CN212137497U - Online oil discharge device of motor - Google Patents
Online oil discharge device of motor Download PDFInfo
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- CN212137497U CN212137497U CN202021193606.9U CN202021193606U CN212137497U CN 212137497 U CN212137497 U CN 212137497U CN 202021193606 U CN202021193606 U CN 202021193606U CN 212137497 U CN212137497 U CN 212137497U
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Abstract
The utility model provides an online oil extraction device of motor, includes the fixed plate of fixed connection in motor outer oil cover below, online oil extraction device of motor still includes: a rotary oil baffle plate rotating relative to the fixed plate; the automatic suction part is used for forming a relatively closed space with the outer oil cover after the rotary oil baffle rotates to the horizontal position; and the baffle operating rod is used for completing the opening and closing control of the rotary oil baffle. The online oil discharge device for the motor can reduce the labor intensity of workers, improve the working efficiency, reduce the maintenance cost of the motor, improve the economic benefit of enterprises and has wide popularization significance in the motor manufacturing industry and the motor maintenance industry.
Description
Technical Field
The utility model belongs to the technical field of the lubricated technique of machine and specifically relates to an online oil extraction device of motor is related to.
Background
The lubrication of the motor bearing is an important problem about the performance of the motor bearing, when the motor runs for 1 to 3 years, the lubricating grease can be aged and blackened, the lubricating effect is poor, but the replacement of the bearing is not necessary. In the case of this, the following can be adopted:
the conventional method is to off-line check the bearing, measure whether the bearing interval is good and whether the bearing sound is normal, and if the bearing does not need to be replaced, replace the lubricating grease and then install the bearing back to the motor. Taking a 132KW motor as an example, the motor is offline for replacing lubricating grease, and a 2-3 bit electrician is required to disassemble the front end cover and the rear end cover of the motor to clean the bearing and replace the lubricating grease or the bearing; 1-2 fitters detach the motor back wheel and the motor anchor, connect the motor back wheel, align and fasten the anchor, and the 1-position gas welder is needed for heating when the spare wheel or the bearing is not detached; 1 forklift worker transports 2 times back and forth; if the forklift is inconvenient to enter and exit, 1 lifting worker and a crane are needed to cooperate. The calculation shows that the actual off-line replacement of the grease for 1 132KW motor needs 4-8 people, and the replacement is completed within 1 day.
In order to reduce maintenance time, some enterprises directly replace new bearings in a crisp and easy manner, so that great waste of the bearings is caused, the number of motor maintenance personnel is large, and the maintenance cost is high.
At present, motors used in the market are designed with online oil filling holes, but oil discharging holes are small, oil discharging is not smooth after oil filling, the temperature of a bearing is too high, and the motors cannot normally run; some motors are only provided with oil filling holes and no oil discharging holes, only oil can be filled, oil cannot be discharged, and the motors need to replace lubricating grease offline; some motors are designed with larger oil drain holes, but the baffle plates of the oil drain holes are fixed by bolts, the fan cover of the motor at the non-driving end cannot open the baffle plates of the oil drain holes on line to discharge waste lubricating grease, and the bolts are fixed to the baffle plates of the oil drain holes at the driving end to drain oil when the motor runs, so that the operation is dangerous; some motors are designed to have longer oil discharge pipelines, oil discharge is not smooth enough, bearings are easy to overheat after oil is added, and more metal materials are consumed.
Disclosure of Invention
An object of the utility model is to overcome the shortcoming that exists among the prior art, provide an online oil extraction device that can realize changing motor bearing lubricating grease on line, the device only needs 2 people 0.5 hours time to accomplish the work of changing oil under the not high condition of motor bearing temperature, practices thrift manpower and materials greatly. The technical scheme is as follows: the utility model provides an online oil discharge device of motor, includes the fixed plate of fixed connection in motor outer oil cover below, its characterized in that: the online oil discharge device of the motor further comprises: a rotary oil baffle plate rotating relative to the fixed plate; the automatic suction part is used for forming a relatively closed space with the outer oil cover after the rotary oil baffle rotates to the horizontal position; and the baffle operating rod is used for completing the opening and closing control of the rotary oil baffle.
The technical characteristics of the utility model are also: the automatic attraction parts are permanent magnets, and the number of the permanent magnets is at least two, and the permanent magnets are respectively arranged on two corners of the outer side of the rotary oil baffle.
