Take Z355-1A as an example. "Z" represents a DC motor (product series code); "355" represents the center height of the motor in millimeters; the digit "1" after the hyphen represents the code for the distance between the base foot holes (B dimension), and the lengths from short to long are represented by the numbers 1, 2, 3...; "A" represents the motor category code, where the letters "A" and "B" represent the first and second types of motors respectively.
The Z series medium-sized DC motors with a center height of 355 - 710mm are newly developed medium-sized DC motor varieties by our factory after the completion of the development of the Z4 small DC motors. The performance, external installation dimensions, and technical requirements of this series of motors comply with the JB/T9577-1999 standard and IEC international standards, and the mechanical dimensions and tolerances of the motors comply with ISO standards.
The Xi'an Simo Z series DC motors can be widely used in various industrial sectors such as metallurgical industry rolling mills, metal cutting machine tools, papermaking, dyeing and weaving, printing, cement, plastic extrusion machinery, etc.
The Xi'an Simo Z series DC motors adopt an advanced design. The stator frame uses a polygonal laminated structure, which effectively and fully utilizes the space and has the advantages of small size, light weight, and good performance. The stator yoke, magnetic poles, and armature core are all laminated with high-quality cold-rolled silicon steel sheets, which have good magnetic conductivity. The overall heat conduction performance is excellent. This series of motors uses rolling bearings and a structure for refueling without stopping the machine, and the insulation class is all Class F.
The Xi'an Simo Z series motors can not only be powered by a DC generator set but are more suitable for being powered by a static rectifier power supply. Moreover, they have a small moment of inertia, good dynamic performance, and can withstand a high load change rate, making them particularly suitable for control systems that require smooth speed regulation, high efficiency, automatic speed stabilization, and sensitive response.
- The installation types of the Z series motors comply with GB/T997 and IEC34-7 "Codes for the Types of Construction and Mounting of Electric Machines".
- According to the standards of GB/T4942 and IEC34-5 "Degree of Protection Provided by the Enclosures of Electric Machines", the protection levels of the enclosures of the Z series motors are of two types: IP23 and IP44.
- According to the standards of GB/T1993 and IEC34-6 "Methods of Cooling of Electric Machines", there are the following four cooling methods for the Z series motors. If users require other protection levels and cooling methods, they can be negotiated separately. The standard cooling air inlet of this series of motors is at the drive end (non-commutator end) of the motor.
3.1 IC06: External ventilation with a built-in blower; (Protection level is IP23)
3.2 IC17: The cooling air inlet is a pipeline, and the outlet is a louver for exhaust; (Protection level is IP23)
3.3 IC37: Both the cooling air inlet and outlet are pipelines; (Protection level is IP44)
3.4 ICW37A86: Fully enclosed with an air/water cooler. (Protection level is IP44) - The required cooling air volume, air pressure, and the power of the fan motor for each frame number are shown in Table 1.
- The position of the terminal box of the Xi'an Simo motor is on the right side of the frame when viewed from the drive end (non-shaft extension end) (i.e., the normal box position). If the user requires the terminal box to be on the other side, the "reverse box" should be indicated.
- The rated power of the motor refers to the condition where the altitude does not exceed 1000 meters and the ambient air temperature does not exceed 40°C.
- Both the armature circuit and the excitation circuit of this series of motors can be adapted to the power supply of a controllable power source, and they are also suitable for the power supply of a DC generator set.
- The working environment of this series of motors should not contain acidic, alkaline, or other gases that are corrosive to the insulation.
- The motors can be installed in relatively harsh environmental conditions, but the correct cooling method and protection level must be selected to ensure the normal operation of the motors.
- If the motors are used on ships, in wet tropical regions, or in working environments with salt spray, humidity, etc., separate agreements should be made.
- When the motors are powered by a static rectifier power source, the number of pulsating waves of the rectifier is not less than 6. Under the rated base speed, rated voltage, and rated load current, the peak ripple factor of the power source does not exceed 10%.
- The basic working mode of this series of Xi'an Simo motors is continuous load. If other working modes are required, separate agreements should be made.
- The standard rated voltages of this series of Simo motors are six types: 220V, 330V, 440V, 550V, 660V, and 750V. Other voltage levels can also be derived, which need to be agreed upon when placing an order.
