CN203453324U - Manual clutch mechanism - Google Patents

Abstract

The utility model relates to a manual clutch mechanism. An upper clutch body is fixed on a base plate, a clutch stirring piece is stirred, the stirring piece drives a mandrel and a lower clutch body to rotate and move downwards, a lower portion gear of dual gears is separated from a previous-level small gear, a gear transmission system is interrupted, meanwhile, two planes exist on the combined portion of an upper separating body and a lower separating body, after the clutch stirring piece rotates to a certain angle, the two planes coincide with each other and are stuck, and the locating function of the clutch mechanism is achieved. A manual operation part is rotated, and control over opening and closing of a valve by an actuator is achieved. During clutching reset, the clutch stirring piece is rotated for resetting, the lower clutch body moves upwards under the effect of a spring and manual force and is combined and fixed with the upper clutch body, the upper separating body and the lower separating body are combined, a large gear of the dual gears is meshed with the previous-level small gear (a small gear of the dual gears is meshed with a next-level large gear), the gear transmission system is communicated, and an electric control system is restored.

Description

A kind of hand clutch mechanism

Technical field

The utility model relates to a kind of conventional electromechanical integration equipment (device) of automation field, is the actuating equipment in three large constituent elements (detection facility, regulating equipment and actuating equipment) of instrument and meter for automation, belongs to and regulates and cut-off device technical field.

Background technique

Actuator, is mainly that some equipment and device are carried out to automatic operation, controls its switch and adjusting, replaces manual work.By power type can be divided into pneumatic, surge, several classes such as electronic, electricity surges; By forms of motion, can be divided into several classes such as straight journey, angle stroke, rotary type (how rotatable).Early stage industrial field, having many control is manually with automanual, in operating process, human body may directly touch dangerous position and the danger medium (number of chemical material and the radiant matter of solid, liquid, gas tri-state) of industry equipment, very easily cause direct injury, there is larger potential safety hazard; Life of equipment is short, fragile, amount of maintenance is large.

Based on above reason, actuator produces gradually and is applied to industry and other control field, to reduce and to have avoided personal injury and device damage, has improved greatly control accuracy and efficiency, has also greatly improved manufacturing efficiency simultaneously.Traditional manual control actuator, at output shaft position, needs very large external force could realize manual function; Simultaneously the time due to manually time short, be easy to cause the tooth portion of gear member to damage, therefore need increase clutch mechanism at mechanical part.

Electric actuator is owing to using power supply as power, there is the incomparable advantage of other a few class transmission type, so power type final controlling element development in recent years is the fastest, its feature is to obtain the energy conveniently, action is fast, signal transport velocity is fast, and can remote transmission signal, is convenient to be used in conjunction with etc. with digital device.So electric actuator is in development and upward period, is a kind of rising device.Its shortcoming is complex structure, and price and Driving force are little.

Electric actuator inside comprises electronic parts and components part and mechanical part.The electric actuator of the type adopts clutch mechanism mostly now, and adopt moves axially gear or move radially two kinds of modes of gear more; Clutch mechanism uses depression bar directly and Gear Contact conventionally, realizes the separation and combination (gear moves axially and realizes clutch) of gear by spring return function; Or by the rotation of cam, the position of handsetting gear (change moving radially of gear and realize clutch).In use can there is following shortcoming in above clutch mechanism:

1, Manual pressure bar is longer, accounts for inner space, and job insecurity (gear axial motion type), upper cover position will be left to depression bar position simultaneously, easily causes whole electric actuator water-tight performance (IP67/IP68) poor;

2, gear moves radially and will realize by the conversion arm of force, and needs the external force strengthening to make its combination, and inconvenience is not only installed, and also will increase the parts such as cam, the conversion arm of force simultaneously, makes complex structure, causes cost waste;

3, small-size electric actuator is due to price and volume problem, and internal structure is very compact, thus structural requirement optimization as far as possible, but existing final controlling element is optimized not enough;

4, much there is poor work stability, inconvenient, to operate unreliable etc. aspect problem be installed in existing clutch mechanism.

