Gear tooth structure of gear, gear pump with gear tooth structure and fluid transmission device with gear pump

Abstract

The invention discloses a gear tooth structure of a gear, gear pump with the gear tooth structure and a fluid transmission device with the gear pump. The gear tooth structure of the gear is characterized in that an anti-slipping structure which prevents gears meshed with each other from slipping relatively along the axial direction is arranged on a gear tooth side surface of a spur gear or a gear tooth side surface of a one-way bevel gear. By using the anti-slipping structure, gear teeth of the gears meshed with each other can be prevented from slipping relatively along the axial direction, and abrasion on the gear teeth of the gears is greatly reduced. The gear pump is provided with at least one double-face gear with inner teeth and outer teeth. The flow of each rotating cycle of the gear pump can be greatly increased under the condition that the size of a pump body of the gear pump is slightly increased. The cross section of each blade of a blade type fluid motor in the fluid transmission device is in the shape of an isosceles triangle or an isosceles trapezoid. The blades are not easy to break, the radial elasticity of the blades can be improved, the airtightness of space between the top of each blade and a shell is improved, and the revolving speed of the fluid motor can be increased.

Description

technical field [0001] The invention relates to a transmission device, in particular to a gear tooth structure, a gear pump and a fluid transmission device thereof. Background technique [0002] Mechanical transmission is widely used in mechanical engineering, mainly referring to the transmission of power and motion by mechanical means. Divided into two categories: one is the transmission of power and friction transmission by friction between the parts, and the other is the meshing transmission that relies on the meshing of the active part and the driven part or the meshing of the middle part to transmit power or motion. In the prior art, gear transmission is one of the most commonly used mechanical transmissions. The gears in the gear transmission mechanism include external gears and internal gears; the external gears or internal gears are spur gears or one-way helical gears with corresponding inclination angles. , Of course, it also includes bidirectional helical gears wi...

AI Technical Summary

Problems solved by technology

The design of the bending strength of such blades is unreasonable, and the blades are easily broken from the root during the working process. Although such blades are provided with reinforcing ribs, their radial elasticity is affected, which is not conducive to sealing and sliding cooperation with the shell.

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