Product Description

We Have Following Advantages :

1. Self-design and self-produce
2. Factory direct price 
3. Keep product upgrading to meet market demand
4. According to customer's requirements to control costs and also satisfy the design requirements.
5. Small orders welcome
6. Quick shipping within 10 days 

Products Specification
 

Item No.	CS07
DC voltage	24V
Battery	1.5-4.0Ah
No load speed	6m/s
Bar Length	6" bar and chain
Chain Type	1/4"(6.35)
Max. Cutting Length	100mm
Qty/Ctn	6pcs
Carton Size	365mm*330mm*285mm
N.W./G.W.	11/12kgs
20'	5200pcs
40'	11600pcs
40'HC	13600pcs

MAIN FEATURES

• High Quality and Efficient - This chain saw adapt high-quality CZPT chain which has undergone a deep quenching process ensures smooth cutting. The wood tooth design can make the chain saw stuck on the branch, cutting efficiency is higher and faster.
• Easy Operation - This mini chainsaw weight just about 0.7kg and a total length of only 33cm (13inch). Most of the people can easily control and use it, and will not be tired from being too heavy.
• Xihu (West Lake) Dis.nized Design - The integrated CZPT plate dissipates heat quickly and is very resistant to falling and abrasion. With non-slip handle design, the grip is very comfortable. The chain saw switch can adjust the speed according to the strength, and you can adjust the cutting speed you need according to the operating conditions.
• Efficient Cutting - Power Chain Saws takes about 10 seconds to cut a log with a diameter of 10cm (the specific value varies with the actual size and hardness of the wood). This electric saw is very suitable for trees branches pruning, gardening.Note that it is not suitable for sawing dry planks and wood that is too large
• Easy installation - Just install in a few steps. 1, Install the chain into the CZPT plate, then install them to chainsaw body. 2, Install the side cover and tighten the nut. 3, Use the wrench in the package to turn the screw to adjust the tightness. Just need 1 Minute for all Install.

Product Show

HangZhou daguo established in 2019, our factory is 1 of the most professional enterprises in China who specialize in developing and producing garden power tools, located in HangZhou, enjoying ease access to ZheJiang and HangZhou cities. We have domestic well-known power tool accessories suppliers, such as Xihu (West Lake) Dis.cheng, Gribo, has been maintaining a good long term relationship of cooperation. We gain an outstanding reputation for the sophisticated technology, skillful manufacture and excellent quality of the garden tools. With strong R&D capacity, full productive capacity, and OEM capacity, we are capable of providing customers with superior products and the best service!

Though we are a new power tool manufacturer, Daguo is now a first domestic 4" bar handled chain saw original design and supplier who has been gained state patent since 2571. Here we would like to introduce Mr. Kin, our technical director who graduated from the mechanical design major with a bachelor′s degree. He is particularly good at product appearance design, internal structure research, product practical performance and cost control.

In 2019, the 4-inch small chainsaw designed by KIN caused a big sensation in the current e-commerce environment and garden tools industry, and it is a hot seller and has been selling very well for long time. Many foreign trade companies want to come in as our appointed agents. At present, we also specialized in power tools, garden tools, such as pruning shears, mini chain saw, electrical trimmer and related in China for professional and DIY users worldwide. Here let us highlight 1 of our best selling products as following:

Now our factory has been already from 240 square meters to 1000 square meters, as well as the number of employees has increased from 10 to 40, also we have already passed CE/SGS. At the same time, we are adding more and more machinery and equipment, own close to million fixed assets. We have production capacity of 30 million sets yearly. Our enterprise has been chosen as an "first choice of handled chain saw in HangZhou China", and has several business partners in this industry.

    FAQ

• Customer Questions & Answers   
• Q:Are you manufacture?
• A:We are original self-design and self-produce.
•  
• Q: What's your MOQ?
• A:  Our MOQ is 1000 units per model for Gdago/OEM brand.
   
• Q: What's your payment terms?
• A: We could accept L/C sight, T/T and Paypal.
   
