Single-motor double-shaft electric three-station rapid isolation mechanism

Abstract

The utility model relates to a single-motor double-shaft electric three-station rapid isolation mechanism which comprises an installation table, the installation table comprises a bottom layer substrate, a middle layer substrate and a top layer substrate, and the top layer substrate and the middle layer substrate are respectively provided with an electric isolation mechanism and a manual isolation mechanism with the same rotating shaft. The electric isolation mechanism and the manual isolation mechanism respectively drive a first manual shaft or a second manual shaft to drive a main output shaft to rotate through a motor and a manual operation, and drive a large spring part to rotate through meshing transmission so as to realize three-station switching-on and switching-off. According to the utility model, through the arrangement of the electric isolation mechanism and the manual isolation mechanism, the switching-on and switching-off of the three-station machine switch are respectively controlled electrically and manually, the motor has high stability and reliability and can stably operate for a long time, and the manual control can be flexibly operated according to actual conditions.

Description

Technical Field

[0001] The utility model relates to the technical field of power transmission and distribution isolation devices, in particular to a single-motor, dual-axis, electric, three-station rapid isolation mechanism. Background Art

[0002] A three-position rapid isolation mechanism is a complex mechanical device widely used in power systems, typically used to control and protect high-voltage circuits. When circuit repair or maintenance is required, a three-position isolation switch can be used to isolate the power supply from the load, preventing accidents caused by sudden power reconnection. Its primary function is to control the isolation and grounding of the circuit by closing and opening the isolation switch, while also ensuring worker safety. Conventional three-position rapid isolation mechanisms include dual-motor, dual-shaft designs and single-motor, dual-shaft designs. Existing single-motor, dual-shaft, three-position rapid isolation mechanisms, such as the three-position electric operating mechanism for switchgear disclosed in Publication No. CN102354627A, contain a drive unit, a manual interlock, and an electrical control unit within their chassis. The drive unit utilizes a single motor, a gear pair, a worm gear pair, a bidirectionally controllable overrunning clutch, and an output shaft. The drive unit is connected to a three-position isolation and grounding switch via a coupling to enable closing, opening, and grounding operations. However, this three-position rapid isolation mechanism is complex in structure, and if the motor or circuit is damaged, the three-position switch completely fails, resulting in significant limitations and low safety. Utility Model Content

[0003] In view of the defects of the existing three-station rapid isolation mechanism, which has a complex structure, complete failure of the three-station switch when the motor is damaged, and low safety, the utility model provides a single-motor dual-axis electric three-station rapid isolation mechanism with a simple structure. When the motor or circuit is damaged, the three-station switch is still effective, has fewer limitations, and higher safety performance.

[0004] The utility model provides the following technical solutions:

[0005] It includes a mounting platform, which includes a bottom substrate, a middle substrate and a top substrate. The bottom substrate, the middle substrate and the top substrate are connected by fixed columns and are arranged in ascending order in the longitudinal direction. The main output shaft is rotatably installed at the center of the bottom substrate, and the first manual shaft and the second manual shaft are rotatably installed on the middle substrate. The top substrate and the middle substrate are respectively provided with an electric isolation mechanism and a manual isolation mechanism on the same rotating shaft. The electric isolation mechanism and the manual isolation mechanism respectively drive the main output shaft to rotate through a motor and manually drive the first manual shaft or the second manual shaft, and drive the large spring component to rotate through meshing transmission to realize the closing and opening of the three-position switch.

[0006] Preferably, the electric isolation mechanism includes a main output shaft, a first manual shaft and a second manual shaft. Above the top substrate, the main output shaft is sequentially installed with an assembly plate and an interlocking shield near the shaft head. One end of the assembly plate is connected to the top substrate through a support rod, and the other end is rotatably installed with a protective spur gear. The shaft head of the main output shaft is installed with an indicator sign. The first manual shaft is sequentially installed with a first transmission plate and a first spur gear. The first spur gear is symmetrically installed with rivet columns that adapt to the arc surface of the first spur gear. The second manual shaft is sequentially installed with a second transmission plate and a second spur gear. The second transmission plate is fixedly connected to the first spur gear through the rivet columns. A motor is provided between the first manual shaft and the second manual shaft, and the motor is installed on the motor mounting plate. The motor shaft of the motor passes through the motor mounting plate and is sequentially installed with a motor transmission plate and a motor gear. The surface of the motor gear is installed with rivet columns that adapt to the motor transmission plate. The first spur gear and the second spur gear are both meshed with the motor gear.

