CN114976965B - Lifting circuit breaker trolley - Google Patents
Lifting circuit breaker trolleyInfo
- Publication number
- CN114976965B CN114976965B CN202210711472.2A CN202210711472A CN114976965B CN 114976965 B CN114976965 B CN 114976965B CN 202210711472 A CN202210711472 A CN 202210711472A CN 114976965 B CN114976965 B CN 114976965B
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- China
- Prior art keywords
- rod
- fixedly connected
- conducting rod
- cylinder body
- gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/02—Details
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/167—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal truck type
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
本发明提供升降式断路器手车，属于变电设备检修技术领域，该升降式断路器手车，包括主架；底板，底板固定连接于主架的上端，底板的上端开设有矩形槽；以及升降机构，升降机构包括转动杆、第三半齿轮、齿柱、安装板和断路器，转动杆转动连接于底板的侧端，第三半齿轮固定连接于转动杆的圆周表面，齿柱滑动连接于矩形槽内，齿柱和第三半齿轮相啮合，安装板固定连接于齿柱的上端，通过设置有的升降机构从而使得当断路器在进行连接以后能更好地通过转动杆的转动带着第三半齿轮和齿柱进行啮合，从而使得断路器能更好地进行升降功能，从而使得当工作人员在进行使用时能更好地保障其使用效果。
The present invention provides a lifting circuit breaker trolley, which belongs to the technical field of substation equipment maintenance. The lifting circuit breaker trolley includes a main frame; a base plate, which is fixedly connected to the upper end of the main frame and has a rectangular groove on the upper end of the base plate; and a lifting mechanism, which includes a rotating rod, a third half gear, a gear column, a mounting plate and a circuit breaker. The rotating rod is rotatably connected to the side end of the base plate, the third half gear is fixedly connected to the circumferential surface of the rotating rod, the gear column is slidably connected in the rectangular groove, the gear column and the third half gear are meshed, and the mounting plate is fixedly connected to the upper end of the gear column. By providing the lifting mechanism, after the circuit breaker is connected, the third half gear and the gear column can be better meshed by the rotation of the rotating rod, so that the circuit breaker can better perform the lifting function, so that the staff can better ensure its use effect when using it.
Description
Technical Field
The invention belongs to the technical field of overhauling of power transformation equipment, and particularly relates to a lifting circuit breaker handcart.
Background
A circuit breaker refers to a switching device capable of closing, carrying and opening a current under normal circuit conditions and closing, carrying and opening a current under abnormal circuit conditions within a prescribed time. The circuit breaker is divided into a high-voltage circuit breaker and a low-voltage circuit breaker according to the application range, and the division of a high-voltage boundary line and a low-voltage boundary line is fuzzy, and is generally called as a high-voltage electrical appliance with the voltage of more than 3 kV. The circuit breaker can be used for distributing electric energy, starting the asynchronous motor infrequently, protecting a power line, the motor and the like, and automatically cutting off the circuit when serious overload or short circuit, undervoltage and other faults occur, and the functions of the circuit breaker are equivalent to the combination of a fuse type switch, an over-under-heating relay and the like. And the parts are not required to be changed after breaking the fault current. A wide range of applications have been achieved. In the process of electricity generation, transportation and use, power distribution is an extremely important link. The distribution system comprises a transformer and various high-low voltage electrical equipment, and a low-voltage circuit breaker is an electrical appliance with wide application range.
In the prior art, the electric energy is often required to be distributed through the circuit breaker in the maintenance and installation processes of the high-low voltage circuit, but the circuit breaker cannot be moved and lifted better in the prior art when the circuit breaker is used, so that the maintenance time is long, and the maintenance is inconvenient for workers to install and maintain.
Disclosure of Invention
The invention aims to provide a lifting type circuit breaker handcart, and aims to solve the problems that when a circuit breaker in the prior art is used, the circuit breaker cannot be moved and lifted better, so that maintenance time is long, and workers are inconvenient to install and maintain.
