32results about How to "Effective control of temperature rise" patented technology

The invention discloses a meat chopping machine. The meat chopping machine comprises a housing, a driving mechanism, a screw shaft, a tank body, a refrigerating machine and a vacuum pump, wherein the tank body is fixedly arranged at the top end of the housing; a feed opening is formed in the top of the tank body; a discharge opening is formed in one side of the tank body; the screw shaft is arranged in the tank body; screw blades are fixedly connected to the screw shaft; one end of the screw shaft is connected with the driving mechanism through a main transmission shaft; the driving mechanism, the refrigerating machine and the vacuum pump are arranged in the housing; refrigerating space is formed in the inner wall of the tank body; the refrigerating space communicates with the refrigerating machine; and the vacuum pump communicates with the tank body. According to the meat chopping machine disclosed by the invention, the refrigerating machine and the tank body are connected, so that the temperature rise of materials, which is generated during operation, can be effectively controlled, and the taste, service life and the like of products cannot be affected due to over high temperature of the materials; and the vacuum pump is arranged, so that vacuum treatment can be performed in the tank body, raw materials in the tank body are compact in structure and are in an oxygen-free state after the vacuum treatment, bacteria, micro-organisms and the like are not liable to multiply, the quality of the products is improved, and the storage life is prolonged.

The invention provides a large-scale high-precision gear compound grinding center. The external gear grinding function module is arranged on the right side of the rotary table, including a bed, a column, a grinding wheel frame, a grinding wheel dressing device, an external gear grinding device, and on-machine measurement. Device; the internal gear, internal hole and end surface grinding functional modules are arranged on the left side of the rotary table, including the bed, column, internal hole and end surface grinding device, and internal tooth grinding device. The invention realizes one-time clamping of large gears, completes the grinding and precision detection of tooth surfaces, inner holes and end faces, and solves the difficulties of lifting, clamping, calibration and detection of large gears, as well as high processing costs, low production efficiency and difficult precision. The problem of guarantee greatly reduces the auxiliary time between processes, reduces the number of machine tools and fixtures, shortens the processing cycle, saves the operating area, significantly improves economic benefits, and completely changes the traditional processing of producing large gears with multiple large machine tools and gear gauges Way.

The invention discloses a flexible heat pipe used for cooling the surface of a rotating shaft of a high-speed motorized spindle. The flexible heat pipe (7) comprises a substrate (701), a runner plate(702) and a cover plate (703), the substrate (701), the runner plate (702) and the cover plate (703) are sequentially bonded from top to bottom, wherein the runner plate (702) is provided with a heatpipe runner, and a sealed heat transfer fluid is filled in the heat pipe runner. The flexible heat pipe is adhered on the surface of the rotating shaft by bending in use. The temperature of the rotating shaft is obviously increased because of the loss of an internal motor, the generation of heat by friction of front and rear bearings and wind motor of the rotating shaft at the operation state of the motorized spindle. The provided flexible heat pipe has an excellent heat transfer performance at the high centrifugal force, the local temperature rise of the rotating shaft is effectively controlled, the thermal deformation caused by the uneven temperature distribution is reduced, the influence of thermal deformation of the rotating shaft on the machining precision of the high-speed motorizedspindle is effectively controlled, meanwhile, the original structure of the motorized spindle is less changed, and the flexible heat pipe has the advantages of high reliability, low cost, easiness inpromotion and implementation and the like.