CN208885602U - A kind of pump shaft and centrifugal pump - Google Patents
A kind of pump shaft and centrifugal pump Download PDFInfo
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- CN208885602U CN208885602U CN201821647626.1U CN201821647626U CN208885602U CN 208885602 U CN208885602 U CN 208885602U CN 201821647626 U CN201821647626 U CN 201821647626U CN 208885602 U CN208885602 U CN 208885602U
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- pump shaft
- pump
- axle body
- axle
- bottom wall
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Abstract
The utility model provides a kind of pump shaft and centrifugal pump, is related to centrifugal pump field.Pump shaft includes the first axle body, the second axle body and the third axis body of coaxial arrangement, the second axle body has the first end and the second end being oppositely arranged, the first axle body is connect with first end, and third axis body is connect with the second end, and the outer wall of the second axle body is relatively set with the first groove body and the second groove body.The structure of the pump shaft is simple, easy to process and assembly.
Description
Technical field
The utility model relates to centrifugal pump fields, in particular to a kind of pump shaft and centrifugal pump.
Background technique
Centrifugal pump is to be rotated using impeller and make water that centrifugal movement occur come work.Water pump is before activation, it is necessary to make to pump
It is full of water in shell and suction hose, then starts motor, pump shaft impeller and water is made to do high speed rotary motion, centrifugation fortune occurs for water
It is dynamic, it is thrown toward impeller outer edge, the runner through volute pump case flows into the pressure pipe road of water pump.
Centrifugal pump has that compact structure, wide scope flow and range of lift are wide, are suitable for mild corrosion liquid, a variety of
Control selections, uniform flow, smooth running, the with small vibration, basis that does not need special damping, equipment installation, Maintenance and Repair expense
The advantages that lower.
Centrifugal pump is widely used in liquid conveying, cooling system, industry cleaning link system, aquatic farm, fertilization system, meter
The places such as amount system, industrial equipment.
Currently, common centrifugal pump is provided with pump shaft on the market, it is connected by shaft coupling with motor, by motor
Torque is transmitted to impeller, so that impeller runs at high speed, and pump shaft structure is complicated, and processing is complicated, and machining accuracy is lower, the dress with impeller
With ineffective.
Utility model content
One of the purpose of this utility model is to provide a kind of pump shaft, and the structure of pump shaft can be made simple, easy to process
And assembly.
The another object of the utility model is to provide a kind of centrifugal pump, and the structure for capableing of pump shaft is simple, easy to process
And assembly.
To achieve the goals above, the utility model provides a kind of technical solution:
The utility model embodiment provides a kind of pump shaft, and the pump shaft includes the first axle body of coaxial arrangement, the second axis
Body and third axis body, the second axle body have the first end and the second end that are oppositely arranged, the first axle body with it is described
First end connection, the third axis body are connect with the second end, and the outer wall of the second axle body is relatively set with first
Groove body and the second groove body.
Further, first groove body and second groove body axially penetrate through the first end, so that described first
The radial section of end is kidney-shaped.
Further, first groove body is equipped with the first bottom wall, and second groove body is equipped with the second bottom wall, first bottom
Wall is parallel with second bottom wall.
Further, the second end includes first shaft shoulder and second shaft shoulder being oppositely arranged, first shaft shoulder with
First bottom wall intersection is provided with the first fillet, and second shaft shoulder and second bottom wall intersection are provided with the second circle
Angle.
Further, the second end is equipped with seal groove.
Further, the first axle body is provided with protrusion, and the protrusion is set on the outer wall of the first axle body.
Further, the protruding ring is set on the outer wall of the first axle body.
Further, the pump shaft further includes gasket, and the gasket is sheathed on the second axle body, the gasket with it is described
First shaft shoulder supports, and the gasket is supported with second shaft shoulder.
Further, the pump shaft further includes axle sleeve, and the axle sleeve is sheathed on the second axle body, and supports with the gasket
It holds.
The utility model embodiment additionally provides a kind of centrifugal pump, including body and pump shaft.The pump shaft includes coaxially setting
The first axle body, the second axle body and the third axis body set, the second axle body have the first end and the second end being oppositely arranged,
The first axle body is connect with the first end, and the third axis body is connect with the second end, the second axle body
Outer wall is relatively set with the first groove body and the second groove body.The pump shaft is connect with the body.
