41results about How to "Enough traction" patented technology

The invention relates to a counterweight free lift system, which includes a car lifted in a shaft, a drive device, a hoisting rope and a hoisting rope wheel, and a plurality of pulleys, and is characterized in that: the car is a split-typed structure and uses body weight and load weight of the car as the counterweight to realize up-and-down motion of the car by the hoisting rope, a plurality of pulley rooms and one of the winding modes, wherein, at least two pulleys are arranged fixedly at two sides and the middle part on the upper part of the car frame, at least one pulley is fixed on the upper part of the body, the pulleys and the hoisting rope wheel are reciprocally vertical and correspondingly arranged on the upper part or the lower part of the shaft, one end of the hoisting rope is fixed at the fixing position on the upper part of the shaft, after winding the pulleys fixed on the car frame and the body in sequence, the terminal of the hoisting rope is fixed at the fixing positionon the lower part of the shaft. The invention does not require counterweight, which is an ideal lift product with economy, energy saving and novel and unique design.

The invention belongs to the technical field of oil extraction devices for an oil field, and particularly relates to an intelligent oil sucking machine. The intelligent oil sucking machine comprises abase, a support frame, a guide wheel, a winding drum, a steel wire rope, an oil sucking pump and a motor, wherein a spiral groove for accommodating the steel wire rope is formed in the outer wall ofthe winding drum; the winding drum is in inclined arrangement; an included acute angle alpha formed between the axial line of the winding drum and the steel wire rope and the helix angle beta of the spiral groove meet a relationship that alpha=90 degree - beta; the winding drum structurally comprises a drum body, a driving shaft, a threaded support shaft and a shaft support frame; one end of the drum body is connected with a driving shaft through a spline; and the other end of the drum body is connected with the threaded support shaft through transmission screw threads. The intelligent oil sucking machine has the advantages that through the arrangement of the spiral groove with great thread pitches, the steel wire rope to be wound on the winding drum can be effectively prevented from beingin contact with the steel wire rope wound on the winding drum, so that the abrasion of the steel wire rope is reduced.

The invention relates to an auxiliary top traveling mechanism, in particular to an auxiliary top traveling mechanism which increases the traction of a tunneling machine and solves the problems of the insufficient traction and stability and the like of the tunneling machine during tunneling a steep tunnel. The mechanism is provided with an auxiliary top traveling part and a connection cushioning device, wherein the auxiliary top traveling part is fixed to the connection cushioning device, and the auxiliary top traveling part is fixedly connected on the tunneling machine by the connection cushioning device. When the tunneling machine works in a steep tunnel, since the traveling part can not provide sufficient traction and the tunneling machine can not work in the steep tunnel, the auxiliarytop traveling mechanism is required to provide the traction to enable the tunneling machine to complete the tunneling of the steep tunnel. When the tunneling machine is in the progress of tunneling the steep tunnel, the top traveling mechanism can be attached to the top plate of the tunnel, so that the tunneling machine can obtain the sufficient traction and the favorable stability, thereby greatly raising the tunneling efficiency and meeting the requirements for tunneling a steep tunnel by the tunneling machine.

The invention relates to an integrated electric motorcycle multi-stage variable-speed power plant, which comprises a direct-current motor, a gearbox and an electric shifting mechanism, and is characterized in that a main driving shaft in the gearbox is sequentially provided with a first-stage driving gear, a second-stage driving gear, a third-stage driving gear, a fourth-stage driving gear and a reduction gear; a driven shaft is provided with a first-stage driven gear, a second-stage driven gear, a third-stage driven gear and a fourth-stage driven gear, and directly connected with a wheel hubin a matching way; and a shell of the direct-current motor and a box body of the gearbox are integrated into a whole, a gear at the end of a rotating shaft is meshed with an intermediate gear which is meshed with the reduction gear on the main driving shaft, and the motor is connected with a controller, a power supply and a starting switch by a lead. The power plant not only has compact structureand strong integrity, but also leads the radiating condition of the direct-current motor to be improved significantly; and the speed is adjusted by driving a variable-speed drum through a stepping motor, thus leading the motorcycle to have enough traction when driving on an upslope, and be speeded up when driving on a level road.

