A new type of mechanical stop device for three-position electric mechanism

Abstract

The present invention discloses a novel three-station electric mechanism mechanical stop device, including a flange seat, the top of the flange seat is fixed on the frame, and a plurality of countersunk holes are opened on the outer side of the lower end of the flange seat, and balls and pins are installed in the countersunk holes, the pins are arranged above the balls, and both the pins and the balls can slide in the countersunk holes, a pressure plate is sleeved on the shaft of the flange seat, and a spring is sleeved on the shaft of the flange seat on the upper side of the pressure plate, one end of the spring is in contact with the frame, and the other end presses the pressure plate, the lower end of the flange seat is connected to the transmission gear, and the transmission gear is provided with holes of the same specification corresponding to the countersunk holes, and the middle of the transmission gear is connected to the input shaft, and arm plates one and two are respectively arranged on the left and right sides of the lower end of the pressure plate. The novel three-station electric mechanism mechanical stop device of the present invention adopts a novel structure, which well solves the problems of travel switch failure and brake pad heating and burning caused by electrical control stop, while reducing the cost of the mechanism, and is stable and reliable.

Description

Technical Field

[0001] The invention relates to a stop device, in particular to a novel three-position electric mechanism mechanical stop device. Background Art

[0002] The three-position mechanism is an electric mechanism used in GIS or HGIS to drive a three-position switch. It requires a large input shaft torque, accurate positioning and the ability to lock the position. In the three-position electric mechanism, electrical braking has always been used to stop the position, and the purpose is achieved through the control of the travel switch and the motor brake pad. This structure is prone to travel switch failure and brake pad heating and burning, resulting in serious problems such as inaccurate stop or even failure, and the electrical control circuit is complex and the secondary components are expensive. Therefore, those skilled in the art provide a new type of mechanical stop device for a three-position electric mechanism to solve the problems raised in the above background technology. Summary of the invention

[0003] The purpose of the present invention is to provide a novel mechanical stop device for a three-position electric mechanism to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A novel three-station electric mechanism mechanical stop device comprises an electromagnet, an arm plate, a positioning pin, a connecting pin, a connecting rod, an arm plate, a pressure plate, a ball, a column pin, a spring, a flange seat, an input shaft, a transmission gear, a positioning pin, and a connecting pin;

[0006] The top of the flange seat is fixed on the frame, and a plurality of countersunk holes are opened on the outer side of the lower end of the flange seat, and balls and pins are installed in the countersunk holes. The pins are arranged above the balls, and both the pins and the balls can slide in the countersunk holes. A pressure plate is sleeved on the shaft of the flange seat, and a spring is sleeved on the upper side of the pressure plate on the shaft of the flange seat, one end of the spring is in contact with the frame, and the other end presses the pressure plate;

[0007] The lower end of the flange seat is connected to the transmission gear, a hole of the same specification is opened on the transmission gear corresponding to the countersunk hole, and the middle of the transmission gear is connected to the input shaft;

[0008] Arm plate 1 and arm plate 2 are respectively arranged on the left and right sides of the lower end of the pressure plate, an electromagnet is arranged on the upper left side of arm plate 1, the lower sides of arm plate 1 and arm plate 2 are rotatably connected with the connecting rod through connecting pin 1 and connecting pin 2 respectively, and a positioning pin 1 is arranged in the middle of arm plate 1, and a positioning pin 2 is arranged in the middle of arm plate 2.

[0009] As a further solution of the present invention: the pressing plate is connected to the shaft of the flange seat in an up and down sliding manner.

[0010] As a further solution of the present invention: the countersunk holes on the flange seat are evenly distributed circumferentially, the number and size of the countersunk holes are determined according to the transmission angle and output torque of the input shaft, and the number of the countersunk holes and the number of holes on the transmission gear can be the same or different.

[0011] As a further solution of the present invention: the transmission gear and the input shaft can be connected by a hexagonal hole, a polygonal hole, a spline or a flat key.

[0012] As a further solution of the present invention: the input shaft is driven to rotate by a motor.

[0013] As a further solution of the present invention: the arm plate 1 rotates around the positioning pin 1 as the axis, and the arm plate 2 rotates around the positioning pin 2 as the axis.

