34results about How to "Reduce direct wear and tear" patented technology

The invention provides a monofilament automatic production line, which belongs to the technical field of monofilament production equipment. This fully automatic monofilament production line includes a mixing machine, an extruder, a cooling device, a drafting device, a heat setting device, a winding machine, a cooling device, including a cooling water tank, a cooling roller and a guide sieve plate. The cooling water tank is in the shape of a cuboid Shaped and filled with cooling water, the cooling roller is set in the cooling water tank, and a guide sieve plate is connected to each end of the cooling water tank; the drafting device includes a chassis, seven drafting roller shafts and seven drafting rollers, seven The drafting rollers are sleeved on the outside of the drafting rollers one by one, and one end of the drafting rollers is rotatably connected to the cabinet, and the drafting rollers are linked with each other through gear meshing; the heat setting device includes an oven cover, a pressure roller 1. A square oil tank containing high-temperature oil and a shaping motor fixed on the outer side of the oil tank. An electric heater is installed at the inner bottom of the oil tank, and a setting roller is installed at the upper port of the oil tank. The product quality and production efficiency of monofilament are improved.

The invention discloses a multi-purpose wall switch protection cover, comprising a wall switch and a wall switch protection cover at the outside of the wall switch, wherein the wall switch is embeddedon a wall, the wall switch protection cover at the outside of the wall switch is hinged to a hinge seat through a hinge shaft, and the hinge seat is fixedly disposed at a lower right end of a mounting block. In the multi-purpose wall switch protection cover disclosed by the invention, when the wall switch protection cover is opened, a neck in the surface can be used for placing a mobile phone orthe like, so that the mobile phone can be charged conveniently, multiple groups of airflow holes on a lower surface of the wall switch protection cover can output air to serve as a hair dryer, the lower end of the wall switch protection cover is sealed in a lower end sealing neck through a rubber sealing block, so that the sealing property of the wall switch protection cover is relatively high.

The invention discloses a method for manufacturing an antifouling and antibiosis type yellow croaker net cage, which relates to a method for manufacturing a mariculture net cage. According to the invention, the method for manufacturing the antifouling and antibiosis type yellow croaker net cage adopts a buoyancy force system and a netting system, and is characterized in that the buoyancy force system adopts a combination buoyancy force form of 'an anti-aging high-density polyethylene double-floating-pipe cylindrical frame structure + 18 cube cystosepiments with each edge length of 60cm; the netting system adopts a combination structure netting form of 'a first box longitudinal netting + a second box longitudinal netting + a net cage bottom netting; the net cage bottom netting is assembledon a circular high-density polyethylene pipe support which is wrapped with a layer of polyamide multifilament wrap knitting net; and three cross lacing lines are installed at the bottom of the net cage, a polypropylene rope is tied at the cross point of the cross lacing lines, and two foam float bowls which are externally wrapped by double-layer seawater corrosion protection canva and nylon nets are tied at the other end of the polypropylene rope.

The invention discloses a sheath used for a retractor for spinal surgery, which comprises a plate-shaped sheath body made of elastic material. The plate-shaped sheath body is composed of a plurality of sheath units, and one side of the sheath unit is provided with There is an adhesive layer, and the adhesive layer is provided with anti-adhesive paper, and the other side of the sheath unit is provided with a plurality of trumpet-shaped protrusions, and the openings of the horn-shaped protrusions face the outside of the sheath unit. The invention has the characteristics of simple, quick and safe operation.

The invention provides a self water-replenishing flat valve plunger type extra-high pressure water pump, which mainly comprises a cavity, a cooling unit, a rotating main shaft and a plunger flow-distribution unit. The cooling unit comprises a cooler and a water-replenishing pump; and the plunger flow-distribution unit comprises a flat valve component and a plunger skid shoe component. The plungerskid shoe component divides the cavity into a pressure chamber and an oil lubrication chamber which are independent from each other. The water-replenishing pump presses water at a water pump inlet into the cooler under the drive of the rotating main shaft, then the water flows into the flat valve component from the cooler to cool the oil lubrication chamber and provide low-pressure pressure waterfor the flat valve component, and simultaneously, the plunger skid shoe component performs reciprocating motion under the drive of the rotating main shaft to ensure that the flat valve component performs water absorbing and draining motions through the water pump inlet and a water pump outlet. The self water-replenishing flat valve plunger type extra-high pressure water pump solves the problems of over-high lubricating oil temperature and insufficient self-adsorption when an oil-water separation type hydraulic pump is used on shore, thereby reducing the running cost and improving the service life of the water pump.

The invention discloses a protective valve seat structure of a gate valve, comprising a valve body, wherein through holes are arranged in the valve body, a flashboard mutually matched with the through holes is arranged in the valve body, the upper end of the flashboard is connected with a valve rod arranged on the valve body, a diagonal upper guard plate is fixedly arranged in the through hole at one side of the flashboard, and a separate lower guide plate is fixedly arranged in the through hole at the other side of the flashboard. The invention has the advantages that simple structure and convenient operation are realized; the arranged diagonal upper guard plate can prevent materials from entering a guide rail region of the flashboard during the material falling down process so as to reduce the material stacking phenomenon of the guide rail region of the flashboard, keep the flashboard to flexibly open and close, reduce the direct abrasion of the flashboard from the materials and prolong the service life of the flashboard; the arranged separate guide plate can support the flashboard when the flashboard is closed so as to prevent the deformation of the flashboard due to the material load; simultaneously, the residual materials in the guide rail region of the flashboard can be cleared during the flashboard opening and closing processes, thus the blocking phenomenon of the flashboard can be avoided.

