CN201134386Y

CN201134386Y - Output angle positioning apparatus for operating mechanism

Info

Publication number: CN201134386Y
Application number: CNU200720303458XU
Authority: CN
Inventors: 赵文闯
Original assignee: SHANGHAI HUA TONG SWITCHGEAR CO Ltd
Current assignee: SHANGHAI HUA TONG SWITCHGEAR CO Ltd
Priority date: 2007-12-27
Filing date: 2007-12-27
Publication date: 2008-10-15
Anticipated expiration: 2017-12-27

Abstract

The utility model discloses a locating device for a control mechanism output angle, which is characterized in that a device is added at the front of an output shaft of the control mechanism, and the device is composed of a groove plate, a lock plate, a shift rod and a pin. The pin is fixed on the shift rod, the shift rod and the lock plate are fixed on a driving shaft of the control mechanism via keys, and the groove plate is fixed on the output shaft of the control mechanism via keys. Through the device, output positions of the output shaft are enabled to be fixed completely, each position is not changed along with the wave motion of control voltage of an electric motor, and requirements on the precision of the mounting position of each stroke switch in the control mechanism are largely reduced, thereby saving adjusting time, largely reducing impact to a driving system, and largely increasing mechanical service life and reliability of the control mechanism.

Description

A kind of operating mechanism output angle positioner

Technical field:

The utility model relates to the operating mechanism of a kind of three-station isolating/grounding switch in a kind of gases at high pressure insulated metal enclosed switch equipment (being called for short GIS), belongs to low-voltage electrical apparatus manufacturing technology field.

Background technology:

Gases at high pressure insulated metal enclosed switch equipment three-station isolating/grounding switch is by operating mechanism the Position Control of its moving contact to be realized its function, and is very high to the accuracy requirement of operating mechanism output angle.Existing operating mechanism generally adopts reversible electric machine to pass through directly to export after worm gear or the gear reduction, the control of each position is finished by the break-make of the inner corresponding travel switch of operating mechanism, because the inertia of drive system, after the travel switch action, the output shaft of operating mechanism can not stop operating at once, and the inertia of drive system is relevant with the voltage on being applied to motor, the height fluctuation of voltage can influence the inertia size of drive system, so cause the uncertainty of operating mechanism output corner, have a strong impact on the fail safe and the reliability of three-station isolating/grounding switch.

Summary of the invention:

Problem in view of above-mentioned existence, the purpose of this utility model provides a kind of operating mechanism output angle positioner, this operating mechanism output angle positioner is not only simple in structure, easy and simple to handle, and can guarantee the fail safe and the reliability of three-station isolating/grounding switch.

The technical solution of the utility model is achieved like this:

The utility model is to add a device before the output shaft of operating mechanism, and this device is made up of frid, jam plate, driving lever and pin.Pin is fixed on the driving lever, and driving lever and jam plate are fixed on together by key on the power transmission shaft of operating mechanism, and frid is fixed on the output shaft of mechanism by key.By this device, make the outgoing position of output shaft be completely fixed, each position does not change with the fluctuation of motor operation voltage; The requirement of each travel switch installation site accuracy also reduces greatly in the operating mechanism, saves the adjustment time; Impact to drive system also greatly reduces, thereby has improved the mechanical endurance and the reliability of operating mechanism greatly.

Description of drawings:

Fig. 1 is a structure principle chart of the present utility model

Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7,, Fig. 8, Fig. 9, be schematic diagram of movements of the present utility model

Figure 10 is the vertical section structural map of the utility model embodiment

Wherein: 1-output shaft, 2-key, 3-frid, 4-key, 5-power transmission shaft, 6-jam plate, 7-driving lever, 8-pin, 9-static contact isolation switch, 10-radome, 11-moving contact, 12-operating axis, 13-gear, 14-radome, 15-earthed switch fixed contact.

Embodiment:

A kind of operating mechanism output angle positioner described in the utility model is to add a device (seeing accompanying drawing 1) before the output shaft of operating mechanism, and this device is by frid 3, jam plate 6, driving lever 7 and sell 8 and form.Frid 3 is fixed on by key 2 on the output shaft 1 of mechanism, and pin 8 is fixed on the driving lever 7, and driving lever 7 links to each other with power transmission shaft 5 by key 4 with jam plate 6, constitutes a kind of accurately device of location of operating mechanism output angle that makes.On frid, be provided with two open slot A and B, driving lever 7 can be stirred the A or the B groove of frid 3 by pin 8, thereby makes mechanism's output shaft 1 can counterclockwise or clockwise rotate a fixing angle, and accurately reposition.In addition, on frid 3, be provided with three sections concave arcs, these three sections concave arcs cooperate with the external arc of jam plate 6; After mechanism's output shaft 1 arrived three assigned addresses, the frid of fixing with output shaft 13 was all locked and can not rotate by jam plate 6; And when driving lever 7 was stirred the A of frid 3 or B groove by pin 8, jam plate 6 was automatically terminated with the locking of frid 3.

