Double-electric single-clutch three-station isolation mechanism

Abstract

A double-electric single-clutch three-station isolation mechanism comprises a front structural plate and a middle structural plate which are connected through a supporting column, and an isolation transmission shaft, a grounding transmission shaft, an isolation output shaft, a grounding output shaft and a mechanism output shaft are connected between the front structural plate and the middle structural plate in a coupling mode. Two gear reduction motors used for driving the isolation transmission shaft and the grounding transmission shaft respectively are arranged on the front structural plate, a gear box of each gear reduction motor is provided with an assembling back face, a positioning rod is arranged on each assembling back face, and the front structural plate is provided with an assembling matching face and an assembling top face. The assembling matching face makes contact with the assembling back face and is provided with a positioning inserting hole for limiting the final assembling position of the gear reducer motor on the front structural plate, the assembling top face is provided with a locking assembly which is in a preset shape and can retract after being extruded, and the positioning rod is provided with a locking inserting hole which is combined with the locking assembly and prevents the positioning rod from being disengaged from the positioning inserting hole. And connecting rod structures are arranged between the isolation transmission shaft and the isolation output shaft and between the grounding transmission shaft and the grounding output shaft.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power equipment, in particular to a double-electric single-clutch three-station isolation mechanism. Background Art

[0002] The three-position isolating switch is one of the core components of the inflatable cabinet and occupies an important position in the distribution network system. The three-position isolating switch combines the functions of the isolating switch and the grounding switch into one, realizing the function of switching between the three positions of connection, isolation and grounding.

[0003] Publication (Announcement) No.: CN107706035B discloses a three-station mechanism with a switch-off tripping device that integrates manual and electric functions, including a frame, on which an isolation transmission device, an isolation output device, a grounding transmission device, a grounding output device, an energy storage device, an electric drive device, and a switch-off tripping device are arranged. The electric drive device is connected to and drives the isolation transmission device through a one-way input mode. The isolation transmission device is connected to one end of the energy storage device and can rotate under the drive of manual input or motor drive to drive the energy storage device to store energy. When the energy storage device rotates past the maximum energy storage position, the stored energy is released to drive the isolation transmission device to continue rotating. At this time, the isolation transmission device can drive the isolation output device to rotate and output the closing torque. Torque, in the process of the isolation transmission device outputting the closing torque, the opening release device rotates and stores energy. After the energy storage state of the opening release device is released by external force, the opening release device can drive the isolation output device to reverse through the isolation transmission device to achieve isolation operation. The grounding transmission device is connected to the other end of the energy storage device and can rotate under the drive of external force to drive the energy storage device to store energy. After the energy storage device rotates to the maximum energy storage position, the stored energy is released to drive the grounding transmission device to continue to rotate. At this time, the grounding transmission device can drive the grounding output device to rotate and output the grounding torque. When the isolation transmission device rotates, the grounding transmission device is in the grounding starting state. When the grounding transmission device rotates, the isolation transmission device is in the closing starting state. This three-station structure uses the drive motor isolation mechanism and the grounding mechanism to separate and close. This method makes the operation more convenient and safe, but there is a defect, that is, the installation method in which the drive motor is set on the frame needs to be fixed by bolts or other methods during installation. This method makes the installation process more cumbersome, that is, it requires additional parts and auxiliary tools. Utility Model Content

[0004] The utility model aims to solve the above-mentioned shortcomings of the prior art and provides a dual-electric single-clutch three-station isolation mechanism to solve the above-mentioned problems.