In order to achieve the above purpose, the present invention provides the following technical solutions:
Lifting circuit breaker handcart includes:
A main frame;
The bottom plate is fixedly connected to the upper end of the main frame, and a rectangular groove is formed in the upper end of the bottom plate;
And
The lifting mechanism comprises a rotating rod, a third half gear, a tooth column, a mounting plate and a lifting seat, wherein the rotating rod is rotationally connected to the side end of the bottom plate, the third half gear is fixedly connected to the circumferential surface of the rotating rod, the tooth column is slidingly connected in the rectangular groove, the tooth column is meshed with the third half gear, the mounting plate is fixedly connected to the upper end of the tooth column, and the lifting seat is connected to the upper end of the mounting plate through a bolt thread.
As a preferable scheme of the invention, the circumference surface of the rotating rod is fixedly connected with a first gear, the side end of the bottom plate is rotatably connected with a second gear, and the side end of the second gear is fixedly connected with a rotating handle.
As a preferable scheme of the invention, the side end of the rotating rod is fixedly connected with a ratchet wheel, the side end of the bottom plate is connected with a shell through a bolt thread, the side end of the shell is rotationally connected with a ratchet wheel through a rotating shaft, and the ratchet wheel is meshed with the ratchet wheel intermittently.
As a preferable scheme of the invention, the upper end of the main frame is fixedly connected with a pulling rod, the lower end of the main frame is fixedly connected with a bottom plate, and four corners of the lower end of the bottom plate are fixedly connected with universal wheels.
As a preferable scheme of the invention, the side end of the lifting seat is fixedly connected with an insulating cylinder, and the side end of the insulating cylinder is fixedly connected with a contact arm.
As a preferable scheme of the invention, the lower end of the tooth post is fixedly connected with a rectangular plate, and the circumferential surface of the pulling rod is provided with a rubber ring.
The electric power transmission device comprises an insulating cylinder, an upper fixing sleeve sleeved at the upper end of the insulating cylinder, a lower fixing sleeve sleeved at the lower end of the outer cylinder, an upper conducting rod vertically arranged in the outer cylinder and fixed on the upper fixing sleeve, and a lower conducting rod vertically arranged in the outer cylinder and in threaded fit with the lower fixing sleeve, wherein the lower conducting rod is always electrified, the upper conducting rod is opposite to the end of the lower conducting rod, an upper contact arm penetrates into the insulating cylinder from the upper side surface of the insulating cylinder to be fixedly connected with the upper conducting rod and electrically contacted with the upper conducting rod, a lower contact arm penetrates into the insulating cylinder from the lower side surface of the insulating cylinder to be slidably sleeved with the lower conducting rod and electrically contacted with the lower conducting rod, an insulating inner cylinder body is arranged on the upper outer sliding sleeve of the lower conducting rod, electrorheological fluid is filled in the inner cylinder, a plurality of linkage pieces are outwards divergently arranged on the outer circumference of the upper end of the lower conducting rod, a plurality of electrode driving pieces are arranged on the inner wall of the inner cylinder, the electrode driving pieces are grounded through a circuit capable of being connected with the inner cylinder, the lower conducting rod penetrates into the insulating cylinder in an upper sealing mode, the insulating cylinder penetrates into the insulating cylinder from the lower conducting rod to the insulating cylinder from the lower side surface to the insulating cylinder, the insulating cylinder to the insulating cylinder and penetrates into the insulating cylinder to the lower conducting rod to the insulating cylinder to the lower insulating cylinder, and the insulating cylinder to the insulating cylinder and the electrode driving rod is in the outer cylinder and the insulating cylinder and the electrode driving sheet.
As a preferable scheme of the invention, the upper part of the inner cylinder body is provided with a liquid pipe, the liquid pipe is communicated with the outside of the outer cylinder body, and electrorheological liquid is pumped into the inner cylinder body through the liquid pipe.
