The high energy-conservation oil pump driven gear of high stable and surface treatment method thereof
Technical field
The present invention relates to a kind of mechanical transmission, be specifically related to a kind of high stationarity, firmly meshing, transmission efficiency is high, and energy saving is strong, and energy consumption is low, and the oil pump driven gear of long service life, belongs to mechanical equipment technical field.
Background technique
Gear is the colyliform mechanical parts of the engagement transmitting torque relying on tooth.Gear by with other dentation mechanical parts (as another gear, tooth bar, worm screw) transmission, can realize change rotating speed and moment of torsion, change moving direction and change the functions such as forms of motion.Gear mechanism is extensive use in industrial products, but its design and manufaction level directly has influence on the quality of industrial products.Gear of the prior art, because structural design is reasonable not, special in oil pump gear, during rotation wearing and tearing relatively serious and meshing be not firm especially, require large gear for driving force, transmission efficiency is lower, energy consumption is higher, the feature of environmental protection is poor, and working life is shorter, and cost is higher.
Therefore, on the basis of existing technology necessary, research and develop a kind of reasonable in design, high stationarity, firmly meshing, not easily skid, transmission efficiency is high, the gear of long service life.
Summary of the invention
Goal of the invention: the object of the invention is to solve the deficiencies in the prior art, provide a kind of reasonable in design, transmission efficiency is high, energy saving is strong, and energy consumption is low, long service life, can meet the oil pump driven gear of high driving force.
Technological scheme: in order to realize object of the present invention, the technical solution used in the present invention is:
The high energy-conservation oil pump driven gear of high stable, it comprises gear, and described gear center offers endoporus, and gear two side is equipped with the first boss, and the first boss is provided with the second boss, and described gear periphery is provided with double wedge; Described endoporus inwall offers and blocks the groove of joining mutually with transmission shaft.
Preferably, the high energy-conservation oil pump driven gear of above-described high stable, described double wedge becomes 30 ~ 60 degree of angles with the central shaft of endoporus.Particularly preferably miter angle.Double wedge provided by the invention becomes into miter angle with central shaft, adopts the double wedge of this structure, meshing more firm between gear and gear, there will not be skidding, and when the transmission of needs larger torque, can ensure that transmission is firm.
Preferably, the high energy-conservation oil pump driven gear of above-described high stable, rounding off between the first described boss and the second boss.
The surface treatment method of the high energy-conservation oil pump driven gear of high stable of the present invention, comprises the following steps:
1) polishing deburring process:
Get oil pump driven gear put into mass concentration be 40 ~ 60% sodium hydroxide solution boil 10 to 20 minutes, remove grease and oxide;
Then to immerse in chromic acid 20 ~ 40 seconds, and then to immerse in caustic potoash and hydrogen peroxide solution 10 ~ 15 minutes, remove metal melt;
Then hydrochloric acid 15mL, nitric acid 15mL, nickelous sulfate 30g is put into, silica 30g, electropolishing in the electrolytic solution that sodium silicate 15g and water 100mL forms, dehydration, oven dry;
2) to step 1) go the process of polishing burr after driven gear carry out carbonitriding process, make infiltration layer be 0.5 ~ 0.8 millimeter;
3) phosphorating treatment, concrete steps are:
Get the hydrochloric acid cleaning 10 ~ 20 minutes that driven gear is first 2 ~ 8mol/L by concentration;
Be the sulfuric acid cleaned 20 ~ 30 minutes of 3 ~ 9mol/L again by concentration;
Clean 20 ~ 30 minutes with the nitric acid that concentration is 3 ~ 12mol/L again;
Be the Zinc phosphate process 10 ~ 30 minutes of 1 ~ 4mol/L again by concentration;
Be the aluminium chloride microwave heating treatment 5 ~ 15 minutes of 6 ~ 12mol/L again by concentration;
Finally be washed till neutrality with clear water, 120 ~ 240 degrees Celsius of oven dry.
Preferably, the surface treatment method of the high energy-conservation oil pump driven gear of above-described high stable,
Step 1) operating voltage of electropolishing is 10 ~ 12 volts, the electropolishing time is 5 ~ 15 seconds, and the temperature of electropolishing is 25 ~ 35 DEG C.
The present invention filters out the composition of polishing fluid and concrete polishing treatment technological method by great many of experiments, whole glossing is workable, electropolishing is effective, especially under the process parameter conditions such as preferred decomposition voltage, time, temperature, can be good at the burr removing gear surface, degree of finish can be made to improve a grade, and the back-geared precision of polishing is high, thus can improve gear quality.
The present invention optimizes composition and the processing time of best etching solution according to great many of experiments, adopt etching solution of the present invention can form one deck compactness in metal surface good, decay resistance is strong, oxidation resistance is strong, the phosphating coating that wear resistance is good, greatly improve the working life of gear, make transmission efficiency higher, energy-conserving and environment-protective.
Beneficial effect: compared to the prior art the high energy-conservation oil pump driven gear of high stable provided by the invention has the following advantages:
1. the high energy-conservation oil pump driven gear of high stable provided by the invention, reasonable in design, high stationarity, firmly meshing, not easily skid, transmission efficiency is high, high driving force of can satisfying the demand, and energy saving is strong, and energy consumption is low, practical.
2. the surface treatment method of the high energy-conservation oil pump driven gear of high stable provided by the invention, best polishing debarring process is filtered out by great many of experiments, carbon nitrogen osmosis process and phosphorization treatment process, whole technological design is reasonable, workable, can obtain precision high, gear corrosion resistant, resistance to oxidation, abrasion-resistant, the oil pump driven gear of the various excellent performance such as energy-efficient performance.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of the high energy-conservation oil pump driven gear of high stable provided by the invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, illustrate the present invention further, these embodiments should be understood only be not used in for illustration of the present invention and limit the scope of the invention, after having read the present invention, the amendment of those skilled in the art to the various equivalent form of value of the present invention has all fallen within the application's claims limited range.
Embodiment 1
As shown in Figure 1, the high energy-conservation oil pump driven gear of a kind of high stable, it comprises gear 1, described gear 1 center offers endoporus 2, gear 2 two side is equipped with the first boss 3, first boss 3 and is provided with the second boss 4, and described gear 1 periphery is provided with double wedge 5; Described endoporus 2 inwall offers and blocks the groove of joining mutually with transmission shaft.
The high energy-conservation oil pump driven gear of above-described high stable, described double wedge 5 becomes 30 ~ 60 degree of angles with the central shaft of endoporus 2.
The high energy-conservation oil pump driven gear of above-described high stable, rounding off between the first described boss 3 and the second boss 4.
Embodiment 2
A surface treatment method for the high energy-conservation oil pump driven gear of high stable, comprises the following steps:
1) polishing deburring process:
Get oil pump driven gear put into mass concentration be 40 ~ 60% sodium hydroxide solution boil 10 minutes, remove grease and oxide;
Then to immerse in chromic acid 20 seconds, and then to immerse in caustic potoash and hydrogen peroxide solution 10 minutes, remove metal melt;
Then hydrochloric acid 15mL, nitric acid 15mL, nickelous sulfate 30g is put into, silica 30g, electropolishing in the electrolytic solution that sodium silicate 15g and water 100mL forms, dehydration, oven dry;
2) to step 1) go the process of polishing burr after driven gear carry out carbonitriding process, make infiltration layer be 0.5 ~ 0.8 millimeter;
3) phosphorating treatment, concrete steps are:
Get the hydrochloric acid cleaning 10 minutes that driven gear is first 2mol/L by concentration;
Be the sulfuric acid cleaned 30 minutes of 3mol/L again by concentration;
20 minutes are cleaned again with the nitric acid that concentration is 3mol/L;
Be the Zinc phosphate process 10 minutes of 1mol/L again by concentration;
Be the aluminium chloride microwave heating treatment 5 minutes of 6mol/L again by concentration;
Finally be washed till neutrality with clear water, 240 degrees Celsius of oven dry.
The surface treatment method of the high energy-conservation oil pump driven gear of above-described high stable, step 1) operating voltage of electropolishing is 10 ~ 12 volts, the electropolishing time is 5 ~ 15 seconds, and the temperature of electropolishing is 25 ~ 35 DEG C.
Embodiment 3
A surface treatment method for the high energy-conservation oil pump driven gear of high stable, comprises the following steps:
1) polishing deburring process:
Get oil pump driven gear put into mass concentration be 40 ~ 60% sodium hydroxide solution boil 20 minutes, remove grease and oxide;
Then to immerse in chromic acid 20 ~ 40 seconds, and then to immerse in caustic potoash and hydrogen peroxide solution 15 minutes, remove metal melt;
Then hydrochloric acid 15mL, nitric acid 15mL, nickelous sulfate 30g is put into, silica 30g, electropolishing in the electrolytic solution that sodium silicate 15g and water 100mL forms, dehydration, oven dry;
2) to step 1) go the process of polishing burr after driven gear carry out carbonitriding process, make infiltration layer be 0.5 ~ 0.8 millimeter;
3) phosphorating treatment, concrete steps are:
Get the hydrochloric acid cleaning 10 minutes that driven gear is first 8mol/L by concentration;
Be the sulfuric acid cleaned 20 minutes of 9mol/L again by concentration;
20 minutes are cleaned again with the nitric acid that concentration is 12mol/L;
Be the Zinc phosphate process 10 minutes of 4mol/L again by concentration;
Be the aluminium chloride microwave heating treatment 5 minutes of 12mol/L again by concentration;
Finally be washed till neutrality with clear water, 120 degrees Celsius of oven dry.
The surface treatment method of the high energy-conservation oil pump driven gear of above-described high stable, step 1) operating voltage of electropolishing is 10 ~ 12 volts, the electropolishing time is 5 ~ 15 seconds, and the temperature of electropolishing is 25 ~ 35 DEG C.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.