Common failures of Rexroth vane pumps

Volumetric efficiency (actual discharge/theoretical discharge) rotates at low speed, and internal leakage increases when used at high pressure, and efficiency decreases. Solid shaft dynamics (theoretical shaft dynamics/mechanical efficiency): number of rotations, increased pressure, increased mechanical efficiency. Real discharge (volumetric efficiency), real axis power and number of rotations ...

1) Preparation for cleaning. (1) Preparation of cleaning oil. The cleaning oil can be selected as Rexroth Rexroth hydraulic pump hydraulic system working oil or test oil for the machine to be cleaned. It is not allowed to use kerosene, gasoline, alcohol or steam as the cleaning medium, so as not to corrode the hydraulic components, pipelines ...

1. First of all, adjust the pressure adjustment screw of the Rexroth variable hydraulic pump relief valve to the loosest state, the minimum flow limiter to the minimum state (the upper hydraulic cylinder adjusting screw is adjusted to the loosest state), the flow control valve adjustment screw is adjusted to the tightest state, and connect a flow rate in series after the flow valve.

First, the characteristics of the solenoid valve: 1) Rexroth solenoid valve, solenoid valve and all stainless steel; For highly corrosive media, the diaphragm type must be selected. Neutral medium, it is also advisable to choose copper alloy as the solenoid valve housing material, otherwise, there are often rust chips falling off in the valve housing, especially the action is infrequent ...

1: Disassemble the proportional valve Unscrew the nut and slide out of the coil to remove the coil from the proportional end. Use a wrench to loosen and remove the tube. Remove the spring and slide the hex wrench from the tube. Then remove the spool from the valve. 2: Check the fatigue of all individual parts of the proportional valve, grinding ...

Rexroth solenoid valves are composed of solenoid coils and magnetic cores, and are valve bodies containing one or several holes. When the coil is energized or de-energized, the operation of the core will cause the fluid to pass through the valve body or be cut off to change the direction of the fluid. The solenoid parts of the solenoid valve are composed of a fixed core, a moving core...

A new reference process for gluing tasks has been added to the LinSelect configurator Just enter a few parameters to get specific product recommendations Complete subsystems for handling and gluing tasks 　　Thanks to the intelligent reference process in the LinSelect selection software, 　　 ...

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 ...

Rexroth piston pump failure manifests itself as follows. The causes and elimination methods of excessive working noise of piston pumps. There is air in the oil pump. This failure usually occurs when a new pump is installed. When opening a new pump, oil should be added to the pump first to lubricate the pump's bearings, plungers, and cylinders. ...

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. The installation of the piston pump needs special attention, the direction should not be mistaken, and the direction of the oil filler port should be upward, so that it is more convenient to use in the later stage. And it is necessary to use flexible couplings, which can better avoid any stress generated during the bending process, but the axial error needs to be 0 ...

1. Rexroth relief valve Overflow, pressure stabilizer, which is used to regulate and maintain the oil supply pressure of the pump while overflowing the excess oil in the system. When the regulated pressure is reached, the hydraulic system is controlled to keep it in a constant state. Relief valves for overload protection are called safety valves. ...

1. The power domain (working limit) of the proportional valve For direct-acting electro-hydraulic proportional throttle valves, since the hydraulic force acting on the valve core is proportional to the flow rate and flow rate (pressure) through the valve port, when the working condition of the electro-hydraulic proportional throttle valve exceeds the product of its pressure drop and flow rate, that is, the power meter...

Causes of failure: (1) The oil level of the hydraulic oil tank is too low; Exclusion method: Add hydraulic oil Causes of failure: (2) Hydraulic oil is not used according to the season; Exclusion method: Usually suitable for 46# hydraulic oil (or 68#) without special replacement, consider using 32 ...

1) Coil problem Use a voltmeter to measure the voltage across the coil. This should help you determine if the coil is working properly. You can also gently pull the coil to feel if there is a magnetic force acting on it. If it proves difficult to pull, the coil generates a magnetic field, which creates an excitation.

1. In the mining and metallurgical industry, the pump is also the most used equipment. Mines need to be drained by pumps, and in the process of beneficiation, smelting and rolling, pumps are needed to supply water first. 2. In the power sector, nuclear power plants need nuclear main pumps, secondary pumps, tertiary pumps, thermal power plants need a large number of boilers ...

1) Swash plate axial piston variable pump, used for open hydraulic rotation back 2) Mainly used in the field of mobile machinery 3) The pump works under the condition of self-priming, mailbox pressurization or with built-in suction pump, (centrifugal pump). 4) The output flow rate is proportional to the driving speed, and ...

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...

1. There are two oil inlets and one oil return port for the pressure reducing valve and one-way pressure reduction connected by threads and flanges, and one oil inlet and one oil return port for one-way pressure reduction and one-way pressure reduction connected by plate connection. During installation, attention must be paid to connect the oil drain port directly back to the Rexroth hydraulic pump oil tank, and keep the oil drain circuit unblocked.

1. According to the layout of the device, terrain conditions, water level conditions, and operating conditions, determine the selection of horizontal, vertical and other types (pipeline, submersible, submersible, non-clogging, self-priming, gear, etc.) gear pumps. 2. According to the nature of the liquid medium, determine the water gear ...