CN102173044B - Blade extruding machine and load balancing and self-lubricating method for blades of blade extruding machine - Google Patents
Blade extruding machine and load balancing and self-lubricating method for blades of blade extruding machine Download PDFInfo
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- CN102173044B CN102173044B CN 201110044911 CN201110044911A CN102173044B CN 102173044 B CN102173044 B CN 102173044B CN 201110044911 CN201110044911 CN 201110044911 CN 201110044911 A CN201110044911 A CN 201110044911A CN 102173044 B CN102173044 B CN 102173044B
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Abstract
The invention relates to a blade extruding machine and a load balancing and self-lubricating method for blades of the blade extruding machine. In a blade plasticization and transportation unit, action force generated by material flowing by in bypass channels on the back surface of a blade propulsion surface of a material pressing area is utilized for overcoming the material action force on a blade propulsion surface; pressure relief holes communicated with the bypass channels can release the material pressure in a matching gap between the blade propulsion surface and a rotor shaft, reduce the action force on the propulsion surface and realize load dynamic balancing of each blade; and the pressure difference between two stress surfaces of each blade during the operation process is utilized for enabling the material to flow to a low-pressure area through the bypass channels and channels formed by the pressure relief holes and enabling the material to enter into melts for forming molten films from the matching gap between the blades and the rotor shaft, thereby realizing self-lubrication of the melts on the surfaces of the blades. The number of the pressure relief holes is less than or equal to that of the bypass channels, the pressure relief holes are symmetrically arranged, and the bypass channels are more than two and are symmetrically arranged. By adopting the blade extruding machine and the method, the unbalanced load on each blade can be reduced, good lubrication during sliding of the blades is ensured, abrasion is reduced, and the abrasion resistance of the blades is improved.
Description
Technical field
The present invention relates to the counterweight balance and the lubricating method of blade in the high polymer material plasticizing conveying equipment, be specifically related to a kind of counterweight balance and self-lubricating method of blade extruder blade.
Background technology
Blade on traditional blade pump rotor and surface around it all is a planar structure, pack into the blade groove of rotor of blade construction.When working under the vane pump higher rotation speed, centrifugal force is bigger, and liquid viscosity is lower in the pump, and the viscous resistance that blade is subjected to is less, and blade compresses the inwall of the pump housing, carries out from the fuel tank oil suction, to the work of outlet pump oil.But when the slow-speed of revolution, because centrifugal force descends, interior leakage increases, and the volumetric efficiency of pump just reduces, and can't realize the counterweight balance and the self-lubricating of blade.
ZL200810026054.X discloses a kind of high polymer material plasticizing transportation method and equipment based on draft flowing deformation, and its operation principle is similar to the operation principle of vane pump.Utilize eccentric stator, rotor and be installed in epitrochanterian some compositions and surround space with definite geometry to blade and with the front and rear baffle of rotor coaxial.When blade rotates with armature spindle, because stator has certain offset with respect to rotor, thereby the volume in above-mentioned space can ascending successively descending again cyclically-varying, when becoming big, volume includes material in, compacting when volume diminishes, plasticizing are also discharged material, realize that the material plasticizing that direct stress plays a major role transports.This part zone that volume is diminished gradually is called the binder district, volume is become this part big zone gradually be called material sucking area.In the binder district, because volume is from large to small, the effect of being squeezed of material wherein, material pressure increases gradually.Be subjected to being subjected on the pressure surface back side (being the opposite face of pressure surface) of the active force of material greater than blade the active force of material on the blade pressure surface (promptly driving a side of pressing materials), the load imbalance that causes blade to be subjected to.In addition, compare the traditional blades pump, in the high polymer material plasticizing conveying equipment based on draft flowing deformation, because the low macromolecule melt viscosity height of carrying simultaneously of the rotating speed of forming process rotor axle, blade can not rely on centrifugal force to slide in the armature spindle axial trough, compressing the inwall of stator, be to rely on the blade outer top surface to be subjected to the inner surface of stator constraint and in axial trough, move back and forth at a pair of blade on the root diameter.Because the suffered load imbalance in blade two sides, therefore blade can the another side that vane stress is less be pressed on the axial trough face of armature spindle because a surface pressure is big, cause melt can't enter between the axial trough face of stressed less face and armature spindle on the blade, cause lack between blade and the rotor axial trough lubricated.It is difficult and bigger with the fretting wear of armature spindle axial trough that the problems referred to above cause blade to slide easily.
Summary of the invention
The object of the present invention is to provide the counterweight balance and the self-lubricating method of a kind of blade extruder and blade thereof, to solve problem based on load imbalance, blade slip difficulty in the blade course of work in the high polymer material plasticizing conveying equipment of draft flowing deformation.
