WO2020207018A1

WO2020207018A1 - Air-cooled motor-dedicated lubricant feeding pipe

Info

Publication number: WO2020207018A1
Application number: PCT/CN2019/120112
Authority: WO
Inventors: 王萌; 王连军; 石涛
Original assignee: 利华益维远化学股份有限公司
Priority date: 2019-04-11
Filing date: 2019-11-22
Publication date: 2020-10-15
Also published as: CN109973802A; CN109973802B

Abstract

An air-cooled motor-dedicated lubricant feeding pipe, comprising a T-shaped three-way assembly and a lubricant discharge assembly; the T-shaped three-way assembly comprises a T-shaped three-way joint (1) and a double threaded joint (2), the T-shaped three-way joint comprising a main pipe (11) and a branch pipe (12), two ends of the main pipe respectively being a first pipe opening (18) and a second pipe opening, and the double threaded joint being connected to the branch pipe; the lubricant discharge assembly comprises a lubricant discharge column (3), a lubricant pipe (4), a lubricant feeding nozzle (5), a transition joint (6), a steel wire rope (7), a nylon rope (10) and a recovery box (9), the lubricant pipe having one end connected to the first pipe opening, and the other end connected to the lubricant feeding nozzle by means of the transition joint, the lubricant discharge column being provided inside the main pipe of the T-shaped three-way joint and blocking the second pipe opening, the nylon rope having one end tied to the lubricant discharge column, and the other end tied to the recovery box, and the steel wire rope having one end clamped in the transition joint, and the other end which passes through the lubricant pipe and is connected to the lubricant discharge column. Said lubricant feeding pipe can discharge lubricating grease in the lubricant pipe by means of the lubricant discharge column after the completion of the lubricant feeding or before the lubricant feeding, solving the drawbacks that the residual lubricating grease in the traditional lubricant feeding extension pipe cannot be discharged, and is liquefied and deteriorated or coagulated in a high-temperature and humid environment for a long time.

Description

A special fueling pipe for air-cooled motor

Technical field

The invention relates to the field of refueling equipment, in particular to a special refueling pipe for an air-cooled motor.

Background technique

Evaporative air cooler, also called closed cooling tower, is a high-efficiency energy-saving cooling equipment that integrates water cooling and air cooling, heat and mass transfer processes, and has the advantages of both. It is widely used in metallurgy, petrochemical, and electric power. , Chemical and other industries. Its working process is to use the circulating water pump to transport the cooling water in the circulating water tank to the water spray system located above the process tube bundle, and the water spray system sprays the cooling water down to the surface of the tube bundle, forming a thin water film on the surface of the tube bundle At the same time, the axial flow fan sucks in the air, so that the air sweeps the obliquely placed tube bundle from below the tube bundle, and accelerates the air flow to quickly evaporate the thin water film outside the tube bundle to achieve the purpose of cooling and cooling the tube bundle. Although such a working process effectively meets the needs of process production, it is very unfavorable for the subsequent maintenance and maintenance of the axial flow fan. The air outlet and the axial flow fan are installed at the top of the entire air cooler, and the thin water film on the surface of the tube bundle is rapid. After vaporization, a large amount of water vapor with heat is discharged by the axial flow fan, so that the entire axial flow fan unit is always exposed to the high temperature steam environment. When refueling and maintenance of the axial flow fan motor, the operator needs to explore the body into the fan activity Within the radius, although there is a protective net, the strong wind and high temperature steam make the operation very difficult and there are huge safety risks (under the action of strong wind, the high temperature steam will affect the sight of the operator and even cause breathing difficult). The conventional solution is to shut down for maintenance or extend the refueling pipeline. Although this method can achieve the purpose of refueling in a safe area, because of the long maintenance period (two-pole motor bearing grease is generally refilled once 1440 hours), it is humid and high-temperature environment , The grease in the extension pipe of the running unit will liquefy and deteriorate, while the grease remaining in the extension pipe of the standby unit will condense into blocks and block the refueling pipe. The degraded grease cannot be discharged during refueling and maintenance. Direct refueling will cause these degraded greases. It is added to the motor bearing chamber to accelerate the deterioration of the grease in the bearing chamber, damage the bearing or shorten its service life. In severe cases, it will cause damage to the air-cooled motor and affect the normal production of the device. There are great disadvantages; the motor is added during operation. Grease injection can ensure uniform grease injection. Therefore, shutdown maintenance is firstly not conducive to the refueling and maintenance of the motor. Secondly, shutdown maintenance not only increases the process operation, but also is not conducive to the stability of production. For example, in the high temperature season, the production equipment has very high requirements for cooling At this time, shutdown maintenance is basically impossible to implement.

