CN102465962A - Resin molded sliding bearing and manufacturing method thereof, and tubing pump and manufacturing method thereof - Google Patents
Resin molded sliding bearing and manufacturing method thereof, and tubing pump and manufacturing method thereof Download PDFInfo
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- CN102465962A CN102465962A CN2010105349608A CN201010534960A CN102465962A CN 102465962 A CN102465962 A CN 102465962A CN 2010105349608 A CN2010105349608 A CN 2010105349608A CN 201010534960 A CN201010534960 A CN 201010534960A CN 102465962 A CN102465962 A CN 102465962A
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Abstract
The invention provides a low-quality-deterioration sliding bearing which can be manufactured with low cost, a manufacturing method thereof, and a tubing pump employing the manufacturing method. A mold represented by a figure 1(1) is used for manufacturing a resin molded sliding bearing with a recess represented by a figure 1(2), wherein the recess is used for accumulating oil. The sliding bearing (60) which can freely rotate around a fixed shaft is formed, wherein the fixed shaft is inserted into a through shaft hole (61). During the process, with a shrinkage cavity phenomenon, the recess used for accumulating oil is formed in the center on a length direction of the shaft hole (61). The shrinkage cavity phenomenon means that: resin is filled in a mold which is set with a manner that the wall thickness size of the sliding bearing (60) at the center on the length direction is larger than the wall thickness sizes of the sliding bearing (60) at the two ends on the length direction; the resin is cooled, and the central part with lager volume on the length direction is subject to severer shrinkage. With the manufacturing method, the integral resin-molded mechanism for the worm wheels and the eccentric rotor of the tubing pump can perform as a sliding bearing.
Description
Technical field
The present invention relates to sliding bearing and production method thereof, relate in particular to the tubing pump that uses its production method.
Background technique
Known in the prior art have a following described tubing pump, that is, the pipe fitting that the inner face along cylindrical chamber is configured to ring-type is oppressed through the eccentric motion that is arranged on the inboard ring-type pressure-producing part of this ring-type and brought into play pumping action (for example with reference to patent documentation 1).This tubing pump is compared with the tubing pump of directly oppressing pipe fitting with roller owing to oppress indirectly across the ring-type pressure-producing part, so the damage of pipe fitting less, the life-span is long.
In above-mentioned tubing pump, through worm couple make the rotational delay of motor and with it to the eccentric rotor transmission, thus, eccentric rotor rotation makes the ring-type pressure-producing part carry out eccentric motion.
As the mechanism that makes the eccentric rotor rotation, the method for using ball bearing or sliding bearing is arranged.Sliding bearing is owing to being under the state that axle utilizes oil film to float, to use, therefore, have can anti-high speed rotating characteristic, in order stably to supply with oil, consider to be provided for accumulating the recess of oil to surface of contact.
As the method for the recess that is provided for accumulating oil, method that circular groove is set is arranged or on axle in the method that circular groove is set in interior week of bearing.In said method,, therefore the high shortcoming of manufacture cost is arranged owing to need 2 processing.As not needing method for processing 2 times, have the punching press method of construction "garden gate" suspension む り order I worker method that overuses) be formed for accumulating the method (for example with reference to patent documentation 2) of the recess of oil.
[patent documentation 1] TOHKEMY 2006-029161 communique
[patent documentation 2] TOHKEMY 2000-145762 communique
But, being formed for accumulating in the method for oily recess in the above-mentioned punching press method of construction that overuses, the internal diameter at bearing produces scar or bearing integral generation distortion, the problem that existence possibly make quality worsen sometimes.In addition, also there is the too much problem in man-hour that is used to implement excessive punching press method of construction.
Summary of the invention
Therefore, the object of the present invention is to provide that a kind of quality worsens less, sliding bearing, its production method that can make with low cost and the tubing pump that uses its production method.
To achieve these goals, first invention is a kind of production method with ester moulding sliding bearing of the recess that is used to accumulate oil, it is characterized in that,
Be supported to leading to when the stationary axle rotation sliding bearing freely that connects axis hole in shaping around inserting; Utilize " shrinkage cavity " phenomenon; The recess that is used to accumulate oil in the length direction central part shaping of axis hole; Said " shrinkage cavity " phenomenon is for when to inserting resin and when making it to cool off so that the wall thickness dimension of this sliding bearing is a mould that the length direction central part is set greater than the mode at length direction two end part, the phenomenon that the contraction of bulky length direction central part is big.
