CN203362512U - Marine low-speed helical gear oil pump unit - Google Patents
Marine low-speed helical gear oil pump unit Download PDFInfo
- Publication number
- CN203362512U CN203362512U CN 201320415258 CN201320415258U CN203362512U CN 203362512 U CN203362512 U CN 203362512U CN 201320415258 CN201320415258 CN 201320415258 CN 201320415258 U CN201320415258 U CN 201320415258U CN 203362512 U CN203362512 U CN 203362512U
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- Prior art keywords
- pump
- gear
- oil
- motor
- helical gear
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- Expired - Fee Related
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- 239000012208 gear oil Substances 0.000 title claims abstract description 16
- 239000003921 oil Substances 0.000 claims abstract description 60
- 230000008878 coupling Effects 0.000 claims description 20
- 238000010168 coupling process Methods 0.000 claims description 20
- 238000005859 coupling reaction Methods 0.000 claims description 20
- 238000005086 pumping Methods 0.000 claims description 11
- 239000000945 filler Substances 0.000 claims description 5
- 210000000078 claw Anatomy 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 claims description 4
- 238000003491 array Methods 0.000 claims description 3
- 239000000806 elastomer Substances 0.000 claims description 3
- 238000012546 transfer Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 abstract 2
- 230000005540 biological transmission Effects 0.000 description 6
- 239000012530 fluid Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The utility model relates to an oil transfer pump unit, in particular to a marine low-speed helical gear oil pump unit. The unit mainly solves the technical problems that when an oil pump on a gear box has a fault in a ship voyage process, no emergency device can replace the pump for working, and safe operation of a ship cannot be ensured in the prior art. The unit comprises a base, wherein the base is connected with a motor, and connected with a helical gear pump by a bracket; the helical gear pump comprises a pump body and a pump cover; a driving shaft is arranged in the pump body, and connected with a driven shaft by a driving gear and a driven gear; the driving gear and the driven gear divide an inner cavity of the pump body into an oil absorption cavity and an oil pressure cavity; an oil inlet communicated with the oil absorption cavity and an oil outlet communicated with the oil pressure cavity are formed on the two sides of the pump body respectively; and the driving shaft is connected with a motor shaft of the motor by a coupler.
Description
Technical field
The utility model relates to a kind of oil transfer pump unit, especially relates to a kind of marine low-speed helical gear oil pump unit.
Background technique
Along with the production development of transport by sea, marine fishing large-tonnage ships, use more and more powerful gear-box on marine machinery, to supporting oil pump, require to have advantages of that flow is large, noise is low, stable drive.Chinese patent discloses a kind of gear box for high-power ship (notice of authorization number: CN 201078440Y), mainly by casing, input shaft parts, ahead running transmission shaft, reversing transmission shaft and output shaft assembly, formed, input shaft, ahead running transmission shaft and reversing transmission shaft and output shaft are arranged on casing by bearing respectively, the input shaft front end links by input flange and highly elastic shaft coupling and power, and input gear is enclosed within on input shaft by interference fit; Clutch gear is fixed on the ahead running oil cylinder by fitting-up bolt, and ahead running oil cylinder and dextrorotation clutch outer member gear, clutch outer member flange join together; Ahead running, the two clutch left sides of moveing backward are supported on bearing, the right is supported on bearing; Outside friction disc on clutch and left-handed clutch outer member gear, dextrorotation clutch outer member gear couplings, inner attrition piece connects with the friction bar; There is piston on one side of clutch, and in spring is housed, piston is connected with hydraulic control system by the hydraulic fluid chamber of ahead running oil cylinder, astern oil bottle; Add interference fit joint by key between friction bar and transmission shaft, driving gear and transmission shaft are made of one; Ahead running and two driving gears of reversing respectively with the output gear engagement, the output gear hot jacket on output shaft, the external output flange of output shaft and screw shaft of ship; The spring of installing in clutch is for there being characteristic curve to be nonlinear butterfly spring, belleville spring consists of five belleville springs, this belleville spring is enclosed within on spring socket sleeve, and spring socket sleeve connects with the lead ring cover for seat by the left-right rotary screw thread, and the lead ring cover for seat is fixed on cylinder body.But the gear-box of this structure is in ship's navigation midway, when the gear-box oiling pump breaks down, there is no a kind of emergency device, can substitute this pump work, can't guarantee the safety of ship operation.