As a preferable scheme of the invention, the breaking working method of the insulating cylinder comprises the following steps:
① When power is required to be cut off, the electrode driving piece is grounded and communicated, an electric field is formed between the lower conducting rod and the electrode driving piece, and the electrorheological fluid is converted into a solid state under the action of the electric field;
② The servo motor drives the spur gear to rotate, the spur gear drives the inner cylinder body to rotate through the outer tooth belt, and the inner cylinder body drives the lower conducting rod to rotate through the electrode driving sheet, the solid-state current transformer and the linkage sheet;
③ When the lower conducting rod moves downwards beyond a certain distance, the grounding circuit of the electrode driving piece is disconnected, the electrorheological fluid loses the action of an electric field and is converted into liquid, and the top of the lower conducting rod is immersed to extinguish arc;
④ If the electrorheological fluid is selected to be extracted, the electrorheological fluid needs to be pumped again after the handcart is pushed back, then the grounding of the electrode driving sheet is communicated, an electric field is formed between the lower conducting rod and the electrode driving sheet again, and the electrorheological fluid is converted into a solid state again under the action of the electric field;
⑤ The servo motor drives the spur gear to rotate reversely, and the spur gear drives the inner cylinder body to rotate through the outer tooth strip;
⑥ The grounding circuit of the electrode driving piece is disconnected again, and the electrorheological fluid can be extracted again.
Compared with the prior art, the invention has the beneficial effects that:
1. in this scheme, make through the elevating system who sets up can bring third half gear and tooth post to mesh through the rotation of dwang better after the lift seat is connected to make the lift seat can carry out the lift function better, thereby make when the staff is using, can ensure its result of use better.
2. In this scheme, thereby through the universal wheel that is provided with the pulling pole and main frame lower extreme fixedly connected with in the upper end of main frame so that can carry out the position through the universal wheel with the device through the pulling pole better when needs carry out the position movement with the lifting seat, thereby make the lifting seat be convenient for the position movement function better when using.
3. In this scheme, the structure seal that opens circuit sets up in the insulating cylinder, and the conducting rod all does not expose, and the switching process of break-make way adopts and indirectly goes on, and the structure integration that opens circuit is strong, and modularization installation and exercise break-make circuit function not only easy to assemble or change, can effectual guarantee break-make circuit process's security moreover.
4. In the scheme, the solid-liquid conversion characteristic of electrorheological fluid is utilized, the dual functions of a transmission medium and auxiliary arc extinction are realized, the transmission mechanism is simplified, the arc extinction effect is good, the manufacturing cost is low, fault damage is not easy to occur, the service life is long, the electrorheological fluid is converted into a solid state under the action of an electric field and is used as the transmission medium to drive the lower conducting rod to rotate, so that the electrorheological fluid can be vertically moved to realize the electric on-off with the upper conducting rod, the upper conducting rod and the lower conducting rod can be converted into a liquid state when disconnected, the upper end face of the lower conducting rod is submerged by the height after the lower conducting rod is downwards moved, the liquid arc extinction is realized, compared with the vacuum arc extinction, the arc extinction effect is stronger, meanwhile, the heat absorption is also realized, the lower conducting rod is enabled to be cooled, the aging condition caused by the arc is reduced, and the phenomenon that the metal evaporation of the lower conducting rod is caused under high temperature by the arc is reduced, so that the service life is longer. And compare vacuum circuit breaker, the manufacturing cost of device is showing and is reducing, and need not to worry vacuum circuit breaker's damage gas leakage problem, can adapt to adverse circumstances, and is equivalent to realizing the oil blanket through insulating oil after adopting this mode to break circuit, can avoid the adverse effect of conditions such as humid air, improves the safety guarantee nature, avoids the condition that breaks down because of humidity takes place.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a perspective view of a first view of the present invention;
FIG. 2 is a second perspective view of the present invention;
FIG. 3 is a perspective exploded view of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3 in accordance with the present invention;
Fig. 5 is a schematic view of the insulation cylinder breaking structure of the present invention in a connected state;
fig. 6 is a schematic view of the insulation cylinder breaking structure of the present invention in an open state.
In the figure, 1, a main frame; 2, a bottom plate, 3, universal wheels, 4, a pulling rod, 5, a rectangular groove, 6, a rotating rod, 7, a third half gear, 8, a tooth post, 9, a first gear, 10, a second gear, 11, a rotating handle, 12, a mounting plate, 13, a shell, 14, a ratchet wheel, 15, a ratchet, 16, a lifting seat, 17, an insulating cylinder, 171, an outer cylinder, 172, an upper fixed sleeve, 173, a lower fixed sleeve, 174, an upper conducting rod, 175, a lower conducting rod, 176, an inner cylinder, 177, electrorheological fluid, 178, a straight gear, 179, a servo motor, 180, a linkage piece, 181, an electrode driving piece, 18 and a contact arm.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and include, for example, "connected to," whether fixedly connected to, detachably connected to, or integrally connected to, mechanically connected to, electrically connected to, directly connected to, indirectly connected to, and in communication with each other via an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1
Referring to fig. 1-4, the present invention provides the following technical solutions:
Lifting circuit breaker handcart includes:
a main frame 1;
the bottom plate 2 is fixedly connected to the upper end of the main frame 1, and a rectangular groove 5 is formed in the upper end of the bottom plate 2;
And
The lifting mechanism comprises a rotating rod 6, a third half gear 7, a tooth column 8, a mounting plate 12 and a lifting seat 16, wherein the rotating rod 6 is rotationally connected to the side end of the bottom plate 2, the third half gear 7 is fixedly connected to the circumferential surface of the rotating rod 6, the tooth column 8 is slidingly connected in the rectangular groove 5, the tooth column 8 is meshed with the third half gear 7, the mounting plate 12 is fixedly connected to the upper end of the tooth column 8, and the lifting seat 16 is connected to the upper end of the mounting plate 12 through bolt threads.
In the specific embodiment of the invention, the main frame 1 plays a role in fixing the bottom plate 2 and connecting the universal wheels 3, the bottom plate 2 plays a role in better placing the tooth post 8 after the rectangular groove 5 is formed at the upper end of the bottom plate 2, the lifting seat 16 can be better meshed with the tooth post 8 through the rotation of the rotating rod 6 after the lifting seat 16 is connected, so that the lifting seat 16 can better perform a lifting function, and thus the use effect of the working personnel can be better ensured when the working personnel are in use, wherein the rotating rod 6 plays a role in realizing the fixing of the third half gear 7 and the intermittent meshing of the tooth post 8, the tooth post 8 plays a role in better ensuring the connection of the lifting seat 16 and the mounting plate 12 after the mounting plate 12 is fixed, and the lifting seat 16, the third half gear 7 and the tooth post 8 are respectively provided with two and the same rotation directions of the two third half gears 7, and how the lifting seat 16 is particularly used and the working personnel can use the working personnel are better.
Referring to fig. 3 and 4, a first gear 9 is fixedly connected to the circumferential surface of the rotating rod 6, a second gear 10 is rotatably connected to the side end of the bottom plate 2, and a rotating handle 11 is fixedly connected to the side end of the second gear 10.
In the embodiment, the first gear 9 is meshed with the second gear 10, the second gear 10 is better driven to rotate by rotating the handle 11 when the position of the tooth post 8 needs to slide, so that the second gear 10 and the first gear 9 are better rotated, and the first gear 9 is provided with two gears.
Referring to fig. 3 specifically, a ratchet 14 is fixedly connected to a side end of the rotating rod 6, a casing 13 is connected to a side end of the bottom plate 2 through a bolt thread, a ratchet 15 is connected to a side end of the casing 13 through a rotating shaft in a rotating manner, and the ratchet 15 and the ratchet 14 are engaged intermittently.
