What are the spare parts needed for brushless motor motor automatic no-load tester and how to set up the guarantee stock?
The spare parts of brushless motor motor automatic no-load tester mainly involves electrical, mechanical and software, etc. The following are the common spare parts and how to set up the protection stock:
I. Common spare parts
1、Electrical
Various types of sensors: such as current sensors, voltage sensors, speed sensors, etc., these sensors in long-term use may be reduced accuracy, damage and other problems, need to be replaced in a timely manner to ensure the accuracy of the test data.
Relays and contactors: they are important components in the control circuit, frequent on and off operations may lead to contact wear, sticking and other faults, with a certain number of relays and contactors can be quickly replaced when the failure occurs, to restore the normal operation of the test machine.
Power supply module: the power supply module of the tester may fail due to overload, overheating, etc. The spare power supply module can ensure that when the original power supply module is damaged, the tester can continue to obtain a stable power supply.
Circuit boards and electronic components: including the main control board, drive boards and other circuit boards, as well as capacitors, resistors, chips and other electronic components, which may be damaged due to aging, static electricity and other reasons, the need to have the appropriate spare parts.
2、Mechanical
Transmission components: such as gears, chains, belts, etc., these components in the operation process will be affected by wear and tear transmission accuracy and efficiency, need to be replaced regularly.
Bearings: the bearings of the motor and transmission device in the tester may be worn out and rattling after a long time of operation, and the spare bearings can replace the damaged bearings in time to ensure the normal operation of the equipment.
Screws and nuts: Screws and nuts of various specifications are used to fix the mechanical parts of the tester, which may be lost or damaged in the process of equipment maintenance and repair, and need to have certain reserves.
3、Software category
System and software installation media: including the operating system installation disk of the tester, the installation package of the test software, etc., in order to reinstall the system when it crashes or the software has a serious failure.
Authorization key: If the test software requires an authorization key to run, the backup key should be properly kept in case the original key is lost or damaged.
II. Methods of safeguarding inventory settings
1、Based on historical data
Analyze the failure frequency: Review the number of failures and time intervals of each component of the test machine in the past period of time to determine which components are prone to failure and the average interval between failures. For components with high failure frequency, a relatively high guarantee inventory should be set.
Statistical repair time: to understand the time required from the discovery of the failure to repair the equipment after each failure, including the time to purchase spare parts. According to the average repair time and the tolerance of the downtime of the test machine, determine the amount of guaranteed stock to ensure that there are enough spare parts available during the repair period.
2. Consider the supply cycle
Supplier lead time: Communicate with suppliers of spare parts to understand their normal lead time and possible very long lead time. For parts with long lead times, you need to set a higher guaranteed inventory to prevent long downtime of the test machine due to untimely supply.
Market supply situation: pay attention to the market supply situation of spare parts, if some parts are scarce or unstable market supply, should be increased appropriately to protect the stock, in order to cope with possible supply shortages.
3, combined with the importance of equipment and frequency of use
Equipment criticality: If the tester is a key piece of equipment on the production line, downtime will have a significant impact on the entire production process, then a higher level of protection should be set to ensure that the equipment can be quickly repaired.
Frequency of use: for the frequent use of the test machine, the wear and tear of its components and the probability of failure is relatively high, you need to correspondingly increase the spare parts to protect the inventory.
In the actual setting of the guarantee stock, also need to consider the cost factors, to avoid excessive inventory backlog caused by the waste of funds. At the same time, it is necessary to establish a system of regular inspection and updating of the guaranteed inventory, and adjust the quantity and type of the guaranteed inventory in a timely manner according to the actual use and operational status of the equipment.
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