Small picture > 1. Overview The roller support is a special transmission equipment used in the construction of long-distance oil and gas pipeline crossings to realize the back-up of steel pipes. This lightweight roller frame is used to transport steel pipes with a diameter of less than 1,000. When the pipe diameter is smaller than that, it can be used alone. When the pipe diameter is larger than that, it can be used in conjunction with the heavy-duty roller support.
2: Structural Overview and Function
: Structure
The mechanical structure of the roller frame is as shown in the figure. It mainly consists of the floating roller component (), the base component (), the gland () and Grease nipple () consists of.
: Rotating shaft: Main support beam: Wheel axle: Round nut: Tapered roller bearing ()
: Bearing sealing cover: Support frame: Cross beam: Roller: Lifting eye screw
During use, If the roller needs to be installed or replaced, please lift the roller and the axle out of the support frame, loosen the round nut and the bearing sealing cover, take the axle out of the roller, install the bearing in the new roller, and install the axle into the bearing. , use a round nut to tighten the bearing. When installing, ensure that the round nut has a certain pre-tightening force on the bearing to ensure that the roller rotates easily on the axle. Inject appropriate grease according to the ambient temperature of use. After assembly, install the rollers together with the rollers into the support frame.
Three: Main technical parameters
Model:
Adaptable pipe diameter:
Single wheel rated load-bearing load:
Overall machine weight: light and heavy
Roller material: Steel core polyurethane coating
Four: Use, care and maintenance
Please read the instruction manual before using the equipment.
. Before using the equipment, please do the following:
. Check whether all parts and components are complete. If there are any missing parts, they need to be replaced immediately.
b. Check whether the added grease meets the specified requirements.
. Check whether the fasteners are loose. Check whether there are open welding parts in the structural welding parts. If there are open welding, etc., welding repairs need to be carried out immediately.
. Check whether the roller rotates flexibly and whether there are any defects such as degumming or cracking. If any, please replace it immediately.
: Lubrication
The light roller bracket is lubricated with grease. The lubrication parts are the bearings at both ends of each roller and the grease nipple at the rotating shaft. Use different greases according to different working environments.
:#General lithium-based grease (B) has good water resistance, mechanical stability, corrosion resistance and oxidation stability. It is suitable for lubrication of rolling bearings and other friction parts within the working temperature ~℃.
Low-temperature lithium-based grease is suitable for lubrication of bearings and other friction parts in cold areas. The operating temperature is: ℃ ~ ℃.
: Aviation grease, suitable for lubrication of bearings and other friction parts in extremely cold areas, operating temperature: ℃ ~ ℃.
Calculation of safety distance of roller frame:
Example: Steel pipe specification Ф (wall thickness.) Anti-corrosion
(dynamic load) (static load) coefficient
(dynamic load) tons* Coefficient of wheel * frame. tons
(The distance between the two roller racks is less than). tons. meters
(Special note: considering the weight of the anti-corrosion layer, the ground is undulating greatly, and the pipe erection has a large bend, it can be shortened appropriately Erection distance.)
Yongbang Shengda Company was founded in 2001. It is a technology-oriented production enterprise specializing in the production of high-performance polyurethane products and integrating science, industry and trade. It has offices in Beijing, Shanghai and Dongguan. Production plants have branches in Humen, Sanhe, Lanzhou, Baiyin and Urumqi. The company mainly represents the raw materials and technologies of German B, Br (), American DuPont and Japanese Mitsui and Mitsubishi. It has its own independent laboratory and scientific research team, more than ten Over the years, we have gained rich production and manufacturing experience, and we have always adhered to the consistent operations of research and development of polymer raw materials, mold making, prepolymer preparation, production technology, sales, and after-sales service. It has brewed good quality and reputation in the chemical market. It is a friendly cooperative unit of Northwest Chemical Industry Research Institute, Liming Chemical Industry Research Institute, Shanxi Chemical Industry Research Institute, and Beijing Chemical Industry Research Institute. It is a friendly cooperation unit of China Railway, Jiangnan Heavy Industry, China Shipbuilding Industry, and China Launch Vehicle. Technology Research Institute, China Petroleum Pipeline Bureau Scientific Research Institute and other large state-owned enterprises designated as outstanding suppliers. Our products are exported to Europe, the United States, Southeast Asia and other countries, and cooperate with Lincoln of the United States, Gulibao of Sweden, (China), wind power companies, Hitachi , Komatsu (China) Investment Company and other international large and medium-sized enterprises have established long-term friendly cooperative relations.
One product prepolymer is divided into four categories:
() series () series () series () series () series
Two elastomer products physical properties:
() super wear-resistant , self-lubricating () ultra-high rebound () high shock absorption () slow rebound, sound absorption () temperature resistance ℃ ~ ℃, smokeless combustion () Shore hardness ~ Shore () flame retardant and antistatic
Three microcellular foam products are divided into two categories:
() Bayer () Modification
Four product processes:
Normal pressure casting, vacuum casting, compression molding, transfer molding, rotation casting, centrifugal Casting Injection Molding Extrusion Molding
Five product categories:
Rods, plates, gears, sealing rings, pressure rollers, impressions, warning posts, mining screen plates, wear-resistant guns, chemical fiber cutting Rollers, wear-resistant bushings, stamping die springs, flame-retardant and antistatic rubber rollers, marine hose protectors, shield machine thrust shoe plates, two-wing revolving door rubber wheels, subway system telescopic doors and slap doors, cement plant thermal power plants Processing and customization of polyurethane standard parts and special-shaped parts such as cleaners and specifications, load-bearing high-quality mechanical wheels, etc.
Six company concepts:
Products are the most powerful weapons in market competition, and product quality is the life of an enterprise. It is the foundation for an enterprise to be based on business. We strive for excellence in our products, so we have outstanding performance!
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