Summary of the invention

The purpose of the present invention is to overcome the shortcomings of the prior art and provide a special fueling pipe for air-cooled motors.

In order to achieve the above objectives, the technical solution of the present invention is: a special fuel filler pipe for air-cooled motors, which is characterized in that it includes a T-shaped three-way assembly and an oil drain assembly;

The T-shaped tee assembly includes a T-shaped tee and a wire joint. The T-shaped tee includes a main pipe and a branch pipe connected perpendicularly to the center of the main pipe. Both ends of the main pipe are a first nozzle and a second nozzle. , One end of the wire joint is movably connected with the branch pipe,

The oil drain assembly includes an oil drain column, an oil pipe, a fuel nozzle, a transition joint, a steel wire rope, a nylon rope and a recovery box,

One end of the oil pipe is connected to the first nozzle, and the other end is connected to a fueling nozzle through a transition joint. The oil pipe is movably connected to the transition joint. The center of the inner wall of the transition joint is provided with a retaining ring. The inner diameter of the oil pipe is the same as the inner diameter of the main pipe.

The recycling box includes a box body and a box cover, the box body is movably connected with the box cover, the center of the bottom of the box body is provided with a through hole II, the center of the inner wall of the box cover is provided with a fixed column, and the side wall of the fixed column With through hole Ⅲ,

The oil drain column includes a central column and a rubber sleeve, the rubber sleeve is sleeved on the central column, the outer diameter of the rubber sleeve is adapted to the inner diameter of the T-shaped three-way main pipe, and the side wall of one end of the central column is provided with a through hole Ⅰ. The oil drain column is arranged inside the T-shaped three-way main pipe and blocks the second nozzle. The central column is provided with a through hole I and one end passes through the second nozzle.

One end of the nylon rope passes through the through hole I to be bound to the central post, and the other end passes through the box body and the through hole III to be bound to the fixed post. One end of the steel wire rope is provided with a cylindrical clamping head, the clamping head is clamped on the transition joint baffle ring, and the other end of the steel wire rope is connected to the central column after passing through the oil pipe.

Further; the outer edge of the first nozzle and the outer edge of the branch pipe are provided with convex rings, the main pipe is close to the outer wall of the first nozzle and the outer wall of the branch pipe are sleeved with an inner threaded button, the inner threaded button is close to the T-shaped tee A snap ring is provided on the inner wall at one end of the center. The outer diameter of the protruding ring is smaller than the inner diameter of the inner thread and larger than the inner diameter of the snap ring. Both ends of the threaded joint are provided with external threads. One end of the threaded joint is connected to the branch pipe nozzle and Internal threaded thread connection,

Further; the two ends of the tubing are respectively provided with an inner wire tubing joint and an outer wire tubing joint, the inner wire tubing joint is connected to a fueling nozzle through a transition joint, the transition joint oil inlet is provided with an inner wire thread, the transition The oil outlet of the joint is provided with an external thread, the oil outlet of the fuel filler is provided with an external thread, the oil outlet of the fuel filler is threadedly connected to the oil inlet of the transition joint, and the oil outlet of the transition joint is threaded to the inner threaded tubing A joint, the outer threaded oil pipe joint is connected to the first nozzle and threadedly connected with the inner threaded button.

Further; the central column is respectively provided with raised limit rings at positions close to both ends, the rubber sleeve is sleeved between the two limit rings, and the outer diameter of the rubber sleeve is larger than the outer diameter of the limit ring.

Further; the T-shaped three-way assembly further includes a first round pipe joint, the second nozzle is provided with an annular baffle, the outer center of the annular baffle is connected to the first round pipe joint, the first round pipe The joint passes through the main pipe through the central hole of the annular baffle, and one end of the central column is provided with a through hole I passing through the first round pipe joint;

The recovery box further includes a second round pipe joint, the outer center of the bottom of the box body is connected to a second round pipe joint, and the second round pipe joint penetrates the inside of the box body through the through hole II; the oil drain assembly further includes A hose, one end of the hose is sleeved with a first round pipe joint, and the other end is sleeved with a second round pipe joint;

After one end of the nylon rope is tied to the central post, the other end is passed through the hose, the second round pipe joint, the box body and the through hole III in turn before being tied to the fixed post.