Second invention is the basis with the production method of the described ester moulding sliding bearing of first invention, it is characterized in that,
Length direction central part at said ester moulding sliding bearing; Through resin be formed with in gear, rotor or the pulley more than one; Make the wall thickness dimension of this sliding bearing form the length direction central part, use the described production method of first invention to be used to accumulate the recess of oil in the length direction central part shaping of axis hole greater than the length direction two end part.
The 3rd the invention be a kind of ester moulding sliding bearing, its through resin be formed with in gear, rotor or the pulley more than one, it is characterized in that,
Said ester moulding sliding bearing has and utilizes first invention or the second described production method of invention and being used to of forming accumulated the recess of oil
The 4th invention is a kind of production method of tubing pump, and said tubing pump comprises: the pipe fitting that is configured to ring-type along the inner peripheral surface of cylindrical chamber; Be arranged on the inboard ring-type pressure-producing part of this ring-type; Make said ring-type pressure-producing part carry out the eccentric rotor of eccentric motion along said inner peripheral surface; Be used to rotate the motor of said eccentric rotor; And make the rotational delay of said motor and its transmission given the worm couple of eccentric rotor; Said tubing pump is oppressed said pipe fitting and is brought into play pumping action through making said ring-type pressure-producing part carry out eccentric motion; The production method of said tubing pump is characterised in that
Worm gear and said eccentric rotor through the integrally formed said worm couple of resin; Use the described production method of first invention; Being shaped at the length direction central part of axis hole is used to accumulate the recess of oil, makes will above-mentioned integrally formed mechanism to rotate sliding bearing freely and play a role as being supported to around inserting to lead in the stationary axle that connects axis hole.
The 5th invention is a kind of tubing pump, comprising: the pipe fitting that is configured to ring-type along the inner peripheral surface of cylindrical chamber; Be arranged on the inboard ring-type pressure-producing part of this ring-type; Make said ring-type pressure-producing part carry out the eccentric rotor of eccentric motion along said inner peripheral surface; Be used to rotate the motor of said eccentric rotor; And make the rotational delay of said motor and give the worm couple of eccentric rotor with its transmission, said tubing pump is oppressed said pipe fitting and is brought into play pumping action through making said ring-type pressure-producing part carry out eccentric motion, and said tubing pump is characterised in that,
Be formed with the worm gear and the said eccentric rotor of said worm couple through resin; This integrally formed mechanism as be supported to around insert lead in the stationary axle rotation that connects axis hole freely sliding bearing and play a role, have the recess that is used to accumulate oil that utilizes the described production method of first invention to form at the length direction central part of axis hole.
The 6th invention is the basis with the described tubing pump of the 5th invention, it is characterized in that,
Front end and the base end part of the worm screw of said worm couple are kept by ball bearing, and base end part combines with the motor reel of said motor via flexible connecting member.
The 7th invention is the basis with the described tubing pump of the 5th invention, it is characterized in that,
The base end part of the worm screw of said worm couple and the motor reel of said motor directly link, and the parts that front end is had ductility keep.
[invention effect]
According to first invention, be used to accumulate oily recess through of the length direction central part shaping of sliding bearing utilization " shrinkage cavity " phenomenon at axis hole, can reduce the quality deterioration that produces scar or distortion etc. at the internal diameter of sliding bearing.In addition, owing to do not need 2 processing, therefore can reduce manufacture cost.
According to second invention or the 3rd invention, except the effect that first invention is played,, can also reduce the whole number of components of goods, reduce manufacture cost through at the integrally formed gear of sliding bearing or gear and rotor.In addition,, compare, can when reducing manufacture cost, reduce the gear noise with metal formation through the resin formative gear.
