42results about How to "Effortless manipulation" patented technology

The invention discloses a vehicular disk-type permanent magnet eddy current retarder, comprising a first rotor, a second rotor, a first stator, a second stator, a support frame, a connecting rod and an execution mechanism, wherein the first rotor and the second rotor are coaxially arranged at interval; the first stator and the second stator are coaxially arranged between the first rotor and the second rotor; the support frame is fixedly connected with a vehicle gearbox shell or a frame; the middle part of the connecting rod is connected with the extension end of the support frame by adopting a cylindrical pair, and two ends of the connecting rod respectively form spherical hinges with the peripheral edges of the first stator and the second stator; and the execution mechanism is articulated with the other extension end of the connecting rod. A high-performance neodymium iron boron permanent magnet provides a magnetic field, so that power supply is not needed, and the defect of power consumption of an electric eddy current retarder is overcome; two disks are articulated together by the connecting rod via a joint bearing to avoid axial force caused by non-uniform air gaps on two sides, and simultaneously, the maximum axial resistance is skillfully converted into circumferential rotation and axial motion to reduce the driving force.

The invention relates to a steering system for a five-axle heavy duty car. The forward-rotation output shaft of a right angle gear box is connected with the input end of a front steering gear through the transmission shaft of a first front axle, the output end of the front steering gear is hinged with the middle part of a driving arm, the lower end of the driving arm is connected with a steering arm on a first wheel hub through the longitudinal tie of a first front axle, the upper end of the driving arm is connected with the upper end of an oscillating arm through the upper tie rod of a second front axle, the middle part of the oscillating arm is hinged on a longitudinal beam, and the lower end of the oscillating arm is connected with a steering arm on a second wheel hub through the longitudinal tie of a second front axle; after being decelerated, the backward-rotation output shaft of the right angle gear box is connected with the input end of a rear steering gear through a transmission shaft mechanism, and the output end of the rear steering gear is connected with a steering arm on a fifth wheel hub through the longitudinal tie of a fifth axle. The transmission part of the steering system is under very small stress, the flexibility and the reliability of steering can be guaranteed, the operation is labor saving, and the steering system has the advantages of simple structure, easy assembly, light overall weight, low consumption of materials and low production cost.

The invention discloses a clamping device and a slicer with the same. The clamping device comprises a control part, a wedge part, a clamping part and a shell and is characterized in that the wedge part is provided with a first end, a second end and a first oblique surface between the first end and the second end, and the wedge part expands from the second end and the first end; the clamping part is provided with a second oblique surface, the first oblique surface and the second oblique surface are oppositely arranged, and the first oblique surface can move relative to the second oblique surface; the shell is provided with a first guide part, a second guide part and a cavity, the control part is mounted in the first guide part, the clamping part is mounted in the second guide part, and thewedge part is arranged in the cavity; by controlling the control part to move towards the wedge part, the control part contacts with the first end of the wedge part, pushes the wedge part to move andallows the first oblique surface of the wedge part to contact with the second oblique surface of the clamping part and move along the second oblique surface, and accordingly the pushing force, along afirst direction, of the control part is converted into clamping force, along a second direction, of the clamping part.

The invention relates to a hydraulic tractor steering device. The hydraulic tractor steering device comprises a tractor chassis. A traction shaft at the foremost end of the tractor chassis is hinged to a tractor head through a traction connecting piece, a driver seat is arranged at the front middle end of the tractor chassis, and a hydraulic steering gear is arranged in front of the driver seat. One end of a control shaft is fixedly connected with a steering wheel, and the other end of the control shaft is connected with the hydraulic steering gear. The front face of the hydraulic steering gear is communicated with a pressure reducer. A gear hydraulic pump is fixedly connected to the foremost end of the tractor head. An oil tank is fixedly arranged above the middle of the tractor head. The gear hydraulic pump and the oil tank are respectively provided with an oil outlet and an oil returning port. One end of a bi-direction hydraulic stretchy steering oil cylinder is hinged to a connecting head on one side of the tractor chassis, and the other end of the bi-direction hydraulic stretchy steering oil cylinder is hinged to a traction connecting piece through a hydraulic column. The hydraulic tractor steering device is reasonable in structure layout, labor is saved during operation, and the steering accuracy is guaranteed.

