The basic structure and working principle of Rexroth relief valves

1. Hydraulic pump: Straight shaft swash plate piston pumps are divided into two types: pressure oil supply type and self-priming oil type. Most of the pressure oil supply hydraulic pumps use oil tanks with air pressure, and there are also hydraulic pumps with oil replenishment sub-pumps to provide pressure oil to the oil inlet of the hydraulic pump. The self-priming oil energy of the self-priming hydraulic pump ...

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、 ...

On March 4th, as a well-known intelligent packaging exhibition in Asia, China International Packaging Industry Exhibition Guangzhou was grandly opened. As the world's leading supplier of complete automation systems, Bosch Rexroth offers a high level of automation and electrical control and linear drive technology.

1) The pressure and speed can be adjusted infinitely, and the impact phenomenon of the constant on/off valve is avoided. 2) It can realize remote control and program control. 3) Compared with intermittent control, the system is simplified and the components are greatly reduced. 4) Compared with hydraulic proportional valves ...

Power condition 1) According to the type of power supply, AC and DC solenoid valves are selected respectively. In general, AC power is easily accessible; 2) AC220V.DC24V is preferred for voltage specifications; 3) The power supply voltage fluctuation is usually +%10%.-15% AC, and the power supply voltage fluctuation is usually +%10%.-15%.

1. First, adjust the pressure adjusting screw of the relief valve to the loosest state, adjust the minimum flow limiter to the minimum state (the adjusting screw of the hydraulic cylinder in the upper part is adjusted to the loosest state), adjust the adjusting screw of the flow control valve to the tightest state, and connect a flowmeter in series after the relief valve; 2. Start-up fluid ...

1. The flow direction of the medium should be consistent with the direction of the arrow of the valve body; 2. The differential pressure balance valve should be installed on the return pipe, the valve is connected to the guide pipe, and the other end of the pressure guide pipe is connected with the water supply pipe, and it is recommended to install a 1/2" ball valve at the water supply end of the pressure guide pipe in order to start the function of eliminating blockage; 3、 ...

The classification of proportional valve control mode refers to the classification of the electrical-mechanical conversion mode in the pilot control valve of the proportional valve, and its electrical control part has various forms such as proportional solenoids, torque motors, DC servo motors, etc. (1) Electromagnetic type Electromagnetic type refers to the use of proportional electromagnets.

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.

Rexroth solenoid valves consist of solenoid coils and magnetic cores, which are valve bodies with one or more holes. When the coil is energized or de-energized, the operation of the core causes the fluid to pass through the valve body or be cut off, changing the direction of the fluid. Electromagnetic components are composed of fixed cores, moving cores, coils and other components; ...

In modern construction machinery, basically inseparable from hydraulic working devices, even if the main working devices do not use hydraulic equipment, usually need hydraulic systems to achieve some auxiliary work, hydraulic pressure is so important, and our life and work is very close. Image But...

1. The resistance of the pump output pipeline is large Maintenance method: 1. Whether the placement of the output pipeline is accurate, the pipe diameter should not be too small, and the turning angle of the pipeline should be too much 2. Check whether the valve is sensitive 3. Properly open the outlet valve until the working condition point Second, the water and gas in the oil ...

1. Guiding ideology: 1. The pressure depends on the load oil pump, and the output pressure is inversely proportional to the flow rate. In the state of electronic control, when the external load increases, the system pressure increases, when the system pressure increases, the pressure of the front pump oil flow and the rear pump oil flow into the rear pump increases, and the computer detects the ...

The expanded Bosch Rexroth Cartesian coordinate system subsystem opens up new areas of application Predefined linear robots are suitable for a wide range of work areas and load ranges ctrlX AUTOMATION is used as a shared automation platform Optional pre-installed software for faster commissioning and programming ...

1. Aging of circuit board components: The components in the Rexroth servo motor circuit board may have problems such as aging and damage as the use time increases, resulting in the circuit board not working normally. 2. Poor circuit board contact: Rexroth servo motor circuit board is connected with other equipment.

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 ...

A10VSO series: A10VSO18, A10VSO28, A10VSO45, A10VSO71, A10VSO100, A10VSO140 A10VO series: A10VO28, A10VO45, A10VO71, A10VO100, A10VO140 A2F series: A2F10, A2F12, A2F28, A2F45, A2F...

When Rexroth hydraulic pump motor has air, how do we correctly eliminate it so that the pump is not damaged, and then share with you the correct exhaust method: (1) The oil has a certain compressibility, resulting in noise, vibration and crawling of moving parts in the system.

1. Conduct regular testing and diagnosis of Rexroth piston pumps According to the collected fault signal, draw the online working performance curve of Rexroth piston pump and make an evaluation report. Based on the results of the monitoring, it is decided whether to repair the Rexroth piston pump. Thus determining the most ...

Common Failure Analysis: 1) Overcurrent fault: Overcurrent fault can be divided into acceleration, deceleration, and constant speed overcurrent. It may be caused by the acceleration and deceleration time of the inverter is too short, the load is abruptly changed, the load is unevenly distributed, and the output is short-circuited. At this time, it is generally possible to extend the addition and subtraction ...