Product Description

  Belt Conveyor and Drive Pulley Conveyor Belt

 

Product Introduction
The belt conveyor has the advantages of large conveying capacity, simple structure, convenient maintenance and standardization of components. It can be transported in a single unit according to the requirements of the transportation process. Multiple belt conveyors consist of or are combined with other conveyors to form horizontal or inclined conveyor systems to meet the needs of different layouts.

Our Advantages
 

1. Belt conveyor is advanced and simple in structure and easy to maintain.

2. Its transfer capacity is high, transfer distance is long.

3. Widely used in mining, metallurgical and coal industry to transfer sandy or lump material, or packaged material.

4. In many situation, it is a very important component of nonstandard machinery.

5.We have various types of hopper belt conveyor, such as 400, 500, 650, 800, 1000, 1200 etc.
 

Product Parameters

Touch roll form	Belt speed (m/s)	Belt width(mm)
		500	650	800	1000	1200	1400
		Capacity(t/h)
Groove touch roll	0.8	78	104	/	/	/	/
	1.0	97	131	278	435	655	891
	1.25	122	206	318	544	819	1115
	1.6	156	264	445	696	1048	1427
	2.0	191	323	646	853	1284	1748
	2.5	232	391	551	1033	1556	2118
	3.15	/	/	824	1233	1858	2528
	4.0	/	/	/	/	2202	2995
Parallel touch roll	0.8	41	67	118	/	/	/
	1.0	52	88	147	230	345	469
	1.25	66	110	184	288	432	588
	1.6	84	142	236	368	558	753
	2.0	103	174	289	451	677	922
	2.5	125	211	350	546	821	1117

  

Working Principle

A material transfer process is formed between the initial feed point and the final discharge point on a certain conveying line. It can not only carry out the transportation of scattered materials, but also carry out the transportation of finished goods. In addition to pure material transportation, it can also cooperate with the requirements of the technological process in the production process of various industrial enterprises to form a rhythmical flow operation transportation line.

Company Information

XKJ Machinery has won many honors through outstanding products and advanced technology and we always see product quality as life and customers as God. Customers mean everything and we will always carry out the quality principle of being responsible for every procedure, every product and every customer and serve every customer with heart and soul. Everything we do, we do it for your benefit and we deeply believe that our sincerity will be finally paid back.

 

Why choose us ?

1.We are real manufacture factory ( not dealer)

All machineries from ZheJiang HangZhou Mining Machinery Manufactory are made by ourselves, with lower price, good quality and assured full after service. So please buy machine from factory.

2. Our equipment with senior engineers for research and development.

3. We’d like to recommend a suitable type for you and send you a best quotation. If you are new for this business, we will help you.

Service

Before-sale services:
We CZPT customers to choose the best and applicable device; provide the advanced, energy-saving and practical technological processes, as well as we are responsible for the plHangZhou and design of the site.

Sale services:

Products must be inspected strictly before being sold; customers are invited to simulate and test machine on-the-spot and raise objections; in accordance with the agreements stipulated in the contract, we will arrange delivery.

After-sale services:
Our Company will send professional engineers to CZPT device installation, debug and train operators until customers are fully satisfied. Moreover, we will design and produce machines according to the special requirements of customers.

Solemn Promise:

The quality guarantee period of machines is 1 year except the wearing parts.

 

Packing

Normally the machines are taken apart before delivery and are packed by suitable packing ways, the packing ways are as below: nude packing, bundle packing, grass rope packing, water proof packing, wooden pallets packing, wooden box or carton box packing.

FAQ

Q: How about the quality of your products?

A: Our machines are manufactured strictly according to national and international standards, and we take a test on each equipment before delivery. You can also use Trade Assurance by Alibaba for product quality protection, on-time shipment protection and payment protection.

Q: How about the price?

A: As a manufactory, we can give you lower price than trade companies. Besides, customers from Alibaba can get a discount.

Q: Do you provide after-sale service?

A: Yes. The warranty period of our machines is 1 year, and we have a professional after-sale service team to promptly and thoroughly solve your problems.

 

Q: Do you provide equipment operation training?

A: Yes. We can send professional engineers to the working site for equipment installation, adjustment, and operation training.

Q: Can you test our samples?

A: Yes. You can send your samples to us for test and analysis.

Q: Can we visit your factory?

A: Yes. You can visit our factory anytime you want.

 

Worm Shafts and Gearboxes

If you have a gearbox, you may be wondering what the best Worm Shaft is for your application. There are several things to consider, including the Concave shape, Number of threads, and Lubrication. This article will explain each factor and help you choose the right Worm Shaft for your gearbox. There are many options available on the market, so don’t hesitate to shop around. If you are new to the world of gearboxes, read on to learn more about this popular type of gearbox.

