CN214499536U - Shaft sleeve assembly convenient to mount and dismount - Google Patents
Shaft sleeve assembly convenient to mount and dismount Download PDFInfo
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- CN214499536U CN214499536U CN202120005747.1U CN202120005747U CN214499536U CN 214499536 U CN214499536 U CN 214499536U CN 202120005747 U CN202120005747 U CN 202120005747U CN 214499536 U CN214499536 U CN 214499536U
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- shaft sleeve
- shaft
- axle sleeve
- positioning
- groove
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Abstract
The utility model discloses an installation dismantlement convenient axle sleeve assembly, including pump shaft, axle sleeve and axle sleeve setting element, tip one side of pump shaft is equipped with axle shoulder portion, installation department and location portion in proper order, and the installation department is cylindrical, and has seted up the keyway on the lateral wall of this installation department, and the inner wall of axle sleeve sets up the logical groove with the adaptation of keyway, and this logical groove one end extends to the right-hand member of axle sleeve, and the axle sleeve suit is on the installation department of pump shaft, installs the parallel key in logical groove and the keyway, and the right-hand member butt axle shoulder portion of axle sleeve, the left end butt axle sleeve setting element of axle sleeve; the right end face of the shaft sleeve positioning piece is integrally formed with a plurality of inserting parts, the sections of the inserting parts are fan-shaped, the left end face of the shaft sleeve is provided with a plurality of inserting grooves, and the sections of the inserting grooves are also fan-shaped and matched with the inserting parts; the inserting part is inserted in the inserting groove; the utility model has the advantages of simple structure, the installation is dismantled all very conveniently, can dismantle fast after the axle sleeve damages.
Description
Technical Field
The utility model relates to a water pump field specifically is a convenient axle sleeve assembly is dismantled in installation.
Background
Water pumps are machines that deliver or pressurize a liquid. It transfers the mechanical energy of prime mover or other external energy to liquid to increase the energy of liquid, and is mainly used to transfer liquid including water, oil, acid-base liquid, emulsion, suspoemulsion and liquid metal.
Liquids, gas mixtures, and liquids containing suspended solids may also be transported. The technical parameters of the water pump performance include flow, suction lift, shaft power, water power, efficiency and the like; the pump can be divided into a volume water pump, a vane pump and the like according to different working principles. The displacement pump transfers energy by utilizing the change of the volume of a working chamber; vane pumps transfer energy by the interaction of rotating vanes with water and are available in the types of centrifugal pumps, axial flow pumps, mixed flow pumps, and the like.
The vertical water pump is a pressurizing drainage device commonly used in the fields of farmland drainage and irrigation, industrial and mining, ship lifting water level, urban water supply and drainage, power station circulating water and the like. And because the vertical water pump has the advantages of high efficiency, good cavitation performance and the like, the vertical water pump is particularly suitable for use occasions with large water level change and high lift requirement.
In the long-term operation process of the water pump, the pump shaft and the bearing are easy to wear due to mutual friction, so that the service life is greatly reduced. Therefore, in order to protect the pump shaft from being worn and prolong the service life of the pump shaft, a circle of shaft sleeve is usually arranged between the pump shaft and the bearing, in the traditional vertical water pump, the pump shaft and the shaft sleeve are usually connected and fixed in a hot sleeving mode, namely, the shaft sleeve is heated and then axially sleeved by adopting interference fit, and the single shaft sleeve of the structure is too troublesome to disassemble after being worn.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a convenient axle sleeve assembly is dismantled in installation 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:
a shaft sleeve assembly convenient to mount and dismount comprises a pump shaft, a shaft sleeve and a shaft sleeve positioning piece, wherein one side of the end part of the pump shaft is sequentially provided with a shaft shoulder part, a mounting part and a positioning part, the diameter of the shaft shoulder part is larger than that of the mounting part, the mounting part is cylindrical, the side wall of the mounting part is provided with a key groove,
the inner wall of the shaft sleeve is provided with a through groove matched with the key groove, one end of the through groove extends to the right end of the shaft sleeve, the shaft sleeve is sleeved on the mounting part of the pump shaft, a flat key is mounted in the through groove and the key groove, the right end of the shaft sleeve abuts against the shaft shoulder part, and the left end of the shaft sleeve abuts against the shaft sleeve positioning part;
the positioning part is quadrangular, the outer wall of the shaft sleeve positioning part is a cylindrical sleeve, the section of the inner wall of the shaft sleeve positioning part is rectangular and is matched with the positioning part, a first threaded hole is formed in the side wall of one side of the positioning part, a second threaded hole matched with the first threaded hole is also formed in the shaft sleeve positioning part, and positioning screws are connected with the first threaded hole and the second threaded hole in an internal thread mode;
the right end face of the shaft sleeve positioning piece is integrally formed with a plurality of inserting parts, the sections of the inserting parts are fan-shaped, at least three inserting parts are arranged, and the inserting parts are arranged on the right end face of the shaft sleeve positioning piece in a circular array by taking the shaft sleeve positioning piece axis as the circle center; correspondingly, a plurality of inserting grooves are formed in the left end face of the shaft sleeve, and the sections of the inserting grooves are in the same fan shape matched with the inserting parts; the inserting part is inserted in the inserting groove.
