CN207513916U - Pump housing choma positioning and mounting structure - Google Patents
Pump housing choma positioning and mounting structure Download PDFInfo
- Publication number
- CN207513916U CN207513916U CN201721622197.8U CN201721622197U CN207513916U CN 207513916 U CN207513916 U CN 207513916U CN 201721622197 U CN201721622197 U CN 201721622197U CN 207513916 U CN207513916 U CN 207513916U
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- Prior art keywords
- pump housing
- choma
- positioning
- pump
- mounting structure
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Abstract
The utility model discloses a kind of pump housing choma positioning and mounting structures, and including the pump housing, pump cover, bearing, impeller and choma, the pump housing is provided with positioning device in itself and the inner edge at pump cover closing lid, and adapting device is correspondingly arranged on the choma.The technical program has adjusted the positioning and mounting structure of pump housing choma, its position is adjusted to the pump housing and pump cover closing lid, facilitate and positioned when choma is packed into impeller, even if the lower half of the pump housing is in water, also it can very easily be positioned, fixed, be installed, installation, the efficiency safeguarded are improved, while is conducive to the fixation of choma.
Description
Technical field
The utility model belongs to pump body structure technical field.
Background technology
Choma is also sealing ring or wear ring, generally exists on centrifugal pump, is fixed by junction of the edges of two sheets of paper screw, the effect master of choma
If：1st, sealing function adjusts the gap between the pump housing and impeller, prevents port of export medium from flowing back to input end medium, between being somebody's turn to do
Gap is small, then internal leakage is small, efficient, but grazing easily occurs.Gap is big, then internal leakage is big, efficiency is low, but not grazing occurs and shows
As.2nd, wear-resisting effect avoids the damage of impeller and pump case, reduces use cost.It pumps in operation, in use for some time,
Due to containing solid particle, impeller shaking etc. in fair wear and tear, medium, make the radial direction of centrifugal pump impeller choma and sealing ring
Gap becomes larger or occurs the phenomenon that sealing ring breakage, does not have sealing function, causes largely to flow back, reduce the actual flow of pump,
Gap between the pump housing and impeller becomes larger due to wash away and corroding, and does not need to replace impeller at this time, it is only necessary to replace choma
.Choma, which can also select high performance material and pass through reasonably heat treatment, increases surface strength and hardness, and it is wear-resisting to improve its
Property, so as to extend the effective time of pump.
The positioning and mounting structure of existing choma is generally positioned at the bottom of choma and the lower section of impeller, is fixed with the pump housing,
Be packed into impeller during installation, be then fixed, then the structures such as pump cover are installed, this creates the terminal problem, when the pump housing in water
When needing to install or replacing choma, choma is positioned since field operation is bad, so installation effectiveness is relatively low, installation effect
Fruit is bad, affects project progress.
Invention content
In order to solve the bad positioning of the choma of the prior art, it has not been convenient to which the shortcomings that installing, the utility model provide a kind of pump
Body choma positioning and mounting structure, advantage are to facilitate positioning, being capable of Quick overhaul, installation.
Technical solution is used by the utility model solves its technical problem：
Pump housing choma positioning and mounting structure including the pump housing, the pump cover to form an internal cavity is combined with the pump housing, is fixed on
Bearing between the pump housing and pump cover, be fixed on the impeller driven in the internal cavity by bearing and be set to impeller with
Choma between the pump housing/pump cover, inner edge of the pump housing at it is with pump cover closing lid are provided with positioning device, right on the choma
Adapting device should be provided with.
Further, the positioning device is symmetrically disposed on the pump housing upper end opening inner edge of the bearing both sides.
Further, the positioning device is locating slot, and the adapting device is positioning protrusion.
Further, the pump housing is provided with locating slot in itself and the inner edge at pump cover closing lid, and the pump cover is in itself and pump
Inner edge at body closing lid is provided with the second locating slot, and positioning protrusion is provided on the choma, and the lower end of the positioning protrusion is consolidated
Due in locating slot, the upper end of the positioning protrusion is fixed in the second locating slot.