According to the 4th invention or the 5th invention; Except the effect that first invention is played; Integrally formed eccentric rotor and worm gear are formed with the gap and do not contact with stationary axle between the axial central part of axis hole and stationary axle, the open end of axis hole plays a role as bearing, therefore; Do not need to be provided with in addition bearing, can reduce the manufacture cost of tubing pump.In addition, through integrally formed eccentric rotor and worm gear, can reduce number of components, the reduction manufacture cost of tubing pump.And, form worm gear through resin, form with metal and compare, can when reducing manufacture cost, reduce the gear noise, especially can eliminate the high range noise of giving unplessantness displeasure.
According to the 6th invention; Except first invention and the 5th is invented the effect that plays; Because the rotating tee of motor is crossed worm couple by the one-level of slowing down, and therefore, can the number of gears be subdued to two; Thereby reduce number of components, realize the miniaturization and the cost degradation of tubing pump, and can reduce source of sound quantity, the realization low noiseization of gear noise simultaneously.
According to the 7th invention; Except first invention and the 5th is invented the effect that plays, through keeping the front end of worm screw, even the worm screw vibration by parts with ductility; The parts that this vibration also can be had ductility absorb, and therefore can prevent to follow vibration to produce noise.
Description of drawings
Fig. 1 be mould in the production method of sliding bearing of first embodiment of the invention is shown and be shaped after the schematic representation in cross section of bearing.
Fig. 2 illustrates the schematic representation of an example (cross section) that gear and rotor is integrally formed in the sliding bearing of first embodiment of the invention through resin.
Fig. 3 be in the tubing pump of second embodiment of the invention, pull down behind the framework cover from above observed plan view.
Fig. 4 is a plan view of in the tubing pump of second embodiment of the invention, observing the framework cover from inner face side.
Fig. 5 is the A-A line sectional view of the Fig. 3 under the state of in the tubing pump of second embodiment of the invention, pulling down behind the framework cover.
Fig. 6 is the stereogram of the flexible connecting member in the tubing pump of third embodiment of the invention.
Fig. 7 be in the tubing pump of four embodiment of the invention, pull down behind the framework cover from above observed plan view.
Fig. 8 is illustrated in the worm screw of the structure that keeps worm screw in the tubing pump of four embodiment of the invention and the sectional view of holding part.
Symbol description
1 tubing pump
2 frameworks
2a framework main body
2b framework cover
3 pump case
31 cylindrical chamber
32 inner peripheral surfaces
4 pipe fittings
The 4a inflow entrance
The 4b outflow opening
5 ring-type pressure-producing parts
6 eccentric rotors
60 bearings
61 axis holes
62 stationary axle
7 motor
71 motor reels
8 worm couples
81 worm gears
82 worm screws
9 holding parts
91 compliant members
The aperture of the axial central part of R1 axis hole
The aperture of the open end of R2 axis hole
Embodiment
Below, with reference to accompanying drawing the mode that is used for embodiment of the present invention is elaborated.Need to prove, the invention is not restricted to the mode of execution of the following stated.
1. first mode of execution
The production method of the sliding bearing of first embodiment of the invention is described with reference to Fig. 1.Sliding bearing is to bear the bearing of axle at slip surface, owing to be under the state that axle utilizes oil film to float, to use, therefore must form oil film in use.
As the existing method that is provided for accumulating the recess of oil, method that circular groove is set is arranged and in the method that circular groove is set in interior week of bearing etc. on axle, but in said method, need carry out 2 processing, therefore the high shortcoming of manufacture cost is arranged.In addition, be formed for accumulating the method for the recess of oil as the punching press method of construction that do not need method for processing 2 times, have to overuse, but have the shortcoming that makes the quality deterioration because of produce scar at internal diameter or deform etc.
In the production method of the sliding bearing of first embodiment of the invention, use the mould shown in Fig. 1 (1), make and have being used to shown in Fig. 1 (2) and accumulate the ester moulding sliding bearing of the recess of oil.In this production method; Be supported to around inserting in shaping and lead to when the stationary axle rotation sliding bearing 60 freely that connects axis hole 61; Utilize " shrinkage cavity " phenomenon; Being shaped at the length direction central part of axis hole 61 is used to accumulate the recess of oil, and said " shrinkage cavity " phenomenon is for when to inserting resin and when making it to cool off so that the wall thickness dimension of this sliding bearing 60 is a mould that the length direction central part is set greater than the mode at length direction two end part, the phenomenon that the contraction of bulky length direction central part is big.
