143results about How to "Reduce mutual wear" patented technology

The invention discloses a transport cart, and relates to the technical field of vehicles. The transport cart comprises a vehicle frame and wheels, wherein the wheels are mounted on the vehicle frame; the wheels comprise walking wheels and steering wheels; the vehicle frame comprises a mounting frame for mounting a vehicle plate; a mounting base is connected with the front end of the mounting frame; a first inserting base which is opened forwards and a second inserting base which is opened backwards are arranged on the mounting base; the base of the transport cart is inserted into the first inserting base or the second inserting base; the walking wheels are mounted on the mounting frame; the wheel shaft of each steering wheel is connected with a steering control lever; the steering control lever is vertically and rotationally mounted on the mounting base. By adopting the transport cart disclosed by the invention, the technical problem that in the prior art a transport cart cannot turn back in a small space is solved, the transport cart disclosed by the invention can move in a linear reciprocation manner in a narrow space, and moreover the vehicle plate can be lifted up and down, so that the working intensity of moving operators is alleviated, the moving efficiency is improved, and the transport cart is particularly applicable to greenhouses.

The invention relates to a forced seal valve capable of conducting eccentric double-spherical-angle stroke operation. The forced seal valve mainly comprises a valve body, an opening and closing piece, a valve deck, a valve rod, valve bases, a valve base supporting plate, an operation mechanism, a blowdown valve and the like. The opening and closing piece comprises two eccentric spherical structures. By means of the eccentric structures, when the valve rod drives the opening and closing piece to rotate, two eccentric spherical faces can both move in the axis directions of the downstream valve base and the upstream valve base, and therefore the effect of pressing or releasing the valve bases is achieved, and forced sealing of the opening and closing piece, the downstream valve base and the upstream valve base under the specific valve position is achieved. In addition, a module can be formed by the opening and closing piece, the valve rod, the valve bases, the valve base supporting plate and the valve deck, the whole module can be pulled out of the valve as a whole after fastening pieces through which the valve deck and the valve body are connected are detached, and therefore easily-damaged parts of the valve can be replaced in a modularized manner.

The invention discloses a well completion pipe string comprising a bushing. Two floating couplings are arranged on a horizontal section of the bushing. Each floating coupling comprises a shell, an upper slide sleeve and a lower slide sleeve, the upper slide sleeve comprises a communication portion and a shear portion, the shear portion is supported on the upper section of the inner wall of the shell through an upper shear pin, the lower slide sleeve is supported on the lower section of the inner wall of the shell through a lower shear pin, the communication portion is disposed in the lower slide sleeve, and a discharge hole is formed in the communication portion; an annular steady flow groove is formed in the upper end face of the shear portion, and the width of the steady flow groove decreases axially along the shear portion. The floating couplings are arranged on the bushing to enable the bushing to be filled with air; since the bushing below the floating couplings is filled with air, after the section of the bushing enters a horizontal well section, gravity acting on the horizontal well wall is reduced, friction force between the bushing and the well wall is reduced accordingly, thrust pushing the bushing forward is reduced, and accordingly quality of well cementation of the horizontal section is improved beneficially, and convenience is brought to the bushing to lower to the design position.

The invention relates to a durable coal mining winch with a cable being wound in order. The durable coal mining winch with the cable being wound in order comprises a roller, a power device, a cable and two supports and further comprises a guide mechanism and a cleaning mechanism. The guide mechanism comprises a moving seat, a guide ring, a power assembly, two contact switches and two racks. The cleaning mechanism comprises a rotating sleeve, a cleaning brush, a third gear, a drive assembly and two bearings. According to the durable coal mining winch with the cable being wound in order, the cable can be wound around the roller in order through the guide mechanism, the mutual wear between the cable is reduced, the service life of the cable is prolonged, and the practicability of the winch isimproved; by means of the cleaning mechanism, the cable can be cleaned, the quantity of dust particles and dirt on the cable is reduced, so that the mutual wear between the cable is reduced, the corrosion speed of the cable is lowered, the service life of the cable is further prolonged, and the practicability of the winch is further improved.

The present invention discloses a line passing device of a high-speed stranding machine. The line passing device comprises a bracket, and a distributor plate and a reserved plate which are fixed on the bracket in turn along a copper line incoming direction, wherein a plurality of line passing holes are disposed in the distributor plate and the reserved plate, a line entering device is fixed in the axis of the reserved plate, two connecting rods are arranged in a sliding manner at the bracket, free ends of the two connecting rods are connected with each other through an adjusting ring, a line entering hole is disposed in the adjusting ring, an inner circular conical surface is arranged at the upper part of the line entering hole, a plurality of roll balls are arranged at the lower part of the line entering hole, and the adjusting ring is arranged in a sliding manner on the bracket through the connecting rods, that is, the position of the adjusting ring can be adjusted in a sliding manner according to the diameter of an actual copper line, thereby reducing abrasion between the copper lines and the line entering hole and between the inlet of the stranding machine.

