Related Manuals for SMC Networks CRQ2B 10 Series
Summary of Contents for SMC Networks CRQ2B 10 Series
- Page 1 Doc. no.CRQ2-OM00002-D PRODUCT NAME Compact Rotary Actuator MODEL / Series / Product Number CRQ2B 10 to 40...
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Page 2: Table Of Contents
Contents Safety Instructions 1．Outline 1-1 Specification 1-2 Effective output 1-3 Rotation range 2． Internal structure and parts description 2-1 Size 10,15 2-2 Size 20,30,40 3．Basic circuit of the rotary actuator Circuit structure Recommended equipment 4. Mounting 4-1 Restriction of the load to axis 4-2 Operation of axis fitting referring 4-3 Flange application 4-4 Piping and operating direction... -
Page 3: Safety Instructions
Safety Instructions These safety instructions are intended to prevent hazardous situations and/or equipment damage. These instructions indicate the level of potential hazard with the labels of “Caution,” “Warning” or “Danger.” They are all important notes for safety and must be followed in addition to International Standards (ISO/IEC) , and other safety regulations. - Page 4 Safety Instructions Caution We develop, design, and manufacture our products to be used for automatic control equipment, and provide them for peaceful use in manufacturing industries. Use in non-manufacturing industries is not covered. Products we manufacture and sell cannot be used for the purpose of transactions or certification specified in the Measurement Act.
- Page 5 Design / Selection Warning 1. Confirm the specifications. Products represented in this catalog are designed only for use in compressed air systems. Do not operate at pressures or temperatures, etc., beyond the range of specifications, as this can cause damage or malfunction. (Refer to the specifications.) We do not guarantee against any damage if the product is used outside of the specification range.
- Page 6 12. Select a speed within the product’s allowable energy value. If the product’s kinetic energy of the load exceeds the allowable value, it could damage the product, and cause a hazard to humans and damage the machinery and equipment. 13. Provide a shock absorber if the kinetic energy that is applied to the product exceeds the allowable value.
- Page 7 Mounting Warning 1. Operation manual Install the product and operate it only after reading the operation manual carefully and understanding its contents. Also, keep the manual in a location where it can be referred to as necessary. 2. Ensure sufficient space for maintenance activities. When installing the products, allow access for maintenance.
- Page 8 12. Place an external stopper in a position that is away from the rotating shaft. If the stopper is placed near the rotating shaft, the torque that is generated by the product itself will cause the reaction force which is directed to the stopper to be redirected and applied to the rotating shaft.
- Page 9 Caution 1. Do not use organic solvent to wipe the area of the name plate that shows the model. It will erase what is indicated on the name plate. 2. Do not hit the rotating shaft by securing the body or hit the body by securing the rotating shaft.
- Page 10 2. The cushion valve is not adjusted at the time of shipment. Therefore, an adjustment must be made in ccordance with the operating speed and the moment of inertia of the load. The absorption of kinetic energy by the bumper is regulated by the adjustment of the valve. An improper adjustment could lead to damage of the equipment and the product.
- Page 11 2. Install an air filter. Install an air filter upstream near the valve. Select an air filter with a filtration size of 5μm or smaller. 3. Take measures to ensure air quality, such as by installing an aftercooler, air dryer, or water separator.
- Page 12 Auto Switches Precautions Design / Selection Warning 1. Confirm the specifications. If the product is used with excess load applied or beyond the specification range, this may cause the product to break or malfunction. We do not guarantee against any damage if the product is used outside of the specification range.
- Page 13 8. Provide enough space for the lead wire. Applying stress to the lead wire and auto switch body connection part increases the risk of disconnection. Provide a space of at least the min. bending radius from the lead wire and auto switch body connection part.
- Page 14 2) If the internal resistance of a light emitting diode causes a problem, select an auto switch without an indicator light. <Solid state / 2-wire type> Generally, the internal voltage drop of the solid state auto switch is larger than that or the reed auto switch.
- Page 15 5. Mount an auto switch at the center of the operating range. In the case of 2-color display auto switch, mount it at the center of the green LED illuminating range. Adjust the mounting position of the auto switch so that the piston stops at the center of the operating range.
- Page 16 5. Avoid repeatedly bending or stretching lead wires. Broken lead wires will result from repeatedly applying bending stress or stretching force to the read wires. Stress and tensile force applied to the connection between the lead wire and auto switch increases the possibility of disconnection.
