33results about How to "Achieve leveling effect" patented technology

The invention relates to the technical field of road construction machinery, in particular to a double-roller soft roadbed leveling machine and a use method thereof. According to the double-roller soft roadbed leveling machine and the use method thereof, the technical problem that a tamping machine cannot stably carry out tamping or continuously carry out flattening can be solved. The double-roller soft roadbed leveling machine comprises a convex precision box, wherein the bottom of the convex precision box is provided with a through grounding groove; long grooves are formed in the positions,on the two sides of the through grounding groove, of the bottom of the convex precision box; a continuous transmission leveling mechanism is arranged in the convex precision box; and the bottom of thecontinuous transmission leveling mechanism penetrates through the through grounding groove and extends below the through grounding groove. According to the double-roller soft roadbed leveling machineand the use method thereof, a multi-coupling shaft is matched with a main inclined surface rack wheel, an auxiliary inclined surface rack wheel, a main concave surface wheel, an auxiliary concave surface wheel, a sub-coupling shaft, an arc angle bending shaft, a transmission bevel gear, a coupling bevel gear, a driving coupling shaft and a transmission coupling shaft, so that the simultaneous operation of tamping and leveling is achieved, and the effect of tamping and leveling a foundation is quickly achieved.

The invention provides a long-life aluminum and alloy oil removing activating solution and application, and belongs to the technical field of metal surface treatment. The long-life aluminum and alloy oil removing activating solution is prepared from, by concentration, 25-70 g / L of sodium hydroxide, 5-8 g / L of an addition agent and the balance water. The accumulation amount of the sodium hydroxide in the solution is 140 g / L. Dynamic balance is achieved. The addition agent is prepared from, by concentration, 250-282 g / L of 1,2,5,6 sorbitol or 280-320 g / L of sodium gluconate, 3.5-4.5 g / L of ethylenediaminetetraacetic acid disodium, 4-15 g / L of sodium thiosulfate, 3.5-5.5 g / L of sodium hexametaphosphate, 1.5-3 g / L of sodium pyrophosphate, 1.5-3 g / L of nonylphenol polyoxyethylene ether, 1.5-3 g / L of fatty alcohol-polyoxyethylene ether 0-20, 1.5-3 g / L of sodium diethylhexyl sulfosuccinate, 0.5-1.5 g / L of 2-naphthalenesulfonic acid formaldehyde olymer sodium salt and 25 g / L of sodium hydroxide. The oil removing activating effect is remarkably improved, extruding and machining tool marks are eliminated, and the leveling effect is achieved. Alkali consumption is greatly reduced, and the service life of a bath solution is prolonged by 40-50 times. Production efficiency is improved by more than 25%-30%.

The invention relates to the field of badminton production equipment, in particular to a feather positioning and trimming device for badminton production, comprising a device main body, a limiting plate is fixedly installed on the left upper end of the device main body, a shearing device is fixedly installed on the upper end of the device main body, and the shearing device The shearing wheel is fixedly installed inside, and the baffle plate is set in an arc shape, and the distance from the outside of the shearing wheel is gradually reduced from bottom to top, so that the extrusion plate can be continuously driven to drive the feathers to contact the shearing block. Thereby, the feather is cut by using the cutting block, and when the last feather is cut, the next feather also enters the cutting groove, so that multiple feathers can be cut at one time, greatly improving the cutting efficiency of the feather, Among them, the guide blocks arranged in the shape of a right angle triangle are fixedly installed on the outside of the conveyor belt, so that the efficiency of feathers entering the shearing groove can be improved, and the extrusion plate can be guided into the inner side of the baffle to ensure the normal operation of the shearing wheel.

The invention relates to the technical field of prefabricated parts, and discloses an automatic overturning transportation device for rectangular prefabricated parts, which includes a casing and a mould. A transmission rod is slidably connected to the inside of the casing, and a transmission rod is slidably connected to the left side of the transmission rod. The first slider, the right side of the first slider is provided with an overturning device, the inside of the overturning device is rotatably connected with a first long rod, and a first notch is opened inside the first long rod, and the first long rod A second sliding block is slidably connected inside the rod and in the first notch. In this automatic overturning transport device for rectangular prefabricated parts, the third long bar slides the mold on the control bar onto the surface of the second long bar through the fourth long bar, and when the mold slides onto the first long bar, the first long bar The rod will drive the first block to slide in the second notch, so that the third slider drives the second long rod to rotate through the rack, and pushes the mold from right to left to make the mold turn over on the first long rod, thus achieving The effect of automatic flipping.

The invention provides a method for flattening the plates of ship, which comprises following steps: first, preparing a flat cement ground larger than the plates near the assemble position, and arranging the plates on it; then, rolling the plates with road roller along the soldering channel, while one time can reach the demand. The invention has the advantages that: 1, selecting the road roller to reach the same effect of correct rolling device, and better than the water flattening, which can reduce the cost as 6-10 million yuan; 2, the road roller can be moved to another place to avoid possessing area; 3, the road roller uses diesel oil as power, to reduce the oil consumption; 4, the road roller can be operated by one driver, while the rolling device need more people; 5, the maintenance of road roller is easier than the rolling device.

The invention discloses a paste retaining bar for screen printing, which comprises a pair of vertical end surfaces, a flat bottom surface and a paste blocking surface obliquely placed directly above the bottom surface; the paste blocking surface is composed of a pair of inclined surfaces. Using the slurry bar of the invention during screen printing can make the slurry more evenly distributed, and can improve the process precision, uniformity and stability of screen printing.

The invention relates to the technical field of hand oil, in particular to a high wear-resistant matte hand oil and a preparation method and an application method thereof. The hand oil comprises 15-20 parts of silicone resin, 5-10 parts of modified polyurethane resin, carbon dioxide 3-5 parts of silicon, 8-12 parts of blocked isocyanate, 0.5-1.5 parts of organosilicon feel agent, 0.18-0.4 part of auxiliary and 65-75 parts of diluent. The hand oil has the characteristics of high temperature and humidity resistance, scratch resistance and chemical resistance, and has good adhesion, wear resistance and flexibility.

The invention discloses elevator equipment. The elevator equipment comprises a cage which is provided with a motor; the motor is connected with a drive gear through a transmission mechanism; the drive gear is meshed with a rack arranged in a well frame in a longitudinal direction; and a manual rotation shaft which is used for controlling the cage to lift is arranged on the cage and is connected with the drive gear through a clutch and the transmission mechanism. The elevator equipment has the advantages that 1) the elevator equipment is provided with the manual rotation shaft, so that during power failure of an elevator, the elevator is driven by rotating the manual rotation shaft to lift so as to achieve the leveling effect; the clutch is arranged between the manual rotation shaft and the drive gear, so that two mechanisms are driven in an electronic control or manual operation way to be separated to work, and the mutual influence is avoided; and 2) the manual rotation shat extends to the middle position of the cage through a reducing mechanism, so that a user can operate the elevator equipment conveniently, and labor is saved during operation.