5 results about "Herringbone gear" patented technology

The application belongs to the technical field of beam pumping unit, in particular to a power unit of beam pumping unit, which comprises a main reducer, an auxiliary reducer, a permanent magnet synchronous motor and a motor frequency converter controller, the auxiliary reducer comprises an auxiliary reducer driven large gear and an auxiliary reducer driving small gear which are engaged with each other, the auxiliary reducer driven large gear is installed on the input shaft of the main reducer, and the auxiliary reducer driving small gear is installed on the motor shaft of the permanent magnet synchronous motor; the auxiliary reducer driven large gear comprises a hub, a gear ring and a plurality of shock absorbing springs, the gear ring is sleeved on the hub and is in clearance fit, a plurality of rectangular slots are uniformly distributed in the circumferential direction at the contact position of the hub and the gear, and the shock absorbing springs are installed in the rectangular slots in a compressed state; the auxiliary reducer driven large gear and the auxiliary reducer driving small gear are both herringbone gears. The application has high transmission efficiency, high reliability, continuous adjustable pumping unit stroke, and can meet the needs of matching with full series of beam pumping units.

This application provides an in-situ measurement method and device for the circumferential machining compensation amount of herringbone gear teeth phase. Based on the machining concept of quantitative compensation, this invention improves the axial phase accuracy of herringbone gear teeth during the machining process. After machining the cylindrical helical gear teeth at one end of the herringbone gear, the cylindrical helical gear teeth at the other end are machined step by step, and the circumferential phase error of the two cylindrical helical gears at both ends is quantitatively obtained between processes, providing quantitative parameters for machining compensation. The provided measurement device can measure the phase deviation of the herringbone gear teeth without mechanically damaging the herringbone gear and without the herringbone gear leaving the machining position, thus reducing the systematic error in the machining of herringbone gears.

This invention discloses a highly adaptable herringbone gear reducer with hardened tooth surfaces. The large gear includes a left-hand sector-shaped half-gear ring and a right-hand sector-shaped half-gear ring. The meshing surfaces of the left-hand and right-hand sector-shaped half-gear rings and the hub boss of the wheel hub are both planar structures with micron-level anti-slip textures. The double-arc herringbone gear formed by the left-hand and right-hand sector-shaped half-gear rings is staggered by half a tooth pitch along the axial direction, and the tooth surface adopts a double-crown modified tooth surface. During assembly, the left-hand and right-hand sector-shaped half-gear rings and the hub boss are coaxially positioned. The meshing surfaces are coated with anaerobic liquid oxygen adhesive and radially combined and cured. After curing, through-hole screw holes and pin holes are machined on the gear rings and the hub boss, and double fixing is achieved by screws and pins. This invention solves the problems of high processing difficulty, insufficient assembly accuracy and connection reliability, poor adaptability of lubrication system, and uneven tooth surface load distribution in existing hardened herringbone gear reducers.

This invention relates to the field of aerospace and ship gear transmission technology, specifically to a long-cycle multi-source excitation calculation method for herringbone gears considering asymmetric pitch deviation. Based on the gear generating principle, the theoretical tooth surface equations of the large and small gears are derived. The small gear undergoes bidirectional modification to obtain the position and normal vector of its modified tooth surface. The geometric contact analysis of the herringbone gear is decomposed into independent analyses of the left and right helical gear pairs. A TCA model is established and solved to obtain the tooth surface contact trajectory, initial tooth surface clearance, and geometric transmission error. Displacement compatibility conditions and axial force equality constraint equations are constructed. An improved load-bearing contact analysis model is established and solved using an improved simplex method. Iterative solutions yield the comprehensive meshing stiffness, axial runout, and comprehensive meshing error over the long cycle. This invention achieves differentiated and accurate calculation of the excitation in each meshing cycle of the herringbone gear over the long cycle, quantifies the axial runout excitation, and obtains multi-source excitation in one go, providing a complete vibration excitation input for the dynamic model of the herringbone gear transmission system.

This utility model relates to a balancing gear device in the field of gear technology, including a hub and a gear disposed on the outer ring surface of the hub. A diaphragm assembly, a flange, and a cover are coaxially arranged on the inner side of the hub. The diaphragm assembly is composed of multiple layers of stacked elastic diaphragms. The outer edge of the diaphragm assembly is connected to the hub by at least one ring of fasteners, and the inner edge is clamped between the flange and the cover to form a rigid connection area. The cover fixes the diaphragm assembly through a three-stage connection structure. For gear operation in high-speed reducers, this utility model utilizes the excellent self-balancing ability of the herringbone gear itself and the balancing gear device to counteract the unbalanced force caused by uneven gear mass or assembly errors, reducing vibration and noise. After balancing, gear meshing is smoother, effectively increasing transmission accuracy and stability. With reduced vibration, the frictional resistance between gear meshing and bearings decreases, further increasing transmission efficiency.