Blade extruder of the present invention, by feed unit, the blade plasticizing transports the unit, extruding the unit connects and composes successively, described blade plasticizing delivery unit is by cylindrical rotor axle 5, with cylindrical rotor axle 5 off-centre and hollow stator 6 that have cylindrical cavity, the recessed blade that places hollow stator 6 inner chambers to 1 and 3 and protruding blade to 2 and 4, the backgauge dish 13 and the backgauge dish 14 that are arranged in hollow stator 6 both sides constitute, backgauge dish 13 has material inlet 11, material outlet 12 is arranged on the backgauge dish 14, recessed blade to 1 and 3 and protruding blade be arranged in the radially square-section through hole of cylindrical rotor axle 52 and 4, and evenly distribute along cylindrical rotor axle 5 circumferencial directions; At recessed blade to the right blade pressure surface back side of protruding blade bypass channel 7 being set and communicating with bypass channel 7 and connect relief hole 8 to the blade pressure surface.
Above-mentioned bypass channel is more than two and symmetric arrangement; Relief hole quantity is less than or equal to bypass channel number and symmetric arrangement.
The counterweight balance of blade extruder blade and self-lubricating method, be that the active force that utilizes the material that flows through in the bypass channel 7 at the blade pressure surface back side, binder district to produce overcomes the material active force on the blade pressure surface, utilize the relief hole 8 that communicates with bypass channel that the material pressure in blade pressure surface and the armature spindle fit clearance is released, reduce the active force on the pressure surface, realize the load dynamic equilibrium that blade is subjected to; Utilize blade pressure differential of two stress surfaces on blade pressure surface and the blade pressure surface back side in running, make material flow to low-pressure area by the bypass channel 7 and the relief hole 8 formed passages at the blade pressure surface back side, enter melt in blade and the armature spindle fit clearance and form melt film, realize the self-lubricating of blade surface melt.
Compared with prior art, the present invention has following advantage:
(1) the blade pressure surface back side bypass channel of blade extruder of the present invention and relief hole the active force that can reduce on the pressure surface is set, realize the load dynamic equilibrium that blade is subjected to.
(2) the blade pressure surface back side bypass channel of blade extruder of the present invention and being provided with of relief hole that be communicated with bypass channel can reduce the unbalanced load that blade is subjected to, and make and enter melt in the pressure surface back side and pressure surface and the armature spindle fit clearance and form melt film, guarantee the good lubrication when blade slides, reduce wear, improved the wearability of blade.
Description of drawings
Fig. 1 transports the cutaway view of unit for the blade plasticizing of blade extruder;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the version figure of bypass channel and relief hole on the recessed blade;
Fig. 4 is the version figure of bypass channel and relief hole on the protruding blade.
The specific embodiment
The present invention is described further below in conjunction with drawings and Examples, but the scope of protection of present invention is not limited to the scope of embodiment statement.
Blade extruder of the present invention transports the unit by the plasticizing of feed unit, blade and the feeding unit connects and composes successively.The counterweight balance of blade and self-lubricating method are that the blade that transports the unit is provided with bypass channel to the back side and relief hole is realized by plastifying at described blade.
Fig. 1 plastifies the structural representation that transports the unit for blade, and Fig. 2 is the A A cutaway view of Fig. 1.Blade plasticizing delivery unit by cylindrical rotor axle 5, with armature spindle 5 off-centre and hollow stator 6 that have cylindrical cavity, place hollow stator 6 inner chambers recessed blade to 1 and 3 and protruding blade to 2 and 4, the backgauge dish 13 and the backgauge dish 14 that are arranged in hollow stator 6 both sides constitute, backgauge dish 13 has material inlet 11, material outlet 12 is arranged on the backgauge dish 14, recessed blade to 1 and 3 and protruding blade be arranged in the radially square-section through hole of cylindrical rotor axle 52 and 4, and evenly distribute along cylindrical rotor axle 5 circumferencial directions; At recessed blade to the right blade pressure surface back side of protruding blade bypass channel 7 being set and communicating with bypass channel 7 and connect relief hole 8 to the blade pressure surface.
Recessed blade to protruding blade to mounted in pairs in the through hole of the radially square-section of cylindrical rotor axle 5, two groups of blade inside bottom surface are in contact with one another, exterior top surface contacts with inner surface of stator.When cylindrical rotor axle 5 counterclockwise rotated, a pair of blade on cylindrical rotor axle 5 diameters (recessed blade to or protruding blade to) because outer top surface is retrained by the inner surface of stator 6, moved back and forth in the through hole of rotor radial square-section.Blade 1 and blade 2 are in the binder district that volume reduces gradually among Fig. 1.Melt pressure suffered on the pressure surface 9 of blade 1 is greater than melt pressure suffered on the pressure surface back side 10, therefore the pressure surface back side 10 of blade 1 is pressed on the axial trough face of armature spindle, make melt can't enter the mating surface of the pressure surface back side and axial trough, cause blade face wearing and tearing in the sliding process in axial trough.By offer the bypass channel 7 of symmetry arrangement at the pressure surface back side, melt enters the mating surface of the pressure surface back side and axial trough, thereby overcome the material active force on the pressure surface, realize the load dynamic equilibrium that blade is subjected to, and between the axial trough face of the pressure surface back side 10 and armature spindle, form melt film, realize the self-lubricating of blade surface melt.In the axial trough of blade 2 most of retraction armature spindles, by being provided with to communicate with bypass channel and to connect to the relief hole 8 of blade pressure surface the material pressure in blade pressure surface and the armature spindle fit clearance is released, reduce the active force on the pressure surface, realize the load dynamic equilibrium that blade is subjected to.
