CN213595280U - Main shaft lubricating device of impeller powder feeder - Google Patents
Main shaft lubricating device of impeller powder feeder Download PDFInfo
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- CN213595280U CN213595280U CN202021859086.0U CN202021859086U CN213595280U CN 213595280 U CN213595280 U CN 213595280U CN 202021859086 U CN202021859086 U CN 202021859086U CN 213595280 U CN213595280 U CN 213595280U
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Abstract
The utility model provides a main shaft lubricating device of an impeller powder feeder, which comprises a main shaft bushing, a plurality of oil holes and a plurality of oil holes, wherein the outer peripheral surface of the main shaft bushing is fixedly arranged in an inner hole of a main shaft box; oil leakage preventing sealing gaskets arranged in a plurality of oil leakage preventing sealing grooves formed on the inner peripheral surface of the main shaft bushing; a plurality of spindle lubricating surfaces formed by separating the inner peripheral surface of the spindle bush by oil storage sealing gaskets in a plurality of oil storage sealing grooves formed on the inner peripheral surface of the spindle bush between the oil hole and the oil leakage preventing sealing groove; a plurality of channels which run through the oil hole and the plurality of oil storage sealing grooves and control the inlet and outlet of oil in the oil storage sealing grooves by the deformation of the oil storage sealing washer; the oil storage sealing groove is formed on the basis of a plurality of independent channels to lubricate a plurality of spindle lubricating surfaces, namely part of the outer peripheral surface of the spindle, and even if the gap between the outer peripheral surface of the spindle and the inner peripheral surface of the spindle bushing is too small, the oil does not influence the outflow of the oil from the oil storage sealing groove and lubricate the outer peripheral surface of the spindle.
Description
Technical Field
The utility model relates to an impeller powder feeder field, especially a main shaft lubricating arrangement of impeller powder feeder.
Background
The impeller powder feeder is a main device for supplying boiler fuel to a storage type powder preparation system of a thermal power plant, is driven by a variable-frequency speed-regulating motor, and is used for feeding powder by a scraper feeding impeller on a worm gear transmission main shaft;
regarding lubrication of the spindle, national patent publication No. CN207431282U, a spindle bush, a Z-axis structure and a machine tool, specifically,
the oil inlet hole and the oil outlet hole are both positioned between the first annular groove and the second annular groove. The spindle bush is including the axle sleeve body and flange platform, the flange platform connect in the bottom of the axle sleeve body, a plurality of connecting portion are located on the flange platform, first annular groove with the second annular groove is located on the lateral wall of the axle sleeve body. One end of the flange platform is connected to the outer side wall of the shaft sleeve body, the other end of the flange platform extends outwards along the radial direction of the shaft sleeve body and is protruded, and the flange platform is annular. The first annular groove and the second annular groove are both inwards recessed in a rectangular shape along the radial direction of the shaft sleeve body. The diameter of the outer wall of the shaft sleeve body is matched with the diameter of a main shaft sleeved by the shaft sleeve body. The first annular groove is located between the flange platform and the second annular groove, the number of the first annular groove is at least one, and the number of the second annular groove is at least two. The oil inlet hole is located below the oil outlet hole. The spindle box comprises a spindle box body, a spindle and a spindle bushing, wherein the spindle bushing is connected to the spindle box body through a connecting portion and inserted into the spindle box body, a plurality of first sealing rings are arranged between the spindle bushing and the spindle box in a pressing mode and are respectively located in a first annular groove and a second annular groove, the bottom of the spindle is connected to the spindle bushing, and the top of the spindle is inserted into the spindle bushing. The outer side wall of the main shaft is provided with a spiral groove, a cooling oil channel is formed between the spiral groove and the main shaft bushing, the oil inlet hole and the oil outlet hole are communicated with the cooling oil channel, the main shaft box is provided with two oil pipe joints, and the two oil pipe joints are respectively communicated with the oil inlet hole and the oil outlet hole. The outer side wall of the main shaft is provided with a third annular groove and a fourth annular groove, the fourth annular groove is located above the third annular groove, the spiral groove is located between the third annular groove and the fourth annular groove, the main shaft bushing and the main shaft are provided with a plurality of second sealing rings in a pressing mode, and the second sealing rings are located in the third annular groove and the fourth annular groove respectively.
