CN204677429U - Diesel engine band compact type lubricating oil three screw pump - Google Patents
Diesel engine band compact type lubricating oil three screw pump Download PDFInfo
- Publication number
- CN204677429U CN204677429U CN201520348759.9U CN201520348759U CN204677429U CN 204677429 U CN204677429 U CN 204677429U CN 201520348759 U CN201520348759 U CN 201520348759U CN 204677429 U CN204677429 U CN 204677429U
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- China
- Prior art keywords
- pump
- screw rod
- screw
- pump housing
- diesel engine
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- Expired - Fee Related
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- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to a kind of diesel engine band compact type lubricating oil three screw pump, comprise the pump housing, initiatively screw rod and driven screw, be characterised in that: the pump housing adopts the pump body structure be combined as a whole with lining, the pump housing is provided with imports and exports with built-in relief valve the runner communicated, initiatively screw rod, two driven screw and built-in relief valve are installed in the pump housing, initiatively rolling bearing is equipped with in screw rod one end, is provided with and the pump inlet of eccentric axis and pump discharge in the upper end of the pump housing.Advantage is: the utility model is simple and compact for structure, is convenient to dismounting and takes up room little, and running is reliable, is particularly useful for the place that service clearance on ship is little, inconvenience is keeped in repair and uses.
Description
Technical field
The utility model belongs to industrial pump and manufactures field, particularly relates to a kind of diesel engine band compact type lubricating oil three screw pump.
Background technique
Three screw pump, as the power source of liquid, is extensively installed and is matched in all kinds of lubrication station, hydraulic system and various technical cooling system, be applied to boats and ships, metallurgy, iron and steel, petrochemical industry, electric power and machining etc. multi-field.Use for many years facts have proved, three screw pump all has significant advance than other positive displacement pump existing in all many-sides such as economic benefit, delivery quality, running life and maintainings.In prior art, the active screw rod of three screw pump and driven screw are all mounted in and have in the lining of the pump housing, and two driven screw need realize axial equilibrium of forces by balance set, initiatively bottom screw rod, the back-up ring preventing driven screw axial float are housed.The three screw pump driven screw two ends of this kind of structure are low pressure, and structure relative complex is difficult to ensure high assembly precision.Because on ship, service clearance is limited, inconvenience maintenance.
Summary of the invention
The utility model provides the diesel engine band compact type lubricating oil three screw pump that a kind of compact structure, running are reliable, be convenient to assemble maintenance for solving in known technology the technical problem that exists.
The technological scheme that the utility model is taked for the technical problem existed in solution known technology is:
Diesel engine band compact type lubricating oil three screw pump, comprise the pump housing, initiatively screw rod and driven screw, it is characterized in that: the described pump housing adopts the pump body structure be combined as a whole with lining, the described pump housing is provided with imports and exports with built-in relief valve the runner communicated, initiatively screw rod, two driven screw and built-in relief valve are installed in the described pump housing, described active screw rod one end is equipped with the bearing that can bear and active screw rod remain axial force and diesel engine transmitting portions radial force, the upper end of the described pump housing is provided with and the pump inlet of eccentric axis and pump discharge.
The utility model can also adopt following technological scheme:
Described active screw rod and driven screw are all shaped with concavo-convex, and described active screw rod is mounted by concavo-convex assemble with concavo-convex of driven screw.
Bearing on described active screw rod one end is rolling bearing.
The advantage that the utility model has and good effect are: because the utility model adopts technique scheme, be integrated by the pump housing and lining, in the pump housing, be provided with safety valve runner, compact structure, the pump housing is imported and exported and eccentric axis, meets onsite application requirement.Driven screw two ends are all in low pressure, pressure balance.Driven screw and active screw rod mount by concavo-convex and assemble, and can prevent driven screw axial float.Initiatively rolling bearing is equipped with in screw rod end, can bear the part radial force initiatively screw rod remaining axial force and diesel engine and pass over.The utility model is simple and compact for structure, is convenient to dismounting and takes up room little, is particularly useful for the place that service clearance on ship is little, inconvenience is keeped in repair and uses.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the plan view of Fig. 1.
