58results about How to "Avoid injury hazard" patented technology

The invention discloses a novel numerical control silicon steel sheet transverse shearing line device. The novel numerical control silicon steel sheet transverse shearing line device comprises a control center, a discharging device and a feeding channel. The feeding channel is sequentially provided with a front feeding device, a first punching device, a V-shaped opening shearing device, a second punching device, a rear feeding device, a swing shearing device and a discharging table. A material collecting device is arranged behind the discharging table. The material collecting device comprises a magnetic conveying belt and a sheet stacking table. The numerical control silicon steel sheet transverse shearing line device has the beneficial effects that the front feeding device and the rear feeding device are arranged, waste of sheets is reduced, and the shearing precision is improved; twisting and bulging of silicon steel sheets are avoided, and high-speed conveying of the silicon steel sheets is achieved; the first punching device and the second punching device are symmetrically distributed on the front side and the rear side of the V-shaped opening shearing device, one-step punching is achieved, time is saved, and the production efficiency is improved; and according to the material collecting device, the magnetic conveying belt is matched with the sheet stacking table, shorn silicon steel sheets are automatically stacked in order, operation of workers is reduced, human resources are saved, and efficiency is improved.

A lifting device (7) with a rotatable, endless conveyor-chain (8) for receiving bulk material (9) of a track bed (10) is associated with a machine (1) comprising a machine frame (2) that can be moved on a track (6) during a working advancement (5). A discharging device (12) for discharging the received bulk material (9) and a mounting (13) for connecting the lifting device (7) to the machine frame (2) in an articulated manner are provided in the region of an upper conveyor-chain deflection (11). The mounting (13) is movably supported on the machine frame (2) relative to same in a longitudinal direction of the machine, said mounting moving in a displacing motion (20) that is limited by a front working position (18) with respect to a working direction (4) and by a rear end position (19). The mounting is also connected to a buffering element (21) that is fixed on the machine frame (2), said buffering element enabling a displacement of the mounting (13) together with the lifting device (7) to the end position (19) after a target resistance (22) acting against the displacing motion (20) is exceeded. A switch (25) that detects the displacing motion (20) and the exceeding of the target resistance (22) is designed to interrupt the working advancement (5) of the machine (1).

The invention discloses an automatic sheet stacking method and device for cut-to-length lines of silicon steel sheets. The device comprises a front-arrangement conveying belt, a magnetic conveying belt and a material collection cart. The magnetic belt is used for attracting the silicon steel sheets for conveying, and when the silicon steel sheets reach the position above the material collection cart, the magnetic belt is demagnetized, and the silicon steel sheets freely descend; and under the effect of a limiting device of the material collection cart, the silicon steel sheets are rapidly stacked in order, the danger that the silicon steel sheets fly out at the high speed to hurt a person is avoided, rapid in-order stacking can be achieved, worker operation is reduced, and manpower resources are saved.

The invention discloses a quantitative proportioning type fodder mixing machine for the animal husbandry. The quantitative proportioning type fodder mixing machine comprises a base, three fixed boxesare arranged at the upper end of the base, four supporting rods are fixed to the four corners of the lower end of each fixed box, and the lower ends of the four supporting rods of each fixed box are fixed to the upper end of the base. An automatic sealing device is arranged on one side of the each fixed box, a second bearing rod is fixed to the lower end of each automatic sealing device, one end of each second bearing rod is fixed to one side of the corresponding fixed box, a second fixed block is fixed to the side wall of one end in each fixed box, one side of each second fixed block is rotationally connected with a second oil cylinder, and a first opening is formed in the upper end of each fixed box. According to the quantitative proportioning type fodder mixing machine, the function ofreplacing manual stirring with mechanical stirring is achieved, the problem that due to manual stirring, the consumed time is long, a large amount of manpower is wasted, and stirring is uneven is solved, meanwhile, the hidden danger of possible harm to the human body in the manual stirring process is avoided, operation is easy, and the quantitative proportioning type fodder mixing machine is suitable for popularization.

The invention discloses a motor bearing assembly radial clearance measuring method and device. The method comprises the steps of: fixing a motor housing on a motor displacement apparatus, setting a laser measurement apparatus on the motor displacement apparatus, and starting the laser measurement apparatus to carry out first vertical measurement on the position at a rotating shaft of a motor, starting the motor displacement apparatus to enable the motor to rotate by 180 degrees around a direction perpendicular to the axial direction of the motor, then carrying out second vertical measurement on the position at the rotating shaft of the motor through the laser measurement apparatus, and working out the difference value of the two values measured in the vertical direction, thus obtaining theradial clearance of motor bearing assembly. The method and device provided by the invention adopt the laser measurement apparatus to scan the positions of the rotating shaft before and after rotationand calculate the radial assembly clearance, and have the advantages of high precision, high efficiency, no damage to the bearing and the like.