- Page 17 Operation Environment Warning 1. Never use in an atmosphere with explosive gases. The structure if auto switches is not intended to prevent explosion. This may lead to explosion hazard. Caution 1. Do not use in an area where a magnetic field is generated. Auto switches will malfunction or magnets inside rotary actuators will become demagnetized.
- Page 18 Maintenance Warning 1. Removal of equipment, and supply/exhaust of compressed air. Before any machinery or equipment is removed, first ensure that the appropriate measures are in place to prevent the fall or erratic movement of driven objects and equipment, then cut off the electric power and reduce the pressure in the system to zero.
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Page 19: Specification
1. Outline This operation manual explains “rack and pinion type compact rotary actuator”. Then using the product, load (moment of inertia), rotation time and other factors have to be considered. So, confirm the specification of the product prior to use. 1-1 Specifications Table1 Specification-1 Size... -
Page 20: Effective Output
1-2 Effective output Fig.1 Effective output 1-3 Rotation range When pressurized from the Port A, the shaft will rotate clockwise. Flat face and parallel key position indicate B port is pressurized. Key or flat Key or flat B Port B Port A Port A Port Angle... -
Page 21: 2． Internal Structure And Parts Description
2. Internal structure and parts description 2-1 Size 10,15 24 Heat transferred label 23 Seal washer 22 Cushion pad 21 Piston packing 20 End cover gasket 19 Cover gasket 18 Packing 17 Retainer 16 Bearing 15 Cross recessed No.0 screw 14 Cross recessed No.0 screw 13 Hexagon socket head screw 12 Adjust bolt... -
Page 22: Size
2-2 Size 20,30,40 26 Heat transferred label No cushion ：4pcs.， with cushion： 6pcs. 25 Steel ball 24 Seal washer 23 Cushion packing Only cushion type included 22 Piston packing 21 Gasket 20 Packing 19 Retainer 18 Parallel key 17 Bearing 16 Cushion valve Ass’y Only cushion type included 15 Cross recessed No.0 screw... -
Page 23: 3．Basic Circuit Of The Rotary Actuator
3. Basic circuit 3-1 Circuit structure The standard circuit for operating a rotary cylinder with an air filter, regulator, solenoid valve and speed controller is shown in Figure 1 below. Regulator Speed controller Air filter Solenoid valve Rotary actuator Fig.2 Basic circuit 3-2 Recommended models Shaft 4 shows recommended solenoid valve, speed controller, tube for the basic circuit in Fig.2. -
Page 24: Mounting
4. Mounting 4-1 Restriction of the load to axis Shaft of load below shows the allowable load when no moving load applied to axis direction. Avoid applying load to the axis directly as much as possible. Table5 Allowable load Load direction Size Fr 15.7... -
Page 25: Flange Application
4-3 Flange application See shaft 6 for L dimension of the body. JIS hexagon socket head bolt is neatly placed in the rotary actuator groove. Table 6 Size Bolt 22.5 24.5 28.5 Fig.6 4-4 Piping and operating direction Fig-7 shows piping ports of the rotary actuator. Shaft-7 shows the port size. -
Page 26: 5．Setting Rotation Time
5. Setting rotation time The load inertia lead to cause the damage of the shaft and internal parts even if generated torque of rotary actuator is small. The calculation of load inertia moment and kinetic energy is necessary to set the rotation time for operating the rotary actuator. - Page 27 Shaft for calculation of Inertia moment - 26 -...