• Q: What's the delivery time?
• A: We could deliver the goods within 60 days after order confirmed.
•  
• Q: Is the price on this page your final price?
• A: The price on this page is only for your reference. We hope you can inquiry the bottom price based on your quantity. We also have promotion season and will give discount for new customer.
   
• Q: How can I get the sample?
• A:  Yes, we could provide sample and deliver with freight collected.

 

 

Calculating the Deflection of a Worm Shaft

In this article, we'll discuss how to calculate the deflection of a worm gear's worm shaft. We'll also discuss the characteristics of a worm gear, including its tooth forces. And we'll cover the important characteristics of a worm gear. Read on to learn more! Here are some things to consider before purchasing a worm gear. We hope you enjoy learning! After reading this article, you'll be well-equipped to choose a worm gear to match your needs.

Calculation of worm shaft deflection

The main goal of the calculations is to determine the deflection of a worm. Worms are used to turn gears and mechanical devices. This type of transmission uses a worm. The worm diameter and the number of teeth are inputted into the calculation gradually. Then, a table with proper solutions is shown on the screen. After completing the table, you can then move on to the main calculation. You can change the strength parameters as well.
The maximum worm shaft deflection is calculated using the finite element method (FEM). The model has many parameters, including the size of the elements and boundary conditions. The results from these simulations are compared to the corresponding analytical values to calculate the maximum deflection. The result is a table that displays the maximum worm shaft deflection. The tables can be downloaded below. You can also find more information about the different deflection formulas and their applications.
The calculation method used by DIN EN 10084 is based on the hardened cemented worm of 16MnCr5. Then, you can use DIN EN 10084 (CuSn12Ni2-C-GZ) and DIN EN 1982 (CuAl10Fe5Ne5-C-GZ). Then, you can enter the worm face width, either manually or using the auto-suggest option.
Common methods for the calculation of worm shaft deflection provide a good approximation of deflection but do not account for geometric modifications on the worm. While Norgauer's 2021 approach addresses these issues, it fails to account for the helical winding of the worm teeth and overestimates the stiffening effect of gearing. More sophisticated approaches are required for the efficient design of thin worm shafts.
Worm gears have a low noise and vibration compared to other types of mechanical devices. However, worm gears are often limited by the amount of wear that occurs on the softer worm wheel. Worm shaft deflection is a significant influencing factor for noise and wear. The calculation method for worm gear deflection is available in ISO/TR 14521, DIN 3996, and AGMA 6022.
The worm gear can be designed with a precise transmission ratio. The calculation involves dividing the transmission ratio between more stages in a gearbox. Power transmission input parameters affect the gearing properties, as well as the material of the worm/gear. To achieve a better efficiency, the worm/gear material should match the conditions that are to be experienced. The worm gear can be a self-locking transmission.
The worm gearbox contains several machine elements. The main contributors to the total power loss are the axial loads and bearing losses on the worm shaft. Hence, different bearing configurations are studied. One type includes locating/non-locating bearing arrangements. The other is tapered roller bearings. The worm gear drives are considered when locating versus non-locating bearings. The analysis of worm gear drives is also an investigation of the X-arrangement and four-point contact bearings.