In this embodiment, the ratchet wheel 14 is fixed to the rotating rod 6, and the housing 13 is intermittently engaged with the ratchet wheel 14, so as to ensure that the rotating rod 6 is better defined after the rotating handle 11 stops rotating, wherein how the ratchet wheel 14 and the ratchet 15 are engaged and the releasing of the limit is achieved will not be described in detail in the present specification.
Referring to fig. 1 and 3 specifically, a pull rod 4 is fixedly connected to the upper end of a main frame 1, a bottom plate 2 is fixedly connected to the lower end of the main frame 1, and universal wheels 3 are fixedly connected to four corners of the lower end of the bottom plate 2.
In the embodiment, the pulling rod 4 is used for connecting the main frame 1, so that the lifting seat 16 can be pushed by the pulling rod 4 better when the lifting seat needs to be moved, and the universal wheel 3 is used for guaranteeing the movement function of the device better when the device needs to be moved.
Referring to fig. 1-3, an insulating cylinder 17 is fixedly connected to a side end of the lifting seat 16, and a contact arm 18 is fixedly connected to a side end of the insulating cylinder 17.
In this embodiment, the insulating cylinder 17 performs a function of connecting the contact arm 18, and the contact arm 18 performs a function of connecting with an external component, wherein how the insulating cylinder 17 and the contact arm 18 are connected and the use effect thereof are specific to those skilled in the art are not described in the art.
Referring to fig. 3 specifically, a rectangular plate is fixedly connected to the lower end of the tooth post 8, and a rubber ring is disposed on the circumferential surface of the pulling rod 4.
In the embodiment, the rectangular plate is fixed at the lower end of the tooth column 8, so that the tooth column 8 can better ensure the structural stability of the tooth column 8 when being in matched engagement with the third half gear 7, and the rubber ring arranged on the surface of the pulling rod 4 can better promote the use comfort of a worker when the worker is in use.
The lifting seat 16 is connected with the mounting plate 12 through bolts, when the lifting seat 16 is required to be lifted, the rotary handle 11 can be rotated, the second gear 10 is meshed with the first gear 9 after the rotary handle 11 rotates, the rotary rod 6 carries the third half gear 7 to rotate, the third half gear 7 is meshed with the tooth column 8, the tooth column 8 is lifted, the mounting plate 12 enables the fixed lifting seat 16 to complete lifting, when the rotary handle 11 rotates, the ratchet wheel 14 is intermittently meshed with the ratchet teeth 15, so that the rotary rod 6 is fixed after the rotary handle 11 is used, the ratchet teeth 15 are pulled to separate the ratchet wheel 14 from the ratchet teeth 15 when the rotary handle 11 is required to be lifted, the rotary handle 11 can reversely rotate to lower the lifting seat 16, the pull rod 4 can be pulled or pushed to move through the universal wheel 3 fixedly connected with the lower end of the main frame 1, the lifting mechanism is arranged to enable the lifting seat 16 to be lifted better through the rotary rod 6 after the lifting seat is connected, the ratchet wheel 14 is meshed with the third half gear 8, and accordingly the lifting seat 16 can be better guaranteed to be lifted when the lifting seat 16 is used, and a user can better work can be guaranteed.