Shown in Fig. 1 (2), axially the aperture R2 of the R1 ratio open end, aperture of central part is big, between the axial central part of axis hole 61 and stationary axle, produces gapped and does not contact with stationary axle, and the open end of axis hole 61 plays a role as bearing.
In addition, can set the size that is used to accumulate oily recess freely through the die size (a, b, c, d) shown in adjustment Fig. 1 (1).
" shrinkage cavity " is the one of the main reasons that quality is worsened that in the forming process of resin, produces.In profiled member, shrinkage cavity is the insoluble problem that continues.And utilize production method of the present invention, can have following double effects, that is, produce shrinkage cavity energetically and with this shrinkage cavity flexibly as accumulating the oil place, and then suppress the generation of other unwanted shrinkage cavity through producing big shrinkage cavity artificially.In addition, utilize production method of the present invention, can also eliminate when oil place is accumulated in formation through 2 processing or excessively scar and the quality deterioration etc. of the sliding bearing internal diameter that produces of punching press method of construction.In addition, owing to do not need 2 processing, therefore can also reduce manufacture cost.
Next, Fig. 2 illustrates gear and the rotor example (cross section) through the integrally formed sliding bearing of resin.As shown in Figure 2; Length direction central part at sliding bearing 60; Gear and rotor are integrally formed through resin; The wall thickness dimension of this sliding bearing forms the length direction central part greater than the length direction two end part, uses the production method of above-mentioned explanation, is used to accumulate the recess of oil in the length direction central part shaping of axis hole.In the example of Fig. 2, show gear and rotor be integrally formed at the example of sliding bearing 60 through resin, but also can utilize in the integrally formed gear of resin or rotor or the pulley more than one.
Like this, through utilizing resin, can reduce the whole number of components of goods, thereby reduce manufacture cost being integrally formed at sliding bearing 60 more than one in gear or rotor or the pulley.In addition,, compare, can when reducing manufacture cost, reduce the gear noise with metal formation through the resin formative gear.
[embodiment 1]
Describe using the mould manufacturing shown in Fig. 1 (1) to have the example of ester moulding sliding bearing that being used to shown in Fig. 1 (2) accumulate the recess of oil.Here; Size with mould shown in Fig. 1 (1) is made as a=8mm, b=5mm, c=15mm, d=20mm; Use as resin under the situation of POM resin (polyoxymethylene), when R2 ≒ 4.03mm, verified the R1 ≒ 4.13～4.33mm that to be shaped; The degree of depth ((R1-R2)/2) that is groove is 50～150 μ m, and length L is the recess of 5～6mm.Know that by above as the condition of the desired recess that is shaped, preference is as establishing c >=3b, a >=2L.
2. second mode of execution
In second mode of execution of the present invention, the method for the production method of the sliding bearing that uses first mode of execution being made tubing pump describes.
(1) tubular type pump structure
Use Fig. 3～Fig. 5 that the tubular type pump structure is described.Like Fig. 3～shown in Figure 5, tubing pump 1 is housed in the framework 2 as pump casing.Framework 2 comprises the framework cover 2b of framework main body 2a that the under casing shape is arranged with opening and the opening that covers framework main body 2a.
The rotating tee of motor 7 is crossed worm couple 8 and is slowed down and to be given eccentric rotor 6 by transmission, and the rotation through eccentric rotor 6 makes ring-type pressure-producing part 5 carry out eccentric motion.Through this eccentric motion, the compressing of pipe fitting 4 part moves to a direction, thereby the fluid in the pipe fitting 4 is seen off.Through the said pump effect, fluid flows into inflow entrance 41a, and flows out from outflow opening 41b.
Framework 2 is for example formed by ABS resin etc.The recess 22 that framework cover 2b is formed with between cylindrical chamber 31, the outside that connects framework 2 and the cylindrical chamber 31 and is used to accommodate slot part 21a, the 21b of pipe fitting 4 and is used to avoid interfere with motor 7.Framework main body 2a and framework cover 2b have cover tapped hole 23a, 23b respectively, are fixed by screw thread each other.
