CN104481874A - Herringbone gear pump - Google Patents
Herringbone gear pump Download PDFInfo
- Publication number
- CN104481874A CN104481874A CN201410707080.4A CN201410707080A CN104481874A CN 104481874 A CN104481874 A CN 104481874A CN 201410707080 A CN201410707080 A CN 201410707080A CN 104481874 A CN104481874 A CN 104481874A
- Authority
- CN
- China
- Prior art keywords
- gear shaft
- double helical
- driven gear
- driving gear
- helical spurgear
- 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.)
- Pending
Links
Classifications
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- 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
- F04C2/16—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 with helical teeth, e.g. chevron-shaped, screw type
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- 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
- F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
-
- 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
- F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
-
- 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
- F04C2240/00—Components
- F04C2240/20—Rotors
-
- 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
- F04C2240/00—Components
- F04C2240/50—Bearings
Abstract
The invention discloses a herringbone gear pump. The gear pump comprises a shell body, a front end cover, a rear end cover, a driving gear shaft, a driven gear shaft, a driving gear and a driven gear, wherein the front end cover and the rear end cover are arranged at the two ends of the shell respectively, the driving gear shaft and the driven gear shaft are arranged in the shell body, and the driving gear and the driven gear are arranged on the driving gear shaft and the driven gear shaft respectively, and are respectively herringbone gears which are meshed with each other. The herringbone gear pump formed according to the scheme is low in operation noise, steady in rotation, low in energy consumption, simple in structure and easy to maintain and preserve, and can be used for effectively solving the problems in the prior art.
Description
Technical field
The present invention relates to a kind of pump, be specifically related to a kind of gear pump.
Background technique
Existing fire-fighting foams pump structure all adopts the design of spur gear, and at axle head, synchromesh gear is housed.There are some problems in such structural design: when being first operation, two pinions are all in engagement, and the noise ratio of spur gear is comparatively large, causes very serious noise pollution to use is on-the-spot.
Secondly due to structurally, its component are many, cause very large workload to follow-up care and maintenance.Finally due to the design of synchromesh gear, need larger power consumption during operation, need larger driving power, waste is caused to the energy.
Summary of the invention
For the design of existing employing spur gear fire-fighting foams pump existing for problem, the object of the present invention is to provide requiredly in a kind of foam fire-fighting engineering can provide more high workload efficiency, runs vibrating noise little, structure be simply easy to safeguard gear pump.
In order to achieve the above object, the present invention adopts following technological scheme:
A kind of double helical spurgear pump, this gear pump comprises housing, front cover, rear end cover, driving gear shaft, driven gear shaft, driving gear, driven gear, housing two ends assemble front cover and rear end cover respectively, driving gear shaft and driven gear shaft are assemblied in housing, and it being respectively fitted with driving gear and driven gear, described driving gear and driven gear are respectively intermeshing double helical spurgear.
In the preferred version of this gear pump, be provided with one-way exhaust mechanism in described front cover and rear end cover, described one-way exhaust mechanism comprises check valve body, spring and steel ball, is equipped with spring in described check valve body, spring moves in check valve body, and spring is arranged with steel ball.
Further, the two ends of described driving gear shaft configure bearing respectively, and stretch out front cover one end and be equipped with Sealing, and the seal is coordinated by lip-type seal and jump ring and forms.
Further, described bearing is ceramic bearing.
Further, the two ends of described driven gear shaft are equipped with axle sleeve.
Further, described front cover and rear end cover are tin bronze end cap.
Further, described driving gear shaft and driven gear shaft are stainless steel gear axle.
Further, described double helical spurgear is phosphor bronze gear.
According to the double helical spurgear pump that such scheme is formed, it is little that it runs noise, stability of rotation, and low in energy consumption, structure is simply convenient to care and maintenance, effectively solves the problem existing for prior art.
Accompanying drawing explanation
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
Fig. 1 is the structural representation of the present inventor's font gear pump.
Embodiment
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the present invention further.
See Fig. 1, it is depicted as the double helical spurgear pump structure schematic diagram that this example provides.As seen from the figure, identical with existing gear pump, the gear pump in this programme, it is whole mainly comprises gear pump case 4, front cover 2, rear end cover 9, driving gear shaft 1, driven gear shaft 3, driving gear 11, driven gear 15.
Wherein, the rear and front end of gear pump case 4 assembles front cover 2 and rear end cover 9 respectively, forms the housing main body of whole gear pump.
