6 results about "Balance shaft" patented technology

The invention discloses a hanging elastic element for a heavy all-wheel drive off-road vehicle and a design method of the element. The hanging elastic element comprises a variable-stiffness few-leaf-spring assembly, an intermediate axle assembly, a rear axle assembly and a balance shaft seat, the variable-stiffness few-leaf-spring assembly comprises primary spring group springs and secondary spring group springs, a frame is fixedly connected at the upper end of the secondary spring group spring, the upper ends of the intermediate axle assembly and the rear axle assembly are respectively connected with the upper end of the balance shaft seat through the primary spring group springs, and the lower ends of the intermediate axle assembly and the rear axle assembly are respectively connected with the lower end of the balance shaft seat through lower thrusting rods. The hanging elastic element has suitable hanging partial frequency under the independent action of the primary springs and under the combined action of the primary spring group springs and the secondary spring group springs, tests of smoothness, comfort and reliability of a real vehicle are verified, a type test is verified, and the hanging elastic element has good smoothness, comfort and reliability under various working conditions and solves the problems of poor smoothness and comfort of a linear single-stiffness leaf spring of a heavy 6X6 off-road vehicle.

The invention discloses an electric balance adjusting device of a bending machine and belongs to the field of bending machines. The electric balance adjusting device comprises two wall plates and a balance shaft arranged between the two wall plates, and a balance adjusting mechanism; the balance adjusting mechanism comprises an adjusting seat, a bearing seat, a screw rod, a supporting plate, an eccentric sleeve and a speed reducing motor; the adjusting seat is mounted on an outer side face of one wall plate; the bearing seat is connected with the adjusting seat through a pin shaft; one end of the screw rod is arranged in the bearing seat and is driven through the speed reducing motor; a screw rod nut sleeves the screw rod; one end of the supporting plate is connected with the screw rod nut and the other end of the supporting plate is connected with the eccentric sleeve; the eccentric sleeve is mounted on the wall plates; one end of the balance shaft is mounted in the eccentric sleeve through a bearing. By adopting an electric driving manner, the height difference of two ends of the balance shaft is adjusted so that the aim of adjusting the parallelism degree of a sliding block is realized; the electric balance adjusting device of the bending machine has the advantages of simplicity and convenience in adjustment, high precision and high efficiency and the bending precision of a sheet material is guaranteed.

The invention provides a novel clamp for welding metal packaging box accessories. The novel clamp is reasonable in design, high in working efficiency and convenient to use. The clamp comprises a fixed base, wherein a sliding rail is arranged on the fixed base; two parallel vertical clamps are arranged on the sliding rail side by side; an adjusting bolt capable of adjusting tightness degree of the clamp is arranged at the bottom of each vertical clamp. According to the novel clamp for welding metal packaging box accessories, the two vertical clamps are completely arranged in parallel; during use, a balancing shaft head with a welded I-shaped joint is firstly used for vertically clamping the I-shaped joint by one vertical clamp, then the other to-be-welded I-shaped joint is vertically clamped by the other vertical clamp, then the welding operation is carried out, so that the I-shaped joints at two ends of the balancing shaft head are completely located on the same horizontal line; the welding accuracy is greatly improved; the novel clamp for welding metal packaging box accessories is simple and reliable in overall structure, skillful in design and low in production cost, and is suitable for large-scale popularization and application.