The invention discloses equipment and a method for pushing and rolling molding of a rail. The equipment comprises a thrust device 1, a heating device 2, roller devices 3, reshaping and straightening devices 4, a reheating device 5 and an atomizing and spraying device 6 which are arranged sequentially; and a guide component 7 is arranged on the equipment to guide movement of a steel blank 8. The metal pushing and rolling technology is as follows: at the state that metal reaches the rolling temperature through induction heating, the steel blank is pushed by the thrust device, is rolled, is subjected to reeling and is straightened by longitudinal columns of molds and is heated and subjected to spraying treatment to reach the light rail parameter requirements, the manner combines metal extrusion, rolling and online heat treatment, the investment is lower than that of a traditional manner, the production organization is flexible, the cost is relatively low, the technology is applicable to medium and small-sized enterprises, and other kinds of like profile steel can be produced with the rolling method and changed combination manners and structures of hole patterns.

The invention discloses an energy-conservation and consumption-reduction type obliquely-square net cage for cultivating large yellow croakers, which is used for mariculture. The technical scheme provided by the invention is that the energy-conservation and consumption-reduction type obliquely-square net cage consists of a buoyancy force system and a netting system, and has the characteristics that the buoyancy force system consists of an inside casing and an outside casing, and the inside casing is connected with a first net cage body longitudinal netting through an ultra high strength dyneema rope; the netting system adopts a combination structure netting form of 'a first box longitudinal netting + a second box longitudinal netting + a net cage bottom netting'; the net cage bottom netting is assembled on a pipe support; micropores are punched in a pipe of the pipe support every 1 meter; after being connected with the net cage bottom netting, the second net cage body longitudinal netting extends to an edge line of the net cage bottom netting along netting longitudinally-installed vertical lines from an upper horizontal line of the box longitudinal first netting; a cross lacing line is additionally arranged at the bottom of the net cage, crossed lacing lines are additionally arranged along the diagonal directions of the bottom of the net cage; and a cross point of the two crossed lacing lines along the diagonal directions of the bottom of the net cage is tied by a rope, and a foam float bowl which is externally wrapped by seawater corrosion protection canva and a nylon net is tied by the other end of the rope.

The invention discloses a half-soft state connecting method between copper alloy woven meshes for a cage, relates to connection of copper alloy woven meshes for the cage, and provides a method for splicing the copper alloy woven meshes for the cage. In the method, sea anchoring cloth, ropes, suture lines and tarpaulin rings are adopted, and the method is characterized in that: the sea anchoring cloth, the ropes, the suture lines and the tarpaulin rings are assembled into half-soft state connecting pieces; the half-soft state connecting pieces are arranged between two copper alloy woven meshes; one end of a high-strength polyethylene rope is fixed at a net joint which is 3 meshes away from the splicing edge of the copper alloy woven meshes; the other end of the high-strength polyethylene rope passes through ring plates of the half-soft state connecting pieces and meshes of the woven meshes in turn; the other end of the high-strength polyethylene rope is fixed at a net joint which is 4 meshes away from the splicing edge of the copper alloy woven meshes; and the half-soft state connecting pieces are spliced with the other copper alloy woven mesh in the adjacent two copper alloy wovenmeshes together. The method is used for splicing the adjacent two copper alloy woven meshes in the cage.

The invention relates to a cross-mounting bottom frame device. The cross-mounting bottom frame device comprises a transversely arranged middle beam assembly, four end sleeper beam assemblies connected with the front and back sides of the two ends of the middle beam assembly respectively, two middle sleeper beam assemblies connected with the front and back sides of the middle of the middle beam assembly respectively, a bottom frame center disc assembly arranged on the upper surface of the middle beam assembly between the two middle sleeper beam assemblies, two steering frame center disc assemblies arranged at the lower surfaces of the two ends of the middle sleeper beam assembly between the two end sleeper beam assemblies respectively, two lower side bearings arranged on the upper surfaces of the free ends of the two middle sleeper beam assembly respectively, and four upper side bearings installed on the lower surfaces of the free ends of the four end sleeper beam assemblies respectively, wherein the middle beam assembly is of a fish-belly-shaped box type structure, the end sleeper beam assemblies and the middle sleeper beam assemblies are respectively of a box structure with the fixed end being gradually thinned to the free end, the length of each end sleeper beam assembly in the horizontal direction is larger than that of each middle sleeper beam assembly, and the height of each end sleeper beam assembly in the vertical direction is smaller than that of each middle sleeper beam assembly. The cross-mounting bottom frame device can combine two double-shaft steering frames into a four-shaft steering frame.

The invention provides a plunger type water pump which mainly comprises a cavity body, a rotary main shaft and a plunger distributing unit, wherein the plunger distributing unit comprises a distributing valve assembly, a plunger piston shoe assembly and a supporting valve assembly; the plunger piston shoe assembly divides the cavity body into a high-pressure cavity and a low-pressure cavity mutually independent; the high-pressure cavity is communicated with the liquid of the distributing valve assembly; and the low-pressure cavity is communicated with the liquid of the supporting valve assembly. The plunger piston shoe assembly driven by the rotary main shaft reciprocates to impel the distributing valve assembly and the supporting valve assembly to cooperate, thus the distributing valve assembly sucks and discharges water through a water pump inlet and a water pump outlet, and simultaneously the supporting valve assembly provides liquid lubrication for the rotary unit. High-pressure water output by the extra-high pressure pump of the invention is mutually independent of the low-pressure water used for static pressure supporting and lubrication, thus ensuring the volumetric efficiency of the water pump in the extra-high pressure condition, ensuring the liquid supporting and lubrication of a friction pair in a high-speed heavy-load condition, and improving the service life of the water pump.