91results about How to "Drive effort" patented technology

The invention relates to a seat type axle-driven bicycle which comprises a bicycle front wheel assembly, a rear wheel assembly including a rear hub and a flywheel, a frame, a middle axle driven mechanism including cranks and pedals, a rear axle driving mechanism and a backrest seat. The bicycle is characterized in that the middle axle driving mechanism is arranged between a middle axle bottom bracket shell and a front fork riser pipe, a lower beam of the front fork riser pipe between the front fork riser pipe of the frame and the middle axle bottom bracket shell is fixedly connected with a frame-axle middle joint, and the frame-axle middle joint supports a middle axle of the middle axle driven mechanism by a bearing, and the middle axle driving mechanism is connected with the rear wheel assembly by an axle-driven mechanism. The seat type axle-driven bicycle of the invention keeps the rear-wheel driven structure style, changes the chain-driven structure into axle-driven one and improves the drive efficiency. At the same time, the improved seat can be adjusted not only in the vertical direction but also in the anterior-posterior direction, so that a rider can comfortably rides on the seat against the seat back, thereby thoroughly preventing critical organs at the crotch of people from being hurt. Besides, the invention has the advantages of labor saving for driving and nimble, smooth and safe operation and is comfortable to ride and flexible to steer.

The invention relates to a device for completely moving a railway turnout. The device is used for thoroughly solving the problems of the conventional railway turnout replacing method that a turnout rail jack, a rail car and a rail crane are used to work together, the cost is high, the transportation resource is occupied during the running of the car, much blockade time is required for eliminating fault during the replacing process, large manpower and material resources are required and the construction process is unsafe. A slide rail is utilized to completely move a pre-paved turnout to a to-be-replacing place. A slide rail is paved between two adjacent turnout sleepers (preferably, two turnout sleepers with same length) within a certain length scope of the pre-paved turnout. The device is characterized by comprising at least 5-15 sets of moving units; two turnout replacing trolleys are arranged for each set of moving unit; the turnout replacing trolleys are respectively arranged on the slide rails at two ends of the two adjacent turnout sleepers (preferably, two turnout sleepers with same length) of the pre-paved turnout; and each of the turnout replacing trolleys is composed of a lifting device, a lateral moving pulley and a longitudinal adjusting pulley. The device provided by the invention is economical, safe, convenient and quick.

The invention relates to the field of gauze production equipment, in particular to gauze tailoring and supporting equipment with positioning and guiding functions. The equipment comprises a supportingstructure, a cleaning structure, a driving structure, a storage box, a height adjusting structure, guiding structures, a positioning structure and an air supply structure; four guiding structures arepairwise arranged on the height adjusting structure and the storage box symmetrically, so that the distances between the guiding structures on the height adjusting structure and the guiding structures on the storage box are conveniently adjusted, and gauzes with different thicknesses are conveniently stretched and guided; the driving structure is connected to the two guiding structures on the storage box, so that the rotating directions of the two guiding structures on the storage box are opposite, the two guiding structures are driven to flatly pave the gauzes to two sides, and the gauze tailoring efficiency and quality are greatly improved; the driving structure abuts against the air supply structure, and the air supply structure is connected to the positioning structure, so that wastechips are effectively prevented from bonding on the gauzes; and meanwhile, through arrangement of the positioning structure, the tailoring precision is higher.

The invention discloses an on-line monitoring system for quality control of mining sand and gravel aggregates, comprising a main controller, a server, and an executing mechanism. A screening device fixed on the frame body; the crushing device includes a crushing barrel fixed on the frame body, a backing plate fixed on the inner wall of the crushing barrel, a squeezing plate whose upper end rotates and is arranged on the crushing barrel, and one end rotates A first rotating rod set on the extrusion plate, a second rotating rod set on the inner wall of the crushing barrel at one end, and a connecting rod at the other end of the first rotating rod and the other end of the second rotating rod respectively rotated at both ends, The first rotating shaft which is rotatably arranged on the connecting rod, and the driving shaft which is deviated from the axis of the first rotating shaft and is fixedly arranged on the first rotating shaft and is rotatably arranged on the crushing barrel at both ends.

The invention discloses a pressure-balance valve with closed frontal end and the working method. The valve comprises a valve core casing with inlet and outlet; valve core sliding in the valve core casing, which comprises base body, frontal sealing chip on the front of base body, drainage channel, by which frontal and back ends of valve core is connected and seal gasket closing the drainage channel, outlet closure formed by frontal sealing chip and seal gasket matched; a power device and a driving device. The closed process is that after drainage channel is closed valve core slides ahead to close the outlet and the connecting process is that after drainage channel is opened valve core slides backward to connect inlet and outlet. Thereout, driving force for opening and closing valve in the invention is small.