Further, the outer diameter of the shaft sleeve positioning part is 5mm less than that of the shaft sleeve.
Further, the second threaded hole is a counter bore.
Furthermore, the number of the inserting parts is three.
Furthermore, an elastic gasket can be arranged between the shaft sleeve positioning piece and the shaft sleeve and used for reducing axial impact, and a fan-shaped hole matched with the insertion part is formed in the elastic gasket.
Compared with the prior art, the beneficial effects of the utility model are that: the shaft sleeve positioning piece and the shaft shoulder jointly limit the axial displacement of the shaft sleeve; the inserting part is inserted in the inserting groove, the inserting part and the inserting groove are arranged to transmit the torque between the pump shaft and the shaft sleeve together with the flat key, and the elastic gasket is used for reducing axial impact.
Drawings
FIG. 1 is a top view of a bushing assembly for easy installation and removal.
Fig. 2 is a schematic structural view of a bushing assembly which is convenient to mount and dismount.
Fig. 3 is a schematic structural view of a pump shaft in a shaft sleeve assembly convenient to mount and dismount.
Fig. 4 is a schematic structural view of a shaft sleeve positioning member of a shaft sleeve assembly, which is convenient to mount and dismount.
Fig. 5 is a schematic structural view of an elastic washer in a shaft sleeve assembly convenient to mount and dismount.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Referring to fig. 1 to 5, a shaft sleeve assembly with easy assembly and disassembly includes a pump shaft 100, a shaft sleeve 200 and a shaft sleeve positioning element 300,
a shaft shoulder 110, a mounting part 120 and a positioning part 130 are sequentially arranged on one side of the end part of the pump shaft 100, the diameter of the shaft shoulder 101 is larger than that of the mounting part 102, the mounting part 120 is cylindrical, a key groove 121 is formed on the side wall of the mounting part 120,
a through groove 201 matched with the key groove 121 is formed in the inner wall of the shaft sleeve 200, one end of the through groove 201 extends to the right end of the shaft sleeve 200, the shaft sleeve 200 is sleeved on the mounting portion 120 of the pump shaft 100, a flat key 202 is mounted in the through groove 201 and the key groove 121, the right end of the shaft sleeve 200 abuts against the shaft shoulder portion 101, and the left end of the shaft sleeve 200 abuts against the shaft sleeve positioning member 300; the shaft sleeve positioning member 300 and the shaft shoulder 110 together limit axial displacement of the shaft sleeve 200, the flat key 202 serves to transmit torque between the pump shaft 100 and the shaft sleeve 200,
the positioning portion 130 is in a quadrangular prism shape, the shaft sleeve positioning piece 300 is a sleeve with a cylindrical outer wall, the cross section of the inner wall of the shaft sleeve positioning piece 300 is a rectangle matched with the positioning portion 130, a first threaded hole 131 is formed in the side wall of one side of the positioning portion 130, a second threaded hole 301 matched with the first threaded hole 131 is also formed in the shaft sleeve positioning piece 300, the first threaded hole 131 and the second threaded hole 301 are connected with a positioning screw 302 in an internal thread mode, and further, the second threaded hole 301 is a countersunk hole;
the outer diameter of the shaft sleeve positioning piece 300 is 5mm smaller than the outer diameter of the shaft sleeve 200, a plurality of inserting parts 310 are integrally formed on the right end face of the shaft sleeve positioning piece 300, the sections of the inserting parts 310 are fan-shaped, at least three inserting parts 310 are arranged, and the inserting parts 310 are arranged on the right end face of the shaft sleeve positioning piece 300 in a circular array by taking the shaft sleeve positioning piece 300 as the center of a circle; correspondingly, a plurality of inserting grooves 203 are formed in the left end face of the shaft sleeve 200, and the sections of the inserting grooves 203 are similarly in a fan shape matched with the inserting part 310; the insertion part 310 is inserted into the insertion groove 203, the insertion part 310 and the insertion groove 203 are arranged to transmit the torque between the pump shaft 100 and the shaft sleeve 200 together with the flat key 202,
