CN209145885U - Two kinds of pumps main circular arcs rotor of biasing with concentric fan top - Google Patents
Two kinds of pumps main circular arcs rotor of biasing with concentric fan top Download PDFInfo
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- CN209145885U CN209145885U CN201821909287.XU CN201821909287U CN209145885U CN 209145885 U CN209145885 U CN 209145885U CN 201821909287 U CN201821909287 U CN 201821909287U CN 209145885 U CN209145885 U CN 209145885U
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Abstract
Two kinds of pumps main circular arcs rotor of biasing with concentric fan top, including the main circular arcs rotor of outer biasing, the main circular arcs rotor of interior biasing, half leaf rotor theory shaped wire of the outer main circular arcs rotor of biasing includes the concentric cabin fan arc of end to end peak potion, transition arc, the main circular arc of outer biasing, valley biases main circular arc conjugation section outside, fan point evacuation is conjugated section, fan top arc conjugation section, and half leaf rotor theory shaped wire of the main circular arcs rotor of interior biasing includes the concentric cabin fan arc of end to end peak potion, the main circular arc of interior biasing, the main circular arc conjugation section of valley interior biasing, fans top arc conjugation section.The fan angle that the utility model China and foreign countries bias the main circular arcs rotor of main circular arcs rotor, interior biasing controls the arc length and sealing effect in radial seal path, although concentric cabin fan arc weakens certain maximum form factor, but the intensity of its valley is increased simultaneously, therefore the main circular arcs rotor of outer biasing of the utility model or the main circular arcs rotor of interior biasing have the comprehensive performance of big form factor, high radial sealing and big valley intensity.
Description
Technical field
The utility model belongs to Roots's pump technical field, and in particular to there are two kinds of pumps on fan top with one heart to use and bias main circular arc
Rotor.
Background technique
Lobe pump is a kind of rotary displacement pump, and working principle is similar to gear pump, has principle simple, small in size, again
Measure light, at low cost, good airproof performance, it is pollution-free the features such as, be widely used in medium convey, vacuumize, air blast etc..
In current seen convention rotor, common circular arcs rotor is most commonly seen, and form factor is also maximum, 2 Ye Shiweiε 0
(2)=1.67,3 Ye Shiweiε 0(3)=1.48, but the disadvantage is that the peak potion of rotor leaf is approximately the radial seal of point contact, anti-leak
Effect is poor；In addition its maximum form factor can also weaken the certain intensity effect of valley.
Utility model content
For the deficiency of background technique, the utility model is comprehensively considering form factor, radial seal and valley intensity need
On the basis of wanting, researching and designing goes out a kind of two kinds of pumps main circular arcs rotor of biasing with concentric fan top, its object is to: it provides
Two kinds of pumps main circle of biasing with fan top with one heart that a kind of form factor is big, peak potion radial seal effect is good, valley intensity is big
Arc rotor.
The technical solution of the utility model:
Two kinds of pumps with concentric fan top are with biasing main circular arcs rotor, it is characterised in that: including it is outer bias main circular arcs rotor,
Half leaf rotor theory shaped wire of the main circular arcs rotor of interior biasing, the outer main circular arcs rotor of biasing includes that end to end peak potion is concentric
Cabin fan arc, transition arc, the main circular arc of outer biasing, valley bias main circular arc conjugation section outside, fan point evacuation is conjugated a section, fan top arc conjugation
Section, the starting point normal of the outer main circular arc of biasing crosses peak node, and the center of circle of transition arc is for the outer starting point normal for biasing main circular arc and together
The position of the intersection point of the fan point radius of heart cabin fan arc, the outer main concentric cabin fan arc of circular arcs rotor of biasing and fan point is by unit pitch circle half
Fan angle under diameter, the outer main circular arcs rotor of biasing form factor uniquely determined, the main circular arcs rotor transition arc of outer biasing and outside
The start position for biasing main circular arc is uniquely determined as crossing the center of circle corresponding to fan point, the outer main circular arc starting point normal angle of biasing, outside
Bias the main circular arc conjugation section of valley in half leaf rotor theory shaped wire of main circular arcs rotor, fan point evacuation conjugation section, cabin fan arc conjugation
Section is uniquely determined out by the conjugate relation of peak potion molded line and valley molded line, and half leaf rotor of the main circular arcs rotor of interior biasing is theoretical
Molded line includes the concentric cabin fan arc of end to end peak potion, the main circular arc of interior biasing, the main circular arc of valley interior biasing is conjugated section, fan top arc is total to
The position of yoke section, the concentric cabin fan arc of the main circular arcs rotor of interior biasing and fan point is by the main circle of fan angle, interior biasing under unit pitch radius
The form factor of arc rotor is uniquely determined, and the main circular arc of interior biasing is by crossing fan point, the center of circle is located on fan point radius, crosses node institute only
One determines, the main circular arc conjugation section of valley, cabin fan arc are conjugated Duan Youfeng in half leaf rotor theory shaped wire of the main circular arcs rotor of interior biasing
The conjugate relation of portion's molded line and valley molded line uniquely determines out.