Regarding the spindle bushing for spindle lubrication, the inner circumferential surface of the spindle bushing between the first seal ring and the second seal ring is used as the inner circumferential surface of the seal to lubricate the outer circumferential surface of the spindle, and the lubricating oil is required to cover the entire inner circumferential surface of the seal, that is, the lubricating oil reaches the entire outer circumferential surface of the spindle to lubricate the spindle bushing.
Disclosure of Invention
The technical problem to be solved by the utility model,
however, as in the background art, since the front and rear ends of the integral spindle are sealed to form a complete lubrication space for lubricating the spindle in the prior art, the gap between the outer peripheral surface of the spindle and the inner peripheral surface of the spindle bushing is too small, so that the lubricant cannot reach the outer peripheral surface of the spindle, and the lubrication of the spindle is not uniform.
The design objective of the utility model is, in view of above-mentioned problem, provide and form a complete lubricated space partition a plurality of lubricated face, all be provided with the passageway in independent passageway edge main shaft bush based on every lubricated face and lubricate, that is to say that replaced in the past with main shaft one end to the lubricated axial lubrication direction of the main shaft other end lubrication of main shaft outer peripheral face, the better main shaft lubricating arrangement of impeller powder feeder of lubricated effect.
The technical solution for solving the technical problem is that,
the main shaft lubricating device of impeller powder feeder includes main shaft lining with outer peripheral surface fixed in the inner hole of main shaft box,
a plurality of oil holes penetrating between the inner circumferential surface of the main shaft bushing and the outer circumferential surface of the main shaft bushing;
oil leakage preventing sealing gaskets arranged in a plurality of oil leakage preventing sealing grooves formed on the inner peripheral surface of the main shaft bushing;
a plurality of spindle lubricating surfaces formed by separating the inner peripheral surface of the spindle bush by oil storage sealing gaskets in a plurality of oil storage sealing grooves formed on the inner peripheral surface of the spindle bush between the oil hole and the oil leakage preventing sealing groove;
and the plurality of channels run through the oil hole and the plurality of oil storage sealing grooves and control the oil in and out of the oil storage sealing grooves by the deformation of the oil storage sealing washer.
The oil storage sealing groove is formed on the basis of the independent channels to lubricate a plurality of spindle lubricating surfaces, namely part of the spindle outer circumferential surface, even if the gap between the spindle outer circumferential surface part and the spindle bushing inner circumferential surface is too small, the oil flowing out from the oil storage sealing groove is not influenced, the spindle outer circumferential surface is lubricated, and the lubrication is more uniform.
Preferably, an outer oil groove penetrating the oil hole is formed on the outer peripheral surface of the spindle bush inward in the radial direction of the spindle bush.
Preferably, an outer oil groove penetrating the oil hole is formed from the outer peripheral surface of the spindle bush inward in the radial direction of the spindle bush.
Preferably, 4 oil holes are uniformly formed in the main shaft bushing;
the outer oil groove forms oil inlet channels among 3 oil holes;
an outlet is formed by externally connecting a connecting pipe on the other 1 oil hole.
Preferably, the number of the oil leakage preventing seal grooves on the main shaft bushing is 2.
Preferably, the oil storage seal grooves on the main shaft bushing are formed with 4, and the distances between the adjacent 2 oil storage seal grooves are the same.
Preferably, the distance between the port of the channel on the oil storage sealing groove and the bottom surface of the oil storage sealing groove parallel to the axis of the spindle bushing is one half of the line diameter of the oil storage sealing gasket.
In this application, through arranging the oil storage seal ring in forming a plurality of oil storage seal grooves on the main shaft bush inner peripheral surface between oilhole and the oil leakage seal groove in and separate into a plurality of main shaft lubrication face with the main shaft bush inner peripheral surface and can make oil more even lubricate the main shaft outer peripheral surface, avoided among the prior art because the main shaft outer peripheral surface is close apart from the main shaft bush inner peripheral surface and make lubricating oil can't be to this partial lubricated phenomenon, the main shaft outer peripheral surface is separated into 4 main shaft lubrication faces, oil storage seal ring between the adjacent 2 main shaft lubrication faces all contacts with the main shaft outer peripheral surface promptly the contact of main shaft bush and main shaft is more stable, form independent lubrication space between the main shaft outer peripheral surface between the adjacent 2 main shaft lubrication faces, the lubrication effect is better.
