022] Combination Figure 1 The electronic control components include vehicle control electronics 5, which is connected to motor control electronics 6 via cables. Motor control electronics 6 is connected to battery 7 and drive motor 8 via cables. Based on the electrical signals transmitted by sensor 3, vehicle control electronics 5 analyzes the oil pressure status in real time, thereby determining the driver's operating intention and the demand for upper body sway, and makes control decisions. Subsequently, it transmits the processed control commands to motor control electronics 6 via cables. Motor control electronics 6 adjusts the speed, torque, and power parameters of drive motor 8 according to the commands of vehicle control electronics 5.

[0023] Combination Figure 1 The sensor 3 includes a left swing hydraulic pressure sensor 31 and a right swing hydraulic pressure sensor 32. The left swing hydraulic pressure sensor 31 is connected to the hydraulic pump 1 through the oil pipe 9, and the right swing hydraulic pressure sensor 32 is connected to the hydraulic pump 1 through the oil pipe 9. By setting the left swing hydraulic pressure sensor 31 and the right swing hydraulic pressure sensor 32, the flow direction and flow rate of hydraulic oil in the oil pipe 9 can be monitored in real time.

[0024] Combination Figure 1 The left swing hydraulic pressure sensor 31 is connected to the vehicle control electronic device 5 via a cable, and the right swing hydraulic pressure sensor 32 is connected to the vehicle control electronic device 5 via a cable. When the left swing hydraulic pressure sensor 31 and the right swing hydraulic pressure sensor 32 sense the change in the flow direction and flow rate of hydraulic oil in the oil pipe 9, they convert these hydraulic pressure signals into electrical signals and transmit them to the vehicle control electronic device 5 via cables to realize the subsequent direct drive of the motor.

[0025] Combination Figure 2An insulator 311 is fixedly installed inside the left-hand hydraulic pressure sensor 31. A diaphragm 312 is fixedly installed inside the insulator 311. A signal conversion circuit 313 is fixedly installed on the diaphragm 312. An operational amplifier 314 is electrically connected to the end of the signal conversion circuit 313 away from the diaphragm 312. The operational amplifier 314 is connected to the vehicle control electronic equipment 5 via a cable. When the diaphragm 31 is subjected to the pressure of the hydraulic oil in the oil pipe 9, it will undergo a slight deformation, which will cause its resistance value to change. Subsequently, the signal conversion circuit 34 will convert the pressure-related physical quantity change output by the diaphragm 31 due to deformation into an electrical signal. Finally, the signal strength is increased by the operational amplifier 33 so that it can be accurately identified and processed by the vehicle control electronic equipment 5.

[0026] Combination Figure 1 The left swing oil pressure sensor 31 and the right swing oil pressure sensor 32 have the same structure.

[0027] The specific working process and principle of this utility model are as follows: First, when the diaphragm 31 is subjected to the pressure of the hydraulic oil in the oil pipe 9, it will undergo a slight deformation, resulting in a change in its resistance value. Subsequently, the signal conversion circuit 34 converts the pressure-related physical quantity change output by the diaphragm 31 due to deformation into an electrical signal. Finally, the signal strength is increased by the operational amplifier 33 and transmitted to the vehicle control electronic device 5. The vehicle control electronic device 5 analyzes the oil pressure status in real time based on the transmitted electrical signal, thereby judging the driver's operating intention and the swing requirement of the superstructure, and making control decisions. Then, the processed control command is transmitted to the motor control electronic device 6 through the cable. The motor control electronic device 6 adjusts the speed, torque and power parameters of the drive motor 8 according to the command of the vehicle control electronic device 5, thereby realizing the swing control of the excavator superstructure from traditional hydraulic drive to direct motor drive, which greatly improves the accuracy and response speed of operation, while improving the efficiency of superstructure swing and reducing energy consumption and maintenance costs.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A swing system for an upper structure, comprising a hydraulic pump (1), characterized in that: The hydraulic sub-pump (1) is connected to the hydraulic oil tank (2) through the oil replenishment pipe. The hydraulic sub-pump (1) is connected to the swing control rod (4) through the oil pipe (9). The hydraulic sub-pump (1) is connected to the sensor (3) through the oil pipe (9). The sensor (3) is connected to the electronic control component through the cable.

2. The upper garment swing system according to claim 1, characterized in that: The electronic control components include a vehicle control electronic device (5), which is connected to a motor control electronic device (6) via a cable. The motor control electronic device (6) is connected to a battery (7) and a drive motor (8) via a cable.

3. The upper garment swing system according to claim 1, characterized in that: The sensor (3) includes a left swing oil pressure sensor (31) and a right swing oil pressure sensor (32). The left swing oil pressure sensor (31) is connected to the hydraulic pump (1) through an oil pipe (9), and the right swing oil pressure sensor (32) is connected to the hydraulic pump (1) through an oil pipe (9).

4. The upper garment swing system according to claim 3, characterized in that: The left swing hydraulic pressure sensor (31) is connected to the vehicle control electronic device (5) via a cable, and the right swing hydraulic pressure sensor (32) is connected to the vehicle control electronic device (5) via a cable.

5. The upper garment swing system according to claim 4, characterized in that: An insulator (311) is fixedly installed inside the left-hand oil pressure sensor (31). A diaphragm (312) is fixedly installed inside the insulator (311). A signal conversion circuit (313) is fixedly installed on the diaphragm (312). An operational amplifier (314) is electrically connected to the end of the signal conversion circuit (313) away from the diaphragm (312). The operational amplifier (314) is connected to the vehicle control electronic equipment (5) via a cable.

6. The upper garment swing system according to claim 5, characterized in that: The left-swinging hydraulic pressure sensor (31) and the right-swinging hydraulic pressure sensor (32) have the same structure.

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