The technical characteristics of the utility model are also: the automatic attraction part is a permanent magnet which is arranged at the bottom of the outer oil cover.
The technical characteristics of the utility model are also: and an operating handle is also arranged on the baffle operating rod.
The technical characteristics of the utility model are also: the rotary oil baffle is connected to the fixed plate through a hinge.
The technical characteristics of the utility model are also: and the fixed plate is welded and fixed below an external oil cover of the motor.
The technical characteristics of the utility model are also: the fixing plate is adhered to the lower part of the external oil cover of the motor by metal glue.
The beneficial effects of the utility model reside in that:
1) the online oil discharge device for the motor can realize online replacement of lubricating grease under the condition that the motor does not stop, and the running temperature of a bearing of the motor can be controlled below 70 ℃. Compared with offline replacement of motor lubricating grease, the service life of the bearing can be effectively prolonged by 10000-20000 hours or even longer.
2) The motor online oil changing device is provided with the safety baffle, so that the situation that the motor runs into high-speed rotating equipment after an oil discharge baffle of the motor is opened can be avoided, and the safety of the motor online lubricating grease changing operation is ensured; the safety baffle controls the opening angle of the oil baffle plate of the explosion-proof motor to be within 45 degrees, and the requirement of the explosion-proof performance of the explosion-proof motor is completely met.
3) Compared with the traditional online oil discharge device, the online oil discharge device using the motor can reduce the temperature of the motor bearing by 10-25 ℃, and has good use effect.
4) The online oil discharge device for the motor can reduce the labor intensity of workers, improve the working efficiency, reduce the maintenance cost of the motor, improve the economic benefit of enterprises and has wide popularization significance in the motor manufacturing industry and the motor maintenance industry.
Drawings
Fig. 1 is oil extraction hole structure schematic diagram, fig. 2 is the utility model discloses structure schematic diagram, fig. 3 is that explosion-proof machine rotates and keeps off oil board aperture scope schematic diagram, fig. 4 is that explosion-proof machine rotates and keeps off oil board aperture scope schematic diagram, wherein 1 is the fixed plate, 2 is the rotation and keeps off the oil board, 3 is safety shield, 4, 5 are the permanent magnet, 6 is the baffle action bars, 7 is operating handle, 8 is end cover fixing bolt hole, 9 is the end cover boss, 10 is the axle sealing member, 11 is the shaft hole, 12 is motor outer oil cover, 13 is the oil extraction pore.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
On the premise of ensuring that the fixed size of the external oil cover 12 of the motor is not changed, the device is provided with square oil discharge holes 2 (shown in figure 1) of 50-60mm multiplied by 12-15mm at the bottom of an oil storage chamber of the external oil cover 12, so that the motor can discharge oil on line smoothly.
A fixing plate 1 is arranged below the outer oil cover, and the fixing plate 1 is arranged outside an outer oil cover 12 of the motor in a welding or metal glue bonding mode. The rotary oil baffle 2 is connected with the fixed plate 1 in a folding mode, and in order to prevent the rotary oil baffle 2 from colliding with motor dragging equipment when rotating, a safety baffle 3 is designed on the fixed plate 1 to limit the rotary oil baffle 2 to move in a horizontal and vertical space at the bottom of the outer oil cover 12. Two permanent magnets are arranged at 2 corners of the rotary oil baffle 2 or 2 permanent magnets are fixedly embedded at corresponding positions at the bottom of the outer oil cover and are used for being fixedly attracted with the bottom of the outer oil cover to form a sealed bearing chamber when the rotary oil baffle 2 rotates to a horizontal position, and the bottom surfaces of the rotary oil baffle 2 and the outer oil cover 12 are as flat and smooth as possible to ensure the sealing effect. A baffle operating rod 6 is arranged on the rotary oil baffle 2, and an operating handle 7 is designed to facilitate opening and closing of the rotary oil baffle.
The working principle is as follows:
1) before the motor is ready for oil change, the rotary oil baffle 2 is opened to prepare for waste grease discharge. When the motor is running, new lubricating grease is added, and the waste lubricating grease is gradually discharged from the oil discharge hole 13. When the motor is filled with new lubricating grease, the temperature of the motor bearing is measured, the temperature of the motor bearing can rise slowly, the operating handle 7 is lifted to the horizontal position after the temperature of the bearing is stabilized at about 70 ℃ or is reduced, and the oil baffle plate 2 is rotated to close the oil outlet 13 by utilizing the suction force of the permanent magnets 4 and 5.