Drawings
FIG. 1 is a schematic structural view of the present invention before use;
fig. 2 is a schematic structural view of a part of the main shaft bushing before oil enters the oil storage sealing groove of the utility model;
fig. 3 is a schematic structural view of a part of the main shaft bushing when oil enters the oil storage sealing groove of the utility model;
fig. 4 is the utility model discloses prevent the structural schematic diagram of draining seal groove.
Detailed Description
The embodiments of the present invention will be further described with reference to the accompanying drawings so as to facilitate the further understanding of the present invention by those skilled in the art, and do not limit the right thereto.
a plurality of oil holes 4 penetrating between the inner circumferential surface 2 of the main shaft bush and the outer circumferential surface 3 of the main shaft bush;
an oil leakage preventing seal gasket 6 disposed in a plurality of oil leakage preventing seal grooves 5 formed on the inner peripheral surface 2 of the main shaft liner;
a plurality of spindle lubricating surfaces 9 formed by partitioning the spindle bush inner peripheral surface 2 by oil-storing seal washers 8 disposed in a plurality of oil-storing seal grooves 7 formed in the spindle bush inner peripheral surface 2 between the oil hole 4 and the oil-leakage preventing seal groove 5, the oil-storing seal grooves 7 being formed in substantially rectangular grooves and surrounding a complete inner peripheral portion of the spindle bush inner peripheral surface 2;
and a plurality of channels 10 which penetrate through the oil hole 4 and the plurality of oil storage sealing grooves 7 and control the oil in and out of the oil storage sealing grooves 7 by the deformation of the oil storage sealing washer 8, and the specific channel 10 forming method can be formed by one-step casting through the guidance of a die in the process of casting the main shaft bushing 1.
In embodiment 2, the main shaft lubricating device of the impeller powder feeder according to embodiment 1 has an outer oil groove 11 formed in the outer peripheral surface of the main shaft bushing so as to penetrate the oil hole 4 inward in the radial direction of the main shaft bushing 1. The space between the outer oil groove 11 and the inner circumferential surface of the inner hole of the spindle box forms a circular cavity, namely a space for containing lubricating oil, an inlet for filling oil into the outer oil groove 11 can be formed by forming a pore which penetrates through the inner hole of the spindle box on the inner circumferential surface of the inner hole of the spindle box, and an oil inlet and outlet direction is formed by matching a connecting pipe externally connected to 1 oil hole 4 as an outlet.
In the spindle lubricating device of the impeller powder feeder in embodiment 3 or 2, 4 oil holes 4 are uniformly formed in the spindle bush 1;
the outer oil groove 11 forms an oil inlet passage 10 between 3 of the oil holes 4;
an outlet is formed by externally connecting a connecting pipe on the other 1 oil hole 4, and the externally connecting pipe is not shown.
In embodiment 4, in the spindle lubricating device of the impeller powder feeder according to embodiment 1, 2 oil drain prevention seal grooves 5 are formed in the spindle bush 1.
Specifically, 4 oil drain prevention seal grooves 5 may be provided in the spindle bush 1, that is, 2 more oil drain prevention seal grooves may be provided in the inner circumferential surface of the front end of the spindle bush 1 to seal 1 end of the inner circumferential surface 2 of the spindle bush.
In embodiment 5, in the spindle lubricating device of the impeller powder feeder according to embodiment 1, the oil storage seal grooves 7 in the spindle bushing 1 are formed in 4, and the distances between two adjacent oil storage seal grooves 7 are the same.
In embodiment 6, in the spindle lubricating apparatus of the impeller powder feeder according to embodiment 1, a distance between the port of the passage 10 located in the oil storage seal groove 7 and the bottom surface of the oil storage seal groove 7 parallel to the axis of the spindle bushing 1 is one-half of the linear diameter of the oil storage seal gasket 8.
