KR20160109871A - Declutch Gear Box for Valve - Google Patents

Declutch Gear Box for Valve Download PDF

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Publication number
KR20160109871A
KR20160109871A KR1020150035056A KR20150035056A KR20160109871A KR 20160109871 A KR20160109871 A KR 20160109871A KR 1020150035056 A KR1020150035056 A KR 1020150035056A KR 20150035056 A KR20150035056 A KR 20150035056A KR 20160109871 A KR20160109871 A KR 20160109871A
Authority
KR
South Korea
Prior art keywords
gear
valve
housing
gear housing
pinion
Prior art date
Application number
KR1020150035056A
Other languages
Korean (ko)
Inventor
박준홍
이준호
Original Assignee
동아대학교 산학협력단
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 동아대학교 산학협력단 filed Critical 동아대학교 산학협력단
Priority to KR1020150035056A priority Critical patent/KR20160109871A/en
Publication of KR20160109871A publication Critical patent/KR20160109871A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F16K31/05—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor specially adapted for operating hand-operated valves or for combined motor and hand operation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/53—Mechanical actuating means with toothed gearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/60—Handles

Abstract

The present invention relates to a declutch gearbox for a valve which delivers manipulation force of a handle to a valve when switching an automatic valve over to a manual operation in case of an emergency. According to the present invention, the declutch gearbox for a valve, when it is required to change a gear ratio to lower an input torque value, couples a first gear housing buried with a second-stage helical gear connected with a worm gear shaft to a second gear housing buried with a pinion gear connected to the handle and a spur gear engaged with the pinion gear, wherein a floating plate supporting the pinion gear to be rotatable is installed between the first gear housing and the second gear housing.

Description

(Declutch Gear Box for Valve)

The present invention relates to a decelerator gearbox for a valve that transmits the operating force of a handle to a valve when an operation of a valve is manually switched in an emergency situation of an automatic valve.

Generally, a device for opening or closing a fluid passage for regulating the flow rate, pressure and temperature of a fluid in a pipe is called a valve. The automatic valve is configured to automatically operate the valve by supplying electricity or air pressure .

Such an automatic valve does not have a separate function to operate the valve itself if any signal such as electricity or air is interrupted due to power failure or the like.

Conventionally, in order to manually operate the automatic valve in case of power failure or malfunction, a decutch gear box of a type in which the gear is attached and detached is used.

However, in the conventional discrete clutch gear box, a spur gear is additionally mounted to increase the gear ratio when a high torque according to high pressure and a sealing material is required. In the prior art, due to the mechanism characteristic of the disClutch gear, Since it is not possible to fix the helical gear, it is necessary to change the gear ratio to lower the input torque value. If necessary, two gear housings are used to attach the spur gear and connect it to the first helical gear (see FIG.

Such a conventional discrete clutch gear box is limited in use in a narrow space, and a back rash due to gear accumulation tolerance is increased by 15 to 20 degrees to lower the self-locking function, And the like. Further, the gear efficiency is as low as about 20%, and the manufacturing cost increases.

Registration No. 10-05012460 (2005.07.05.)

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to maximize the space utilization range by optimizing the size of a single gear housing by using a floating plate, back rash at 5 to 7 ° to optimize self-locking function, improve gear efficiency by 25%, provide modularized parts and cost savings. have.

In order to accomplish the above object, the present invention provides a discrete clutch gear box for a valve, comprising a first gear housing having a two-stage helical gear connected to a worm gear shaft, a pinion gear connected to a handle, And a floating plate coupled to the second gear housing and rotatably supporting the pinion gear between the first gear housing and the second gear housing.

According to the present invention, since a single gear housing can be laid by using a floating plate, it is possible to maximize the space utilization range with an optimized size and to maintain the back rush at 5 to 7 degrees, it is possible to optimize the self-locking function, improve the gear efficiency to 25%, and modularize the parts and reduce the cost.

1 is a cross-sectional view showing a structure of a discrete clutch gear box for a valve in a conventional third party.
2 is a perspective view showing a part of a decutch gear box for a valve according to the present invention.
3 is a sectional view of a discrete clutch gear box for a valve according to the present invention.
FIGS. 4 and 5 are perspective views illustrating the separation and engagement of the first-stage helical gear and the second-stage helical gear of the discrete clutch gear box for a valve according to the present invention, respectively.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a discrete clutch gear box for a valve according to the present invention will be described in detail with reference to the accompanying drawings.

2 to 5 show a discrete clutch gear box for a valve according to the present invention. In the discrete clutch gear box for a valve according to the present invention, a worm gear shaft 2 having a worm gear for performing an opening / Stage helical gear 3 moves in an emergency eccentric rotation manner in which the supply of electric or pneumatic pressure is interrupted when the short helical gear 3 is connected to engage with the one-stage helical gear 4 connected to the handle H. The two-stage helical gear 3 is installed inside the first gear housing 1.

The pinion gear 11 and the spur gear 12 are connected to the one-stage helical gear 4 in order to increase the gear ratio when the valve requires a high torque according to high pressure and a sealing material.

At this time, the second gear housing 10 having the pinion gear 11 and the spur gear 12 engaged therewith is engaged with the first gear housing 1. A floating plate 20 is installed between the first gear housing 1 and the second gear housing 10 so that the pinion gear 11 is rotatably mounted. The spur gear 12 is axially coupled to the first-stage helical gear 4.

The gear housing 10 can be connected to the first gear housing 1 by using the floating plate 20 to which the pinion gear 11 is rotatably connected when the gear ratio change for lowering the input torque value is required This maximizes space utilization with optimized size, optimizes self-locking function by maintaining back rash at 5 to 7 ° and improves gear efficiency by 25% Modularization and cost reduction are possible.

1: Gear housing 2: Worm gear shaft
3: 2 stage helical gear 4: 1 stage helical gear
10: gear housing 11: pinion gear
12: Spur gear 15: Bearing
20: Floating plate H: Handle

Claims (3)

A second gear housing 10 in which a pinion gear 11 and a spur gear 12 engaged with the worm gear shaft 2 are mounted is coupled to a first gear housing 1 in which a two-stage helical gear 3 connected to the worm gear shaft 2 is inserted , And a floating plate (20) rotatably supported by the pinion gear (11) is provided between the first gear housing (1) and the second gear housing (10). 2. The clutch disengagement gear box according to claim 1, wherein a shaft of the pinion gear (11) is connected to a handle (H) through a second gear housing (10). 2. The clutch disengagement gear box for a valve according to claim 1, wherein the floating plate (20) is provided with a bearing (15) for rotatably supporting the pinion gear (11).
KR1020150035056A 2015-03-13 2015-03-13 Declutch Gear Box for Valve KR20160109871A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150035056A KR20160109871A (en) 2015-03-13 2015-03-13 Declutch Gear Box for Valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150035056A KR20160109871A (en) 2015-03-13 2015-03-13 Declutch Gear Box for Valve

Publications (1)

Publication Number Publication Date
KR20160109871A true KR20160109871A (en) 2016-09-21

Family

ID=57080062

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150035056A KR20160109871A (en) 2015-03-13 2015-03-13 Declutch Gear Box for Valve

Country Status (1)

Country Link
KR (1) KR20160109871A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100512460B1 (en) 2002-11-11 2005-09-05 이일동 Method to treat fish

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100512460B1 (en) 2002-11-11 2005-09-05 이일동 Method to treat fish

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