5results about How to "Overcome spring force" patented technology

The present invention discloses an actuator cylinder that can be locked and unlocked in a full-stroke cyclic motion and can be controlled arbitrarily. The actuator cylinder is simple and controllable, and can realize full-stroke free motion and active restoration of locking by active failure. The present invention is realized by the following technical scheme: during the reciprocating motion of the piston rod, the mechanical lock provides a locking force through a spring sleeve connected to a spring to realize locking or unlocking; when the hydraulic / pneumatic oil circuit system supplies pressure to the actuator cylinder cavity, the reciprocating motion of the piston rod follows the mechanical lock locking → unlocking → piston rod movement → locking → unlocking... piston rod movement to perform logical cyclic locking and unlocking. The unlocking pipeline is depressurized, and the hydraulic / pneumatic pressure supply system supplies pressure to the unlocking pipeline. The unlocking push rod moves toward the end face of the spring sleeve, pushes the spring sleeve, and pushes it away from the locked position of the mechanical lock, and is in an unlocked state, realizing the free motion of the piston rod in the full stroke of the unlocked actuator cylinder; after the unlocking pipeline is depressurized, the actuator cylinder is restored to the serial logical cyclic stroke of arbitrary locking and unlocking.

The invention relates to a method for producing a pedal device (10) for a drive-by-wire system of a vehicle, in which a pedal part (50) is mounted on a support structure (20) in such a way that first a bearing section (LA) of the pedal part (50) is brought into contact with a bearing region (LB) of a first support part (22) of the support structure (20), and second support part (22) of the support structure (20) is brought into contact with a bearing region (LB) of a second support part (22) of the support structure (20). And subsequently mounting a second support part (24) of the support structure (24) on the first support part (22) in such a way that the bearing section (LA) of the pedal part (50) is loaded towards the bearing region (LB) of the first support part (22). The invention further relates to a pedal device for the drive-by-wire system.

A snowplow transmission clutch assembly belongs to the field of snowplow technology. It utilizes spring pressure to engage friction blocks planarly, resulting in a large contact area, smooth engagement, and the ability to transmit significant torque. It also provides overload protection through friction slippage. A traction cable directly overcomes the spring force, quickly pulling the active friction block back for complete power separation and rapid response. The entire assembly is integrated between the fixed shaft and the input shaft, resulting in a compact structure. The single traction cable with a dual-branch layout ensures balanced force on the sliding shaft, smooth operation, and convenient control via a remote cable. The friction blocks are connected via dovetail grooves, facilitating easy replacement after wear and reducing maintenance costs and time.

A fuel supply valve for supplying fuel from a fuel tank to a fuel cell stack comprises: a plunger having a cavity therein; a core portion arranged on the plunger; and a blocking portion arranged in the cavity to maintain airtightness between the core portion and the plunger, and a space in which the airtightness of the cavity is maintained by the plunger, the core portion and the blocking portion is defined as a pressure chamber.

This invention relates to the field of bearing testing technology, specifically to a bearing assembly testing device and method. The device includes a testing base with a testing fixture rotatably connected to it for fixing the bearing. A vibration detector is mounted on the testing base, with one end of the detector contacting the bearing surface. The invention utilizes an adjustment assembly with three positioning rods and contact blocks on a slide. Pushing the slide allows the contact blocks to apply an axial load to one end of the bearing for initial testing. To test the other side, the contact blocks are retracted using the adjustment assembly, the slide is pushed past the bearing to reach the other side, and then the contact blocks are extended again and the slide is pulled back to apply a reverse load. This design, by applying pressure to both sides of the bearing using the same loading mechanism, completely eliminates the blind spot caused by unilateral loading, ensuring consistency between the two testing conditions. Furthermore, it eliminates the need to disassemble the bearing, significantly improving the comprehensiveness, reliability, and efficiency of the testing.