In figure: 1, the pump housing; 1-1, pump inlet; 1-2, pump discharge; 2, active screw rod; 3, driven screw; 4, rolling bearing; 5, the first supporting bead; 6 second supporting beads; 7, shaft block ring; 8, hole back-up ring; 9, screw; 10, built-in relief valve; 11, runner; 12, concavo-convex.
Embodiment
For summary of the invention of the present utility model, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
It should be noted that, unless otherwise clearly defined and limited, term " first ", " second " etc. do not represent order and install, and do not represent the significance of described element yet.
Refer to Fig. 1 and Fig. 2, diesel engine band compact type lubricating oil three screw pump, comprise the pump housing 1, initiatively screw rod 2 and driven screw 3.The described pump housing adopts the pump body structure with three hole lining functions be combined as a whole with lining, the described pump housing possesses the function of lining simultaneously, and formed with active screw rod, driven screw and seal, the described pump housing is provided with imports and exports with built-in relief valve 10 runner 11 communicated, initiatively screw rod and two driven screw are installed in the described pump housing, and by screw 9, built-in relief valve 10 are housed.Described active screw rod one end is equipped with the bearing that can bear and active screw rod remain axial force and diesel engine transmitting portions radial force, the upper end of the described pump housing is provided with and the pump inlet 1-1 of eccentric axis and pump discharge 1-2.
In the present embodiment, described active screw rod and driven screw are all shaped with concavo-convex 12, described active screw rod is mounted by concavo-convex and driven screw and assembles, and effectively can limit the axial float of driven screw.
Rolling bearing 4, first supporting bead 5, second supporting bead 6, shaft block ring 7 and hole back-up ring 8 described active screw rod one end be equipped with in the present embodiment.
The pump housing and lining being integrated due to the utility model and being shaped with safety valve runner, compact structure, pump inlet and pump discharge and eccentric axis, meet onsite application requirement.Driven screw two ends are all in low pressure, pressure balance.Driven screw prevents driven screw axial float with active screw rod by concavo-convex mounting.Initiatively rolling bearing is equipped with in screw rod end, can bear the part radial force initiatively screw rod remaining axial force and diesel engine and pass over.Initiatively screw rod does not arrange sealing, the oil of leakage can directly leak in gear-box, can not flow to outside, avoid befouling environment.
The embodiment that the utility model accompanying drawing describes is exemplary, only for explaining the utility model, and can not be interpreted as restriction of the present utility model.
Claims (3)
1. a diesel engine band compact type lubricating oil three screw pump, comprise the pump housing, initiatively screw rod and driven screw, it is characterized in that: the described pump housing adopts the pump body structure be combined as a whole with lining, the described pump housing is provided with imports and exports with built-in relief valve the runner communicated, initiatively screw rod, two driven screw and built-in relief valve are installed in the described pump housing, described active screw rod one end is equipped with the bearing that can bear and active screw rod remain axial force and diesel engine transmitting portions radial force, the upper end of the described pump housing is provided with and the pump inlet of eccentric axis and pump discharge.
2. diesel engine band compact type lubricating oil three screw pump according to claim 1, is characterized in that: described active screw rod and driven screw are all shaped with concavo-convex, and described active screw rod is mounted by concavo-convex assemble with concavo-convex of driven screw.
3. diesel engine band compact type lubricating oil three screw pump according to claim 1, is characterized in that: the bearing on described active screw rod one end is rolling bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520348759.9U CN204677429U (en) | 2015-05-26 | 2015-05-26 | Diesel engine band compact type lubricating oil three screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520348759.9U CN204677429U (en) | 2015-05-26 | 2015-05-26 | Diesel engine band compact type lubricating oil three screw pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204677429U true CN204677429U (en) | 2015-09-30 |
Family
ID=54177125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520348759.9U Expired - Fee Related CN204677429U (en) | 2015-05-26 | 2015-05-26 | Diesel engine band compact type lubricating oil three screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204677429U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113511323A (en) * | 2021-04-27 | 2021-10-19 | 中国舰船研究设计中心 | Marine integrated fuel-lubricating oil-seawater pump set device |
-
2015
- 2015-05-26 CN CN201520348759.9U patent/CN204677429U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113511323A (en) * | 2021-04-27 | 2021-10-19 | 中国舰船研究设计中心 | Marine integrated fuel-lubricating oil-seawater pump set device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150930 Termination date: 20180526 |