Fig. 3, Fig. 4 are respectively recessed blade to, the protruding blade version to last bypass channel and relief hole.Its design feature mainly is bypass channel 7 and 2 relief holes 8 that offer 4 symmetry arrangement on the pressure surface back side of blade, and relief hole communicates with bypass channel and connects to the blade pressure surface, and also symmetry arrangement.
Claims (4)
1. blade extruder, by feed unit, the blade plasticizing transports the unit, extruding the unit connects and composes successively, described blade plasticizing delivery unit is by cylindrical rotor axle (5), eccentric and the hollow stator (6) that have cylindrical cavity with cylindrical rotor axle (5), the recessed blade that places hollow stator (6) inner chamber is to (1,3) with protruding blade to (2,4), place the first backgauge dish (13) and the second backgauge dish (14) of hollow stator (6) both sides to constitute, on the first backgauge dish (13) material inlet (11) is arranged, on the second backgauge dish (14) material outlet (12) is arranged, recessed blade is to (1,3) with protruding blade to (2,4) be arranged in the radially square-section through hole of cylindrical rotor axle (5), and evenly distribute along the circumferencial direction of cylindrical rotor axle (5); It is characterized in that (1,3) and protruding blade are provided with bypass channel (7) to the blade pressure surface back side of (2,4) and communicate with bypass channel (7) and connecting relief hole (8) to the blade pressure surface at described recessed blade.
2. blade extruder according to claim 1 is characterized in that described bypass channel (7) is more than two and symmetric arrangement.
3. blade extruder according to claim 1 is characterized in that the quantity of described relief hole (8) is less than or equal to the quantity of bypass channel (7), and symmetric arrangement.
4. the counterweight balance and the self-lubricating method of the described blade extruder blade of one of claim 1～3, the active force that it is characterized in that utilizing the material that flows through in the bypass channel (7) at the blade pressure surface back side, binder district to produce overcomes the material active force on the blade pressure surface, utilize the relief hole (8) that communicates with bypass channel that the material pressure in blade pressure surface and the armature spindle fit clearance is released, realize the load dynamic equilibrium that blade is subjected to; Utilize the pressure differential at blade blade pressure surface and blade pressure surface back side in running, the bypass channel (7) and the formed passage of relief hole (8) that make material pass through the blade pressure surface back side flow to low-pressure area, make to enter melt in blade and the gap that armature spindle cooperates and form melt film, realize the self-lubricating of blade surface melt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110044911 CN102173044B (en) | 2011-02-24 | 2011-02-24 | Blade extruding machine and load balancing and self-lubricating method for blades of blade extruding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110044911 CN102173044B (en) | 2011-02-24 | 2011-02-24 | Blade extruding machine and load balancing and self-lubricating method for blades of blade extruding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102173044A CN102173044A (en) | 2011-09-07 |
| CN102173044B true CN102173044B (en) | 2013-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110044911 Expired - Fee Related CN102173044B (en) | 2011-02-24 | 2011-02-24 | Blade extruding machine and load balancing and self-lubricating method for blades of blade extruding machine |
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| CN (1) | CN102173044B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL6909763A (en) * | 1968-06-28 | 1969-12-30 | ||
| JPS62231719A (en) * | 1986-04-01 | 1987-10-12 | Kobe Kikai Kk | Extruder of rubber material |
| CN101311541A (en) * | 2007-05-27 | 2008-11-26 | 丁勇 | Rotating ring equalizing abrasion fluid pressure device |
| CN201090434Y (en) * | 2007-07-18 | 2008-07-23 | 邓远明 | Rotary piston pump |
| CN100496927C (en) * | 2008-01-25 | 2009-06-10 | 华南理工大学 | Polymer material plasticizing and transporting method and apparatus based on draft flowing deformation |
| CN202045847U (en) * | 2011-02-24 | 2011-11-23 | 华南理工大学 | Blade extruder |
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2011
- 2011-02-24 CN CN 201110044911 patent/CN102173044B/en not_active Expired - Fee Related
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| CN102173044A (en) | 2011-09-07 |
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Granted publication date: 20130724 Termination date: 20190224 |