Further, the locating slot be wedge angle triangular pyramidal groove directed downwardly, second locating slot for wedge angle upward
Triangular pyramidal groove, the positioning protrusion for diamond shape protrusion.
Further, the center line of the diamond shape protrusion is vertical with the axis of the bearing.
Further, the positioning device includes being set to location hole at pump housing upper limb and across the location hole
Spiral pin or bolt, the adapting device are the screw hole for being set to choma corresponding position.
Further, the vertical drop of the center line of the screw hole and the horizontal central line of the choma is 7 millimeters.
The beneficial effects of the utility model are：The positioning and mounting structure of pump housing choma is had adjusted, position is adjusted to the pump housing
At pump cover closing lid, facilitate and positioned when choma is packed into impeller, it, also can be very even if the lower half of the pump housing is in water
It easily positioned, fixed, installed, improve installation, the efficiency safeguarded, while be conducive to the fixation of choma.
Description of the drawings
The attached drawing for forming the part of the utility model is used to provide a further understanding of the present invention, this practicality is new
The illustrative embodiments and their description of type do not form the improper restriction to the utility model for explaining the utility model.
In attached drawing：
Fig. 1 is the structure sectional view of the pump housing provided by the utility model；
Fig. 2 is the structure diagram of choma provided by the utility model.
Reference sign
1st, the pump housing；2nd, pump cover；3rd, bearing；4th, impeller；5th, choma
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the utility model can
To be combined with each other.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
With reference to Fig. 1 and Fig. 2, the preferred embodiment of the utility model is described in further detail.
A kind of pump housing choma positioning and mounting structure is present embodiments provided, including the pump housing 1, formation one is combined with the pump housing 1
The pump cover 2 of internal cavity, the bearing 3 being fixed between the pump housing 1 and pump cover 2 are fixed in the internal cavity by 3 band of bearing
Dynamic impeller 4 and the choma 5 being set between 1/ pump cover 2 of impeller 4 and the pump housing, the pump housing 1 is at it is with 2 closing lid of pump cover
Inner edge be provided with positioning device, be correspondingly arranged on adapting device on the choma 5.Further, in order to reduce vibration and stress
It concentrates, improves mounting stability, the positioning device is symmetrically disposed on the 1 upper end opening inner edge of the pump housing of 3 both sides of bearing.
As optional embodiment, the positioning device is locating slot, and the adapting device is positioning protrusion.In order to make
Positioning protrusion as the pump housing 1 and the positioning unit of pump cover 2, improves the adaptation of the pump housing 1 and choma 5, the pump housing 1 is at it simultaneously
Inner edge at 2 closing lid of pump cover is provided with locating slot, it is fixed that inner edge of the pump cover 2 at it is with 1 closing lid of the pump housing is provided with second
Position slot, is provided with positioning protrusion on the choma 5, the lower end of the positioning protrusion is fixed in locating slot, the positioning protrusion
Upper end be fixed in the second locating slot.Further, as optional embodiment, the locating slot is wedge angle directed downwardly three
Pyramid-shaped groove, second locating slot are the triangular pyramidal groove of wedge angle upward, and the positioning protrusion is raised for diamond shape, the knot
Structure is simple in structure more with processing, and rub the power that choma 5 applies choma 5 when can effectively carry 4 rotating of impeller, improves pump
1 operation stability of body.Further, in order to improve 5 fixed stability of choma, center line and the bearing of the diamond shape protrusion
3 axis is vertical.