2) If the bearing temperature rises too fast due to the fact that the speed of adding lubricating grease into the driving end of the motor is too fast, the speed of adding the lubricating grease is slowed or the lubricating grease is stopped adding, the lubricating grease is pulled outwards at the oil discharging hole 13 by using hard paperboard articles, the rotating motor shaft is touched with attention, the temperature of the motor bearing is gradually reduced along with the continuous outward discharge of the lubricating grease, and the lubricating grease is continuously replaced on line after the temperature is reduced until new lubricating grease appears in the oil discharging hole. The non-driving end is provided with a cooling fan which is matched with the smoothly designed oil discharge hole 13, so that the overheating phenomenon of a motor bearing can not occur.
3) In order to prevent external gas from entering the interior of the explosion-proof motor through the oil discharge hole 13 to cause the explosion loss of the motor, the moving range of the oil baffle plate rotated by the explosion-proof motor is controlled within 45 degrees (see figure 4), the bottom of an outer oil cover of the motor is always filled with lubricating grease, and the lubricating grease at the bottom of the outer oil cover blocks the external explosive gas from entering the interior of the motor.
When the motor is started, if abnormal sound or vibration exceeds the standard, the motor cannot be stopped immediately and quit maintenance due to production requirements, lubricating grease is frequently replaced on line through the online oil discharging device, the motor bearing has a certain repairing function, when the lubricating grease is added and the color of the lubricating grease is checked to be consistent, the damage phenomenon of the bearing is repaired, the abrasion condition of the bearing is reduced to a normal level, and the motor bearing is replaced by selecting the motor after maintenance conditions are met.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or replacements made by those skilled in the art within the scope of the present invention also belong to the protection scope of the present invention.
Claims (7)
1. The utility model provides an online oil discharge device of motor, includes the fixed plate of fixed connection in motor outer oil cover below, its characterized in that: the online oil discharge device of the motor further comprises:
a rotary oil baffle plate rotating relative to the fixed plate;
the automatic suction part is used for forming a relatively closed space with the outer oil cover after the rotary oil baffle rotates to the horizontal position;
and the baffle operating rod is used for completing the opening and closing control of the rotary oil baffle.
2. An in-line oil drain device for a motor according to claim 1, wherein: the automatic attraction parts are permanent magnets, and the number of the permanent magnets is at least two, and the permanent magnets are respectively arranged on two corners of the outer side of the rotary oil baffle.
3. An in-line oil drain device for a motor according to claim 1, wherein: the automatic attraction part is a permanent magnet which is arranged at the bottom of the outer oil cover.
4. An in-line oil drain device for a motor according to claim 1, wherein: and an operating handle is also arranged on the baffle operating rod.
5. An in-line oil drain device for a motor according to claim 1, wherein: the rotary oil baffle is connected to the fixed plate through a hinge.
6. An in-line oil drain device for a motor according to claim 1, wherein: and the fixed plate is welded and fixed below an external oil cover of the motor.
7. An in-line oil drain device for a motor according to claim 1, wherein: the fixing plate is adhered to the lower part of the external oil cover of the motor by metal glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021193606.9U CN212137497U (en) | 2020-06-24 | 2020-06-24 | Online oil discharge device of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021193606.9U CN212137497U (en) | 2020-06-24 | 2020-06-24 | Online oil discharge device of motor |
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| Publication Number | Publication Date |
|---|---|
| CN212137497U true CN212137497U (en) | 2020-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021193606.9U Active CN212137497U (en) | 2020-06-24 | 2020-06-24 | Online oil discharge device of motor |
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| CN (1) | CN212137497U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112628295A (en) * | 2021-01-07 | 2021-04-09 | 庞忠 | Method for online replacement of lubricating grease of motor bearing |
-
2020
- 2020-06-24 CN CN202021193606.9U patent/CN212137497U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112628295A (en) * | 2021-01-07 | 2021-04-09 | 庞忠 | Method for online replacement of lubricating grease of motor bearing |
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