Compared with the existing technology, the beneficial effect of pump shaft and centrifugal pump provided by the utility model is:
A kind of pump shaft and centrifugal pump provided by the utility model, by being oppositely arranged first end and on the second axle body
The first axle body is connect by two ends with first end, third axis body is connect with the second end, and in the outer wall of the second axle body
It is oppositely arranged the first groove body and the second groove body, the structure of the pump shaft can be made simple, easy to process and assembly.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram of centrifugal pump provided by the embodiment of the utility model；
Fig. 2 is the stereoscopic schematic diagram of the pump shaft of centrifugal pump provided by the embodiment of the utility model；
Fig. 3 is the first visual angle figure of the pump shaft of centrifugal pump provided by the embodiment of the utility model；
Fig. 4 is the partial enlarged view at the position I in Fig. 3；
Fig. 5 is the structural schematic diagram of the sealing element of the pump shaft of centrifugal pump provided by the embodiment of the utility model.
Icon: 1- centrifugal pump；2- body；3- pump shaft；31- the first axle body；311- protrusion；32- the second axle body；321- first
End；322- the second end；First shaft shoulder of 3221-；Second shaft shoulder of 3222-；The first fillet of 3223-；The second fillet of 3224-；
3225- seal groove；The first groove body of 323-；The first bottom wall of 3231-；The second groove body of 324-；The second bottom wall of 3241-；33- third axis
Body；34- gasket；35- axle sleeve；36- sealing element.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the range of the utility model protection.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be understood that term " center ", "upper", "lower", "inner", "outside" etc. refer to
The orientation or positional relationship shown is to be based on the orientation or positional relationship shown in the drawings or when utility model product uses is used
The orientation or positional relationship that the orientation or positional relationship or those skilled in the art often put usually understand, merely to
Convenient for describing the utility model and simplifying description, rather than the equipment of indication or suggestion meaning or element must have specific side
Position is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
In addition, term " first ", " second " etc. are only used for distinguishing description, it is not understood to indicate or imply relatively important
Property.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " opening up ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, be also possible to removable
Connection is unloaded, or is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be in
Between medium be indirectly connected, can be the connection inside two elements.It for the ordinary skill in the art, can be specific
Situation understands the concrete meaning of above-mentioned term in the present invention.
Embodiment
Referring to Fig. 1, Fig. 1 show the structural schematic diagram of centrifugal pump 1 provided by the embodiment of the utility model.Centrifugal pump 1
It is main to make water that centrifugal movement occur come work using impeller rotation, it is a kind of equipment that can quickly convey liquid.
Centrifugal pump 1 includes body 2 and pump shaft 3, and one end of pump shaft 3 is connect with the output end of body 2, the other end of pump shaft 3
It is connect with an impeller (not shown).
Further, body 2 is mainly for generation of a high-revolving active force, so that water flow being capable of flow at high speed.
Further, pump shaft 3 is connected by shaft coupling (not shown) with motor (not shown), will be electronic
The torque transfer of machine is to impeller, so that impeller can run at high speed.The structure of pump shaft 3 is simple, and molding easy to process can be improved
The convenience of machining accuracy and assembly.
Fig. 2 show the stereoscopic schematic diagram of the pump shaft 3 of centrifugal pump 1 provided by the embodiment of the utility model, and Fig. 3 show this
First visual angle figure of the pump shaft 3 for the centrifugal pump 1 that utility model embodiment provides, please refers to Fig. 2 and Fig. 3.
Pump shaft 3 includes the first axle body 31, the second axle body 32 and the third axis body 33 of coaxial arrangement, and the second axle body 32 has phase
To the first end 321 and the second end 322 of setting, the first axle body 31 is connect with first end 321, third axis body 33 and second
End 322 connects, and the outer wall of the second axle body 32 is relatively set with the first groove body 323 and the second groove body 324.
Wherein, pump shaft 3 can use stainless steel material, can also use hard alloy, plate the material of resistance to aqueous corrosion and surpass
Hard material etc. is capable of the material of the resistance to aqueous corrosion of long-time, is not specifically limited herein.It should be noted that in the present embodiment,
Pump shaft 3 is whole to use stainless steel bars, and each component part is formed using stainless steel bars milling, and each process system is mature, structure
Simple easily system.The structure of pump shaft 3 is simple, and molding easy to process can be improved the convenience of machining accuracy and assembly.