The concentric cabin fan arc of peak potion is to be with rotor core wheel in half leaf rotor theory shaped wire of the outer main circular arcs rotor of biasing
The product of the center of circle, pitch radius and the outer main circular arcs rotor maximum form factor of biasing is radius, and fan angle is a Duan Yuan of central angle
Arc.
Transition arc is with fan point for starting point in half leaf rotor theory shaped wire of the outer main circular arcs rotor of biasing, outer biasing
The intersection point that main circular arc starting point normal fans point normal with concentric cabin fan arc is the center of circle, and the starting point normal angle of the outer main circular arc of biasing is the center of circle
One section of circular arc at angle.
It is with transition arc terminal that half leaf rotor theory shaped wire China and foreign countries of the outer main circular arcs rotor of biasing, which bias main circular arc,
For starting point, with transition arc is tangent, node is terminal biases main circular arc outside one section.
The concentric cabin fan arc of peak potion is to be with rotor core wheel in half leaf rotor theory shaped wire of the main circular arcs rotor of interior biasing
The product of the center of circle, pitch radius and the main circular arcs rotor maximum form factor of interior biasing is radius, and fan angle is a Duan Yuan of central angle
Arc.
In half leaf rotor theory shaped wire of the main circular arcs rotor of interior biasing the main circular arc of interior biasing be with fan point is starting point, with
One section of main circular arc of interior biasing that concentric cabin fan arc is tangent, node is terminal.
The utility model has the beneficial effects that the utility model China and foreign countries bias the main circular arcs rotor of main circular arcs rotor, interior biasing
Fan angle controls the arc length and sealing effect in radial seal path, although concentric cabin fan arc weakens certain maximum shape system
Number, but the intensity of its valley is increased simultaneously, therefore the main circular arcs rotor of outer biasing of the utility model or the main circular arc of interior biasing turn
Son has the comprehensive performance of big form factor, high radial sealing and big valley intensity.
Detailed description of the invention
Fig. 1 is half leaf theory shaped wire schematic diagram of inside and outside biasing main circular arcs rotor and common circular arcs rotor.
Fig. 2 is the main circular arc conjugation section of the inside and outside main circular arcs rotor of biasing without inflection point limit schematic diagram.
Fig. 3 is variation schematic diagram of the inside and outside main circular arcs rotor maximum form factor of biasing with fan angle.
Fig. 4 is that main circular arcs rotor schematic diagram is biased outside 3 leaves.
Fig. 5 is the main circular arcs rotor schematic diagram of 3 leaf interior biasings.
Fig. 6 is the rotation schematic diagram of rotor pair.
Wherein: 1, the concentric cabin fan arc of outer biasing main circular arcs rotor peak potion, 2, the outer transition arc for biasing main circular arcs rotor,
3, the main circular arc of outer biasing, 4, the main circular arc of the outer main circular arcs rotor valley of biasing be conjugated section, 5, the main circular arcs rotor fan point of outer biasing keeps away
Allow conjugation section, 6, the cabin fan arc of the main circular arcs rotor of outer biasing be conjugated section, 7, the concentric cabin fan arc of peak potion of the main circular arcs rotor of interior biasing,
8, the main circular arc of interior biasing, 9, the valley of the main circular arc of interior biasing be conjugated section, the main circular arc conjugation of the main circular arc of interior biasing, valley interior biasing
Section, 10, the fan top arc of the main circular arcs rotor of interior biasing are conjugated section；
Specific embodiment
The utility model is described further below in conjunction with specific embodiment.