Summary of the invention

The hand clutch mechanism that the utility model is related, it is a kind of electric actuator of little output torque, can be used for the unlatching of the control valve of 25-50N.m moment environment lower pipeline, operator both can carry out manually-operable at the scene, also can carry out telecontrol to valve, be widely used in the every field on the fluid pipe-lines such as draining, HVAC, oil, chemical industry, electronics, light industry, food, medicine, light textile, papermaking, water power, boats and ships, smelting, energy system.

The purpose of this utility model is that final controlling element space is effectively utilized, make clutch mechanism be applied to more simply, safely, reliably small-size electric actuator, manual operating device design is being exported on the gear shaft of previous stage simultaneously, make more laborsaving when manual (moment be about manually output shaft 1/3 ~ 1/4), optimized the structure of little electric actuator simultaneously, weight reduction, reduces processing cost, improves operational stability, the reliability of final controlling element.

For realizing above object, the technical solution of the utility model is improved previous design concept, and it is reduced costs, and reduces final controlling element volume and weight, improves final controlling element clutch reliability performance simultaneously.

Relevant with gear-driven speed ratio and manually operated position because of manually operated moment, therefore the related hand clutch mechanism of the utility model interrupts gear train assembly, manually operated moment is diminished.

We analyze design hereinafter, and Local map is shown in Fig. 2:

The hand clutch mechanism that the utility model is related, by upper clutch body 4, lower clutch body 5, supported spring 8, setting sleeve 9, clutch plectrum 10, duplicate gear 7, Cock screw 6, fixed block 3, mandrel 2, setting sleeve 9 compositions for axle;

Wherein said upper clutch body 4 is connected on substrate 1 by D type Placement, and fixedly prevent from coming off with fixed block 3 with axle, lower clutch body 5 is fixed on mandrel 2 by Cock screw 6, duplicate gear 7 and mandrel 2 Spielpassung, duplicate gear has supported spring 87 times, and the effect of setting sleeve 9 is radial clearances of controlling 2 of supported spring 8 and mandrels; O type circle 14 is assemblied on body 11, closely cooperates and plays seal action with mandrel 2.

1, the utility model is applied to the clutch mechanism of manual work state, and clutch mechanism working principle is: upper clutch body 4 is fixed on substrate 1 with the upper clutch body 4 of lower clutch body 5() adopt the relative movement of key groove, realize the separation of engaging gear; Simultaneously at upper clutch body 4, be designed with spacing plane 21, lower clutch body 5 is designed with lower limit plane 22, for separating of after spacing; After gear separation, thereby by rotary manual device, realize the open and close of valve.

Joint when 2, electronic, by clutch plectrum 10 returns, the active force by spring 8 makes lower detached body 5 returns fixing, and the engagement of large small gear makes the connection of gear train assembly, realizes electronic control.

3, the related hand clutch mechanism of the utility model is operated by outside clutch plectrum 10, clutch plectrum band moving mandrel 2, because lower detached body 5 makes by Cock screw 6 locked on mandrel 2, lower detached body 5 rotates certain angle with mandrel 2, lower detached body 5 is when rotating and have relative position to move, thereby the engagement that promotion gear is realized gear is with separated.

4, the work of the related hand clutch mechanism mechanism of the utility model is relatively reliable, there will not be inefficacy, and operation is relatively simple; In main body 11, increased the spacing column 19 of clutch plectrum 10, position-limiting action is obvious, can more effectively play the effect of protection equipment simultaneously.

accompanying drawing explanation:

Fig. 1 is electric actuator clutch part construction profile schematic diagram;

Fig. 2 is electric actuator clutch part plan view;

Fig. 3 is the sectional view of electric actuator;

Wherein, 1, substrate; 2, mandrel; 3, axle fixed block; 4, upper clutch body; 5, lower clutch body; 6, Cock screw; 7, duplicate gear; 8, supported spring; 9, setting sleeve; 10, close plectrum; 11, body; 12, upper cover; 13, oil-impregnated bearing; 14, O type circle; 15, output shaft; 16, output indicating arm; 17, transparent window; 18, control tutorial light form; 19, spacing column; 20, manual axle; 21, upper limit plane; 22, lower limit plane.

