CN110219824A - A kind of Water pump integral key shaft and its processing method - Google Patents
A kind of Water pump integral key shaft and its processing method Download PDFInfo
- Publication number
- CN110219824A CN110219824A CN201910472527.7A CN201910472527A CN110219824A CN 110219824 A CN110219824 A CN 110219824A CN 201910472527 A CN201910472527 A CN 201910472527A CN 110219824 A CN110219824 A CN 110219824A
- Authority
- CN
- China
- Prior art keywords
- shaft section
- splined shaft
- spline
- water pump
- gasket
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/043—Shafts
Abstract
The embodiment of the invention discloses a kind of Water pump integral key shaft and its processing methods.Water pump integral key shaft of the invention, it include: splined shaft section, spline gasket and light circular shaft section, splined shaft section and light circular shaft section are separately positioned on the two sides of spline gasket, spline gasket is equipped with the interior colored hole being adapted to splined shaft section, spline gasket is set in the end of splined shaft section, and spline gasket is stretched out in the end face of splined shaft section, the end face of light circular shaft section is fixedly connected with the end face of splined shaft section by friction welding (FW).When Water pump integral key shaft of the invention is processed, splined shaft section is formed after being straightened by stretching and solution treatment.Water pump integral key shaft of the invention is positioned by spline gasket, after positioning accuracy is high, and splined shaft section passes through stretching and solution treatment by profile, is formed through alignment, without milling and extrusion process process, splined shaft intensity height.
Description
Technical field
The present embodiments relate to machinery fields, and in particular to a kind of Water pump integral key shaft and its processing method.
Background technique
Multi-stage water pump refers to the centrifugal pump that the inlet segment of pump and water exit end are combined by pull rod, its output hydraulic pressure
Power is very big, is to obtain centrifugal force by the rotation of impeller, so that material be extracted out.
Multi-stage water pump transmits power generally by pump shaft (splined shaft).Pump shaft is one of key part of multistage pump,
Its dimensional accuracy, straightness and concentricity do not reach requirement such as, and the impeller in water pump will be installed difficulty, and can go out when impeller operation
Now vibration, even stuck phenomenon.
The inventors of the present application found that Water pump integral key shaft in the prior art, splined shaft are integrated, by cutting when processing
Slot is positioned with the methods of positioning sleeve, and position error is big, and the spline of splined shaft by the methods of milling, extruding processing, imitate by processing
Rate is low, and the intensity of splined shaft is poor.
Summary of the invention
The purpose of the present invention is to provide a kind of Water pump integral key shaft and its processing method, positioning accuracy when spline machining
Height, and splined shaft, by drawing and forming, intensity is high.
The embodiment of the present invention provides a kind of Water pump integral key shaft, comprising: splined shaft section, spline gasket and light circular shaft section；
The splined shaft section and the smooth circular shaft section are separately positioned on the two sides of the spline gasket, and the splined shaft
Section, the spline gasket and the smooth concentric setting of circular shaft section；
The spline gasket is equipped with the interior colored hole being adapted to the splined shaft section, and the spline gasket is set in the spline
The end of shaft part, and the spline gasket is stretched out in the end face of the splined shaft section；
The end face of the smooth circular shaft section is fixedly connected with the end face of the splined shaft section by friction welding (FW).
In a kind of feasible scheme, the length that the spline gasket is stretched out in the end face of the splined shaft section is 3mm-6mm.
In a kind of feasible scheme, the material of the splined shaft section is stainless steel.
In a kind of feasible scheme, the outer diameter of the splined shaft section is 17.4mm, and the outer diameter of the spline gasket is
21.5mm, the spline gasket with a thickness of 8mm, the outer diameter of the smooth circular shaft section is 16mm.
The embodiment of the present invention also provides a kind of processing method of Water pump integral key shaft, comprising the following steps:
The profile of S1 preparation spline gasket, light circular shaft section and splined shaft section；
The profile of splined shaft section is carried out stretching and solution treatment by S2；
S3 carries out alignment processing to the splined shaft section after drawn and solution treatment；
Spline gasket is socketed in the end of splined shaft section by S4, and the end face of splined shaft section is made to stretch out the spline gasket
3mm-6mm；
The stationary fixture of S5 friction-welding machine clamps splined shaft section, and the rolling clamp of friction-welding machine clamps light circular shaft section；
S6 opens friction-welding machine, and rolling clamp drives the rotation of light circular shaft section, makes end face and the splined shaft section of light circular shaft section
End face friction welding obtains spline axis blank；
S7 processes to obtain splined shaft finished product according to the spline axis blank.
