摘要:
A method for automatically timely supplying a lubricant to a machine working section driven by a motor and an apparatus therefor. The quantity of increase of the driving current of a mold clamping servomotor (12) during the process in which a mold clamping mechanism (10) of an injection molding machine shifts from a proper lubrication state to an improper lubrication state is previously decided for each combination of the type of the injection molding machine, injection molding conditions, and the type of grease. While a normal injection molding cycle in the proper lubrication state is being executed, a reference value for the motor driving current is decided on the basis of the normal motor driving current in a specific moved position of a movable platen (14), at which the motor current is measured for the aforesaid decision, and the increase of the motor driving current, the reference value and the specific moved position of the movable platen being loaded into a memory of a numerical control device (50). In response to a grease supply timing command, the control device drives a grease pump (40) if the detected value of the motor current in the specific moved position of the movable platen is not smaller than the reference value. Grease from the grease pump is supplied to a predetermined quantity to each of a plurality of parts of the mold clamping mechanism through a distributor (43).
摘要:
A lubricant, a friction pair having the lubricant and a method for controlling COF between the friction pair are provided. The friction pair includes a first friction part (1) and a second friction part (2). Firstly a lubricant (4) is provided between the first and second friction parts (1, 2). Then a potential is applied on the first friction part (1) via the lubricant (4). And COF is controlled by controlling the potential. The lubricant (4) contains propylene carbonate and a surfactant.
摘要:
A lubrication monitoring system for monitoring the lubricative state of two relatively movable elements of a linear transmission device includes a contact resistance capturing device and a processing unit. The contact resistance capturing device for detecting the contact resistance between the two elements and converting it into a corresponding value. A maximum delay time and a threshold value are preset in the processing unit. A period of time during which the linear transmission device starts to run and then the corresponding value reaches the threshold value defines a delay time. If the specific value of the delay time to the maximum delay time is larger than or equal to a predetermined specific one, it will be judged that the lubrication needs resupply. Therefore, monitoring the lubricative state as the linear transmission device is accelerated can get correct lubricative state to enable correct lubrication resupply.
摘要:
A mechanical machine can include one or more kinematic linkages having kinematic joints that movably couple first and second rigid links and can include an automatic lubrication system to lubricate the kinematic joints. In an aspect, the automatic lubrication system is configured to monitor operational aspects of the machine such as machine operational data and geometric position and to dynamically determine timing and/or quantity of lubricant to direct and introduce to the kinematic joints.
摘要:
A lubricant, a friction pair having the lubricant and a method for controlling COF between the friction pair are provided. The friction pair includes a first friction part (1) and a second friction part (2). Firstly a lubricant (4) is provided between the first and second friction parts (1, 2). Then a potential is applied on the first friction part (1) via the lubricant (4). And COF is controlled by controlling the potential. The lubricant (4) contains propylene carbonate and a surfactant.
摘要:
An endless chain having a tension and a relaxed non-tension run, and a lubricant delivery control including friction responsive elements to sense the friction condition between the chain and a part of a supporting track and respond on increasing friction to dispense lubricant into the non-tension chain run which is carried to the friction sensing element to eventually reduce the friction and allow the sensor to cut-off lubricant supply.
摘要:
The invention relates to a system for dry lubricating equipment for a moving conveyor, said system comprising a dry lubrication unit or a treatment unit associated in a movable manner with the supporting system, without having to remove all the return supporting elements attached to the supporting system.
摘要:
An excavator includes at least one gyro sensor for sensing the incline of equipment; a swing motor for rotating an upper body of the excavator; a first pressure sensor for sensing an operating pressure value applied to the swing motor; a swing joystick for driving the swing motor; a second pressure sensor for sensing a manipulation value inputted into the swing joystick; and a controller, wherein the controller receives pieces of information sensed by the gym sensors, the first pressure sensor, and the second pressure sensor, and detects the operating pressure value of the swing motor, sensed through the first pressure sensor, so as to notify a worker of the time at which lubricating oil is added if a maximum manipulation value is inputted into the swing joystick for a minimum measuring time or more in a swing friction force measurement mode.
摘要:
A lubrication monitoring system for monitoring the lubricative state of two relatively movable elements of a linear transmission device includes a contact resistance capturing device and a processing unit. The contact resistance capturing device for detecting the contact resistance between the two elements and converting it into a corresponding value. A maximum delay time and a threshold value are preset in the processing unit. A period of time during which the linear transmission device starts to run and then the corresponding value reaches the threshold value defines a delay time. If the specific value of the delay time to the maximum delay time is larger than or equal to a predetermined specific one, it will be judged that the lubrication needs resupply. Therefore, monitoring the lubricative state as the linear transmission device is accelerated can get correct lubricative state to enable correct lubrication resupply.
摘要:
The present invention provides a control method of an automatic lubrication system of a variable-pitch bearing used for a wind turbine generator system (WTGS). The method comprises the following steps: calculating a current friction factor of the variable-pitch bearing using a current friction moment of the variable-pitch bearing of WTGS; determining a demand of lubrication grease according to the operation power of WTGS and the current friction factor of the variable-pitch bearing, wherein the friction factor of the variable-pitch bearing to be obtained is taken as an objective; customizing a lubrication control strategy according to the demand of lubrication grease, wherein a predetermined energy production of WTGS is taken as an objective; calculating lubrication target regions according to an average wind speed and a power of an wind turbine, the lubrication target regions being operation regions of the tooth surfaces of the variable-pitch bearing; meanwhile, calculating an angle difference between grease discharge points of a lubrication pinion and the lubrication target regions; moving the angle difference by an actuator of a variable-pitch system under the control of the main controller of the WTGS, and carrying out automatic lubrication according to the control strategy. The present invention has the advantage that good lubrication is realized for the variable-pitch bearing and variable-pitch tooth surfaces.