(1) Insufficient inhalation
The reason is that the resistance in the suction line of the Rexroth piston pump is too high or the oil replenishment is insufficient. For example, the speed of the pump is too large, the liquid level in the oil tank is too low, the oil inlet pipe is leaking, and the oil filter is blocked.
(2) The amount of leakage is too large
The reason is that the gap of the Rexroth piston pump is too large and the seal is poor. If the oil distribution pan is scratched by metal fragments, iron filings, etc., and the end face leaks; The sealing surface of the check valve in the variable mechanism is not well matched, and the supporting surface of the pump body and the oil distribution pan has sand holes or grinding marks. The damaged part of the Rexroth hydraulic pump can be identified by inspecting the foreign matter mixed in the hydraulic oil in the Rexroth hydraulic pump.
(3) The inclination angle of the inclined disc is too small
Rexroth hydraulic pumps have a small displacement, which requires adjusting the variable piston and increasing the swash plate inclination. The oil discharge is not zero at the median position, and the swash plate inclination angle of the variable axial piston pump is zero, which is called the median, and the output flow rate of the pump should be zero at this time.
However, sometimes the median deviates from the midpoint of the adjustment mechanism, and there is still a flow output at the midpoint. The reason for this is that the controller is misaligned, loose, or damaged and needs to be re-zeroed, tightened, or replaced. This phenomenon can also be caused by insufficient angle maintenance of Rexroth hydraulic pumps and wear of tilt angle trunnions.
|
More on that
|
Bosch Rexroth appeared at the 2020 Industry Fair
From September 15th to 19th, the 22nd China International Industry Fair was held as scheduled at the National Convention and Exhibition Center. Bosch Rexroth, a leading practitioner and supplier of Industry 4.0, presents 6.1 with the classical value stream of the factory of the future and the innovative automation platform ctrlXAUTOMATION with the theme of the future, using the present.
|
|
Rexroth Hydraulic Pumps - Introduction to the Classification of Proportional Valves
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.
|
|
Rexroth Hydraulic Pumps – Types of Hydraulic Pumps and Their Advantages and Disadvantages
There are three main types of hydraulic pumps: gear pumps, vane pumps and piston pumps.
1. Gear pump:
Advantages: small size, simple structure, less strict requirements for the cleanliness of the oil, and cheaper price;
Defects: However, the pump shaft is subject to unbalanced force, serious wear, and leakage.
|
|
Rexroth proportional valve repair and replacement steps
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 ...
|
|
The basic structure and working principle of Rexroth relief valves
1. Direct-acting relief valve
How it works:
The hydraulic force and the spring force are directly balanced to control the opening and closing action of the valve core, so as to ensure that the pressure of the oil inlet is basically constant.
Peculiarity:
(1) The hydraulic pressure of the valve core is balanced by the spring force, so when the system pressure is very high...
|
|
Areas of application for Rexroth hydraulic pumps
Rexroth hydraulic pumps have a wide variety of applications and are available in all walks of life. In terms of pump performance, there are two types of pumps: giant pumps and micro pumps. Giant pumps can reach flow rates of hundreds of thousands of cubic meters per hour, while micro pumps can reach less than tens of milliliters per hour. Judging by the pressure of the pump, it can be ...
|
|
Features of Rexroth hydraulic pumps:
1) The flow rate of the pump is proportional to the speed and displacement of the pump, and the swing angle of the swash plate can be adjusted steplessly
2) Coaxial structure, which can form a combined pump
3) Position-constrained backhaul structure
4) Spherical distribution, the plunger is arranged obliquely around the main axis
5) Stepless ...
|
|
How to select Rexroth solenoid valve and its selection points
1. Select the solenoid valve according to the pipeline parameters: diameter specification (i.e., DN) and interface mode
1. Determine the diameter (DN) size according to the inner diameter size or flow requirements of the on-site pipeline.
2. Interface mode, generally DN50 to choose flange interface, DN50 can be freely selected according to user needs...
|
|
Features of Rexroth gear pumps:
1. Constant displacement,
2. Low working noise
3. Low flow pulsation
4. Due to the sealing gap compensation, it has high efficiency even at low speed and low viscosity oil
5. It is suitable for a wide range of viscosity and speed
6. All model specifications and displacement gauges ...
|
|
Bosch Rexroth | No need for a control cabinet, a new solution for intralogistics
Less is more: Lean manufacturing is an important competitive factor for manufacturing companies. It's a question of how processes can be optimised so that they can act faster and more flexibly to increase economic efficiency, and the same applies to intralogistics. If the logistics are not properly organized, regardless of the production ...
|
|
Rexroth expands linear robots to help factory automation
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 ...
|
|
Rexroth hydraulic pump - how to use the piston pump
1. Preparation before starting: check the fastening of each component; Check the oil level of the oil tank, the height of the oil level is subject to the engraving line of the oil window on the oil tank, N46 in summer, N32 hydraulic oil in winter. High-pressure pumps and pumps above 140 should use the same type of anti-wear hydraulic oil. Check the pressure gauge range, liquid ...
|
|
How Rexroth hydraulic pumps are adjusted
How Rexroth hydraulic pumps are adjusted
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 ...
|
|
Bosch Rexroth wins the NED Innovation Award in the Material Handling and Packaging category
The MP1000R developed by Bosch Rexroth in cooperation with Geek+ won the Innovation Award in the Material Handling and Packaging category of the New Equipment Digest (NED). The award is made by NED readers to vote for the finalists based on the product information provided to determine the most innovative product in the category.
MP1 ...
|
|
How many ways are there to control the displacement of Rexroth variable piston pumps?
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 ...
|
|
Bosch Rexroth: a dual powerhouse in the field of copy cutting
For the field of profiling cutting, there is a growing demand to increase productivity and shorten set-up times and CNC interpolation time. The Bosch Rexroth MTX CNC system provides the perfect basis for machine builders and users to meet the growing challenges and at the same time comply with the requirements of the OPC UA standard for Industry 4.0 communication ...
|
|
Rexroth Hydraulic Pumps – Routine maintenance and troubleshooting of gear pumps
1. Daily maintenance
1) Strictly implement the post operation method and carefully fill in the operation records.
2) Check the bearing temperature and oil pressure regularly; Check the level height of the lubricating oil every shift.
3) Check whether there is leakage in the sealing part once per shift.
4) Do a good job in each shift ...
|
|
A test method for linear proportional control of CNC speed of Rexroth proportional valves
1. Remove the mold and cancel the express and trivial mold operation
2. Cancel the low-pressure trivia mold.
3. Close the safety door.
4. Adjust the CNC high-speed mold speed to the value of 0, and adjust the CNC high-speed mold opening speed and CNC low-speed mold opening speed to the value of 40.
5. Starter oil ...
|
|
Rexroth: Simple and fast to build an exclusive linear dispensing robot system
Simple and easy to use: The product selection is simple and easy, and the debugging can be completed under the guidance
Plug & Play: Pre-assembled subsystems, intuitive operating software
Rapid start-up: graphical sequencing, direct line integration
Partner: ViscoTec dispensing heads are integrated into the software
...
|
|
Rexroth Hydraulic Pump - Oil Lift Piston Pump Parts Replacement Fault Repair
The replacement specification of oil lift piston pump parts, when the various clearances listed are out of tolerance, can be corrected as follows:
1) If the cylinder body is inlaid with copper sleeve, it can be corrected by replacing the copper sleeve. First trim a set of plunger rods to a consistent size, and then polish the outer part with sandpaper of more than 1000#.
|
|
Contact
working hours