It should be noted that in the present embodiment, the first axle body 31, the second axle body 32 and third axis body 33 are integrated into
Type, and the first axle body 31, the second axle body 32 and third axis body 33 are sequentially connected, and are conducive to improve the first axle body 31, the second axle body
Concentricity between 32 and third axis body 33 improves the assembly performance of pump shaft 3.
The first axle body 31 is generally cylindrical, for cooperating with a shaft coupling (not shown).The first axle body 31 is arranged
There is protrusion 311, protrusion 311 is set on the outer wall of the first axle body 31.
It should be noted that protrusion 311 can be set on the outer wall of the first axle body 31 with whole ring, it can also be multiple for quantity
And spacer ring is set on the outer wall of the first axle body 31.In the present embodiment, protrusion 311 is located on the outer wall of the first axle body 31,
That is the shape of protrusion 311 is substantially in circular ring shape.Protrusion 311 with shaft coupling (not shown) when cooperating, for playing one
The effect of limit.
The second axle body 32 is generally cylindrical, and specifically, first end 321 is the cylinder that radial section is kidney-shaped, and second
End 322 is generally cylindrical.First end 321 and the second end 322 are oppositely arranged, and are integrally formed.
Further, the first groove body 323 and the second slot are relatively set on the outer wall of the first end 321 of the second axle body 32
Body 324.
First groove body 323 and the second groove body 324 are substantially in the bowed cylinder of minor arc.Wherein, the first groove body 323 and the second slot
Body 324 axially penetrates through first end 321, so that the radial section of first end 321 is kidney-shaped.
Further, the first groove body 323 be equipped with the first bottom wall 3231, the second groove body 324 be equipped with the second bottom wall 3241, first
Bottom wall 3231 is parallel with the second bottom wall 3241, wherein the first bottom wall 3231 and the second bottom wall 3241 are generally rectangular.
Further, Fig. 4 (partial enlarged view that Fig. 4 show the position I in Fig. 3) is please referred to.
The second end 322 includes first shaft shoulder 3221 and second shaft shoulder 3222 being oppositely arranged.Wherein, first shaft shoulder 3221
It is substantially in minor arc arch with second shaft shoulder 3222.First shaft shoulder 3221 and 3231 intersection of the first bottom wall are provided with the first fillet
3223, second shaft shoulder 3222 and 3241 intersection of the second bottom wall are provided with the second fillet 3224.Due to first end 321 and second
The change in size of end 322 is larger, therefore the first fillet 3223 and the second fillet 3224 are used for first end 321 and the second end
322 transition convenient for assembly, and can prevent the stress of the second axle body 32 from concentrating, and promote the intensity of the second axle body 32, avoid pumping
The case where service life of axis 3 reduces.
Further, the second end 322 is equipped with seal groove 3225, and seal groove 3225 is substantially in circular ring shape, seal groove
3225 quantity can be one, or it is multiple, it is not specifically limited herein, only needs that sealing function can be played.
Seal groove 3225 is used for sealing element 36 (as shown in figure 5, Fig. 5 show the pump of centrifugal pump 1 provided by the embodiment of the utility model
The structural schematic diagram of the sealing element 36 of axis 3) connection, the quantity of sealing element 36 can be one, or it is multiple, do not make herein
Specific to limit, only needing can be corresponding with the quantity of seal groove 3225.Seal groove 3225 and sealing element 36 cooperate, with can
Water flow is stopped to be revealed from the second axle body 32.
Continuing with combination refering to Fig. 2 and Fig. 4.
Further, pump shaft 3 further includes gasket 34, and 34 monnolithic case of gasket is substantially in that the circle that hollow position is kidney-shaped is thin
Sheet.
Gasket 34 is sheathed on the second axle body 32, and specifically, gasket 34 passes through the first groove body 323 and the second groove body 324 is arranged
In the second end 322 of the second axle body 32, gasket 34 is supported with first shaft shoulder 3221, and gasket 34 is supported with second shaft shoulder 3222
It holds.Gasket 34 is used to play buffer function in assembly, the rigidity between components is avoided to support, cause the damage of components.
