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Electric Push Rod

What Is Electric Push Rod

 

 

Electric push rod is a kind of electric drive device which converts the rotational motion of motor into the linear reciprocating motion of push rod. It can be used as an executing machine in various simple or complex technological processes to achieve remote control, centralized control or automatic control.

 

Benefits of Electric Push Rod
 

Electric push rod are safer. Much safer
Safety is a primary concern in any process environment. Management doesn't want injuries on their hands, so when it comes to pitching a new investment in electric push rod, safety is a major benefit.
Compared to their mechanical counterparts, electrical actuators decrease the risk to workers considerably. They don't require fluid to ensure smooth motion, which reduces the danger of leaks and slippages. They also use acme screw units to hold a load in place, so even in the event of a power outage, you can be sure the actuator won't slip from its position.

 

They're completely programmable
Electric push rod require a motor and some sort of control panel to operate them. In more sophisticated environments, you can program any desired specification and offer a consistent, stable movement, time and time again.
As a result, electric push rod can reduce failure rates and increase productivity. And, should an actuator be reassigned for a different type of movement, they can easily be re-programmed straight from the control system itself.

 

No plumbing = Less maintenance
If your boss is trying to keep costs down, electric push rod are the way to go. While the initial investment might be higher, you'll receive a long-term payoff of less plumbing, less maintenance and lower cost of replacement.
Because they don't require external pumps, they're also considerably smaller and quieter to work with, meaning they can be deployed in tighter, more enclosed spaces.

 

They're perfect for low air, low-temperature environments
Pneumatic and hydraulic actuators use air and fluid to generate movement, while electric push rod use a motor. In colder environments where air is prone to freezing – or in environments without access to air – electric push rod are the safer, more steadfast choice. All you need is a reliable power source.

 

Why Choose Us

 

Quality Assurance
In addition to the conventional measuring tools such as durometer and projector, we also have advanced measuring equipment such as ZEISS CMM, universal testing machine to meet the advanced measurement requirements of product size and material.
The professional QC team also enables us to check the quality of each batch of products in the factory to ensure the quality of each batch of products delivered.

 

Experience and expertise
The technicist, salesman and inspector in our team have rich professional knowledge and business experience. All of them are focused on providing the custom with products worth every penny.

 

Quality Services
Continuously providing product/service to customer in U.S.A, Canada, Germany, England etc. more than 20 years. We supply to many famous companies in the World like LEGRAND, LEMKEN, ABB, RHEEM, ZURN, WATTS etc.

 

Industrial Electric Push Rod Has A Wide Range Of Applications In Industrial Scenarios
 

Automatic production line: Industrial electric push rod is often used in automatic production line of material handling, assembly, positioning and other work. By controlling the movement speed, strength and position of the electric push rod, production operations can be realized and production efficiency and quality can be improved.

 

Mechanical equipment: Industrial electric push rods can be integrated into various mechanical equipment to control the linear movement of the machine. For example, in CNC machine tools, injection molding machines, packaging machines and other equipment, the electric push rod can achieve precise position control and action adjustment, and improve the performance and stability of the equipment.

 

Lifting platform: Industrial electric push rod can be used in various lifting platforms, such as cargo hoists, working platforms, etc. By controlling the telescopic length of the electric push rod, the lifting movement of the platform can be realized, which is convenient for the loading and unloading of goods and the work of operators.

 

Hydraulic replacement: Traditional hydraulic systems have problems such as hydraulic oil leakage and large noise in industrial scenarios, and industrial electric push rods can be used as a substitute for hydraulic systems to provide clean and silent linear motion control solutions.

 

Medical equipment: Industrial electric push rod is also widely used in the field of medical equipment, such as operating table, hospital bed, etc. By controlling the movement of the electric push rod, the height adjustment and angle adjustment of the medical equipment can be realized, and the accuracy and comfort of the medical operation can be improved.

 

Main Structure Of Electric Push Rod
200mm行程低噪音小推杆
150mm行程电动推杆
100mm行程低噪音大推杆
100mm行程低噪音小推杆

The electric push rod is composed of driving motor, reducer gear, screw, nut, guide sleeve, push rod, slide seat, spring, housing, turbine, micro-control switch, etc.

 

Electric push rod is a new type of electric actuator. The electric push rod is mainly composed of motor, push rod and control device. It can realize long-distance control and centralized control. Electric push rod moves to and fro within a certain range of travel. Generally, the standard travel of electric push rod is 100, 150, 200, 250, 300, 350, 400 mm. Special travel can also be designed and customized according to different application conditions. The electric push rod can be designed with different thrust according to different application loads. Generally, its maximum thrust can reach 6000N, and its no-load running speed is 4mm~35mm/s. The electric push rod is powered by 24V/12V DC permanent magnet motor, which converts the rotational motion of the motor into linear reciprocating motion. Push a group of connecting rod mechanism to complete the switching work of air valve, valve, gate, baffle, etc.

