36results about How to "Adjust stroke" patented technology

The invention discloses a press stroke and die setting height adjusting mechanism in the field of presses. The press stroke and die setting height adjusting mechanism comprises a machine body cross beam. A rotatable crankshaft is horizontally arranged on the machine body cross beam. A connecting rod is arranged on the connecting rod journal of the crankshaft. An upper toggle rod and a lower toggle rod are hinged to the ends of the connecting rod correspondingly. A guide column which can vertically move is hinged to the lower end of the lower toggle rod. A sliding block is arranged at the lower end of the guide column. A rotatable eccentric shaft is arranged in the position, corresponding to the upper toggle rod, of the machine body cross beam and is parallel to the rotation axis of the crankshaft. The upper end of the upper toggle rod is fixedly connected with the eccentric section of the eccentric shaft. The main shaft section of the eccentric shaft is sleeved with a worm gear. The machine body cross beam is provided with a rotatable worm. The axis of the worm is perpendicular to the rotation axis of the eccentric shaft. The worm gear and the worm are engaged with each other. One end of the worm is in transmission connection with a rotary driving mechanism. The press stroke and die setting height adjusting mechanism can randomly adjust the press sliding block stroke and the die setting height, can automatically adapt to dies with different specifications and workpieces with different sizes, and is convenient to adjust and savable in time and effort.

The invention provides a fatigue test device for a VVT (Variable Valve Timing) engine piston and belongs to the technical field of engine test equipment. The problem that the test data of the present fatigue test device is not accurate enough is solved. The fatigue test device for the VVT engine piston comprises a frame, wherein a first cam is in rotating connection with the frame through a rotating shaft; a connecting shaft is vertically connected with a side face of the first cam; a distance-adjusting structure is arranged between the connecting shaft and the cam; a sleeve is fixedly connected with the frame; the rotating shaft is connected with a driving structure; a detecting structure for detecting the coaxiality of a cylinder sleeve and the piston is also arranged on the frame; an adjusting structure for adjusting the coaxiality of the cylinder sleeve and the piston is arranged on the sleeve and the connecting shaft. The fatigue test device for the VVT engine piston can be used for performing a fatigue test under the condition that the coaxiality of the cylinder sleeve and the piston is ensured. The accuracy of the test data is increased.

The invention discloses a worm type robot. The robot comprises self-locking sleeve pair, self-locking balls, and a crank linkage mechanism, wherein the self-locking sleeve pair comprise an upper self-locking sleeve and a lower self-locking sleeve, the upper self-locking sleeve and the lower self-locking sleeve are both provided with through holes for crawling on a cylindrical object, and both ends of the upper self-locking sleeve and the lower self-locking sleeve are provided with a trapezoidal arc structure; the self-locking balls are arranged in both the trapezoidal arc structures and a cavity formed by the upper self-locking sleeve and the lower self-locking sleeve, the diameter of each self-locking ball is greater than the top edge length of each trapezoidal arc structure, and the diameter of the self-locking sphere is less than the bottom length of each trapezoidal arc structure, and the self-locking balls have large enough friction coefficient to provide adequate friction to achieve the self-locking; one end of the crank linkage mechanism is connected in a rotary mode with the upper self-locking sleeve, and the other end is connected in a rotary mode with the lower self-locking sleeve. The worm type robot can achieve the crawling on a complex cylindrical object.

The invention discloses a single-motor bilateral-drive energy-saving chain type pumping unit. The pumping unit is composed of a support portion, a transmission portion and a counter weight adjusting portion. According to the pumping unit, two chains are driven by a single motor, tensioning degrees of the chains are adjusted in real time, the stroke is variable, the time of strokes is adjustable, and dynamic counter weight is achieved.