Further, pump shaft 3 further includes axle sleeve 35, and axle sleeve 35 is substantially in cylindrical, and intermediate is hollow kidney-shaped knot
Structure.Wherein, axle sleeve 35 is sheathed on the second axle body 32, and specifically, axle sleeve 35 passes through the first groove body 323 and the second groove body 324 is arranged
It is supported in the second end 322 of the second axle body 32, and with gasket 34.When axle sleeve 35 is used to assemble impeller, a positioning action is played,
And play the role of a support.
The working principle of pump shaft provided in this embodiment 3 introduced below:
The first axle body 31 is connect with a shaft coupling (not shown)；Sealing element 36 is sheathed on the second end 322 and is opened up
Seal groove 3225 in；Axle sleeve 35 and gasket 34 pass through the first groove body 323 and the second groove body 324 is sheathed on the of the second axle body 32
Two ends 322, and axle sleeve 35 is held in gasket 34, impeller (not shown) is placed on the second axle body 32 and positions with axle sleeve 35 and fills
Match.
In conclusion a kind of pump shaft 3 provided by the utility model and centrifugal pump 1, are set by opposite on the second axle body 32
First end 321 and the second end 322 are set, the first axle body 31 is connect with first end 321, by third axis body 33 and second end
Portion 322 connects, and is oppositely arranged the first groove body 323 and the second groove body 324 in the outer wall of the second axle body 32, can make the pump shaft
3 structure is simple, easy to process and assembly.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of pump shaft, which is characterized in that the pump shaft includes the first axle body, the second axle body and the third axis body of coaxial arrangement,
The second axle body has the first end and the second end being oppositely arranged, and the first axle body is connect with the first end,
The third axis body is connect with the second end, and the outer wall of the second axle body is relatively set with the first groove body and the second slot
Body.
2. pump shaft according to claim 1, which is characterized in that first groove body and second groove body axially penetrate through institute
First end is stated, so that the radial section of the first end is kidney-shaped.
3. pump shaft according to claim 1, which is characterized in that first groove body is equipped with the first bottom wall, second slot
Body is equipped with the second bottom wall, and first bottom wall is parallel with second bottom wall.
4. pump shaft according to claim 3, which is characterized in that the second end include first shaft shoulder that is oppositely arranged and
Second shaft shoulder, first shaft shoulder and first bottom wall intersection are provided with the first fillet, second shaft shoulder and described the
Two bottom wall intersections are provided with the second fillet.
5. pump shaft according to claim 1, which is characterized in that the second end is equipped with seal groove.
6. pump shaft according to claim 1, which is characterized in that the first axle body is provided with protrusion, the protrusion setting
In on the outer wall of the first axle body.
7. pump shaft according to claim 6, which is characterized in that the protruding ring is set on the outer wall of the first axle body.
8. pump shaft according to claim 1, which is characterized in that the pump shaft further includes gasket, and the gasket is sheathed on institute
The second axle body is stated, the gasket is supported with first shaft shoulder, and the gasket is supported with second shaft shoulder.
9. pump shaft according to claim 8, which is characterized in that the pump shaft further includes axle sleeve, and the axle sleeve is sheathed on institute
The second axle body is stated, and is supported with the gasket.
10. a kind of centrifugal pump, which is characterized in that including body and such as the described in any item pump shafts of claim 1-9, the pump shaft
It is connect with the body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821647626.1U CN208885602U (en) | 2018-10-10 | 2018-10-10 | A kind of pump shaft and centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821647626.1U CN208885602U (en) | 2018-10-10 | 2018-10-10 | A kind of pump shaft and centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208885602U true CN208885602U (en) | 2019-05-21 |
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ID=66515499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821647626.1U Active CN208885602U (en) | 2018-10-10 | 2018-10-10 | A kind of pump shaft and centrifugal pump |
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| Country | Link |
|---|---|
| CN (1) | CN208885602U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110821827A (en) * | 2019-10-28 | 2020-02-21 | 宝鸡市隆庆金属材料制品厂 | Stainless steel shaft, fluid pump and machining method of stainless steel shaft |
-
2018
- 2018-10-10 CN CN201821647626.1U patent/CN208885602U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110821827A (en) * | 2019-10-28 | 2020-02-21 | 宝鸡市隆庆金属材料制品厂 | Stainless steel shaft, fluid pump and machining method of stainless steel shaft |
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