CN202176470U - Plunger type high pressure pump - Google Patents
Plunger type high pressure pump Download PDFInfo
- Publication number
- CN202176470U CN202176470U CN2011202424486U CN201120242448U CN202176470U CN 202176470 U CN202176470 U CN 202176470U CN 2011202424486 U CN2011202424486 U CN 2011202424486U CN 201120242448 U CN201120242448 U CN 201120242448U CN 202176470 U CN202176470 U CN 202176470U
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- Prior art keywords
- plunger
- push rod
- type high
- pressure pump
- bonnet
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Abstract
The utility model belongs to the field of high pressure pump manufacture, in particular to a plunger type high pressure pump. The plunger type high pressure pump comprises a hydraulic end and a power end, wherein the hydraulic end is provided with a push rod, and the inner part of the hydraulic end is provided with plunger. The plunger type high pressure pump is characterized in that the top end of the push rod is provided with a connecting cavity, and one end of the plunger is arranged in the connecting cavity; a spherical rotating connecting pair is arranged between the top of one end of the plunger positioned in the connecting cavity and the connecting cavity, and the circumference of one end of the plunger positioned in the connecting cavity is provided with radial bumps; a threaded gland is arranged between the plunger and the connecting cavity, and the threaded gland is sheathed on the plunger; and the threaded gland and the radial bumps are closely matched. The plunger type high pressure pump has the beneficial effects that the structure is simple; the connecting mode between the push rod and the plunger is changed, and the spherical rotating connecting pair compensates the tiny errors between the two parts on the axial direction; and a disc spring compensates the tiny errors between the two parts on the radial direction, therefore the abrasion of the push rod and the plunger is reduced, and the service life of the two parts is prolonged.
Description
Technical field
The utility model belongs to high-pressure service pump and makes the field, relates in particular to a kind of plunger type high-pressure pump.
Background technique
High-pressure service pump is applicable to that mainly oil, chemical industry, chemical fertilizer industry use as process pump; Oil field, salt mine are as water injection pump, and steel pipe, pressurized container use as hydraulic test pump; Use as the high-pressure wash scale removal at industrial fields such as building, shipbuilding, chemical industry.At present, 200620078466.4 a kind of five cylinder horizontal piston pump of disclosed Chinese patent is made up of power end and fluid end and base; Power end and fluid end are arranged on the base, and power end is by power input shaft, and eccentric wheel assembly, connecting rod and crosshead constitute; Be fixed with eccentric wheel assembly on the power input shaft; One end of connecting rod is hinged on the eccentric wheel assembly, and the other end and crosshead are hinged, and the other end of crosshead is connected with plunger on the fluid end through push rod.The high pressure pump power end drives crankshaft rotating, promotes plunger and does straight reciprocating motion, is issued to suction liquid purpose in the keying effect of pump head inlet valve.The shortcoming of this device is: because the plunger on push rod and the fluid end adopts directly affixed mode; Because some small errors that produce when making; Make that the kinematic accuracy of push rod and plunger is different, both shaft axiss are difficult for all the time on same axis, under the situation of high-pressure service pump high speed operation; The motion wearing and tearing are comparatively serious, and reduce the working life of component.
The model utility content
The main purpose of the utility model is to overcome the deficiency of above-mentioned technology, and a kind of plunger type high-pressure pump is provided, and through changing the Placement between push rod and plunger, reaches the purpose of the motion wearing and tearing between deceleration component.
The utility model is for realizing above-mentioned purpose; Adopt following technological scheme: a kind of plunger type high-pressure pump; Comprise fluid end and power end, said fluid end is provided with push rod, and said fluid end inside is provided with plunger; It is characterized in that: said push rod top is provided with connection chamber, and said plunger one end is arranged in the said connection chamber; In connection chamber, be provided with the spherical rotation auxiliary connection between top and the connection chamber of an end of plunger; A said end ring week that is arranged in the connection chamber plunger is provided with radial projection; Between plunger and connection chamber, be provided with the union (screwed)bonnet (UB that is used to limit the plunger axial motion, said union (screwed)bonnet (UB is socketed on the plunger and with the inner thread of connection chamber and is connected; Said union (screwed)bonnet (UB and radial projection closely cooperate.