Driving gear shaft 1 and driven gear shaft 3 are assemblied in the interior corresponding cavity of housing 4 respectively, be respectively fitted with driving gear 11 and driven gear 15, and driving gear 11 and driven gear 15 engage each other in housing 4 on both it.
In existing gear pump, the problem existing for spur gear is adopted in this example, driving gear 11 in this example and driven gear 15 are double helical spurgear, and man type driving gear 11 and man type driven gear 15 cooperatively interact, and operationally, are both in engagement.
Because spur gear can produce vibration and noise when high speed operation, and helical gear is larger than spur gear bearing capacity, and smooth running, noise are little, be applicable to high speed, heavy load transmission, but shortcoming to produce larger axial force, needs installed thrust bearing, make complex structure.Man type driving gear in this programme is made up of corresponding left-handed helical teeth and dextrorotation helical teeth symmetry, namely merged by two helical gears and form, not only possesses helical gear advantage, effectively axial force is offset by the helical teeth of the two symmetrical distributions in man type, and automatic centering, thus overcome helical gear and can produce this shortcoming of larger axial force.
This programme is when specific implementation, and driving gear shaft 1 and driven gear shaft 3 are stainless steel, and the man type driving gear 11 on it and man type driven gear 15 are made up of phosphor bronze; The front cover 2 coordinated with it and rear end cover 9 are made up of tin bronze.
In addition, rear end cover 9 is provided with a liquid discharging valve 10.
When specifically assembling, the two ends of driven gear shaft 3 are equipped with axle sleeve 8, and two ends are placed in front cover 2 and rear end cover 9 respectively by the axle sleeve 8 on it.
Meanwhile, front cover and rear end cover are provided with one-way exhaust mechanism, for when installing driven gear shaft 3, the gas in front cover and rear end cover are discharged in time, is convenient to the installation of movable gear shaft 3 and ensures the reliability that movable gear shaft 3 is installed.
One-way exhaust mechanism comprises check valve body 5, spring 6 and steel ball 7, check valve body 5 is placed in the exhaust port on front cover and rear end cover, and be equipped with spring in check valve body, spring moves in check valve body, spring is arranged with steel ball, and this steel ball will withstand the suction port of exhaust port under the elastic force effect of spring.
Based on this one-way exhaust mechanism, when driven gear shaft 3 is placed in front cover 2 and rear end cover 9 by axle sleeve 8, due to the cause of sealing, when driven gear shaft 3 is before insertion in end cap 2 or rear end cover 9, in front cover 2 or rear end cover 9, gas cannot be discharged, and will form the gas of certain pressure, when air pressure reaches some strength, to back down steel ball by suction port, Compress Spring, gas will realize the unidirectional discharge of gas in front cover 2 or rear end cover 9 by check valve body; At Exhaust Gas, after air pressure declines, under the effect of spring force, steel ball will be promoted and compress suction port.
For the driving gear shaft 1 in gear pump, its two ends are respectively fitted with bearing 12, and two ends are placed in front cover 2 and rear end cover 9 respectively by the bearing 12 on it, and its middle (center) bearing 12 is specially ceramic bearing.
Front cover 2 is stretched out on the top of driving gear shaft 1, it is also equipped with the lip-type seal 13 and jump ring 14 that match with front cover 2 inwall, is coordinated and forms Sealing, be specially an oil sealing by lip-type seal 13 and jump ring 14.
The gear pump formed thus, adopts the intermeshing design of double helical spurgear, by two helical gears of double helical spurgear left-right rotary, axial force is counteracted, have the feature of automatic centering, and rotate more steady, noise is little.
Simultaneously due to the structural design of double helical spurgear, actual volume when engaging between gear is larger, and operational efficiency is higher.
Moreover the total number of spare parts of this man type gear pump is few, and structural design is compact, is convenient to care and maintenance.
More than show and describe basic principle of the present invention, major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (8)
1. a double helical spurgear pump, this gear pump comprises housing, front cover, rear end cover, driving gear shaft, driven gear shaft, driving gear, driven gear, housing two ends assemble front cover and rear end cover respectively, driving gear shaft and driven gear shaft are assemblied in housing, and it is respectively fitted with driving gear and driven gear, it is characterized in that, described driving gear and driven gear are respectively intermeshing double helical spurgear.
2. a kind of double helical spurgear pump according to claim 1, it is characterized in that, one-way exhaust mechanism is provided with in described front cover and rear end cover, described one-way exhaust mechanism comprises check valve body, spring and steel ball, spring is equipped with in described check valve body, spring moves in check valve body, and spring is arranged with steel ball.
