CN212803705U - Grease lubrication bearing structure of centrifugal pump - Google Patents
Grease lubrication bearing structure of centrifugal pump Download PDFInfo
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- CN212803705U CN212803705U CN202020554535.4U CN202020554535U CN212803705U CN 212803705 U CN212803705 U CN 212803705U CN 202020554535 U CN202020554535 U CN 202020554535U CN 212803705 U CN212803705 U CN 212803705U
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Abstract
The utility model belongs to the technical field of lubricated bearings, in particular to a grease lubricated bearing structure of a centrifugal pump, which comprises an outer shaft sleeve and an inner shaft sleeve which is clamped and fixed inside the outer shaft sleeve; through with outer axle sleeve inner wall and outer wall respectively the coating have interior coating and the external coating of teflon material, the coating that teflon coating formed has good inadhesion, high temperature resistance, low temperature resistance, corrosion resistance, low friction wearability and not moist, can strengthen the holistic mechanical properties of outer axle sleeve and stability in use, reduce the loss that wearing and tearing caused, prolong the life of outer axle sleeve to a certain extent, the inner wall coating of axle sleeve still has the auxiliary coating of graphite alkene material including, graphite alkene has high heat conduction's heat radiation characteristic and anticorrosive nature, strengthen the connection stability between bearing and the outside work piece, the temperature that friction produced when avoiding the high-speed rotation of bearing is too high, lead to the condition that the bearing appears abnormal wear under high temperature rotation state.
Description
Technical Field
The utility model relates to a lubricated bearing technical field specifically is a centrifugal pump grease lubricated bearing structure.
Background
Centrifugal pumps operate by causing water to move centrifugally as a result of the rotation of an impeller. Before the water pump is started, the pump shell and the water suction pipe are filled with water, then the motor is started, the pump shaft drives the impeller and the water to rotate at a high speed, the water is thrown to the outer edge of the impeller and flows into a water pressing pipeline of the water pump through a flow channel of the volute-shaped pump shell, and the bearing is a necessary component of the centrifugal pump.
Chinese patent discloses a centrifugal pump grease lubrication bearing structure (grant publication No. CN 208348141U), and this patent technology is through adopting cylindric roller to set up the inner groovy in the intermediate position of roller, reduce the use of material, practice thrift the cost, be fit for being extensively promoted and use, however, the ball of this kind of structure, the inside lubricant film is changed in difficult dismouting, use a period after, if the grease of lubricant film is less, can lead to the rotation of bearing to be unsmooth, influence the normal use of centrifugal pump. Accordingly, those skilled in the art have provided a centrifugal pump grease lubrication bearing structure to solve the problems set forth in the background art described above.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a centrifugal pump grease lubrication bearing structure to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a centrifugal pump grease lubrication bearing structure, including outer axle sleeve and the fixed inner shaft sleeve of the inside block of outer axle sleeve, the outer wall coating of outer axle sleeve has the external coating, the inner wall coating of outer axle sleeve has the internal coating, the external coating with the internal coating all with outer axle sleeve bonds fixedly, the inside of inner shaft sleeve has set firmly ball installation shaft circle, the ball installation shaft circle has a plurality of to be the ball mounting groove of axial symmetric distribution, the inside block of ball mounting groove is fixed with the ball, the ball is in the inside of ball mounting groove is rotated, the inner wall of ball mounting groove and the outer wall of ball all bonds and is fixed with the lubricant coating, the inner wall bonding of inner shaft sleeve is fixed with supplementary coating.
As a further aspect of the present invention: the inner wall of undercoating has wear-resisting coating evenly coated, wear-resisting coating with the undercoating bonds fixedly, wear-resisting coating is the carborundum material.
As a further aspect of the present invention: the outer shaft sleeve and the reinforcing shaft layer are fixedly clamped between the inner shaft sleeves, and the outer shaft sleeve, the inner shaft sleeve and the reinforcing shaft layer rotate relatively.
As a further aspect of the present invention: the auxiliary coating is made of graphene.
As a further aspect of the present invention: the outer coating and the inner coating are both made of Teflon materials.
As a further aspect of the present invention: the lubricating coating is made of graphite.
