CN105864032A - Fuel oil conveying pump with floating type gear shaft - Google Patents
Fuel oil conveying pump with floating type gear shaft Download PDFInfo
- Publication number
- CN105864032A CN105864032A CN201610432530.2A CN201610432530A CN105864032A CN 105864032 A CN105864032 A CN 105864032A CN 201610432530 A CN201610432530 A CN 201610432530A CN 105864032 A CN105864032 A CN 105864032A
- Authority
- CN
- China
- Prior art keywords
- gear shaft
- driven gear
- driving gear
- face
- shaft
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/02—Shafts; Axles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/17—Toothed wheels
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The invention provides a fuel oil conveying pump with a floating type gear shaft. The fuel oil conveying pump comprises a pump body, a rear cover plate, a front cover plate, a driving gear shaft and a driven gear shaft, the rear end of the driving gear shaft and the rear end of the driven gear shaft are rotatably mounted in shaft holes of the rear cover plate, the front end of the driving gear shaft and the front end of the driven gear shaft are rotatably mounted in shaft holes of the front end face of the pump body, a transmission shaft which extends in the axial direction is arranged at the front end of the driving gear shaft, and the transmission shaft penetrates out of a shaft hole of the front cover plate; a first containing cavity is formed among the end face of the rear end of the driving gear shaft, the end face of the rear end of the driven gear shaft and the rear cover plate, a second containing cavity is formed among the end face of the front end of the driven gear shaft, the end face of the pump body and the front cover plate, and a through hole penetrating through the front end and the rear end is formed in the driven gear shaft; the driving gear shaft is meshed with the driven gear shaft in the pump body through a gear, an oil inlet cavity is formed among the left side of the driving gear shaft, the left side of the driven gear shaft and the pump body, and an oil outlet cavity is formed among the right side of the driving gear shaft, the right side of the driven gear shaft and the pump body.
Description
Technical field
The present invention relates to a kind of fuel oil pump.
Background technology
The structure of conventional fuel oil pump is that pump driving gear passes through interference fit, pin key joint transmission with power transmission shaft, this
Planting structure weak point is: pump component is many, assembly process is many, and cost is high, and trouble point is increased；And pump gear is constituted with power transmission shaft
After one entirety, pump gear cannot axial float, the end face making the pump housing and pump cover is easy to wear, thus has influence on the use longevity of pump
Life, and dismounting inconvenience.
Summary of the invention
It is an object of the invention to overcome the above-mentioned deficiency of prior art to provide a kind of floating gear formula fuel oil pump, this
The oil transfer pump of kind of structure solves conventional fuel oil pump pump gear in operation process, and pump gear can not float vertically and lead
Cause to scrape the pump housing or the probability of pump cover end face, improve the reliability of pump, extend the service life of pump.
In order to solve above-mentioned technical problem, the present invention adopts the following technical scheme that a kind of gear shaft floating type fuel oil oil transportation
Pump, it includes the pump housing, back shroud, front shroud, driving gear shaft, driven gear shaft, described driving gear shaft rear end and driven tooth
Wheel shaft rear end is installed in rotation in the axis hole of back shroud, and driving gear shaft front end and driven gear shaft front end are pacified rotationally
Being contained in the axis hole of pump housing front end face, wherein said driving gear shaft front end is provided with the power transmission shaft of axially-extending, described power transmission shaft
Pass from the axis hole of front shroud；The end face of described driving gear shaft rear end and the end face of driven gear shaft rear end and back shroud it
Between be provided with the first cavity volume, be provided with the second appearance between the described end face of driven gear shaft front end and the front end face of the pump housing and front shroud
Chamber, described driven gear shaft is provided with the through hole running through rear and front end；Described driving gear shaft and driven gear shaft are logical in the pump housing
Cross gear to be meshed, form oil suction chamber between described driving gear shaft and the left and right sides of driven gear shaft and the pump housing respectively and go out
Oil pocket.
