CN217135284U - Oil chamber and pump motor - Google Patents
Oil chamber and pump motor Download PDFInfo
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- CN217135284U CN217135284U CN202221038656.9U CN202221038656U CN217135284U CN 217135284 U CN217135284 U CN 217135284U CN 202221038656 U CN202221038656 U CN 202221038656U CN 217135284 U CN217135284 U CN 217135284U
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- mechanical seal
- end cover
- oil chamber
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Abstract
The utility model relates to a motor for grease chamber and pump solves among the prior art grease chamber sand control, mechanical seal effect not good, sluices easily, advances husky scheduling problem, the technical scheme of adoption: the oil chamber comprises an end cover, a shaft sleeve and an outer sleeve which are arranged on one side of the end cover, the shaft sleeve and the outer sleeve are of a coaxial structure, and the end cover, the shaft sleeve and the outer sleeve are of an integrated structure; and a pump motor using the oil chamber. The method has the following effects: the structure of the oil chamber is improved, the water chamber is additionally arranged, water is filled in the water chamber, the water chamber is used for taking away heat generated by the movement of the mechanical seal, the lubricating effect can be achieved, and the sealing reliability and the stability of the inner mechanical seal can be improved; the oil chamber end cover is arranged on the outer side of the oil chamber end cover; outer mechanical seal plays the waterproof effect of double seal, and the cooperation is got rid of the sand structure and can be formed the effect of dual sand prevention again.
Description
Technical Field
The utility model relates to an grease chamber and pump motor especially relate to an improve grease chamber and pump motor of grease chamber structure.
Background
Current grease chamber includes the end cover, sets up axle sleeve and the overcoat of end cover one side, axle sleeve and overcoat are coaxial structure, end cover, axle sleeve, overcoat structure as an organic whole, mechanical seal (herein, outer mechanical seal and interior mechanical seal can be referred to as outer mechanical seal for short, interior mechanical seal) and bearing are set up in the axle sleeve, and interior mechanical seal's both ends are contradicted respectively on the inner wall of bearing and end cover, and the sand structure is got rid of in the outer wall cooperation of end cover for prevent that silt particle from entering into interior mechanical seal position along the rotor shaft on end cover and the motor, at high-speed rotation in-process, influence interior mechanical seal's sealing performance. For the existing oil chamber, because only one mechanical seal is arranged, the sealing performance is not strong enough, and the situations of water drainage and sand inlet often occur.
Disclosure of Invention
An object of the utility model is to solve the above-mentioned problem that prior art exists and provide an grease chamber and pump motor, improve grease chamber structure, add the water cavity in the end cover of grease chamber, fill water in the water cavity, be used for taking away the heat that the mechanical seal motion produced, and can play the lubrication action, be favorable to improving the sealing reliability and the stability of interior mechanical seal, secondly, set up outer mechanical seal seat ring in the outside of grease chamber end cover, be used for setting up outer mechanical seal, play the waterproof effect of double seal, the cooperation is got rid of the sand structure and can form the effect of dual sand prevention again.
The above technical purpose of the present invention is mainly solved by the following technical solutions: the oil chamber comprises an end cover, and a shaft sleeve and an outer sleeve which are arranged on one side of the end cover, wherein the shaft sleeve and the outer sleeve are of a coaxial structure, and the end cover, the shaft sleeve and the outer sleeve are of an integrated structure. Improve grease chamber structure, add the water cavity in the end cover of grease chamber, fill water in the water cavity, be used for taking away the heat that the mechanical seal motion produced, and can play the lubrication action, be favorable to improving the sealing reliability and the stability of interior mechanical seal, limbers intercommunication water cavity and end cover exterior space, can make the water that is full of in the water cavity in time circulate the exchange with the outside water of end cover, with the absorptive rotor shaft of water in the water cavity, the heat on the interior mechanical seal in time conducts away, effectively cool down and the lubrication action rotor shaft and interior mechanical seal.
And the water cavity is communicated with the outside of the end cover, so that the effect of balancing the pressure between the inner mechanical seal and the outer mechanical seal can be achieved, and the inner mechanical seal and the outer mechanical seal can run more stably.
Secondly, set up outer machine seal ring in the outside of grease chamber end cover for set up outer mechanical seal, play the waterproof effect of double seal, the cooperation is got rid of the sand structure and can be formed the effect of double sand prevention again.
As further improvement and supplement to the above technical scheme, the utility model discloses a following technical measure:
the outer end wall of the water cavity is an inclined wall, the outer end wall of the water cavity inclines towards the outer end direction of the end cover, the water through hole is matched with the outermost end of the inclined wall, and the outer end of the water through hole is provided with a filter plug. The outer end wall of the water cavity inclines towards the outer end direction of the end cover, so that air in the water cavity can be smoothly and quickly discharged, and external water can be smoothly poured into the water cavity. The filter plug can effectively filter silt in water, and prevent silt from pouring into the water cavity along with water and then leading to interior mechanical seal to damage.
