38results about How to "Guaranteed free spins" patented technology

The invention provides a columnar coupling compound sucker rod centralizer. The centralizer comprises a core rod and a sliding sleeve, wherein the core rod is a hollow cylinder and is provided with an axial via hole in the middle; the via hole is provided with an internal thread suitable for being matched with an external thread of a sucker rod; the sliding sleeve comprises a steel body and a self-lubricating alloy coating; the self-lubricating alloy coating is formed by uniformly mixing 2-6wt% of solid lubrication particles and 94-98wt% of iron-nickel alloy powder; the solid lubrication particles are formed by uniformly mixing MoS2 and WS2; and the iron-nickel alloy powder is prepared from the following components by weight: 0.5-1.1% of carbon, 10-20% of chromium, 1.5-5.5% of silicon, 1.0-4.5% of boron, 25-55% of iron and the balance of nickel. The centralizer has the following advantages: the centralizer has excellent corrosion resistance, wear resistance and self-lubricating property; the use amount of nickel and the cost can be obviously reduced; the service life and the allowable working temperature are substantially improved; the centralizer can well centralize and protect the sucker rods for a long time; and the wear of the oil pipes is reduced.

The invention discloses an aluminum foil packaging machine. The aluminum foil packaging machine comprises a machine frame (1). The machine frame (1) is provided with a packaging mechanism and a labeling mechanism. The packaging mechanism comprises a main scroll (2), a tensioning wheel (3), an auxiliary winding wheel, a feed channel and a feed rotary disc (7). The feed channel is communicated with a long notch (8) of the feed rotary disc (7). The vertical long notch (8) of the feed rotary disc (7) is communicated with a clamping and holding station. The machine frame (1) is provided with a station switch rotary disc (10). The station switch rotary disc (10) is provided with a pipe supporting mechanism (11). The pipe supporting mechanism (11) is provided with an inner supporting mechanism. A pipe jacking mechanism (12) is installed at the packaging station of the machine frame (1). The main scroll (2), the tensioning wheel (3) and the auxiliary winding wheel are vertically arranged. The discharge station of the machine frame (1) is provided with a discharge outlet. According to the aluminum foil packaging machine, the feed process is convenient to implement and efficient, the structure is compact, occupied space is small, convenience, high efficiency and energy conservation are achieved in discharging and unloading processes, and automatic labeling is achieved.

The invention discloses a front frame position changing machine which comprises a mounting seat. A motor and an L-shaped supporting arm are arranged in the mounting seat, and a through hole is formed in the vertical part of the L-shaped supporting arm. An output shaft of the motor penetrates through the through hole to be connected with the L-shaped supporting arm, and a DC motor is fixedly mounted on the horizontal part of the L-shaped supporting arm. A rotating table is connected to the output end of the DC motor, a plurality of internal threaded grooves are formed in the rotating table, the internal threaded grooves are annular bodies which are formed by a plurality of adjacent through holes, and the internal threaded grooves radiate in the radial direction along the circle center of the rotating table. The front frame position changing machine further comprises pressing plates, the pressing plates are connected with the internal threaded grooves through bolts, and a damping structure is arranged on the through hole. When the motor drives the L-shaped supporting arm to rotate, radial run-out can happen to the output shaft of the motor, so that the L-shaped supporting arm moves up and down. The damping structure is mounted on the through hole, the output end of the motor penetrates through the damping structure so that the radial run-out influence can be removed, the stability of a front frame in the welding process can be further guaranteed, and the welding quality of the front frame is improved.

The invention relates to a crucible drawing knife device. The crucible drawing knife device comprises a crucible drawing knife body which is of a hollow cylinder structure, wherein the cylinder wall of the crucible drawing knife body is provided with an upper-down penetrated crucible drawing knife body section groove; the crucible drawing knife body section groove is internally fixedly provided with a sleeve ring, the sleeve ring is internally sleeved with a rotating shaft, the bottom of the rotating shaft is movably connected with an arc-shaped rotating rod, and the top of the rotating shaft is movably connected with a rotating handle; the end part of the arc-shaped rotating rod is provided with a drawing knife head, and the length of the arc-shaped rotating rod is not less than the length of the radius of the crucible drawing knife body which is of a hollow cylinder structure; when the crucible drawing knife device is used, firstly the crucible drawing knife body is inserted into a crucible for one time, a material is longitudinally packed, and then the rotating handle is rotated; the rotating handle drives the rotating shaft to rotate, the rotating shaft drives the arc-shaped rotating rod to rotate, the arc-shaped rotating rod can do a circling motion by surrounding the rotating shaft, the drawing knife head is utilized for cutting off the bottom surface of the packed and sleeved extracted material, the crucible drawing knife body is taken out, and the material is pulled out.

The invention relates to a device for transmitting a torque from an internal combustion engine to an auxiliary unit, in particular to a compressor of an air conditioning system of a motor vehicle, comprising an auxiliary unit shaft and a belt pulley that is arranged on the auxiliary unit housing in such a way that the belt pulley can rotate, wherein the belt pulley and the auxiliary unit shaft are connected to each other by means of an overload safety mechanism, wherein the overload safety mechanism is designed in such a way that the connection between the belt pulley and the auxiliary unit shaft is interrupted when a specified torque is exceeded, wherein the overload safety mechanism has a spring disk having a plurality of spring arms, which are connected at ends thereof to connecting elements of a disk-shaped driver for conjoint rotation until the specified torque is reached. The problem addressed by the invention is the improvement of said device in such a way that the construction of said device is significantly simplified, the design of the response behavior of the overload safety mechanism is improved, and loads in the direction of the axis of rotation are avoided. This problem is solved in that each connecting element of the driver (7) is designed as a pocket-shaped receptacle (11) in the driver (7), wherein the end (10a) of the particular spring arm (10) lies against a contact surface (12) of the pocket-shaped receptacle (11) in a force-locked manner under spring stress, wherein each pocket-shaped receptacle (11) is designed as a hook-shaped web (13) that is cut out from the driver (7) in some regions.