[0007] Preferably, the manual isolation mechanism includes a main output shaft, a first manual shaft and a second manual shaft. Between the middle substrate and the top substrate, the main output shaft is sequentially installed with an upper sheave output plate and a lower sheave output plate from top to bottom. The upper sheave output plate and the lower sheave output plate are both provided with needle roller grooves. The first manual shaft and the second manual shaft are symmetrically installed with a first grounding upper plate and a second grounding upper plate respectively. Below the first grounding upper plate, the first manual shaft is sequentially installed with a first grounding lower plate and a first isolation lower plate. Below the second grounding upper plate, the second manual shaft is installed with a second isolation lower plate. Needle roller bearings are both installed on the heads of the first isolation lower plate and the second isolation lower plate, and the needle roller bearings match the needle roller grooves.

[0008] Preferably, a large spring component is provided between the first manual shaft and the second manual shaft, and the large spring component includes a linked telescopic shaft and a compression spring. A mounting column is provided between the first grounded upper plates, and a mounting column is provided between the second grounded upper plates. Both ends of the linked telescopic shaft are clamped on the mounting columns, and the compression spring is sleeved on the linked telescopic shaft.

[0009] Preferably, a magnetic blow switch is installed on the top substrate on the right side of the main output shaft, and a door interlocking device is installed on the top substrate near the edge of the top substrate.

[0010] Preferably, the door interlock device is installed with a door interlock bracket via a connecting plate, and the door interlock bracket is connected to the top substrate via a fixed support column.

[0011] Preferably, corresponding to the door coupling bracket, the top substrate is installed with a flashlight lock, and a flashlight locking block is installed on the side of the flashlight lock.

[0012] Preferably, a micro switch is installed on the flashlight lock below the flashlight locking block, and the flashlight lock and the micro switch are adapted to each other. A central micro switch is installed on the top substrate between the main output shaft and the motor gear, and the central micro switch can be pressed by the motor transmission plate to realize circuit opening and closing.

[0013] The beneficial effects of the utility model are:

[0014] 1. The utility model realizes the closing and opening of the three-station machine switch by electric and manual control respectively by setting an electric isolation mechanism and a manual isolation mechanism. The system control motor usually has high stability and reliability and can operate stably for a long time. Manual control allows the operator to operate flexibly according to actual conditions. Especially when the electronic or motor control system fails or special operation is required, manual control can be used as a backup means or as a common means, which greatly reduces the limitations of the overall mechanism. The two usage modes increase the safety of the equipment.

[0015] 2. The design of the protective straight teeth can provide work protection while serving as a transmission component. This design is very clever, increasing the safety performance of the entire mechanism and further ensuring the safety of the staff.

[0016] 3. The main output shaft, the first manual shaft and the second manual shaft serve as electric and manual transmission shafts at the same time, ensuring the coordinated operation of the components while reducing the complexity of the system, that is, controlling costs and improving the operating efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is an overall three-dimensional diagram of a single-motor, dual-axis, electric three-station rapid isolation mechanism of the utility model;

[0019] Figure 2 This is a three-dimensional diagram of a workbench of a single-motor, dual-axis, electric three-station rapid isolation mechanism of the utility model;

[0020] Figure 3 This is a second-angle perspective view of a rolling workbench with a single-motor, dual-axis, electric, three-station rapid isolation mechanism.

