36results about How to "Avoid violent friction" patented technology

A mop cleaning dewaterer comprises a case. A motor is arranged at the inner bottom of the case, an inner container is arranged in the case, the bottom end of the inner container is fixedly connected with the end of a motor rotor, and a projecting structure is arranged in the inner container. A mop is placed into the inner container, the motor drives the inner container to rotate, the mop can be effectively cleaned, the projecting structure can drive water to rotate when the inner container rotates, and the mop is scrubbed.

The invention discloses a horizontal reverse alloy steel extrusion machine, which belongs to the novel technical field of seamless steel pipe and relates to a seamless steel pipe manufacturing facility. The purpose is to settle the problems of complex process, inefficiency, high energy consumption and pollution of the environment with the prior domestic cold drawing techniques of small-bore seamless alloy steel tube. The machine consists of a rigid framework, a liquid-filled combined hydraulic cylinder and a die assembly, wherein, the rigid framework consists of an anterior fixed beam, a posterior fixed beam and an intermediate moving beam on the frame, which are connected in series by a four tensile columns; the liquid-filled combined hydraulic cylinder has a compact structure and is capable of executing the operations of die displacement, material feeding, perforation, extrusion and die removal; the die assembly consists of a perforation & extrusion & automatic switching system, a hot extrusion / molding system and a die removal & disengaging & residual extrusion & cutting system. The machine is capable of achieving once-and-for-all heating and once-and-for-all molding to directly produce finished products of small-bore seamless alloy steel pipes. Compared with forward extrusion, the deviations of the displacement of the piercing mandril and the dies are small, and no friction occurs between the billets and the internal wall of the container, thereby the machine can directly adopt continuous casting billets to extrude small-bore pipes, and has the advantages of simple process, high quality, high efficiency, low energy consumption, etc.

The invention relates to a wear-resisting device of a receiving liner plate of a band conveyor, in particular to a liner plate of a discharging / receiving end of a band conveyor and solving the problem of too rapid wear of the liner plate. The wear-resisting device comprises a bracket arranged on a conveyor stand and a liner plate fixed on the bracket. The wear-resisting device is characterized in that a baffle plate is welded by forming a certain angle with the bracket. The upper part of the bracket is connected with a regulating rod and the lower part is hinged with the conveyor stand. The wear-resisting device can be arranged at the discharging end or receiving end of the band conveyor. When materials fall on the liner plate, part of materials are remained on the baffle plate to ensure that a material layer with certain thickness is formed in front of the liner plate, thus the collision of particular materials to the liner plate is buffered, the wear of the liner plate is reduced, the service life of the liner plate is prolonged, the period of replacing the liner plate is expanded and the factory shutdown losses are reduced.

The invention relates to the technical field of intelligent numerical control equipment, and discloses a center frame for numerical control machining positioning. The center frame comprises a base; asupporting outer ring is fixedly installed at the top end of the base; the interior of the supporting outer ring is provided with a supporting ball and movably sleeved with a supporting inner ring through the supporting ball; and a conducting ring is fixedly installed in the inner cavity of the supporting inner ring. According to the center frame for numerical control machining positioning, by arranging three sets of electromagnets, when the center frame fixedly supports to-be-machined workpieces different in outer diameter, the magnitude and direction of the electric current of the center frame can be changed through an electric current controller only within the magnetic field intensity control range of the electromagnets, meanwhile, the problem that when an existing center frame fixedlysupports to-be-machined workpieces different in outer diameter, repeated positioning adjustment needs to be conducted on a threaded supporting claw of the center frame is solved, and the time, for clamping and positioning the to-be-machined workpieces different in outer diameter, of the center frame is effectively shortened.

The invention discloses a steering rail capable of preventing violent friction for logistics transportation. The steering rail comprises an arc-shaped rail inner plate, an arc-shaped rail outer plateis arranged on the outer side of the arc-shaped rail inner plate, the sides, close to each other, of the arc-shaped rail inner plate and arc-shaped rail outer plate are rotatably connected with rotating rollers through multiple mounting bearing bases, and a driving motor is fixedly connected to the right side of the arc-shaped rail inner plate. Through arrangement of limiting discs and limiting rollers, the effect of limiting positions on both sides of each object to be steered during movement is achieved; through arrangement of buffering springs and guiding rollers, a guiding effect is achieved by means of the rotation generated when the rail is in contact with the objects, correspondingly the effect of avoiding the violent friction between the objects and the rail during steering is achieved by means of limitation of both sides of the bottom of each object and guidance of both sides in a forward movement direction,, and the effect that the objects are protected and are unlikely to bedamaged when the objects are conveyed on the steering rail is achieved.

The invention discloses a star-spinning type rotation device with double sun wheels, an engine and a fluid machine. A spin valve plate sun wheel is installed in the middle of a main sun wheel, and all pressure or parts of pressure are pressed on the spin valve plate sun wheel when spin valve plates are opened. Due to the facts that the spin valve plate sun wheel can be independent of the main sun wheel to rotate and the rotation of the main sun wheel is absorbed by bearings arranged between the spin valve plate sun wheel and the main sun wheel, severe friction produced by the relative motion between the valve plates and an outer cylinder surface of the main sun wheel is prevented, and the service life and efficiency of the star-spinning type rotation device are improved.

