40results about How to "Reasonable clearance" patented technology

The invention discloses a scroll refrigerating compressor. More than three backing rings are fixedly arranged between the upper end face of an upper support and a high-low-pressure partitioning plate, a through hole is formed in a fixed scroll, the backing rings pass through the through hole in the fixed scroll, the upper surface of a fixed scroll backing plate is lower than the upper end faces of the backing rings, two annular grooves are formed in the fixed scroll backing plate, sealing rings are placed in the annular grooves, a backpressure cavity is formed among the upper surface of the fixed scroll backing plate, the lower end face of the high-low-pressure partitioning plate and the two sealing rings and is communicated with a compression cavity through a gas introducing hole, bolts penetrate through the high-low-pressure partitioning plate and through holes of the backing rings to be screwed in bolt holes of the upper support, and the high-low-pressure partitioning plate, the backing rings and the upper support are fixed together. The scroll refrigerating compressor has the beneficial effects that through reasonably designing the sizes of the backing rings, the upper support and the fixed scroll, a reasonable gap can be obtained between the high-low-pressure partitioning plate and the fixed scroll, the ideal pre-deformation of the sealing rings is promoted to be generated, and the backpressure cavity is sealed.

The invention, belonging to automobile repair tool, discloses an effort-saving wrench socket, specifically an effort-saving wrench socket and a manufacturing method thereof, the socket is arranged at the periphery of a planetary carrier gear set, the lower part of the inner wall of the socket and the planetary carrier gear set constitute a transmission pair, the upper part of the socket is in sliding fit with a front output large lever set, and a support arm is arranged on the surface of the outer wall of the socket; and the support arm adopts a complex structure in which connecting sheets are provided with inner support frames in a clamping manner. The manufacturing method thereof comprises the technological steps of: manufacturing the connecting sheets with steel plates, forming the supporting arm with complex structure by means of the fixed connection of the inner support frames; manufacturing the socket and achieving fit connection between the supporting arm and the socket, and assembling the planetary carrier gear set and the front output large lever set on the inner wall of the socket, etc. The wrench socket according to the invention solves the problems of large possibility of gear hobbing and impact on service life of product in the prior art. The wrench socket also has the advantage that the supporting arm has large bending strength and long service life.

The invention discloses one method for adjusting the gap between a scraper and a screen of a rock debris drying machine. The method includes the steps that the axial distance of a spiral drum is calculated according to the current positions of the scraper and the screen and the current gap between the scraper and the screen, the screen is detached, and a fixing assembly is loosened; a power mechanism is started, and a moving assembly drives the spiral drum to axially move; the power mechanism is stopped, and the fixing assembly and the screen are installed. The invention further discloses another method for adjusting the gap between the scraper and the screen of the rock debris drying machine. The method includes the steps that the axial distance of a spiral drum is calculated by judging the current positions of the scraper and the screen and the current gap between the scraper and the screen, and the screen, a bolt I and a flange are detached; the spiral drum is manually moved in the direction of a drive shaft key groove, and the spiral drum moves in the axial direction of a drive shaft; then the flange is installed on a hollow guide block, the contact faces of the flange and the spiral drum are tightly attached, the bolt I is screwed up to enable the flange and the spiral drum to be firmly fixed, and finally, the screen is installed on a supporting frame. The methods are simple.

The invention discloses an oil tube mounting method of an iron support fuel sensor, a nosed structure of the iron support fuel sensor and a mold used in the method. The method includes, firstly, punching a metal plate punched hole in a flange; secondly, placing a formed oil tube into the metal plate punched hole; thirdly nosing the metal plate punched hole through the nosing mold to form the oil tube nosed structure and enabling the diameter of the oil tube nosed structure to be smaller than that of the oil tube; lastly, performing welding, fastening and sealing. According to the oil tube mounting method of the iron support fuel sensor, the nosed structure of the iron support fuel sensor and the mold used in the method, by assembling the oil tube and the metal plate punched part through the nosing mold, attractive appearance as well as accurate position and dimension can be obtained, products can meet customer requirements, and the production efficiency can be effectively improved; nosing can be directly performed in a mechanical mode instead of a manual mode, so that material consumption can be reduced, production costs can be saved and good practicality can be obtained.

The invention relates to a probe protecting dynamic balance mechanism of a high-temperature industrial television in a small heating furnace. An adaption piece is fixed on the surface of a motion mainboard, and load-bearing wheel axles are respectively fixed on two ends of the motion mainboard; two load-bearing wheels are arranged on each load-bearing wheel axle; a substrate is provided with rectangular through slots along the central line of a rectangular board; two auxiliary wheel axles are fixed on the surface of a vertical motion mainboard; two auxiliary wheels are fixed on each auxiliary wheel axle; two grooves are symmetrically arranged on two side surfaces the rectangular vertical motion mainboard; centering wheel axles provided with centering wheels are respectively fixed in the two grooves; the vertical motion mainboard penetrates through the rectangular through slots on the substrate and is fixed on the vertical motion mainboard horizontally arranged on the substrate; the four load-bearing wheels are in contact fit with a top panel of the substrate; the two centering wheels are respectively arranged in the rectangular through slots on the substrate and are in clearance fit with the rectangular through slots; and the four auxiliary wheels are in contact fit with a bottom panel of the substrate. The probe protecting dynamic balance mechanism effectively overcomes the thermal deformation at high temperature, and the aligning mechanism can limit the moving object in the X-axis direction and the Y-axis direction so that a shooting probe can stably and accurately run to and fro in the Z-axis direction.

The invention discloses a corn husking and threshing combined machine. The corn husking and threshing combined machine comprises a rack (1), a power device (30) fixed on the lower portion of the rack (1) and a power transmission device. The corn husking and threshing combined machine is characterized in that a husking device and a threshing device are parallelly installed on the middle portion of the rack (1), a middle baffle (50) for isolating the husking device and the threshing device is arranged between the husking device and the threshing device, and the bottom of the middle baffle (50) is fixed onto the rack (1); a feeding hopper (13) is installed at the front end of the top of the rack (1), the feeding hopper (13) is internally provided with a movable baffle (47), and the movable baffle (47) is hinged onto the middle baffle (50) through hinges (46); the husking device comprises husking pair rollers installed on the rack (1) and composed of a stripping roller (17) and a feeding roller (18); the threshing device comprises a threshing rolling cylinder (37) installed on the rack (1). The corn husking and threshing combined machine achieves multiple uses in one machine, the machining, the maintenance and the use are simple and convenient, and the husking and the threshing are cleaner.