CN-122024551-A - Teaching training platform for hydraulic braking system of fan

Abstract

The invention discloses a teaching and practical training platform for a hydraulic braking system of a fan, comprises a pitch system, a main shaft speed changing system, a yaw system, a control system and a hydraulic braking system. The hydraulic braking system provides braking power for the high-speed shaft and the yaw system and comprises an oil tank, a manual pump, a main valve group, a yaw braking valve group and a high-speed shaft braking valve group, wherein the main valve group is respectively communicated with the two braking valve groups through pipelines, and the corresponding braking actions are independently controlled. The control system is electrically connected with the systems, simulated wind speed and wind direction parameters are set through a touch screen man-machine interface, and manual or automatic modes are switched, so that coordinated control of the whole machine operation state is realized. The platform truly restores the wind power hydraulic braking structure and the control logic, is convenient for developing the teaching and practical training of the hydraulic system principle, fault diagnosis and complete machine cooperative control, and has the advantages of clear structure, safe operation and high functional integration level.

Inventors

• MA WENFENG
• YAN DESHENG
• WANG PINGJUN
• GAO XIANGQIAN
• CHEN JUNFENG
• WEI JINGTAO

Assignees

• 河南盛世恒信科技有限公司

Dates

Publication Date

20260512

Application Date

20260209

Claims (6)

1. 1. The teaching training platform for the hydraulic braking system of the fan comprises a variable pitch system, a main shaft speed changing system, a yaw system and a control system, and is characterized by further comprising a hydraulic braking system, wherein the hydraulic braking system provides braking power for a high-speed shaft of the main shaft speed changing system and the yaw system; The control system is electrically connected with the pitch system, the spindle speed changing system, the yaw system and the hydraulic braking system and is used for receiving operation instructions and cooperatively controlling the operation of the systems, and the control system comprises a touch screen man-machine interface and is used for setting parameters of simulated wind speed and wind direction and switching manual or automatic control modes.
2. 2. The teaching and practical training platform for a hydraulic brake system of a fan according to claim 1, wherein in the hydraulic brake system, the yaw brake valve group is provided with an overflow valve for setting the working pressure in a yaw half brake mode.
3. 3. The teaching and practical training platform for a hydraulic brake system of a fan according to claim 1, wherein the high-speed shaft brake valve group is provided with a pressure relay for monitoring a brake pressure and transmitting a signal to a control system when a set value is reached.
4. 4. The teaching and practical training platform for the hydraulic braking system of the fan according to claim 1, wherein the main valve group, the yaw braking valve group and the high-speed shaft braking valve group are connected through a high-pressure hose or a hard pipeline.
5. 5. The teaching and practical training platform for the hydraulic braking system of the fan according to claim 1, further comprising a cooling device, wherein the cooling device is connected with the oil tank and is used for circularly cooling oil in the hydraulic system and preventing the system performance from being influenced by the overhigh oil temperature.
6. 6. A teaching and practical training platform for a hydraulic brake system of a blower according to claim 1, characterized in that the oil tank is equipped with an oil level gauge and a temperature sensor for monitoring the oil quantity and the oil temperature in the oil tank in real time and giving an alarm signal in case of abnormality.

Description

Teaching training platform for hydraulic braking system of fan Technical Field The utility model relates to a practical training equipment technical field specifically is a practical training platform for fan hydraulic braking system teaching. Background In wind power generation technology teaching and practical training, the hydraulic braking system is used as a key subsystem for guaranteeing safe shutdown and yaw positioning of the fan, and the structural principle and control logic of the hydraulic braking system have important teaching values. However, the existing fan teaching equipment generally has the problems of heavy electricity and light hydraulic pressure, and most practical training platforms adopt an electromagnetic braking or simplified mechanical locking mode to replace real hydraulic braking, so that core elements such as a high-pressure oil circuit, valve group control, pressure maintaining of an energy accumulator and the like in practical wind power equipment cannot be embodied. Although a hydraulic module is introduced into part of the device, the device is only used as an isolated demonstration unit, and is not in functional linkage with systems such as pitch, yaw and main transmission, so that a cooperative response mechanism of hydraulic braking of the fan under different working conditions (such as emergency stop, yaw versus wind and maintenance locking) is difficult to be displayed. In addition, the lack of an operable man-machine interaction interface can not trigger a real braking logic through setting parameters such as wind speed, wind direction and the like, so that the effect of the hydraulic system in the whole machine control is understood on one side. Therefore, a teaching practical training platform which integrates a real hydraulic braking loop and can operate in linkage with other core systems of a fan is needed to meet the demands of wind power professions on the practical capability culture of hydraulic technology. Novel content The utility model aims at providing a be used for real standard platform of fan hydraulic braking system teaching solves the problem that proposes among the prior art, and this platform truly restores wind-powered electricity generation hydraulic braking structure and control logic, is convenient for develop hydraulic system principle, fault diagnosis and complete machine cooperative control's teaching and practical standard, has that the structure is clear, operation safety, function integrated level are high advantage. The technical scheme is that the training platform for teaching of the hydraulic braking system of the fan comprises a pitch system, a main shaft speed changing system, a yaw system, a control system and a hydraulic braking system, wherein the hydraulic braking system provides braking power for a high-speed shaft of the main shaft speed changing system and the yaw system; The control system is electrically connected with the pitch system, the spindle speed changing system, the yaw system and the hydraulic braking system and is used for receiving operation instructions and cooperatively controlling the operation of the systems, and the control system comprises a touch screen man-machine interface and is used for setting parameters of simulated wind speed and wind direction and switching manual or automatic control modes. Preferably, in the hydraulic brake system, the yaw brake valve group is provided with a relief valve for setting an operating pressure in a yaw half brake mode. Preferably, the high-speed shaft brake valve group is provided with a pressure relay for monitoring the brake pressure and sending a signal to the control system when the set value is reached. Preferably, the main valve group, the yaw brake valve group and the high-speed shaft brake valve group are connected through a high-pressure hose or a hard pipeline. Preferably, the system further comprises a cooling device, wherein the cooling device is connected with the oil tank and is used for circularly cooling oil in the hydraulic system and preventing the system performance from being influenced by the too high oil temperature. Preferably, the tank is equipped with an oil level gauge and a temperature sensor for monitoring the quantity of oil and the temperature of the oil in the tank in real time and emitting an alarm signal in the event of an abnormality. The pitch control system comprises a main shaft speed changing system, a pitch control system and a speed control system, wherein the pitch control system is arranged at the front end of the main shaft speed changing system and is used for simulating pitch angle adjustment of blades of a wind driven generator, the pitch control system comprises a hub, at least one pitch control blade mechanism and a hemispherical protection cover, the pitch control blade mechanism comprises a servo motor, a planetary reducer, an internal tooth type slewing bearing, a gear and blades, the servo motor drives the planetary