Electric valve driver

A technology of electric valves and drivers, applied in the direction of valve details, valve devices, engine components, etc., can solve the problems of poor meshing efficiency, increased cost, and can only reach about 1 mm, and achieve high precision and smoothness, and stable transmission Reliable, the effect of increasing product life

Pending Publication Date: 2019-12-03
余国华
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  • Claims
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AI Technical Summary

Problems solved by technology

Therefore, the defects of this sector gear are: 1. The precision of the punched tooth shape on the sector gear can only reach grade 10, and the meshing efficiency is poor; Thin, that is, if a 1.5 mm metal plate is used to process a sector gear, the thickness of the tooth surface of the sector gear obtained after punching can only reach about 1 mm; 3. Due to the influence of the small modulus gear parameters of the active output gear, the modulus The minimum tooth profile angle of the sector gear with 0.53 is about R0.2 mm, so that the maximum thickness limit of the metal plate used to make the main sector gear is 1.5 mm; 4. The thickness of the active outpu

Method used

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Example Embodiment

[0023] The present invention will be further described in detail below in conjunction with the embodiments of the drawings.

[0024] The electric valve driver in this embodiment is in transmission connection with the valve stem of the valve. The electric valve driver can drive the valve to open and close, and can also control the opening of the valve.

[0025] Such as figure 1 with figure 2 As shown, specifically, the electric valve driver includes a motor 1, a driving gear 2, a transmission gear 3, a base 4, a support plate 5, and a torsion spring 6.

[0026] The drive gear 2 can adopt various drive gears 2 used in the prior art. The drive gear 2 is sleeved and connected to the drive shaft of the motor 1. The outer wall section of the drive gear 2 is circular, and the teeth of the drive gear 2 It is formed on the outer wall surface of the driving gear 2, and the extending length of the tooth portion of the driving gear 2 in the axial direction constitutes the thickness of the toot...

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Abstract

The invention relates to an electric valve driver. The electric valve driver is in transmission connection with a valve rod of a valve, and comprises a motor; a driving gear which is connected to a driving shaft of the motor; a transmission gear which is provided with an arc-shaped tooth part which can be meshed with the driving gear, and is connected with the valve rod of the valve, wherein the thickness ratio of the meshing sursurface of the transmission gear and the meshing sursurface of the driving gear is (3-4.5): 4.5. According to the electric valve driver, the thickness ratio of the meshing surface of the transmission gear and the meshing surface of the driving gear is increased, the thickness of the meshing surfaces is increased, the transmission is more stable and reliable, and meanwhile the service life of a product is prolonged.

Description

technical field [0001] The invention relates to an electric valve driver. Background technique [0002] The electric valves currently used in the market usually use a driving motor and a transmission gear set to form a drive unit to drive the electric valve, and the transmission gear set is connected between the motor and the electric valve, thereby realizing the drive of the electric valve by the motor. For example, for electric valves used in fan coil electric valves, due to the limitations of the drive motor structure, the active output gear connected to the drive motor can only use gears with gear parameters such as 10 teeth and a modulus of 0.53. The minimum tooth tip of the small modulus gear is about 0.2 mm, and if a sector transmission gear that can mesh with the small modulus active output gear is to be processed by punching out, if a thicker metal plate is used to make it, it will cause The cross-sectional area of ​​the concave-convex die in the punching processin...

Claims

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Application Information

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IPC IPC(8): F16K31/04F16K31/53F16H55/17F16H55/06
CPCF16H55/06F16H55/17F16K31/04F16K31/53
Inventor 余国华
Owner 余国华
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