In a kind of feasible scheme, the material of the splined shaft section is stainless steel.
In a kind of feasible scheme, in step s 2, the stretching and solution treatment include: to stretch and first for the first time
Secondary solution treatment, second of stretching and second of solution treatment and third time stretching and third time solution treatment.
In a kind of feasible scheme, the first time stretching, the drawing stretched for the second time and the third time stretches
Power is greater than 160T, tensile speed 300mm/s；
The temperature of the first time solution treatment, second of solution treatment and the third time solution treatment is 1010
DEG C -- 1150 DEG C, soaking time be 55min -65min, cooling medium is water.
In a kind of feasible scheme, in step s 6, the revolving speed of the rolling clamp of friction-welding machine is 2400r/min, is rubbed
The pressure for wiping welding machine is 40T, weld interval 5-15s.
Based on above scheme it is found that Water pump integral key shaft of the invention, passes through setting splined shaft section, spline gasket and light circular shaft
Section, splined shaft section, spline gasket and the concentric setting of light circular shaft section, and spline gasket are equipped with the interior flower being adapted to splined shaft section
Hole is set in the end of splined shaft section, and spline gasket is stretched out in the end face of splined shaft section, passes through friction with the end face of light circular shaft section
Weldering is fixedly connected.Water pump integral key shaft of the invention is positioned by spline gasket, and positioning accuracy is high, and splined shaft section is led to by profile
It is formed after overstretching and solution treatment, without the process of milling and extrusion process, splined shaft intensity is high.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the Water pump integral key shaft in the embodiment of the present invention one；
Fig. 2 is the schematic cross-section of the splined shaft section of the Water pump integral key shaft in the embodiment of the present invention one；
Fig. 3 is the structural schematic diagram of the spline gasket of the Water pump integral key shaft in the embodiment of the present invention one；
Fig. 4 is the flow process chart of the Water pump integral key shaft in the embodiment of the present invention two.
Figure label:
1, splined shaft section；11, key teeth；2, spline gasket；21, interior colored hole；3 smooth circular shaft sections.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
"front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " axial direction ", " radial direction ", " circumferential direction " etc.
The orientation or positional relationship of instruction is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of the description present invention and letter
Change description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation construct and
Operation, therefore be not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, and be also possible to integral；It can be
Mechanical connection, is also possible to be electrically connected, is also possible to communication connection；It can be and be directly connected to, intermediary can also be passed through
It is indirectly connected with, can be the connection inside two elements or the interaction relationship of two elements, unless otherwise restricted clearly.
For the ordinary skill in the art, can understand as the case may be above-mentioned term in the present invention specifically contain
Justice.
Technical solution of the present invention is described in detail with specifically embodiment below.These specific implementations below
Example can be combined with each other, and the same or similar concept or process may be repeated no more in some embodiments.
Fig. 1 is the structural schematic diagram of the Water pump integral key shaft in the embodiment of the present invention one, and Fig. 2 is in the embodiment of the present invention one
The schematic cross-section of the splined shaft section of Water pump integral key shaft, Fig. 3 are the spline gasket of the Water pump integral key shaft in the embodiment of the present invention one
Structural schematic diagram.As shown in Figure 1 to Figure 3, the Water pump integral key shaft in the present embodiment, comprising: splined shaft section 1,2 and of spline gasket
Light circular shaft section 3.
Splined shaft section 1, spline gasket 2 and light circular shaft section 3 are set gradually from left to right, and splined shaft section 1 and light circular shaft section 3 are divided
Not Wei Yu spline gasket 2 the left and right sides, and splined shaft section 1, spline gasket 2 and light circular shaft section 3 axial line be overlapped.
The centre of spline gasket 2 is equipped with the interior colored hole 21 being adapted to the longitudinal section of splined shaft section 1, spline gasket 2
Interior colored hole 21 is set in the end of the side (right side) of splined shaft section 1, and the end face (right end face) of splined shaft section 1 is made to stretch out flower
The lateral surface of keypad 2.