As a further aspect of the present invention: the outer shaft sleeve, the inner shaft sleeve and the reinforcing shaft layer are made of steel materials.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the inner wall and the outer wall of the outer shaft sleeve are respectively coated with an inner coating and an outer coating made of Teflon materials, the coatings formed by Teflon coatings have good non-adhesiveness, high temperature resistance, low temperature resistance, corrosion resistance, low friction, wear resistance and non-wettability, the overall mechanical performance and the use stability of the outer shaft sleeve can be enhanced, the loss caused by abrasion is reduced, the service life of the outer shaft sleeve is prolonged to a certain extent, the inner wall of the inner shaft sleeve is coated with an auxiliary coating made of graphene materials, the graphene has high heat conduction heat dissipation property and corrosion resistance, the connection stability between a bearing and an external workpiece is enhanced, and the condition that the temperature generated by friction is overhigh when the bearing rotates at a high speed and abnormal abrasion of the bearing is caused under the high-temperature rotation state is avoided;
2. in addition, the lubricant coating of one deck graphite material sets firmly respectively through the outer wall at the ball and the inner wall of ball mounting groove, can strengthen the rotational stability of ball in the ball mounting groove, need not set up the lubricant coating in the ball mounting groove and also can make the ball take place relative slip with the ball mounting groove in the ball mounting groove, play fine antifriction effect, replace the effect that the intraformational grease of lubricant played solid lubricant, and need not change regularly to the intraformational grease of lubricant, high durability and convenient use, high stability, the service efficiency of reinforcing self-lubricating bearing.
Drawings
FIG. 1 is a schematic structural view of a grease lubrication bearing structure of a centrifugal pump;
FIG. 2 is a schematic cross-sectional view of an outer sleeve in a grease lubricated bearing structure of a centrifugal pump;
FIG. 3 is a schematic cross-sectional view of a centrifugal pump grease lubrication bearing structure;
fig. 4 is a schematic front view of balls in a centrifugal pump grease lubrication bearing structure.
In the figure: 1. an outer sleeve; 11. an outer coating layer; 12. inner coating; 2. an inner sleeve; 21. an auxiliary coating; 3. reinforcing the shaft layer; 4. the ball bearings are provided with shaft rings; 401. a ball mounting groove; 5. a wear-resistant coating; 6. a ball bearing; 61. and (4) lubricating the coating.
Detailed Description
Please refer to fig. 1-4, in the embodiment of the utility model, a centrifugal pump grease lubrication bearing structure, including the fixed inner shaft sleeve 2 of the inside block of outer shaft sleeve 1 and outer shaft sleeve 1, the outer wall coating of outer shaft sleeve 1 has external coating 11, the inner wall coating of outer shaft sleeve 1 has internal coating 12, external coating 11 all bonds fixedly with outer shaft sleeve 1 with internal coating 12, the inside of inner shaft sleeve 2 has set firmly ball installation shaft circle 4, ball installation shaft circle has a plurality of ball mounting groove 401 that is the axial symmetric distribution on 4, the inside block of ball mounting groove 401 is fixed with ball 6, ball 6 rotates in the inside of ball mounting groove 401, the inner wall of ball mounting groove 401 and the outer wall of ball 6 all bond and are fixed with lubricating coating 61, the inner wall bonding of inner shaft sleeve 2 is fixed with supplementary coating 21.
In fig. 1: a reinforcing shaft layer 3 is clamped and fixed between the outer shaft sleeve 1 and the inner shaft sleeve 2, and the outer shaft sleeve 1, the inner shaft sleeve 2 and the reinforcing shaft layer 3 rotate relatively, so that the mechanical performance and the use stability of the whole bearing can be enhanced; auxiliary coating 21 is the graphite alkene material, and graphite alkene has high heat conduction's heat radiation characteristic and anticorrosive, and the stability of being connected between reinforcing bearing and the outside work piece avoids the high temperature that the friction produced when the bearing rotates at a high speed too high, leads to the condition that the bearing appears abnormal wear under high temperature rotation state.
In fig. 2: the inner wall of the inner coating 12 is uniformly coated with the wear-resistant coating 5, the wear-resistant coating 5 is fixedly bonded with the inner coating 12, the wear-resistant coating 5 is made of silicon carbide, and the silicon carbide is stable in chemical property, high in heat conductivity coefficient, small in thermal expansion coefficient, good in wear resistance, good in thermal shock resistance, small in size, light in weight, high in strength and good in energy-saving effect; the outer coating 11 and the inner coating 12 are made of Teflon materials, and the coating formed by the Teflon coating has good non-adhesiveness, high temperature resistance, low temperature resistance, corrosion resistance, low friction wear resistance and non-wettability, can enhance the overall mechanical performance and use stability of the outer shaft sleeve 1, reduces the loss caused by abrasion, and prolongs the service life of the outer shaft sleeve 1 to a certain extent.
In fig. 3 and 4: lubricating coating 61 is the graphite material, can strengthen the rotational stability of ball 6 in ball mounting groove 401, need not set up the lubricating layer in ball mounting groove 401 and also can make ball 6 take place relative slip with ball mounting groove 401 in ball mounting groove 401, the graphite material has good lubricated effect, can play fine antifriction effect, replace the effect that the intraformational grease of lubricating played solid lubricant, and need not change regularly to the intraformational grease of lubricating, high durability and convenient use, high stability, the service efficiency of reinforcing self-lubricating bearing.