[0014] As a further solution of the present invention: the rotation direction of the transmission gear can be clockwise or counterclockwise.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The invention discloses a novel three-station electric mechanism mechanical stop device, which adopts a novel structure and well solves the problems of travel switch failure and brake pad heating and burning caused by electrical control stop, and reduces the cost of the mechanism at the same time, and is stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure is a structural diagram of a novel mechanical stop device of a three-station electric mechanism.

[0018] Figure 2 The schematic diagram is a structural diagram of a new type of electromagnet in a mechanical stop device of a three-station electric mechanism under working conditions.

[0019] In the figure: 1, electromagnet; 2, arm plate 1; 3, positioning pin 1; 4, connecting pin 1; 5, connecting rod; 6, arm plate 2; 7, pressure plate; 8, ball bearing; 9, pin; 10, spring; 11, flange seat; 12, input shaft; 13, transmission gear; 14- positioning pin 2; 15- connecting pin 2. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figures 1-2In the embodiment of the present invention, a novel three-station electric mechanism mechanical stop device includes an electromagnet 1, an arm plate 2, a positioning pin 3, a connecting pin 4, a connecting rod 5, an arm plate 6, a pressure plate 7, a ball 8, a pin 9, a spring 10, a flange seat 11, an input shaft 12, a transmission gear 13, a positioning pin 14, and a connecting pin 15;

[0022] The top of the flange seat 11 is fixed on the frame, and a plurality of countersunk holes are opened on the outer side of the lower end of the flange seat 11, and the countersunk holes are installed with balls 8 and pins 9, the pins 9 are arranged above the balls 8, and the pins 9 and the balls 8 can slide in the countersunk holes, and a pressure plate 7 is sleeved on the axis of the flange seat 11, and a spring 10 is sleeved on the upper side of the pressure plate 7 on the axis of the flange seat 11, one end of the spring 10 is in contact with the frame, and the other end presses the pressure plate 7;

[0023] The lower end of the flange seat 11 is connected to the transmission gear 13, and a hole of the same specification is opened on the transmission gear 13 corresponding to the countersunk hole, and the middle of the transmission gear 13 is connected to the input shaft 12;

[0024] An arm plate 2 and an arm plate 2 6 are respectively arranged on the left and right sides of the lower end of the pressing plate 7, an electromagnet 1 is arranged on the upper left side of the arm plate 2, the lower sides of the arm plate 2 and the arm plate 2 6 are rotatably connected to the connecting rod 5 through a connecting pin 1 4 and a connecting pin 2 15 respectively, and a positioning pin 1 3 is arranged in the middle of the arm plate 2, and a positioning pin 2 14 is arranged in the middle of the arm plate 2 6.

[0025] The pressing plate 7 is slidably connected to the axis of the flange seat 11 up and down.

[0026] The countersunk holes on the flange seat 11 are evenly distributed circumferentially. The number and size of the countersunk holes depend on the transmission angle and output torque of the input shaft 12 , and the number of the countersunk holes and the number of holes on the transmission gear 13 may be the same or different.

[0027] The transmission gear 13 and the input shaft 12 can be connected by a hexagonal hole or a polygonal hole, or by a spline or a flat key.

[0028] The input shaft 12 is driven to rotate by the motor.

[0029] The arm plate 1 2 rotates around the positioning pin 1 3 as the axis, and the arm plate 2 6 rotates around the positioning pin 2 14 as the axis.

[0030] The transmission gear 13 can rotate clockwise or counterclockwise.

[0031] The working principle of the present invention is:

[0032] The flange seat 11 in the present invention is fixed on the frame, and a countersunk hole is opened on the flange seat 11, and a ball 8 and a pin 9 are installed in the countersunk hole. The ball 8 and the pin 9 can slide easily in the countersunk hole. A pressure plate 7 is sleeved on the shaft of the flange seat 11, and the pressure plate 7 can slide up and down on the shaft of the flange seat 11. A spring 10 is sleeved on the shaft at the same time, and one end of the spring 10 is pressed on the frame, and the other end is pressed on the cover plate 7. The other end of the flange seat 11 is connected to the transmission gear 13, and the transmission gear 13 is opened with the same hole as the flange seat 11. The countersunk hole on the flange seat 11 is opposite to the hole on the transmission gear 13. The spring 11 presses against the pressure plate 7 and clamps the ball 8 in the hole of the transmission gear 13, so that the position of the transmission gear 13 is stuck and immovable, thereby achieving the effect of stopping and locking, and accurate positioning;

