tailieunhanh - Five Hundred and Seven Mechanical Movements Episode 10

Tham khảo tài liệu 'five hundred and seven mechanical movements episode 10', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Mechanical Movements. 85 340. Another parallel motion. Beam D c gỉne. The cylinder has trunnions at its with joggling pillar-support B F which vi- upper end and swings like a pendulum brates from the center t. The piston-rod The crank-shaft is below and the piston- is connected at c. The radius-bar E A produces the parallel motion. 341. Grasshopper beam engine. The beam is attached at one end to a rocking-pillar A and the shaft arranged as near to the cylinder as the crank will work. B is the radius-bar of the parallel motion. 342. Old-fashioned single-acting beam pumping engine on the atmospheric principle with chain connection between piston-rod and a segment at end of beam. The cylinder is open at top. Very low pressure steam is admitted below piston and the weight of pump-rod etc. at the other end of beam helps to raise piston. Steam is then condensed by injection and a vacuum thus produced below piston which is then forced down by atmospheric pressure thereby drawing up pump-rod. 343. Parallel motion for upright engine. A A are radius-rods connected at one end with the framing and at the other with a vibrating piece on top of piston-rod. 344. Oscillating engine. The cylinder has trunnions at the middle of its length working in fixed bearings and the piston-rod is connected directly with the crank and no guides are used. 345. Inverted oscillating or pendulum cn- rod connected directly with crank. j . ị 346. Table engine. The cylinder is fixed on a table-like base. The piston-rod has a cross-head working in straight slotted guides fixed on top of cylinder and is con- nected by two side connecting-rods with two parallel cranks on shaft under the table. 347. Section of disk engine. Disk piston 1 seen edgewise has a motion substantially like a coin when it first falls after being spun in the air. The cylinder-heads are cones. The piston-rod is made with a ball to which the disk is attached said ball working in concentric seats in cylinder- heads and the left-hand .

TỪ KHÓA LIÊN QUAN
TÀI LIỆU MỚI ĐĂNG
16    81    0    09-12-2022
299    90    1    09-12-2022
8    93    1    09-12-2022
4    83    0    09-12-2022
Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.