 

Using electric push rod as actuator can not only reduce the air source device and auxiliary equipment needed by using pneumatic actuator, but also reduce the weight of actuator. The pneumatic actuator needs certain air pressure in the whole control operation process. Although the amplifier with small consumption can be used, the gas consumption is still huge over time. With electric push rod actuator, when the control opening is changed, the power supply is needed, and when the required opening is reached, the power supply is no longer needed. Therefore, from the point of view of energy saving, the electric push rod actuator has obvious advantages over the pneumatic actuator in energy saving. It is suitable for long-distance operation and widely used in the opening and closing, material handling and flow control of air valves, valves and gates in power, chemical industry, metallurgy, mining, light industry, transportation, ships and other departments. Now it has been used by more and more departments to replace the automatic devices of mechanism hand, hydraulic valve and deceleration transmission mechanism.

 

Electric Push Rod vs. Overhead Cam Engines

 

 

Size and Weight
The electric push rod takes up less space than its overhead cam counterpart because it keeps the camshaft inside its engine block. The compact design reduces both its bulk and weight.
Thanks to its reduced bulk and lighter weight, the electric push rod costs less to manufacture, maintain, and repair. It's also easier and cheaper to customize for higher performance, such as drag racing.
In comparison, the overhead cam engine places its camshafts and the cam drive system over the cylinder head. The arrangement increases the engine's weight and mass. Furthermore, the greater bulk also raises the engine's center of gravity, which affects the vehicle's overall balance during sharp turns.
More massive engines also require additional work, which drives their price tag and maintenance bill up.

 

Complexity
Next is complexity. The electric push rod is a less complicated design with fewer parts. By minimizing the number of miscellaneous items, it reduces the chances of complications. It also plays a role in the engine's compact size and lighter weight.
In comparison, the overhead cam engine is more complex and uses more parts, such as the timing chain. More items mean greater complexity and more numerous potential points of failure. The sizable number of parts also increases the overall weight and bulk of the overhead cam engine.

 

Fuel Consumption
Generally, electric push rod burn less fuel than overhead cam engines. A electric push rod runs at lower speeds, which consume less gasoline than the higher speeds that an overhead cam engine can reach.

 

Operation at Lower RPMs
At lower RPMs, the electric push rod performs better than the overhead cam engine. The pushrod design leverages its superior airflow to generate power earlier. The engine also falls flat at a higher power level.
If you want more power from the overhead cam engine, you must rev it up. Doing so uses up more fuel and wears out parts faster.
Furthermore, you generally don't drive at higher RPMs. Thus, the electric push rod, which operates more efficiently at low RPMs, does better at daily driving than the more powerful overhead cam engine.

 

Analysis Of Common Faults In The Use Of Electric Push Rod

 

There may be many problems during the use of the machine. Therefore, there will also be many unexpected problems if the operation of electric push rod is improper, for example, it may stop working. Usually, the main reason why an electric push rod stops working is that there is something wrong with the hardware in it.
What users should pay attention to during use is that users make sure that the electric push rod works in a stable space as much as possible, which is also necessary to focus on users when they are operating small electric push rod. Because their bearing capacity is relatively small. If operators do not pay attention to the surrounding environment, the probability of failure will be greatly increased. Additionally, users should also need to pay attention to the environmental conditions around the product, such as temperature. In addition, it should be noted that its lateral force should be kept within an appropriate range.

Electric Push Rod Troubleshooting
The start button does not respond. Usually, the motor is not connected.
Solution: Check the power supply wiring and use a multimeter to measure whether there is voltage input at the input terminal. After starting the motor, there is a buzzing sound and it does not rotate. This situation indicates that there is a phase loss.
Solution: Since the input voltage is generally a three-phase power supply, it is necessary to check whether there is a virtual connection or phase out. After starting the motor, the motor rotates for a while and then stops, which means overload.
Solution: Replace the electric push rod or increase the length of the crank arm to increase the rated power to the handle. Motor overheating leads to burnout. Generally, the overload protection fails.
Solution: First, check the wiring to see if there is a wrong connection of positive and negative poles, check the force bifurcation point at the front end of the electric push rod, and whether the machine bearing is stuck due to excessive force. At this time, what users need to do is to loosen the machine position and adjust the force position.

 

 
Our Company

 

Vitech Development Limited has been focusing on product design, development and OEM products which are used widely in all commercial, industrial and civil fields.
We are professional in many of the markets in which we operate and are distinguished by high quality service and innovative design based on the drawing, even an idea.
We stick to the fact from the beginning that the competitive pricing and quality are the starting points of all business.
The technicist, salesman and inspector in our team have rich professional knowledge and business experience. All of them are focused on providing the custom with products worth every penny.

 

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Asked Questions

 

Q: What is an electric push rod?

A: Electric push rod, also known as push rod motor, electric cylinder and linear actuator. The electric putter is an electric drive that converts the motor's rotational motion into a straight reciprocating motion of the push rod.