Splined shaft section 1 stretches out a side end face (right end face) for spline gasket 2 and the end face (left end face) of light circular shaft section 3
It is fixedly connected by way of friction welding.
Through the above it is not difficult to find that the Water pump integral key shaft of the present embodiment, by setting splined shaft section, spline gasket and
Light circular shaft section, splined shaft section, spline gasket and the concentric setting of light circular shaft section, and spline gasket are equipped with and are adapted to splined shaft section
Interior colored hole is set in the end of splined shaft section, and spline gasket is stretched out in the end face of splined shaft section, and the end face with light circular shaft section is by rubbing
Weldering is wiped to be fixedly connected.The Water pump integral key shaft of the present embodiment, spline gasket is arranged between splined shaft section and light circular shaft section, when processing
It is positioned by spline gasket, since spline gasket does not have chamfering, positioning accuracy is good, high in machining efficiency.
Optionally, in the present embodiment, the outer of spline gasket 2 is stretched out in the end face (right end face) of the splined shaft section 1 of splined shaft
The length of side (right side side) is 3mm-6mm.
Optionally, in the present embodiment, the material of splined shaft section 1 is 304 stainless steels.
Optionally, in the present embodiment, splined shaft section 1 is equipped with eight key teeths 11, eight key teeths 11 along it is axial it is uniformly distributed
On the circumference of splined shaft section 1, the outer diameter (diameter at the top of key teeth) of splined shaft section 1 is 17.4mm, and the diameter of 11 root of key teeth is
14.9mm, the outer diameter of spline gasket 2 are 21.5mm, spline gasket 2 with a thickness of 8mm, the outer diameter of light circular shaft section 3 is 16mm.
Fig. 4 is the flow process chart of the Water pump integral key shaft in the embodiment of the present invention two.As shown in figure 4, in the present embodiment
The processing method of Water pump integral key shaft, comprising the following steps:
The profile of S1 preparation spline gasket, light circular shaft section and splined shaft section.
Specifically, splined shaft section and light circular shaft section are commercially available, and the outer diameter of the splined shaft section of purchase is greater than flower
The outer diameter of the finished product outer diameter of key shaft part, the light circular shaft section of purchase is matched with the outer diameter of light circular shaft section finished product, and spline gasket presses drawing
Machined processing obtains.
S2 carries out stretching and solution treatment to the profile of splined shaft section.
Specifically, stretch processing is carried out by stretching-machine to the profile of splined shaft section, by stretching, makes splined shaft section
Outer dimension (sectional dimension) meets drawing requirement.Then solution treatment is carried out to the splined shaft section after stretching, at solid solution
Reason, improves the plasticity and toughness of splined shaft section, improves the mechanical performance of splined shaft section.
S3 carries out alignment processing to the splined shaft section after drawn and solution treatment, and the straightness of splined shaft section is made to meet figure
Paper requirement.
Spline gasket is socketed in the end of splined shaft section by S4, and the end face of splined shaft section is made to stretch out spline gasket 3mm-
6mm。
Specifically, according to the part drawing of splined shaft, according to length requirement to the splined shaft section after light circular shaft section and alignment
Spline gasket, is then socketed in the end of splined shaft section by blanking, and the end face of splined shaft section is made to stretch out spline gasket 3mm-
6mm。
The stationary fixture of S5 friction-welding machine clamps splined shaft section, and the rolling clamp of friction-welding machine clamps light circular shaft section.
Specifically, splined shaft section is fixed on the stationary fixture of friction-welding machine, and light circular shaft section is fixed on friction-welding machine
On rolling clamp, and one end for being cased with spline gasket of splined shaft section and light circular shaft section are close.
S6 opens friction-welding machine, and the rolling clamp of friction-welding machine drives the rotation of light circular shaft section, make the end face of light circular shaft section with
The end face of splined shaft section is connected by way of friction welding, obtains spline axis blank.
S7 processes to obtain splined shaft finished product according to spline axis blank.
Specifically, according to the requirement of the part drawing of splined shaft, lathe clamps splined shaft section, to its of light circular shaft section and axis
He finishes at position, obtains splined shaft finished product.
