Mounting structure of external mounting type electric mechanism

Abstract

The utility model discloses a mounting structure of an externally-hung electric mechanism, which comprises a box body detachably mounted on an outer plate surface of a door plate of a circuit breaker chamber of a switch cabinet, a box door hinged to a door opening of the box body, and an externally-hung electric chassis truck mechanism mounted in the box body, the external hanging type electric chassis truck mechanism is composed of a driving motor, a tripping clutch, a manual operation shaft and a driving shaft sleeve, the tripping clutch is connected with a power output shaft of the driving motor, and the tripping clutch is provided with the manual operation shaft and the driving shaft sleeve. The linkage end of the manual operation shaft penetrates out of a circuit breaker operation hole in the box door and is used for inserting an operation handle to carry out manual shaking-in and shaking-out operation, and the driving shaft sleeve extends out of a bottom plate of the box body and is used for being connected with a chassis truck operation lead screw. During operation and maintenance, the externally-hung type electric chassis truck mechanism can be quickly replaced by dismounting the externally-hung type electric chassis truck mechanism without opening a door plate of a circuit breaker chamber of a switch cabinet, so that maintenance without power failure is realized, and the working efficiency of operation and maintenance is improved.

Description

Technical Field

[0001] This utility model belongs to the field of electric intelligent switch cabinet technology, and particularly relates to an installation structure for an external electric mechanism. Background Technology

[0002] The intelligent and low-carbon transformation of medium-voltage switchgear is an inevitable trend, with its core objectives being to improve grid reliability, adapt to the integration of new energy sources, reduce operation and maintenance costs, and meet the needs of industrial automation. With technological advancements, electrically powered intelligent switchgear will become key equipment in future power distribution networks and industrial power supply systems.

[0003] Currently, most electric intelligent switchgear circuit breakers and functional trolleys adopt a built-in electric chassis trolley solution. However, since the motor and transmission mechanism are installed inside the trolley chassis, maintenance and repair must be carried out on the chassis inside the cabinet. This requires disassembling the trolley and stopping the busbar for processing, making maintenance and repair troublesome.

[0004] Based on the drawbacks of the built-in electric chassis design, and considering the need to shorten bus stop time, maintain circuit breaker structure, and improve adaptability, there are already solutions on the market that separate the electric chassis motor from the chassis vehicle. Utility Model Content

[0005] The purpose of this utility model is to provide an installation structure for an external electric mechanism that is simple in structure, low in cost, convenient for maintenance and repair, and can improve the efficiency of operation and maintenance work.

[0006] The purpose of this utility model is achieved through the following technical measures: an installation structure for an external electric mechanism, characterized in that it includes a housing detachably mounted on the outer panel of the circuit breaker compartment door of a switchgear, a door hinged to the door of the housing, and an external electric chassis mechanism installed in the housing. The external electric chassis mechanism consists of a drive motor, a release clutch, a manual operating shaft, and a drive shaft sleeve. The release clutch is connected to the power output shaft of the drive motor. The release clutch has a manual operating shaft and a drive shaft sleeve. The linkage end of the manual operating shaft extends through the circuit breaker operating hole on the housing door for inserting an operating handle for manual cranking in and out. The drive shaft sleeve extends out of the bottom plate of the housing for connecting the chassis operating screw.

[0007] During operation and maintenance, the external electric chassis mechanism can be quickly replaced by disassembling this utility model without opening the switch cabinet circuit breaker compartment door, thus achieving uninterrupted power maintenance and improving the efficiency of operation and maintenance. Moreover, this utility model has a simple structure, low cost, and is convenient for maintenance and repair, making it suitable for widespread promotion and use.

[0008] This invention provides a baffle mechanism on the outer panel of the enclosure door at the circuit breaker operating hole. The baffle mechanism consists of a base fixed to the edge of the circuit breaker operating hole and an openable baffle. The base has a through hole corresponding to the circuit breaker operating hole. One end of the baffle is hinged to the base, and the other end can be fastened to the base and has a padlock hole for installing a padlock. A limit switch is provided inside the enclosure, electrically connected to the electric operating circuit of the drive motor. The opening or closing of the limit switch is linked to the opening and closing of the baffle and the enclosure door, and the limit switch can only be closed when the enclosure door and the baffle are closed simultaneously. This enables manual priority and avoids accidental operation during maintenance.

