CN111359952A

CN111359952A - Sealing waterproof system

Info

Publication number: CN111359952A
Application number: CN202010012232.4A
Authority: CN
Inventors: 刘群
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-07
Filing date: 2020-01-07
Publication date: 2020-07-03

Abstract

The invention relates to a sealed waterproof system which comprises a silent compressor, an air storage device, a compressed air pressure equalizing device, a movable inflation pipeline, an automatic telescopic air supply pipeline, a compressed air pipeline quick assembly device, a driving chain device, a driving motor, a driving mechanism, a following movable drag chain and a pipe bundle. The invention relates to a sealing device capable of efficiently preventing water from entering a bogie wheel pair gear box of various railway track traffics during cleaning. According to the requirements of the vehicle bogie wheel pair cleaning process, when the wheel pair is disassembled and cleaned, the rapid protection connection can be carried out on the gear box through the compressed air pipeline quick assembly device, and the wheel pair moving state can still carry out good sealing on the wheel pair when the wheel pair is cleaned by combining the compressed air pressure equalizing device, the movable inflation pipeline and the automatic telescopic air supply pipeline, so that cleaning water is prevented from entering the gear box, and the requirements of the vehicle bogie wheel pair on the cleaning protection of the gear box can be met.

Description

Sealing waterproof system

Technical Field

The system is suitable for cleaning the bogie wheel pair gear box of various railway track traffic vehicles before component assembly, and cleaning and protecting operation in the overhaul process and before assembly. The proposal of the device can better realize the sealing between the relative rotation parts when cleaning, prevent the cleaning liquid from entering the gear box when cleaning by jet flow, and has clear principle and reliable effect. The hidden danger of adopting jet flow to clean the wheel set is eliminated, and the road is paved by using the technology.

Background

The wheel set of the train is an important component, ensures the running state of the wheel set to be intact, is vital to the safe running of the train, and because the wheel set runs in the open environment for a long time, the outside of the wheel set is full of dirt, and because of long-term meshing of a transmission gear, small scrap iron and lubrication are also generated and mixed and adhere to the surface of the gear, so that the abrasion is aggravated, and the transmission quality is influenced.

Thus, during maintenance of the wheel-set, thorough cleaning of both the outer surface of the wheel-set and the interior of the gearbox is required.

Because the outer edge surface of the gear box is in a negative complex shape, the gear box can only be washed by a water jet method, and the design operation finds that when the outer surface of the gear box is washed by the water jet, washing liquid enters the interior of the gear box through the rotating surface of the shaft and is mixed with lubricating oil in the interior.

Since the cleaning liquid is usually alkaline, if the cleaning liquid cannot be completely removed after being mixed into the gear box, the cleaning liquid corrodes the surface of the gear, thereby bringing troubles to subsequent operations. Meanwhile, the cleaning agent is water-based, and if the cleaning agent is not cleaned completely, the cleaning agent can be frozen when the outdoor temperature is low, and the cleaning agent further becomes an obstacle to the running of gears and bearings.

In order to avoid the occurrence of the consequences, when dirt on the outer side of the gear box is cleaned, a full-manual mode is adopted, time and labor are wasted, cost is high, and sometimes when jet flow cleaning is needed, cleaning pressure is reduced, and cleaning effect is influenced inevitably. However, practice has shown that even when the cleaning pressure is reduced to 0.4MPa, a large amount of water is trapped inside after cleaning.

Because manual cleaning is time consuming, labor consuming and costly, it is desirable to have the benefits of jet cleaning

While avoiding the hazards of jet cleaning.

For this reason, the method of applying the heat insulating material externally, such as winding with a sealing strip, wrapping with a plastic film, etc., has been adopted, but the effect is still not ideal, and the analytical reasons are mainly that the shaft and the shell are moved relatively in the cleaning process, there is no way, it is impossible to apply a large pressing force on the sealing surface, and the reflected water flow formed by the water hammer phenomenon has a large impact force, so that it is difficult to block the cleaning water flow from entering the interior of the gear box.

The current wheel set gear box washs the majority and is the artifical cleaning mode of wiping, or the manual work is washd with the handheld operation of high-pressure water cleaning machine, still does not solve the protection problem at this position for the washing liquid can get into the gear box, emulsifies gear oil in the gear box, in the follow-up refueling in-process, will wash the gear box inside with gear oil repeatedly, just can annotate new gear oil again. Causing a certain waste and the operation procedure is very complicated.

When the current manual wiping cleaning and high-pressure water manual cleaning work, the wheel set and the gear box cannot move, so that part of the surface cannot be cleaned. And the cleaning equipment is placed at a fixed position and is not moved, the cleaning machine is manually operated to clean the part, and the part is placed on the ground or a bracket and needs to be manually turned to move the workpiece. The labor intensity of manual operation is high, and potential industrial injury risk factors exist.

Disclosure of Invention

Technical scheme (I)

The content of the invention comprises: the device comprises a silent compressor, an air storage device, a compressed air pressure equalizing device, a movable inflation pipeline, an automatic telescopic air supply pipeline, a compressed air pipeline quick-assembling device, a driving chain device, a driving motor, a driving mechanism, a following movable drag chain and a pipe bundle.

The compressed air pressure equalizing device and the air storage device are designed according to a certain pressure-stabilizing flow, so that the system air supply is pressure equalizing when the air pressure is sealed, cleaning water in the system is prevented from entering the gear box, and meanwhile, the silent compressor is adopted, so that the system noise is low when air supply is ensured, and a good working environment is kept.