[0005] The utility model adopts a technical solution to solve its technical problems: the dual-electric single-clutch three-station isolation mechanism comprises a front structure plate and a middle structure plate connected by pillars, an isolation transmission shaft, a grounding transmission shaft, an isolation output shaft, a grounding output shaft and a mechanism output shaft are axially connected between the front structure plate and the middle structure plate, two gear reduction motors for driving the isolation transmission shaft and the grounding transmission shaft respectively are arranged on the front structure plate, the gear box of the gear reduction motor has an assembly back side, a positioning rod is arranged on the assembly back side, the front structure plate has an assembly matching surface and an assembly top surface, the assembly matching surface contacts with the assembly back side and is provided with a positioning socket for limiting the final assembly position of the gear reduction motor on the front structure plate, a locking component with a preset shape and retractable under compression is arranged on the assembly top surface, a locking socket combined with the locking component and preventing the positioning rod from being separated from the positioning socket is arranged on the positioning rod, and a connecting rod structure is arranged between the isolation transmission shaft and the isolation output shaft, and between the grounding transmission shaft and the grounding output shaft.

[0006] To be further improved, the locking assembly includes a connecting seat and a locking rod. The connecting seat is arranged on the top surface of the assembly and has a first guide hole that defines the movement guide of the locking rod. The top surface of the assembly is provided with a second guide hole that allows part of the locking rod to enter the positioning hole and is coaxial with the first guide hole.

[0007] For further improvement, an anti-dropping piece is arranged on the locking rod, and the anti-dropping piece is located in the connecting seat.

[0008] For further improvement, a spring is arranged on the locking rod, one end of the spring abuts against the anti-slip sheet and the other end abuts against the inner side surface of the connecting seat, and is compressed and deformed when the locking rod moves in a direction of disengaging from the locking socket.

[0009] Further improvement, one end of the locking rod for entering the locking socket has a chamfered transition.

[0010] For further improvement, a gripping cap having an outer diameter greater than that of the locking rod is provided at one end of the locking rod exposed above the connecting seat.

[0011] To be further improved, the connecting rod structure includes a transmission shaft crank arm, a crank arm connecting plate, and an output shaft crank arm. The transmission shaft crank arm is arranged on an isolated transmission shaft or a grounded transmission shaft. One end of the crank arm connecting plate is axially connected to the transmission shaft crank arm, and the other end is axially connected to the output shaft crank arm. The output shaft crank arm is arranged on the isolated output shaft or the grounded output shaft.

[0012] The beneficial effects of the utility model are:

[0013] The utility model can quickly arrange the gear reduction motor on the front structure plate, and does not require additional parts and auxiliary tools during assembly and fixing, and is suitable for rapid and convenient assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a partial structural schematic diagram of the back side of the utility model;

[0016] Figure 3 For this utility model Figure 2 A partial enlarged schematic diagram of part A;

[0017] Figure 4 For this utility model Figure 2 A partial enlarged schematic diagram of part B;

[0018] Figure 5 This is a schematic diagram of the structure of the locking rod of the utility model;

[0019] Figure 6 It is a structural schematic diagram of the gear reduction motor of the utility model. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings:

[0021] Referring to the accompanying drawings: This dual electric single clutch three-station isolation mechanism comprises a front structure plate 1 and a middle structure plate 2 connected by pillars, characterized in that: an isolation transmission shaft 3, a grounding transmission shaft 4, an isolation output shaft 5, a grounding output shaft 6, and a mechanism output shaft 7 are axially connected between the front structure plate 1 and the middle structure plate 2, and two gear reduction motors 8 are respectively provided on the front structure plate 1 to drive the isolation transmission shaft 3 and the grounding transmission shaft 4, and the gear box of the gear reduction motor 8 has an assembly back side 81, and a positioning rod 9 is provided on the assembly back side 81, and the front structure plate 1 has an assembly An assembly mating surface 11 and an assembly top surface 12, the assembly mating surface 11 is in contact with the assembly back surface 81 and is provided with a positioning hole 10 for limiting the final assembly position of the gear reduction motor 8 on the front structure plate 1, the assembly top surface 12 is provided with a locking component 20 with a preset shape and retractable when squeezed, the positioning rod 9 is provided with a locking hole 91 that is combined with the locking component 20 and prevents the positioning rod 9 from being separated from the positioning hole 10, and a connecting rod structure 30 is provided between the isolation transmission shaft 3 and the isolation output shaft 5, and between the grounding transmission shaft 4 and the grounding output shaft 6. The principle of the utility model is that when assembling the gear reduction motor 8, the positioning rod 9 is inserted into the positioning socket 10, so that the position of the gear reduction motor 8 on the front structure plate 1 can be quickly determined, and then the locking assembly 20 is combined with the positioning rod 9 (that is, combined with the locking socket 91 of the positioning rod 9) to prevent the positioning rod 9 from being separated from the positioning socket 10, thereby keeping the gear reduction motor 8 on the front structure plate 1. This method realizes fast and convenient assembly without the need for additional tools and parts, and after assembly, the assembly mating surface 11 is in contact with the assembly back surface 81, thereby ensuring the stability of the gear reduction motor 8 when in use.