still further, an elastic gasket 400 may be further disposed between the shaft sleeve positioning element 300 and the shaft sleeve 200 for reducing axial impact, and a fan-shaped hole 401 adapted to the insertion part 310 is formed in the elastic gasket 400.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (5)
1. A shaft sleeve assembly convenient to mount and dismount comprises a pump shaft, a shaft sleeve and a shaft sleeve positioning piece, and is characterized in that one side of the end part of the pump shaft is sequentially provided with a shaft shoulder part, a mounting part and a positioning part, the diameter of the shaft shoulder part is larger than that of the mounting part, the mounting part is cylindrical, the side wall of the mounting part is provided with a key groove,
the inner wall of the shaft sleeve is provided with a through groove matched with the key groove, one end of the through groove extends to the right end of the shaft sleeve, the shaft sleeve is sleeved on the mounting part of the pump shaft, a flat key is mounted in the through groove and the key groove, the right end of the shaft sleeve abuts against the shaft shoulder part, and the left end of the shaft sleeve abuts against the shaft sleeve positioning part;
the positioning part is in a quadrangular shape, the shaft sleeve positioning part is a sleeve with a cylindrical outer wall, the section of the inner wall of the shaft sleeve positioning part is a rectangle matched with the positioning part, a first threaded hole is formed in the side wall of one side of the positioning part, a second threaded hole matched with the first threaded hole is also formed in the shaft sleeve positioning part, and positioning screws are connected with the first threaded hole and the second threaded hole in an internal thread mode;
the right end face of the shaft sleeve positioning piece is integrally formed with a plurality of inserting parts, the sections of the inserting parts are fan-shaped, at least three inserting parts are arranged, and the inserting parts are arranged on the right end face of the shaft sleeve positioning piece in a circular array by taking the shaft sleeve positioning piece axis as the circle center; correspondingly, a plurality of inserting grooves are formed in the left end face of the shaft sleeve, and the sections of the inserting grooves are in the same fan shape matched with the inserting parts; the inserting part is inserted in the inserting groove.
2. The bushing assembly according to claim 1 wherein said bushing retainer has an outer diameter less than 5mm of the outer diameter of the bushing.
3. The bushing assembly according to claim 1 wherein said second threaded bore is a counterbore.
4. The bushing assembly according to claim 1, wherein there are three said insertion portions.
5. The shaft sleeve assembly convenient to mount and dismount as claimed in claim 1, wherein an elastic gasket for reducing axial impact is further disposed between the shaft sleeve positioning element and the shaft sleeve, and a fan-shaped hole adapted to the insertion portion is formed in the elastic gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120005747.1U CN214499536U (en) | 2021-01-04 | 2021-01-04 | Shaft sleeve assembly convenient to mount and dismount |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120005747.1U CN214499536U (en) | 2021-01-04 | 2021-01-04 | Shaft sleeve assembly convenient to mount and dismount |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214499536U true CN214499536U (en) | 2021-10-26 |
Family
ID=78214028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120005747.1U Active CN214499536U (en) | 2021-01-04 | 2021-01-04 | Shaft sleeve assembly convenient to mount and dismount |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214499536U (en) |
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2021
- 2021-01-04 CN CN202120005747.1U patent/CN214499536U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A shaft sleeve assembly with convenient installation and disassembly Effective date of registration: 20211230 Granted publication date: 20211026 Pledgee: Bank of Jiangsu Co.,Ltd. Shanghai Fengxian sub branch Pledgor: SHANGHAI PUMP MANUFACTURE Co.,Ltd. Registration number: Y2021310000175 |