The invention discloses a flexible exhaust connection device, which comprises an axially telescopic and bendable flexible pipe body connected to the main exhaust pipe of the platform, and a rigid elbow connected to the exhaust outlet of the engine. The elbow It is connected with the flexible pipe body through an adjustment mechanism, which can be rotated and adjusted by 360°. The flexible exhaust connection device of the present invention has a simple structure, can realize dynamic adjustment in three-dimensional space, is convenient for installation, and is convenient for real-time monitoring of engine tests, and has a wide range of applications.

The invention discloses a mechanical seal for an agitated reactor stirring shaft, which comprises a mating ring adapter, a mating ring, a moving ring, a driving ring, a driving screw, a driving pin, a moving ring adapter which is connected with a stirring shaft and a plurality of springs which are uniformly circumferentially arranged on the moving ring adapter, the driving ring is sleeved on the moving ring adapter, the driving screw is inserted in a through hole of the moving ring adapter in a sliding manner, the lower end of the driving screw is connected with the driving ring, the springs support between the moving ring adapter and the driving ring, the upper end of the moving ring is attached to the driving ring, the upper end of the driving pin is connected with the moving ring adapter and the lower end of the driving pin is arranged in a pin groove of the moving ring, the mating ring adapter is sleeved on the mating ring, the lower end surface of the moving ring is provided with a circular groove, the height of the inner wall of the circular groove relative to the groove bottom is greater than that of the outer wall relative to the groove bottom, a plurality of grooves are uniformly circumferentially arranged on the outer wall of the annular groove., and the lower end of the inner wall of the annular groove is attached with the upper end of the mating ring. The invention has a self-cooling function, and is cooled by using a cooling liquid without arrangement of a cooling liquid tank, thereby greatly reducing volume, preventing raw materials in an agitated reactor from being polluted, being simple in disassembly and assembly and being convenient for replacement.

The invention discloses a heavy-duty steel pile lifting clamp of a cutter-suction dredge in the field of engineering lifting technology. The heavy-duty steel pile lifting clamp comprises two clamping components with a symmetrical structure, the heads and the tails of the two clamping components are fixed by pin shafts and radially arranged on the outside circumference of steel piles of the dredge, and the clamping components comprise a first main lifting arm, a second main lifting arm, a first auxiliary lifting arm, a second auxiliary lifting arm, a first crank arm and a second crank arm, wherein the first main lifting arm, the second main lifting arm, the first auxiliary lifting arm and the second auxiliary lifting arm are symmetrically pinned on the first crank arm and the second crank arm which are arranged oppositely respectively. While quickly generating a clamping force when the steel piles are lifted, the heavy-duty steel pile lifting clamp makes the contact forces of the clamp and the steel piles evenly distributed; and when the clamp is opened, the even opening degree is large enough, so that the lifting clamp can freely ascend and descend to avoid the friction with the steel piles.

A segmental-appendage-free robot comprises an outer framework and electromagnetic two-way drive units. The outer framework comprises a spine, ribs, a main connecting column, magnetic suspensions, an auxiliary connecting column and a bottom board. The main connecting column is arranged at one end of the spine, the auxiliary connecting column is arranged at the other end of the spine, and a cylindrical structure is formed by the spine and the ribs. Each electromagnetic two-way drive unit comprises a coil, a coil support, a nail column, a reducing spiral spring and a cover barrel, and the coil is wound around a coil winding column. The two electromagnetic two-way drive units are arranged and arranged on the two magnetic suspensions. An electromagnetic drive trunk unit is formed through each electromagnetic two-way drive unit and the outer framework. The electromagnetic drive trunk units are sequentially connected. The adjacent electromagnetic drive trunk units on the same side are connected. By the adoption of the robot, an electromagnetic drive manner is simple, efficient and easy to control, the electromagnetic acting distance is effectively prolonged through electromagnetic telescopic body design adopting a leakage flux principle, and through two-way telescopic design, the acting distance is further prolonged, and a moving effect is further improved.