In the electric jack for vehicles of the present invention, the lifting unit comprises a helical lifting column, and the internal thread is only formed at the lower part of the helical lifting column, thereby reducing its frictional resistance. A pin is placed in a horizontal groove formed at the top of the primary helix, this pin protruding slightly into two longitudinal cavities symmetrically formed at the top of the secondary helix. A coil spring, spring cover and snap ring are placed sequentially over the pin with the snap ring seated in an annular groove formed on the inner surface of the top wall of the secondary helix, thereby allowing the coil spring to bias the pin. As a result, the secondary helix is ​​prevented from rising together with the helical lifting column. A support post having a top support member and external threads capable of movably engaging the secondary helix and the gap between the helical lifting posts when the external threads are engaged with the internal threads of the helical lifting post, thereby allowing the user to follow the It is required to adjust the stroke of the lifting unit.

The invention discloses an automatic lubricant pump for hydraulic equipment, belonging to the technical field of lubricant pumps. The automatic lubricant pump is characterized by comprising a pump body, a first installing groove is formed in one end face of the pump body, a working chamber is arranged at the bottom in the first installing groove, and a cylinder body is arranged in the first installing groove; a second installing groove, opposite to the first installing groove, is arranged in the other end face, opposite to the first installing groove, of the pump body, a pressure regulating mechanism is arranged in the second installing groove, a pressure conducting mechanism connected with the pressure regulating mechanism is arranged in the cylinder body, and an external pressure oil inlet communicated with the pressure conducting mechanism is arranged in the outer end face of the cylinder body; an oil inlet passage and an oil outlet passage are respectively arranged on the side walls of the working chamber, the oil inlet passage is connected with an automatic oil inlet valve, and the oil outlet passage is connected with an automatic oil outlet valve; the invention aims at providing the automatic lubricant pump for the hydraulic equipment, which is compact in structure and small and exquisite in size, can automatically adapt to the load conditions and has a good effect; the automatic lubricant pump is used for the lubrication for moving parts of the hydraulic equipment.

The invention discloses a mechanical and electrical integrated injection molding device for workpiece production and machining, which comprises a conveying groove, wherein a plurality of molds are evenly placed in the conveying groove, a pushing sliding rod capable of conveying the molds in a stepping mode is arranged at the bottom of the conveying groove, and a portal frame is fixed to the conveying groove; a lifting table is arranged in the portal frame in an up-down sliding mode, a plurality of connecting bases are distributed in the lifting table in a sliding mode in the direction perpendicular to the advancing direction of the conveying groove, and an injection molding assembly is arranged in each connecting base; an injection molding motor is fixed above the connecting base, and an output shaft of the injection molding motor is connected with a hollow rotating shaft; and a spline piston rod is connected below the hollow rotating shaft in a torque transmission manner. Compared with the prior art, the mechanical and electrical integrated injection molding device has the advantages that a piston connecting rod is connected to the different positions of the sliding groove gear, the initial position and stroke of each spline piston rod can be adjusted, and the spline piston rods can operate according to the preset period so as to be suitable for the injection amount and injection time of plastic liquid of the molds.

The invention discloses a dual CAN bus fire-fighting linkage intelligent control system which comprises a single main control box (1), N isolators (2), N power supply boxes (3) and N window openers (4). The power supply boxes (3) supply power to each isolator (2) and each window opener (4). The system is connected with the N window openers (4) in parallel through a power line ring net (13), a CAN signal line ring net I (11) and a CAN signal line II (12); and each isolator (2) uses the CAN signal line ring net I (11) to timely collect and inspect the status information of each window opener (4) and feedback to the main control box (1), and the status information is displayed in the main control box (1) in real time. The system effectively unify the model and the type of the window openers, and is convenient for installation and debugging; and the system can realize model unification, flexible networking, intelligent synchronization and stroke adjustment of one or more groups of window openers, thereby enhancing user experience satisfaction, and urban intelligence control strategies and levels.

The invention provides a hot powder splashing prevention device for dredging a kiln. The device comprises a bottom plate and clamping feet positioned on the edge of the bottom plate, wherein the bottom plate is provided with a kiln dredging hole; the outer side of the kiln dredging hole is provided with a detachable baffle plate; and the inner side of the bottom plate is provided with a curtain baffle which covers the kiln dredging hole. The device can effectively prevent hot powder from splashing and have certain effect of blocking powdery powder and heat waves at the same time, and can effectively adjust the stroke of dredging an air pipe and ensure the personal safety of operating personnel.