Ring-type pressure-producing part 5 is that the material that friction factor is little forms the parts that plan view shape is the certain ring-type of annulus and thickness, the forming synthetic resin spare that for example for fluororesin is.Eccentric rotor 6 is constituted as, and its outer circumferential face and the rotation of ring-type pressure-producing part 5 sliding contacts ground make ring-type pressure-producing part 5 make eccentric motion along inner peripheral surface 32.Ring-type pressure-producing part 5 is fixed in pipe fitting 4, through the part of eccentric motion with respect to inner peripheral surface 32 compressing pipe fittings 4.Thereby, at part (the left downside of Fig. 3) the compressing pipe fitting 4 that eccentric rotor 6 and ring-type pressure-producing part 5 join, the stream in the inaccessible pipe fitting 4.In addition, do not form the gap and can not oppress pipe fitting 4, therefore can guarantee the stream in the pipe fitting 4 with the part (upper right side of Fig. 3) that ring-type pressure-producing part 5 joins at eccentric rotor 6.
In the tubing pump with worm couple of existing technology, worm gear is fixed in gear shaft, and the two ends of this gear shaft are to rotate freely by the bearing supporting.Relative with it, in the present invention, worm gear 81 is integrally formed through resin and eccentric rotor 6, has the shared axis hole 61 of perforation, is supported to around inserting the stationary axle 62 that leads in axis hole 61 to rotate freely.The aperture R2 of R1 ratio open end, aperture that axis hole 61 is formed axial central part is big.Use good resin material, the for example POM (polyoxymethylene) of lubricity for worm gear 81 and eccentric rotor 6.Stationary axle 62 is a metallic, upright being located in the framework main body 2a.
Integrally formed worm gear 81 and eccentric rotor 6 be by framework main body 2a and framework cover 2b clamping, thereby be limited the activity of axial (length direction among Fig. 5).Because ring-type pressure-producing part 5 is not limited to oppress the center of pipe fitting 4, therefore, pipe fitting 4 can be up and down at the inner peripheral surface 32 of cylindrical chamber 31.At this moment, though transmit up and down power to eccentric rotor 6,, therefore can prevent the dandle of worm gear 81 because the activity of above-below direction is limited from pipe fitting 4.
(2) production method of tubing pump
As stated, worm gear 81 is integrally formed through resin with eccentric rotor 6, has the shared axis hole 61 of perforation, is supported to around inserting the stationary axle 62 that leads in axis hole 61 to rotate freely, plays a role as sliding bearing.Therefore, use the production method of the sliding bearing of first mode of execution to be shaped and be used to accumulate the recess of oil, make integrally formed worm gear 81 and eccentric rotor 6 play a role as sliding bearing at the length direction central part of axis hole.
That is, integrally formed worm gear 81 utilizes its wall thickness dimension to be set to the mould formation of length direction central part greater than the length direction two end part with eccentric rotor 6.Through setting such mould; Be received in the interior resin of mould when cooling, the big length direction central part of volume is compared with the length direction two end part and is shunk greatly, is called as the phenomenon of " shrinkage cavity "; Therefore, the aperture R2 of the R1 ratio open end, aperture of the axial central part of axis hole is big.Thereby integrally formed worm gear 81 and eccentric rotor 6 are formed with the gap and do not contact with stationary axle 62 between the axial central part of axis hole 61 and stationary axle 62, and the open end of axis hole 61 plays a role as bearing.
Through using above-mentioned production method, do not need bearing is set in addition, have the effect of the manufacture cost that reduces tubing pump 1.In addition, be used to accumulate the recess of oil, can reduce the quality deterioration that produces scar or distortion etc. at internal diameter through utilizing " shrinkage cavity " phenomenon to be shaped in the axis hole side.And,, can reduce number of components, the reduction manufacture cost of tubing pump 1 through integrally formed worm gear 81 and eccentric rotor 6.In addition, form worm gear 81, form with metal and compare, can when reducing manufacture cost, reduce the gear noise, especially can eliminate the high range noise of giving unplessantness displeasure through resin.
