CN219233374U

CN219233374U - Automatic cleaning system for contact net insulator

Info

Publication number: CN219233374U
Application number: CN202320279599.1U
Authority: CN
Inventors: 张春涛; 李俊; 王竹林; 庹茹君; 王小康
Original assignee: Chengdu Xijiao Rail Transit Technology Service Co ltd
Current assignee: Chengdu Xijiao Rail Transit Technology Service Co ltd
Priority date: 2023-02-21
Filing date: 2023-02-21
Publication date: 2023-06-23
Anticipated expiration: 2033-02-21

Abstract

The utility model discloses an automatic cleaning system for an insulator of a contact net, belongs to the technical field of insulator cleaning, and solves the problem of low manual wiping efficiency in insulator cleaning; the device comprises an engineering operation vehicle, wherein a lifting mechanism is arranged at one end of the top of the engineering operation vehicle, a mechanical arm is arranged on the lifting mechanism, an insulator cleaning device is arranged in the engineering operation vehicle, and an ice spraying pipe of the insulator cleaning device passes through the lifting mechanism and is communicated with a spray head on the mechanical arm; the other end at the top of the engineering operation vehicle is provided with an insulator identification positioning system. The utility model cleans the insulator by using dry ice particles generated by the insulator cleaning system, and has the advantages of high cleaning efficiency, good effect, safety and no pollution.

Description

Automatic cleaning system for contact net insulator

Technical Field

The utility model relates to the technical field of insulator cleaning, in particular to an automatic cleaning system for contact net insulators.

Background

The insulator is a core part of an electrified railway contact net system, and the insulator has the main functions of insulating an electrified line from the ground and mechanically supporting and positioning a contact net. In order to meet the railway transportation requirement, the contact net must be powered continuously in all weather, and the power supply quality meets the operation requirement of electric traction. Once the overhead contact system is powered off, or the contact between the pantograph of the train and the overhead contact system is poor, the power supply of the train is affected. According to statistics, a large part of operation faults of electrified railways in China are caused by faults of the overhead contact system, so that the overhead contact system is gradually considered as a link which is most prone to faults and causes safety accidents in the electrified railways by people. The insulator pollution flashover has the greatest potential hazard in the normal operation of the electrified railway, and 80% of the electrified railway operation accidents are related to the insulator pollution flashover.

The insulator pollution flashover is caused by the fact that the insulation performance is reduced after the surface pollution is wetted, the creeping discharge phenomenon is generated, the flashover is further caused, the flashover of the insulator can cause the feeder circuit breaker of the substation to trip, and the power supply is stopped. Once pollution flashover occurs on an insulator in operation, large-area and long-time sudden power failure can be caused, and serious economic loss is caused.

The cleaning of the insulator is a main means for solving the problem of pollution flashover of the insulator, and the insulator is cleaned by manually wiping and flushing with charged water in the prior art.

The manual wiping is to wipe the insulators one by using the rags under the condition of power failure, so that the operation efficiency is low and the cleaning effect is poor.

The live water flushing is to adopt the manual control squirt of the water flushing vehicle to flush the insulator under the condition that the contact net is not powered off at a long distance under high pressure, the cleaning effect is not ideal, and has strict requirements on the pressure, flow and resistance value of water, and other equipment which is not tight in sealing or has defects is easy to flush, so that the safety is poor.

Disclosure of Invention

Aiming at the problems in the prior art, the utility model provides an automatic cleaning system for a contact net insulator, which solves the problem of low manual wiping efficiency in cleaning the insulator.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a contact net insulator self-cleaning system, including engineering operation car, be provided with elevating system on the one end at engineering operation car top, be provided with the arm on the elevating system, be provided with insulator belt cleaning device in the engineering operation car, insulator belt cleaning device's ice spray pipe passes elevating system and communicates with the shower nozzle on the arm; the other end at the top of the engineering operation vehicle is provided with an insulator identification positioning system, and the lifting mechanism, the two mechanical arms, the insulator identification positioning system and the insulator cleaning device are all electrically connected with an upper computer in the engineering operation vehicle.