Further; the box body and the box cover are threadedly connected.

The beneficial effects of the present invention:

1) The present invention has simple structure and convenient installation, and can be specially used for the maintenance and maintenance of equipment such as air cooler axial flow fans that need to extend the refueling pipe.

2) The present invention can extend the working position to a safe area outside the rotation radius of the axial flow fan, avoiding high-altitude operations under strong wind, steam, and high temperature environments, and greatly ensuring the safety of operations.

3) The present invention can discharge the grease in the oil pipe through the oil discharge column after the refueling is finished or before refueling, and solves the drawbacks of the remaining grease in the traditional refueling extension pipe that cannot be eliminated, and it is liquefied and deteriorated or condensed under high temperature and humidity for a long time. Effectively ensure the quality of refueling, prolong the service life of air-cooled motor bearings, effectively save maintenance costs, and ensure the smooth operation of the production device.

4) The components of the present invention can be disassembled, assembled and replaced with low cost and suitable for popularization and use.

Description of the drawings

Figure 1 is a schematic diagram of the structure of the present invention;

Figure 2 is a schematic diagram of the explosive split structure of the present invention;

Figure 3 is a schematic diagram of a T-shaped three-way explosion split structure;

Figure 4 is a front view of the inner threaded button;

Figure 5 is a sectional view of the oil drain column;

Figure 6 is a schematic diagram of the clamped state of the transition joint and the wire rope;

Figure 7 is a schematic diagram of an enlarged structure of the box cover;

Figure 8 is a schematic diagram of the installation of the present invention.

In the picture: 1. T-shaped tee, 2. Wire joint, 3. Oil drain column, 4. Oil pipe, 5. Refueling nozzle, 6. Transition joint, 7. Wire rope, 8. Hose, 9. Recovery box, 10. Nylon rope, 11, main pipe, 12, branch pipe, 13, raised ring, 14, inner threaded fastener, 15, snap ring, 16, ring baffle, 17, first round pipe joint, 18, first nozzle, 31. Center column, 32, rubber sleeve, 33, limit ring, 34, through hole I, 41, inner wire tubing joint, 42, outer wire tubing joint, 61, retaining ring, 71, clamp head, 91, box body , 92, box cover, 93, second round pipe joint, 94, fixed post, 95, through hole Ⅲ.

detailed description

Examples:

As shown in Figures 1 to 8, a special fuel filler pipe for air-cooled motors includes a T-shaped three-way component and an oil drain component;

The T-shaped tee assembly includes a T-shaped tee 1, a pair of wire joints 2 and a first round pipe joint 17. The T-shaped tee 1 includes a main pipe 11 and a branch pipe 12 vertically connected to the center of the main pipe 11. The two ends of the main pipe 11 are a first nozzle 18 and a second nozzle. The outer edge of the first nozzle 18 and the outer edge of the branch pipe 12 are provided with a convex ring 13. The main pipe 11 is close to the outer wall of the first nozzle 18 and The outer wall of the branch pipe 12 is sleeved with an inner threaded buckle 14. The inner threaded buckle 14 is provided with a snap ring 15 on the inner wall near the center of the T-shaped tee 1. The outer diameter of the raised ring 13 is smaller than the inner diameter of the inner threaded buckle 14 and larger than the snap ring 15 Inner diameter, the convex ring 13 can restrict the inner thread 14 to move out of the T-shaped tee 1. Both ends of the threaded joint 2 are provided with external threads, and one end of the threaded joint 2 is connected to the nozzle of the branch pipe 12 and is inside the outer wall Threaded 14 threaded connection. The second nozzle is provided with a ring-shaped baffle 16, the ring-shaped baffle 16 and the T-shaped tee 1 are integrally formed, the outer center of the ring baffle 16 is connected to the first circular pipe joint 17, and the first circular tube The joint 17 penetrates the main pipe 11 through the central hole of the annular baffle 16,

The oil drain assembly includes an oil drain column 3, an oil pipe 4, a fuel nozzle 5, a transition joint 6, a steel wire 7, a hose 8, a nylon rope 10 and a recovery box 9.