The invention discloses a limiting device for a hopper car bottom door opening and closing mechanism, and belongs to the technical field of freight vehicles. The limiting device specifically comprisesan upper transmission shaft, the upper transmission shaft drives a bottom door to be opened or closed through rotation, the limiting device comprises a limiting swing arm fixedly connected with a swing block, and a limiting mechanism which comprises a deflector rod device and a positioning block, and the deflector rod device drives the positioning block to longitudinally move along the guide structure so that the positioning block moves to different positioning gears; the swing block of the upper transmission shaft drives the limiting swing arm to rotate to the positioning blocks of differentgears so that the rotating angle of the upper transmission shaft is limited, and the opening state of the bottom door is controlled. The opening angle and the ballast unloading flow of a ballast unloading bottom door are achieved by controlling the rotating angle of the transmission shaft, and the functions of mistaken rotation prevention, multi-gear ballast unloading flow control and limiting when the bottom door is located at the full-open position are achieved.

The invention relates to a walking tractor with a hydraulic steering wheel and a self-discharging function. The walking tractor comprises a tractor chassis, wherein the headmost end of the tractor chassis is connected with a tractor head; the middle front end of the tractor chassis is provided with a seat of driver; a hydraulic steering device is arranged in front of the seat of driver; a wagon box is arranged behind the seat driver; an oil tank and a distributor are arranged beside the seat driver ; a gear hydraulic pump is fixedly connected to the headmost end of the tractor head; the tractor chassis under the wagon box is hinged to two self-discharging hydraulic oil cylinders. The walking tractor disclosed by the invention has the advantages that the structure is simple, the structural layout is reasonable, the steering is flexible, the operation is labor-saving, the safety is good, and a box body can automatically turn over.

The invention belongs to the technical field of civil air defense engineering protection equipment, and particularly relates to urban underground comprehensive pipe gallery hoisting opening steel structure civil air defense protection equipment. The equipment comprises a door frame, hinges, door leaves, locks and an electric driving device, wherein the door frame is mounted on a base body of a hoisting opening, the door leaves are steel structure door leaves and are hinged to the door frame through the hinges, the locks are mounted on the door leaves, and the electric driving device is connected with the locks and the door leaves. According to the equipment, efficient and reliable orifice protection measures can be provided for the comprehensive pipe gallery engineering hoisting opening, the safety of personnel and equipment in the engineering is guaranteed, and the equipment has important guiding significance and application value for preserving wartime city strength and improving thesurvivability of important city conveying pipelines, has wide popularization and application prospects in comprehensive pipe gallery construction in China, and has great war preparedness benefits andremarkable economic benefits.

The invention belongs to a workpiece forming and machining device and particularly relates to an improved non-die copy necking system and application of the same in workpiece necking machining. The improved non-die copy necking system comprises a driving wheel, wherein a driven wheel is coaxially and parallelly arranged on one side of the driving wheel in a spaced mode, the spacing between the driven wheel and the driving wheel is controlled by a driven wheel ejection mechanism, the edge of the driving wheel and the edge of the driven wheel are matched with the appearance of a mouth part of a workpiece undergoing necking machining, a working platform is parallelly arranged on one side of the driving wheel and the driven wheel in a spaced mode, and a crank sliding block rotation mechanism makes the working platform rotate in the same plane in the radial direction of the driving wheel. A height adjusting device is arranged at the bottom of the working platform, two ends of a clamping mechanism are arranged on the upper side and the lower side of the working platform, the action executing end clamps a workpiece cavity, and a positioning mechanism matched with the appearance of the workpiece to be machined is arranged on the upper surface of the working platform. The technical problem that the workpiece necking machining requirement is difficult to meet is effectively solved, and the improved non-die copy necking system has the advantages of better meeting the workpiece machining requirement and being ingenious in design, easy to control automatically and the like.

A forklift with a cockpit rotating mechanism of the present invention, the cockpit and the forklift body are rotatably connected through bearings, and the forklift body is also provided with a tilting oil cylinder for jacking up the cockpit and a support frame for the cockpit in a reset state and shock absorbing pads, the hydraulic locking lock in the normal and reset state of the cockpit, the operating handle for manipulating the tilting cylinder, the manual pump connecting the operating handle and the tilting cylinder, the slewing bracket for connecting the forklift body and the cockpit and the The oil tank used for oil supply to the tilting cylinder. The present invention has a large maintenance space, greatly reduces maintenance blind spots, ensures maintenance space more vigorously, has a simple structure, saves costs, and is labor-saving and safe to operate.