In the scheme, an engineering operation vehicle is adopted to travel along a contact net, the engineering operation vehicle utilizes an insulator identification positioning system to position an insulator on the contact net in the forming process, a lifting mechanism lifts a mechanical arm to a proper height, a spray head on the mechanical arm is aligned with the insulator, and an insulator cleaning device impacts dry ice particles on dirt on the surface of the insulator through the spray head; the surface of the dirt is impacted by dry ice particles so as to suddenly drop in temperature, the surface of the dirt is embrittled and warped, the dry ice particles are sublimated into gas rapidly, the volume of the dry ice particles expands to more than 800 times of the original volume in microsecond time, the disintegrated dirt is peeled off and removed from the surface of an object, and meanwhile, the peeled dirt is instantaneously blown away from the cleaning surface by high-speed airflow, so that the insulator is cleaned rapidly, effectively and safely.

Further, the lifting mechanism is a scissor lift.

In this scheme, adopt scissors formula lift, make the arm keep steady at the lift in-process, avoid rocking.

Further, the two mechanical arms are six-axis mechanical arms, and the two six-axis mechanical arms are symmetrically arranged by the central line of the lifting mechanism.

In this scheme, six arm degrees of freedom are big, are convenient for adjust the position of shower nozzle, and adopt two six arm to carry out symmetrical cleaning simultaneously to the both sides of same insulator, have improved cleaning efficiency.

Further, the insulator identification positioning system comprises a binocular camera, wherein the binocular camera is fixed on one end, far away from the mechanical arm, of the top of the engineering operation vehicle, and the binocular camera is electrically connected with the upper computer.

In this scheme, adopt binocular camera not only can discern the insulator to can counterpoint the distance of insulator.

Further, the spray head is fan-shaped, and the mechanical arm drives the spray head to move and keeps the angle between the central axis of the spray head and the vertical axis of the insulator at 75-90 degrees.

In the scheme, according to the test of the spraying angle, the optimal angle cleaning effect can be obtained by adopting the spraying angle of 75-90 degrees, and the spray head adopts a fan-shaped structure to enable the sprayed dry ice particles to cover the whole insulator, so that the cleaning efficiency is improved.

Further, the insulator cleaning device comprises an air compressor and a dry ice cleaning machine, wherein the air compressor is communicated with the dry ice cleaning machine through an air inlet pipe, the dry ice cleaning machine is communicated with the spray head through an ice spraying pipe, and the air compressor and the dry ice cleaning machine are electrically connected with an upper computer.

In this scheme, air compressor produces high-pressure gas, and high-pressure gas gets into dry ice cleaning machine through the intake pipe, and high-pressure gas and dry ice granule intensive mixing drive dry ice granule and spout from the shower nozzle through the ice pipe.

Further, a silica gel sleeve hose is sleeved on the outer ring of the ice spraying pipe.

In this scheme, the silica gel cover hose can protect the ice spraying pipe, and makes the ice spraying pipe wear-resisting more, resistant dynamic bending.

Further, the ice spraying pipe comprises an inner layer and an outer layer, the inner layer and the outer layer are made of elastic fibers, an inner adhesive layer is arranged between the inner layer and the outer layer of the ice spraying pipe, and the inner adhesive layer is made of synthetic rubber.

In this scheme, elastic fiber makes the ice spraying pipe have certain elasticity and deformability, and synthetic rubber makes ice spraying pipe can be low temperature resistant, antistatic, and ice spraying pipe quality so design can improve self life.

The utility model discloses an automatic cleaning system for contact net insulators, which has the beneficial effects that:

1. the utility model cleans the insulator by using dry ice particles generated by the insulator cleaning system, and has the advantages of high cleaning efficiency, good effect, safety and no pollution.