[0021] Figure 4 This is a schematic diagram of the structure of the manual axis portion of a single-motor, dual-axis, electric, three-station rapid isolation mechanism of the utility model;

[0022] Figure 5 This is a top view of the manual opening state of a single-motor, dual-axis, electric, three-station rapid isolation mechanism of the utility model;

[0023] Figure 6 This is a three-dimensional diagram of the motor-opening state of a single-motor, dual-axis, electric, three-station rapid isolation mechanism of the utility model;

[0024] Figure 7 This is a top view of the manual closing of a single-motor, dual-axis, electric, three-station rapid isolation mechanism of the utility model;

[0025] Figure 8 This is a three-dimensional diagram of the motor closing of a single-motor, dual-axis, electric, three-station rapid isolation mechanism of the utility model.

[0026] In the picture:

[0027] 1. Mounting table; 11. Bottom base plate; 111. Main output shaft; 1111. Assembly plate; 1112. Interlocking shield; 1113. Protective spur gear; 1114. Upper sheave output plate; 1115. Lower sheave output plate; 1116. Indicator plate; 1117. Rivet stud; 12. Middle base plate; 121. First manual shaft; 1211. First transmission plate; 1212. First spur gear; 1213. First grounding upper plate; 1214. First grounding lower plate; 1215. First isolation lower plate; 122. Second manual shaft; 1221. Second transmission plate; 1222 , second straight teeth; 1223, second grounding upper plate; 1224, second isolation lower plate; 13, top substrate; 131, motor; 1311, motor gear; 1312, motor transmission plate; 132, motor mounting plate; 133, door interlock device; 1331, door interlock bracket; 134, support rod; 135, flashlight lock; 136, magnetic blow switch; 2, large spring component; 21, linked telescopic shaft; 22, compression spring; 23, mounting column; 3, needle bearing; 4, micro switch; 5, flashlight lock; 51, flashlight lock block; 6, center micro switch. DETAILED DESCRIPTION

[0028] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0029] like Figure 1 - Figure 8As shown, the utility model is a single-motor, dual-axis, electric, three-station rapid isolation mechanism, which includes a mounting platform 1, the mounting platform 1 includes a bottom substrate 11, a middle substrate 12, and a top substrate 13. The bottom substrate 11, the middle substrate 12, and the top substrate 13 are connected by fixed columns and are arranged in layers in the longitudinal direction. A main output shaft 111 is rotatably installed at the center of the bottom substrate 11, and the extended end of the main output shaft 111 passes through the middle substrate 12 and the top substrate 13 in sequence. The middle substrate 12 is rotatably and symmetrically installed with a first manual shaft 121 and a second manual shaft 122. The shaft heads of the first manual shaft 121 and the second manual shaft 122 both pass through the top substrate 13. The top substrate 13 and the middle substrate 12 are respectively provided with an electric isolation mechanism and a manual isolation mechanism on the same rotating axis. The electric isolation mechanism and the manual isolation mechanism respectively drive the first manual shaft 121 or the second manual shaft 122 to rotate by the motor 131 or manually, and drive the large spring component 2 to rotate through meshing transmission to realize the closing and opening of the three-station switch.

[0030] The electric isolation mechanism includes a main output shaft 111, a first manual shaft 121 and a second manual shaft 122. Above the top substrate 13, the main output shaft 111 is sequentially installed with an assembly plate 1111 and an interlocking shield 1112 near the shaft head. One end of the assembly plate 1111 is connected to the top substrate 13 through a support rod 134, and the other end is rotatably installed with a protective straight tooth 1113. The shaft head of the main output shaft 111 is installed with an indicator plate 1116. The first manual shaft 121 is sequentially installed with a first transmission plate 1211 and a first straight tooth 1212. The first straight tooth 1212 is symmetrically installed with a rivet stud that adapts to the arc surface of the first straight tooth 1212. The second manual shaft 122 is sequentially installed with A second transmission plate 1221 and a second spur tooth 1222 are fixedly connected to the first spur tooth 1212 via a rivet post. A motor 131 is provided between the first manual shaft 121 and the second manual shaft 122. The motor 131 is mounted on a motor mounting plate 132. The motor shaft of the motor 131 passes through the motor mounting plate 132 and is sequentially mounted with a motor transmission plate 1312 and a motor gear 1311. A rivet post adapted to the motor transmission plate 1312 is mounted on the surface of the motor gear 1311. The first spur tooth 1212 and the second spur tooth 1222 are both meshed with the motor gear 1311. The arrangement of the rivet post allows the gear to rotate when the transmission plate rotates to a certain position.

