1. Working principle and common parameters of pull rope displacement sensor The function of pull rope type displacement sensor is to convert mechanical motion into electric signal that can be measured, recorded or transmitted. The pull-rope displacement sensor is wound on a threaded hub made of a stretchable stainless steel wire. The hub is connected to a precision rotating sensor. The sensor can be an incremental encoder, absolute (stand-alone) encoder, hybrid or Conductive plastic rotary potentiometer, synchronizer or resolver.
In operation, the pull-rope displacement sensor is mounted in a fixed position and the pull rope is attached to the moving object. The linear motion of the drawstring is aligned with the axis of motion of the moving object. When the movement occurs, the drawstring stretches and contracts. An internal spring ensures that the drawstring tension does not change. The threaded hub drives the rotation of the precision rotary sensor and outputs an electrical signal that is proportional to the distance the rope moves. Measuring the output signal gives the displacement, direction, or velocity of the moving object.
Common parameters include measurement stroke, output signal mode, linearity, repeatability, resolution, wire diameter specifications, outlet outlet tension, maximum round-trip speed, weight, input resistance, power, operating voltage, operating temperature, vibration, protection rating, etc. .
2, pull rope displacement sensor signal output method Rope displacement sensor signal output is divided into digital signal output and analog signal output, digital output type can choose incremental rotary encoder, absolute encoder, etc., the output signal is square wave ABZ signal Or Gray code signal, the maximum stroke can be achieved 10000 mm, the maximum linear accuracy of 0.01%, the maximum resolution can reach 0.001 mm / pulse according to the configuration.
Analog output type can choose precision potentiometer, Hall encoder, absolute encoder, etc. The output signal can be 4-20 mA, 0-5 V, 0-10 V, serial SSI and resistance signal, etc. It can reach 12500mm, use environment can reach IP65 maximum protection level, -45°C~+105°C wide temperature environment.
3, the use of installation precautions 1. Use the bottom of the four fixed screw holes, according to the site and machine installation space facilities, direct installation or additional protection or other mechanical use.
2. When installing the stainless steel cable, attention should be paid to the horizontal angle, that is, the mechanism that makes the cable from the outlet to the moving part as much as possible, slide horizontally during operation to keep the minimum angle (tolerance +/- 30) to ensure measurement accuracy and The life of the steel cable.
3. The wire rope body is stainless steel coated with fluorine layer, do not allow it to be cut by the external force, burning, impact and other improper things happen: excess dust, accumulated debris or enough to destroy the wire rope stored in the internal The pulley or outlet will cause damage to the cable, leading to unsatisfactory operation.
4 is not installed on the table or fixed seat, do not pull the cable with your hand or other products and let it spontaneously rebound. This will cause the wire to break, damage the body structure and personal safety.
5. The instantaneous acceleration of the reciprocating motion of the MPS-S and MPS-M series products must not exceed 1 m/s; the instantaneous acceleration of the reciprocating motion of MPS-L and MPS-LP series products must not exceed 0.5 m/s; The wire will be broken and the company will not assume responsibility beyond this scope.
6. If used in non-linear motion agencies, please install the appropriate pulley operation.
7. If used in harsh environments or special occasions, please install protection agencies or contact the manufacturer to avoid loss.
Pull-rope displacement sensors are divided into digital output and analog output two product categories. Suitable for linear guide systems, hydraulic cylinder systems, telescopic systems, storage location positioning, pressure machinery, papermaking machinery, textile machinery, sheet metal machinery, packaging machinery, printing machinery, level control instruments, construction machinery and other related size measurement and position control. In the testing machine industry screen display, digital display system is also more widely used, other applications can be customized pull rope displacement sensor. In addition, the pull rope displacement sensor can completely replace the grating ruler and electronic ruler to realize low-cost high-precision measurement.
2-2.5 Ton Electric Pallet Truck
Zowell Electric Pallet Truck with 2000~2500kg load capacity is a material handling equipment mainly used in the transfer of materials in pallet inside and outside the production line and warehouse. The pallet truck is only used for plane transportation for no lifting mast. Although the pallet truck cannot lift the goods, but the purchase and maintenance costs are quite lower than other forklifts.
Zowell XP electric pallet trucks are equipped with AC drive motor and multi-functional handle, emergency switch, dual balance wheel as well as side loading battery for safety, efficiency and less fatigue in operation. Buffered pedal also extends the flexibility for various scenarios.
Detail features
1. Multifunctional handle
The multifunctional handle is imported from Germany. The operators can control
the moving speed easily through the use of the handle, which is equipped with
an emergency reverse button. This effectively protects the operator against
injury in the event of an accident. The handle can achieve braking in both vertical
horizontal positions, thus improving the tugger safety.
2. Safety protection
The soft PU armrest features a superior resistance to compression and impact,
thus reducing indirect hits and injury during stacker movement. This can
provide safety protection as well as comfort for the operators.
3. Safety switch
The power can be rapidly cut off in an emergency to ensure safety.
4. Buffered pedal
The foldable pedal saves space when the stacker is not in use. It features an
excellent shock absorption function, providing comfort for the operators, and
reduce working fatigue.
5. Side loading and unloading of storage battery
Side loading and unloading of storage battery makes maintenance and changing
easy. Users can select among different brands, including FAMM, GS, HOPPECKE,
and Trojan.
6. Dual balance wheel device
This device has a high passing ability because the running is stable.
7. AC drive
The maintenance free AC drive motor has no carbon brush, no contacts, a large
torque and large output power. It uses a rear axle drive, providing perfect
power and gradeability.
8. Lifting height limit
The lifting height can be precisely controlled to reduce energy waste.
9. Multifunctional meter
A multifunctional meter can display integrated electricity quantity, working time
and failure codes. The operators can know the running condition of the stacker
via the meter.
10. High power pump station
The 2.2kw high power pump station can provide a strong power for transporting
goods. The noise is low as well. The whole truck noise is lower than 70 dB.
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Suzhou Pioneer Material Handling Equipment & Technology Co., Ltd , https://www.xianfengforklift.com