CN105715437A - Gear of fuel oil injection pump - Google Patents
Gear of fuel oil injection pump Download PDFInfo
- Publication number
- CN105715437A CN105715437A CN201410736384.3A CN201410736384A CN105715437A CN 105715437 A CN105715437 A CN 105715437A CN 201410736384 A CN201410736384 A CN 201410736384A CN 105715437 A CN105715437 A CN 105715437A
- Authority
- CN
- China
- Prior art keywords
- gear
- hole
- injection pump
- fuel injection
- axially extending
- 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
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- Rotary Pumps (AREA)
- Fuel-Injection Apparatus (AREA)
- Gears, Cams (AREA)
Abstract
The invention discloses a gear of a fuel oil injection pump and relates to the technical field of parts and components of engines. The gear comprises a gear plate subjected to rustproof treatment. A carburized layer is arranged on the surface of the gear plate. Gear teeth are uniformly distributed on the plate edge of the gear plate. A tooth groove is formed between every two adjacent gear teeth. Arc-shaped chamfers are formed in the bottom and the two sides of each tooth groove. Lightening grooves are formed in the plate surface of the gear plate. Positioning holes and lightening holes are formed in the lightening grooves. An axial through hole is formed in the gear plate. An anti-corrosion layer is arranged on the inner wall of the axial through hole. A groove is formed in the inner wall of the axial through hole. According to the gear, the weight of the gear can be effectively reduced through the design of the lightening holes and the lightening grooves; the gear plate is subjected to the rustproof treatment, the anti-corrosion layer is arranged on the inner wall of the axial through hole, and therefore the rust resistance and corrosion resistance of the gear can be improved; the groove is formed in the inner wall of the axial through hole, a snap spring is arranged in the groove in a matched mode, and the gear and a driving shaft are in close fit through the snap spring; and the abrasion resistance of the gear can be improved through the design of the arc-shaped chamfers of the gear.
Description
Technical field
The present invention relates to the parts technical field of electromotor, especially relate to a kind of fuel injection pump gear.
Background technology
Gear is the gearing parts that engine interior is common, may be mounted in other plant equipment such as electromotor, water pump.Existing fuel injection pump gear weight is heavier, wear and tear between gear bigger, it is caused to vibrate in the course of the work bigger, producing substantial amounts of noise, work long hours in process, coordinating between gear with driving axle closely not there will be loosening, make to drive thrust load relatively larger, vibration is big, and rotary speed unstabilization is fixed, thus having influence on the normal operation of other plant equipment such as electromotor, water pump.Owing to, in the environment through being everlasting inclement condition such as electromotor, water pump, therefore requiring higher for its corrosion resistance.
Summary of the invention
This invention address that said gear is perishable, it is relatively big to wear and tear between heavier-weight, gear and gear coordinates untight problem with driving axle, provide a kind of fuel injection pump gear, this gear structure is simple, be easily achieved, gear weight is light, corrosion-resistant and weares and teares little between gear, gear coordinates closely with driving axle, fills that operational vibration within the engine is little, noise is low, transmission efficiency is high, long service life.
Solve the technical problem that required by the present invention and can be achieved through the following technical solutions:
A kind of fuel injection pump gear, including the wheel disc of antirust treatment, described sheave surface is provided with carburized layer；Described wheel disc dish edge is uniform-distribution with the gear teeth, and being connected between two gear teeth has teeth groove, and teeth groove bottom land both sides are provided with arc angling；Described wheel disc card offers lightening grooves, in described lightening grooves, has hole, location and duplicate removal hole；Described wheel disc is provided with axially extending bore, the inwall of described axially extending bore has corrosion-resistant coating, the inwall of described axially extending bore offers a groove.
The thickness of described carburized layer is 0.5-0.8mm.
Have driving axle from axially extending bore by and with axially extending bore interference fit.
Described wheel disc dish edge offers lightening grooves.
Hole, described location is through hole.
Described duplicate removal hole is through hole.
Described duplicate removal hole is distributed in around axially extending bore radially
The medicine have the advantages that a kind of fuel injection pump gear, simple in construction, be easily achieved, by the design of lightening grooves and duplicate removal hole, can effectively alleviate the weight of gear so that fuel injection pump gear load in transmission process is little, vibrate little, stabilization of speed；Wheel disc antirust treatment, axially extending bore inwall corrosion-resistant coating, the ability of gear rust-proofing and corrosion can be improved；Axially extending bore inwall is provided with groove, is furnished with jump ring in groove, gear with drive axle to be coordinated by jump ring closely to cannot be loosened after；The arc angling design of the gear teeth, can improve gear antiwear property, considerably increase the service life of fuel injection pump gear.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention will be further described:
Fig. 1 is gear structure schematic diagram of the present invention.
Fig. 2 is gear generalized section of the present invention.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and effect and be easy to understand, below in conjunction with being specifically illustrating, the present invention is expanded on further.
When being embodied as, a kind of fuel injection pump gear, in conjunction with Fig. 1 and Fig. 2, including wheel disc 1, the gear teeth 2, teeth groove 3, arc angling 4, hole 5, location, duplicate removal hole 6, axially extending bore 7, corrosion-resistant coating 8, lightening grooves 9, jump-ring slot 10 and lightening grooves 11.
