XUZHOU FOCUS INDUSTRY GROUP CO., LTD.
news
Products

Liugong Loader Parts 2

Working Principle Of Walking Motor Of Liugong Loader Parts


Many Liugong loader parts have different working principles. High-speed motor and planetary reducer or cycloid gear reducer are commonly used in walking motors, while the control of the loop of hydraulic motor has its characteristics.

The motor is equipped with high voltage automatic variable device. When the high-speed gear is hung up, the circuit connects the manual transmission oil inlet to drive the transmission valve to move left, so that the motor becomes small displacement. If driving resistance increases and the oil pressure rises to the set value, the oil pushes the transmission valve to the right and the motor automatically turns into a large displacement low-speed gear to increase torque. Therefore, this kind of motor can automatically shift gears with the change of walking resistance.

In addition, the control of the motor is mainly completed by the motor control valve, and the working principle is analyzed in combination with the structure schematic below. Suppose oil enters from inlet A and the motor rotates, the operations of motor control valves are as follows:

1.Open the check valve and the hydraulic oil enters the right chamber of the motor.

2.The hydraulic oil enters the balance valve through the throttling hole and moves it to the left, connecting the brake oil circuit and releasing the brake. This action also connects the return oil circuit of motor port B.

3.The hydraulic oil enters the buffer piston chamber through the middle throttling hole of the safety valve and pushes the buffer piston to the left. If the system pressure exceeds the set pressure of the relief valve (10.2mpa) at this time, the safety valve will be opened instantly, acting as a buffer.

4.If the motor is overspeed (e.g., downhill) and the pump has no time to supply oil, the pressure of port A will be reduced. The balance valve moves to the right under the action of spring force and closes the return oil channel of the motor to limit the motor speed.
Related News
  • Shantui Was Awarded Top Ten Supporting Technology Innovation Brand Award

    Shantui Was Awarded Top Ten Supporting Technology Innovation Brand Award

    July 6, 2018Recently, Shantui Crawler's Products won the "Top Ten Supporting Technology Innovation Brand Award" by the China Construction Machinery Industry Association and the China Construction Machinery Indust...view
  • Weichai Parts 2

    Weichai Parts 2

    August 21, 2018A diesel engine is an engine that burns diesel to obtain energy release. It was invented in 1892 by the German inventor Rudolf Diesel.To commemorate the inventor, diesel is represented by his surname ...view
  • Bulldozer Pioneer - SD7K HBXG Bulldozer, A New Benchmark Bulldozer Field!

    Bulldozer Pioneer - SD7K HBXG Bulldozer, A New Benchmark Bulldozer Field!

    July 6, 2018As a veteran enterprise of Chinese bulldozer R&D and manufacturing, Hegang Group Xuangong Company (formerly known as Hebei Xuangong) has deep research and development and manufacturing heritage.Ac...view
  • XGMA XG32-III WHEEL LOADER PARTS --Oil Pump To Georgia

    XGMA XG32-III WHEEL LOADER PARTS --Oil Pump To Georgia

    December 28, 2017This weekend, we sold many kinds of bearings for XGMA 932-III wheel loader to our old Georgia Clients.view
  • KOMATSU PC220-7 EXCAVATOR PARTS --THE BUCKET

    KOMATSU PC220-7 EXCAVATOR PARTS --THE BUCKET

    December 28, 2017This weekend, we sold one Bucket and bucket parts for Komatsu PC220-7 excavator to Oman Clients.Because we are 7 years supplier of machinery and spare parts,we have the brother factory of all kinds sp...view
  • Buy Wheel loader 1

    Buy Wheel loader 1

    August 21, 2018Precautions for purchasing wheel loader tiresHow to properly purchase wheel loader tires? The country has special standards that stipulate the specifications and scope of use of construction machinery...view
  • TEL:+8615862203425
  • FAX:+86-516-83895529
  • EMAIL:info@cnfocusgroup.com
  • ADDRESS:F13, Building A, Greenland Yinghai, Qingfeng Road, Xuzhou City, Jiangsu Province, China (Mainland)