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Page 28: Kinetic Energy
5-2 Kinetic energy Shaft 8 shows the allowable kinetic energy of the rotary actuator. The end angular speed ω is obtained by: Table8 Allowable kinetic energy Allowable kinetic energy mJ Size Cushion angle No cushion Cushion type － － 0.25 －... -
Page 29: External Stopper
5-3 External stopper When kinetic energy generating the load exceeds the rotary actuator allowable kinetic energy, the inertia force has to be adsorbed by externally installed cushioning function. 5-3-1 Install position of external stopper External stopper lead to cause the rotary actuator axis torsion, damage and the breakage of the axis bearing depending on install location of stopper and load shape and the place. -
Page 30: 6．Rotary Actuator With Autoswitch
6. Rotary actuator with auto switch The piston of rotary actuator with auto switch is attached with magnet on it, and equipped with auto switch outside to detect the piston position (shaft flat face and key groove position). 6-1 Auto switch specification Load voltage Lead wire length（ｍ）... -
Page 31: Autoswitch Installation
6-2 Auto switch installation Use small driver (5 to 6mm of grip diameter ) to tighten auto switch set screws with 0.1 to 0.2N･m of tightening torque. se slotted setscrew (with urethane damper) as setscrew. Fig.12 6-3 Auto switch set position Operation range at optimum set position (Lm/2) Most sensitive position... -
Page 32: Internal Structure And Operation Principle
6-4 Internal structure and operation principle Most sensitive position Most sensitive position Piston A Switch A Switch A Operating range Operating range Port A Piston B Magnet Magnet Fig.14 In figure 14, the switch A is turned on. When pressurized from port A, piston B moves to the left and piston A moves to the right, and the shaft rotates clockwise. -
Page 33: 7．Cushions
7. Cushions a) Rotary actuator is not adjusted so that the cushions work during shipment. Adjust the cushion valve attached to the cover depending on rotation time and load inertia moment.（See Fig 15） b)Rotating the cushion valve reduces the orifice diameter and increases cushion effect. Counterclockwise increase orifice diameter and reduces cushion effect. -
Page 34: 8．Maintenance Inspection
8. Maintenance・Inspection Periodic inspection is necessary for optimum use. Generally, annual inspection is recommended for the rotary actuator. Even if no problem is found, seal parts replacement is recommended every three years. It is highly possible that the actuator is operated out of specification when the components like shaft, pinion, rack, bearing are broken. -
Page 35: Disassembling Procedure
8-2-2 Disassembling procedure (1) Loosen cross recessed no.0 screw（size 10,15）or roundhead screw（size 20,30,40）. (2) Pull out the bearing retainer and the shaft from the body. Remove the bearing from the housing at this time. (3) Loosen hexagon socket head bolt to remove the cover Ass’y and the end cover Ass’y. (4) Push piston Ass’y from one side to pull out two piston Ass’ys from the body. -
Page 36: Assemble Procedure
8-2-3 Assemble procedure (1) Clean parts thoroughly before assembling to remove dust. Apply grease to parts where specified in shaft 11 so that the surface become glossy (Not too much!). Don’t damage the packing when attaching the piston packing to the piston. Table 11 Parts applied with grease Grease applied parts Grease... - Page 37 End cover Ass'y End cover gasket End cover Adjust bolt Ass’y Size 10,15 Gasket Cushion packing End cover Cushion valve Ass’y Adjust bolt Ass’y Size 20,30,40 (with cushion) Fig.19 Insert and attach the cushion packing with the direction in the drawing below. Insert direction Side（Cross nutsection）...
- Page 38 Shaft Pinion gear It greases it to extent where the ditch of the gear is buried. Fig.22 (2) Set the bearing to the housing of the body, and insert the piston Ass’y to the body. Since the piston packing goes through the bearing housing, insert the piston Ass’y slowly pressing the packing inside so that packing is not gouged.
- Page 39 (3) Mount the cover and the end cover, and push the piston Ass’y and the cover until they touch the end cover as in Fig.24 Adjust the hexagon socket head set screw (adjust bolt) so that the screw does not contact with the piston Ass’y.
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Page 40: Troubleshooting
8-3 Troubleshooting Problem Possible cause Solution Supply pressure is not applied Correctly set the regulator at the supply correctly. pressure side. The directional switching Correctly apply a signal to the directional valve (such as a solenoid switching valve (such as a solenoid valve). valve) does not switch. - Page 41 Problem Possible cause Solution Air leakage from the The seal parts need to be replaced. Piston seal is worn out. shaft Contact SMC. Replace the rotary actuator with the new one. After that, take the measures below. ・Calculate the kinetic energy applied to the rotary actuator and adjust the load and rotation speed to make the value within the allowable kinetic energy.
- Page 42 Revision history A: 360° specification added. B: Grease name change. C: Changed Hexagon nut with flange to small hexagon nut. Add tightening torque. Move to new format. D: Revised safety instructions. Tel: + 81 3 5207 8249 Fax: +81 3 5298 5362 https://www.smcworld.com Note: Specifications are subject to change without prior notice and any obligation on the part of the manufacturer.
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