The model utility content
The utility model is to provide a kind of marine low-speed helical gear oil pump unit, it is mainly that the solution prior art is existing in ship's navigation midway, when the gear-box oiling pump breaks down, there is no a kind of emergency device, this pump work can be substituted, the technical problem of safety of ship operation etc. can't be guaranteed.And solve the existing conventional ship of prior art with the oil transfer pump unit when cold oil starts, during due to the cold oil state, oil viscosity is high, conventional four utmost point motor speeds are higher, thereby cause the oil suction difficulty and cause the unit running noise is large in earlier stage; During low speed, the technical problem that flow, Output pressure are not steady etc.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
Marine low-speed helical gear oil pump unit of the present utility model, comprise base, described base is connected with motor, base also is connected with helical-gear pump by support, helical-gear pump includes the pump housing, pump cover, be provided with driving shaft in the pump housing, driving shaft is connected with driven shaft by driving gear, driven gear, driving gear, driven gear are divided into oil sucting cavity, pumping cavity by pump housing inner chamber, the both sides of the pump housing are respectively equipped with the filler opening that is communicated with oil sucting cavity, the oil outlet that is communicated with pumping cavity, and driving shaft is connected with the motor shaft of motor by coupling.The utility model mainly consists of helical gear oil pump, coupling arrangement, motor three parts, oil pump band safety valve.The power source of motor passes to oil pump by coupling, and motor is motor special peculiar to vessel, is generally totally-enclosed from fanning cold type three-phase cage asynchronous motor peculiar to vessel.Driving shaft and driving gear adopt key connecting, and driven shaft is that hot jacket connects with driven gear, and the pump housing and pump cover fixedly are connected as a single entity by screw.Oil pump is screwed on support by pump cover, and the coupling that the oil pump drive shaft end is equipped with on coupling and motor shaft links together with the claw type block rubber, reaches the purpose that electrical power source is passed to oil pump.Support and motor all are fixed by screws on base, and base is provided with 4 footing screws, and the actual conditions of visual installing space are installed unit in place.
As preferably, the wheel tooth module of described driving gear, driven gear is 4.5-8mm, and the number of teeth is 9-10, and coefficient of facewidth is 1.25-1.58.The modulus of the gear teeth of driving and driven gear is larger, make that its engagement driving has that noise is low, stable drive superperformance.
As preferably, described motor is slow-revving 6-pole motor.Thereby the assurance oil pump is worked under lower rotating speed, has improved the working life of oil pump, and has greatly reduced unit noise in the running.
As preferably, described coupling is the three-jaw coupling, and motor adopts the claw type elastomer block to be connected with the three-jaw coupling with the helical gear pump housing, greatly reduces the required precision to assembling, and has effectively improved the reliability of assembling.
As preferably, the junction plane place of the described pump housing and pump cover is provided with the compensating groove of symmetric arrays along driving gear, driven gear line of contact direction, and compensating groove is each two, both sides.Compensating groove is set and has solved that helical gear engagement overlap coefficient is large, the not smooth defect of off-load, reached control off-load amount, improve the purpose of volumetric efficiency.
As preferably, the described pump housing is connected with safety valve, and safety valve includes valve body, the valve gap be connected with the pump housing, and oil sucting cavity, pumping cavity are communicated with valve inner, and the inner chamber of valve body and valve gap is equipped with spool and spring.When the pressure that enters the hydraulic system of gear-box when fluid reaches maximum pressure 2.5MPa, enter the active force that valve body internal pressure oil overcomes spring, promote spool and open passage, enter oil sucting cavity, prevent system overload, the safety of protection oil pump and system.
As preferably, be connected with sliding bearing between the axle body of the described pump housing, pump cover and driving shaft, be connected with double-row angular contact bal bearing between the input end of pump cover and driving shaft, and sealed with outside framework oil seal.Stationarity and reliability while having increased driving shaft work.
Therefore, the utlity model has that noise is low, stable drive, rotating speed is low, high reliability is high characteristics; Connecting device structure of the present utility model is simple, volume is little, use is reliable, extremely meets the characteristics such as specific (special) requirements of marine machinery installing space compactness.