[0009] The edge of the door of the enclosure described in this utility model is provided with a protective bend, which can ensure that the protection level requirement of IP4X is met when the enclosure door is closed.

[0010] This utility model provides a rotary door lock on the box door. The bolt of the rotary door lock can rotate and engage with the inside of the box door to lock the box and the box door tightly closed. The rotary door lock is provided with a padlock hole for installing a padlock.

[0011] The box body of this utility model is rectangular, and a thick steel plate is welded to the inner plate of its bottom plate. The external electric chassis vehicle mechanism is mounted on a fixed bracket and can be detachably mounted on the bottom plate through the connecting plate of the fixed bracket.

[0012] The switchgear circuit breaker compartment door panel of this utility model is the front middle door of the switchgear circuit breaker compartment. A stud is welded to the middle of the inner plate of the base plate and a horizontal elongated hole is opened at the corner. The box body is installed on the front middle door of the switchgear circuit breaker compartment after the bolt passes through the horizontal elongated hole and the front middle door of the switchgear circuit breaker compartment for horizontal position adjustment. A vertical elongated hole is opened at the corner of the connecting plate. The vertical elongated hole allows the stud on the base plate to pass through and is positioned after vertical position adjustment to fix the external electric chassis vehicle mechanism to the base plate of the box body.

[0013] This utility model has an opening on the bottom plate of the box body for laying secondary cables for the external electric chassis vehicle mechanism.

[0014] Compared with the prior art, the present invention has the following significant advantages:

[0015] (1) During operation and maintenance, the external electric chassis vehicle mechanism can be quickly replaced by disassembling this utility model without opening the switch cabinet circuit breaker compartment door, thus achieving uninterrupted power maintenance and improving the efficiency of operation and maintenance.

[0016] (2) This utility model has a simple structure, low cost, and is easy to maintain and repair. It is suitable for widespread promotion and use, especially for the electric operation of medium-voltage switchgear, where the advantages of this utility model are more prominent. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is one of the three-dimensional structural schematic diagrams of this utility model (with the door and baffle closed);

[0019] Figure 2 This is the second three-dimensional structural schematic diagram of this utility model (box door opening);

[0020] Figure 3 This is a sectional view of the present invention (with the door and baffle closed);

[0021] Figure 4 This is a structural schematic diagram of the baffle mechanism of this utility model (baffle open);

[0022] Figure 5 This is a front view of the externally mounted electric chassis vehicle mechanism of this utility model;

[0023] Figure 6 This is a top view of the externally mounted electric chassis vehicle mechanism of this utility model;

[0024] Figure 7 This is a schematic diagram of the structure of this utility model installed on the front middle door of the circuit breaker compartment of the switch cabinet.

[0025] In the diagram: 1-box body, 2-box door, 220-baffle mechanism, 222-base, 221-baffle, 3-external electric chassis mechanism, 310-drive motor, 320-disengagement clutch, 330-manual operating shaft, 340-drive shaft sleeve, 4-limit switch, 5-mounting plate, 6-front and middle doors of the switch cabinet circuit breaker compartment, 7-circuit breaker operating hole, 8-through hole, 9-protective bend, 10-padlock hole, 11-thick steel plate, 12-base plate, 13-fixed bracket, 14-connecting plate, 15-horizontal elongated hole, 16-horizontal elongated hole, 17-opening, 18-stud. Detailed Implementation