Further, referring to fig. 5 and 6, in this embodiment, the circuit breaking mechanism of the insulating cylinder 17 is redesigned, specifically, the insulating cylinder 17 includes an insulating outer cylinder 171, an upper fixed sleeve 172 sleeved at the upper end of the outer cylinder 171, a lower fixed sleeve 173 sleeved at the lower end of the outer cylinder 171, an upper conductive rod 174 vertically arranged in the outer cylinder 171 and fixed on the upper fixed sleeve 172, a lower conductive rod 175 vertically arranged in the outer cylinder 171 and in threaded fit with the lower fixed sleeve 173, the lower conductive rod 175 is always electrified, the ends of the upper conductive rod 174 and the lower conductive rod 175 are opposite, the upper contact arm 18 penetrates into the insulating cylinder 17 from the upper side surface of the insulating cylinder 17 to be fixedly connected with and electrically contacted with the upper conductive rod 174, the lower contact arm 18 penetrates into the insulating cylinder 17 from the lower side surface of the insulating cylinder 17 to be slidably sleeved with and electrically contacted with the lower conductive rod 175, an insulating inner cylinder 176 is vertically sleeved at the upper outer side of the lower conductive rod 175, an electric rheological fluid 177 is filled in the inner cylinder 176, the upper end of the lower conductive rod 175 is vertically arranged to be circumferentially and externally divergently provided with a coupling rod 180, the upper inner cylinder 176 is vertically arranged at the outer end of the inner cylinder 176, a plurality of driving gears and a plurality of driving gears 178 are axially meshed with the outer cylinder 176 and a plurality of driving gears 178 are axially arranged at the outer cylinder 176 correspondingly.
Wherein, a liquid pipe is arranged at the upper part of the inner cylinder 176, the liquid pipe is communicated with the outside of the outer cylinder 171, and the electrorheological liquid 177 is pumped into the inner cylinder 176 through the liquid pipe.
The working method of the circuit breaking mechanism comprises the following steps:
① When power is required to be cut off, the electrode driving piece 181 is grounded and communicated, an electric field is formed between the lower conductive rod 175 and the electrode driving piece 181, and the electrorheological fluid 177 is converted into a solid state under the action of the electric field;
② The servo motor 179 drives the spur gear 178 to rotate, the spur gear 178 drives the inner cylinder 176 to rotate through the external tooth belt, the inner cylinder 176 drives the lower conducting rod 175 to rotate through the electrode driving sheet 181, the solid-state electrorheological fluid 177 and the linkage sheet 180, and the lower conducting rod 175 moves downwards under the action of the screw thread due to the threaded fit of the lower conducting rod 175 and the fixed sleeve 173, so that the lower conducting rod 175 is released from touching with the upper conducting rod 174;
③ When the lower conductive rod 175 moves down more than a certain distance, the grounding line of the electrode driving plate 181 is disconnected, the electrorheological fluid 177 loses the effect of an electric field and is converted into a liquid state, and the top of the lower conductive rod 175 is immersed to extinguish arc;
④ If the electrorheological fluid 177 is selected to be extracted, the electrorheological fluid 177 needs to be pumped again after the handcart is pushed back, then the electrode driving piece 181 is grounded and communicated, an electric field is formed between the lower conducting rod 175 and the electrode driving piece 181 again, and the electrorheological fluid 177 is converted into a solid state again under the action of the electric field;
⑤ The servo motor 179 drives the spur gear 178 to rotate reversely, and the spur gear 178 drives the inner cylinder 176 to rotate through the external teeth, and the inner cylinder 176 drives the lower conductive rod 175 to rotate through the electrode driving sheet 181, the solid-state electrorheological fluid 177 and the linkage sheet 180;
⑥ The ground line of the electrode driving piece 181 is disconnected again, and the electrorheological fluid 177 is optionally pumped out again.
