China Custom Professional wholesale durable high speed electric 4 * 2 truck near me manufacturer

Product Description

Express electric vehicles/ Electric truck/ Express delivery electric vehicle

Product parameters

Model Electric truck
Size 4000*1300*1740
Carriage Length 2.25m
Max. speed 40km/h
Power 4kw
Total weight 800kg
Loading weight 600kg
Battery voltage 72V 180Ah
Climbing ability 15%
Driving HangZhouage 80-120km
Min. ground clearance 150mm
Braking distance (full load,20km/h) 6m
Min. turning radius 8m
Before the wheel track 1150mm
After the wheel track 1220mm
Color According to requirement
Charging time 6-8 hours
Battery Charger General Charger/Intelligent Battery Charger

Product details

 (The actual specification and size are not limited to the above figure, it shall be made based on the customers’ requirements.)
Material
  2.1 Body: Electric truck shell adopts thickening choice steel production
  2.2 Chassis:Integral steel frame construction and suspension components treated with rust resistant.
3.Advantage::Less noise and zero emissions, only 1USD energy cost per 150km, energy efficiency performance, driver comfort, delivering reliability, low maintenance costs, suit every intensive or light operation.
4.Application: Warehouse, express, market, transport cargo and passengers in country and city, etc.
Technical Advantages
1)  The chassis system is designed as trapezoidal structure with high strength and high safety factor based on the standards for freight vehicle; the structure has high reliability and is simple to manufacturer; and it is easy to guarantee the processing requirements.
2)  The rear axle, which is advanced electronic electric axle jointly developed and designed by our company and the technology center of HangZhou city has full-floating mechanism and is featured by high transmission efficiency, low noise, no leakage and stable speed changing. The input shaft of rear axle and output shaft of motor are connected via involute spline and there is no drifting clearance; the transferred torque is large, which guarantees the good drive performance of the complete vehicle.
3)  The electric control system, which is U.S. advanced INBOER electric control system, has good under-voltage and over-current protection capability, temperature control, speed regulation, current regulation and vehicle dynamic monitoring capability, as well as high intelligence degree. It is the excellent product that fills the domestic and foreign blank.
4)  The patented appearance design is fashionable and has smooth line; it meets the principle of aerodynamics; the   driving resistance of vehicle is reduced and the driving distance is prolonged. 
5)  The high-efficiency and sensitive double-pipeline hydraulic braking system makes the vehicle more safe and reliable. 
6)  The newly designed adjustable push-pull battery box makes the battery maintenance t more convenient.
Certifications

Customer visit

Company information
We’re 1 professional manufacturer which refitting special truck and trailer in China, established in 1969, more than 40 yrs producing experience, a growing enterprise with endless innovations and development. Our corporation mainly specializes in the various semi trailers and special vehicle related business, such as dump truck, tanker trailer, concrete mixer truck, and etc. Also, our business line ranges from the research, development, and design to the manufacture and sales for other automobile accessories, especially for axles and hydraulic cylinders. We’re one of the earliest company to get the approval of the ISO, CCC and Compulsory Product Certification Enterprises. We have exported more than 30 countries from 2005.Looking forward to your visiting or calling.

Cooperation Partner

 

What Are the Advantages of a Splined Shaft?

If you are looking for the right splined shaft for your machine, you should know a few important things. First, what type of material should be used? Stainless steel is usually the most appropriate choice, because of its ability to offer low noise and fatigue failure. Secondly, it can be machined using a slotting or shaping machine. Lastly, it will ensure smooth motion. So, what are the advantages of a splined shaft?
Stainless steel is the best material for splined shafts

When choosing a splined shaft, you should consider its hardness, quality, and finish. Stainless steel has superior corrosion and wear resistance. Carbon steel is another good material for splined shafts. Carbon steel has a shallow carbon content (about 1.7%), which makes it more malleable and helps ensure smooth motion. But if you’re not willing to spend the money on stainless steel, consider other options.
There are 2 main types of splines: parallel splines and crowned splines. Involute splines have parallel grooves and allow linear and rotary motion. Helical splines have involute teeth and are oriented at an angle. This type allows for many teeth on the shaft and minimizes the stress concentration in the stationary joint.
Large evenly spaced splines are widely used in hydraulic systems, drivetrains, and machine tools. They are typically made from carbon steel (CR10) and stainless steel (AISI 304). This material is durable and meets the requirements of ISO 14-B, formerly DIN 5463-B. Splined shafts are typically made of stainless steel or C45 steel, though there are many other materials available.
Stainless steel is the best material for a splined shaft. This metal is also incredibly affordable. In most cases, stainless steel is the best choice for these shafts because it offers the best corrosion resistance. There are many different types of splined shafts, and each 1 is suited for a particular application. There are also many different types of stainless steel, so choose stainless steel if you want the best quality.
For those looking for high-quality splined shafts, CZPT Spline Shafts offer many benefits. They can reduce costs, improve positional accuracy, and reduce friction. With the CZPT TFE coating, splined shafts can reduce energy and heat buildup, and extend the life of your products. And, they’re easy to install – all you need to do is install them.
splineshaft