Fig. 4 is electric actuator worm's eye view;

The body position of clutch up and down simplified schematic diagram when Fig. 5 is bonding state;

The body position of clutch up and down simplified schematic diagram when Fig. 6 is separated state;

The body position of clutch up and down simplified schematic diagram when Fig. 7 is spacing state.

embodiment:

Below in conjunction with embodiment, the utility model will be further described.

If Fig. 3 is that electric actuator sectional view, Fig. 4 are electric actuator worm's eye view, this final controlling element comprises mechanical part and electronic control part.Mechanical part comprises body 11, upper cover 12, substrate 1, input motor, first to the 7th grade of gear stage gear shaft, mandrel 2, setting sleeve 9, oil-impregnated bearing 13, manual operating device, O type circle 14, output shaft 15, output indicating arm 16, limit spring 8, transparent window 17, controls tutorial light form 18 etc.

The mechanical part of the hand clutch mechanism that the utility model is related is divided into electronic and manual two kinds of working staties.

During electronic working state, working principle is as follows:

Ac is converted to through electronic section the rating value that in described electric actuator, motor uses, motor driven gear is exported after seven grades of gear-driving speed-variables increase square, output shaft 20 is connected to valve rotatingshaft by cross key, thereby with the open and close of movable valve, the angle that output shaft 20 rotations are controlled by electronic section in valve switch angle and position is controlled.

Manual work is used conventionally under final controlling element debugging and powering-off state.Its principle is as follows:

In described electric actuator clutch part, upper clutch body 4 is fixed on substrate 1, stir clutch plectrum 10, clutch plectrum 10Ji Dai moving mandrel 2 and lower clutch body 5 rotate and move down, duplicate gear 7 undergears depart from upper level small gear, gear train assembly interrupts, and the binding site of upper and lower detached body 4,5 has two planes simultaneously, and clutch plectrum 10 rotates to after several angle, two planes overlap and block, and realize the locating function of clutch mechanism.Rotary manual operating position 20, realizes the control of final controlling element to the open and close of valve.When clutch resets, by clutch plectrum 10 rotary resets, lower clutch body 5 move under the effect of spring 8 active forces and manual force and with upper clutch body 4 in conjunction with and fixing, upper and lower detached body combination, duplicate gear gearwheel and the engagement of previous stage small gear (duplicate gear small gear meshes with rear one-level gearwheel always), gear train assembly is communicated with, and electric control system recovers.

Claims (7)

1. a hand clutch mechanism, by upper clutch body (4), lower clutch body (5), supported spring (8), setting sleeve (9), clutch plectrum (10), duplicate gear (7), Cock screw (6), fixed block (3), mandrel (2), setting sleeve (9) composition for axle;

It is upper that wherein said upper clutch body (4) is connected to substrate (1), and fixing with fixed block for axle (3); Lower clutch body (5) is fixed on mandrel (2) by Cock screw (6); Under duplicate gear (7), have supported spring (8), setting sleeve (9), in supported spring (8) below, is enclosed within on mandrel (2); It is upper that O type circle (14) is assemblied in body (11), coordinates with mandrel (2);

It is characterized in that: upper clutch body (4) adopts coordinating of key groove with lower clutch body (5).

2. hand clutch mechanism as claimed in claim 1, is characterized in that: key groove is between 15 ° to 45 °.

3. hand clutch mechanism as claimed in claim 1, is characterized in that: upper clutch body (4) has upper limit plane (21), and lower clutch body (5) has lower limit plane (22).

4. hand clutch mechanism as claimed in claim 1, is characterized in that: upper clutch body (4) is connected on substrate (1) by D type Placement.

5. hand clutch mechanism as claimed in claim 1, is characterized in that: spacing column (19) is set in main body (11).

6. hand clutch mechanism as claimed in claim 1, is characterized in that: duplicate gear (7) is Spielpassung with mandrel (2).

7. hand clutch mechanism as claimed in claim 1, is characterized in that: fixed block for axle (3) is bolt or circlip for shaft.

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