[0022] The first guide channel 20 is opened at the upper part of the front structure plate 1 through the first guide channel 20, and moves to the second guide channel 20 through the guide direction provided by the first guide channel 20, and then enters the positioning socket 10 through the guide direction provided by the second guide channel 20, and the first guide channel 20 and the second guide channel 20 are arranged vertically, so that the gear reduction motor 8 can be hung in the second guide channel 20 by its own weight, and even if the positioning rod 9 is separated from the positioning socket 10, the gear reduction motor 8 will not be separated from the front structure plate 1. This method does not require additional parts and auxiliary tools, and is convenient for the assembly of the gear reduction motor 8.

[0023] The locking assembly 20 includes a connecting seat 201 and a locking rod 202. The connecting seat 201 is arranged on the assembly top surface 12 and has a first guide hole 201-a that defines the movement guide of the locking rod 202. The assembly top surface 12 is provided with a second guide hole 12-a that allows part of the locking rod 202 to enter the positioning hole 10 and is coaxial with the first guide hole 201-a. The connecting seat 201 allows the locking rod 202 to remain in a position matching the locking hole 91, and also provides support for the locking rod 202 and enables movement. After entering the locking hole 91, the locking rod 202 exists on the moving trajectory of the positioning rod 9, thereby preventing the positioning rod 9 from moving, so that the positioning rod 9 is stably maintained in the positioning hole 10.

[0024] The locking rod 202 is provided with an anti-slip sheet 60, which is located in the connecting seat 201. The anti-slip sheet 60 is used to prevent the locking rod 202 from detaching from the connecting seat 201 when the locking rod 202 is operated, so that the locking rod 202 remains on the connecting seat 201, and the anti-slip sheet 60 is not integrally formed on the locking rod 202, but is connected to the locking rod 202 by a threaded connection. It is placed on the assembly top surface 12 before being connected to the locking rod 202, and then connected to the locking rod 202 when the locking rod 202 passes through the second guide socket 12-a and enters the locking socket 91. In this way, the situation where the locking rod 202 cannot reach the locking socket 91 due to the advance provision of the anti-slip sheet 60 will not occur.

[0025] A spring 40 is provided on the locking rod 202, one end of the spring 40 abuts against the anti-slip sheet 60, and the other end abuts against the inner side surface of the connecting seat 201, and is compressed and deformed when the locking rod 202 moves in the direction of disengaging from the locking hole 91. The spring 40 enables the locking rod 202 to have a self-resetting effect, that is, when the locking rod 202 is pulled up and disengaged from the locking hole 91, the spring 40 is compressed and deformed through the anti-slip sheet 60. After the user releases the locking rod 202, the locking rod 202 resets itself under the action of the spring 40 and enters the locking hole 91 by itself, so that there is no need to do too many other locking actions, which is convenient and quick.

[0026] One end of the locking rod 202 used to enter the locking hole 91 has a chamfered transition. Such a setting can reduce the outer diameter of the entry end of the locking rod 202, and can avoid getting stuck when entering the locking hole 91, so that after the user releases the locking rod 202, the locking rod 202 can quickly enter the locking hole 91.

[0027] One end of the locking rod 202 exposed above the connecting seat 201 is provided with a gripping cap 50 whose outer diameter is larger than that of the locking rod 202 .

