7results about How to "Increase ejection speed" patented technology

The utility model relates to a shield machine technical field, concretely to a shield machine hob cutter with cooling structure, including knife ring, cutter body, end plate, cutter shaft, bearing, sealing washer, baffle, still including cooling structure, the knife ring sets up at the periphery of cutter body, prevents the knife ring from falling off through the baffle fixed cutter body, sets up the bearing in the cutter body, the left and right sides of bearing are provided with end plate, the sealing washer sets up between end plate and bearing, cooling structure includes hole one, hole two and hole five, hole one and hole two set up in end plate, hole five sets up in cutter shaft, this shield machine hob cutter with cooling structure sets up the water flow channel in end plate and cutter shaft, and the water flow flows into through hole five of cutter shaft and flows to hole one through hole two, and the water flow finally sprays out and falls on the surface of knife ring and is helpful to reduce the high temperature caused by the heat generated in the process of tunneling of knife ring, plays the role of protecting knife ring.

The utility model discloses paint canning equipment convenient for cleaning residual materials, which comprises a canning spray head body, a connecting seat and two half compression rings are rotatably arranged on the canning spray head body, the half compression rings are connected with an elastic spiral scraping strip, and the other end of the scraping strip is rotatably provided with a full compression ring and can slide on the canning spray head body. The connecting seat is matched with the convex ring of the canning spray head through the sliding chute for mounting and rotating; and the pawl ring fixed by the connecting seat and the one-way gear ring on the operation ring form a ratchet mechanism to drive the scraping strip. Meanwhile, the canning spray head is provided with a limiting adjusting ring and a fixing block to prevent misoperation, the limiting adjusting ring is automatically reset through matching of an abutting ring, a sliding shaft and a spring, and the limiting adjusting ring is provided with a protection plate to improve operation safety. The spray head effectively solves the problem of residual material cleaning, improves the paint canning efficiency and quality, and guarantees the operation safety.

The utility model discloses a kind of punching device for printing packaging, it is related to punching device technical field, including operation platform, the upper portion of operation platform is provided with drill bit and fixed box, fixed box is around the outside of drill bit;The outside of fixed box is slidably provided with sliding box, one side of sliding box is provided with air supply cavity, jet groove for jetting high-pressure gas is opened on the inner wall of sliding box, and the jet groove is communicated with air supply cavity;Air supply pipe is communicated on air supply cavity, and air bag and solenoid valve are installed on air supply pipe;Suction cavity is provided on the other side of sliding box, and suction groove for suctioning debris is opened on the inner wall of sliding box.The punching device for printing packaging, by setting fixed box, sliding box, air bag and the like structure, packaging material is pressed tightly, avoid packaging material to appear to shake and incline, improve the accuracy of punching, simultaneously, debris is blown off and suctioned cleaning, and intermittently improve the jet speed of cooling gas, improve punching efficiency.

The utility model discloses a fuel gas ejector and a burner, the fuel gas ejector comprises an ejector main body, a fuel gas inlet, a fuel gas outlet, a fuel gas inlet and a fuel gas outlet, the ejector main body is internally provided with a fuel gas channel in a penetrating manner; and the air injection guide piece is arranged at one end of the ejector main body, and the diameter of the air injection guide piece is gradually reduced in the direction away from the ejector main body. According to the fuel gas ejector provided by the utility model, when the fuel gas ejector ejects fuel gas, as the diameter of the air ejection guide piece is gradually reduced, compared with an air ejection guide piece with the same diameter, the fuel gas ejection speed is higher, more air is ejected, and the primary air ejection capability is better; the fuel gas ejector can guarantee the fuel gas ejection speed to the maximum extent and improve the air ejection capacity to the maximum extent, has positive and obvious effects on the combustion working condition and the heat efficiency index, and is simple in overall structure.

This invention discloses a hybrid powertrain transmission device coupling an engine and an electric motor, including an engine, a generator, and a drive motor. A rotational transmission mechanism is provided between the drive motor and the wheels. A heat dissipation protection component is provided on the gearbox of the rotational transmission. The heat dissipation protection component includes a heat dissipation fin plate disposed inside the gearbox, an air duct communicating with the outside of the gearbox, and a heat dissipation fan and a lubricant spraying assembly disposed inside the air duct. The air duct is connected to the airflow channel of the heat dissipation fin plate. When the heat dissipation fan is working, the airflow generated flows through the heat dissipation fin plate to dissipate heat inside the gearbox. At the same time, the generated air pressure drives the lubricant spraying assembly to spray lubricant at the gear meshing position. In operation, the invention enables air to continuously flow through the heat dissipation fin plate by turning on the heat dissipation fan, thereby dissipating heat from the gearbox cavity and protecting the gears.

This utility model discloses a spray mechanism for a spray drying tower, relating to the field of spray drying tower technology. The spray mechanism includes a motor and a centrifugal disc connected to the motor's output end. It also includes a flow guiding device vertically positioned in the center of the centrifugal disc. The flow guiding device has a first through-hole vertically formed inside and multiple second through-holes formed on its outer side, all of which communicate with the first through-hole. A liquid inlet pipe is connected to the lower end of the first through-hole. Multiple circular holes are formed on the outer surface of the centrifugal disc. By adding a flow guiding device and forming a first and multiple second through-holes inside it, along with an arc-shaped flow guide groove design, this utility model achieves uniform distribution of the liquid to be atomized, significantly improving the droplet size distribution during atomization, resulting in more uniform atomization and improved drying efficiency.