An outer machine seal seat ring is arranged on the outer wall of the end cover, and the water through hole is formed in the periphery of the outer machine seal seat ring. An outer machine sealing ring is arranged on the outer side of the oil chamber end cover and used for arranging outer mechanical seal, and the double-sealing waterproof and sand-proof effects are achieved.
In order to facilitate development of a die and production and processing, the cross section of the water cavity is circular, and the axis of the water cavity is the same as or parallel to the axis of the shaft sleeve.
Under the condition of guaranteeing end cover intensity, make the volume of water cavity as big as possible, can fill more water, the water cavity cross section is circular, the axial depth of water cavity is d, the end cover wall thickness is a, 1/2a < d < a, the radius R of water cavity, the radius of end cover is R, 1/2R < R < R.
The pump motor comprises a shell, a rotor assembly, a stator assembly and a rear end cover, wherein the rotor assembly and the stator assembly are arranged in the shell, the rear end cover and an oil chamber are arranged at two ends of the shell, one end of a rotor shaft on the rotor assembly is matched with the rear end cover, the other end of the rotor shaft runs through the oil chamber, and the pump motor is characterized in that the oil chamber is the oil chamber.
An inner mechanical seal and a bearing are arranged in the shaft sleeve, the outer end of the inner mechanical seal abuts against the inner wall of the end cover, and the inner end of the inner mechanical seal abuts against the bearing.
An outer machine seal seat ring is arranged on the outer end wall of the end cover, the axis of the outer machine seal seat ring is coaxial with the axis of the rotor shaft, an outer mechanical seal is arranged in the outer machine seal seat ring, and the outer mechanical seal is sleeved on the rotor shaft.
A cover cap is detachably fixed on the outer wall of the end cover, the outer mechanical seal is arranged in the cover cap, and the outer end of the cover cap is matched with a sand throwing sleeve.
The utility model discloses beneficial effect who has: 1. the water chamber is additionally arranged in the end cover of the oil chamber, water is filled in the water chamber, the water chamber is used for taking away heat generated by the movement of the mechanical seal, the lubricating effect can be achieved, and the sealing reliability and stability of the inner mechanical seal can be improved. 2. The outer end wall of the water cavity inclines towards the outer end direction of the end cover, so that air in the water cavity can be smoothly and quickly discharged, and external water can be smoothly poured into the water cavity. 3. The filter plug can effectively filter silt in water, and prevent silt from pouring into the water cavity along with water and then leading to interior mechanical seal to damage. 4. An outer machine sealing ring is arranged on the outer side of the oil chamber end cover and used for arranging outer mechanical seal, and the double-sealing waterproof and sand-proof effects are achieved.
Drawings
Fig. 1 is a schematic sectional view of the middle oil chamber of the present invention.
Fig. 2 is a schematic diagram illustrating a partial structure of a pump motor according to the present invention.
Fig. 3 is an exploded view of the outer mechanical seal housing added to fig. 2.
Fig. 4 is a cross-sectional structural view of an assembled state of the corresponding structure of fig. 2.
Fig. 5 is a cross-sectional structural view of an assembled state of the corresponding structure of fig. 3.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
Example (b): as shown in fig. 1-5, the oil chamber comprises an end cover 1, a shaft sleeve 2 and an outer sleeve 3, wherein the shaft sleeve 2 and the outer sleeve 3 are arranged on one side of the end cover, and are of a coaxial structure, and the end cover, the shaft sleeve and the outer sleeve are of an integrated structure.
The end cover is internally provided with a water cavity 4, the water cavity 4 is communicated with a shaft hole 11 on the end cover 1, the end cover is provided with a water through hole 12, and the water through hole 12 is communicated with the water cavity 4 and the external space of the end cover 1. Improve grease chamber structure, add the water cavity in the end cover of grease chamber, fill water in the water cavity, be used for taking away the heat that the mechanical seal motion produced, and can play the lubrication action, be favorable to improving the sealing reliability and the stability of interior mechanical seal, limbers intercommunication water cavity and end cover exterior space, can make the water that is full of in the water cavity in time circulate the exchange with the outside water of end cover, with the absorptive rotor shaft of water in the water cavity, the heat on the interior mechanical seal in time conducts away, effectively cool down and the lubrication action rotor shaft and interior mechanical seal.
And the water cavity is communicated with the outside of the end cover, so that the effect of balancing the pressure between the inner mechanical seal and the outer mechanical seal can be achieved, and the inner mechanical seal and the outer mechanical seal can run more stably.
Secondly, set up outer machine seal ring in the outside of grease chamber end cover for set up outer mechanical seal, play the waterproof effect of double seal, the cooperation is got rid of the sand structure and can be formed the effect of double sand prevention again.
Preferably, the outer end wall of the water cavity 4 is an inclined wall 41, the outer end wall of the water cavity is inclined towards the outer end direction of the end cover, the water through hole is matched with the outermost end of the inclined wall, and the outer end of the water through hole is provided with a filter plug 5. The outer end wall of the water cavity inclines towards the outer end direction of the end cover, so that air in the water cavity can be smoothly and quickly discharged, and external water can be smoothly poured into the water cavity. The filter plug can effectively filter silt in water, and prevent silt from pouring into the water cavity along with water and then leading to interior mechanical seal to damage.