Be provided with plain thrust bearing between said radial projection and union (screwed)bonnet (UB.
Be provided with belleville spring between said plain thrust bearing and union (screwed)bonnet (UB.
Be provided with packing ring between said plain thrust bearing and belleville spring.
Said plunger is by constituting through mutual affixed first plunger and second plunger, and said annular projection is arranged on first plunger.
Said push rod is by constituting through mutual affixed first push rod and second push rod, and said connection chamber is arranged on the top of first push rod.
Leave the gap between said union (screwed)bonnet (UB and plunger.
Be provided with seal ring between said union (screwed)bonnet (UB and plunger.
Said first plunger and second plunger are through being threaded.
First push rod and second push rod are through being threaded.
Beneficial effect: the utility model is simple in structure, and through changing the Placement between push rod and plunger, the spherical rotation auxiliary connection has compensated the slight error between two parts of axial direction; The video disc spring has compensated the slight error between two parts of radial direction, thereby reduces the wearing and tearing of push rod and plunger part, the working life of having improved two parts.
Description of drawings
Fig. 1 is the power end schematic representation in the utility model;
Fig. 2 is the fluid end schematic representation in the utility model;
Fig. 3 is the partial enlarged drawing at the A place among Fig. 2;
Among the figure: 1, fluid end; 2, power end; 3, push rod; 3-1, first push rod; 3-2, second push rod; 4, plunger; 4-1, first plunger; 4-2, second plunger; 5, connection chamber; 6, spherical rotation auxiliary connection; 7, radial projection; 8, union (screwed)bonnet (UB; 9, plain thrust bearing; 10, belleville spring; 11, packing ring; 12, seal ring.
Embodiment
Embodiment below in conjunction with accompanying drawing and preferred embodiment detailed description the utility model.As shown in Figure 1, a kind of plunger type high-pressure pump comprises fluid end 1 and power end 2; Said fluid end is provided with push rod 3, and said fluid end inside is provided with plunger 4, and said push rod top is provided with connection chamber 5; The inwall of connection chamber is provided with internal thread, and said plunger one end is arranged in the said connection chamber; In connection chamber, be provided with spherical rotation auxiliary connection 6 between top and the connection chamber of an end of plunger; Because the existence of spherical rotation auxiliary connection, plunger just can have the slip of circumferencial direction with respect to connection chamber, and a said end ring week that is arranged in the connection chamber plunger is provided with radial projection 7, the effect of radial projection be with plunger axis in being clamped on connection chamber; Between plunger and connection chamber, be provided with the union (screwed)bonnet (UB 8 that is used to limit the plunger axial motion, said union (screwed)bonnet (UB is socketed on the plunger and with the inner thread of connection chamber and is connected; Said union (screwed)bonnet (UB and radial projection closely cooperate, and purpose is in order to be plunger can not have axial direction in connection chamber the big momentum of collecting together.
In order to reduce the friction between plunger and connection chamber and union (screwed)bonnet (UB, between said radial projection and union (screwed)bonnet (UB, be provided with plain thrust bearing 9.For the error of two parts of compensating axial direction, between said plain thrust bearing and union (screwed)bonnet (UB, be provided with belleville spring 10.Also can adopt multi-disc video disc spring assembly in order better to cushion shock-absorbing.In order to reduce the friction between plain thrust bearing and video disc spring, can between said plain thrust bearing and belleville spring, be provided with packing ring 11.