3. a kind of double helical spurgear pump according to claim 1, it is characterized in that, the two ends of described driving gear shaft configure bearing respectively, and stretch out front cover one end and be equipped with Sealing, and the seal is coordinated by lip-type seal and jump ring and forms.
4. a kind of double helical spurgear pump according to claim 3, is characterized in that, described bearing is ceramic bearing.
5. a kind of double helical spurgear pump according to claim 1, it is characterized in that, the two ends of described driven gear shaft are equipped with axle sleeve.
6. a kind of double helical spurgear pump according to claim 1, is characterized in that, described front cover and rear end cover are tin bronze end cap.
7. a kind of double helical spurgear pump according to claim 1, is characterized in that, described driving gear shaft and driven gear shaft are stainless steel gear axle.
8. a kind of double helical spurgear pump according to claim 1, is characterized in that, described double helical spurgear is phosphor bronze gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410707080.4A CN104481874A (en) | 2014-11-27 | 2014-11-27 | Herringbone gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410707080.4A CN104481874A (en) | 2014-11-27 | 2014-11-27 | Herringbone gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104481874A true CN104481874A (en) | 2015-04-01 |
Family
ID=52756456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410707080.4A Pending CN104481874A (en) | 2014-11-27 | 2014-11-27 | Herringbone gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104481874A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519263A (en) * | 2019-01-07 | 2019-03-26 | 西北工业大学 | A kind of power transmission device |
| CN113482912A (en) * | 2021-08-06 | 2021-10-08 | 山东世精液压设备有限公司 | Large-discharge-capacity arc spiral gear pump without axial force |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5553966A (en) * | 1992-09-09 | 1996-09-10 | David Brown Engineering Limited | Connecting a shaft to a bore |
| CN2363091Y (en) * | 1998-03-19 | 2000-02-09 | 机械工业部郑州机械研究所 | Circular and corrected involute tooth high-viscosity gear pump |
| CN2769523Y (en) * | 2005-01-26 | 2006-04-05 | 崔永泉 | Damaged-tooth gear mechanism |
| CN201165998Y (en) * | 2008-01-25 | 2008-12-17 | 长沙天鹅工业泵股份有限公司 | Vertical type pump ceramic bearing |
| JP4688864B2 (en) * | 2005-02-24 | 2011-05-25 | 島津メクテム株式会社 | Gear pump |
| CN103267119A (en) * | 2013-05-24 | 2013-08-28 | 大连理工大学 | Hydro-cylinder piston set block with structure easy to mount and dismount |
| CN103775332A (en) * | 2014-02-10 | 2014-05-07 | 陕西科技大学 | Arc gear pump |
| CN203627404U (en) * | 2013-10-17 | 2014-06-04 | 重庆建设摩托车股份有限公司 | Sealing end cap for cylinders in low-pressure casting equipment |
-
2014
- 2014-11-27 CN CN201410707080.4A patent/CN104481874A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5553966A (en) * | 1992-09-09 | 1996-09-10 | David Brown Engineering Limited | Connecting a shaft to a bore |
| CN2363091Y (en) * | 1998-03-19 | 2000-02-09 | 机械工业部郑州机械研究所 | Circular and corrected involute tooth high-viscosity gear pump |
| CN2769523Y (en) * | 2005-01-26 | 2006-04-05 | 崔永泉 | Damaged-tooth gear mechanism |
| JP4688864B2 (en) * | 2005-02-24 | 2011-05-25 | 島津メクテム株式会社 | Gear pump |
| CN201165998Y (en) * | 2008-01-25 | 2008-12-17 | 长沙天鹅工业泵股份有限公司 | Vertical type pump ceramic bearing |
| CN103267119A (en) * | 2013-05-24 | 2013-08-28 | 大连理工大学 | Hydro-cylinder piston set block with structure easy to mount and dismount |
| CN203627404U (en) * | 2013-10-17 | 2014-06-04 | 重庆建设摩托车股份有限公司 | Sealing end cap for cylinders in low-pressure casting equipment |
| CN103775332A (en) * | 2014-02-10 | 2014-05-07 | 陕西科技大学 | Arc gear pump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519263A (en) * | 2019-01-07 | 2019-03-26 | 西北工业大学 | A kind of power transmission device |
| CN113482912A (en) * | 2021-08-06 | 2021-10-08 | 山东世精液压设备有限公司 | Large-discharge-capacity arc spiral gear pump without axial force |
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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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150401 |