A full hydraulic steering gear for graders belongs to the field of engineering machinery. The technical scheme of the present invention is: the steering gear is composed of a steering valve and a cycloidal motor; the part on the left side of the partition is a steering valve, the main components are a valve body, a valve core, and a valve sleeve, and the valve core is supported on the bearing of the valve cover , connected with the steering wheel with a connecting block, the valve core, valve sleeve and coupling are put together with a dial pin, the pin hole on the valve core is long, and there is a relative rotation of 20 to 70 between the valve sleeve and the right side of the spacer It is a cycloidal motor, the rotor and the coupling are connected by splines, the stator, the spacer and the end cover form the working chamber; there are four oil inlet and return ports connected to the external pipeline on the valve body, and two for the overflow The valve leads to the inlet and outlet ports of the oil pump and oil tank, and the other two lead to the left and right chambers of the steering cylinder. The beneficial effect is that the force for deflecting the wheels is entirely hydraulic pressure, which is especially suitable for construction machinery such as motor graders whose steering wheels are far away from the cab, and is easy to operate, labor-saving, compact in structure, safe and reliable.

The invention discloses an accessory tool rapid locking device and a locking method. The accessory tool rapid locking device comprises a locking clamping part, a driving conduction part and a supporting part, wherein the driving conduction part comprises a lower pressing plate and an upper pressing plate, and one end of the upper pressing plate is connected to the supporting part; the locking clamping part is arranged in the supporting part and extends into the upper pressing plate; when the auxiliary tool is installed between the lower pressing plate and the upper pressing plate, the locking clamping part drives the lower pressing plate and the upper pressing plate to clamp the auxiliary tool, and the lower pressing plate and the upper pressing plate are connected through a shape locking structure capable of transmitting torque. A first protrusion matched with the accessory tool installation hole is arranged at one end of the lower pressing plate, and when an accessory tool is installed between the lower pressing plate and the upper pressing plate, the first protrusion is inserted into the accessory tool installation hole. Torque can be transmitted through shearing force, so that the required clamping force is small, and the operation of the rapid clamping operation part is more labor-saving. Locking and loosening can be achieved without the help of additional tools, and the device can be matched with various auxiliary tools in the prior art.

The invention discloses a floor type brake master cylinder performance test device. The device comprises an air source system, a fixed base, an adjustable support and a pressing rod mechanism; the adjustable support is arranged on the fixed base; a brake master cylinder is mounted on the adjustable support; the pressing rod mechanism is rotatably mounted on the top surface of the fixed base; the rotating shaft center is overlapped with the pedal rotating shaft center of the brake master cylinder; a pedal force sensor is arranged at the position, 160 mm away from the pedal rotating shaft of thebrake master cylinder, of the upper surface of the pedal; the pressing rod mechanism is provided with a roller abutting against the pedal force sensor through a support hanging rod, the central axisof the support hanging rod is perpendicular to the upper surface of the pedal force sensor, and a displacement sensor is fixed to the side face of the adjustable support and connected with the end ofthe pedal through a pull wire. The invention further discloses a floor type brake master cylinder performance test method, the pedal angle advancing amount can be accurately calculated through testingand calculation of the displacement sensor, the pedal angle advancing amount is not directly related to the starting point of the pull wire of the displacement sensor, and high applicability is achieved.

The invention relates to a swing ball shooting mechanism of a marble game machine. The mechanism comprises a marble inlet pipeline and a marble shooting gun barrel, the marble shooting gun barrel andthe marble inlet pipeline are correspondingly mounted through a swinging device; the swinging device consists of a fixed body, a driving motor, a driving gear and a driven gear; a connecting through hole is formed in the fixing body; the marble inlet pipeline is mounted below the connecting through hole; the marble shooting gun barrel is rotationally mounted above the connecting through hole and corresponds to the marble inlet pipeline; the marble inlet pipeline and the marble shooting gun barrel are in butt joint to form a marble feeding pipeline; the driving gear is arranged on the fixed body, the driven gear is arranged on one side of the bead gun barrel and located at the corresponding position of the driving gear, the driving motor is installed at the corresponding position of the driving gear to drive the driving gear to rotate to drive the driven gear to rotate leftwards and rightwards, and then the driven gear rotates to drive the bead gun barrel to rotate leftwards and rightwards relative to the fixed body. The side-to-side swing performance of the ball gun barrel can be effectively improved, the swing strength is small, and more labor is saved during operation.