The invention discloses a pressure-resistant and tensile-resistant optical cable pulling machine. The optical cable pulling machine is equipped with a fuel tank, an air filter, a gearbox and a motor inside. The optical cable pulling machine includes a frame, a transmission and pulling mechanism, a pressing transmission mechanism, an emergency control The driving mechanism, support frame, guide wheel, handle, universal wheel and wheels, the transmission traction mechanism is arranged at the lower end of the frame in the horizontal direction, the compression transmission mechanism is arranged in parallel above the transmission traction mechanism, the transmission traction mechanism, the compression transmission mechanism They are respectively connected to the gearbox transmission. The emergency braking mechanism is set at the upper end of the frame, and its lower end is connected with the compression transmission mechanism. One side of the air filter is provided with an exhaust pipe, and one end of the emergency braking mechanism is connected with the exhaust pipe. The support frame is respectively movably connected with the two sides of the frame, and the guide wheel is connected to the frame. The wheels are respectively connected to the bottom of the frame.

A continuously variable transmission, comprising: a first shaft, carrying a first disc to rotate together; a second shaft, carrying a pair of second discs to rotate together, and the second discs are arranged at intervals along the second shaft , the first axis and the second axis are such that the first disc is located between and overlaps with the second disc, the opposite surfaces of the first disc and the second disc Inclined; a pair of driving rings, both located between the first disc and the second disc on opposite sides of the first disc, the end surface of the driving ring is in contact with the first disc contacting an opposing surface of the second disc to transmit power between the first shaft and the second shaft; and a control mechanism that drives the drive ring relative to the first disc and the second disc move, thereby changing the mutual radial position, thereby changing the speed of the continuously variable transmission.

The invention belongs to the technical field of mechanical processing and particularly relates to equipment for auxiliary loading of a metal plate cutter. The equipment comprises ground rails and a rack which is positioned between the ground rails and arranged in a length direction, and further comprises four stand columns with drivers and roller wheels on bottoms, and a lifting framework, wherein a plurality of equal-height supporting roller shafts are mounted on the top of the rack in parallel; the roller wheels are positioned on the ground rails; a transverse beam is mounted between tops of the adjacent two stand columns; four bases which are distributed in the form of a rectangle are fixedly connected and mounted on the transverse beams; a speed reducer and a steel cable reel driven by the speed reducer are mounted on the top of each base, and a steel cable is wound on each steel cable reel; the lower end of each steel cable is fixedly connected with the lifting framework; a horizontal bottom framework is fixedly connected and mounted at the bottom end of the lifting framework; a plurality of hangers for hanging a metal plate are arranged on the edge of the bottom framework; left and right groups of wheel racks with limiting roller wheels at bottom ends are fixedly connected on the bottoms of the transverse beams; the edges at the two sides of the lifting framework are blocked between the limiting roller wheels.

The invention discloses self-propelled prepositive-straw-smashing postpositive-rotary tillage ditching, fertilizing and seeding combined operation equipment and belongs to the field of agricultural machinery. The combined equipment comprises a power chassis assembly, a front suspension, a rear suspension, a straw smashing device and a finishing device, the straw smashing device is arranged in front of the power chassis assembly through the front suspension, and the finishing device is arranged in rear of the power chassis assembly; the power chassis assembly comprises a frame and crawler-type walking device, a transmission box and a driving cab assembly, the transmission box and the driving cab assembly are arranged on the frame and crawler-type walking device, and the finishing device comprises a fertilizing device, a seeding device, a rotary tillage device, a ditching device and a compacting device which are integrally mounted. The self-propelled prepositive-straw-smashing postpositive-rotary tillage ditching, fertilizing and seeding combined operation equipment integrally realizes various agricultural operations like returning smashed straw into fields, rotary tillage, fertilizing, ditching and seeding, so that working efficiency is improved greatly, and precision intelligent seeding is realized; straw is smashed and returned into the fields, so that resources are recycled, straw burning is avoided, environment is protected, and soil is improved.