The invention relates to a snorkeling dredging pipe. The snorkeling dredging pipe comprises a pipe body, and a floating body which is mounted at the outer part of the pipe body, wherein the floating body comprises a hollowed-out floating barrel; a sleeve ring which fits the pipe body is arranged on the lower bottom surface of the floating barrel; a piston plate is glidingly arranged in the floating barrel and divides the floating barrel into a flotage chamber and an adjusting chamber; an air guide pipe of which the end part extends out of the sea surface is mounted on the flotage chamber; a flow guide hole which communicates with seawater is formed in the adjusting chamber; a control rod which is driven through a control motor is mounted between the floating barrel and the piston plate; awater pressure sensor is mounted at the outer part of the floating barrel; and the water pressure sensor is electrically connected to a control chip in the control motor. The snorkeling dredging pipeis novel and unique in structure, and is capable of effectively avoiding erosion and damage caused by sea wave and wind, so that the service life of the floating body can be prolonged; and the dredging work can be effectively efficiently performed for a long time.

The invention discloses a high-speed branching device of a stranding machine. The branching device comprises a carriage, a branching plate and a reserved plate, wherein the branching plate and the reserved plate are successively fixed on the carriage along the copper wire inlet direction, each of the branching plate and the reserved plate is provided with wire through holes, a wire inlet unit is fixed at the axial center of the reserved plate, and the carriage is provided with two connecting rods in a sliding manner. The moving ends of the two connecting rods are connected with each other via an adjusting loop, a wire inlet is formed in the adjusting loop, the upper portion of the wire inlet is provided with an inner conical surface, and the lower portion of the wire inlet is provided with balls. The inner wall of the wire inlet unit is rotatably provided with an adjusting ring whose internal diameter is the same with that of the wire inlet unit, an arc chute is formed in the outer wall of the wire inlet unit, and a push rod is connected with the adjusting ring by penetrating the arc chute. The adjusting loop is slidably arranged on the carriage via the connecting rod, thus, the adjusting loop can be slid according to the practical diameter of copper wires, and wearing between the copper wires and the wire inlet as well as an upper inlet of the twisting machine can be reduced.

The invention relates to a separation recycling system and a separation recycling process of wide size fraction coal slime and belongs to the field of coal separation processing. The problems that theseparation recycling process of the wide size fraction coal slime in the prior art is complicated in technological process, and high in cost and energy consumption, and causes harm to the environmentare solved. The separation recycling system is provided with a stirring bucket, a hydraulic powder flotation machine, a three-product cyclone classification screen, an ore pulp preprocessor and a flotation column along a separation pipeline; a first buffering bucket is arranged between the hydraulic power flotation machine and the three-product cyclone classification screen; a second buffering bucket is arranged between the three-product cyclone classification screen and the ore pulp preprocessor; and the ore pulp preprocessor is connected with the flotation column. The separation recycling process includes the following steps that the coal slime in flotation is supplied into the stirring bucket, and is stirred and deployed into ore pulp to be supplied into the hydraulic power flotation machine; first time classification is performed; coarse particle concentrate, micro fine particle coal slime and fine particle coal slime are classified; and accurate separation of the fine particle coal slime is performed. The separation recycling system and the separation recycling process of the wide size fraction coal slime achieve wide size fraction and short process continuous coal slime separation.

The invention discloses a loom used for producing sisal cloth. The loom comprises a frame, a warp feeding mechanism, an opening mechanism, a weft inserting mechanism, a beating-up mechanism and a cloth collecting mechanism; the warp feeding mechanism, the opening mechanism, the weft inserting mechanism, beating-up mechanism and the cloth collecting mechanism are arranged on the frame; the beating-up mechanism includes a transmission mechanism and a beating-up device, the beating-up device is detachably arranged on the transmission mechanism, and under driving of the transmission mechanism, the beating-up device moves linearly and reciprocatingly to push weft yarn and warp yarn to be woven into fabric. An existing loom is modified to be suitable for industrial production of high-density sisal cloth; meanwhile, for features of the sisal cloth, structure and spacing of reeds are improved, fluff due to friction of the yarn and the reeds is avoided in production the high-density sisal cloth, and mutual abrasion of the yarn and the reeds is reduced; the look is simple in structure, high in production efficiency and capable of producing the high-density sisal cloth.

The invention discloses a defeatherer which comprises a body and a headpiece detachably connected to the body. The headpiece comprises a headpiece base connected to the body in a matched mode. A rotating base is movably connected to the headpiece base. A driving device driving the rotating base to rotate is arranged inside the body. A feather clamping assembly is fixedly to the axial direction of one end of the rotating base. The headpiece base is fixedly connected with a cam which drives the feather clamping assembly to move when the feather clamping assembly rotates along with the rotating base. The feather clamping assembly comprises a static piece fixed to the rotating base and a movable piece moving relative to the static piece under the effect of the cam. A feather clamping opening for clamping feather is formed between the static piece and the movable piece. In the process of rotating rotation of the rotating base, the rotating base drives the static piece and the movable piece to rotate around the cam, the movable piece performs clamping and stretching reciprocating motion relative to the static piece under the effect of the cam profile curve, feather clamping action is achieved, and clamped feather can be removed along with rotation of the rotating base.