The movable inflation pipeline and the automatic telescopic air supply pipeline can meet the requirement that the air supply of the system is still effective and continuous when the wheel pair is in a moving state, and the reliable continuity of air sealing is ensured.

Wherein, compressed air pipeline quick-assembling device. Design according to different gear box oil inlets, can be quick carry out the fast-assembling with each gear box oil inlet and be connected, effective fastening, safe and reliable.

Wherein the drive chain device. The wheel pair is pulled to a cleaning working position from the inlet end by the action of the stop block on the chain and then is moved to the outlet end, so that the cleaning operation of the wheel pair is completed, and the wheel pair cleaning machine is stable and reliable.

Wherein the driving mechanism is an execution unit of the driving chain device.

The following moving drag chain and the pipe bundle are used for driving the conveying and the movement of the auxiliary line of the chain device.

(II) advantageous effects

The invention provides a sealing system for preventing water from entering a gear box when the gear box is cleaned by a vehicle bogie wheel set, which has the advantages of small floor area, high automation degree, simple structure, convenience in use and easiness in adjustment, can be used for an automatic cleaning system and a manual cleaning system, and can prevent the water from entering the gear box when the gear box is cleaned. The wheel pair is mechanically moved in and out, so that the degree of automation is high, the working conditions of operators are improved, and potential industrial injury risk factors are eliminated.

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 schematic view of the structure of the apparatus of the present invention

Figure 2 is a schematic view of the hermetic sealing principle of the present invention.

FIG. 3 is a three-dimensional schematic view of the air-tight air inlet interface of the present invention

Fig. 4 provides an example, and graphically shows the relative relationship of each link.

Detailed Description

The working principle and the characteristics of the invention are explained with reference to fig. 1, and in order to be able to use the gas seal principle for practical operation, a structure is proposed which is mainly composed of three parts, namely a gas storage part and a gas introduction part and a wheel pair inlet and outlet part, as shown in fig. 2.

The working process comprises the following steps: the method comprises the steps of firstly enabling a wheel pair to enter a position under the drive of a person, communicating an air supply pipe with an oil discharge port of a gear box, then reaching a working position under the drive of a drive chain to finish cleaning operation, reaching a moving-out position under the drive of the drive chain, and detaching the air supply pipe, wherein the air supply pipe is located above the wheel pair and passes through a channel formed by the running of a speed reducer. When the gas supply pipeline is pulled by the speed reducer from the entering position to the moving position, the gas supply pipeline is disconnected. The air supply connector is pulled back into the entry end by the pull cord. The operation is repeated in the next time when the wheel set is cleaned.

The part 1 in the figure is an air storage device, and in consideration of the small size of an oil outlet of a gear box, compressed air with normal pressure is used as a blocking medium, and the situation that the blocking pressure is insufficient due to limited air inflow can occur, so that the problem can be solved by increasing the pressure of the compressed air. The method for increasing the pressure of the compressed air can adopt a special compressor or a pressurizing method, and the purpose of arranging the air storage tank is to reduce the influence on other air using structures during plugging.

The second part is an air charging device which consists of a movable air charging pipeline and an air supply pipeline with a telescopic function. The air supply line can be accessed from above the wheel pair, as shown in the figure, or from the track, and the principle is to avoid interference with other structures. However, when accessing from below, the supply lines disconnected in the removal position have to be manually pulled back into the access position due to limited space, in particular to prevent the pit from causing any possible obstruction to the movement of the lines.

The third part is a driving chain, and the wheel pair is pulled to a cleaning working position from the inlet end under the action of a stop block on the chain and then is moved to the outlet end to complete the cleaning operation of the wheel pair.

Fig. 3 is a scheme of bottom intervention, compressed air is introduced from the inside of the rail and led to an oil discharge port of the speed reducer, in the operation process, a compressed air pipeline moves inside the rail, and a baffle is additionally arranged on the inner side of the rail in the chamber body, so that the compressed air pipeline is prevented from being pulled accidentally.

Claims

1. A sealing system for preventing water from entering a vehicle bogie wheel-to-gear box during cleaning, comprising: the device comprises a silent compressor, an air storage device, a compressed air pressure equalizing device, a movable inflation pipeline, an automatic telescopic air supply pipeline, a compressed air pipeline quick-assembling device, a driving chain device, a driving motor, a driving mechanism, a following movable drag chain and a pipe bundle. Wherein, the movable inflation pipeline and the automatic telescopic air supply pipeline can move along with the advancing of the wheel pairs and work continuously.

2. The sealing system for preventing water from entering into a wheel-to-gear box of a vehicle bogie as claimed in claim 1, wherein a silent pressure-equalizing air supply and storage device is provided at the front end of the system to ensure stable air pressure and air quantity, low noise and suitable operation environment during air supply of the sealing system during cleaning.

3. The sealing system for preventing water inflow in cleaning a wheel-to-gear box of a vehicle bogie as claimed in claim 1, wherein the inflating device is a movable inflating pipeline and an automatic telescopic gas pipeline, and the moving state of the wheel-to-gear box in the cleaning process and the accompanying and continuous operation of the gas pipeline can be satisfied.

4. The system as claimed in claim 1, wherein the system includes a compressed air line quick mount for quick snap-fitting engagement with an oil inlet port on the gearbox.

5. A sealing system for preventing water ingress during cleaning of a wheel-to-gear box of a vehicle bogie as claimed in claim 1 wherein the system is provided with drive train means to smoothly move the wheel-pair from each station to the next station.