[0028] The connecting rod structure 30 includes a transmission shaft crank arm 301, a crank arm connecting plate 302, and an output shaft crank arm 303. The transmission shaft crank arm 301 is arranged on the isolation transmission shaft 3 or the grounding transmission shaft 4. One end of the crank arm connecting plate 302 is axially connected to the transmission shaft crank arm 301, and the other end is axially connected to the output shaft crank arm 303. The output shaft crank arm 303 is arranged on the isolation output shaft 5 or the grounding output shaft 6. Such an arrangement can drive the rotation of the isolation transmission shaft 3 or the grounding transmission shaft 4 to drive the isolation output shaft 5 or the grounding output shaft 6 to rotate, thereby realizing opening and closing.

[0029] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A dual-electric single-clutch three-station isolation mechanism, comprising a front structure plate (1) and a middle structure plate (2) connected by pillars, characterized in that: An isolation transmission shaft (3), a grounding transmission shaft (4), an isolation output shaft (5), a grounding output shaft (6), and a mechanism output shaft (7) are axially connected between the front structure plate (1) and the middle structure plate (2); two gear reduction motors (8) are provided on the front structure plate (1) for driving the isolation transmission shaft (3) and the grounding transmission shaft (4) respectively; a gear box of the gear reduction motor (8) has an assembly back side (81); a positioning rod (9) is provided on the assembly back side (81); the front structure plate (1) has an assembly mating surface (11) and an assembly top surface (12); the assembly mating surface (11) A positioning socket (10) is provided in contact with the assembly back surface (81) and defines the final assembly position of the gear reduction motor (8) on the front structure plate (1); a locking component (20) having a preset shape and being retractable when squeezed is provided on the assembly top surface (12); a locking socket (91) is provided on the positioning rod (9) and is combined with the locking component (20) and prevents the positioning rod (9) from being separated from the positioning socket (10); and a connecting rod structure (30) is provided between the isolation transmission shaft (3) and the isolation output shaft (5), and between the grounding transmission shaft (4) and the grounding output shaft (6).

2. The dual electric single clutch three-station isolation mechanism according to claim 1, characterized in that: The locking assembly (20) comprises a connecting seat (201) and a locking rod (202); the connecting seat (201) is arranged on the assembly top surface (12) and has a first guide socket (201-a) defining a movement guide for the locking rod (202); and the assembly top surface (12) is provided with a second guide socket (12-a) that allows a portion of the locking rod (202) to enter the positioning socket (10) and is coaxial with the first guide socket (201-a).

3. The dual electric single clutch three-position isolation mechanism according to claim 2, characterized in that: An anti-dropout sheet (60) is provided on the locking rod (202), and the anti-dropout sheet (60) is located inside the connecting seat (201).

4. The dual electric single clutch three-position isolation mechanism according to claim 3, characterized in that: The locking rod (202) is provided with a spring (40), one end of the spring (40) abuts against the anti-slip sheet (60) and the other end abuts against the inner side surface of the connecting seat (201), and is compressed and deformed when the locking rod (202) moves in a direction of disengaging from the locking socket (91).

5. The dual electric single clutch three-position isolation mechanism according to claim 4, characterized in that: One end of the locking rod (202) used for entering the locking insertion hole (91) has a chamfered transition.

6. The dual electric single clutch three-station isolation mechanism according to claim 5, characterized in that: One end of the locking rod (202) exposed above the connecting seat (201) is provided with a gripping cap (50) having an outer diameter greater than the outer diameter of the locking rod (202).

7. The dual electric single clutch three-station isolation mechanism according to claim 1, characterized in that: The connecting rod structure (30) comprises a transmission shaft crank arm (301), a crank arm connecting plate (302), and an output shaft crank arm (303); the transmission shaft crank arm (301) is arranged on the isolated transmission shaft (3) or the grounded transmission shaft (4); one end of the crank arm connecting plate (302) is axially connected to the transmission shaft crank arm (301) and the other end is axially connected to the output shaft crank arm (303); the output shaft crank arm (303) is arranged on the isolated output shaft (5) or the grounded output shaft (6).

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