Q: What causes electric push rod to fail?

A: Most common is a sticking hydraulic lifter which can end up with enough of a gap between the top of the lifter and the push rod that the push rod can get sideways and end up bent. Metal fatigue over the years can also cause a electric push rod to bend. Pretty rare but it can happen when you have a bad engine backfire.

Q: How does the electric push rod system work?

A: Electric push rod make use of the current passing through the servo motor to produce torque for the driving of the power screw and generate force. Multiple electric force linear actuators make use of roller screws which have excellent force transmission capabilities.

Q: What happens when an electric push rod is supplied with an electric current?

A: Electric push rod convert electricity into kinetic energy either in a rotary motion or a single linear direction. They automate manual valve functions to improve efficiency and are a critical part of many applications across several industries.

Q: How to choose an electric push rod?

A: Understanding the kind of movement that is required in the application. ...
Assess the level of precision that you need from the actuator. ...
Take into consideration the energy input. ...
Access the amount of force you require. ...
Ascertaining the speed of the electric push rod.

Q: How does an electric push rod switch work?

A: An electric push rod moves as its motor spins, which drives the acme screw to push the shaft rod out or pull it in. The direction of the motor spin determines the direction of the shaft rod movement. However, without a mechanical limit switch, there are no stop points on neither end of the travel.

Q: Does electric push rod length matter?

A: An ideal electric push rod length will minimize the distance that the valve trip travels across the valve tip. Pushrods that are either too long or too short only increase this distance. A too-short electric push rod positions the rocker tip too far to the intake (inboard) side of the valve tip.

Q: How strong are electric push rod?

A: The force of a electric push rod can vary between models and technologies. Force can be much less than 1 lb in small electric push rod to 2000 lbs or more in large actuators, depending on the technology.

Q: Why don't electric push rod rev high?

A: It comes down to valve float, which is when the pushrod assembly begins to lose contact with the camshaft profile. As the pushrod forces the rocker arm down to activate the valve, high revs can cause things to fall out of sync. It's basically due to mass within the entire system.

Q: Do electric push rod have lifters?

A: This basic setup has changed little since the earliest days of electric push rod. The only major change in these components has been roller lifters replacing flat bottom lifters on late model engines.

Q: Can electric push rod have 4 valves per cylinder?

A: Although you could design a V-8 engine that uses pushrods to operate four valves per cylinder, the layout lends itself to using just two.

Q: Is pull-rod better than electric push rod?

A: The electric push rod can provide better stability, while it is also cheaper. Although a electric push rod may work better for one car, it might not for another and vice-versa with the pull-rod – sometimes, though, it comes down to deciding on aerodynamic and performance gains against cost and practicality in the ground-effect era.

Q: How do you adjust electric push rod?

A: Bring Cam to Base circle for the tappets you wish to adjust. Rotate the engine. Watch the intake valve open (pushrod goes up) and then close (pushrod goes down). Continue rotating slowly until the cylinder's piston reaches top dead center (TDC).

Q: Does electric push rod length affect performance?

A: Excessive pushrod length can then eliminate the ability of the cylinder to build compression. Naturally, this can cause anything from poor performance to, in severe cases, the engine not to start or even run.

Q: Are electric push rod good?

A: Electric push rod benefit from all that torque down low in the RPM band with easy driving manners. Accelerating away from a stop light or cruising on the highway takes minimal revs, which translates directly to fuel savings.

Q: Do electric push rod have camshafts?

A: Sometimes referred to as overhead valve (OHV) engines, pushrods use only one camshaft. Most electric push rod use a timing chain to connect the crankshaft to the cam.

Q: What is acceptable push rod travel?

A: The distance between the mark on the pushrod and the face of the brake chamber is called the free stroke (½ to ¾ of an inch — 12 to 20 mm is a good range). If this distance is more than ¾ of an inch (20 mm), the brakes need adjustment.

Q: How do I know what electric push rod length I need?

A: At full lift the contact spot should be the same distance past the center of the valve tip toward the exhaust side as it was when the lifter was on the base of the camshaft (position #3). Fully closed is back to position #1.

Q: How do you optimize electric push rod length for better performance?

A: Inspect the position of the mark and re-adjust the electric push rod length until the witness mark is roughly 1/3rd of the distance toward the intake side from centerline. This will generate a close approximation of the ideal electric push rod length for street engines.

Q: How do you control the speed of an electric push rod?

A: By varying the duty cycle, the average voltage supplied to the actuator's motor can be controlled. A higher duty cycle corresponds to a higher average voltage, leading to faster actuator speed, while a lower duty cycle results in a lower average voltage and, consequently, slower actuator speed.

We're professional electric push rod manufacturers and suppliers in China, specialized in providing high quality OEM service. We warmly welcome you to wholesale customized electric push rod at competitive price from our factory.

150mm Electric Push Rod, 150mm Stroke Electric Push Rod
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