CN207485996U - A kind of transmission gear of surface toughening carburizing - Google Patents
A kind of transmission gear of surface toughening carburizing Download PDFInfo
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- CN207485996U CN207485996U CN201721247260.4U CN201721247260U CN207485996U CN 207485996 U CN207485996 U CN 207485996U CN 201721247260 U CN201721247260 U CN 201721247260U CN 207485996 U CN207485996 U CN 207485996U
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- gear
- carburizing
- shoe cream
- cream room
- transmission gear
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Abstract
The utility model discloses a kind of transmission gears of surface toughening carburizing, including gear, the periphery of gear is toothed around and tooth socket, the center of gear is equipped with centre bore, gear lubricating structure is further included, gear lubricating structure includes being set to annular shoe cream room, the fuel feed hole being set on the end face of gear and the oil discharge passage being arranged on inside the gear teeth inside gear；The outer surface of gear is additionally provided with manganese phosphate coating layer.The utility model is equipped with gear lubricating structure, using self-contained oil lubrication, keep the oil film between the flank of tooth, avoid gear wear, the outer surface of gear is additionally provided with manganese phosphate coating layer, using the porous oil storage characteristic of coating layer, has better lubricity after gear phosphatization immersion oil, reach reduction friction factor, play the effect of anti-attrition.
Description
Technical field
The utility model is related to a kind of gears, and in particular to a kind of transmission gear of surface toughening carburizing.
Background technology
Speed changer is one of automobile power assembly, and transmission gear is then to realize the vital part that power transmits, more due to
Gear uses under high speed, top load and the continually changing environment of stress alternation for a long time, determines it in addition to normal
Other than abrasion, gear destruction caused by the exceptional conditions such as rigging position offset, lubricating condition deficiency is also had.
In the prior art, lubricating oil can be generally coated on gear, makes to form oil film between the flank of tooth, reduces abrasion.In outside
When lubricating condition is bad, the oil film between mesh tooth face will disappear so that the metal surface of two gears is in direct contact, so as to occur
It mutually bonds, when two flank of tooth continue relative motion, the harder flank of tooth is by the portion of material on the softer flank of tooth along glide direction
It tears to form rill, go down for a long time, the tooth root of gear can be caused to be broken, cause significant impact.
Utility model content
For overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of changes of surface toughening carburizing
Fast device gear, it has the characteristics that, and lubricity is good, friction factor is low and antifriction effect is good.
The purpose of this utility model adopts the following technical scheme that realization：
A kind of transmission gear of surface toughening carburizing, including gear, the periphery of the gear is equipped with wheel
Tooth and tooth socket, the center of the gear are equipped with centre bore, which is characterized in that gear lubricating structure is further included, it is described
Gear lubricating structure includes being set to annular shoe cream room inside the gear, be set on the end face of the gear
Fuel feed hole and the oil discharge passage that is arranged on inside the gear teeth；One end of the oil discharge passage connects with the annular shoe cream room
Logical, the other end is connected through the gear teeth with external environment；One end of the fuel feed hole is connected with the annular shoe cream room,
The other end is connected through the end face of the gear with external environment；The outer surface of the gear is additionally provided with manganese phosphate and covers
Film layer.
Further, the quantity of the annular shoe cream room is one.
Further, the quantity of the fuel feed hole is 4-6, they are uniformly distributed on the end face of the gear；
Each fuel feed hole connects respectively with the annular shoe cream room.
Further, the quantity of the gear teeth is 12-32, and the inside of each gear teeth is all provided with that there are one described fuel-displaced
Channel.
Further, two keyways are additionally provided in the gear, two keyways connect respectively with the centre bore
It is logical.
Further, the thickness of the manganese phosphate coating layer is 5-30 μm.
Compared with prior art, the beneficial effects of the utility model are：
1st, the transmission gear of the utility model is equipped with gear lubricating structure, using self-contained oil lubrication,
The oil film between the flank of tooth is kept, avoids gear wear.It is covered in addition, the outer surface of the gear of the utility model is additionally provided with manganese phosphate
Film layer using the porous oil storage characteristic of coating layer, has better lubricity after gear phosphatization immersion oil, reach reduction friction because
Number plays the effect of anti-attrition.
Description of the drawings
Fig. 1 is the structure diagram of the transmission gear of the utility model；
Fig. 2 is the cut-away view of the transmission gear of the utility model.
In figure：10th, gear；20th, the gear teeth；30th, tooth socket；40th, centre bore；41st, keyway；51st, annular shoe cream room；52、
Oil discharge passage；53rd, fuel feed hole.
Specific embodiment mode
In the following, with reference to attached drawing and specific embodiment mode, the utility model is described further, needs what is illustrated
It is that under the premise of not colliding, can be formed in any combination between various embodiments described below or between each technical characteristic
New embodiment.In addition to specified otherwise, employed in the present embodiment to material and equipment be commercially available.