3. the 3rd mode of execution
In the 3rd mode of execution of the present invention, the maintenance structure at the two ends of worm screw 82 in the tubing pump 1 is described with reference to Fig. 3～Fig. 5 and Fig. 6.
Front end of worm screw 82 and base end part are kept by ball bearing 9a, 9b respectively, and base end part combines with the motor reel 71 of motor 7 via flexible connecting member (flexible joint) 10.The outer ring of ball bearing 9a, 9b is fixed in the framework main body 2a.Flexible connecting member 10 is the coupling that absorb the angular error (core dislocation) of motor reel 71 and worm screw 82.As shown in Figure 6, flexible connecting member 10 is made up of flexible connecting member protuberance 10a that convexes with key and the flexible connecting member recess 10b that is concaved with key, and key and keyway tabling come the transmission rotation.Use the crooked coupling of flange-shape etc. though also can replace flexible connecting member 10, because therefore flexible connecting member 10 simple in structure, reliable in action are used more.
The tubing pump 1 that as above constitutes is because through the rotational delay one-level of worm couple 8 with motor 7; Therefore; Can the number of gears be subdued to two altogether of worm gear 81 and worm screws 82; Thereby reduce number of components, realize miniaturization and cost degradation, and can reduce the source of sound quantity of gear noise simultaneously, realize low noiseization.
4. the 4th mode of execution
In the 4th mode of execution of the present invention, the maintenance structure at the two ends of worm screw 82 is different with the 3rd mode of execution in the tubing pump 1.With reference to Fig. 7 and Fig. 8 the maintenance structure at the two ends of the worm screw 82 of this mode of execution is described.
In tubing pump 1, base end part of worm screw 82 and motor reel 71 directly link, and front end is held portion 9 and keeps.Holding part 9 has compliant member 91, and is fixed in the framework main body 2a.That is, the front end of worm screw 82 is held via compliant member 91.
Holding part 9 comprises the compliant member 91 that is provided with the hole and the back boxing 92 of built-in compliant member 91.In the hole of compliant member 91, insert the front end of worm screw 82.Compliant member 91 is that the material that the impregnation oiling agent forms in spongy rubber or the high density felt about 85 ° constitutes by the porous material with appropriate ductility, for example shore hardness.Oiling agent for example is oil or lubricating grease etc.
In the tubing pump 1 that as above constitutes, holding part 9 plays a role as sliding bearing, the front end of worm screw 82 is carried out axle support.Compliant member 91 has bearing surface 91a in the hole, bearing surface 91a reduces friction through oiling agent.Worm screw 82 produces axial thrust load when rotated.Holding part 9 is the load of 91b bearing thrust in the side of compliant member 91.Also can give tapering to bearing surface 91a, thereby in the load of bearing surface 91a bearing thrust.
If worm screw 82 produces angular error with motor reel 71, front end can produce vibration when then rotating.If shorten the total length of worm screw 82 and motor reel 71, then can alleviate this vibration.But worm couple 8 slows down in order to realize one-level, and it is bigger that reduction speed ratio is set ground, thereby makes the diameter of worm gear 81 become big, and for fear of with the interference of motor 7, the shortening of the total length of worm screw 82 and motor reel 71 then is limited.In this mode of execution, holding part 9 can also play a role as the damper mechanism (vibration damper) of the vibration that absorbs worm screw 82 through having compliant member 91.Therefore, even worm screw 82 vibrations because compliant member 91 absorbs its vibration, therefore can prevent to follow vibration to produce noise, thereby realize the low noiseization of tubing pump 1.
In addition; In the present embodiment; Keep the structure of the leading section of worm screw 82 to be illustrated for maintaining part 9; But also can replace maintaining part 9, utilize the bearing do not have compliant member 91 that worm screw 82 is carried out axle and support, and via the parts with flexibility with this bearing fixing in framework main body 2a.
[industrial applicibility]
The disposable tubing pumps that the present invention goes for using as the for example insulin injection of medical device etc., the black liquid that can also be applicable to other for example carry at the washing agent of washing machine, printing press are carried and the tubing pump that send use in the water etc. of cafe server.