Through the above it is not difficult to find that the Water pump integral key shaft processing method of the present embodiment, splined shaft section by stretching and
Solution treatment, and formed after being straightened, without milling and extrusion process process, the intensity of splined shaft is high, also improves splined shaft
Processing efficiency.
Optionally, in the present embodiment, the material of splined shaft section is 304 stainless steels.
Further, in the present embodiment, in step s 2, to material for the stretching of the splined shaft section of 304 stainless steels and admittedly
Molten handle includes: to stretch to draw with first time solution treatment, second of stretching and second of solution treatment and third time for the first time
It stretches and third time solution treatment.By stretching three times, the diameter of splined shaft section is gradually become smaller, prevents from producing because one-off drawing forms
Raw too big internal stress destroys the mechanical performance of splined shaft section, and carries out solution treatment after stretching every time, produces stretching every time
Raw internal stress is released.
Further, in the present embodiment, the stretching-machine that stretches through of splined shaft section is carried out, the first time of splined shaft section draws
It stretches, second of pulling force for stretching and stretching for the third time is greater than 160T, tensile speed 300mm/s.
When to the first time solution treatment, second of solution treatment and third time solution treatment of splined shaft section, pass through heating
Furnace to splined shaft section heat, the solid solution temperature of splined shaft section is 1010 DEG C -- 1150 DEG C, soaking time be 55min-
65min.It should be noted that need to generally be preheated twice through 650 DEG C, 800 DEG C in heating furnace, two when splined shaft section solution treatment
The soaking time of secondary preheating is also 55min -65min.Cooling medium when solution treatment is water, i.e. splined shaft section heating and thermal insulation
After the completion, it quickly immerses cooling in screw clamp.
Optionally, in the present embodiment, in step s 5, when friction welding, the revolving speed of the rolling clamp of friction-welding machine is
2400r/min, the pressure of friction welding (FW) is 40T, the time of friction welding (FW) is 5-15s.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that fisrt feature and second feature directly contact or fisrt feature and second feature pass through intermediary mediate contact.
Moreover, fisrt feature can be fisrt feature in second feature above the second feature " above ", " above " and " above "
Directly above or obliquely above, or first feature horizontal height is merely representative of higher than second feature.Fisrt feature is in second feature " it
Under ", " lower section " and " following " can be fisrt feature and be directly under or diagonally below the second feature, or be merely representative of fisrt feature water
Flat height is lower than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc., it is intended that specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or example of anticipating.In addition, without conflicting with each other, this field
Technical staff can by the feature of different embodiments or examples described in this specification and different embodiments or examples into
Row combination and combination.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (9)
1. a kind of Water pump integral key shaft characterized by comprising splined shaft section, spline gasket and light circular shaft section；
The splined shaft section and the smooth circular shaft section are separately positioned on the two sides of the spline gasket, and the splined shaft section, institute
State spline gasket and the smooth concentric setting of circular shaft section；
The spline gasket is equipped with the interior colored hole being adapted to the splined shaft section, and the spline gasket is set in the splined shaft section
End, and the spline gasket is stretched out in the end face of the splined shaft section；
The end face of the smooth circular shaft section is fixedly connected with the end face of the splined shaft section by friction welding (FW).
2. Water pump integral key shaft according to claim 1, which is characterized in that the spline is stretched out in the end face of the splined shaft section
The length of gasket is 3mm-6mm.
3. Water pump integral key shaft according to claim 1, which is characterized in that the material of the splined shaft section is stainless steel.
4. Water pump integral key shaft according to claim 1, which is characterized in that the outer diameter of the splined shaft section is 17.4mm, institute
The outer diameter for stating spline gasket is 21.5mm, the spline gasket with a thickness of 8mm, the outer diameter of the smooth circular shaft section is 16mm.
5. a kind of processing method of Water pump integral key shaft, which comprises the following steps:
The profile of S1 preparation spline gasket, light circular shaft section and splined shaft section；
The profile of splined shaft section is carried out stretching and solution treatment by S2；
S3 carries out alignment processing to the splined shaft section after drawn and solution treatment；
Spline gasket is socketed in the end of splined shaft section by S4, and the end face of splined shaft section is made to stretch out the spline gasket 3mm-
6mm；
The stationary fixture of S5 friction-welding machine clamps splined shaft section, and the rolling clamp of friction-welding machine clamps light circular shaft section；
S6 opens friction-welding machine, and rolling clamp drives the rotation of light circular shaft section, makes the end face of light circular shaft section and the end face of splined shaft section
Friction welding obtains spline axis blank；
S7 processes to obtain splined shaft finished product according to the spline axis blank.