The accompanying drawing explanation
Accompanying drawing 1 is a kind of structural representation of the present utility model;
Accompanying drawing 2 is a kind of structural representations of helical gear oil pump;
Accompanying drawing 3 is side structure schematic diagram of Fig. 2;
The structural representation of accompanying drawing 4 pump cover compensating grooves;
The structural representation of accompanying drawing 5 pump housing compensating grooves;
Accompanying drawing 6 is the utility model operation of oil pump schematic diagrams.
Component, position and numbering in figure: base 1, motor 2, support 3, the pump housing 4, pump cover 5, driving shaft 6, driving gear 7, driven gear 8, driven shaft 9, oil sucting cavity 10, pumping cavity 11, filler opening 12, oil outlet 13, coupling 14, compensating groove 15, valve body 16, valve gap 17, spool 18, spring 19, sliding bearing 20, double-row angular contact bal bearing 21, outside framework oil seal 22.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: the marine low-speed helical gear oil pump unit that this is routine, as Fig. 1, comprise base 1, base is connected with motor 2, and motor is motor special peculiar to vessel, is totally-enclosed from fanning cold type three-phase cage asynchronous motor peculiar to vessel, and it is slow-revving 6-pole motor.Base also is connected with helical-gear pump by support 3, as Fig. 2, Fig. 3, helical-gear pump includes the pump housing 4, pump cover 5, be provided with driving shaft 6 in the pump housing, driving shaft is connected with driven shaft 9 by driving gear 7, driven gear 8, the wheel tooth module of driving gear, driven gear is 4.5-8mm, and the number of teeth is 9-10, and coefficient of facewidth is 1.25-1.58.Driving gear, driven gear are divided into oil sucting cavity 10, pumping cavity 11 by pump housing inner chamber, the both sides of the pump housing are respectively equipped with the filler opening 12 that is communicated with oil sucting cavity, the oil outlet 13 that is communicated with pumping cavity, the pump housing is connected with safety valve, safety valve includes valve body 16, the valve gap 17 be connected with the pump housing, oil sucting cavity 10, pumping cavity 11 are communicated with valve inner, and the inner chamber of valve body and valve gap is equipped with spool 18 and spring 19.Driving shaft is connected with the motor shaft of motor by coupling 14, and coupling is the three-jaw coupling, and motor adopts the claw type elastomer block to be connected with the three-jaw coupling with helical-gear pump.As Fig. 4, Fig. 5, the junction plane place of the pump housing and pump cover is provided with the compensating groove 15 of symmetric arrays along driving gear 7, driven gear 8 line of contact directions, and compensating groove is each two, both sides.Be connected with sliding bearing 20 between the axle body of the pump housing, pump cover and driving shaft, be connected with double-row angular contact bal bearing 21 between the input end of pump cover and driving shaft, and sealed with outside framework oil seal 22.
During use, during starting electrical machinery 2, power source drives oil pump drive shaft 6 rotations by coupling 14, and pressure oil enters gearbox hydraulic system through oil pipe.As Fig. 6, driving gear 7 rotates in the direction of arrows, the gear teeth that meshing in oil sucting cavity 10 are thrown off gradually and are increased sealed volume, form parital vacuum, fluid, under the atmospheric pressure effect, enters oil sucting cavity 10 through oil pipe from filler opening 12, the gear teeth mesh in succession, the volume reducing when gear teeth enter between cog, the fluid that is brought to pumping cavity 11 by oil sucting cavity is forced out pump from oil outlet 13, enters the hydraulic system of gear-box through oil pipe.The valve body 16 of safety valve connects the pump housing 4; when the pressure that enters the hydraulic system of gear-box when fluid reaches maximum pressure 2.5MPa; enter the active force that valve body 16 internal pressure oil overcome spring 19; promote spool 18 and open passage; enter oil sucting cavity 10; prevent system overload, the safety of protection oil pump and system.
The foregoing is only specific embodiment of the utility model, but structure characteristic of the present utility model is not limited to this, any those skilled in the art is in field of the present utility model, and the variation of doing or modification all are encompassed among the scope of the claims of the present utility model.