[0026] like Figures 1 to 7As shown, the present invention discloses an installation structure for an external electric mechanism, comprising a housing 1 detachably mounted on the outer panel of the front middle door 6 of the switch cabinet circuit breaker compartment, a door 2 hinged to the door of the housing 1, and an external electric chassis mechanism 3 detachably mounted in the housing 1. The external electric chassis mechanism 3 consists of a drive motor 310, a release clutch 320, a manual operating shaft 330, and a drive shaft sleeve 340. The composition structure of the external electric chassis mechanism 3 is prior art, and its specific structure will not be described in detail here. The release clutch 320 is connected to the power output shaft of the drive motor 310, and the release clutch 320 has a manual operating shaft 330 and a drive shaft sleeve 340. The linkage end of the manual operating shaft 330 passes through the circuit breaker operating hole 7 on the door 2 for inserting an operating handle for manual cranking in and out. The drive shaft sleeve 340 extends out of the bottom plate 12 of the housing 1 for connecting the chassis operating screw and driving the chassis operating screw to rotate.

[0027] In this embodiment, the housing 1 is rectangular, and a 6mm thick steel plate 11 is welded to the inner surface of its base plate 12. The thick steel plate can improve the strength of the housing base plate. The external electric chassis mechanism 3 is mounted on the fixed bracket 13 and is detachably mounted on the base plate 12 through the connecting plate 14 of the fixed bracket 13. In this embodiment, the fixed bracket 13 consists of a Π-shaped frame and a connecting plate 14 located at the opening of the Π-shaped frame. The Π-shaped frame consists of three plates. The external electric chassis mechanism 3 is mounted in the Π-shaped frame. The drive shaft sleeve 340 and the manual operation shaft 330 of the external electric chassis mechanism 3 are coaxial. The drive shaft sleeve 340 extends out of the connecting plate 14 and passes through the base plate 12 of the housing 1. The linkage end of the manual operation shaft 330 extends out of one side plate of the Π-shaped frame and passes through the housing door 2.

[0028] A limit switch 4 is installed inside the housing 1. The limit switch 4 is mounted on the external electric chassis mechanism 3 via a mounting plate 5. The limit switch 4 is electrically connected to the electric operating circuit of the drive motor 310. A baffle mechanism 220 is provided on the outer panel of the housing door 2 at the circuit breaker operating hole 7. The baffle mechanism 220 consists of a base 222 fixed to the edge of the circuit breaker operating hole 7 and an openable baffle 221. After the housing door 2 is closed and locked, the closure of the baffle 221 can effectively prevent the manual operation of the external electric chassis mechanism and the linkage of the limit switch. The base 222 has a through hole 8 corresponding to the circuit breaker operating hole 7. One end of the baffle 221 is hinged to the base 222, and the other end is fastened to the base 222 and has a padlock hole for installing the installation padlock, which can realize the manual operation of the circuit breaker according to the program requirements. The opening or closing of the limit switch 4 is linked to the opening and closing of the baffle 221 and the door 2, and the limit switch 4 can only be closed when the door 2 and the baffle 221 are closed at the same time, so as to realize the manual priority function and avoid the problem of accidental operation during maintenance.

[0029] A protective bend 9 is provided at the edge of the door of the enclosure 1 to ensure that the protection level requirement of IP4X is met when the door is closed.

[0030] A rotary door lock 210 is provided on the door 1. The bolt of the rotary door lock 210 can be rotated and engaged inside the door of the box 1 to lock the box 1 and the door 2 tightly closed. The rotary door lock 210 is provided with a padlock hole 10 for installing a padlock.

[0031] Four M6×25 studs 18 are welded to the middle of the inner plate of the base plate 12, and horizontal elongated holes 15 are opened at the corners. The horizontal elongated holes are four 9×16 elongated holes. M8 bolts pass through the horizontal elongated holes 15 and the front middle door 6 of the switch cabinet circuit breaker compartment to adjust the horizontal position and fix the box 1 to the front middle door 6 of the switch cabinet circuit breaker compartment. The box 1 can be adjusted horizontally left and right. Four 7×12 vertical elongated holes 16 are opened at the corners of the connecting plate 14. The vertical elongated holes 16 allow the studs 18 on the base plate 12 to pass through and be adjusted vertically to fix the external electric chassis vehicle mechanism 3 to the base plate 12 of the box 1. The external electric chassis vehicle mechanism 3 can be adjusted vertically. Therefore, the external electric chassis mechanism 3 can be adjusted in four directions: up, down, left, and right. The drive shaft sleeve 340 of the external electric chassis mechanism 3 can be quickly aligned with the operating screw of the circuit breaker chassis, enabling rapid installation and debugging outside the cabinet.

