Common faults and solutions of Rexroth piston pumps

1. Quantitative pump + relief valve system This is the most basic and low-cost hydraulic pump system, because the displacement of the pump is fixed, and the output flow is fixed under the condition that the speed of the prime mover is unchanged; A part of the flow drives the load, and the excess flow is returned to the tank through the relief valve, and the overflow ...

There are 3 precautions when installing a hydraulic pump in the hydraulic system: 1. The coaxiality deviation between the hydraulic pump drive shaft and the motor drive shaft is less than that, and the flexible coupling joint is generally used, and the V-belt is not allowed to directly drive the pump shaft to rotate, and the pump shaft is subjected to excessive radial force, which affects the normal operation of the pump; 2 ...

1. It is necessary to avoid the retention of dirt and debris into the pressure reducing valve pressure reduction guarantee system. The pipe network of the pressure reduction system of the new or renovated project is likely to leave sand, hemp silk and debris. Before putting into operation, water flushing should generally be carried out, and after meeting the cleaning requirements, the pressure reducing valve and filter element should be finally installed.

Classification and structural characteristics of Rexroth gear pumps 　　According to the form of gear meshing, it can be divided into external meshing and internal meshing. According to the different tooth curves, it can be divided into: involute and cycloid. According to the surface form, it can be divided into spur gear type, helical gear type, herringbone gear ...

It's hard to imagine a factory automation system without linear robots. The application of linear robots involves handling incoming materials during product production, assembly or packaging, whether integrated into a single machine as a pick-and-place unit or integrated into a semi-automatic or fully automated production line. However...

Debugging considerations exhaust All PV7 vane pumps are self-priming. Prior to commissioning, the pump must be emptied to prevent damage to the internal components. When commissioning, it is advisable to fill the housing through a leak port. Pay attention to the filter accuracy class! This will improve the operation ...

1. It plays the role of pressure stabilization and overflow (the valve port is normally open) In the fixed pump oil inlet or return oil throttling speed control system 2. Safety protection function (valve port normally closed) Variable pump hydraulic system, fixed pump bypass throttling speed regulation system and non-throttling speed regulation system. 3. The effect of anti-load 4、 ...

1. Frequent grease, the electric oil drum pump is running at high speed, and the grease is easy to volatilize, so it is necessary to keep the lubrication at the bearing clean and pay attention to the replacement. 2. Pay attention to the storage of the electric pumping pump should be placed in a dry, clean and no corrosive gas environment. 3. Gear oil ...

During the meshing process of the gear pump, the number of gear pairs meshed at the same time should be more than one pair, that is, the overlap coefficient ε should be greater than 1 (ε=1.4) to work normally. The oil left between the teeth is trapped in an enclosed space formed by two pairs of teeth meshing at the same time, and the volume of this space will be ...

1. The speed and pressure of the pump should not exceed the specified value, and long-term use should be avoided, otherwise the life of the hydraulic pump will be affected. 2. When the hydraulic pump is started, it should be jogged several times, and after the oil flow direction and sound are normal, it should run under low pressure for 5-10min, and then put into normal operation. ...

1. The position of the four "flow and pressure limit control" potentiometers on the CPU unit of the computer. 2. The preset parameters adjust the four-stage injection speed to 50 and the pillow pressure to 00 3. Start the oil pump motor, and when the temperature of the sol barrel reaches the sol temperature, press the manual injection button to make the screw ...

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1. The output flow of the hydraulic pump is insufficient or does not output oil Piston pumps often suffer from insufficient suction, excessive leakage, or too small an inclination angle. The insufficient suction volume is mainly caused by the high resistance of the suction pipe or the insufficient oil replenishment, such as the pump speed is too fast and the oil level is too low; Excessive leakage ...

The automotive industry expects more support from suppliers in quality assurance for assembly work. As a result, suppliers in the automotive industry are looking to automation partners to better meet this technology demand while delivering faster. Mechanical engineering companies need more applications in standard tasks ...

The hydraulic motor is fixedly connected to the housing, and the oil propulsion rotor entering from the port rotates around a central point. This slow-rotating rotor drives the output through a splined shaft called a cycloidal hydraulic motor. After the advent of this early cycloid motor, through decades of evolution, another concept of horse ...

1. Select the solenoid valve according to the pipeline parameters: the diameter specification (i.e., DN) and the interface mode 1) determine the diameter (DN) size according to the on-site pipeline inner diameter size or flow requirements; 2) Interface mode, generally > DN50 to choose the flange interface, ≤ DN50 can be freely selected according to the user's needs. ...

1. Direct-acting solenoid valve Principle: When the normally closed type is energized, the electromagnetic coil generates electromagnetic force to lift the open part from the valve seat and open the valve; When the power is off, the electromagnetic force disappears, the spring presses the opening on the valve seat, and the valve is open. Features: In vacuum, negative pressure, zero pressure ...

1. When the hydraulic pump is started, it should be jogged several times, and after the oil flow direction and sound are normal, it should run under low pressure for 5-10min, and then put into normal operation. Before the piston pump is started, the pump must be filled with clean working oil through the oil drain port on the casing. 2. The viscosity of the oil is affected by the temperature ...

Technical Parameters: 1) Select the valve port and model according to the requirements of the medium flow direction and the pipeline connection mode; 2) According to the flow rate and valve Kv value to select the nominal diameter, can also choose the same pipe inner diameter; 3) Working Differential Pressure: Low working differential pressure above 0.04Mpa is optional.

1. Constant pressure overflow: In the throttling adjustment system of the quantitative pump, the fixed pump provides a constant flow rate. 2. When the system pressure increases, the flow demand decreases. 3. At this time, the safety valve is opened, so that the excess flow is returned to the oil tank to ensure the inlet pressure of the safety valve.