6results about How to "Fix running stability issues" patented technology

The present invention discloses an intelligent temperature control device and method for an electric tricycle converter, and relates to the field of data processing technology. The method comprises: obtaining a target detection temperature, and if the target detection temperature reaches a preset temperature threshold, activating a temperature control verification mechanism, performing a multi-dimensional temperature characteristic analysis on the target converter, and obtaining a target predicted temperature; if the temperature difference between the target predicted temperature and the target detection temperature is within a preset deviation threshold, issuing a temperature control instruction, performing a temperature control simulation optimization analysis, and obtaining a target temperature control plan; and performing temperature control according to the target temperature control plan. The present invention solves the technical problem in the prior art that the heat generated by the electric tricycle converter during operation affects the operating stability and service life of the converter, and achieves the technical effect of intelligently controlling the temperature control of the electric tricycle converter through multi-dimensional temperature characteristic analysis, and improving the operating stability, reliability and service life of the converter.

The present invention provides a traction system and a traction locomotive, comprising a traction device and a side bearing device. The traction device is arranged at the center of a bogie crossbeam. The traction device comprises a traction pin and a traction pin seat. The first end of the traction pin seat passes through the crossbeam and extends to the bottom of the crossbeam. The second end of the traction pin seat is arranged on the side of the crossbeam facing the frame. The first end of the traction pin is connected to the frame, and the second end of the traction pin is inserted into the traction pin seat, so that the frame and the bogie are reliably connected, the center of gravity of the locomotive is reduced, and the stability and stability of the locomotive structure are ensured. The side bearing device is arranged on the crossbeam, and the side bearing device is located on both sides of the traction device. The side bearing device contacts the frame and provides support for the frame, so that the weight of the traction locomotive is evenly distributed on each wheel, ensuring the stability and safety of the traction locomotive in curved running. The problem that the center of gravity of the existing traction locomotive is relatively high, resulting in poor stability and safety of the traction locomotive in curved running is solved.

This utility model relates to the field of hydraulic control valve technology and discloses a hydraulic control valve for forklifts, including a directional valve, which is a three-position four-way electro-electromagnetic directional valve used to control the flow direction of hydraulic oil; a filter, which is installed inside the oil inlet of the directional valve and has a filter screen inside to filter impurities; and an inching valve, which is installed inside the oil outlet branch of the directional valve. One end of the inching valve is fixedly connected to a control rod, and the other end of the inching valve is equipped with a spring to control the hydraulic oil pressure. In this utility model, the directional valve controls the flow direction of hydraulic oil to achieve forklift forward and reverse switching. The inching valve adjusts the valve core position under the action of the control rod and the spring. The energy storage valve uses a spring to store and release energy when the pressure is high or low. The relief valve adjusts the size of the oil outlet through a linkage structure of small valve core compression or return spring three, achieving the effect of smooth pressure change and reduced shock in the hydraulic system.

This utility model relates to the field of gear output seat technology, specifically a sealed and dustproof gear output seat, including an output base. A dustproof component is installed on the outer wall of the output base, and a detection component is installed on the inner wall of the output base. A fixing sleeve is installed on the outer wall of the output base, and an input shaft is rotatably connected to the inner wall of the fixing sleeve. This utility model controls the operation of a lubricating oil pump through a controller, so that the lubricating oil pump draws out the lubricating oil from the inner cavity of the output base, and then discharges the lubricating oil into the inner cavity of the dustproof housing. Since the lubricating oil is discharged into the inner cavity of the dustproof housing, when the lubricating oil passes through the magnetic adsorption column, the metal debris in the lubricating oil is magnetically adsorbed by the magnetic adsorption column. Subsequently, the filter plate adsorbs the impurities and dust in the lubricating oil, and then the lubricating oil is discharged into the inner cavity of the output base through the drain pipe, thus filtering the lubricating oil in the inner cavity of the output base, so as to achieve good sealing and dustproof effect of the device.

This utility model provides a quick-release heat dissipation structure for a dynamic face recognition module of an attendance gate, comprising: an attendance machine body, wherein a heat dissipation component for heat dissipation of the face recognition module body is installed inside the attendance machine body, a module frame for mounting the face recognition module body is provided inside the right side of the attendance machine body, and the face recognition module body is mounted on the upper side of the module frame, and the heat dissipation component includes a mounting frame, wherein multiple elastic elements are equally spaced at the upper end of the mounting frame. Compared with the prior art, this utility model has the following beneficial effects: the setting of the heat dissipation component can achieve the purpose of quick disassembly of the heat dissipation component. It does not use traditional bolts or screws for fixing, but can be quickly disassembled by simply rotating, which helps to reduce the difficulty of disassembling the heat dissipation component and solves the problem of disassembly difficulty caused by bolt fixing.

The invention relates to a rail traction converter control method and a rail traction converter, and the method comprises the steps: extracting the steady-state quantity of the intermediate DC voltage of the rail traction converter; obtaining an intermediate direct-current voltage after noise filtering; based on the steady-state quantity of the intermediate direct-current voltage, the intermediate direct-current voltage after noise filtering and the electrical angular speed of the motor, the given torque compensation quantity of the motor side in the current switching period is calculated; and performing torque compensation on the motor side based on the given torque compensation amount so as to suppress the unbalanced traction current on the middle direct current side and avoid the problem of related vehicle network operation stability caused by the unbalanced traction current of the track.