China Best Sales Swl 2.5 1A – 500mm Worm Screw Jack Lift Turbine Hand-Operated with Free Design Custom

Product Description


Merchandise Description

1, The gear is made of higher-energy minimal-carbon alloy metal by carburizing and quenching. The hardness of

the tooth surface is up to HRC58-62. The gears are groun d grinding technologies with substantial precision and
excellent speak to.
2, Substantial transmission efficiency: single phase is higher than ninety six.5%, double level is increased than 93%, 3rd
stage is better than 90%.
three, Easy operation and lower noise.
four, Little dimension, light excess weight, long service lifestyle and large carrying potential.
five, Easy to disassemble and straightforward to put in.

Expressed Method Of Model


Solution Parameters



How to Choose a Screw Jack? Some concerns you require answer pls.

Q1: The potential is to load ? KG (it means how numerous Kg or Tons the screw jack need to raise or drop?)

The stroke is ? mm (it signifies the screw shaft size, this kind of as 500mm)

The lifting velocity is ? mm/second (it means how a lot time you want to use to end the stroke?
This sort of as I want to use twenty seconds to end the 500mm stroke then can come out the pace is 25mm/s )

Screw jack SWL2.5-a hundred and twenty performance parameters table as the beneath:
Q2: Which the screw prime you need? Response: I need (A B C D E F).
Q3: Handbook sort (Hand wheel driven) or electric powered motor pushed kind? Response: I require variety.
This autumn: Screw motion (screw travelling up and down when functioning) or Nut movement (the nut travelling up
and down when doing work)? Upright or Inverted? Response: I need to have (A B E F)

Our Advantages



Packaging & Shipping and delivery


Firm Profile

Xihu (West Lake) Transmission Tools Co., Ltd. positioned HangZhou city, ZHangZhoug, as 1 specialist
producer and exporter of cycloidal pin wheel reducer,worm reducer, gear reducer, gearbox ,
AC motor and relative spare parts, owns prosperous expertise in this line for several years.

We are 1 direct factory, with sophisticated creation tools, the strong improvement crew and
creating potential to offer quality merchandise for consumers.

Our products broadly served to a variety of industries of Metallurgy, Substances, textile,medicine,wooden
and so on. Principal marketplaces: China, Africa,Australia,Vietnam, Turkey,Japan, Korea, Philippines…

Welcome to question us any inquiries, great provide always for you for lengthy phrase business.


Q: Are you investing firm or manufacturer?
A: We are manufacturing facility.

Q: How long is your shipping and delivery time?
A: Typically it is 5-10 days if the products are in stock. or it is fifteen-twenty days if the merchandise are not in stock.

Q: Can we purchase 1 personal computer of each and every product for top quality testing?
A: Indeed, we are happy to accept demo buy for quality tests.

Q:How to decide on a gearbox which fulfills your need?
A:You can refer to our catalogue to pick the gearbox or we can help to choose when you supply
the complex details of required output torque, output pace and motor parameter and so forth.

Q: What details shall we give before inserting a purchase purchase?
A:a) Kind of the gearbox, ratio, input and output type, input flange, mounting situation, and motor informationetc.
b) Housing colour.
c) Acquire quantity.
d) Other specific demands.

How to Determine the Diameter of a Worm Equipment

worm shaft
In this post, we will examine the characteristics of the Duplex, One-throated, and Undercut worm gears and the evaluation of worm shaft deflection. In addition to that, we will discover how the diameter of a worm gear is calculated. If you have any doubt about the perform of a worm gear, you can refer to the table beneath. Also, preserve in thoughts that a worm gear has a number of crucial parameters which establish its working.

Duplex worm equipment

A duplex worm gear set is distinguished by its potential to maintain specific angles and large gear ratios. The backlash of the gearing can be readjusted a number of instances. The axial place of the worm shaft can be established by changing screws on the housing cover. This function allows for low backlash engagement of the worm tooth pitch with the worm gear. This characteristic is particularly advantageous when backlash is a critical issue when deciding on gears.
The standard worm equipment shaft calls for significantly less lubrication than its dual counterpart. Worm gears are tough to lubricate due to the fact they are sliding instead than rotating. They also have fewer transferring areas and much less factors of failure. The disadvantage of a worm gear is that you can not reverse the course of power owing to friction amongst the worm and the wheel. Because of this, they are very best employed in machines that function at minimal speeds.
Worm wheels have tooth that type a helix. This helix generates axial thrust forces, dependent on the hand of the helix and the course of rotation. To take care of these forces, the worms should be mounted securely making use of dowel pins, phase shafts, and dowel pins. To avoid the worm from shifting, the worm wheel axis must be aligned with the heart of the worm wheel’s experience width.
The backlash of the CZPT duplex worm equipment is adjustable. By shifting the worm axially, the part of the worm with the desired tooth thickness is in speak to with the wheel. As a end result, the backlash is adjustable. Worm gears are an outstanding decision for rotary tables, large-precision reversing applications, and ultra-minimal-backlash gearboxes. Axial shift backlash is a main gain of duplex worm gears, and this attribute interprets into a simple and rapidly assembly method.
When selecting a gear set, the size and lubrication procedure will be crucial. If you’re not watchful, you may stop up with a destroyed equipment or one with poor backlash. Thankfully, there are some basic ways to maintain the proper tooth speak to and backlash of your worm gears, guaranteeing lengthy-expression reliability and efficiency. As with any gear established, appropriate lubrication will ensure your worm gears final for several years to arrive.
worm shaft