Embodiment (by taking the pump rotor of two kinds under the 9.2 ° of fan angles main inside and outside biasings of circular arc as an example)
The peak symmetry axis (abbreviation peak axis) that the main circular arc of note biasing and its center of circle are located at rotor is ipsilateral for the main circular arc of interior biasing
Otherwise rotor is the outer main circular arcs rotor of biasing；It is common circular arcs rotor that the center of circle, which is located at the common circular arcs rotor on peak axis,；Claim peak axis
Intersection point with pitch circle is peak node, and it is peak dot that concentric fan top arc, which is located at the endpoint on peak axis, and another to fan point, central angle is fan
Angle；The terminal or node that the endpoint that main circular arc is located on pitch circle is it are biased, another is its starting point；Bias arbitrary point on main circular arc
Normal and pitch circle intersection point be method node；Biasing the normal of arbitrary point and the line in its center of circle and rotor center on main circular arc is
Method heart angle；Biasing the angle of the normal of arbitrary point and peak axis on main circular arc is normal angle；NFor the number of sheets of rotor.
As shown in Fig. 2, firstly, fan angleσ=At 9.2 °, by the main circular arc of outer biasing valley conjugation section 4 without inflection point condition,
The distance of certain point to its method node is to the distance in its center of circle and the method heart angle of the point equal to method node on the i.e. outer main circular arc 3 of biasing
90°；By the main circular arc of interior biasing valley conjugation section 9 without inflection point condition, i.e., certain point is to its method node on the main circular arc 8 of interior biasing
Distance is 90 ° equal to the distance of method node to its center of circle and the method heart angle of the point, in conjunction with several between the various line segment of rotor peak potion
What relationship derives the starting point normal angle of the outer main circular arc of biasing, as shown in Figure 1；The maximum shape system of inside and outside biasing innovation rotor
Number and its regular formula changed with fan angle, as shown in Figure 3.Wherein, by
Show that the inside and outside biasing innovation rotor that fan angle is 0 is common circular arcs rotor.
ε 1(σ, N)、ε 2(σ,N) fit equation be
With
Show that the maximum form factor of the inside and outside main circular arcs rotor of biasing has with the apparent linear decrease rule of fan angle.
Secondly, the concentric cabin fan arc 1 for biasing main circular arcs rotor peak potion outside is the pitch radius and 2 using rotor core wheel as the center of circle
1.39 product of 1.57 or 3 leaves of leaf is radius, 9.2 ° of central angle of one section of circular arc；Transition arc is with fan point for starting point,
The starting point normal of the outer main circular arc of biasing and the intersection point of the fan point normal of concentric cabin fan arc are the center of circle, 56.8 ° of central angle of a Duan Yuan
Arc；The main circular arc of outer biasing be using transition arc terminal as starting point, with transition arc is tangent, node is led to bias outside one section of terminal
Circular arc.
The concentric cabin fan arc of the main circular arcs rotor peak potion of interior biasing is pitch radius and 2 leaves using rotor core wheel as the center of circle
1.34 product of 1.56 or 3 leaves is radius, 9.2 ° of central angle of one section of circular arc；The main circular arc of interior biasing with fan a little for starting point, with
One section of main circular arc of interior biasing that concentric cabin fan arc is tangent, node is terminal.
Finally, uniquely determining the biasing molded lines of rotor upper valley out respectively by the conjugate relation of peak type line segment and paddy molded line section
Main circular arc conjugation section 4, fan point evacuation conjugation section 5 and the cabin fan arc in portion are conjugated section 6.The main circular arc of valley on interior biasing molded lines of rotor
It is conjugated section 3 and cabin fan arc is conjugated section 4.Thus rotor example is innovated in the inside and outside biasing of 3 leaves created, as shown in Figure 4.And by rotor pair
Fantasy sport, there is no the geometrical interferences on molded line for confirmation innovation rotor, as shown in Figure 5 (wherein,θIndicate the fortune of rotor pair
Turn angle).