For above-mentioned plunger easy for installation and push rod can separated into two parts; Said plunger is by constituting through the mutual affixed first plunger 4-1 and the second plunger 4-2; Said annular projection is arranged on first plunger, and said first plunger and second plunger are through being threaded.Said push rod is by constituting through the mutual affixed first push rod 3-1 and the second push rod 3-2, and said connection chamber is arranged on the top of first push rod, and first push rod and second push rod are through being threaded.Leave the gap between said union (screwed)bonnet (UB and plunger, only allow to leave less clearance, purpose is in order to reduce the frictional force between plunger and union (screwed)bonnet (UB.Be provided with seal ring 12 between said union (screwed)bonnet (UB and plunger, play the usefulness of doing of waterproof.
Through changing the Placement between push rod and plunger, in two parts joints of axial motion a spherical rotation auxiliary connection and video disc spring are set, the spherical rotation auxiliary connection has compensated the slight error between two parts of axial direction; The video disc spring has compensated the slight error between two parts of radial direction, from but the axis of movement of these two axial motion parts can have the migration of 5 degrees of freedom, reduced the wearing and tearing of push rod and plunger part, improved the working life of two parts.
The above only is the preferred implementation of the utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.
Claims (10)
1. a plunger type high-pressure pump comprises fluid end and power end, and said fluid end is provided with push rod, and said fluid end inside is provided with plunger, it is characterized in that: said push rod top is provided with connection chamber, and said plunger one end is arranged in the said connection chamber;
In connection chamber, be provided with the spherical rotation auxiliary connection between top and the connection chamber of an end of plunger; A said end ring week that is arranged in the connection chamber plunger is provided with radial projection;
Between plunger and connection chamber, be provided with the union (screwed)bonnet (UB that is used to limit the plunger axial motion, said union (screwed)bonnet (UB is socketed on the plunger and with the inner thread of connection chamber and is connected;
Said union (screwed)bonnet (UB and radial projection closely cooperate.
2. plunger type high-pressure pump according to claim 1 is characterized in that: be provided with plain thrust bearing between said radial projection and union (screwed)bonnet (UB.
3. plunger type high-pressure pump according to claim 2 is characterized in that: be provided with belleville spring between said plain thrust bearing and union (screwed)bonnet (UB.
4. plunger type high-pressure pump according to claim 3 is characterized in that: be provided with packing ring between said plain thrust bearing and belleville spring.
5. according to claim 2 or 4 described plunger type high-pressure pumps, it is characterized in that: said plunger is by constituting through mutual affixed first plunger and second plunger, and said annular projection is arranged on first plunger.
6. according to claim 2 or 4 described plunger type high-pressure pumps, it is characterized in that: said push rod is by constituting through mutual affixed first push rod and second push rod, and said connection chamber is arranged on the top of first push rod.
7. plunger type high-pressure pump according to claim 4 is characterized in that: leave the gap between said union (screwed)bonnet (UB and plunger.
8. plunger type high-pressure pump according to claim 7 is characterized in that: be provided with seal ring between said union (screwed)bonnet (UB and plunger.
9. plunger type high-pressure pump according to claim 5 is characterized in that: said first plunger and second plunger are through being threaded.
10. plunger type high-pressure pump according to claim 6 is characterized in that: first push rod and second push rod are through being threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202424486U CN202176470U (en) | 2011-07-12 | 2011-07-12 | Plunger type high pressure pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202424486U CN202176470U (en) | 2011-07-12 | 2011-07-12 | Plunger type high pressure pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202176470U true CN202176470U (en) | 2012-03-28 |
Family
ID=45866354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202424486U Expired - Fee Related CN202176470U (en) | 2011-07-12 | 2011-07-12 | Plunger type high pressure pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202176470U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105311712A (en) * | 2015-11-13 | 2016-02-10 | 南京感控通化工产品经营部 | High-pressure syringe piston butt joint device with jaws |
-
2011
- 2011-07-12 CN CN2011202424486U patent/CN202176470U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105311712A (en) * | 2015-11-13 | 2016-02-10 | 南京感控通化工产品经营部 | High-pressure syringe piston butt joint device with jaws |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120328 Termination date: 20150712 |
|
| EXPY | Termination of patent right or utility model |