[0031] The manual isolation mechanism includes a main output shaft 111, a first manual shaft 121 and a second manual shaft 122; between the middle substrate 12 and the top substrate 13, the main output shaft 111 is sequentially installed with an upper groove wheel output plate 1114 and a lower groove wheel output plate 1115 from top to bottom, and the upper groove wheel output plate 1114 and the lower groove wheel output plate 1115 are both provided with a needle roller slide groove, and the first manual shaft 121 and the second manual shaft 122 are symmetrically installed with a first grounding upper plate 1213 and a second grounding upper plate 1223 respectively. Below the first grounding upper plate 1213, the first manual shaft 121 is sequentially installed with a first grounding lower plate 1214 and a first isolation lower plate 1215. Below the second grounding upper plate 1223, the second manual shaft 122 is installed with a second isolation lower plate 1224. The heads of the first isolation lower plate 1215 and the second isolation lower plate 1224 are both installed with needle roller bearings 3, and the needle roller bearings 3 match the needle roller slide grooves;

[0032] A large spring component 2 is provided between the first manual shaft 121 and the second manual shaft 122. The large spring component 2 includes a linked telescopic shaft 21 and a compression spring 22. A mounting post 23 is provided between the first grounded upper plate 1213 and the second grounded upper plate 1223. Both ends of the linked telescopic shaft 21 are clamped on the mounting posts 23. The compression spring 22 is sleeved on the linked telescopic shaft 21.

[0033] On the right side of the main output shaft 111, a magnetic blow switch 136 is installed on the top substrate 13. Near the edge of the top substrate 13, a door interlock device 133 is installed on the top substrate 13. The door interlock device 133 is installed with a door interlock bracket 1331 through a connecting plate. The door interlock bracket 1331 is connected to the top substrate 13 through a fixed support column. Corresponding to the door interlock bracket 1331, a flashlight lock 5 is installed on the top substrate 13. A flashlight lock block 51 is installed on the side of the flashlight lock 5. Below the flashlight lock block 51, a micro switch 4 is installed on the flashlight lock 5. The flashlight lock 5 and the micro switch 4 are adapted to each other, and the circuit can be opened and closed by rotating the flashlight lock 5. Between the main output shaft 111 and the motor gear, a center micro switch 6 is installed on the top substrate 13. The center micro switch 6 can be pressed by the motor transmission plate 1312 to open and close the circuit.

[0034] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A single-motor, dual-axis, electric, three-station rapid isolation mechanism, comprising: The mounting platform (1) comprises a bottom substrate (11), a middle substrate (12) and a top substrate (13); the bottom substrate (11), the middle substrate (12) and the top substrate (13) are connected by fixed columns and arranged in a layered manner in the longitudinal direction; a main output shaft (111) is rotatably mounted on the center of the bottom substrate (11); a first manual shaft (121) and a second manual shaft (122) are rotatably mounted on the middle substrate (12); and the mounting platform (1) is characterized in that: the top substrate (13) and the middle substrate (12) are respectively provided with an electric isolation mechanism and a manual isolation mechanism on the same rotating shaft; the electric isolation mechanism and the manual isolation mechanism respectively drive the main output shaft (111) to rotate through a motor (131) and manually drive the first manual shaft (121) or the second manual shaft (122), and drive the large spring component (2) to rotate through meshing transmission to realize three-position closing and opening.