Claims (6)
1. there are two kinds of pumps on fan top with one heart with biasing main circular arcs rotor, it is characterised in that: including the outer main circular arcs rotor, interior of biasing
Main circular arcs rotor is biased, half leaf rotor theory shaped wire of the outer main circular arcs rotor of biasing includes that end to end peak potion is pushed up with one heart
Fan arc, transition arc, the main circular arc of outer biasing, valley bias main circular arc conjugation section outside, fan point evacuation is conjugated section, fan top arc conjugation
Section, the starting point normal of the outer main circular arc of biasing crosses peak node, and the center of circle of transition arc is for the outer starting point normal for biasing main circular arc and together
The position of the intersection point of the fan point radius of heart cabin fan arc, the outer main concentric cabin fan arc of circular arcs rotor of biasing and fan point is by unit pitch circle half
Fan angle under diameter, the outer main circular arcs rotor of biasing form factor uniquely determined, the main circular arcs rotor transition arc of outer biasing and outside
The start position for biasing main circular arc is uniquely determined as crossing the center of circle corresponding to fan point, the outer main circular arc starting point normal angle of biasing, outside
Bias the main circular arc conjugation section of valley in half leaf rotor theory shaped wire of main circular arcs rotor, fan point evacuation conjugation section, cabin fan arc conjugation
Section is uniquely determined out by the conjugate relation of peak potion molded line and valley molded line, and half leaf rotor of the main circular arcs rotor of interior biasing is theoretical
Molded line includes the concentric cabin fan arc of end to end peak potion, the main circular arc of interior biasing, the main circular arc of valley interior biasing is conjugated section, fan top arc is total to
The position of yoke section, the concentric cabin fan arc of the main circular arcs rotor of interior biasing and fan point is by the main circle of fan angle, interior biasing under unit pitch radius
The form factor of arc rotor is uniquely determined, and the main circular arc of interior biasing is by crossing fan point, the center of circle is located on fan point radius, crosses node institute only
One determines, the main circular arc conjugation section of valley, cabin fan arc are conjugated Duan Youfeng in half leaf rotor theory shaped wire of the main circular arcs rotor of interior biasing
The conjugate relation of portion's molded line and valley molded line uniquely determines out.
2. as described in claim 1 with two kinds of pumps main circular arcs rotor of biasing on concentric fan top, it is characterised in that: described outer inclined
Setting the concentric cabin fan arc of peak potion in half leaf rotor theory shaped wire of main circular arcs rotor is the pitch radius and outer using rotor core wheel as the center of circle
The product for biasing main circular arcs rotor maximum form factor is radius, and fan angle is one section of circular arc of central angle.
3. as described in claim 1 with two kinds of pumps main circular arcs rotor of biasing on concentric fan top, it is characterised in that: described outer inclined
Set transition arc in half leaf rotor theory shaped wire of main circular arcs rotor and be to fan point as starting point, the outer main circular arc starting point normal of biasing with
The intersection point of concentric cabin fan arc fan point normal is the center of circle, and the starting point normal angle of the outer main circular arc of biasing is one section of circular arc of central angle.
4. as described in claim 1 with two kinds of pumps main circular arcs rotor of biasing on concentric fan top, it is characterised in that: described outer inclined
It is using transition arc terminal as starting point and transition arc that the half leaf rotor theory shaped wire China and foreign countries for setting main circular arcs rotor, which bias main circular arc,
Tangent, node is that one section of terminal biases main circular arc outside.
5. as described in claim 1 with two kinds of pumps main circular arcs rotor of biasing on concentric fan top, it is characterised in that: described interior inclined
Set in half leaf rotor theory shaped wire of main circular arcs rotor the concentric cabin fan arc of peak potion be using rotor core wheel as the center of circle, pitch radius with it is interior
The product for biasing main circular arcs rotor maximum form factor is radius, and fan angle is one section of circular arc of central angle.
6. as described in claim 1 with two kinds of pumps main circular arcs rotor of biasing on concentric fan top, it is characterised in that: described interior inclined
Set the main circular arc of interior biasing in half leaf rotor theory shaped wire of main circular arcs rotor and be with fan point be starting point, with concentric cabin fan arc it is tangent,
Node is one section of main circular arc of interior biasing of terminal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821909287.XU CN209145885U (en) | 2018-11-20 | 2018-11-20 | Two kinds of pumps main circular arcs rotor of biasing with concentric fan top |
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| CN201821909287.XU CN209145885U (en) | 2018-11-20 | 2018-11-20 | Two kinds of pumps main circular arcs rotor of biasing with concentric fan top |
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| CN209145885U true CN209145885U (en) | 2019-07-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242560A (en) * | 2019-07-24 | 2019-09-17 | 中国石油大学(华东) | A kind of gear rotor and its design method of gear pump |
-
2018
- 2018-11-20 CN CN201821909287.XU patent/CN209145885U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242560A (en) * | 2019-07-24 | 2019-09-17 | 中国石油大学(华东) | A kind of gear rotor and its design method of gear pump |
| CN110242560B (en) * | 2019-07-24 | 2023-09-29 | 中国石油大学(华东) | Gear rotor of gear pump and design method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20211213 Address after: 610000 No. 8, longhui Road, Jiancheng, Jianyang, Chengdu, Sichuan Patentee after: SICHUAN WUHUAN PETROCHEMICAL EQUIPMENT Co.,Ltd. Address before: 223800 No.399, Huanghe South Road, Suqian City, Jiangsu Province Patentee before: SUQIAN College |