One-throated worm gear

Worm gears mesh by sliding and rolling motions, but sliding speak to dominates at large reduction ratios. Worm gears’ performance is limited by the friction and warmth created throughout sliding, so lubrication is necessary to preserve best effectiveness. The worm and gear are usually manufactured of dissimilar metals, this kind of as phosphor-bronze or hardened steel. MC nylon, a artificial engineering plastic, is frequently employed for the shaft.
Worm gears are extremely successful in transmission of power and are adaptable to various kinds of machinery and devices. Their minimal output speed and high torque make them a common selection for electrical power transmission. A single-throated worm equipment is easy to assemble and lock. A double-throated worm gear needs two shafts, a single for each and every worm gear. Both types are successful in higher-torque purposes.
Worm gears are widely utilised in power transmission applications simply because of their reduced velocity and compact layout. A numerical product was produced to estimate the quasi-static load sharing between gears and mating surfaces. The affect coefficient method allows fast computing of the deformation of the equipment surface area and nearby speak to of the mating surfaces. The resultant investigation displays that a single-throated worm equipment can decrease the amount of strength needed to drive an electric motor.
In addition to the put on brought on by friction, a worm wheel can knowledge further wear. Simply because the worm wheel is softer than the worm, most of the put on occurs on the wheel. In simple fact, the amount of teeth on a worm wheel must not match its thread count. A solitary-throated worm equipment shaft can improve the efficiency of a device by as a lot as 35%. In addition, it can decrease the value of operating.
A worm equipment is utilised when the diametrical pitch of the worm wheel and worm equipment are the very same. If the diametrical pitch of each gears is the very same, the two worms will mesh properly. In addition, the worm wheel and worm will be hooked up to each other with a established screw. This screw is inserted into the hub and then secured with a locknut.

Undercut worm gear

Undercut worm gears have a cylindrical shaft, and their enamel are shaped in an evolution-like sample. Worms are manufactured of a hardened cemented metallic, 16MnCr5. The variety of gear tooth is decided by the pressure angle at the zero gearing correction. The tooth are convex in normal and centre-line sections. The diameter of the worm is determined by the worm’s tangential profile, d1. Undercut worm gears are utilized when the amount of teeth in the cylinder is massive, and when the shaft is rigid adequate to resist extreme load.
The center-line length of the worm gears is the length from the worm centre to the outer diameter. This distance influences the worm’s deflection and its basic safety. Enter a distinct price for the bearing distance. Then, the computer software proposes a range of ideal solutions based on the quantity of tooth and the module. The table of remedies includes various options, and the chosen variant is transferred to the main calculation.
A strain-angle-angle-compensated worm can be made using single-pointed lathe resources or finish mills. The worm’s diameter and depth are affected by the cutter utilised. In addition, the diameter of the grinding wheel determines the profile of the worm. If the worm is cut as well deep, it will end result in undercutting. Even with the undercutting risk, the layout of worm gearing is flexible and permits substantial flexibility.
The reduction ratio of a worm gear is huge. With only a tiny work, the worm gear can significantly reduce velocity and torque. In contrast, traditional equipment sets want to make numerous reductions to get the exact same reduction stage. Worm gears also have many negatives. Worm gears can’t reverse the direction of power due to the fact the friction amongst the worm and the wheel can make this unattainable. The worm gear can’t reverse the course of electrical power, but the worm moves from one route to another.
The approach of undercutting is closely connected to the profile of the worm. The worm’s profile will differ depending on the worm diameter, lead angle, and grinding wheel diameter. The worm’s profile will alter if the producing method has removed substance from the tooth base. A little undercut reduces tooth strength and decreases get in touch with. For smaller sized gears, a minimum of fourteen-1/2degPA gears must be utilized.
worm shaft

Investigation of worm shaft deflection

To analyze the worm shaft deflection, we first derived its optimum deflection benefit. The deflection is calculated employing the Euler-Bernoulli technique and Timoshenko shear deformation. Then, we calculated the instant of inertia and the area of the transverse segment using CAD software program. In our evaluation, we employed the final results of the test to evaluate the ensuing parameters with the theoretical ones.
We can use the resulting centre-line distance and worm gear tooth profiles to estimate the essential worm deflection. Making use of these values, we can use the worm equipment deflection investigation to make certain the correct bearing dimensions and worm equipment tooth. When we have these values, we can transfer them to the principal calculation. Then, we can determine the worm deflection and its safety. Then, we enter the values into the acceptable tables, and the resulting solutions are routinely transferred into the major calculation. However, we have to keep in mind that the deflection benefit will not be regarded as secure if it is bigger than the worm gear’s outer diameter.
We use a 4-stage method for investigating worm shaft deflection. We very first implement the finite element approach to compute the deflection and compare the simulation final results with the experimentally examined worm shafts. Lastly, we complete parameter research with fifteen worm gear toothings with no contemplating the shaft geometry. This step is the very first of four levels of the investigation. As soon as we have calculated the deflection, we can use the simulation benefits to determine the parameters necessary to enhance the style.
Using a calculation technique to calculate worm shaft deflection, we can figure out the efficiency of worm gears. There are several parameters to enhance gearing performance, which includes content and geometry, and lubricant. In addition, we can lessen the bearing losses, which are brought on by bearing failures. We can also discover the supporting approach for the worm shafts in the possibilities menu. The theoretical segment supplies further data.

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