38results about How to "Small movement gap" patented technology

In a scraper device for a milling drum ( 2 ) mounted in a construction machine, with a scraper blade ( 10 ) arranged in a height-adjustable manner behind the milling drum ( 2 ) when seen in the direction of travel, which can glide on the surface ( 3 ) milled or to be milled by the milling drum ( 2 ), where the scraper blade ( 10 ) is guided in lateral guides ( 12 ) in a height-adjustable manner relative to the milling drum ( 2 ), and where first centering devices ( 14 ) are provided which center the scraper blade ( 10 ) between the guides ( 12 ) with small lateral play of movement when in a raised position, and which allow a greater lateral play of movement of the scraper blade ( 10 ) when the scraper blade ( 10 ) is in a lowered working position, it is provided that the second centering devices ( 20 ) act upon the upper end ( 16 ) of the scraper blade ( 10 ), restricting the lateral displacement of the scraper blade ( 10 ) at the upper end ( 16 ) in case of a lateral movement of the scraper blade ( 10 ) in the guides ( 12 ).

The invention discloses an automobile hopper elevator for automobile making. The automobile hopper elevator comprises a machine frame; multiple clamping heads are arranged on a chassis of the machine frame; a double-shaft extension motor is adopted for elevating power of the elevator; transmission devices on the two sides of the double-shaft extension motor are completely symmetrical and are connected with worm reduction gears through two couplings; the worm reduction gears are installed on the machine frame; elevating lead screws are sleeved with center holes of the worm reduction gears; the elevating lead screws are fixed in vertical pipes of the machine frame through a pair of bearings; guide sleeves of elevating pipes are made of polytef. The automobile hopper elevator for automobile making is simple in structure, convenient to use, stable in work and firm in clamping.

The invention discloses a special automobile rubber grinding machine for a rubber covered roller. The special automobile rubber grinding machine comprises a lathe head and a lathe bed which are sequentially connected, wherein the lathe head is provided with a headstock, the lathe bed is provided with a tailstock, and a workpiece is fixed between the headstock and the tailstock; the lathe bed below the workpiece is provided with a large planker, a sliding block and a gear are arranged on the large planker, the lathe bed is provided with a linear guide rail and a rack, the sliding block is matched with the linear guide rail, and the gear is matched with the rack; the large planker is provided with a premedial planker and a postmedial planker which can move on the large planker, the premedial planker is provided with a knife rest, and the postmedial planker is provided with a belt sanding machine. According to the special automobile rubber grinding machine, the firmness between a bonding agent and a central spindle can be guaranteed, a traditional sand blasting technology can be replaced, and the surface is not needed to be washed by any solvent, so that the balance of the central spindle can not be damaged, the production efficiency can be improved, the cost is reduced and the labor force is saved, and the key is that the bonding between the rubber and the central spindle can be reliably guaranteed. According to the special automobile rubber grinding machine, the consumable materials can be saved and the environment pollution can be reduced.

The invention discloses a high-precision rapid positioning device for an automatic production line. The high-precision rapid positioning device is composed of a moving device, a guide mechanism, a position detection sensor, a sensor trigger block, a fixed supporting plate, a concave positioning block, a concave positioning groove, a transmission assembly and a ground fixing base, the position detection sensor is arranged on the moving device, moreover, whether the moving device reaches the target position or not is detected and judged through the sensor, after the moving device reaches the pre-stop position, the position detection sensor sends a feedback signal to automatically control the moving device to stop moving so as to realize one-time automatic positioning, the transmission assembly adopts an air cylinder as a driving element, a linear bearing is used for reducing the movement gap of a guide shaft, the guide shaft rolls in the linear bearing in an interference fit mode, no radial gap exists, the air cylinder pushes the concave positioning block to be in coaxial fit with the concave positioning groove to be rapidly positioned in the moving direction of the moving device ina high-precision mode. The high-precision rapid positioning device has the characteristics of being high in automation degree, reliable in positioning and good in guiding performance.

The invention discloses a sealing paste, and belongs to the technical field of chemical engineering in order to solve the problem of influence of unable formation of a thick and stable oil film due to poor adhesiveness of present sealing pastes on the sealing performance of devices. The sealing paste comprises a common grease and a copper-based composite powder material uniformly dispersed in the common grease, a mass ratio of the copper-based composite powder material to the common grease is 0.5-20:100, and the particle size of the copper-based composite powder material does not exceed 30[mu]m. The sealing paste can greatly improve the adhesion performance of the sealing paste on the working surface of a machine to form a thick and stable oil film in order to improve the sealing performance.

