CN216353926U

CN216353926U - Transmission device of isolating switch

Info

Publication number: CN216353926U
Application number: CN202122964846.5U
Authority: CN
Inventors: 侯传虎; 赵玉振; 辛子培; 高振金; 丛洪宝
Original assignee: Shandong Taikai Isolating Switch Co ltd
Current assignee: Shandong Taikai Isolating Switch Co ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-04-19
Anticipated expiration: 2031-11-30

Abstract

The utility model discloses a transmission device of an isolating switch, which comprises a vertical opening type isolating switch and a support frame, and further comprises a T-shaped right angle conversion device, a driving device and a connecting rod, wherein the vertical opening type isolating switch is arranged on the support frame, the vertical opening type isolating switch comprises an insulating swing arm and a conductive switch knife arm for switching on and off, the connecting rod transmits horizontal rotation power to the T-shaped right angle conversion device through the driving device, and the T-shaped right angle conversion device converts the horizontal rotation power into power for driving the insulating swing arm to vertically move. The T-shaped right angle conversion device has the advantages of simple structure, reliable transmission, convenient installation, flexible rotation and convenient debugging, and is convenient to install in cooperation with the existing isolating switch rotating shaft; the connecting rod transmits power in a horizontal rotating mode, the gravity of the connecting rod can not influence the switch transmission, the whole transmission system is a rotating link, and the conditions of interference and clamping stagnation of a crank arm and other parts in the transmission system are avoided.

Description

Transmission device of isolating switch

Technical Field

The utility model relates to the technical field of isolating switch equipment, in particular to a transmission device of an isolating switch.

Background

The existing vertical open type isolating switch mainly adopts the vertical swing of a crank arm to drive conduction to realize switch opening and closing, and the common modes are mainly used in two ways, and are introduced as follows:

the isolating switch is provided with a special side transmission driving device, and the connecting rod drives the isolating switch connecting lever to swing up and down by utilizing the vertical swing of the connecting lever of the driving device, so that the conductive opening and closing of the switch are realized.

The disadvantages of this mounting method are:

1. special driving devices need to be put into operation, and research and development cost of enterprises is increased.

2. The drive means needs to have a torque large enough to counteract the weight of a part of the connecting rod itself. If the switch is installed at too high a height, the connecting rod is selected to have larger specification and size, and great challenges are caused to the mechanism.

3. The lengths of the crank arm of the driving device, the crank arm of the switch and the connecting rod are required to be matched and debugged during field installation, the field installation and debugging are complex, and the workload is large.

4. The switch crank arm swings up and down to have a large moving range, and is easy to collide with a switch base and a bracket part, so that a mechanism or a switch is clamped or damaged, and finally the switch cannot be separated or combined, so that accidents are caused. Such power supply accidents occur in a certain line section of the metro of the Chengdu, which leads to the shutdown of the train and the whole line investigation.

And secondly, a conventional driving device for top surface transmission is equipped, and the horizontal transmission is converted into vertical transmission by utilizing a mechanical transmission device.

The disadvantages of this mounting method are:

1. the mechanical transmission device has high part processing precision, large processing difficulty and large friction force during normal operation. The loss is more.

2. The torque output of the mechanism is large, one part needs to offset the friction force of the transmission device, the other part needs to offset the gravity of the connecting rod, so the installation height of the switch is not too high, and the specification of the connecting rod is not too large.

3. The lengths of the crank arm and the connecting rod need to be matched and debugged during field installation, and the workload of field installation and debugging is large.

4. The installation mode of the switch part of the installation mode is consistent with the situation introduced above, so the switch crank arm swings up and down to have a larger moving range, and the switch crank arm is easy to collide with the switch base and the bracket part, so that the mechanism or the switch is clamped or damaged in an opening and closing mode, and finally the switch cannot be opened and closed, thereby causing accidents.

Therefore, we propose a transmission for a disconnector to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a transmission device of an isolating switch, which has a simple structure and is convenient to debug.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows: the utility model provides an isolator's transmission, includes perpendicular open-type isolator and support frame, still includes T type right angle conversion equipment, drive arrangement and connecting rod, perpendicular open-type isolator installs on the support frame, and perpendicular open-type isolator includes insulating swing arm and the electrically conductive knife arm that is used for switching on and off, and insulating swing arm upper end is articulated with electrically conductive knife arm middle part activity, the connecting rod passes through drive arrangement to T type right angle conversion equipment transmission horizontal rotation power, and T type right angle conversion equipment converts horizontal rotation power into the power of the vertical motion of drive insulating swing arm.