An outer machine seal ring 13 is arranged on the outer wall of the end cover 1, and the water through hole 12 is arranged on the periphery of the outer machine seal ring 13. An outer machine sealing ring is arranged on the outer side of the oil chamber end cover and used for arranging outer mechanical seal, and the double-sealing waterproof and sand-proof effects are achieved.
In order to facilitate development of a die and production and processing, the cross section of the water cavity 4 is circular, and the axis of the water cavity and the axis of the shaft sleeve are the same axis or parallel.
Under the condition of guaranteeing end cover intensity, make the volume of water cavity as big as possible, can fill more water, the water cavity cross section is circular, the axial depth of water cavity is d, the end cover wall thickness is a, 1/2a < d < a, the radius R of water cavity, the radius of end cover is R, 1/2R < R < R.
The pump motor comprises a shell, a rotor assembly, a stator assembly and a rear end cover, wherein the rotor assembly and the stator assembly are arranged in the shell, the rear end cover and an oil chamber are arranged at two ends of the shell, one end of a rotor shaft 6 on the rotor assembly is matched with the rear end cover, the other end of the rotor shaft runs through the oil chamber, and the oil chamber is the oil chamber.
Interior mechanical seal 7 and bearing are set up in the axle sleeve 2, interior mechanical seal's outer end is contradicted on the inner wall of end cover, interior mechanical seal's inner is contradicted on the bearing.
An outer machine seal seat ring 13 is arranged on the outer end wall of the end cover, the axis of the outer machine seal seat ring is coaxial with the axis of the rotor shaft, an outer mechanical seal 8 is arranged in the outer machine seal seat ring, and the outer mechanical seal is sleeved on the rotor shaft 6.
A cover cap 9 is detachably fixed on the outer wall of the end cover, the outer mechanical seal 8 is arranged in the cover cap, and the outer end of the cover cap is matched with a sand throwing sleeve.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention. In the above embodiments, the present invention may be variously modified and changed. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The oil chamber comprises an end cover, and a shaft sleeve and an outer sleeve which are arranged on one side of the end cover, wherein the shaft sleeve and the outer sleeve are of a coaxial structure, and the end cover, the shaft sleeve and the outer sleeve are of an integrated structure.
2. The oil chamber of claim 1, wherein the outer end wall of the water chamber is an inclined wall, the outer end wall of the water chamber is inclined toward the outer end of the end cover, the water through hole is matched with the outermost end of the inclined wall, and the outer end of the water through hole is provided with a filter plug.
3. The oil chamber according to claim 1 or 2, characterized in that an outer machine seal ring is provided on an outer wall of the end cover, and the water passage hole is provided at an outer periphery of the outer machine seal ring.
4. The oil chamber according to claim 1 or 2, characterized in that the water chamber is circular in cross-section, the axis of the water chamber being the same axis or parallel to the axis of the bushing.
5. The oil chamber of claim 3, characterized in that the water chamber is circular in cross-section, the axis of the water chamber being coaxial or parallel with the axis of the bushing.
6. The oil chamber of claim 5, characterized in that the water chamber is circular in cross-section, the axial depth of the water chamber is d, the wall thickness of the end cap is a, 1/2a < d < a, the radius of the water chamber R, the radius of the end cap is R, 1/2R < R < R.
7. The pump motor comprises a shell, a rotor assembly and a stator assembly which are arranged in the shell, and a rear end cover and an oil chamber which are arranged at two ends of the shell, wherein one end of a rotor shaft on the rotor assembly is matched with the rear end cover, and the other end of the rotor shaft penetrates through the oil chamber, and the pump motor is characterized in that the oil chamber is the oil chamber in any one of claims 1 to 5.
8. A pump motor according to claim 7, wherein an inner mechanical seal and a bearing are provided within the sleeve, the outer end of the inner mechanical seal abutting against the inner wall of the end cap and the inner end of the inner mechanical seal abutting against the bearing.
9. The pump motor of claim 8, wherein an outer mechanical seal ring is disposed on an outer end wall of the end cap, an axis of the outer mechanical seal ring is coaxial with an axis of the rotor shaft, and an outer mechanical seal is disposed in the outer mechanical seal ring and is fitted over the rotor shaft.
10. A pump motor according to claim 9, wherein a cover is detachably secured to an outer wall of said end cap, said outer mechanical seal being disposed in said cover, an outer end of said cover being fitted with a sand slinger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221038656.9U CN217135284U (en) | 2022-04-28 | 2022-04-28 | Oil chamber and pump motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221038656.9U CN217135284U (en) | 2022-04-28 | 2022-04-28 | Oil chamber and pump motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217135284U true CN217135284U (en) | 2022-08-05 |
Family
ID=82650830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221038656.9U Active CN217135284U (en) | 2022-04-28 | 2022-04-28 | Oil chamber and pump motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217135284U (en) |
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2022
- 2022-04-28 CN CN202221038656.9U patent/CN217135284U/en active Active
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