The invention relates to a special chain drive pumping unit, comprising a frame, a balance box, and encircling chains of a driven chain wheel and a drive chain wheel; one end of the connecting rod is connected with special chain links of chain suspension loads, the other end of the connecting rod is articulated with a hanging seat of traction rope and the balance box, one end of the traction rope is wrapped with the eccentric wheel articulated on the hanging seat of the traction rope, the other end of the traction rope goes around a crownpulley and is connected with a polish rod at the mouth of a well by a rope hanger, and a motor shaft is connected with a first transmission. The pumping unit is characterized in that two connecting rods are respectively positioned on both sides of the balance box; a second transmission is arranged and connected with the first transmission; the chain is a special chain formed by sequentially articulating a plurality of chain links and a plurality of special chain links; the special chain links of suspension loads are placed in the middle; both the drive chain wheel and the driven chain wheel consist of chain wheels and a plurality of chain teeth attached by wear layers, and the chain teeth are fixed on the chain wheels. The invention has the advantages that the structure is reasonable, the motion is smooth, the impact of reversion of chain links suspension loads can be prevented, energy can be saved and cost can be lowered and the like.

The invention discloses an oil extraction method of weight adding under a pump and an oil well pump with weight adding under the pump, used in pumping units and oil pumped wells in the petroleum industry. In the oil extraction method of weight adding under the pump, a weight adding bar is connected under an oil well pump plunger assembly to reduce the bend and the deformation of a pumping rod string. The oil well pump with weight adding under the pump comprises a pump cylinder assembly, the plunger assembly and an auxiliary mechanism under the pump. The plunger assembly is provided with a liquid outlet valve and a liquid inlet pump, an upper plunger and a lower plunger are connected with a connection bar through a plunger lower joint to connect the weight adding bar under the plunger assembly. The method uses the liquid inlet valve with an offset structure outside the pump while adding weight under the pump, thereby lightening the eccentric wear of pipes and bars and reducing the stroke loss. Due to the weight adding bar arranged under the pump, the pumping rod is kept in the straightening state all the time under the action of gravity, thereby lightening the mutual abrasion of the pipes and the bars. The weight adding under the pump can reduce the elastic bending and deformation of the pumping bar string, thereby reducing the stroke loss and enhancing the filling factor of the oil well pump.

The invention discloses a condenser for a new energy automobile air conditioner. The condenser comprises a seal cover, hinges, a sundries box, a condenser fixing frame, heat dissipation fins, chutes,fixed vanes, fixed tubes, rifled pipes I, springs II, rifled pipes II, a pull handle, a fixed ring, a rubber sleeve, springs I, a heat insulation cotton ring, a copper pipe, a connecting plate, a brush body and sliders. As the connecting plate and the brush body are arranged on the surface of the condenser, the side, facing an automobile driving direction, of the condenser is cleaned. Thus, the condenser is prevented from being mounted at the front end of an automobile for a long term. The condenser is prevented from unsmooth heat dissipation caused by the reason that lots of sundries are deposited on the surface of the condenser with airflow in a driving process. The service life of the condenser cannot be shortened while the using effect of the automobile air conditioner is not influenced.

The invention discloses a lightning arrestor used for the roof of a high-rise building. The lightning arrestor comprises a foundation pier and a casing pipe. A protrusion is arranged on the upper section of the inner wall of the casing pipe. An inner thread is arranged on the inner circumferential wall of the protrusion. The lower section of a connecting rod is matched with the protrusion through the thread. The upper section of the connecting rod is provided with a horizontally-arranged limiting pipe. A cylindrical direction-changing block is fixed to the middle portion of the limiting pipe. A straight hole is formed in the middle of the direction-changing block in the axis direction of the limiting pipe. Gaps are reserved between the two side walls of the direction-changing block and the inner wall of the limiting pipe. By adoption of the lightning arrestor, large-scale building roof lightning protection treatment can be fast achieved, the overall building attractiveness is not affected, and meanwhile, the difficulty and workload for laying a lightning strip are reduced; concrete is poured into a plastic pipe with a certain diameter, the casing pipe is pre-buried in the plastic pipe, the plastic pipe is directly removed after the concrete is solidified, and the foundation pier is formed; and the foundation pier is manufactured through drainage pipelines on a construction site and the building concrete, and the lightning strip laying cost is greatly lowered.