The invention belongs to the technical field of printed circuit board manufacturing, in particular to a PCB circuit board transport platform, which comprises a storage cabinet and a walking device, wherein the storage cabinet is installed on the walking device; The storage cabinet is a cuboid with an internal cavity, one end of the cuboid is provided with an opening, at least three partitions arevertically arranged inside the storage cabinet, the partitions divide the internal cavity of the cuboid into independent storage spaces, and transmission units are horizontally arranged between the adjacent partitions at the top and the bottom, and the transmission units are used for storing PCB circuit boards; The transmission unit comprises a rotating shaft, a belt pulley and a conveying belt, wherein the number of the belt pulleys is two, and the belt pulley is horizontally installed between adjacent partition plates through the rotating shaft; The conveyor belt is mounted horizontally on the pulley; and the PCB board is positioned vertically between the upper and lower transmission units. The invention can realize the transportation of a plurality of circuit boards, can realize the buffering of the vibration of the circuit boards, and realizes the protection of the circuit boards.

The invention discloses an intelligent handling robot for wooden furniture processing, which includes a lifting card frame, a moving base and a fixed card seat. On the side outer surface of the fixed card base, two sets of first hydraulic rods are fixedly installed between the lifting card frame and the mobile base on both sides close to the fixed card base. A hydraulic rod is movably connected, the inner side of one end of the mobile base is movably socketed to the second set of boards, and the inner side of the other end of the mobile base is movably socketed to the first set of boards; the invention is an intelligent handling robot for wooden furniture processing, so that its It has a synchronous lifting structure, which enables it to carry out furniture of different heights and different shapes, improving its scope of application, and at the same time avoids the shaking phenomenon of the intelligent handling robot for wooden furniture processing during handling and moving operations, and improves its stability.

The invention discloses a mould device. The mould device comprises an upper mould plate and a lower mould plate, and further comprises a lower mould cylinder, an upper mould cylinder and a copper sleeve, wherein the lower mould cylinder is fixedly connected with the lower mould plate; a first through hole is formed in the middle of the lower mould cylinder; the upper mould cylinder is fixedly connected with the upper mould plate and can slide in the first through hole; the copper sleeve detachably sleeves the outer side wall of the upper mould cylinder; a plurality of second through holes of which the axes are perpendicular to the axis of the copper sleeve are formed in the side wall of the copper sleeve; balls capable of rolling in the second through holes are arranged in all the second through holes; and the diameter of each ball is greater than the thickness of the side wall of the copper sleeve. The mould device provided by the invention has the advantages that when the upper mould cylinder slides in the lower mould cylinder, the friction between the balls, namely steel balls, and the upper mould cylinder, the friction between the steel balls and the lower mould cylinder, as well as the friction between the upper mould cylinder and the lower mould cylinder can be reduced because a plurality of the balls capable of rolling are arranged on the side wall of the copper sleeve; and when relatively serious abrasion is caused by the balls, only the balls need to be replaced, that is, the upper mould cylinder needs not be replaced, so that the maintenance efficiency is improved and the maintenance cost is reduced.

The invention discloses an active type yarn guide mechanism of a computer flat knitting machine and belongs to the technical field of auxiliary components of computer flat knitting machines. The computer flat knitting machine comprises a bedside compartment which is arranged on the top of a machine frame of the computer flat knitting machine. The active type yarn guide mechanism comprises a sliding sleeve yarn guide device, a fixed plate base and a set of pulley yarn guide devices. The sliding sleeve yarn guide device is arranged on the bedside compartment and located below the bedside compartment in the height direction. The fixed plate base is fixed to the top of the machine frame. A yarn guide pulley base fixed plate is fixed to the fixed plate base and is correspondingly arranged below the sliding sleeve yarn guide device. The pulley yarn guide devices are arranged in the length direction of the yarn guide pulley base fixed plate at intervals. By the adoption of the active type yarn guide mechanism of the computer flat knitting machine, the yarn breakage rate is significantly lowered, it is ensured that yarn moves towards the knitting machine in a stable state, and the quality of a knitted object can be ensured.

The invention provides a sintering machine air box end portion sealing device. The sintering machine air box end portion sealing device comprises a base mechanism, a counterweight four-connection-rodself-adjusting mechanism and a detection alarm mechanism, wherein the counterweight four-connection-rod self-adjusting mechanism comprises a sealing plate, transition plates, rotating parts, hydrauliccylinders and counterweight blocks, the detection alarm mechanism comprises air leakage sensors, a contact sensor, a second support and an alarm processor, and the alarm processor judges whether to issue a corresponding alarm or not and whether to control the hydraulic cylinders to act or not by analyzing feedback values of the air leakage sensors and the contact sensor. The invention further provides a control method for the sintering machine air box end portion sealing device. According to the sintering machine air box end portion sealing device and the control method thereof, the sensors collect working condition parameters of the sealing device and perform feedback to the alarm processor to perform analyzing, exceptional situations that the sealing plate cannot be restored or partialwear of the sealing plate leads to air leakage or continuous multiple trolleys are all collapsed and the like can be detected and disposed in time, the air leakage rate in the sintering production process can be greatly reduced, the sintering rate is increased and the sintering effect is improved.

The invention relates to a suspension apparatus of a ship main engine. The suspension apparatus comprises wire ropes, and further comprises a suspension frame. A left end on the top of the suspension frame is connected with a first traction part through a first wire rope (111). A right end on the top of the suspension frame is connected with a second traction part through a second wire rope (211). A left end on the bottom of the suspension frame extends to a first suspension point (A) of a main engine (5) through a third wire rope (112). A right end on the bottom of the suspension frame extends to a fourth suspension point (D) of the main engine (5) through a fourth wire rope (212). A middle portion of the suspension frame is provided with space, wherein a middle wire rope passes through the middle portion of the suspension frame from top to bottom, and extends to a corresponding second suspension point (B) and a corresponding third suspension point (C) in the space. An upper end of the middle wire rope is connected with a third traction part. Compared to the prior art, the apparatus provided by the present invention has the following advantages that: the structure of the apparatus is simple; the pulley block is not required; the apparatus is easy to be used; the production cost of the apparatus is low; the suspension beam structure of the apparatus is solid and stable so as to provide longer service life.