It should be noted that the principle of the lubricating process of the main shaft lubricating device of the impeller powder feeder is specifically the following two states;
based on the state of the main shaft liner 1 before lubrication when the main shaft is not attached to the main shaft liner 1,
at this time, the oil storage sealing washer 8 positioned in the oil storage sealing groove 7 is in an undeformed state, that is, the port of the channel 10 on the oil storage sealing groove 7 is positioned between the bottom surface of the oil storage sealing groove 7 and the oil storage sealing washer 8;
when the spindle is installed on the inner peripheral surface of the main bearing sleeve, the oil storage sealing washer 8 starts to elastically deform due to the extrusion of the outer peripheral surface of the spindle, that is, the oil storage sealing washer 8 moves outwards along the inner wall of the oil storage sealing groove 7 and enables the port of the channel 10 on the oil storage sealing groove 7 to move due to the oil storage sealing washer 8, so that the oil flowing out through the channel 10 can flow from the oil storage sealing groove 7 to the outer peripheral surface of the spindle to lubricate the spindle lubricating surface 9, namely the outer peripheral surface of the spindle,
meanwhile, oil is transmitted between the adjacent 2 channels 10 through the shared 1 oil storage sealing groove 7 due to the elastic deformation of the oil storage sealing washer 8 between the channels 10, and all the channels 10 can be flowed through by the oil in the outer oil groove 11 and lubricate each 1 spindle lubricating surface 9 in the same way, so that the complete lubrication of the outer peripheral surface of the spindle is finally realized, and the spindle lubricating device is reasonable in structural design and uniform in lubrication.
Claims (6)
1. Impeller powder feeder's main shaft lubricating arrangement, its characterized in that: comprises a main shaft bushing with the peripheral surface fixedly arranged in an inner hole of a main shaft box, and is provided with,
a plurality of oil holes penetrating between the inner circumferential surface of the main shaft bushing and the outer circumferential surface of the main shaft bushing;
oil leakage preventing sealing gaskets arranged in a plurality of oil leakage preventing sealing grooves formed on the inner peripheral surface of the main shaft bushing;
a plurality of spindle lubricating surfaces formed by separating the inner peripheral surface of the spindle bush by oil storage sealing gaskets in a plurality of oil storage sealing grooves formed on the inner peripheral surface of the spindle bush between the oil hole and the oil leakage preventing sealing groove;
and the plurality of channels run through the oil hole and the plurality of oil storage sealing grooves and control the oil in and out of the oil storage sealing grooves by the deformation of the oil storage sealing washer.
2. The main shaft lubricating device of the impeller powder feeder according to claim 1, wherein: an outer oil groove penetrating the oil hole is formed on the outer peripheral surface of the main shaft bushing inward in the radial direction of the main shaft bushing.
3. The main shaft lubricating device of the impeller powder feeder according to claim 2, wherein: 4 oil holes are uniformly formed on the main shaft bushing;
the outer oil groove forms oil inlet channels among 3 oil holes;
an outlet is formed by externally connecting a connecting pipe on the other 1 oil hole.
4. The main shaft lubricating device of the impeller powder feeder according to claim 1, wherein: the main shaft bush is provided with 2 oil leakage preventing sealing grooves.
5. The main shaft lubricating device of the impeller powder feeder according to claim 1, wherein: the oil storage sealing grooves on the main shaft bushing are formed with 4 oil storage sealing grooves, and the distances between every two adjacent oil storage sealing grooves are the same.
6. The main shaft lubricating device of the impeller powder feeder according to claim 1, wherein: the distance between the port of the channel positioned on the oil storage sealing groove and the bottom surface of the oil storage sealing groove parallel to the axis of the main shaft bushing is one half of the line diameter of the oil storage sealing washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021859086.0U CN213595280U (en) | 2020-08-31 | 2020-08-31 | Main shaft lubricating device of impeller powder feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021859086.0U CN213595280U (en) | 2020-08-31 | 2020-08-31 | Main shaft lubricating device of impeller powder feeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213595280U true CN213595280U (en) | 2021-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021859086.0U Active CN213595280U (en) | 2020-08-31 | 2020-08-31 | Main shaft lubricating device of impeller powder feeder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213595280U (en) |
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2020
- 2020-08-31 CN CN202021859086.0U patent/CN213595280U/en active Active
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