The invention discloses an electronic mechanical brake device. The device comprises a brake clamp body, a ball screw is arranged in the brake clamp body, and is sleeved with a ball screw nut, the ball screw nut is sleeved with a sliding screw nut, a pair of springs are symmetrically arranged at the right end of the ball screw nut in the axial direction, the other ends of the springs are connected with an armature, the armature is matched with an electromagnetic clutch on the right side of the ball screw nut, the left side of the brake clamp body is connected with a box body through a screw, a motor is arranged above the box body, a spiral bevel gear is connected to an output shaft of the motor, a planet gear is connected to the lower portion of the spiral bevel gear, and a sun gear in the planet gear is rotatably connected with the left end of the ball screw. According to the device, through a ball screw nut pair and a sliding nut screw pair, traveling and parking can be comprehensively achieved, the traveling brake time can be shortened, meanwhile, the parking self-locking problem can be ingeniously solved, and the whole structure is compact and concentrated.

The invention discloses a rotary quantitative taking device, which comprises a storage tank, a measuring bucket and an elastic mounting part. The storage tank has a tank cavity and a mating surface at the bottom thereof, and the tank cavity is divided into phases and partitioned by a partition plate. The powder inlet chamber and the powder outlet chamber, the measuring bucket is pressed against the fitting surface by the elastic force of the mounting part and can rotate around the axis of rotation against the fitting surface, the measuring bucket has at least one Circle quantitative groove, each circle quantitative groove includes at least two mutually isolated quantitative grooves, the measuring bucket has at least two working positions on its rotation track, and at least one quantitative groove communicates with the powder inlet chamber in each working position. At least another quantitative groove communicates with the powder outlet chamber. Through the elastic mounting parts, the measuring bucket is always pressed against the mating surface of the storage tank with proper elastic force, which can effectively reduce the movement gap between the measuring bucket and the storage tank and make the measuring bucket move smooth.

The invention discloses a closed switch tube, comprising an insulator (310), a first conductor (320), a first support (330), a second conductor (340) and a third conductor (370). One end of the second electrical conductor (340) is disposed in the cavity formed by the insulator (310), the first electrical conductor (320) and the first support (330) and can be connected with the The first conductor (320) is contacted or separated, characterized in that the third conductor (370) is sleeved on the outside of the insulator (310) and is fixedly connected with the second conductor (340). A second elastic member (380) is arranged between the third electrical conductor (370) and the first support member (330), and the closed switch tube of the present invention is not affected by external force, and the internal conductive members are always in a constant state. Open state, can meet different applications.

The invention provides an engine speed regulating device which comprises a shifting fork, a pull rod, a rotating speed setting part, a speed regulating lever and a fixing frame, wherein the shifting fork is movably connected with the speed regulating lever; the shifting fork is provided with a ball head and an adjusting part; the ball head is hinged with the pull rod; the rotating speed setting part is movably connected with the fixing frame; the rotating speed setting part is provided with a rocker arm and a crank arm; the speed regulating lever comprises a first connecting part and a second connecting part; the first connecting part is connected with the adjusting part through a correction spring; the second connecting part is connected with the crank arm through a speed regulating spring; and the fixing frame is fixedly connected with the engine. The engine speed regulating device has full-range speed regulating and two-pole speed regulating functions, simple structure, fewer parts and small movement clearance, and the phenomenon of response lag of the speed regulating device can be eliminated; and due to multiple stamping parts, die castings and standard parts, the engine speed regulating device is convenient for mass production.

The invention discloses a three-dimensional spherical compensator with a sealing device. The three-dimensional spherical compensator with the sealing device comprises a ball head connecting tube and aliner tube. The ball head connecting tube comprises a first ball head connecting tube body and a second ball head connecting tube body. A middle connecting tube comprises a first connecting tube bodyand a second connecting tube body. The first ball head connecting tube body is arranged in the first connecting tube. A first flange is arranged at the left end of the first connecting tube body. A first filler chamber is arranged between the first ball head connecting tube body and the first connecting tube body. A first pressing cover is arranged on the left side of the first filler chamber. The first pressing cover is connected with the first flange through bolts. Skeleton sealing filler is arranged between the outer surface of the liner tube and the second connecting tube body. Accordingto the three-dimensional spherical compensator with sealing device, the movement gap of the compensator is narrowed because of the sealing filler, dust is stopped from entering the compensator at thesame time, and therefore, the axial displacement movement is smoother. The three-dimensional spherical compensator with the sealing device is applied to pulverized coal conveying pipelines, and because both the deflection angle and the axial displacement of the compensator are large, the displacement generated by pipeline equipment during running can be effectively compensated and absorbed. The three-dimensional spherical compensator with the sealing device is simple in structure, convenient to use, practical, long in service life, and very convenient to make, install and maintain.