Fuel injection pump gear includes the wheel disc 1 crossed through antirust treatment, and wheel disc 1 is made up of carburizing steel material.Wheel disc 1 surface carries out carbo-nitriding process, and sheave surface forms a carburized layer, and the thickness of carburized layer is 0.5-0.8mm.Being evenly distributed the gear teeth 2 on the dish edge of wheel disc, have teeth groove 3 between two gear teeth being connected, the bottom land both sides of teeth groove 3 are provided with arc angling 4.Gear tooth design has arc angling can reduce the friction between meshing gear, reduces the abrasion of gear, increases the life-span of fuel injection pump gear.
The front and back card of wheel disc offers lightening grooves 9.Hole 5, location and duplicate removal hole 6 is offered in lightening grooves 9.Hole, location and duplicate removal hole are all through hole.Hole 5, location provides gear and the installation location driving axle, it is prevented that gear misplaces with the installation driving axle.Duplicate removal hole has multiple, and duplicate removal hole is distributed in around axially extending bore radially.The dish edge of wheel disc offers lightening grooves 11.The design in lightening grooves and duplicate removal hole is the weight in order to alleviate gear so that it is vibrating little in transmission operation process, rotating speed is steady.
The Center of wheel disc 1 becomes axially extending bore 7, have driving axle from axially extending bore through and with axially extending bore 7 interference fit.The inwall of axially extending bore is provided with corrosion-resistant coating 8, and corrosion-resistant coating can improve gear resistance to corrosion, considerably increases the service life of fuel injection pump gear.Offering a groove on the inwall of wheel disc axially extending bore, this groove is jump-ring slot 10, is furnished with jump ring in jump-ring slot, gear with drive axle to coordinate by jump ring closely to cannot be loosened after so that driving thrust load is smaller, vibrates little, stabilization of speed.
Fuel injection pump gear of the present invention, simple in construction, is easily achieved, and by the design of lightening grooves and duplicate removal hole, can effectively alleviate the weight of gear so that fuel injection pump gear load in transmission process is little, vibrate little, stabilization of speed；Wheel disc antirust treatment, axially extending bore inwall corrosion-resistant coating, the ability of gear rust-proofing and corrosion can be improved；Axially extending bore inwall is provided with groove, is furnished with jump ring in groove, gear with drive axle to be coordinated by jump ring closely to cannot be loosened after；The arc angling design of the gear teeth, can improve gear antiwear property, considerably increase the service life of fuel injection pump gear；Fill that operational vibration within the engine is little, noise is low, compact conformation, transmission efficiency height, long service life, interchangeability are good.
The ultimate principle of the present invention, principal character and advantages of the present invention have more than been shown and described.Skilled person will appreciate that of the industry; the present invention is not restricted to the described embodiments; described in above-described embodiment and description is that principles of the invention is described; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements both fall within the claimed scope of the invention.Claimed scope is defined by appending claims and equivalent thereof.
Claims (7)
1. a fuel injection pump gear, it is characterised in that: including the wheel disc of antirust treatment, described sheave surface is provided with carburized layer；Described wheel disc dish edge is uniform-distribution with the gear teeth, and being connected between two gear teeth has teeth groove, and teeth groove bottom land both sides are provided with arc angling；Described wheel disc card offers lightening grooves, in described lightening grooves, has hole, location and duplicate removal hole；Described wheel disc is provided with axially extending bore, the inwall of described axially extending bore has corrosion-resistant coating, the inwall of described axially extending bore offers a groove.
2. a kind of fuel injection pump gear described in claim 1, it is characterised in that: the thickness of described carburized layer is 0.5-0.8mm.
3. a kind of fuel injection pump gear described in claim 1, it is characterised in that: have driving axle from axially extending bore by and with axially extending bore interference fit.
4. a kind of fuel injection pump gear described in claim 1, it is characterised in that: described wheel disc dish edge offers lightening grooves.
5. a kind of fuel injection pump gear described in claim 1, it is characterised in that: hole, described location is through hole.
6. a kind of fuel injection pump gear described in claim 1, it is characterised in that: described duplicate removal hole is through hole.
7. a kind of fuel injection pump gear described in claim 6, it is characterised in that: described duplicate removal hole is distributed in around axially extending bore radially.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410736384.3A CN105715437A (en) | 2014-12-05 | 2014-12-05 | Gear of fuel oil injection pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410736384.3A CN105715437A (en) | 2014-12-05 | 2014-12-05 | Gear of fuel oil injection pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105715437A true CN105715437A (en) | 2016-06-29 |
Family
ID=56144081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410736384.3A Pending CN105715437A (en) | 2014-12-05 | 2014-12-05 | Gear of fuel oil injection pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105715437A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112713673A (en) * | 2020-12-25 | 2021-04-27 | 中车永济电机有限公司 | Stator clamping ring and lightweight traction motor base with improved structure |
| CN114608500A (en) * | 2022-03-28 | 2022-06-10 | 中新(重庆)超高强材料研究院有限公司 | General utensil of examining of commercial car rim |
-
2014
- 2014-12-05 CN CN201410736384.3A patent/CN105715437A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112713673A (en) * | 2020-12-25 | 2021-04-27 | 中车永济电机有限公司 | Stator clamping ring and lightweight traction motor base with improved structure |
| CN114608500A (en) * | 2022-03-28 | 2022-06-10 | 中新(重庆)超高强材料研究院有限公司 | General utensil of examining of commercial car rim |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160629 |