They provide low noise, low wear and fatigue failure

The splines in a splined shaft are composed of 2 main parts: the spline root fillet and the spline relief. The spline root fillet is the most critical part, because fatigue failure starts there and propagates to the relief. The spline relief is more susceptible to fatigue failure because of its involute tooth shape, which offers a lower stress to the shaft and has a smaller area of contact.
The fatigue life of splined shafts is determined by measuring the S-N curve. This is also known as the Wohler curve, and it is the relationship between stress amplitude and number of cycles. It depends on the material, geometry and way of loading. It can be obtained from a physical test on a uniform material specimen under a constant amplitude load. Approximations for low-alloy steel parts can be made using a lower-alloy steel material.
Splined shafts provide low noise, minimal wear and fatigue failure. However, some mechanical transmission elements need to be removed from the shaft during assembly and manufacturing processes. The shafts must still be capable of relative axial movement for functional purposes. As such, good spline joints are essential to high-quality torque transmission, minimal backlash, and low noise. The major failure modes of spline shafts include fretting corrosion, tooth breakage, and fatigue failure.
The outer disc carrier spline is susceptible to tensile stress and fatigue failure. High customer demands for low noise and low wear and fatigue failure makes splined shafts an excellent choice. A fractured spline gear coupling was received for analysis. It was installed near the top of a filter shaft and inserted into the gearbox motor. The service history was unknown. The fractured spline gear coupling had longitudinally cracked and arrested at the termination of the spline gear teeth. The spline gear teeth also exhibited wear and deformation.
A new spline coupling method detects fault propagation in hollow cylindrical splined shafts. A spline coupling is fabricated using an AE method with the spline section unrolled into a metal plate of the same thickness as the cylinder wall. In addition, the spline coupling is misaligned, which puts significant concentration on the spline teeth. This further accelerates the rate of fretting fatigue and wear.
A spline joint should be lubricated after 25 hours of operation. Frequent lubrication can increase maintenance costs and cause downtime. Moreover, the lubricant may retain abrasive particles at the interfaces. In some cases, lubricants can even cause misalignment, leading to premature failure. So, the lubrication of a spline coupling is vital in ensuring proper functioning of the shaft.
The design of a spline coupling can be optimized to enhance its wear resistance and reliability. Surface treatments, loads, and rotation affect the friction properties of a spline coupling. In addition, a finite element method was developed to predict wear of a floating spline coupling. This method is feasible and provides a reliable basis for predicting the wear and fatigue life of a spline coupling.
splineshaft

They can be machined using a slotting or shaping machine

Machines can be used to shape splined shafts in a variety of industries. They are useful in many applications, including gearboxes, braking systems, and axles. A slotted shaft can be manipulated in several ways, including hobbling, broaching, and slotting. In addition to shaping, splines are also useful in reducing bar diameter.
When using a slotting or shaping machine, the workpiece is held against a pedestal that has a uniform thickness. The machine is equipped with a stand column and limiting column (Figure 1), each positioned perpendicular to the upper surface of the pedestal. The limiting column axis is located on the same line as the stand column. During the slotting or shaping process, the tool is fed in and out until the desired space is achieved.
One process involves cutting splines into a shaft. Straddle milling, spline shaping, and spline cutting are 2 common processes used to create splined shafts. Straddle milling involves a fixed indexing fixture that holds the shaft steady, while rotating milling cutters cut the groove in the length of the shaft. Several passes are required to ensure uniformity throughout the spline.
Splines are a type of gear. The ridges or teeth on the drive shaft mesh with grooves in the mating piece. A splined shaft allows the transmission of torque to a mate piece while maximizing the power transfer. Splines are used in heavy vehicles, construction, agriculture, and massive earthmoving machinery. Splines are used in virtually every type of rotary motion, from axles to transmission systems. They also offer better fatigue life and reliability.
Slotting or shaping machines can also be used to shape splined shafts. Slotting machines are often used to machine splined shafts, because it is easier to make them with these machines. Using a slotting or shaping machine can result in splined shafts of different sizes. It is important to follow a set of spline standards to ensure your parts are manufactured to the highest standards.
A milling machine is another option for producing splined shafts. A spline shaft can be set up between 2 centers in an indexing fixture. Two side milling cutters are mounted on an arbor and a spacer and shims are inserted between them. The arbor and cutters are then mounted to a milling machine spindle. To make sure the cutters center themselves over the splined shaft, an adjustment must be made to the spindle of the machine.
The machining process is very different for internal and external splines. External splines can be broached, shaped, milled, or hobbed, while internal splines cannot. These machines use hard alloy, but they are not as good for internal splines. A machine with a slotting mechanism is necessary for these operations.

China Custom Professional wholesale durable high speed electric 4 * 2 truck     near me manufacturer China Custom Professional wholesale durable high speed electric 4 * 2 truck     near me manufacturer