Embodiment 1：
With reference to Fig. 1-2, a kind of transmission gear of surface toughening carburizing, including gear 10, gear 10
Periphery is toothed around 20 and tooth socket 30, and the center of gear 10 is equipped with centre bore 40；
Gear lubricating structure is further included, gear lubricating structure includes being set to the annular shoe cream room inside gear 10
51st, the oil discharge passage 52 being set on the end face of gear 10 and the fuel feed hole 53 being arranged on inside the gear teeth 20；Fuel feed hole 53
One end connected with annular shoe cream room 51, the other end is connected through the gear teeth 20 with external environment；One end of oil discharge passage 52 with
Annular shoe cream room 51 connects, and the other end is connected through the end face of gear 10 with external environment；The appearance of gear 10
Face is additionally provided with manganese phosphate coating layer.
As preferred embodiment, the quantity of annular shoe cream room 51 is one.
As preferred embodiment, the quantity of oil discharge passage 52 is 6, they are uniformly distributed in the end of gear 10
On face；Each oil discharge passage 52 connects respectively with annular shoe cream room 51.
As preferred embodiment, the quantity of the gear teeth 20 is 32, and the inside of each gear teeth 20 is all provided with that there are one oil inlets
Hole 53.
As preferred embodiment, be additionally provided with two keyways 41 in gear 10, two keyways 41 respectively with center
Hole 40 connects.
As preferred embodiment, the thickness of manganese phosphate coating layer is 25 μm.
Embodiment 2：
The characteristics of the present embodiment is：One layer of layer of molybdenum-disulfide is also coated on manganese phosphate coating layer.It is other with 1 phase of embodiment
Together.
Other embodiments：
The quantity of fuel feed hole is 4,5 or more, they are uniformly distributed on the end face of gear；Each oil inlet
Hole connects respectively with annular shoe cream room.
The quantity of the gear teeth is 12,16,28,32 or more, and the inside of each gear teeth is all provided with that there are one fuel-displaced
Channel.
It is preferential using guarantee quenching degree structural steel production gear to ensure good comprehensive mechanical property.Gear passes through pre-
Oxidation, realization, which is urged, oozes.Heat treatment parameter Precise spraying, thermally treated backgear IGO tissues greatly reduce, and the surface of gear is hard
Degree, centre hardness, metallographic structure and case depth are good.It is handled by suitable compression increase.By making gear surface
One layer of covering has preferable thermal stability manganese phosphate coating layer, and reached and subtracted to store lubricating oil using the porosity characteristic of film layer
Grind effect.Gear ensures that the structural steel of quenching degree is produced using 20CrMnTiH, 16CrMnH etc..Through anti-attrition treated tooth
Wheel maximum load of joining rises to 340Kg by 120Kg.Manganese phosphate overlay film layer thickness can reach 5-30 μm.
Above-described embodiment mode is only the preferred embodiment mode of the utility model, it is impossible to limit the utility model with this
The range of protection, the variation and replacement of any unsubstantiality that those skilled in the art is done on the basis of the utility model
Belong to the utility model range claimed.
Claims (6)
1. a kind of transmission gear of surface toughening carburizing, including gear, the periphery of the gear is toothed around
And tooth socket, the center of the gear are equipped with centre bore, which is characterized in that further include gear lubricating structure, the tooth
Wheel lubrication system includes being set to annular shoe cream room inside the gear, be set on the end face of the gear
Fuel feed hole and the oil discharge passage being arranged on inside the gear teeth；One end of the oil discharge passage is connected with the annular shoe cream room,
Its other end is connected through the gear teeth with external environment；One end of the fuel feed hole is connected with the annular shoe cream room, another
One end is connected through the end face of the gear with external environment；The outer surface of the gear is additionally provided with manganese phosphate overlay film
Layer.
2. the transmission gear of surface toughening carburizing as described in claim 1, which is characterized in that the annular shoe cream room
Quantity is one.
3. the transmission gear of surface toughening carburizing as described in claim 1, which is characterized in that the quantity of the fuel feed hole
It it is 4-6, they are uniformly distributed on the end face of the gear；Each fuel feed hole respectively with the annular shoe cream room
Connection.
4. the transmission gear of surface toughening carburizing as described in claim 1, which is characterized in that the quantity of the gear teeth is
12-32, the inside of each gear teeth are all provided with that there are one the oil discharge passages.
5. the transmission gear of surface toughening carburizing as described in claim 1, which is characterized in that in the gear also
If there are two keyway, two keyways connect respectively with the centre bore.
6. the transmission gear of surface toughening carburizing as described in claim 1, which is characterized in that the manganese phosphate coating layer
Thickness be 5-30 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721247260.4U CN207485996U (en) | 2017-09-26 | 2017-09-26 | A kind of transmission gear of surface toughening carburizing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721247260.4U CN207485996U (en) | 2017-09-26 | 2017-09-26 | A kind of transmission gear of surface toughening carburizing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207485996U true CN207485996U (en) | 2018-06-12 |
Family
ID=62483067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721247260.4U Active CN207485996U (en) | 2017-09-26 | 2017-09-26 | A kind of transmission gear of surface toughening carburizing |
Country Status (1)
| Country | Link |
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| CN (1) | CN207485996U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925385A (en) * | 2019-11-25 | 2020-03-27 | 浙江川益机械有限公司 | Double-chain wheel convenient to lubricate |
-
2017
- 2017-09-26 CN CN201721247260.4U patent/CN207485996U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925385A (en) * | 2019-11-25 | 2020-03-27 | 浙江川益机械有限公司 | Double-chain wheel convenient to lubricate |
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