2. According to the utility model, two mechanical arms can be used for symmetrically cleaning two sides of the same insulator at the same time, so that the cleaning efficiency is improved.

3. The utility model automatically and dynamically cleans the insulator in the running process of the engineering operation vehicle without stopping the vehicle, and has high cleaning efficiency.

Drawings

Fig. 1 is a schematic structural diagram of an automatic cleaning system for contact net insulators;

fig. 2 is an isometric view of an automatic cleaning system for catenary insulators;

wherein: 1. engineering operation vehicle; 2. a lifting mechanism; 3. a mechanical arm; 4. an insulator identification positioning system; 5. an insulator cleaning device; 6. contact net; 7. an insulator; 31. a spray head; 51. an air compressor; 52. an air inlet pipe; 53. a dry ice cleaning machine; 54. and an ice spraying pipe.

Detailed Description

The following description of the embodiments of the present utility model is provided to facilitate understanding of the present utility model by those skilled in the art, but it should be understood that the present utility model is not limited to the scope of the embodiments, and all the utility models which make use of the inventive concept are protected by the spirit and scope of the present utility model as defined and defined in the appended claims to those skilled in the art.

Example 1

Referring to fig. 1, a schematic structural diagram of an automatic cleaning system for an overhead contact line insulator is provided, and the purpose of the automatic cleaning system for an overhead contact line insulator is to solve the problem of low efficiency of manual wiping in cleaning the insulator, and detailed description will be given below on each component.

The automatic cleaning system for the contact network insulator comprises an engineering operation vehicle 1, a lifting mechanism 2, two mechanical arms 3, an insulator identification and positioning system 4 and an insulator cleaning device 5.

The engineering operation vehicle 1 not only serves as a carrier of other components of the overhead contact line insulator automatic cleaning system, but also can advance along the overhead contact line 6, so that the insulators 7 on the whole overhead contact line 6 can be cleaned conveniently.

The engineering operation vehicle 1 of the present embodiment adopts a conventional line maintenance operation vehicle, which is a conventional technology in the art, so specific working principles and connection relations thereof will not be described in detail.

The elevating system 2 is fixed in the one end at the top of engineering operation car 1, and elevating system 2 is the scissors formula lift, and the scissors formula lift makes arm 3 remain steady at the lift in-process, avoids rocking.

The scissor lift of the present embodiment directly adopts the prior art, and as a preferred embodiment, a scissor lift in a passive compensation-based constant force scissor lift with publication number CN217627402U is adopted, and because the scissor lift is the prior art, specific working principles and connection relationships thereof are not described in detail.

The two mechanical arms 3 are six-axis mechanical arms, the two six-axis mechanical arms are symmetrically arranged along the central line of the lifting mechanism 2, a spray head 31 is fixed on the six-axis mechanical arms, and the spray head 31 is communicated with the insulator cleaning device 5. The six-axis mechanical arm has large freedom degree, is convenient for adjusting the position of the spray head 31, and can symmetrically clean the two sides of the same insulator 7 at the same time by adopting two six-axis mechanical arms, so that the cleaning efficiency is improved.

The insulator identification and positioning system 4 comprises an insulator identification and positioning system 4 comprising a binocular camera fixed on one end of the top of the engineering work vehicle 1 far away from the mechanical arm 3. The binocular camera can not only identify the insulator 7, but also can align the distance of the insulator 7.

The insulator cleaning device 5 is fixed inside the engineering operation vehicle 1, and the ice spraying pipe 54 of the insulator cleaning device 5 passes through the lifting mechanism 2 to be communicated with the spray head 31 on the mechanical arm 3. The insulator cleaning device 5 can generate a large amount of dry ice particles, and the dry ice particles are ejected from the shower head 31 by high-pressure gas to flush the insulator 7.

The upper computer in the engineering operation vehicle 1 is respectively and electrically connected with two six-axis mechanical arms, an electric cylinder of a scissor type lifter, an insulator cleaning device 5 and a binocular camera.

The model of the two six-axis mechanical arms is GS-614, the model of the binocular camera is LXPS-HS0222-B/C, the upper computer is a computer, the computer is fixed inside the engineering operation vehicle 1, the computer respectively controls the movement of the two six-axis mechanical arms, the lifting of the scissor type lifter, the ranging of the binocular camera, and the starting and closing of the insulator cleaning device 5 are all prior art in the field, so the specific working principle and the connection relation thereof are not repeated.

The binocular camera collects images of the contact network in real time, the images are transmitted to the computer and the monitoring end in real time, and when monitoring end personnel find that the insulator images are shot, the distance measurement is carried out based on the binocular camera, and the operation of the mechanical arm is controlled.

As a further technical solution of the present embodiment, the spray head 31 is fan-shaped, and the angle between the central axis of the spray head 31 and the vertical axis of the insulator 7 is 75 ° -90 ° during the process of cleaning the insulator 7 by the fan-shaped spray head 31. According to the test of the spraying angle, the optimal angle cleaning effect can be obtained by adopting the spraying angle of 75-90 degrees, and the spray head adopts a fan-shaped structure to enable sprayed dry ice particles to cover the whole insulator, so that the cleaning efficiency is improved.

The working principle of the embodiment is as follows:

the engineering operation vehicle 1 advances along the contact net 6, the engineering operation vehicle 1 positions the insulator 7 on the contact net 6 in the forming process of the engineering operation vehicle 1, the scissor type lifting mechanism 2 lifts two six-axis mechanical arms to a proper height, the two six-axis mechanical arms aim at two sides of the insulator 7 respectively with the spray heads 31 on the two six-axis mechanical arms, the insulator cleaning device 5 generates dry ice particles, and the dry ice particles strike dirt on two side surfaces of the insulator 7 through the spray heads 31The method comprises the steps of carrying out a first treatment on the surface of the The surface of the dirt is suddenly reduced in temperature due to the impact of dry ice particles, which cause embrittlement and buckling deformation of the surface of the dirt, and the dry ice particles are quickly sublimated into CO ₂ The gas expands to 800 times of the original volume in microsecond time, the broken dirt is peeled off and removed from the surface of the object, and the peeled dirt is instantaneously blown away from the cleaning surface by the high-speed air flow of the spray head 31, so that the insulator 7 cleaning operation is completed quickly, effectively and safely.

Example 2

Referring to fig. 2, a schematic structural diagram of an insulator 7 cleaning system is provided, and the purpose of the insulator 7 cleaning system is to solve the problem of poor cleaning effect of the charged water washing insulator 7, and the components thereof will be shown in detail below.

The insulator 7 cleaning system of the present embodiment includes an air compressor 51, an air intake pipe 52, a dry ice cleaner 53, and an ice blast pipe 54.

The air compressor 51 and the dry ice cleaning machine 53 are both fixed in the space inside the engineering operation vehicle 1, the air compressor 51 and the dry ice cleaning machine 53 are communicated through the air inlet pipe 52, the dry ice cleaning machine 53 is communicated with the spray head 31 through the ice spraying pipe 54, and the air compressor 51 and the dry ice cleaning machine 53 are both electrically and mechanically connected with an upper computer.

In this embodiment, the model of the air compressor 51 is GV-7A, the model of the dry ice cleaning machine 53 is ZF-2.5-GY, the air compressor 51 generates high-pressure gas, the high-pressure gas enters the dry ice cleaning machine 53 through the air inlet pipe 52, the high-pressure gas is fully mixed with dry ice particles and drives the dry ice particles to be ejected from the nozzle 31 through the ice ejecting pipe 54.

As a further technical scheme of the embodiment, a silica gel sleeve hose is sleeved on the outer ring of the ice spraying pipe 54.

The silica gel sleeve hose can protect the ice spraying pipe 54, and the ice spraying pipe 54 is more wear-resistant and resistant to dynamic bending.