In technique scheme, due to the end face of driving gear shaft rear end and the end face of driven gear shaft rear end and back shroud
Between be provided with the first cavity volume, be provided with the second cavity volume between the end face of driven gear shaft front end and the front end face of the pump housing and front shroud,
And driven gear shaft is provided with the through hole running through rear and front end, such first cavity volume and the second cavity volume just can pass through driven gear shaft
Through hole communicate, make the pressure of the first cavity volume and the second cavity volume identical, make driving gear shaft and driven gear shaft be in floating type
State.Solving conventional fuel oil pump pump gear in operation process, pump gear can not float vertically and cause the scratch pump housing
Or the problem of pump cover end face, thus improve the reliability of pump, extend the service life of pump.The present invention uses gear simultaneously
Axle, decreases the number of components of assembly and corresponding assembly process, so not only reduces cost, also improve the reliability of pump.When
So, as the equivalent of gear shaft, it would however also be possible to employ pump gear and power transmission shaft assemble.
The further technical scheme of the present invention is: be provided with an intercommunicating pore between described second cavity volume and oil suction chamber.Use
This structure, one is possible to prevent the hypertonia in the first cavity volume and the second cavity volume, two can the interior oil let out lead back into
Hydraulic fluid port, thus improve the volumetric efficiency of pump.
Preferably, described driving gear shaft front end forms a step surface, described step surface and institute with power transmission shaft connecting place
The face area stating driving gear shaft rear end is equal；The face area of described driven gear shaft rear and front end is equal.
Preferably, described driving gear shaft rear end and driven gear shaft rear end are arranged on the axis hole of back shroud by lining
In, driving gear shaft front end and driven gear shaft front end are arranged in the axis hole of pump housing front end face by lining.
Preferably, described front shroud and back shroud are all bonded together with the pump housing by alignment pin and bolt, described protecgulum
It is respectively arranged with O between plate and back shroud and the pump housing, between described front shroud and the power transmission shaft of driving gear shaft, is pressed with oil sealing.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram in the embodiment of the present invention；
Fig. 2 is the plan structure schematic diagram of Fig. 1.
Reference is:
1 pump housing 101 oil suction chamber 102 goes out oil pocket 103 intercommunicating pore
2 back shroud 2A the first cavity volumes
3 front shroud 3A the second cavity volumes
4 driving gear shaft 401 step surfaces
402 driving gear shaft rear end end face 403 power transmission shafts
5 driven gear shaft 5A through holes
501 driven gear shaft front end surface 502 driven gear shaft rear end end faces
6 oil sealing 7 lining 8 alignment pins
9 screw 10 O.
Detailed description of the invention
For the ease of the understanding of those skilled in the art, the present invention is made further with accompanying drawing below in conjunction with embodiment
Bright, that embodiment is mentioned content not limitation of the invention.
In describing the invention, it is to be understood that term " first ", " second " are only used for describing purpose, and can not
It is interpreted as instruction or hint relative importance or the implicit quantity indicating indicated technical characteristic.In description of the invention
In, " multiple " are meant that two or more, unless otherwise expressly limited specifically.In describing the invention, need
Illustrating, unless otherwise prescribed and limit, term " is installed ", " being connected ", " connection " should be interpreted broadly, for example, it may be
It is mechanically connected or electrical connection, it is also possible to be the connection of two element internals, can be to be joined directly together, it is also possible to pass through intermediary
It is indirectly connected to, for the ordinary skill in the art, the concrete meaning of described term can be understood as the case may be.
As shown in Figure 1, 2, the preferred embodiments of the present invention are: a kind of floating type fuel oil pump of gear shaft, it includes pump
Body 1, back shroud 2, front shroud 3, driving gear shaft 4, driven gear shaft 5, front shroud 3 and back shroud 2 are all by alignment pin 8 and spiral shell
Bolt 9 is bonded together with the pump housing 1, is respectively arranged with O 10, after driving gear shaft 4 between front shroud 3 and back shroud 2 and the pump housing 1
The rear end of end and driven gear shaft 5 is installed in rotation in the axis hole of back shroud 2, the front end of driving gear shaft 4 and driven tooth
The front end of wheel shaft 5 is installed in rotation in the axis hole of the pump housing 1 front end face, and wherein the front end of driving gear shaft 4 is provided with and axially prolongs
Long power transmission shaft 403, power transmission shaft 403 passes from the axis hole of front shroud 3, is pressed with oil sealing between front shroud 3 and power transmission shaft 403
6；The first cavity volume 2A it is provided with between driving gear shaft rear end end face 402 and driven gear shaft rear end end face 502 and back shroud 2, from
Being provided with the second cavity volume 3A between movable gear shaft front end surface 501 and the front end face of the pump housing 1 and front shroud 3, driven gear shaft 5 is provided with
Run through the through hole 5A of rear and front end；The front end of driving gear shaft 4 forms a step surface 401, step with power transmission shaft 403 connecting place
Face 401 and driving gear shaft rear end end face 402 area equation；The face area phase of driven gear shaft 5 rear and front end 501,502
Deng；Driving gear shaft 4 and driven gear shaft 5 are meshed by gear in the pump housing 1, driving gear shaft 4 and driven gear shaft 5
Form oil suction chamber 101 between the left and right sides and the pump housing 1 respectively and go out oil pocket 102；It is provided with between second cavity volume 3A and oil suction chamber 101
One intercommunicating pore 103.
