41results about How to "Good transmission precision" patented technology

The present invention discloses a tire post-inflation apparatus having a novel transmission structure. The tire post-inflation apparatus mainly comprises a vertical column; a first chuck arranged on a first cross beam fixedly connected with the vertical column; and a second chunk arranged on a second cross beam slidably connected with the vertical column relative to the first chuck, wherein the second cross beam is connected with a lead screw through a nut seat, a first chain wheel is sleeved on the lead screw, the first chain wheel and a second chain wheel form a transmission connection, and the second chain wheel is arranged on a motor. According to the present invention, under the premise of meeting of all the functions of the conventional post-inflation, the structure is substantially simplified, the whole work process of the post-inflation is optimized, and the precision and the quality of the tire are improved.

The invention discloses a multi-channel combination filter wheel. In the scheme, a combination of multiple filter wheels is adopted, and a mature high-precision gear transmission technology is used to realize automatic rotation of multiple filter wheels in sequence. High, good transmission accuracy; in addition, the structure of the device can be designed according to the number of filter wheels required, the overall volume is optimized, the structure is compact, and it can be placed in front of the focal plane of the multi-spectral camera to achieve multi-channel and multi-band spectra data collection.

The invention discloses a transmission method and transmission structure for circulating conveying trays. According to the transmission method, the multiple trays are connected with a synchronous beltof a synchronous belt transmission mechanism, under driving of the synchronous belt transmission mechanism, the multiple trays can rotate along a working platform circularly, multiple supporting wheels are arranged on the bottom of each tray, by means of contact cooperation of the multiple supporting wheels and the working platform, the trays and delivery boxes placed on the trays are supported,a guide rail mechanism is arranged on the working platform, a guide wheel mechanism is arranged on the bottom of each tray, and by means of contact cooperation of the guide rail mechanism and the guide wheel mechanisms, precise transmission of the trays is achieved. According to the transmission method and the transmission structure, the supporting performance is good, the transmission precision is high, the transmission structure is simple, and the manufacturing cost is reduced.

The invention provides a high-precision circular grating assembly device, and relates to the field of precision instruments. According to the invention, a grating base presses and fixes a rotary platform to be tested; an upper end cap is disposed on the upper part of the grating base and is fastened and connected to the grating base; the upper end cap is wider than the top part of the grating base; the center of the upper end cap is equipped with a lifting ring; a bearing is sleeved on the upper part of the grating base; a reading head turntable is sleeved on the exterior of the bearing; the upper part and the side part of the reading head turntable are covered with cover caps; the reading head turntable employs an oil lubricated ring sliding surface for axial positioning; the inner side of the reading head turntable is provided with a grating reading head; and the radial inner side of the grating reading head is provided with a grating reflection ring which is sleeved on a conical step of the central part of the grating base, wherein the grating reading head presents a non-contact state with the grating reflection ring in a radial opposite direction, and the grating reflection ring is of annular structure of metallic material and has good resistance to mechanical impact.

A cycloid planetary transmission gear based on line-surface conjugation relates to a cycloid planetary transmission gear which comprises a cycloid pin wheel planetary transmission meshed pair. A smooth curve G(2) is selected on a gear surface of a gear in the meshed pair, the main normal vector direction of the curve G(2) is consistent with the normal direction of the gear surface, and the curve G(2) and the gear surface of another gear in the meshed pair form line-surface conjugation mesh. The gear surface of the gear is a tubular meshed surface which is a sphere family enveloping surface S(3) of which the sphere center moves along an equidistant line G(3), the equidistant line G(3) is a smooth curve which has a distance r from the curve G(2) along the main normal vector direction thereof, the spherical radius of spheres in the sphere family is the distance r between the equidistant line G(3) and the smooth curve G(2), and the r is smaller than the minimum curvature radius of the meshed section of the original gear surface. According to the present invention, through changing the cycloid pin wheel planetary transmission into the line-surface conjugation meshed pair, the meshed process is in the mode of point contact; therefore, the transmission ratio is great, the rigidity is good, the structure is compact, and the transmission accuracy is high. In this way, the mesh approximates pure rolling, so that the sliding ratio can be largely reduced, thereby greatly improving the efficiency, prolonging the service life, simplifying the manufacturing process, and achieving high accuracy.

The invention discloses a transmission method and transmission structure for circulating conveying trays. According to the transmission method, the multiple trays are connected with a synchronous beltof a synchronous belt transmission mechanism, under driving of the synchronous belt transmission mechanism, the multiple trays can rotate along a working platform circularly, multiple supporting wheels are arranged on the bottom of each tray, by means of contact cooperation of the multiple supporting wheels and the working platform, the trays and delivery boxes placed on the trays are supported,a guide rail mechanism is arranged on the working platform, a guide wheel mechanism is arranged on the bottom of each tray, and by means of contact cooperation of the guide rail mechanism and the guide wheel mechanisms, precise transmission of the trays is achieved. According to the transmission method and the transmission structure, the supporting performance is good, the transmission precision is high, the transmission structure is simple, and the manufacturing cost is reduced.

The invention discloses a transmission device capable of regulating the transmission distance, which comprises a section of driving cylinder shaft, at least one section of driving special-shaped shaft, a retainer and second transmission shafts; the driving cylinder shaft is connected with a power source by a power input mechanism; a first stepped shaft is sleeved on the driving special-shaped shaft, and the stepped shaft is connected with a load by a transmission mechanism; at least one of the second transmission shafts is connected with the driving special-shaped shaft by the transmission mechanism; the retainer is connected with the first stepped shaft and the second transmission shafts, so that the axis movement of the first stepped shaft is carried out along the driving special-shaped shaft along with the movement of the second transmission shafts; and the relative distance between the second transmission shafts and the power input mechanism is changed by changing the relative position of the first stepped shaft sleeved on the driving special-shaped shaft.