As optional embodiment, the positioning device includes being set to the location hole at 1 upper limb of the pump housing and passing through
The spiral pin or bolt of the location hole, the adapting device are the screw hole for being set to 5 corresponding position of choma.The program is from the pump housing 1
Outer end carries out choma 5 locking positioning, and choma 5 only needs to process matching hole, and structure and intensity to choma 5 do not impact,
Further, in order to actually mutually agree with water pump, as preferred mode, in the level of the center line of the screw hole and the choma 5
The vertical drop A of line is 7 millimeters, a diameter of 8mm of screw hole, and the material of choma 5 is steel casting iron HT200/ZG230-
450, the width of choma 5 is 25mm, choma 5 internal diameter 230mm, outer diameter 250mm, side 10mm of the screw hole center line from choma 5, another
Side 15mm, in the case of difference in height A, choma 5 is fixed on the pump housing 1, has not only facilitated positioning, fixation, but also can not influence mouth
The self structure of ring 5 and the pump housing 1, avoids impacting the durability of the pump housing 1.
Finally illustrate, above example is only to illustrate the technical solution of the utility model rather than it is limited
System, although the utility model is described in detail with reference to preferred embodiment, those of ordinary skill in the art should manage
Solution, the technical solution of the utility model can be modified or replaced equivalently, without departing from the technical program objective and
Range should all cover in the right of the utility model.
Claims (8)
1. including the pump housing, the pump cover to form an internal cavity is combined with the pump housing for a kind of pump housing choma positioning and mounting structure, fixed
Bearing between the pump housing and pump cover is fixed on the impeller driven in the internal cavity by bearing and is set to impeller
With the choma between the pump housing/pump cover, it is characterised in that：The pump housing is provided with positioning dress in itself and the inner edge at pump cover closing lid
It puts, adapting device is correspondingly arranged on the choma.
2. a kind of pump housing choma positioning and mounting structure according to claim 1, it is characterised in that：The positioning device is symmetrical
It is set to the pump housing upper end opening inner edge of the bearing both sides.
3. a kind of pump housing choma positioning and mounting structure according to claim 1, it is characterised in that：The positioning device is fixed
Position slot, the adapting device are positioning protrusion.
4. a kind of pump housing choma positioning and mounting structure according to claim 3, it is characterised in that：The pump housing is in itself and pump
Inner edge at lid closing lid is provided with locating slot, and the pump cover is provided with the second locating slot, institute in itself and the inner edge at pump housing closing lid
It states and positioning protrusion is provided on choma, the lower end of the positioning protrusion is fixed in locating slot, and the upper end of the positioning protrusion is consolidated
Due in the second locating slot.
5. a kind of pump housing choma positioning and mounting structure according to claim 4, it is characterised in that：The locating slot is wedge angle
Triangular pyramidal groove directed downwardly, second locating slot are the triangular pyramidal groove of wedge angle upward, and the positioning protrusion is diamond shape
Protrusion.
6. a kind of pump housing choma positioning and mounting structure according to claim 5, it is characterised in that：In the diamond shape protrusion
Line is vertical with the axis of the bearing.
7. a kind of pump housing choma positioning and mounting structure according to claim 1, it is characterised in that：The positioning device includes
The location hole and the spiral pin or bolt across the location hole being set at pump housing upper limb, the adapting device is is set to
The screw hole of choma corresponding position.
8. a kind of pump housing choma positioning and mounting structure according to claim 7, it is characterised in that：The center line of the screw hole with
The vertical drop of the horizontal central line of the choma is 7 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721622197.8U CN207513916U (en) | 2017-11-28 | 2017-11-28 | Pump housing choma positioning and mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721622197.8U CN207513916U (en) | 2017-11-28 | 2017-11-28 | Pump housing choma positioning and mounting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207513916U true CN207513916U (en) | 2018-06-19 |
Family
ID=62541913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721622197.8U Active CN207513916U (en) | 2017-11-28 | 2017-11-28 | Pump housing choma positioning and mounting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207513916U (en) |
-
2017
- 2017-11-28 CN CN201721622197.8U patent/CN207513916U/en active Active
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