JPH0536731U - Switch operating device - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent an increase in the sliding force of the slider due to burrs or foreign matter adhering to the screw surface or running out of grease. [Structure] A slider 14 that is screwed into the screw rod 9 by rotating a screw rod 9 via reduction gears 8 and 10 by the output of a motor 7.
In the switch operating device for moving the slider along the threaded rod 9 and rotating the rotary shaft 17 by the movement of the slider 14 to open and close the switch. 1
A groove 33 is formed in the groove 5 substantially perpendicular to the thread.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention rotates the screw rod through the reduction gear by the output of the motor, moves the slider screwed to the screw rod along the screw rod, and rotates the rotating shaft by the movement of the slider to open. The present invention relates to a switch operating device that opens and closes a switch.

[0002]

[Prior Art]

 The conventional operating device for switches such as disconnecting switches is configured as shown in Fig. 4 and below. Fig. 4 shows the appearance of the operating device that performs the operation of turning on / off the disconnecting switch and turning on / off the grounding switch, that is, grounding. Reference numeral 1 is a frame, and 2 is a lever supported by the frame 1, which is rotated to each of an on / off position and a grounding position. Reference numeral 3 is an auxiliary lever connected to the lever 2 by a link 4, reference numeral 5 is a disconnecting switch entrance side stopper of the auxiliary lever 3, and reference numeral 6 is a switch.

FIG. 5 shows the internal structure of the operating device, FIGS. 6 and 7 show a slider portion, and FIG. 8 shows a slider. 7 is a motor, 8 is a small gear of the output shaft of the motor 7, and 9 is a screw. A rod 10 is a large gear fixed to the screw rod 9 and meshed with the small gear 8, 11 is a threaded portion on the right side of the screw rod 9, 12 is a non-threaded portion of the screw rod 9 on which no thread is formed, and 13 is a screw It is a disc spring provided on the left side of the rod 9.

Reference numeral 14 is a slider in which a threaded portion 15 is screwed onto a screw rod 9, 16 is a sliding rod projecting from both side surfaces of the slider 14, 17 is a rotating shaft, and 18 is fixed to a rotating shaft 17. Two rotary levers are provided, 19 is a notch groove formed at the tip of the rotary lever 18 and the sliding rod 16 is loosely fitted, and 20 is a switch, which stops the motor 7 at the final position of the cut.

Reference numeral 21 is a disconnector clutch body fixed to the rotary shaft 17, 22 is an operation shaft provided on the axis of the rotary shaft 17 so as to be displaceable in the axial direction, and 23 is rotatable and slidable on the operation shaft 22. The ground switchgear clutch body 24 is a clutch fixed to one end of the operating shaft 22, and is provided between the clutch bodies 21 and 23 so as to be coupled to the clutch bodies 21 and 23. A spring 25 is provided between the ground switchgear clutch body 23 and the clutch 24, and biases the clutch 24 to the disconnector clutch body 21 side.

Reference numeral 26 is a grounding switch stopper, 27 is a bearing stand, 28 is an interlock coil, 29 is an interlock pin, 30 is a lock pin, 31 is a stopper, and the operating shaft 22 is subjected to the urging force of the spring 25. When the clutch 24 is pulled out to displace the clutch 24 to the coupling position with the ground switch clutch body 23, the clutch 24 is rotated along with the displacement of the clutch 24 and is inserted into the cutout portion 32 of the disconnector clutch body 21. Interlock the disconnector clutch body 21.

The output of the motor 7 is output from the small gear 8, the large gear 10, the screw rod 9, the slider 14, the rotary lever 18, the rotary shaft 17, the disconnector clutch body 21, the clutch 24, and the operating shaft 22. It is transmitted to the lever 2 via.

Since the non-threaded portion 12 is formed on the threaded rod 9 in which the slider 14 is in the cut position, the slider 14 moved from the inserted position is in the cut position. Then, it is disengaged from the screw portion 11, the movement of the slider 14 is stopped, and the motor 20 is stopped by the switch 20. Next, when the motor 7 rotates in the reverse direction to move the slider 14 in the inserting position direction, the biasing force of the disc spring 13 acts as shown in FIG. Easy to screw.