The two ends of the oil pipe 4 are respectively provided with an inner wire oil pipe joint 41 and an outer wire oil pipe joint 42. The inner wire oil pipe joint 41 is connected to the fueling nozzle 5 through a transition joint 6, and the oil inlet of the transition joint 6 is provided with an inner wire thread , The oil outlet of the transition joint 6 is provided with an external thread, the oil outlet of the refueling nozzle 5 is provided with an external thread, the oil outlet of the refueling nozzle 5 is threadedly connected to the oil inlet of the transition joint 6, and the transition joint 6 The oil outlet is threadedly connected to the inner threaded tubing joint 41, the outer threaded tubing joint 42 is connected to the first nozzle 18 and is threadedly connected with the inner threaded fastener 14 on the outer wall of the transition joint 6. A retaining ring 61 is provided in the center of the inner wall of the transition joint 6. The inner diameter of the oil pipe 4 is the same as the inner diameter of the main pipe 11.

The recycling box 9 includes a box body 91, a box cover 92, and a second round pipe joint 93. The box body 91 is threadedly connected with the box cover 92. The bottom center of the box body 91 is provided with a through hole II. A second round pipe joint 93 is connected to the outside of the center of the bottom of 91. The second round pipe joint 93 penetrates the inside of the box body 91 through the through hole II; the inner wall of the box cover 92 is provided with a fixing column 94 on the side of the fixing column 94 The wall is provided with a through hole Ⅲ 95,

The oil drain column 3 includes a center column 31 and a rubber sleeve 32. The center column 31 is respectively provided with raised stop rings 33 near the two ends, and the rubber sleeve 32 is sleeved on the center column 31. The outer diameter of the rubber sleeve 32 is larger than the outer diameter of the limit ring 33, the outer diameter of the rubber sleeve 32 is matched with the inner diameter of the main pipe 11, and the side wall of the center column 31 is provided with a through hole. Ⅰ34. The oil drain column 3 is arranged inside the main pipe 11 and blocks the second nozzle. The central column 31 is provided with a through hole Ⅰ34 and one end passes through the first circular pipe joint 17,

One end of the nylon rope 10 passes through the through hole I 34 to be bound to the central post 31, and the other end passes through the hose 8, the second round pipe joint 93, the box body 91 and the through hole III 95 in turn, then is bound to the fixed post 94 and the excess part The nylon rope 10 is wound on the fixed post 94, one end of the hose 8 is sleeved with the first round pipe joint 17, and the other end is sleeved with the second round pipe joint 93. One end of the wire rope 7 is provided with a cylindrical chuck 71, which is clamped on the stop ring 61 of the transition joint 6, and the other end of the wire rope 7 passes through the oil pipe 4 and is fixedly connected to the central column 31.

For specific use, take the main motor of the axial fan of an 11KW air cooler as an example, fasten the wire joint 2 at the motor fueling nozzle, hang the oil pipe 4 and the hose 8 on the protective net of the axial fan, and fix it. Then add grease to the motor through the grease nipple 5. After the end, the grease will remain in the oil pipe 4. At this time, the remaining grease in the oil pipe 4 needs to be discharged. The specific operation is: remove the transition joint 6 from the oil pipe 4. At this time, the fueling nozzle 5 and the transition joint 6 are still connected, and the transition joint 6 is pulled. Since the clip 71 of the wire rope 7 is stuck on the stop ring 61 of the transition joint 6, the wire rope 7 will be pulled when the transition joint 6 is pulled. The wire rope 7 pulls the oil drain column 3 out of the main pipe 11 and the oil pipe 4 to drain the grease remaining in the oil pipe 4 and recover it. Then open the box cover 92, pull the box cover 92 to pull the drain column 3 through the nylon rope 10, pull the drain column 3 back into the main pipe 11 and block the second nozzle, and then wrap the excess nylon rope 10 around the fixed On the column 94, insert the fixed column 94 into the box body 91, cover the box cover 92, and finally connect the transition joint 6 to the inner wire tubing joint 41.

Taking the above-mentioned ideal embodiment according to the present invention as enlightenment, through the above-mentioned description content, relevant workers can make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the content of the description, and its technical scope must be determined according to the scope of the claims.