[0033] When the transmission gear 13 needs to rotate, the electromagnet 1 is energized, and the electromagnet 1 pushes the arm plate 2 downward to rotate around the middle positioning pin 3. The arm plate 2 drives the arm plate 2 6 to move simultaneously through the connecting pin 4 and the connecting rod 5, thereby lifting the pressure plate 7 and compressing the spring 10, so that the column pin 9 and the ball 8 have space to move freely upward, so that the movement of the motor is transmitted to the transmission gear 13 through the input shaft 12. Since the column pin 9 and the ball 8 are not under pressure, the transmission gear 13 can easily squeeze the ball 8 and rotate forward. When it rotates to a certain angle until the countersunk hole on the flange seat 11 is opposite to the hole on the transmission gear 13, the electromagnet 1 is de-energized, and the spring 10 continues to provide pressure to the column pin 9 and the ball 8, and the ball 8 is stuck between the two holes. The transmission gear 13 is stuck and cannot move.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A new type of three-position electric mechanism mechanical stop device, characterized in that: It comprises an electromagnet (1), an arm plate 1 (2), a positioning pin 1 (3), a connecting pin 1 (4), a connecting rod (5), an arm plate 2 (6), a pressure plate (7), a ball (8), a column pin (9), a spring (10), a flange seat (11), an input shaft (12), a transmission gear (13), a positioning pin 2 (14), and a connecting pin 2 (15); The top of the flange seat (11) is fixed on the frame, and a plurality of sink holes are opened on the outer side of the lower end of the flange seat (11), and a ball (8) and a pin (9) are installed in the sink hole. The pin (9) is arranged above the ball (8), and the pin (9) and the ball (8) both slide in the sink hole. A pressure plate (7) is sleeved on the axis of the flange seat (11), and a spring (10) is sleeved on the upper side of the pressure plate (7) on the axis of the flange seat (11), one end of the spring (10) contacts the frame, and the other end presses the pressure plate (7); The lower end of the flange seat (11) is connected to a transmission gear (13), a hole of the same specification is opened on the transmission gear (13) corresponding to the countersunk hole, and the middle of the transmission gear (13) is connected to the input shaft (12); The lower end of the pressing plate (7) is provided with arm plate 1 (2) and arm plate 2 (6) on the left and right sides respectively, an electromagnet (1) is provided on the upper left side of the arm plate 1 (2), the lower sides of the arm plate 1 (2) and arm plate 2 (6) are rotatably connected to the connecting rod (5) through connecting pin 1 (4) and connecting pin 2 (15) respectively, and a positioning pin 1 (3) is provided in the middle of the arm plate 1 (2), and a positioning pin 2 (14) is provided in the middle of the arm plate 2 (6).

2. According to claim 1, a novel three-position electric mechanism mechanical stop device is characterized in that: The pressing plate (7) is slidably connected to the axis of the flange seat (11) up and down.

3. According to claim 1, a novel three-position electric mechanism mechanical stop device is characterized in that: The countersunk holes on the flange seat (11) are evenly distributed in the circumferential direction, the number and size of the countersunk holes are determined according to the transmission angle and output torque of the input shaft (12), and the number of the countersunk holes and the number of holes on the transmission gear (13) may be the same or different.

4. According to claim 1, a novel three-position electric mechanism mechanical stop device is characterized in that: The transmission gear (13) and the input shaft (12) are connected by a polygonal hole, a spline or a flat key.

5. According to claim 1, a novel three-position electric mechanism mechanical stop device is characterized in that: The input shaft (12) is driven to rotate by the motor.

6. A novel three-position electric mechanism mechanical stop device according to claim 1, characterized in that: The arm plate 1 (2) rotates around the positioning pin 1 (3) as the axis, and the arm plate 2 (6) rotates around the positioning pin 2 (14) as the axis.

7. A novel three-position electric mechanism mechanical stop device according to claim 1, characterized in that: The transmission gear (13) may rotate in a clockwise direction or a counterclockwise direction.

Images