As it is shown in figure 1, the rear end of the rear end of driving gear shaft 4 and driven gear shaft 5 is arranged on back shroud 2 by lining 7
Axis hole in, the front end of driving gear shaft 4 and the front end of driven gear shaft 5 are arranged on the axis hole of the pump housing 1 front end face by lining 7
In.
Owing to being provided with first between driving gear shaft rear end end face 402 and driven gear shaft rear end end face 502 and back shroud 2
Cavity volume 2A, is provided with the second cavity volume 3A between driven gear shaft front end surface 501 and the front end face of the pump housing 1 and front shroud 3, and driven
Gear shaft 5 be provided with again the through hole 5A running through rear and front end 501,502, such first cavity volume 2A and the second cavity volume 3A just can pass through from
The through hole 5A of movable gear shaft 5 communicates, and makes the pressure of the first cavity volume 2A and the second cavity volume 3A identical, makes driving gear shaft 4 and driven
Gear shaft 5 is in quick condition.Solving conventional fuel oil pump pump gear in operation process, pump gear can not float vertically
Move and cause the scratch pump housing or the problem of pump cover end face, thus improve the reliability of pump, extend the service life of pump.Simultaneously
The present invention uses gear shaft, decreases the number of components of assembly and corresponding assembly process, so not only reduces cost, also improve
The reliability of pump.Certainly, as the equivalent of gear shaft, it would however also be possible to employ pump gear and power transmission shaft assemble.
Above-described embodiment is the present invention preferably implementation, and in addition, the present invention can realize with alternate manner,
On the premise of conceiving without departing from the technical program, any obvious replacement is all within protection scope of the present invention.
In order to allow those of ordinary skill in the art understand the present invention improvements relative to prior art more easily, this
Some accompanying drawings and the description of invention have been simplified, and for the sake of clarity, present specification is omitted some other yuan
Element, those of ordinary skill in the art it is to be appreciated that these elements omitted also may make up present disclosure.
Claims (5)
1. the floating type fuel oil pump of gear shaft, it is characterised in that: it includes the pump housing (1), back shroud (2), front shroud
(3), driving gear shaft (4), driven gear shaft (5), described driving gear shaft (4) rear end and driven gear shaft (5) rear end can turn
Being arranged in the axis hole of back shroud (2), driving gear shaft (4) front end and driven gear shaft (5) front end are rotatably mounted dynamicly
In the axis hole of the pump housing (1) front end face, wherein said driving gear shaft (4) front end is provided with the power transmission shaft (403) of axially-extending, institute
State power transmission shaft (403) to pass from the axis hole of front shroud (3)；Described driving gear shaft rear end end face (402) and driven gear shaft
The first cavity volume (2A), described driven gear shaft front end surface (501) and the pump housing it is provided with between rear end end face (502) and back shroud
(1) being provided with the second cavity volume (3A) between front end face and front shroud (3), described driven gear shaft (5) is provided with and runs through rear and front end
Through hole (5A)；Described driving gear shaft (4) and driven gear shaft (5) are meshed by gear in the pump housing (1), described active
Form oil suction chamber (101) between gear shaft (4) and the left and right sides of driven gear shaft (5) and the pump housing (1) respectively and go out oil pocket
(102).
The floating type fuel oil pump of gear shaft the most according to claim 1, it is characterised in that: described second cavity volume (3A) and
An intercommunicating pore (103) it is provided with between oil suction chamber (101).
