The pulley is a peripheral groove around the axis of rotation to ferry. By around a central shaft rotating fluted disc and across the disk soft cable (rope, tape, wire ropes, chains, etc.) can be around the center axis of rotation of the simple machines called pulley.
Photo of our Sheave:
Brief introduction
In mechanics, a typical pulley (pulley) is a round wheel that can rotate around the center shaft. A groove is arranged on the circumference of the round wheel, the rope is wound on the groove, and the two ends of the rope are forced to be either end of the rope, and the friction force between the rope and the round wheel can cause the circle to be drawn.
The wheel rotates around the center shaft. Pulley is actually a deformation, can turn the lever. Pulley is the main function of the traction load, change the direction of the application, transmission power, etc.. A machine which is composed of a plurality of wheels is called a "pulley block" or "a compound pulley". The mechanical interests of the pulley block are larger, and can lead to a heavier load. The pulley can also be a component of a chain drive or a belt drive, which transfers power from one rotating shaft to another.
According to whether the position of the central shaft of the pulley can be moved, the pulley can be divided into the fixed pulley and the movable pulley, the central axis of the fixed pulley is fixed, and the central axis of the movable pulley can be moved, each of which has the advantages and disadvantages. And the fixed pulley and the movable pulley are assembled together to form a pulley block, the pulley group is not only labor saving, but also can change the direction of the force.
Pulley in junior high school physics teaching in the form of knowledge, the direction of force requirements, rope mobile terminal distance, acting as an answer for solving the problem.
Essential information
Classification and number
The fixed pulley, the movable pulley, the pulley block (or is divided into the single pulley, the double pulley, the three pulley, the four pulley and so on many wheels and so on many kinds).
Texture of material
Wooden pulley, steel pulley and engineering plastic pulley, can be used according to the actual requirements of a variety of materials.
Effect
Pulling load, changing the direction of the application of force, transmission power, etc..
Connection method
Hook type, chain type, round type, ring type material and chain type, inclined type etc..
Dimensions and materials
A small size pulley (D<350mm) under load is generally made of the pulley, the use of 15,
Q235 or cast iron (e.g. HT200).
The pulley large load using ductile iron or cast steel (such as ZG270-500), a structure with ribs and holes or spoked
General steel and steel plate welded structure for large scale pulley
Sheave Wire Rope Sheave,Cable Sheave,Chain Sheave,Sheave Block Unisite Group Ltd. , http://www.unisitemarine.com
Furi Electronics raised 650 million "blood" to issue additional issuance plan
Furi Electronics disclosed the non-public offering plan on the evening of March 10, which is intended to be 8.65 yuan/share. The non-public offering of shares does not exceed 75.55 million shares. The raised funds are not more than 650 million yuan. After deducting the issuance expenses, 460 million yuan is used. Repayment of loans, 190 million yuan to supplement working capital. The company's stock resumed trading on March 11. The company plans to issue 75.55 million shares to a number of individuals, including the indirect controlling shareholder Fujian Information Group, raising about 650 million yuan, all of which will be used to supplement liquidity or repay borrowings. The price of the additional issuance of Furi Electronics is set at 8.65 yuan / share. Among them, the Fujian Provincial Information Group under the Fujian Provincial State-owned Assets Supervision and Administration Commission plans to subscribe for 8.75 million shares in cash of 75.69 million yuan. In addition, Fujian New Generation Information Technology Venture Capital Limited Partnership, Fuzhou Xinghe Investment Management Co., Ltd., Ping An Dahua Fund to set up Ping An Dahua Yongzhi No. 1 specific customer asset management plan, Wang Minhua, Hu Hongxiang and other objects to subscribe for the remaining shares. Among them, the largest subscription is for the new generation of venture capital to subscribe for 22 million shares, natural person Wang Minhua subscribed for 17.3 million shares, and Yongzhi No. 1 and natural person Hu Hongxiang subscribed for 11.5 million shares respectively. According to the plan, the new generation of venture capital has a total investment of 401 million yuan from 37 partners. Fujian Xingzheng Venture Capital Co., Ltd. is its general partner, accounting for 12.47. Among the remaining LPs, Fujian Investment and Development Group Co., Ltd. and Luxi Xinghang State-owned Assets Investment Management Co., Ltd. accounted for a high proportion, and the capital contributions were 100 million yuan and 50 million yuan respectively, accounting for 24.94 and 12.47. The remaining LPs accounted for between 1 and 4. The 460 million yuan of the funds raised will be used to repay the loan, and the remaining 194 million will be used to supplement the working capital.