Hydraulic motor

At the end of 1850s, the original low speed and high torque hydraulic motor is developed by a fixed rotor part of the pump, which is composed of an inner gear ring and a matching gear or rotor. The inner gear ring and the casing is fixed to connect together, from the oil port into the oil to drive the rotor revolves around a central point. This slowly rotating rotor is driven by a spline shaft to become a hydraulic motor. After decades of evolution, the motor of the other concept began to form. The motor is mounted in the inner ring of the ring. The motor can provide a higher starting and running torque, the roller reduces friction, and thus improves the efficiency, even at a very low speed output shaft can produce a stable output. By changing the direction of the input and output flow, the motor is rapidly changing, and the value of the torque is generated in the two direction. Motor of each series has a variety of displacement, to meet the requirements of various speed and torque.

Advantage

Cycloid hydraulic motor is an axial flow rotor tooth pair type low speed high torque hydraulic motor, cycloidal hydraulic motor

Advantages are as follows:

1, small size, light weight, its shape size is much smaller than other types of hydraulic motor with the same torque.

2, the speed range is wide, can be stepless speed regulation, the minimum stable speed of 15 rpm, easy installation and layout, low investment cost.

3, in the hydraulic system can be used in series, can also be used in parallel.

4, the rotation inertia is small, easy to start under the load, the positive and reverse can be used, but not to stop when reversing. The use of the hydraulic motor is widely used in the rotary mechanism of agricultural, fishery, light industry, heavy transportation, mining, engineering machinery, etc..

Examples of foreign application of a hydraulic motor:

1 agricultural: all combine harvester, sowing machine, rotary cultivator, mower, sprayer, feed mixer ground drilling machine.

2: fishing net machine.

3 Light Industry: winding machine, textile machine, printing machine, washing machine.

4 construction industry: road roller, cement mixer, cleaning car.

Two, structure and performance characteristics

Cycloid hydraulic motor output shaft and valve is integrally molded, insert type fixed rotor cycloid hydraulic motor, specific structure shown in figure a, major functions and features:

By the end of 1 assignment and axial flow, simple and compact structure, high precision valve;

2 with a set of teeth set rotor, high mechanical efficiency, high pressure service life;

3 double angle ball bearing, can bear large radial and axial load, small friction, high mechanical efficiency.

4 advanced distribution mechanism design, has the characteristics of high precision and automatic wear compensation valve.

Allow 5 motor series and parallel use, when used in series connected leakage oil port.

6 the use of tapered roller bearing support design, with a large radial load capacity, so that the motor can directly drive the work mechanism.

7 many kinds of flange, output shaft, oil port, etc..

Three, running attention

(1) before the operation check the hydraulic system all the components are connected correctly, the oil is added to the specified height by the filter.

(2) starting at no-load condition 10~15 minutes, and the exhaust, the fuel tank in a bubble, the system has a noise, as well as the motor oil cylinder has a lag in the air.

(3) to exclude air, tank, then start the motor to gradually increase the load, until the maximum load to observe whether there is abnormal phenomenon, such as noise, oil rise and oil spills.

(4) by running 50 hours after the replacement of oil, the replacement of the maintenance rules.

(5) if not, please do not disassemble the motor failure.

Four, disassembly and assembly

Please note the following when Taylor James hydraulic motor fault needs to be disassembled:

(1) disassembly not to bruise the joint surface, such as scratches, need to be repaired before the assembly.

(2) prior to assembly with gasoline or kerosene wash all parts, prohibit the use of cotton or a rag scrub parts, the application of brush or silk, cut can not be soaked in gasoline rubber ring. Motor installed, installed before the need to two oil ports plus 50 to 100 ml of hydraulic oil, oil output rotation, such as no abnormal phenomenon can be installed.

(3) in order to ensure that the motor rotation direction is correct, the position of the rotor and the output shaft should be noted.

(4) the cover bolt must gradually tighten the fastening torque for the diagonal, 4~5 kg M.