The invention relates to an intelligent wire drawing machine capable of reducing metal wire abrasion and a control method thereof. The intelligent wire drawing machine comprises a base, a supporting frame, a rotating frame, a first driving motor, a first take-up barrel, a reciprocating moving device and a wire drawing die, the supporting frame is fixed on the base; the center of the rotating frame is connected with the upper end of the supporting frame; the first driving motor is fixed on the rotating frame; the center of the side face of the first take-up barrel is fixed to a rotating shaft of the first driving motor, and a first fixing clamp is arranged on the first take-up barrel; the reciprocating moving device is arranged on the base and located on the side of the first take-up barrel, and the moving route of the reciprocating moving device is parallel to the rotating axis of the first take-up barrel; and the wire drawing die is fixed at the upper end of the reciprocating motion device. According to the intelligent wire drawing machine capable of reducing metal wire abrasion and the control method thereof, and the wire drawing die is arranged to be movable, so that the technical problem of how to reduce metal wire abrasion is solved.

The present invention is provided with a contact switching mechanism having a movable contact member that is bent into a U shape, allowed to press and contact a fixed contact member side, and supported so as to freely tilt and move thereon. In this mechanism, a switching operation is carried out between contacts by reversing the movable contact member in a see-saw manner, with a tilt-movement fulcrum portion of the movable contact member being always in contact with the contact portion of the common fixed contact member. The movable contact member is allowed to have a spring function conformed to elastically shift in response to a switching operation in addition to a contact function that is inherent to the movable contact member so that it is possible to provide a switch having high reliability, such as a push-button switch and a rotary-lever switch, which can cut costs by reducing the number of parts, and ensure a superior contacting property.

The invention discloses a using method of a fastening base of an equipment monitor. The using method includes the following steps that the ends of two fixing plates are placed on a rodlike supporting structure; a dovetail installing base formed by the two fixing plates and a bottom plate is fastened to the outer circumferential wall of the drying supporting structure through hoops; according to the placing height of the monitoring equipment, a base of the monitoring equipment is fixed to threaded holes corresponding to the placing height through bolts to complete installation of the monitoring equipment; a connecting plate can be directly welded to the monitoring equipment, the side wall of the connecting plate is matched with a dovetail groove through protrusions so that the connecting plate and the bottom plate can be connected, and the monitoring equipment can be taken or placed just by taking out or putting the connecting plate into the dovetail groove. In the using process, the two hoops can ensure that multiple force bearing points exist between the installing base and the supporting structure, namely ensure stable placing of the monitoring equipment, and avoid the loosening phenomenon.

The invention discloses a wear-resistant anticorrosive sucker-rod coupling, relates to a coupling for connecting a sucker rod and aims to provide a wear-resistant anticorrosive sucker-rod coupling which has a high rate of finished products in the production process, is wear-resistant and anticorrosive when in use, and has low wear to an oil pipe. The wear-resistant anticorrosive sucker-rod coupling comprises a matrix and a spray welding coating spray-welded on the surface of the matrix. Alloy powder used by the spray welding coating comprises the following components in percentage by mass: 90 percent to 95 percent of nickel-based alloy powder and 5 percent to 10 percent of MoS2 powder, wherein the nickel-based alloy powder comprises the following components in percentage by mass: 0.2 percent to 0.5 percent of C, 2.0 percent to 4.0 percent of Si, 4.0 percent to 6.0 percent of B, 16 percent to 23 percent of Cr, less than or equal to 5 percent of Fe and the balance of nickel.

The invention discloses a connecting rod type mold closing type injection mold. The connecting rod type mold closing type injection mold comprises a fixed base, a sliding base, guiding rods, fixing blocks, a front mold, connecting blocks, a back mold, a pouring gate, a first air cylinder, a movable block, a first connecting rod, second connecting rods, third connecting rods, a second air cylinder,a first piston rod, an air inflator, a cushion plate, reinforcing rib plates, a cutter, a vacuum pump, a first connecting pipe, a straight pipe, an oil tank, an oil pump, an oil pipe, a three-way pipe, second connecting pipes, an oil filling port, a groove, an annular pipe, sponge rings, a circular hole, a spring, a piston rod, a limiting groove, a limiting ring, a second piston rod and a piston.According to the connecting rod type mold closing type injection mold, the structure is reasonable, a cutting structure is arranged, therefore, when the front mold and the back mold are separated, excess materials at the pouring gate can be automatically cut by means of force generated when the front mold and the back mold are separated, the subsequent machining process of injection molding partsis reduced, and the machining efficiency is improved.