Influence of tooth forces on bending stiffness of a worm gear

The bending stiffness of a worm gear is dependent on tooth forces. Tooth forces increase as the power density increases, but this also leads to increased worm shaft deflection. The resulting deflection can affect efficiency, wear load capacity, and NVH behavior. Continuous improvements in bronze materials, lubricants, and manufacturing quality have enabled worm gear manufacturers to produce increasingly high power densities.
Standardized calculation methods take into account the supporting effect of the toothing on the worm shaft. However, overhung worm gears are not included in the calculation. In addition, the toothing area is not taken into account unless the shaft is designed next to the worm gear. Similarly, the root diameter is treated as the equivalent bending diameter, but this ignores the supporting effect of the worm toothing.
A generalized formula is provided to estimate the STE contribution to vibratory excitation. The results are applicable to any gear with a meshing pattern. It is recommended that engineers test different meshing methods to obtain more accurate results. One way to test tooth-meshing surfaces is to use a finite element stress and mesh subprogram. This software will measure tooth-bending stresses under dynamic loads.
The effect of tooth-brushing and lubricant on bending stiffness can be achieved by increasing the pressure angle of the worm pair. This can reduce tooth bending stresses in the worm gear. A further method is to add a load-loaded tooth-contact analysis (CCTA). This is also used to analyze mismatched ZC1 worm drive. The results obtained with the technique have been widely applied to various types of gearing.
In this study, we found that the ring gear's bending stiffness is highly influenced by the teeth. The chamfered root of the ring gear is larger than the slot width. Thus, the ring gear's bending stiffness varies with its tooth width, which increases with the ring wall thickness. Furthermore, a variation in the ring wall thickness of the worm gear causes a greater deviation from the design specification.
To understand the impact of the teeth on the bending stiffness of a worm gear, it is important to know the root shape. Involute teeth are susceptible to bending stress and can break under extreme conditions. A tooth-breakage analysis can control this by determining the root shape and the bending stiffness. The optimization of the root shape directly on the final gear minimizes the bending stress in the involute teeth.
The influence of tooth forces on the bending stiffness of a worm gear was investigated using the CZPT Spiral Bevel Gear Test Facility. In this study, multiple teeth of a spiral bevel pinion were instrumented with strain gages and tested at speeds ranging from static to 14400 RPM. The tests were performed with power levels as high as 540 kW. The results obtained were compared with the analysis of a three-dimensional finite element model.

Characteristics of worm gears

Worm gears are unique types of gears. They feature a variety of characteristics and applications. This article will examine the characteristics and benefits of worm gears. Then, we'll examine the common applications of worm gears. Let's take a look! Before we dive in to worm gears, let's review their capabilities. Hopefully, you'll see how versatile these gears are.
A worm gear can achieve massive reduction ratios with little effort. By adding circumference to the wheel, the worm can greatly increase its torque and decrease its speed. Conventional gearsets require multiple reductions to achieve the same reduction ratio. Worm gears have fewer moving parts, so there are fewer places for failure. However, they can't reverse the direction of power. This is because the friction between the worm and wheel makes it impossible to move the worm backwards.
Worm gears are widely used in elevators, hoists, and lifts. They are particularly useful in applications where stopping speed is critical. They can be incorporated with smaller brakes to ensure safety, but shouldn't be relied upon as a primary braking system. Generally, they are self-locking, so they are a good choice for many applications. They also have many benefits, including increased efficiency and safety.
Worm gears are designed to achieve a specific reduction ratio. They are typically arranged between the input and output shafts of a motor and a load. The 2 shafts are often positioned at an angle that ensures proper alignment. Worm gear gears have a center spacing of a frame size. The center spacing of the gear and worm shaft determines the axial pitch. For instance, if the gearsets are set at a radial distance, a smaller outer diameter is necessary.
Worm gears' sliding contact reduces efficiency. But it also ensures quiet operation. The sliding action limits the efficiency of worm gears to 30% to 50%. A few techniques are introduced herein to minimize friction and to produce good entrance and exit gaps. You'll soon see why they're such a versatile choice for your needs! So, if you're considering purchasing a worm gear, make sure you read this article to learn more about its characteristics!
An embodiment of a worm gear is described in FIGS. 19 and 20. An alternate embodiment of the system uses a single motor and a single worm 153. The worm 153 turns a gear which drives an arm 152. The arm 152, in turn, moves the lens/mirr assembly 10 by varying the elevation angle. The motor control unit 114 then tracks the elevation angle of the lens/mirr assembly 10 in relation to the reference position.
The worm wheel and worm are both made of metal. However, the brass worm and wheel are made of brass, which is a yellow metal. Their lubricant selections are more flexible, but they're limited by additive restrictions due to their yellow metal. Plastic on metal worm gears are generally found in light load applications. The lubricant used depends on the type of plastic, as many types of plastics react to hydrocarbons found in regular lubricant. For this reason, you need a non-reactive lubricant.