Concave shape

The geometry of a worm gear varies considerably depending on its manufacturer and its intended use. Early worms had a basic profile that resembled a screw thread and could be chased on a lathe. Later, tools with a straight sided g-angle were developed to produce threads that were parallel to the worm’s axis. Grinding was also developed to improve the finish of worm threads and minimize distortions that occur with hardening.
To select a worm with the proper geometry, the diameter of the worm gear must be in the same unit as the worm’s shaft. Once the basic profile of the worm gear is determined, the worm gear teeth can be specified. The calculation also involves an angle for the worm shaft to prevent it from overheating. The angle of the worm shaft should be as close to the vertical axis as possible.
Double-enveloping worm gears, on the other hand, do not have a throat around the worm. They are helical gears with a straight worm shaft. Since the teeth of the worm are in contact with each other, they produce significant friction. Unlike double-enveloping worm gears, non-throated worm gears are more compact and can handle smaller loads. They are also easy to manufacture.
The worm gears of different manufacturers offer many advantages. For instance, worm gears are 1 of the most efficient ways to increase torque, while lower-quality materials like bronze are difficult to lubricate. Worm gears also have a low failure rate because they allow for considerable leeway in the design process. Despite the differences between the 2 standards, the overall performance of a worm gear system is the same.
The cone-shaped worm is another type. This is a technological scheme that combines a straight worm shaft with a concave arc. The concave arc is also a useful utility model. Worms with this shape have more than 3 contacts at the same time, which means they can reduce a large diameter without excessive wear. It is also a relatively low-cost model.

Thread pattern

A good worm gear requires a perfect thread pattern. There are a few key parameters that determine how good a thread pattern is. Firstly, the threading pattern must be ACME-threaded. If this is not possible, the thread must be made with straight sides. Then, the linear pitch of the “worm” must be the same as the circular pitch of the corresponding worm wheel. In simple terms, this means the pitch of the “worm” is the same as the circular pitch of the worm wheel. A quick-change gearbox is usually used with this type of worm gear. Alternatively, lead-screw change gears are used instead of a quick-change gear box. The pitch of a worm gear equals the helix angle of a screw.
A worm gear’s axial pitch must match the circular pitch of a gear with a higher axial pitch. The circular pitch is the distance between the points of teeth on the worm, while the axial pitch is the distance between the worm’s teeth. Another factor is the worm’s lead angle. The angle between the pitch cylinder and worm shaft is called its lead angle, and the higher the lead angle, the greater the efficiency of a gear.
Worm gear tooth geometry varies depending on the manufacturer and intended use. In early worms, threading resembled the thread on a screw, and was easily chased using a lathe. Later, grinding improved worm thread finishes and minimized distortions from hardening. As a result, today, most worm gears have a thread pattern corresponding to their size. When selecting a worm gear, make sure to check for the number of threads before purchasing it.
A worm gear’s threading is crucial in its operation. Worm teeth are typically cylindrical, and are arranged in a pattern similar to screw or nut threads. Worm teeth are often formed on an axis of perpendicular compared to their parallel counterparts. Because of this, they have greater torque than their spur gear counterparts. Moreover, the gearing has a low output speed and high torque.

Number of threads

Different types of worm gears use different numbers of threads on their planetary gears. A single threaded worm gear should not be used with a double-threaded worm. A single-threaded worm gear should be used with a single-threaded worm. Single-threaded worms are more effective for speed reduction than double-threaded ones.
The number of threads on a worm’s shaft is a ratio that compares the pitch diameter and number of teeth. In general, worms have 1,2,4 threads, but some have three, five, or six. Counting thread starts can help you determine the number of threads on a worm. A single-threaded worm has fewer threads than a multiple-threaded worm, but a multi-threaded worm will have more threads than a mono-threaded planetary gear.
To measure the number of threads on a worm shaft, a small fixture with 2 ground faces is used. The worm must be removed from its housing so that the finished thread area can be inspected. After identifying the number of threads, simple measurements of the worm’s outside diameter and thread depth are taken. Once the worm has been accounted for, a cast of the tooth space is made using epoxy material. The casting is moulded between the 2 tooth flanks. The V-block fixture rests against the outside diameter of the worm.
The circular pitch of a worm and its axial pitch must match the circular pitch of a larger gear. The axial pitch of a worm is the distance between the points of the teeth on a worm’s pitch diameter. The lead of a thread is the distance a thread travels in 1 revolution. The lead angle is the tangent to the helix of a thread on a cylinder.
The worm gear’s speed transmission ratio is based on the number of threads. A worm gear with a high ratio can be easily reduced in 1 step by using a set of worm gears. However, a multi-thread worm will have more than 2 threads. The worm gear is also more efficient than single-threaded gears. And a worm gear with a high ratio will allow the motor to be used in a variety of applications.

Lubrication

The lubrication of a worm gear is particularly challenging, due to its friction and high sliding contact force. Fortunately, there are several options for lubricants, such as compounded oils. Compounded oils are mineral-based lubricants formulated with 10 percent or more fatty acid, rust and oxidation inhibitors, and other additives. This combination results in improved lubricity, reduced friction, and lower sliding wear.
When choosing a lubricant for a worm shaft, make sure the product’s viscosity is right for the type of gearing used. A low viscosity will make the gearbox difficult to actuate and rotate. Worm gears also undergo a greater sliding motion than rolling motion, so grease must be able to migrate evenly throughout the gearbox. Repeated sliding motions will push the grease away from the contact zone.
Another consideration is the backlash of the gears. Worm gears have high gear ratios, sometimes 300:1. This is important for power applications, but is at the same time inefficient. Worm gears can generate heat during the sliding motion, so a high-quality lubricant is essential. This type of lubricant will reduce heat and ensure optimal performance. The following tips will help you choose the right lubricant for your worm gear.
In low-speed applications, a grease lubricant may be sufficient. In higher-speed applications, it’s best to apply a synthetic lubricant to prevent premature failure and tooth wear. In both cases, lubricant choice depends on the tangential and rotational speed. It is important to follow manufacturer’s guidelines regarding the choice of lubricant. But remember that lubricant choice is not an easy task.