The invention discloses a rotary hopper mixer, which comprises a left frame, a right frame and a rotating shaft, the rotating shaft is arranged on the left frame and the right frame, and a driving device is arranged on the left frame , the right frame is provided with a rotating power transmission device, the left end of the rotating shaft is connected to the driving device, and the right end of the rotating shaft is connected to the rotating power transmitting device through a right connecting flange; the rotating shaft is provided with a mixing device, the angle between the mixing device and the rotating shaft is 25°-35°. The drive device includes a reducer and a left connecting flange, and the rotating shaft is connected to the shaft extension of the reducer through the left connecting flange. The mixing device includes a lifting and tightening mechanism and a mixing hopper, and the mixing hopper is arranged in the lifting and tightening mechanism. The turnover hopper mixer provided by the invention has the advantages of simple installation and maintenance, stable operation, low noise, firm clamping between the mixing hopper and the lifting chassis, and very convenient use.

The invention relates to a machine tooling, particularly to an automatic gluing device. The device is characterized by comprising a base plate, a rubber pool, an adsorption type rolling wheel and an AC gear motor, wherein the rubber pool is arranged on the base plate; the adsorption type rolling wheel is arranged right above the rubber pool, and the cylindrical surface of the adsorption type rolling wheel is in contact fit with the liquid level of the rubber pool; a cylindrical workpiece to be coated is arranged right above the adsorption type rolling wheel, and the cylindrical surface of the adsorption type rolling wheel is matched with that of the cylindrical workpiece to be coated in a rolling manner. According to the invention, the adsorption type rolling wheel is adopted for gluing the cylindrical workpiece to be coated with rubber, the uniformity of the glass fiber cloth surface is ensured; the AC gear motor and the adsorption type rolling wheel are connected through a high-precision coupler, so that repositioning accuracy is high, and moving gap is small; a liftable regulator is used, and when the liquid level of the rubber pool drops, the rubber pool is lifted by only adjusting the liftable regulator, so that the liquid level of the rubber pool rises, thereby realizing automatic feeding and avoiding frequent addition of rubber.

The invention discloses a small-scale high-pressure centrifugal blower. The small-scale high-pressure centrifugal blower comprises a main shaft, a gas inlet housing, a turbine, an exhaust housing, a spiral housing, a vane wheel and a side cover, wherein the gas inlet housing, the turbine, the exhaust housing, the spiral housing, the vane wheel and the side cover are sequentially arranged on the main shaft; the turbine is located in a shell formed by the gas inlet housing and the exhaust housing, and the moving gap between the turbine and the side wall of the shell is smaller than 0.5mm; and the spiral housing is a high-flow velocity type spiral housing, and is used for converting high-temperature gas from the exhaust housing into a volute flow type high-pressure gas to be supplied to the vane wheel. According to the small-scale high-pressure centrifugal blower disclosed by the invention, part of the advantages of an annular blower are applied to the vane wheel and the spiral housing, so that the comprehensive performance of the small-scale high-pressure centrifugal blower is far better than that of a secondary annular blower having many defects, and the outlet pressure can achieve 60kPa; the design of the structure of the small-scale high-pressure centrifugal blower is adopted, so that the blower can be safely operated for a long time.

The invention relates to glue coating equipment, in particular to an automatic glue rolling device for a motor rotor. The automatic glue rolling device is characterized by comprising a bracket bottom board, a glue tank, an adsorption rolling roller and an AC speed reducer motor, wherein the glue tank is arranged on the bracket bottom board; the adsorption rolling roller is arranged just above the glue tank, and the cylindrical surface of the adsorption rolling roller is in contact and matched with the liquid level of the glue tank; the rotor is arranged just above the adsorption rolling roller; the cylindrical surface of the adsorption rolling roller is in rolling match with the cylindrical surface of the rotor; a glass fiber cloth ring is arranged above the rotor, and glass fiber cloth is wound on the glass fiber cloth ring, and the glass fiber cloth ring is fixed on a glass fiber cloth fixing rack via a glass fiber cloth core shaft. The automatic glue rolling device uses the adsorption rolling roller to coat the rotor with glue, can automatically reduce the amount of the glue on the rotor and ensure the uniformity of the surface of the glass fiber cloth; the glass fiber cloth ring is directly arranged above the rotor and matched with the overall device, and the glass fiber cloth is wound after spreading the glue.

The invention discloses a closed switch tube, which comprises an insulator (310), a first conductor (320), a first support member (330), a second conductor (340) and a third conductor (370), and is characterized in that one end of the second conductor (340) is arranged in a cavity formed by the insulator (310), the first conductor (320) and the first support member (330) and can be in contact with or separated from the first conductor (320), the closed switch tube is characterized in that the third electric conductor (370) is arranged outside the insulator (310) in a sleeving mode and fixedly connected with the second electric conductor (340), and a second elastic piece (380) is arranged between the third electric conductor (370) and the first support member (330). According to the closed switch tube, under the condition that no external force is applied, the internal conductive pieces are at a normal open state, and different application occasions can be met.