6. the processing method of Water pump integral key shaft according to claim 5, which is characterized in that the material of the splined shaft section is
Stainless steel.
7. the processing method of Water pump integral key shaft according to claim 6, which is characterized in that in step s 2, the stretching
It include: to stretch for the first time and first time solution treatment, second of stretching and second of solution treatment and third with solution treatment
Secondary stretching and third time solution treatment.
8. the processing method of Water pump integral key shaft according to claim 7, which is characterized in that the first time stretches, is described
The pulling force that second of stretching and the third time stretch is greater than 160T, tensile speed 300mm/s；
The temperature of the first time solution treatment, second of solution treatment and the third time solution treatment is 1010 DEG C --
1150 DEG C, soaking time be 55min -65min, cooling medium is water.
9. the processing method of Water pump integral key shaft according to claim 5, which is characterized in that in step s 6, friction-welding machine
The revolving speed of rolling clamp be 2400r/min, the pressure of friction-welding machine is 40T, weld interval 5-15s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910472527.7A CN110219824A (en) | 2019-05-31 | 2019-05-31 | A kind of Water pump integral key shaft and its processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910472527.7A CN110219824A (en) | 2019-05-31 | 2019-05-31 | A kind of Water pump integral key shaft and its processing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110219824A true CN110219824A (en) | 2019-09-10 |
Family
ID=67819304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910472527.7A Pending CN110219824A (en) | 2019-05-31 | 2019-05-31 | A kind of Water pump integral key shaft and its processing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2158440B2 (en) * | 1971-11-25 | 1974-01-24 | Fa. Joh. Moritz Rump, 5990 Altena | Electroplating device, in particular for electroplating bulk parts, with a transportable support frame and a rotating drum attached to it |
| JP4946649B2 (en) * | 2007-06-15 | 2012-06-06 | 日本精工株式会社 | Buffer member for power transmission mechanism and electric power steering device |
| CN102635624A (en) * | 2012-04-18 | 2012-08-15 | 宁波捷成轴业有限公司 | Internal spline shaft and preparation method thereof |
| CN103737264A (en) * | 2013-12-25 | 2014-04-23 | 西安西工大超晶科技发展有限责任公司 | Roll expanding type mechanical plug for nuclear power station vapor generator heat transfer pipe and manufacturing method thereof |
| CN104711498A (en) * | 2013-12-13 | 2015-06-17 | 天津大学 | Control method of surface orange peel effect in second tension forming of high strength aluminium alloy |
| CN104832451A (en) * | 2015-05-28 | 2015-08-12 | 浙江南元泵业有限公司 | Water pump shaft structure |
-
2019
- 2019-05-31 CN CN201910472527.7A patent/CN110219824A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2158440B2 (en) * | 1971-11-25 | 1974-01-24 | Fa. Joh. Moritz Rump, 5990 Altena | Electroplating device, in particular for electroplating bulk parts, with a transportable support frame and a rotating drum attached to it |
| JP4946649B2 (en) * | 2007-06-15 | 2012-06-06 | 日本精工株式会社 | Buffer member for power transmission mechanism and electric power steering device |
| CN102635624A (en) * | 2012-04-18 | 2012-08-15 | 宁波捷成轴业有限公司 | Internal spline shaft and preparation method thereof |
| CN104711498A (en) * | 2013-12-13 | 2015-06-17 | 天津大学 | Control method of surface orange peel effect in second tension forming of high strength aluminium alloy |
| CN103737264A (en) * | 2013-12-25 | 2014-04-23 | 西安西工大超晶科技发展有限责任公司 | Roll expanding type mechanical plug for nuclear power station vapor generator heat transfer pipe and manufacturing method thereof |
| CN104832451A (en) * | 2015-05-28 | 2015-08-12 | 浙江南元泵业有限公司 | Water pump shaft structure |
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