[0009]

[Problems to be solved by the device]

 In the above-mentioned conventional device, if the slider 14 continues to rotate at the position of the non-threaded portion 12 when the motor 7 continues to rotate due to a failure of the switch 20, or when the manual operation is continuously performed, The disc spring 13 causes the slider 14 to continue to contact the end edge of the threaded portion 11, and the threads of the threaded portion 11 are crushed to form a flash, and the flash enters the meshing surface of the screw, and the sliding force of the slider 14 is increased. There is a problem of increase. Also, foreign matter may enter the meshing surface of the screw from the outside.

Furthermore, when the number of movements of the sliding element 14 between the entry position and the cutting position increases, there is a problem in that the meshing surface of the screw is out of grease and the sliding force increases. The present invention has been made in consideration of the above points, and an object thereof is to provide a switch operating device which prevents an increase in sliding force due to flash generated, foreign matter from the outside sticking to the screw surface, or grease breakage. ..

[0011]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention rotates a screw rod through a reduction gear by the output of a motor, moves a slider screwed to the screw rod along the screw rod, and moves the slider. In a switch operating device that opens and closes a switch by rotating a rotating shaft by motion, a groove that is substantially orthogonal to a screw thread is formed in a screw part screwed with a screw rod of a slider.

[0012]

[Action]

 In the switch operating device of the present invention configured as described above, the screw portion screwed into the threaded rod of the slider is formed with a groove that is substantially orthogonal to the thread, so that burrs and foreign matter are screwed. The rotation of the rod collects the grease in the groove, and the grease can be stored in the groove, which prevents the sliding force from increasing and stabilizes the sliding of the slider.

[0013]

【Example】

 An embodiment will be described with reference to FIGS. 1 to 3. In these drawings, the same reference numerals as those in FIGS. 4 to 8 denote the same or corresponding parts. 1 and 2 are a perspective view and a front view of one embodiment, in which a thread portion 15 of the slider 14 is provided with a groove 33 substantially orthogonal to the thread. The length L2 of this groove 33 is equal to the thickness L1 of the slider 14, and as shown in FIG. 3A, the depth H of the groove 33 is the outer diameter, which is the root diameter of the threaded portion 15, being d2, the mountain diameter. When the inner diameter is d1, there is a relationship of H ≧ (d2-d1) × 1/2, and as shown in FIG. 3B, the width B of the groove 33 is preferably about (d2-d1) × 1/2, The shape of the groove 33 may be the rectangular shape shown in FIG. 3B or the circular shape shown in FIG. 3C. Further, the number of the grooves 33 is not limited to one, and a plurality of grooves may be provided.

[0014]

[Effect of the device]

 Since the present invention is configured as described above, it has the following effects. Since a groove 33 that is substantially orthogonal to the screw thread is formed in the threaded portion 15 that is screwed into the threaded rod 9 of the slider 14, the generated burrs and mixed foreign matter are collected in the groove 33 by the rotation of the threaded rod 9. In addition, it is possible to prevent grease breakage by storing grease in the groove 33, prevent an increase in sliding force, and stabilize sliding of the slider 14.

[Brief description of drawings]

FIG. 1 is a perspective view of an essential part of an embodiment of the present invention.

FIG. 2 is a front view of FIG.

3A, 3B and 3C are front views of a part of another embodiment, respectively.

FIG. 4 is an external view of an operating device.

FIG. 5 is a perspective view of the inside of the operating device.

6 is a cutaway front view of the slider portion of FIG.

FIG. 7 is a partial cutaway front view of the other state of FIG. 6;

FIG. 8 is a front view of a conventional slider.

[Explanation of symbols]

 7 Motor 8 Small Gear 9 Screw Rod 10 Large Gear 14 Slider 15 Screw Part 17 Rotating Shaft 22 Rotating Shaft 33 Groove

Claims (1)

[Scope of utility model registration request] 1. A screw rod is rotated by the output of a motor via a reduction gear, a slider screwed to the screw rod is moved along the screw rod, and the rotary shaft is moved by the movement of the slider. In the switch operating device that rotates to open and close the switch,
A switch operating device in which a groove substantially orthogonal to a screw thread is formed in a screw portion of the slider that is screwed into the screw rod.