It should be noted that the above-mentioned embodiments are merely preferred embodiments of the present invention, and the present invention is not limited thereto, but may be modified or substituted for some of the technical features thereof by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. Lifting circuit breaker handcart, its characterized in that includes:
A main frame (1);
the bottom plate (2), the bottom plate (2) is fixedly connected to the upper end of the main frame (1), and a rectangular groove (5) is formed in the upper end of the bottom plate (2);
And
The lifting mechanism comprises a rotating rod (6), a third half gear (7), a tooth column (8), a mounting plate (12) and a lifting seat (16), wherein the rotating rod (6) is rotationally connected to the side end of the bottom plate (2), the third half gear (7) is fixedly connected to the circumferential surface of the rotating rod (6), the tooth column (8) is slidingly connected in the rectangular groove (5), the tooth column (8) is meshed with the third half gear (7), the mounting plate (12) is fixedly connected to the upper end of the tooth column (8), and the lifting seat (16) is connected to the upper end of the mounting plate (12) through a bolt thread;
the side end of the rotating rod (6) is fixedly connected with a ratchet wheel (14), the side end of the bottom plate (2) is connected with a shell (13) through a bolt thread, the side end of the shell (13) is rotationally connected with a ratchet wheel (15) through a rotating shaft, and the ratchet wheel (15) is intermittently meshed with the ratchet wheel (14);
The lifting seat (16) is fixedly connected with an insulating cylinder (17) at the side end of the lifting seat (16), a contact arm (18) is fixedly connected with the side end of the insulating cylinder (17), the insulating cylinder (17) comprises an insulating outer cylinder body (171), an upper fixing sleeve (172) sleeved at the upper end of the outer cylinder body (171), a lower fixing sleeve (173) sleeved at the lower end of the outer cylinder body (171), an upper conducting rod (174) vertically arranged in the outer cylinder body (171) and fixed on the upper fixing sleeve (172), a lower conducting rod (175) vertically arranged in the outer cylinder body (171) and in threaded fit with the lower fixing sleeve (173), the lower conducting rod (175) is always electrified, the upper conducting rod (174) is opposite to the end of the lower conducting rod (175), the upper contact arm (18) penetrates into the insulating cylinder (17) from the upper side surface of the insulating cylinder (17) to be fixedly connected with the upper conducting rod (174) and is in electric contact with the lower conducting rod (175), the lower contact arm (18) penetrates into the insulating cylinder (17) from the lower side surface of the insulating cylinder body, the upper conducting rod (175) is arranged in the inner cylinder (17) and is in sliding contact with the lower conducting rod (175), a plurality of upper conducting rods (180) are arranged on the upper conducting rod (180) and a plurality of inner conducting rods (180) are in sliding connection with the upper conducting rod (176) and the upper conducting rod (180) is in a liquid filled with a plurality of inner fluid, and the upper conducting rods (176) is in a certain state, and the upper conducting rod is in a certain state is in a state The electrode driving piece (181) is grounded through an on-off circuit, the lower conducting rod (175) upwards slides in a sealing way to penetrate into the inner cylinder body (176), a through hole is formed at the upper end of the inner cylinder body (176) corresponding to the lower conducting rod (175), an outer rack is arranged on the outer ring of the inner cylinder body (176) along the axial direction, a straight gear (178) is meshed with the outer rack, and a servo motor (179) arranged outside the outer cylinder body (171) drives the inner cylinder body (176) to rotate through the straight gear (178);
The upper part of the inner cylinder (176) is provided with a liquid pipe which is communicated with the outside of the outer cylinder (171), and electrorheological liquid (177) is pumped into the inner cylinder (176) through the liquid pipe.
2. The lifting circuit breaker handcart according to claim 1, wherein a first gear (9) is fixedly connected to the circumferential surface of the rotating rod (6), a second gear (10) is rotatably connected to the side end of the bottom plate (2), and a rotating handle (11) is fixedly connected to the side end of the second gear (10).
3. The lifting circuit breaker handcart according to claim 1, wherein the upper end of the main frame (1) is fixedly connected with a pulling rod (4), the lower end of the main frame (1) is fixedly connected with a bottom plate (2), and four corners of the lower end of the bottom plate (2) are fixedly connected with universal wheels (3).
4. The lifting circuit breaker handcart according to claim 3, wherein the lower end of the tooth column (8) is fixedly connected with a rectangular plate, and the circumferential surface of the pulling rod (4) is provided with a rubber ring.