- The basic mode of this series of Simo motors is separately excited, and the basic excitation voltage is 220V. Other excitation voltages can also be derived. This series of motors allows forced excitation, and the forced excitation voltage does not exceed 500V. During forced excitation, the excitation current can slightly exceed the rated excitation current instantaneously, but after the excitation current stabilizes, it must not exceed the rated excitation current value.
- The short-time overload capacity of this series of motors:
- The first type of motors (Type A) can withstand the short-time (one minute) overload specified in Table 2.
- The second type of motors (Type B) can withstand the short-time (one minute) overload specified in Table 3.
- The occasionally used short-time overload capacity refers to the ability of the motor to withstand a load exceeding the continuous rated load within one minute in rare or emergency situations. It is recommended to set the instantaneous opening device of the circuit breaker according to the occasionally used short-time overload capacity.
- The frequently used short-time overload capacity refers to the ability of the motor to repeatedly withstand a load exceeding the rated load as part of the normal working cycle. After short-time overload operation, the motor must operate under a light load so that the root mean square value of the load in the entire load cycle of the motor does not exceed its continuous rating.
- The second type of motors (Type B) should be able to withstand the following continuous loads:
- Continuously operate with a load of 115% of the rated power within the rated armature voltage and rated speed range. Under this load, the temperature rise will be higher, and other characteristics may be different from the regulations when operating under rated conditions.
- Within the rated armature voltage and rated speed range, after continuously operating at the rated load, immediately operate with a load of 125% of the rated power for two hours, and the temperature rise does not exceed the specified value, and other characteristics may be different from the regulations when operating under rated conditions.
- The motor is allowed a longer overload time at a lower overload multiple. For the second type of DC motors (Type B), when used occasionally, the overload multiple is allowed to reach 2.5 times (at the rated base speed), and the time does not exceed 15 seconds (but it needs to be negotiated with the manufacturer).
- Speed regulation rate:
- The speed regulation rate of this series of motors is not specified. If users have special requirements, they should be agreed upon when placing an order.
- Current change rate:
- Under all speeds and loads, the current change rate (di/dt) of this series of motors is allowed to reach 200 times the rated current per second.
- Noise and vibration:
- The noise of the Z series motors complies with the provisions of GB/T10069 "Methods for the Determination of Noise and Limits for Rotating Electrical Machines" and IEC34-9 "Noise Limits for Electric Machines".
- The vibration of the Z series motors complies with the provisions of GB/T10068 "Methods for the Determination of Vibration and Limits for Rotating Electrical Machines" and IEC34-14 "Methods for the Determination of Vibration and Limits for Electric Machines".
The first type: DC motors (Type A)
Users of this type of Simo motors can select the model and specifications of the motors according to the required capacity, speed, voltage, etc.
The second type: DC motors (Type B)
The rated output power of this type of Simo motors is slightly lower than that of Type A motors with the same center height and the same axial length of the base feet. Other data are basically the same. If the specifications of Type B motors are known, the specification table of Type A motors can also be used to initially select Type B motors. When making a preliminary selection, the rated power of Type B motors should be increased by about 25%. Then, select the relevant model and specifications from the specification table of Type A according to the increased power, but the "A" in the corresponding model should be changed to "B", and the corresponding power is still the original power before the increase (i.e., the original power of Type B motors). The final model and specifications can be determined through negotiation between the user and the manufacturer.
For the usage occasion requiring: 96KW 220V 185r/min Type B motor → Increase the power by 25%, corresponding to 120KW 220V 185r/min Type A motor → Check the specification table of Type A to get a similar model: A450-2A 11KW 220V 178r/min → Change the model to: Z450-2B, and this model approximately represents the 96KW 220V 185r/min Type B motor and can initially meet the requirements of the usage occasion.
The conversion relationship is:
First, find in the technical data table of the same type the rated voltage that is closest to and lower than the newly derived supply voltage, as well as the corresponding rated base speed and rated power. Generally, the higher the voltage and the higher the speed, the greater the output power, and vice versa.