Claims (7)
1. a marine low-speed helical gear oil pump unit, comprise base (1), it is characterized in that described base (1) is connected with motor (2), base also is connected with helical-gear pump by support (3), helical-gear pump includes the pump housing (4), pump cover (5), be provided with driving shaft (6) in the pump housing, driving shaft is by driving gear (7), driven gear (8) is connected with driven shaft (9), driving gear, driven gear is divided into oil sucting cavity (10) by pump housing inner chamber, pumping cavity (11), the both sides of the pump housing are respectively equipped with the filler opening (12) that is communicated with oil sucting cavity, the oil outlet (13) that is communicated with pumping cavity, driving shaft is connected with the motor shaft of motor by coupling (14).
2. marine low-speed helical gear oil pump unit according to claim 1, is characterized in that the wheel tooth module of described driving gear (7), driven gear (8) is 4.5-8mm, and the number of teeth is 9-10, and coefficient of facewidth is 1.25-1.58.
3. marine low-speed helical gear oil pump unit according to claim 1 and 2, is characterized in that described motor (2) is slow-revving 6-pole motor.
4. marine low-speed helical gear oil pump unit according to claim 1 and 2, is characterized in that described coupling (14) is the three-jaw coupling, and motor (2) adopts the claw type elastomer block to be connected with the three-jaw coupling with the helical gear pump housing.
5. marine low-speed helical gear oil pump unit according to claim 1 and 2, it is characterized in that the described pump housing (4) and the junction plane place of pump cover (5) are provided with the compensating groove (15) of symmetric arrays along driving gear (7), driven gear (8) line of contact direction, compensating groove is each two, both sides.
6. marine low-speed helical gear oil pump unit according to claim 1 and 2, it is characterized in that the described pump housing (4) is connected with safety valve, safety valve includes valve body (16), the valve gap (17) be connected with the pump housing, oil sucting cavity (10), pumping cavity (11) are communicated with valve inner, and the inner chamber of valve body and valve gap is equipped with spool (18) and spring (19).
7. marine low-speed helical gear oil pump unit according to claim 1 and 2, it is characterized in that being connected with sliding bearing (20) between the axle body of the described pump housing (4), pump cover (5) and driving shaft (6), be connected with double-row angular contact bal bearing (21) between the input end of pump cover and driving shaft, and sealed with outside framework oil seal (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320415258 CN203362512U (en) | 2013-07-12 | 2013-07-12 | Marine low-speed helical gear oil pump unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320415258 CN203362512U (en) | 2013-07-12 | 2013-07-12 | Marine low-speed helical gear oil pump unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203362512U true CN203362512U (en) | 2013-12-25 |
Family
ID=49810289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320415258 Expired - Fee Related CN203362512U (en) | 2013-07-12 | 2013-07-12 | Marine low-speed helical gear oil pump unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203362512U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971873A (en) * | 2015-03-12 | 2016-09-28 | 株式会社昭和 | Pump apparatus and marine vessel propelling machine |
| CN110192775A (en) * | 2019-06-25 | 2019-09-03 | 丹顶鹤智能科技(江苏)有限公司 | A kind of milk foam pump assembly |
| CN113153735A (en) * | 2021-05-20 | 2021-07-23 | 江苏南沃液压科技有限公司 | Test fixing structure for gear pump and mounting method thereof |
-
2013
- 2013-07-12 CN CN 201320415258 patent/CN203362512U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971873A (en) * | 2015-03-12 | 2016-09-28 | 株式会社昭和 | Pump apparatus and marine vessel propelling machine |
| CN110192775A (en) * | 2019-06-25 | 2019-09-03 | 丹顶鹤智能科技(江苏)有限公司 | A kind of milk foam pump assembly |
| CN113153735A (en) * | 2021-05-20 | 2021-07-23 | 江苏南沃液压科技有限公司 | Test fixing structure for gear pump and mounting method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131225 |
|
| CX01 | Expiry of patent term | ||
| CU01 | Correction of utility model |
Correction item: Termination upon expiration of patent Correct: Revocation of Patent Expiration and Termination False: On July 28, 2023, the expiration and termination of the 39-volume 3002 patent Number: 30-02 Volume: 39 |
|
| CU01 | Correction of utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 |