In fig. 1-4: the outer shaft sleeve 1, the inner shaft sleeve 2 and the reinforcing shaft layer 3 are all made of steel materials, have good hardness, corrosion resistance and corrosion resistance, and are solid, durable and long in service life.
The utility model discloses a theory of operation is: the inner wall and the outer wall of the outer shaft sleeve 1 are respectively coated with an inner coating 12 and an outer coating 11 which are made of Teflon materials, the coatings formed by Teflon coatings have good non-adhesiveness, high temperature resistance, low temperature resistance, corrosion resistance, low friction wear resistance and non-wettability, the integral mechanical performance and the use stability of the outer shaft sleeve 1 can be enhanced, the loss caused by abrasion is reduced, the service life of the outer shaft sleeve 1 is prolonged to a certain extent, the inner wall of the inner shaft sleeve 2 is coated with an auxiliary coating 21 which is made of graphene materials, the graphene has high heat conduction heat dissipation property and corrosion resistance, the connection stability between a bearing and an external workpiece is enhanced, the condition that the temperature generated by friction during high-speed rotation of the bearing is overhigh and abnormal abrasion of the bearing under a high-temperature rotation state is avoided, in addition, a layer of a lubricating coating 61 made of graphite materials is respectively fixedly arranged on the outer wall of the ball 6 and the inner wall of the, can strengthen the rotational stability of ball 6 in ball mounting groove 401, need not set up the lubricating layer in ball mounting groove 401 and also can make ball 6 take place relative slip with ball mounting groove 401 in ball mounting groove 401, play fine antifriction effect, replace the effect that the intraformational grease of lubricating played solid lubricant, and need not change regularly to the intraformational grease of lubricating equally, high durability and convenient use, high stability, the reinforcing is from lubricated bearing's availability factor.
Claims (7)
1. A grease lubrication bearing structure of a centrifugal pump comprises an outer shaft sleeve (1) and an inner shaft sleeve (2) fixed by the inner clamping of the outer shaft sleeve (1), and is characterized in that the outer wall of the outer shaft sleeve (1) is coated with an outer coating (11), the inner wall of the outer shaft sleeve (1) is coated with an inner coating (12), the outer coating (11) and the inner coating (12) are fixedly bonded with the outer shaft sleeve (1), a ball installation shaft ring (4) is fixedly arranged in the inner part of the inner shaft sleeve (2), a plurality of ball installation grooves (401) distributed in axial symmetry are arranged on the ball installation shaft ring (4), balls (6) are fixedly clamped in the inner part of the ball installation grooves (401), the inner wall of the ball installation grooves (401) and the outer wall of the balls (6) are fixedly bonded with lubrication coatings (61), and an auxiliary coating (21) is fixedly bonded on the inner wall of the inner shaft sleeve (2).
2. A centrifugal pump grease lubrication bearing structure as claimed in claim 1, wherein the inner wall of said inner coating (12) is uniformly coated with a wear-resistant coating (5), said wear-resistant coating (5) is adhesively fixed to said inner coating (12), and said wear-resistant coating (5) is made of silicon carbide.
3. A centrifugal pump grease lubrication bearing structure according to claim 1, characterized in that a reinforcing shaft layer (3) is fixed between the outer sleeve (1) and the inner sleeve (2) in a snap-fit manner, and the outer sleeve (1), the inner sleeve (2) and the reinforcing shaft layer (3) rotate relatively.
4. A centrifugal pump grease lubrication bearing structure according to claim 1, characterized in that the auxiliary coating (21) is of graphene material.
5. A centrifugal pump grease lubrication bearing structure according to claim 1, characterized in that the outer coating (11) and the inner coating (12) are both of teflon.
6. A centrifugal pump grease lubrication bearing structure as claimed in claim 1, wherein said lubrication coating (61) is of graphite material.
7. A centrifugal pump grease lubrication bearing structure according to claim 3, characterized in that the outer sleeve (1), the inner sleeve (2) and the reinforcing shaft layer (3) are all made of steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020554535.4U CN212803705U (en) | 2020-04-15 | 2020-04-15 | Grease lubrication bearing structure of centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020554535.4U CN212803705U (en) | 2020-04-15 | 2020-04-15 | Grease lubrication bearing structure of centrifugal pump |
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| Publication Number | Publication Date |
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| CN212803705U true CN212803705U (en) | 2021-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020554535.4U Active CN212803705U (en) | 2020-04-15 | 2020-04-15 | Grease lubrication bearing structure of centrifugal pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114001089A (en) * | 2021-09-30 | 2022-02-01 | 上海市轴承技术研究所 | Self-lubricating roller bearing and processing method |
-
2020
- 2020-04-15 CN CN202020554535.4U patent/CN212803705U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114001089A (en) * | 2021-09-30 | 2022-02-01 | 上海市轴承技术研究所 | Self-lubricating roller bearing and processing method |
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