40results about How to "Play an adjusting role" patented technology

The invention discloses a turn angle positioning control device for a steering wheel of a full-hydraulic steering system. The turn angle positioning control device comprises a direction rotary valve and a follow-up rotary valve; the direction rotary valve comprises a valve body and a valve spool, an oil inlet and an oil outlet are formed in the outer wall of the valve body, an oil passage is arranged on the valve spool, and the oil inlet and the oil outlet can be communicated with each other or can stop being communicated with each other by the aid of the oil passage; the follow-up rotary valve comprises a valve body and a valve spool, an oil inlet and two oil outlets are formed in the outer wall of the valve body, the two oil outlets are symmetrically arranged, and two oil grooves which are not communicated with each other are formed in the circumference of the valve spool; when the valve spool of the follow-up rotary valve is located at a middle position, the oil inlet of the valve body of the follow-up rotary valve is sealed by the valve spool of the follow-up rotary valve, and when the valve spool is not located in the middle position, the oil inlet of the valve body of the follow-up rotary valve is communicated with one of the oil grooves and one of the oil outlets of the valve body of the follow-up rotary valve. The turn angle positioning control device has the advantages that the turn angle positioning control device only realizes an adjusting effect when the steering wheel turns or when the steering wheel is located in a middle position or when a turn angle of the steering wheel and turn angles of wheels are not aligned, accordingly, the turn angle positioning control device is excellent in reliability, and the performance of the original full-hydraulic steering system is unaffected; as the steering wheel keeps aligned constantly, misoperation of a driver can be reduced, and accidents are reduced.

The invention discloses a posterior scleral reinforcement device and a posterior scleral reinforcement method. The posterior scleral reinforcement device comprises a support pad and at least two support tapes, wherein the inner side of the support pad is a pressing side, the inner end of each support tape is connected with the support pad, a gap part is arranged on the edge of the support pad, and the gap part is positioned between the two support tapes. The posterior scleral reinforcement device and the posterior scleral reinforcement method are used for shortening the length of optic axis of a macular area, reducing the diopter and playing the role of adjusting the eye axis of an eyeball, and are also used for treating high myopia and high myopia with posterior scleral staphyloma, retinoschisis, retinal hole or retinal detachment, and besides, the support pad cannot cause displacement or detachment easily, can fix the posterior scleral in a long term, and has higher reliability, and the optic nerves can be avoided squeezing by means of the gap part.

The invention discloses a cotton spinning frame and an intelligent manufacturing method for increasing the twist in the twist area for textile use. The outer surface of the other end of the processing table is fixedly installed with a first box body, and the upper positions of the front ends of the first box body and the second box body are both movably installed with a first turntable, and the second connecting rod is movably installed on the processing table Above, the outer surfaces of the upper ends of the second box and the first box are fixedly equipped with a support platform, and the inner middle part of the support platform is movably installed with a first screw rod, and the outer surfaces of both ends of the second connecting rod are Both are fixedly installed with lifting spiral rings; the cotton spinning frame for increasing the twist in the twist area has a lifting adjustment structure, so that it can be applied to different sizes of bobbins, and its scope of application is improved. At the same time, it has a dust-absorbing structure to improve its use effect.

A large-scale H-beam drilling die, including an upper positioning template, a lower positioning template, a support plate, a positioning assembly and an adjustment bolt, the upper positioning template and the lower positioning template are provided with a plurality of positioning holes, the size and number of the positioning holes The size, quantity and position of the holes to be processed are the same as those of the H-beam. The support plate includes a left support plate and a right support plate. The upper positioning template is fixedly connected with the left support plate, the right support plate and the lower positioning template to form a template. the main body; the positioning assembly is arranged at one end of the main body of the template, and the adjusting bolts are evenly distributed on the upper positioning template, the lower positioning template and the support plate. A large-scale H-beam drilling die provided by the present invention can simultaneously drill holes on the upper and lower flange plates of the H-beam by setting an upper positioning template, a lower positioning template, a support plate and a positioning assembly, which not only ensures the The requirements for the coaxiality of the holes on the upper and lower flange plates meet the positional accuracy of each hole on the flange plates.

The invention discloses a protection mechanism for soft board processing of circuit boards and a protection method thereof. It comprises a fixed base, a fixed card base, a first slide plate and a second slide plate. A positioning latch is movably socketed between the deck and the fixed base, and two sets of second rollers are movably installed on the side between the fixed deck and the fixed base close to the positioning latch, and the fixed deck and the fixed base There are two groups of first rollers that are movably installed on the other side close to the positioning latch, and the second slide plate is movably installed on the outer surface of the upper end of the fixed deck; a protective mechanism for circuit board soft board processing in the present invention, so that The protection mechanism has multiple adjustment structures, which improves the flexibility of its installation and fixing operation, and at the same time makes it have a rotary adjustment structure, so that it can adjust the use angle of the soft board of the circuit board arbitrarily, which is more practical.

The invention provides a pressure test method for pipe fittings, which is especially suitable for pipes without pipe joints. The pressure test device used includes a T-slot butt welded pipe pressure test platform and a pipe clamping device. During work, the movable gear is placed on the pressure test pipe fittings. On the left and right sides, the adjusting rod passes through the long strip hole on the fixed plate and is threadedly connected with the slider; at the end of the pressure test pipe, install gaskets, pressure test blind plates and I-shaped steel in sequence, so that the end of the adjusting rod is in line with the I-shaped Steel contact, the present invention solves the problems of cumbersome operating procedures, waste of materials and man-hours, low efficiency, poor safety, etc. The operating procedures are simple, and the existing conditions of this platform only need to be matched with the blind plate method suitable for the pipeline The pressure test can be completed by using the flange and the gasket, which solves the problems of waste of materials, labor hours and low efficiency. The safety factor is high. This platform replaces the connection of the Norma pipeline connector, and the fixing effect is more reliable. It can be used flexibly on the pressure test platform.

The invention discloses a hot bending bent pipe fan-shaped corrosion prevention operation device and a corrosion prevention operation method. The device comprises a middle frequency heater, a powder spraying and coating device, a winding device and a rotating shaft, wherein a driving arm driven by the rotation of the rotating shaft is fixedly connected on the rotating shaft, a first arc-shaped bent arm is arranged on the driving arm, a driven arm which rotates around the rotating shaft is hinged on the rotating shaft, a second arc-shaped bent arm is arranged on the driven arm, a bent pipe is fixedly connected between the first arc-shaped bent arm and the second arc-shaped bent arm, the middle frequency heater, the powder spraying and coating device and the winding device are arranged along the position under the circular moving track of the first arc-shaped bent arm, and the bent pipe is sequentially matched with the middle frequency heater, the powder spraying and coating device and the winding device. When the invention is adopted, the efficiency of the corrosion prevention operation of a bend head can be obviously improved, the installation and the dismounting of the bent head are fast and convenient, the corrosion prevention processing effect of the bending head is ensured, and the product qualification rate is improved.