[0032] An opening 17 is provided at the upper left corner of the bottom plate 12 of the housing 1 for laying the secondary cable of the external electric chassis vehicle mechanism 3.

[0033] The embodiments of this utility model are not limited thereto. Based on the above content of this utility model, and in accordance with the common technical knowledge and conventional means in the field, without departing from the basic technical idea of ​​this utility model, this utility model can also be modified, replaced or changed in various other forms, all of which fall within the scope of protection of this utility model.

Claims

1. An installation structure for an externally mounted electric mechanism, characterized in that: The device includes a housing that is detachably mounted on the outer panel of the circuit breaker compartment door of the switchgear, a door hinged to the door of the housing, and an externally mounted electric chassis mechanism installed in the housing. The externally mounted electric chassis mechanism consists of a drive motor, a trip clutch, a manual operating shaft, and a drive shaft sleeve. The trip clutch is connected to the power output shaft of the drive motor. The trip clutch has a manual operating shaft and a drive shaft sleeve. The linkage end of the manual operating shaft extends through the circuit breaker operating hole on the housing door for inserting an operating handle to perform manual cranking in and out operations. The drive shaft sleeve extends out of the housing bottom plate for connecting the chassis operating screw.

2. The mounting structure of the external electric mechanism according to claim 1, characterized in that: A baffle mechanism is provided on the outer panel of the enclosure door at the circuit breaker operating hole. The baffle mechanism consists of a base fixed to the edge of the circuit breaker operating hole and an openable baffle. The base has a through hole corresponding to the circuit breaker operating hole. One end of the baffle is hinged to the base, and the other end can be fastened to the base and has a padlock hole for installing a padlock. A limit switch is provided inside the enclosure. The limit switch is electrically connected to the electric operating circuit of the drive motor. The opening or closing of the limit switch is linked to the opening and closing of the baffle and the enclosure door, and the limit switch can only be closed when the enclosure door and the baffle are closed simultaneously.

3. The mounting structure of the external electric mechanism according to claim 2, characterized in that: A protective bend is provided on the edge of the doorway of the enclosure.

4. The mounting structure of the external electric mechanism according to claim 3, characterized in that: The cabinet door is equipped with a rotary door lock. The bolt of the rotary door lock can rotate and engage with the inside of the cabinet door to lock the cabinet and the cabinet door tightly closed. The rotary door lock is equipped with a padlock hole for installing a padlock.

5. The mounting structure of the external electric mechanism according to claim 4, characterized in that: The box body is rectangular, and a thick steel plate is welded to the inner plate of its bottom plate. The external electric chassis mechanism is mounted on a fixed bracket and can be detachably mounted on the bottom plate through the connecting plate of the fixed bracket.

6. The mounting structure of the external electric mechanism according to claim 5, characterized in that: The switchgear circuit breaker compartment door is the front middle door of the switchgear circuit breaker compartment. A stud is welded to the middle of the inner plate of the base plate and a horizontal elongated hole is opened at the corner. The box is installed on the front middle door of the switchgear circuit breaker compartment by adjusting the horizontal position by bolts passing through the horizontal elongated hole and the front middle door of the switchgear circuit breaker compartment. A vertical elongated hole is opened at the corner of the connecting plate. The stud on the base plate passes through the vertical elongated hole and is positioned by adjusting the vertical position to fix the external electric chassis vehicle mechanism to the base plate of the box.

7. The mounting structure of the external electric mechanism according to claim 6, characterized in that: The bottom plate of the housing has openings for laying secondary cables for the external electric chassis vehicle mechanism.

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