Concrete operation principle of the present utility model is:

When the power transmission shaft 5 of operating mechanism clockwise rotates during in Fig. 1 position, when arriving Fig. 2 position, the pin 8 on the driving lever 7 enters the B groove of frid 3, and pin 8 stirs frid 3 and output shaft 1 rotates counterclockwise (see figure 3); Arrive the position of Fig. 4 up to output shaft 1; Sell the 8 B grooves that just break away from frid 3 this moment, power transmission shaft 5 may be because inertia just stops (see figure 5) after continuing to clockwise rotate certain angle, but frid 3 stops on the position shown in Figure 4 output shaft 1 because of the locking action of jam plate 6 exactly.

When the power transmission shaft 5 of operating mechanism rotates counterclockwise during in Fig. 5 position, when arriving Fig. 4 position, the pin 8 on the driving lever 7 enters the B groove of frid 3, and pin 8 stirs frid 3 and output shaft 1 clockwise rotates (see figure 3); Arrive the position of Fig. 2 up to output shaft 1; Sell the 8 B grooves that just break away from frid 3 this moment, power transmission shaft 5 may be because inertia just stops (see figure 1) after continuing to rotate counterclockwise certain angle, but frid 3 stops on the centre position shown in Figure 2 output shaft 1 because of the locking action of jam plate 6 exactly.

When the power transmission shaft 5 of operating mechanism rotates counterclockwise during in Fig. 1 position, when arriving Fig. 6 position, the pin 8 on the driving lever 7 enters the A groove of frid 3, and pin 8 stirs frid 3 and output shaft 1 clockwise rotates (see figure 7); Arrive position shown in Figure 8 up to output shaft 1; Sell the 8 A grooves that just break away from frid 3 this moment, power transmission shaft 5 may be because inertia just stops (see figure 9) after continuing to rotate counterclockwise certain angle, but frid 3 stops on the position shown in Figure 8 output shaft 1 because of the locking action of jam plate 6 exactly.

When the power transmission shaft 5 of operating mechanism clockwise rotates during in Fig. 9 position, when arriving Fig. 8 position, the pin 8 on the driving lever 7 enters the A groove of frid 3, and pin 8 stirs frid 3 and output shaft 1 rotates counterclockwise (see figure 7); Arrive position (being the centre position) shown in Figure 6 up to output shaft 1; Sell the 8 A grooves that just break away from frid 3 this moment, power transmission shaft 5 may be because inertia just stops (see figure 1) after continuing to clockwise rotate certain angle, but frid 3 stops on the position shown in Figure 6 output shaft 1 because of the locking action of jam plate 6 exactly.

The utility model by this device, makes the outgoing position of output shaft be completely fixed owing to be to have added a device before the operating mechanism output shaft, and each position does not change with the fluctuation of motor operation voltage; The requirement of each travel switch installation site accuracy also reduces greatly in the operating mechanism, saves the adjustment time; Impact to drive system also greatly reduces, thereby has improved the mechanical endurance and the reliability of operating mechanism greatly.In addition, the utility model is because volume is little, simple in structure, and the reliability height can be applicable on the operating mechanism of three stations output of various gases at high pressure insulated metal enclosed switch equipment.

Claims

1, a kind of operating mechanism output angle positioner, include frid (3), jam plate (6), driving lever (7) and pin (8), it is characterized in that described frid (3) is fixed on the output shaft (1) of mechanism by key (2), pin (8) is fixed on the driving lever (7), driving lever (7) links to each other with power transmission shaft (5) by key (4) with jam plate (6), constitutes a kind of accurately device of location of operating mechanism output angle that makes.

2, operating mechanism output angle positioner according to claim 1, it is characterized in that two open slot A and B are arranged on the described frid (3), driving lever (7) can be stirred the A or the B groove of frid (3) by pin (8), thereby make mechanism's output shaft (1) can counterclockwise or clockwise rotate a fixing angle, but and reposition.

3, operating mechanism according to claim 1 goes out angle positioning device, it is characterized in that being provided with three sections concave arcs on the described frid (3), and these three sections concave arcs cooperate with the external arc of jam plate (6).