5results about How to "Small control force" patented technology

The utility model discloses a forklift electric power-assisted mechanical steering system which comprises a connecting shaft, a torque sensor is installed at one end of the connecting shaft, a steering gear box is installed at the other end of the connecting shaft, and a steering mechanism driving the connecting shaft to rotate is arranged on the torque sensor. The torque sensor is connected with the steering controller, the steering controller is connected with the steering motor, and the steering motor is connected with the steering gear box and is configured to drive the steering execution mechanism to rotate. The power-assisted steering device is simple in structure, small in steering force and light in steering by adopting the steering motor for power-assisted steering, and clear in road feeling by adopting mechanical steering in which the steering wheel is directly connected with the steering wheel through a mechanical mechanism and the steering motor for power-assisted steering; when the steering system is in electrical failure, the forklift can still be steered through manual mechanical steering, and safety is high.

This utility model provides an automatic return device based on a cam mechanism, comprising: a base plate fixed to a pump body at the end of a displacement control shaft; a cam mechanism fixed to the displacement control shaft and circumferentially connected thereto, the outer circumferential surface of the cam mechanism having a V-groove; a slider mechanism, one end of which is rotatably connected to the base plate, and the other end extending into the V-groove and rollingly connected thereto, wherein when the displacement control shaft is in the return-to-center state, the slider mechanism is located at the bottom center of the V-groove; and a reset mechanism connected between the slider mechanism and the pump body, applying a preset pulling force to the slider mechanism to maintain contact between the slider mechanism and the V-groove.

The invention relates to a motor vehicle lock (1) having a locking mechanism (2) with a pivotable locking bolt (3) and a pivotable locking pawl (4) associated with the locking bolt (3). It is proposed that the motor vehicle lock (1) has a spring assembly (11) and a pivotable preloading lever (13) preloaded or preloadable in a preloading direction (12) by the spring assembly (11), which preloading lever is in a preloading transmission mechanism engagement (14) or can be brought into a preloading transmission mechanism engagement with the locking pawl (4), and the preloading transmission mechanism engagement (14) is designed such that the locking pawl (4) is preloaded or preloadable by the spring assembly (11) in a falling direction (15) with a locking pawl preloading force by means of the preloading transmission mechanism engagement (14), and the preloading transmission mechanism engagement (14) is not self-locking from the locking pawl (4) to the preloading lever (13) in a main locking state and / or in a prelocking state.

The utility model relates to a four-wheel-drive hitching control mechanism and a tractor, the four-wheel-drive hitching control mechanism comprises a control assembly, a linkage assembly and a hitching assembly, and the control assembly is hinged to the linkage assembly; the linkage assembly comprises a linkage rod, a linkage rocker arm and a linkage rotating shaft, the end of the linkage rotating shaft is fixedly connected with the linkage rocker arm, and the linkage rod is hinged to the control assembly and fixedly connected with the linkage rocker arm. The linkage rocker arm is used for driving the linkage rotating shaft to rotate through the linkage rocker arm under the lifting and pressing control of a control assembly; the hooking assembly comprises a hooking shifting rod connected with the linkage rotating shaft, the hooking shifting rod is connected with a hooking shifting fork, and the hooking shifting fork is connected with a meshing sleeve used for clutch transmission. According to the utility model, the stroke of the control mechanism can be reduced, the control force is reduced, and meanwhile, the four-wheel-drive hitching control mechanism is more compact in structure and suitable for equipment conditions with smaller space.

The present invention discloses a labor-saving parking brake mechanism, comprising a fixed guide bracket symmetrically mounted on a vehicle body, wherein the front side of the fixed guide bracket is an arc-shaped slide; the fixed guide bracket is rotatably connected to a mounting shaft, the mounting shaft is fixedly connected to an operating handle for driving the mounting shaft to rotate, and a cable support frame is fixedly connected below the mounting shaft; a cable assembly is supported at the contact point between the cable support frame and the arc-shaped slide, and the cable assembly slides along the arc-shaped slide under the drive of the cable support frame. The parking brake mechanism provided by the present invention enables the cable stroke to complete about four-fifths of the total stroke in the first half angle when the operating handle is pulled up and rotated; and the lever ratio is quickly increased in the second half angle when the operating handle is pulled up and rotated, thereby achieving the effect of reducing the operating force. The present invention has a simple structure and is easy to install; by reasonably designing the cable movement path, the operating force is reduced, and the operating comfort is greatly improved.