5. The lifting circuit breaker handcart according to claim 1, wherein the circuit breaking working method of the insulating cylinder is as follows:
① When power is required to be cut off, the electrode driving piece (181) is grounded and communicated, an electric field is formed between the lower conducting rod (175) and the electrode driving piece (181), and the electrorheological fluid (177) is converted into a solid state under the action of the electric field;
② The servo motor (179) drives the spur gear (178) to rotate, the spur gear (178) drives the inner cylinder body (176) to rotate through the external tooth belt, the inner cylinder body (176) drives the lower conductive rod (175) to rotate through the electrode driving sheet (181), the solid-state electrorheological fluid (177) and the linkage sheet (180), and the lower conductive rod (175) is in threaded fit with the fixed sleeve (173), so that the lower conductive rod (175) moves downwards under the action of the threads and is released from touching with the upper conductive rod (174) through the rotation of the lower conductive rod (175);
③ When the lower conducting rod (175) moves downwards to exceed a certain distance, the grounding circuit of the electrode driving piece (181) is disconnected, the electrorheological fluid (177) is converted into a liquid state without the action of an electric field, and the top of the lower conducting rod (175) is immersed to extinguish arc;
④ If the electrorheological fluid (177) is selected to be extracted, the electrorheological fluid (177) needs to be pumped again after the handcart is pushed back, then the electrode driving piece (181) is grounded and communicated, an electric field is formed between the lower conducting rod (175) and the electrode driving piece (181) again, and the electrorheological fluid (177) is converted into a solid state again under the action of the electric field;
⑤ The servo motor (179) drives the spur gear (178) to rotate reversely, the spur gear (178) drives the inner cylinder body (176) to rotate through the outer teeth, and the inner cylinder body (176) drives the lower conductive rod (175) to rotate through the electrode driving sheet (181), the solid-state electrorheological fluid (177) and the linkage sheet (180);
⑥ The grounding circuit of the electrode driving plate (181) is disconnected again, and the electrorheological fluid (177) can be extracted again.
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| CN110021495A (en) * | 2019-04-23 | 2019-07-16 | 西安交通大学 | Liquid arc-chutes, dc circuit breaker and its method cut-off for direct current |
| CN213845129U (en) * | 2020-11-10 | 2021-07-30 | 平高集团有限公司 | High-voltage switch holding mechanism and high-voltage switch |
| CN214176659U (en) * | 2021-01-20 | 2021-09-10 | 麦克森尼(中国)电气有限公司 | Intelligent integrated combined electrical apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE441359A (en) * | 1940-05-06 | |||
| US3095490A (en) * | 1960-02-26 | 1963-06-25 | Westinghouse Electric Corp | Circuit interrupters |
| DE1465371B2 (en) * | 1964-05-27 | 1970-09-17 | Calor-Emag Elektrizitäts-AG, 4030 Ratingen | Coupling for gas-insulated high-voltage lines |
| CN101359549B (en) * | 2008-09-28 | 2012-01-11 | 北京京东方真空电器有限责任公司 | Vacuum switch tube |
| CN102360987B (en) * | 2011-10-25 | 2014-03-26 | 沈阳华德海泰电器有限公司 | Tank type high-pressure vacuum circuit breaker |
| CN207320007U (en) * | 2017-10-24 | 2018-05-04 | 漳州雅宝电子有限公司 | A kind of electrical contact thermal cut-off of novel protected disjunction spring |
| CN209581548U (en) * | 2018-11-20 | 2019-11-05 | 国网福建省电力有限公司永安市供电公司 | Adjustable circuit breaker transfer trolley |
| CN111786281A (en) * | 2020-07-20 | 2020-10-16 | 常熟盈德气体有限公司 | Anti-ablation electrical high-voltage cabinet with temperature measurement system |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110021495A (en) * | 2019-04-23 | 2019-07-16 | 西安交通大学 | Liquid arc-chutes, dc circuit breaker and its method cut-off for direct current |
| CN213845129U (en) * | 2020-11-10 | 2021-07-30 | 平高集团有限公司 | High-voltage switch holding mechanism and high-voltage switch |
| CN214176659U (en) * | 2021-01-20 | 2021-09-10 | 麦克森尼(中国)电气有限公司 | Intelligent integrated combined electrical apparatus |
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