Preferably, the middle part sets up the trompil base on the support frame, and movable mounting has the pivot in the trompil base, and pivot fixed surface installs the turning arm, and the turning arm is articulated with insulating swing arm lower extreme activity.

Preferably, T type right angle conversion equipment is including sealing box, passive jack-post and initiative jack-post, and passive jack-post movable mounting is inside the sealing box, and it supports through the bearing, initiative jack-post lower extreme and connecting rod fixed connection, initiative jack-post upper end activity are inserted and are located the sealing box, and initiative jack-post upper end fixed mounting has initiative conical gear, fixed mounting has passive conical gear on the passive jack-post, passive conical gear and the meshing of initiative conical gear, passive jack-post one end and pivot one end fixed connection.

Preferably, the driving device comprises a driving motor and a speed reducer which are connected with each other, and an output shaft of the speed reducer is fixedly connected with one end of the connecting rod through a clamp.

Preferably, the vertical open-type disconnector comprises a movable side insulating support and a fixed side insulating support which are fixedly arranged on a support frame, and one end of the conductive switch knife arm is movably hinged to the upper part of the movable side insulating support; when the other end of the conductive switch knife arm is contacted with the contact at the upper part of the static side insulating support, the state of closing the isolating switch is set.

Preferably, the gear transmission ratio of the driving conical gear to the driven conical gear is 1: 1.

Compared with the prior art, the utility model has the advantages that:

the T-shaped right angle conversion device adopts a finished product device, is provided with a matched protective shell, is suitable for being matched with indoor and outdoor isolating switches for use, has the advantages of simple structure, reliable transmission, convenient installation, flexible rotation and convenient debugging, and is also convenient to be matched with the rotating shaft of the existing isolating switch for installation;

the connecting rod transmits power in a horizontal rotating mode, the transmission of the switch cannot be influenced by self gravity, and the on-site installation is convenient and rapid.

The whole transmission system of the isolating switch is a rotating link, so that the conditions of interference and clamping stagnation of a crank arm and other parts in the transmission system are avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a block diagram of the transmission of a disconnector according to the utility model;

FIG. 2 is a front view of the transmission of a disconnector according to the utility model;

fig. 3 is a cross-sectional view of the T-type right angle conversion device of the present invention.

In the figure: the device comprises a vertical open type isolating switch 1, a movable side insulating support 11, a static side insulating support 12, a conductive switch knife arm 13, an insulating swing arm 14, a support frame 2, a rotating shaft 21, a crank arm 22, a 3T-shaped right-angle conversion device, a closed box 31, a driven shaft column 32, a driving shaft column 33, a driving bevel gear 34, a driven bevel gear 35, a driving device 4, a connecting rod 5 and a clamp 6.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention will be more clearly and clearly defined.

Referring to fig. 1 and 2, the utility model provides a transmission device of an isolating switch, which comprises a vertical open type isolating switch 1 and a support frame 2, and further comprises a T-shaped right angle conversion device 3, a driving device 4 and a connecting rod 5, wherein the vertical open type isolating switch 1 is installed on the support frame 2, the vertical open type isolating switch 1 comprises an insulating swing arm 14 and a conductive knife arm 13 for switching on and off, the upper end of the insulating swing arm 14 is movably hinged with the middle part of the conductive knife arm 13, the connecting rod 5 transmits horizontal rotation power to the T-shaped right angle conversion device 3 through the driving device 4, and the T-shaped right angle conversion device 3 converts the horizontal rotation power into power for driving the insulating swing arm 14 to vertically move.

In this embodiment, the middle part sets up the trompil base on support frame 2, and movable mounting has pivot 21 in the trompil base, and pivot 21 fixed surface installs turning arm 22, and turning arm 22 is articulated with 14 lower extremes of insulating swing arm activity.

Referring to fig. 3, in this embodiment, the T-shaped right angle conversion device 3 includes a closed box 31, a passive shaft column 32 and an active shaft column 33, the passive shaft column 32 is movably installed inside the closed box 31 and supported by a bearing, a lower end of the active shaft column 33 is fixedly connected to the connecting rod 5, an upper end of the active shaft column 33 is movably inserted into the closed box 31, the closed box 31 can prevent rainwater from corroding the inside to protect the inside, an upper end of the active shaft column 33 is fixedly installed with an active conical gear 34, the passive shaft column 32 is fixedly installed with a passive conical gear 35, the passive conical gear 35 is engaged with the active conical gear 34, one end of the passive shaft column 32 is fixedly connected to one end of the rotating shaft 21, a conventional vertically-opened isolating switch is installed in cooperation with the T-shaped right angle conversion device 3, a debugging link of the switch is directly completed in a factory, and the field installation does not need debugging, a large amount of labor cost and installation time can be saved.

In this embodiment, the driving device 4 includes a driving motor and a speed reducer that are connected to each other, the speed reducer is a speed reducer, an output shaft of the speed reducer is fixedly connected to one end of the connecting rod 5 through the clasping clamp 6, the driving motor is a servo motor, and the driving motor drives the speed reducer by using the servo motor, so that controllability is improved.

In this embodiment, the vertically-opened disconnecting switch 1 includes a moving-side insulating support 11 and a static-side insulating support 12 which are fixedly mounted on a support frame 2, and one end of a conductive switch arm 13 is movably hinged to the upper part of the moving-side insulating support 11; when the other end of the conductive knife arm 13 contacts with the contact on the upper part of the stationary-side insulating support 12, the switch-on state of the disconnector is shown in fig. 2, which is prior art and will not be described in detail herein.

In this embodiment, the gear transmission ratio of the driving bevel gear 34 to the driven bevel gear 35 is 1:1, so that the driving device 4 can precisely control the rotation angle of the rotating shaft 21, and the conductive blade arm 13 is more controllable.

The working principle is as follows: the connecting rod 5 is driven to rotate by the driving device 4, the connecting rod 5 drives the driving shaft column 33 to rotate, the driving shaft column 33 drives the driven shaft column 32 to rotate through the driving bevel gear 34, so that the rotating shaft 21 rotates, the rotating shaft 21 can drive the insulating swing arm 14 to move up and down through the crank arm 22 of the rotating shaft 21, and the conductive switch knife arm 13 is made to move vertically to realize the switch function.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, various changes or modifications may be made by the patentees within the scope of the appended claims, and within the scope of the utility model, as long as they do not exceed the scope of the utility model described in the claims.

Claims

1. The utility model provides a isolator's transmission, includes perpendicular open-type isolator and support frame, its characterized in that: the vertical opening type isolating switch is installed on the supporting frame and comprises an insulating swing arm and a conductive knife arm used for opening and closing, the upper end of the insulating swing arm is movably hinged to the middle of the conductive knife arm, the connecting rod transmits horizontal rotation power to the T-shaped right angle conversion device through the driving device, and the T-shaped right angle conversion device is used for converting the horizontal rotation power into power for driving the insulating swing arm to move vertically.

2. The transmission of a disconnector according to claim 1, characterized in that: the middle part sets up the trompil base on the support frame, and movable mounting has the pivot in the trompil base, and pivot fixed surface installs the turning arm, and the turning arm is articulated with insulating swing arm lower extreme activity.

3. A disconnector transmission according to claim 2, characterized in that: t type right angle conversion equipment is including sealing box, passive jack-post and initiative jack-post, and passive jack-post movable mounting is inside the sealing box, and it supports through the bearing, initiative jack-post lower extreme and connecting rod fixed connection, initiative jack-post upper end activity are inserted and are located the sealing box, and initiative jack-post upper end fixed mounting has initiative conical gear, fixed mounting has passive conical gear on the passive jack-post, passive conical gear and the meshing of initiative conical gear, passive jack-post one end and pivot one end fixed connection.

4. The transmission of a disconnector according to claim 1, characterized in that: the driving device comprises a driving motor and a speed reducer which are connected with each other, and an output shaft of the speed reducer is fixedly connected with one end of the connecting rod through the holding clamp.

5. The transmission of a disconnector according to claim 1, characterized in that: the vertical open type isolating switch comprises a movable side insulating support and a static side insulating support which are fixedly arranged on a supporting frame, and one end of the conductive switch knife arm is movably hinged to the upper part of the movable side insulating support; when the other end of the conductive switch knife arm is contacted with the contact at the upper part of the static side insulating support, the state of closing the isolating switch is set.

6. A disconnector transmission according to claim 3, characterized in that: the gear transmission ratio of the driving conical gear to the driven conical gear is 1: 1.