The invention discloses a four-degree-of-freedom accurate hoisting carrier loader for under-train parts of a motor train unit, and belongs to the technical field of under-train part carrying equipment in the rail transit vehicle assembling stage. The four-degree-of-freedom accurate hoisting carrier loader is provided with a bottom frame; a bearing platform is arranged above the bottom frame; a movable layer comprises a movable layer, a rotating layer and a lifting layer; the lower part of the movable layer is in sliding connection with the bottom frame, and the upper part is rotationally connected with the rotating layer; the upper part of the rotating layer supports the lifting layer to lift along the Z-axis through a bracket; a bearing table is slidably connected to the lifting layer; the movable layer further comprises transmission mechanisms distributed between the bottom frame and the movable layer, between the movable layer and the rotating layer and between the rotating layer and the bearing platform, and the transmission mechanisms are used for enabling the bearing platform to move along the X axis, rotate and move along the XY plane, ascend and descend along the Z axis and move along the Y axis. The four-degree-of-freedom accurate hoisting carrier loader can realize accurate adjustment on vehicle lower part positions in four freedom degrees, the structure is simple, operation is stable and reliable, time and labor are saved, and the working efficiency can be improved.

The invention provides a clutch mechanism of a control grip of a machine. The clutch mechanism is a pivot bonding base bonded to the machine. An axis pipe is arranged in the pivot bonding base in a penetrating mode. An insertion rod is arranged in the axis pipe in a penetrating mode. One end of an insertion rod is exposed out of the axis pipe. A movable block is arranged on the axis pipe in a sleeving mode and connected with the insertion rod on the periphery of the axis pipe. A positioning block is arranged on one side of an operation wheel. The operation wheel is arranged on the axis pipe in a coaxial and pivoted mode through the positioning block. A control piece is bonded with the end of the insertion rod and can be pulled and drive the movable block to move between a first position and a second position through axial displacement of the insertion rod. At the first position, the movable block is disengaged from the positioning block. At the second position, the movable block and the positioning block are clamped so that the operation wheel can rotate and drive the axis pipe to rotate, and the clutch mechanism is obtained in this way.

The bone nail is intended for the heel. It comprises a front part (15) that is intended to be inserted in the bone and is provided with a tip (17) and it also comprises a rear part (16) having an end (18). The rear part (16) is rigid at a length of at least 120 mm, starting from the end (18). The bone nail is curved in a plane and the curvature for each infinitesimal section of the bone nail has a curvature radius that is at least 130 mm. The key advantages that can be achieved with the bone nail according to the invention and thanks to the surgical technique that becomes possible with it are the possibility to adjust the heel with high precision relative to the lower leg and knee axis, the avoidance of the risk of an injury to the plantar nerves, and a less invasive implant compared to known surgical techniques using other nails.

The invention relates to a brake of industry vehicles. The brake mainly comprises a pedal arm, a support, a return spring, a lock pawl, an elastic finger, a control level, a control screw, a lock nut, zip-fastener hanging parts, a hanging scroll, an adjusting bolt, a zip-fastener balancer and an elastic body. One side of the pedal arm facing to the support is fixedly connected with a wiredrawing scroll, the latch hook of the pedal arm, the thrust face of the level, the return piece of the finger. One side of the support facing the pedal arm is fixedly connected with the pivot shaft of the pedal arm, the pivot shaft of the lock bolt pawl, and the pivot of the control level. The side is also equipped with the stop slot of the pedal arm, the stop slot of the finger and the stop slot of the lock bolt pawl. The invention has the advantages of simple structure, easy fabrication, reliable operation, being completely controlled by the pedal, the only locking position and the subsequent stable brake force due to locking at the first operating position and unlocking at the second operating position, moreover having the function of the adjustable unlocking travel and the compensation of the abrasion of the brake block.

Provided is a rotational-speed-controlling variable piston pump with which it is possible to satisfactorily avoid abnormal pressures in the bore chamber of a cylinder block with a simple configuration, without causing loss of pump efficiency or increases in cost. The present invention provides a rotational-speed-controlling variable piston pump in which pistons move back and forth within a bore at a stroke suited to the angle of inclination of a swash plate along with the rotation of a cylinder block, whereby hydraulic oil is drawn into a bore chamber from an intake oil passage formed in a casing, via an intake port of a port plate against which the cylinder block slides, and the hydraulic oil is discharged to a discharge oil passage formed in the casing, via a discharge port of the port plate; wherein an abnormal-pressure-avoiding oil pressure circuit, which releases the hydraulic oil in the bore chamber out of the bore chamber when the pressure in the bore chamber positioned between the intake port and the discharge port of the port plate exceeds a predetermined pressure, is provided as being incorporated in the same unit structure within the same casing.

A disengaging and engaging mechanism for a control grip of a machine tool comprises a pivoting seat, a shaft core pipe, a movable block, an operation wheel and a control piece. The pivoting seat is combined with the machine tool; the shaft core pipe penetrates through the pivoting seat, an inserting rod is arranged in the shaft core pipe in a penetrating mode, and one end of the inserting rod is exposed out of the shaft core pipe; the shaft core pipe is sleeved with the movable block, and the position, on the periphery of the shaft core pipe, of the movable block is connected with the inserting rod; a positioning block is arranged on one side of the operation wheel, and the operation wheel coaxial with the positioning block is arranged on the shaft core pipe in a pivoted mode; the controlpiece and the end of the inserting rod are combined; the control piece can be pulled to drive the movable block through axial displacement of the inserting rod to move between the first position and the second position, when in the first position, the movable block is disengaged from the positioning block, and when in the second position, the movable block is clamped with the positioning block sothat rotation of the operation wheel can drive the shaft core pipe to rotate, and accordingly the disengaging and engaging mechanism for the control grip of the machine tool is formed.