The floating type fuel oil pump of gear shaft the most according to claim 1 and 2, it is characterised in that: described driving gear shaft
(4) front end forms a step surface (401), described step surface (401) and described driving gear shaft with power transmission shaft (403) connecting place
Rear end end face (402) area equation；Described driven gear shaft rear and front end end face (501,502) area equation.
The floating type fuel oil pump of gear shaft the most according to claim 1 and 2, it is characterised in that: described driving gear shaft
(4) rear end and driven gear shaft (5) rear end are arranged in the axis hole of back shroud (2) by lining (7), and driving gear shaft (4) is front
End and driven gear shaft (5) front end are arranged in the axis hole of the pump housing (1) front end face by lining (7).
The floating type fuel oil pump of gear shaft the most according to claim 1 and 2, it is characterised in that: described front shroud (3) and
Back shroud (2) is all bonded together with the pump housing (1) by alignment pin (8) and bolt (9), described front shroud (3) and back shroud (2)
And it is respectively arranged with O (10) between the pump housing (1), presses between the power transmission shaft (403) of described front shroud (3) and driving gear shaft (4)
Equipped with oil sealing (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610432530.2A CN105864032B (en) | 2016-06-17 | 2016-06-17 | A kind of floating type fuel oil pump of gear shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610432530.2A CN105864032B (en) | 2016-06-17 | 2016-06-17 | A kind of floating type fuel oil pump of gear shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105864032A true CN105864032A (en) | 2016-08-17 |
| CN105864032B CN105864032B (en) | 2018-01-02 |
Family
ID=56650703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610432530.2A Active CN105864032B (en) | 2016-06-17 | 2016-06-17 | A kind of floating type fuel oil pump of gear shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105864032B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2578916A3 (en) * | 1985-03-15 | 1986-09-19 | Bosch Gmbh Robert | Reversible geared machine (pump or engine) |
| CN202284539U (en) * | 2011-10-31 | 2012-06-27 | 泊姆克(天津)液压有限公司 | Double-axial gap self compensating high pressure gear pump |
| CN102518587A (en) * | 2011-12-06 | 2012-06-27 | 张意立 | Compensating internal-external gear pump for internal pressure passage |
| CN204283874U (en) * | 2014-11-26 | 2015-04-22 | 杭州萧山东方液压件有限公司 | Marine gear pump |
| CN205744422U (en) * | 2016-06-17 | 2016-11-30 | 湖南机油泵股份有限公司 | A kind of floating type fuel oil pump of gear shaft |
-
2016
- 2016-06-17 CN CN201610432530.2A patent/CN105864032B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2578916A3 (en) * | 1985-03-15 | 1986-09-19 | Bosch Gmbh Robert | Reversible geared machine (pump or engine) |
| CN202284539U (en) * | 2011-10-31 | 2012-06-27 | 泊姆克(天津)液压有限公司 | Double-axial gap self compensating high pressure gear pump |
| CN102518587A (en) * | 2011-12-06 | 2012-06-27 | 张意立 | Compensating internal-external gear pump for internal pressure passage |
| CN204283874U (en) * | 2014-11-26 | 2015-04-22 | 杭州萧山东方液压件有限公司 | Marine gear pump |
| CN205744422U (en) * | 2016-06-17 | 2016-11-30 | 湖南机油泵股份有限公司 | A kind of floating type fuel oil pump of gear shaft |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105864032B (en) | 2018-01-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A gear shaft floating fuel transfer pump Effective date of registration: 20211224 Granted publication date: 20180102 Pledgee: Bank of Beijing Limited by Share Ltd. Changsha branch Pledgor: Hunan Oil Pump Co.,Ltd. Registration number: Y2021430000097 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230105 Granted publication date: 20180102 Pledgee: Bank of Beijing Limited by Share Ltd. Changsha branch Pledgor: Hunan Oil Pump Co.,Ltd. Registration number: Y2021430000097 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A gear shaft floating fuel transfer pump Effective date of registration: 20230130 Granted publication date: 20180102 Pledgee: Bank of Beijing Limited by Share Ltd. Changsha branch Pledgor: Hunan Oil Pump Co.,Ltd. Registration number: Y2023430000008 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |