CN204646666U - A kind of compressing hot pump spiral main frame helical tooth and compressing hot pump spiral main frame - Google Patents
A kind of compressing hot pump spiral main frame helical tooth and compressing hot pump spiral main frame Download PDFInfo
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- CN204646666U CN204646666U CN201520114734.2U CN201520114734U CN204646666U CN 204646666 U CN204646666 U CN 204646666U CN 201520114734 U CN201520114734 U CN 201520114734U CN 204646666 U CN204646666 U CN 204646666U
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- tooth
- screw tooth
- main frame
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- female screw
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Abstract
The utility model discloses a kind of compressing hot pump spiral main frame helical tooth, can process by finish-milling, comprising male screw tooth and female screw tooth, the flank profil of male screw tooth and female screw tooth is bilateral asymmetric helical tooth molded line, constituent curve is circular arc and envelope thereof, it is characterized in that: described male screw tooth and the gear ratio of female screw tooth are 5:6, the conjugated gap, flank profil space of male screw tooth and female screw tooth is 0.04mm ~ 0.06mm.The curve of the utility model adjacent both ends composition flank profil adopts tangent slope transition in joint, and space curved surface Line of contact is short, and the little pressure film that is conducive to of enclosed volume is formed, and can eliminate processing cusp, repeat a little and discontinuous point, form smooth transition; Rounding process is adopted, finish-milling processing of being more convenient for by tooth root and tooth top coordinate; Effectively reduce power loss and provide efficient spatial zero to zero sealing contact zones, between cog area utilization is high, and in streamlined, aerodynamical resistance is little, can obtain higher efficiency.
Description
Technical field
The utility model belongs to field of mechanical technique, is specifically related to a kind of compressing hot pump spiral main frame helical tooth and compressing hot pump spiral main frame.
Background technique
The spiral main frame operational security of optimal design is reliable, therefore obtains applying more and more widely in industrial department.Existing spiral main frame rated power is generally below 110kw, and rated pressure scope 5kg ~ 13kg is middle pressure.
The optimal design of spiral flank profil and precision machining and cutting-tool engineering are depended in the development of spiral main frame to a great extent.Along with the development of Numeric Control Technology, computer technology, machine tool technology and tool sharpening process engineering, former traditional helical tooth cylindrical is mostly within 200mm, the spiral tooth Profile Design of most dependence on import equipment fine grinding can produce high original input cost, can not meet the basic demand of client, user is under the market competition of processing cost, efficiency and precision high request, being necessary to carry out can the research and development of finish-milling spiral flank profil and optimal design, and reaches the real economy benefit of volume production.
Model utility content
One of the purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of high-precision compressing hot pump spiral main frame helical tooth.
For realizing above object, the utility model is achieved through the following technical solutions:
A kind of compressing hot pump spiral main frame helical tooth, comprise male screw tooth and female screw tooth, described male screw tooth and the flank profil of female screw tooth are bilateral asymmetric helical tooth molded line, constituent curve is circular arc and envelope thereof, described male screw tooth and the gear ratio of female screw tooth are 5:6, and the conjugated gap, flank profil space of male screw tooth and female screw tooth is 0.04mm ~ 0.06mm.Male screw tooth, female screw tooth central point are separately true origin, and its flank profil coordinate is as follows:
In above-mentioned a kind of typical compression heat pump spiral main frame helical tooth, observe male screw tooth and female screw tooth from output terminal, described male screw tooth right side rotation direction be left-handed, described female screw tooth at left side spin to being dextrorotation.
In above-mentioned a kind of typical compression heat pump spiral main frame helical tooth, the conjugated gap of flank profil spatial design of described male screw tooth and female screw tooth is 0.053mm.
In above-mentioned a kind of compressing hot pump spiral main frame helical tooth, the profile accuracy after described male screw tooth and female screw tooth finish-milling controls within 15um.
In above-mentioned a kind of compressing hot pump spiral main frame helical tooth, the controlled tooth-face roughness Ra0.8um ~ 1.0um after described male screw tooth and female screw tooth finish-milling.
One of the purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of high performance-price ratio, can the compressing hot pump spiral main frame produced quantitatively of finish-milling.
For realizing above object, the utility model is achieved through the following technical solutions:
Compressing hot pump spiral main frame, is characterized in that: comprise aforesaid compressing hot pump spiral main frame helical tooth.
The utility model compared with the existing technology, the curve of adjacent both ends composition flank profil adopts tangent slope transition in joint, and space curved surface Line of contact is short, and the little pressure film that is conducive to of enclosed volume is formed, processing cusp can be eliminated, repeat a little and discontinuous point, form smooth transition; Rounding process is adopted, finish-milling processing of being more convenient for by tooth root and tooth top coordinate; Effectively reduce power loss and provide space zero to zero efficient sealed band, between cog area utilization is high, and in streamlined, aerodynamical resistance is little, can obtain higher efficiency.
Compared with the existing technology, compressing hot pump spiral main engine power and load are larger, pressure can be brought up to more than 13 kilograms high pressure, and can cover 3 ~ 5 kilograms of low pressure for the utility model.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the utility model spiral main frame plan view.
Fig. 3 is the utility model spiral main frame right elevation.
Fig. 4 is the utility model spiral main frame plan view.
Fig. 5 is the flank profil coordinate schematic diagram of male screw tooth of the present utility model.
Fig. 6 is the flank profil coordinate schematic diagram of female screw tooth of the present utility model.
Number in the figure illustrates:
1, male screw tooth; 2, female screw tooth; 3, housing; 4, suction end; 5, exhaust end; 6, suction port; 7, relief opening; 8, live axle.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
As shown in Figure 1, a kind of compressing hot pump spiral main frame comprises helical tooth, described helical tooth comprises male screw tooth 1 and female screw tooth 2, described male screw tooth 1 and the flank profil of female screw tooth 2 are bilateral asymmetric helical tooth molded line, constituent curve is circular arc and envelope thereof, the number of teeth of described male screw tooth 1 is 5, the number of teeth of female screw tooth 2 is 6, the conjugated gap of flank profil spatial design of described male screw tooth 1 and female screw tooth 2 is 0.053mm, consider machining accuracy level of control, the conjugated gap, flank profil space of male screw tooth 1 and female screw tooth 2 can be relaxed to 0.04mm ~ 0.06mm.
As in Figure 2-4, the utility model compressing hot pump spiral main frame also comprises housing 3 and live axle 8, described housing 3 also offers suction port 6 and relief opening 7, described housing 3 is suction end 4 near live axle 8 side, the other end is exhaust end 5, this compressing hot pump spiral main frame is output terminal near exhaust end side, i.e. male screw tooth axle, male screw tooth 1 and female screw tooth 2 is observed from output terminal direction, male screw tooth 1 is left-handed in right side rotation direction, described female screw tooth 2 at left side spin to being dextrorotation, arrangement like this can reduce gearbox configuration, dock with prime mover engine block direct connection, transmission efficiency can be improved, greatly reduce product cost, axial air-breathing can be changed into from radial suction simultaneously, also can be inverted suction and exhaust ports, reduce noise result remarkable.
The highi degree of accuracy flank profil that the helical tooth outside diameter of the utility model finish-milling can reach more than 200mm is blank at present at home, because multiple tooth 5:6 space is conjugated, there is fine intensity, design flank profil can be uniformly distributed driving torque better, reduce thermal distortion ratio, compressing hot pump spiral main engine power can arrive 132kw ~ 220kw, and comparatively prior art improves more than 90%; After the tooth top of profile of tooth and tooth root carry out rounding process, be convenient to cutter tool section and spell cloth, after finish-milling, also have enough rigidity and intensity, be not easy temperature distortion, can bear more than 16kg high pressure, comparatively prior art improves more than 100%; Because profile of tooth has the space zero of cooling and lubricating to be 0.1 ~ 0.2mm to zero contact zones width, lubrication is lowered the requirement, so less than 3 ~ 5 kilograms can be covered.
The parameter of the utility model typical case type is as follows: the drive shaft speed scope 1500 ~ 4800rpm of spiral male screw tooth 11; Fuel injection quantity 125 ~ 280L; Material is No. 45 Hardened And Tempered Steel bars or QT spheroidal graphite casting; Spiral male screw tooth 1 flank profil external diameter is Φ 235 ± 35mm; Slenderness ratio is 1.3 ~ 2.1; Spiral angle 240 ° ~ 300 °; The space zero of cooling and lubricating is had to be 0.1 ~ 0.2mm to zero contact zones width; The conjugated gap, flank profil space of sun female screw tooth 2 is 0.04 ~ 0.06mm, centre distance sun difference is ± 0.015mm, spiral flank profil detector for outer diameter error is less than ± 0.015mm, the error of full helical pitch is less than ± 0.015mm, the error of calibration is less than ± 0.015mm, and degree of finish is Ra0.8 ~ 1.0; Dynamic balancing G2.5 level, suction side does not need chamfering.
As seen in figs. 5-6, the respective central point of male screw tooth 1, female screw tooth 2 is true origin, and its flank profil coordinate is as follows:
The utility model innovation is that conjugation pitch circle takes zero to form efficient spatial sealing Line of contact to zero path of action, and reduce the wastage raising specific power.Finish-milling spiral flank profil new process instead of the expensive process that tradition relies on full import equipment fine grinding completely, and input cost reduces below half, and efficiency can promote more than one times.
Adopt the spiral flank profil of thick finish-milling technique, its profile accuracy can only reach 0.025 ~ 0.04mm, tooth-face roughness Ra2.0 ~ 3.2 μm, and adopts the spiral flank profil of finish-milling technique, within its profile accuracy can reach 0.015mm, and tooth-face roughness Ra0.8 ~ 1.0 μm.The profile accuracy of visible the utility model finish-milling helical tooth technique has remarkable lifting, in addition the highi degree of accuracy finish-milling helical tooth tooth Profile Design technique that can produce quantitatively of this field, still belongs to blank at present at home and abroad.
The utility model finish-milling technology generations is for traditional fine grinding technology: by adopting dry the cutting that be shaped, the facing cutter of specific novel designs and cutter material and processing parameter for this reason, match specialized working machine tool of machine, the Synthetical Optimization being aided with finish-milling spiral flank profil is achieved, actual techniques obvious economic: production capacity improves, decrease machining cost, the original amplitude that has high input of equipment reduces, finished product accuracy is high, fill up the blank of China in the dry technical field of cutting of new type of compression heat pump spiral flank profil shaping finish-milling and production-line technique, accompanied by substantial power saving, to environmental protection also very friendly lifting, the range of choice of engineering material also increases.And emery wheel waste material in former fine grinding design technology and cutting oil very large to environmetal impact.
Embodiment in the utility model, only for being described the utility model, does not form the restriction to right, other equivalent in fact substituting, all in the utility model protection domain that those skilled in that art can expect.
Claims (6)
1. a compressing hot pump spiral main frame helical tooth, comprise male screw tooth and female screw tooth, described male screw tooth and the flank profil of female screw tooth are bilateral asymmetric helical tooth molded line, constituent curve is circular arc and envelope thereof, it is characterized in that: described male screw tooth and the gear ratio of female screw tooth are 5:6, the conjugated gap, flank profil space of male screw tooth and female screw tooth is 0.04mm ~ 0.06mm; Male screw tooth, female screw tooth central point are separately true origin, and its flank profil coordinate is as follows:
2. a kind of compressing hot pump spiral main frame helical tooth according to claim 1, it is characterized in that, the conjugated gap of flank profil spatial design of described male screw tooth and female screw tooth is 0.053mm.
3. a kind of compressing hot pump spiral main frame helical tooth according to claim 1, is characterized in that, observe male screw tooth and female screw tooth from output terminal, described male screw tooth is on right side, and rotation direction is left-handed; Described female screw tooth is in left side, and rotation direction is dextrorotation.
4. a kind of compressing hot pump spiral main frame helical tooth according to claim 1, is characterized in that, the profile accuracy after described male screw tooth and female screw tooth finish-milling controls within 15um.
5. a kind of compressing hot pump spiral main frame helical tooth according to claim 1, is characterized in that, the tooth-face roughness Ra0.8um ~ 1.0um after described male screw tooth and female screw tooth finish-milling.
6. compressing hot pump spiral main frame, is characterized in that: comprise the compressing hot pump spiral main frame helical tooth described in the arbitrary claim of claim 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520114734.2U CN204646666U (en) | 2015-02-17 | 2015-02-17 | A kind of compressing hot pump spiral main frame helical tooth and compressing hot pump spiral main frame |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520114734.2U CN204646666U (en) | 2015-02-17 | 2015-02-17 | A kind of compressing hot pump spiral main frame helical tooth and compressing hot pump spiral main frame |
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| Publication Number | Publication Date |
|---|---|
| CN204646666U true CN204646666U (en) | 2015-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520114734.2U Expired - Fee Related CN204646666U (en) | 2015-02-17 | 2015-02-17 | A kind of compressing hot pump spiral main frame helical tooth and compressing hot pump spiral main frame |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728117A (en) * | 2015-02-17 | 2015-06-24 | 上海偌托新能源科技有限公司 | Helical teeth of compression heat pump helix main engine and compression heat pump helix main engine |
-
2015
- 2015-02-17 CN CN201520114734.2U patent/CN204646666U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728117A (en) * | 2015-02-17 | 2015-06-24 | 上海偌托新能源科技有限公司 | Helical teeth of compression heat pump helix main engine and compression heat pump helix main engine |
| CN104728117B (en) * | 2015-02-17 | 2017-03-22 | 上海偌托新能源科技有限公司 | Helical teeth of compression heat pump helix main engine and compression heat pump helix main engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20180217 |
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| CF01 | Termination of patent right due to non-payment of annual fee |