The ice spraying pipe 54 comprises an inner layer and an outer layer, wherein the inner layer and the outer layer are made of elastic fibers, an inner adhesive layer is arranged between the inner layer and the outer layer, and the inner adhesive layer is made of synthetic rubber.

The elastic fiber enables the ice spraying pipe 54 to have certain elasticity and deformation capability, the synthetic rubber enables the ice spraying pipe 54 to resist low temperature and static electricity, and the ice spraying pipe 54 is made of the material which can prolong the service life of the ice spraying pipe.

The working principle of the embodiment is as follows:

the air compressor 51 absorbs external air from the outside of the engineering work vehicle 1 and compresses the air into high-pressure air, the high-pressure air enters the dry ice cleaning machine 53 through the air inlet pipe 52, and the high-pressure air is fully mixed with dry ice particles and drives the dry ice particles to be ejected from the nozzle 31 through the ice ejecting pipe 54.

Although specific embodiments of the utility model have been described in detail with reference to the accompanying drawings, it should not be construed as limiting the scope of protection of the present patent. Various modifications and variations which may be made by those skilled in the art without the creative effort are within the scope of the patent described in the claims.

Claims

1. An automatic cleaning system for contact net insulators is characterized in that: the automatic cleaning device comprises an engineering operation vehicle (1), wherein a lifting mechanism (2) is arranged at one end of the top of the engineering operation vehicle (1), two mechanical arms (3) are arranged on the lifting mechanism (2), an insulator cleaning device (5) is arranged in the engineering operation vehicle (1), and an ice spraying pipe (54) of the insulator cleaning device (5) penetrates through the lifting mechanism (2) to be respectively communicated with spray heads (31) on the two mechanical arms (3); the other end at the top of the engineering operation vehicle (1) is provided with an insulator identification positioning system (4), and the lifting mechanism (2), the two mechanical arms (3), the insulator identification positioning system (4) and the insulator cleaning device (5) are all electrically connected with an upper computer in the engineering operation vehicle (1).

2. The catenary insulator automatic cleaning system of claim 1, wherein: the lifting mechanism (2) is a scissor type lifter.

3. The catenary insulator automatic cleaning system of claim 1, wherein: the two mechanical arms (3) are six-axis mechanical arms, and the two six-axis mechanical arms are symmetrically arranged on the central line of the lifting mechanism (2).

4. The catenary insulator automatic cleaning system of claim 1, wherein: the insulator identification and positioning system (4) comprises a binocular camera, wherein the binocular camera is fixed on one end, far away from the mechanical arm (3), of the top of the engineering operation vehicle (1), and the binocular camera is electrically connected with the upper computer.

5. The catenary insulator automatic cleaning system of claim 1, wherein: the spray head (31) is fan-shaped, and the mechanical arm (3) drives the spray head (31) to move and keep the angle between the central axis of the spray head (31) and the vertical axis of the insulator (7) to be 75-90 degrees.

6. The catenary insulator automatic cleaning system of claim 1, wherein: insulator belt cleaning device (5) include air compressor (51) and dry ice cleaning machine (53), air compressor (51) with through intake pipe (52) intercommunication between dry ice cleaning machine (53), dry ice cleaning machine (53) through blast pipe (54) with shower nozzle (31) intercommunication, air compressor (51) with dry ice cleaning machine (53) all are connected with the host computer electricity.

7. The catenary insulator automatic cleaning system of claim 1, wherein: the outer ring of the ice spraying pipe (54) is sleeved with a silica gel sleeve hose.

8. The catenary insulator automatic cleaning system of claim 7, wherein: the ice spraying pipe (54) comprises an inner layer and an outer layer, the inner layer and the outer layer are made of elastic fibers, an inner adhesive layer is arranged between the inner layer and the outer layer of the ice spraying pipe (54), and the inner adhesive layer is made of synthetic rubber.