- Accessories
This series of Simo motors can be equipped with a speed measurement and protection system composed of a tachogenerator (ZYS or ZCF type), a centrifugal switch, and a photoelectric pulse sensor or photoelectric encoder (SZGB type or TPD-J type), etc. Users should state it in the contract when placing an order according to their needs. This series of Simo motors can also be equipped with other models and types of speed measurement and protection devices provided by users, but it needs to be negotiated when placing an order, and the user should provide the external installation dimension drawings of the equipped speed measurement and protection devices in advance.
Temperature measurement or temperature-limiting protection elements can be installed in the stator windings and bearings of this series of Simo motors, and the terminal wires should be connected to the terminal box of the motor. Users should negotiate and state it when placing an order according to their needs.
Heaters can be installed inside the motors according to the needs of users, and it also needs to be negotiated and stated in the contract when placing an order. - Spare Parts
According to the needs of users and stated in the order contract, each motor can provide the following spare parts: one set of carbon brushes and one set of brush holders and brush rods.
Xi'an Simo Motor (Group) Co., Ltd. is a large domestic enterprise specialized in manufacturing large and medium-sized, high and low-voltage, AC and DC motors. It is a systematic power system provider integrating motor design and manufacturing, electrical control, mechanical processing, mold, casting, transportation and other automation and complete projects. Its production and sales scale ranks among the top in the national motor industry, maintaining a high-speed growth trend for 7 consecutive years. It was shortlisted in the top 500 of China's machinery industry in 2004 and ranked 58th in China's electrical industry in 2005. In 1995, it took the lead in obtaining the ISO9001-1994 quality system certification in the industry. In August 2005, it passed the ISO9001-2000 quality system certification of the China Quality Certification Center (CQC). In May 2006, it passed the ISO14000 environmental management system and OHSAS18000 occupational health and safety management system certifications. At the same time, it passed the European "CE", American "UL" and national mandatory "CCC" certifications. It is a quality and credit AAA-level enterprise. Its leading products have successively won honorary titles such as "Ministry/Provincial/Municipal Famous Brand Products", "Xi'an Inspection-free Products", and "China Glory Famous Brand Products".
In order to improve the quality of various electromechanical products, strengthen pre-sales and after-sales services, and make customers feel at ease and satisfied, Simo Motor resolutely implements the "Quality Assurance Statement" of eight scientific research and design institutes in the machine tool industry of the Ministry of Machinery Industry, conscientiously implements all the clauses in the statement, and strictly follows the rules and regulations of the ISO9001:2000 quality management system to ensure:
- Seriously implement relevant national standards, and strictly manufacture and inspect the products according to the standards or contract technical requirements. Unqualified products will not leave the factory.
- After the final assembly and on-line commissioning of various finished products such as product measurement bases, the assembly personnel conduct a 72-hour running test before delivery. Strictly conduct running-in tests and reliability tests according to relevant standards to improve the reliability of new products and eliminate early failures.
- Under normal sales conditions, the above-mentioned finished products are delivered strictly on schedule. Functional components are guaranteed to be supplied within three months, and can be supplied in advance in special cases. In case of delay, compensation will be implemented according to the "1997 New Measures for Quality Improvement".
- When customers find quality problems during the use of products, a reply will be made within 24 hours after receiving the customer's notice. For on-site services, start within 48 hours and ensure that maintenance personnel do not withdraw until the fault is eliminated.
- Complete technical documents are provided when the product leaves the factory. All product quality problems are covered by three guarantees (repair, replacement, return). If the product still does not meet the factory requirements after repair, the product will be returned or replaced.
- Simo Motor products are guaranteed for lifetime maintenance at cost after being sold.
- Before placing an order, please refer to the product catalog of Xi'an Simo Motor to determine the model specifications and other data of the required product. Try to select the standard specification products listed in the catalog. Please indicate the motor model, power, voltage, rotation speed, excitation method, excitation voltage, and structural installation form in the order contract.
- When there are special requirements for the product, such as double shaft extension, the terminal box position being the reverse box, the reverse rotation of the shaft, etc., they must be clearly indicated in the contract.
- If the required variety and specification are beyond those listed in this catalog, or there are other special requirements, a contract or a trial production agreement should be signed after mutual negotiation and agreement.
- Except for the shaft extension key of the motor, all accessories of various products of Xi'an Simo Motor are not within the supply scope. If users need accessories or spare parts, such as carbon brushes, brush holders, etc., please indicate the names, specifications, and quantities of the required accessories or spare parts in the contract in advance.
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