In the description of the present invention, it should be understood that the terms indicating the orientation or the positional relationship are based on the orientation or the positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying what is meant. The device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

Claims

A special fuel filler pipe for an air-cooled motor, which is characterized in that it comprises a T-shaped three-way component and an oil drain component;

The T-shaped tee assembly includes a T-shaped tee and a wire joint. The T-shaped tee includes a main pipe and a branch pipe connected perpendicularly to the center of the main pipe. Both ends of the main pipe are a first nozzle and a second nozzle. , One end of the wire joint is movably connected with the branch pipe,

The oil drain assembly includes an oil drain column, an oil pipe, a fuel nozzle, a transition joint, a steel wire rope, a nylon rope and a recovery box,

One end of the oil pipe is connected to the first nozzle, and the other end is connected to a fueling nozzle through a transition joint. The oil pipe is movably connected to the transition joint. The center of the inner wall of the transition joint is provided with a retaining ring. The inner diameter of the oil pipe is the same as the inner diameter of the main pipe.

The recycling box includes a box body and a box cover, the box body is movably connected with the box cover, the center of the bottom of the box body is provided with a through hole II, the center of the inner wall of the box cover is provided with a fixed column, and the side wall of the fixed column With through hole Ⅲ,

The oil drain column includes a central column and a rubber sleeve, the rubber sleeve is sleeved on the central column, the outer diameter of the rubber sleeve is adapted to the inner diameter of the T-shaped three-way main pipe, and the side wall of one end of the central column is provided with a through hole Ⅰ. The oil drain column is arranged inside the T-shaped three-way main pipe and blocks the second nozzle. The central column is provided with a through hole I and one end passes through the second nozzle.

One end of the nylon rope passes through the through hole I to be bound to the central post, and the other end passes through the box body and the through hole III to be bound to the fixed post. One end of the steel wire rope is provided with a cylindrical clamping head, the clamping head is clamped on the transition joint baffle ring, and the other end of the steel wire rope is connected to the central column after passing through the oil pipe.
The special fuel filler pipe for air-cooled motors according to claim 1, characterized in that: the outer edge of the first nozzle and the outer edge of the branch pipe are provided with convex rings, and the main pipe is sleeved near the outer wall of the first nozzle and the outer wall of the branch pipe. The inner threaded fastener is provided with a snap ring on the inner wall of one end near the center of the T-shaped tee. The outer diameter of the protruding ring is smaller than the inner diameter of the inner threaded fastener and larger than the inner diameter of the snap ring. Thread, one end of the threaded joint is connected to the nozzle of the branch pipe and is threadedly connected with the inner thread.
The special fueling pipe for air-cooled motors according to claim 1, characterized in that: both ends of the fuel pipe are respectively provided with an inner wire oil pipe joint and an outer wire oil pipe joint, and the inner wire oil pipe joint is connected to the refueling nozzle through a transition joint. The oil inlet of the transition joint is provided with an internal thread, the oil outlet of the transition joint is provided with an external thread, the oil outlet of the fuel filler is provided with an external thread, and the oil outlet of the fuel filler is threadedly connected to the oil inlet of the transition joint The oil outlet of the transition joint is threadedly connected to the inner threaded oil pipe joint, and the outer threaded oil pipe joint is butted with the first pipe port and is threadedly connected with the inner threaded buckle.
The special fuel filler pipe for air-cooled motors according to claim 1, characterized in that: the central column is respectively provided with raised limit rings at positions close to both ends, and the rubber sleeve is sleeved between the two limit rings, The outer diameter of the rubber sleeve is larger than the outer diameter of the limit ring.
The special fuel filler pipe for air-cooled motors according to claim 1, wherein the T-shaped three-way assembly further comprises a first round pipe joint, the second pipe port is provided with an annular baffle, and the outer side of the annular baffle The center is connected with a first round pipe joint, the first round pipe joint penetrates the main pipe through the central hole of the annular baffle, and one end of the central column is provided with a through hole I passing through the first round pipe joint;

The recovery box further includes a second round pipe joint, the outer center of the bottom of the box body is connected to a second round pipe joint, and the second round pipe joint penetrates the inside of the box body through the through hole II; the oil drain assembly further includes A hose, one end of the hose is sleeved with a first round pipe joint, and the other end is sleeved with a second round pipe joint;

After one end of the nylon rope is tied to the central post, the other end is passed through the hose, the second round pipe joint, the box body and the through hole III in turn before being tied to the fixed post.
The special fuel filler pipe for air-cooled motors according to claim 1, wherein the box body is threadedly connected with the box cover.