2. A single-motor, dual-axis, electric, three-station rapid isolation mechanism according to claim 1, characterized in that: The electric isolation mechanism comprises a main output shaft (111), a first manual shaft (121) and a second manual shaft (122); above the top substrate (13), the main output shaft (111) is sequentially mounted with an assembly plate (1111) and an interlocking shield (1112) near the shaft head; one end of the assembly plate (1111) is connected to the top substrate (13) via a support rod (134); the other end is rotatably mounted with a protective straight tooth (1113); the shaft head of the main output shaft (111) is mounted with an indicator plate (1116); the first manual shaft (121) is sequentially mounted with a first transmission plate (1211) and a first straight tooth (1212); the first straight tooth (1212) is symmetrically mounted with a rivet stud adapted to the arc surface of the first straight tooth (1212); The second manual shaft (122) is sequentially mounted with a second transmission plate (1221) and a second spur tooth (1222); the second transmission plate (1221) is fixedly connected to the first spur tooth (1212) via a rivet post; a motor (131) is provided between the first manual shaft (121) and the second manual shaft (122); the motor (131) is mounted on a motor mounting plate (132); a motor shaft of the motor (131) passes through the motor mounting plate (132) and is sequentially mounted with a motor transmission plate (1312) and a motor gear (1311); a rivet post adapted to the motor transmission plate (1312) is mounted on the surface of the motor gear (1311); the first spur tooth (1212) and the second spur tooth (1222) are both meshed with the motor gear (1311).

3. A single-motor, dual-axis, electric, three-station rapid isolation mechanism according to claim 1 or 2, characterized in that: The manual isolation mechanism comprises a main output shaft (111), a first manual shaft (121) and a second manual shaft (122). Between the middle substrate (12) and the top substrate (13), the main output shaft (111) is sequentially installed with an upper groove wheel output plate (1114) and a lower groove wheel output plate (1115) from top to bottom. The upper groove wheel output plate (1114) and the lower groove wheel output plate (1115) are both provided with a needle roller slot. The first manual shaft (121) and the second manual shaft (122) are symmetrically installed with a first grounding upper plate (1214). 13), a second grounding upper plate (1223), below the first grounding upper plate (1213), the first manual shaft (121) is sequentially installed with a first grounding lower plate (1214) and a first isolation lower plate (1215), below the second grounding upper plate (1223), the second manual shaft (122) is installed with a second isolation lower plate (1224), the heads of the first isolation lower plate (1215) and the second isolation lower plate (1224) are both installed with needle bearings (3), and the needle bearings (3) match the needle roller grooves.

4. A single-motor, dual-axis, electric, three-station rapid isolation mechanism as claimed in claim 3, characterized in that: A large spring component (2) is provided between the first manual shaft (121) and the second manual shaft (122), and the large spring component (2) includes a linked telescopic shaft (21) and a compression spring (22). A mounting post (23) is provided between the first grounded upper plates (1213), and a mounting post (23) is provided between the second grounded upper plates (1223). Both ends of the linked telescopic shaft (21) are clamped on the mounting posts (23), and the compression spring (22) is sleeved on the linked telescopic shaft (21).

5. A single-motor, dual-axis, electric, three-station rapid isolation mechanism as claimed in claim 4, characterized in that: On the right side of the main output shaft (111), the top substrate (13) is installed with a magnetic blow switch (136), and near the edge of the top substrate (13), the top substrate (13) is installed with a door interlocking device (133).

6. A single-motor, dual-axis, electric, three-station rapid isolation mechanism as claimed in claim 5, characterized in that: The door interlock device (133) is mounted with a door interlock bracket (1331) via a connecting plate, and the door interlock bracket (1331) is connected to a top substrate (13) via a fixed support column.

7. A single-motor, dual-axis, electric, three-station rapid isolation mechanism as claimed in claim 6, characterized in that: Corresponding to the door coupling bracket (1331), the top substrate (13) is installed with a flashlight lock (5), and a flashlight lock block (51) is installed on the side of the flashlight lock (5).

8. A single-motor, dual-axis, electric, three-station rapid isolation mechanism as claimed in claim 7, characterized in that: Below the flashlight locking block (51), the flashlight locking block (5) is equipped with a micro switch (4), and the flashlight locking block (5) and the micro switch (4) are adapted to each other. Between the main output shaft (111) and the motor gear, the top substrate (13) is equipped with a central micro switch (6), and the central micro switch (6) can be pressed by the motor transmission plate (1312) to realize circuit opening and closing.

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