Claims (7)
1. the production method of an ester moulding sliding bearing, this ester moulding sliding bearing have the recess that is used to accumulate oil, it is characterized in that,
Be supported to leading to when the stationary axle rotation sliding bearing freely that connects axis hole in shaping around inserting; Utilize " shrinkage cavity " phenomenon; The recess that is used to accumulate oil in the length direction central part shaping of axis hole; Said " shrinkage cavity " phenomenon is for when to inserting resin and when making it to cool off so that the wall thickness dimension of this sliding bearing is a mould that the length direction central part is set greater than the mode at length direction two end part, the phenomenon that the contraction of bulky length direction central part is big.
2. the production method of ester moulding sliding bearing according to claim 1 is characterized in that,
Length direction central part at said ester moulding sliding bearing; Through resin be formed with in gear, rotor or the pulley more than one; Make the wall thickness dimension of this sliding bearing form the length direction central part, use the described production method of claim 1 to be used to accumulate the recess of oil in the length direction central part shaping of axis hole greater than the length direction two end part.
3. ester moulding sliding bearing, its through resin be formed with in gear, rotor or the pulley more than one, it is characterized in that,
Said ester moulding sliding bearing has claim utilized 1 or the described production method of claim 2 and the recess that is used to accumulate oil that forms.
4. the production method of a tubing pump, said tubing pump comprises: the pipe fitting that is configured to ring-type along the inner peripheral surface of cylindrical chamber; Be arranged on the inboard ring-type pressure-producing part of this ring-type; Make said ring-type pressure-producing part carry out the eccentric rotor of eccentric motion along said inner peripheral surface; Be used to rotate the motor of said eccentric rotor; And make the rotational delay of said motor and its transmission given the worm couple of eccentric rotor; Said tubing pump is oppressed said pipe fitting and is brought into play pumping action through making said ring-type pressure-producing part carry out eccentric motion; The production method of said tubing pump is characterised in that
Worm gear and said eccentric rotor through the integrally formed said worm couple of resin; Use the described production method of claim 1; Being shaped at the length direction central part of axis hole is used to accumulate the recess of oil, makes will above-mentioned integrally formed mechanism to rotate sliding bearing freely and play a role as being supported to around inserting to lead in the stationary axle that connects axis hole.
5. a tubing pump comprises: the pipe fitting that is configured to ring-type along the inner peripheral surface of cylindrical chamber; Be arranged on the inboard ring-type pressure-producing part of this ring-type; Make said ring-type pressure-producing part carry out the eccentric rotor of eccentric motion along said inner peripheral surface; Be used to rotate the motor of said eccentric rotor; And make the rotational delay of said motor and give the worm couple of eccentric rotor with its transmission, said tubing pump is oppressed said pipe fitting and is brought into play pumping action through making said ring-type pressure-producing part carry out eccentric motion, and said tubing pump is characterised in that,
Be formed with the worm gear and the said eccentric rotor of said worm couple through resin; This integrally formed mechanism as be supported to around insert lead in the stationary axle rotation that connects axis hole freely sliding bearing and play a role, have the recess that is used to accumulate oil that utilizes the described production method of claim 1 to form at the length direction central part of axis hole.
6. tubing pump according to claim 5 is characterized in that,
Front end and the base end part of the worm screw of said worm couple are kept by ball bearing, and base end part combines with the motor reel of said motor via flexible connecting member.
7. tubing pump according to claim 5 is characterized in that,
The base end part of the worm screw of said worm couple and the motor reel of said motor directly link, and the parts that front end is had ductility keep.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105349608A CN102465962A (en) | 2010-11-01 | 2010-11-01 | Resin molded sliding bearing and manufacturing method thereof, and tubing pump and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105349608A CN102465962A (en) | 2010-11-01 | 2010-11-01 | Resin molded sliding bearing and manufacturing method thereof, and tubing pump and manufacturing method thereof |
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| CN102465962A true CN102465962A (en) | 2012-05-23 |
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| CN2010105349608A Pending CN102465962A (en) | 2010-11-01 | 2010-11-01 | Resin molded sliding bearing and manufacturing method thereof, and tubing pump and manufacturing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI764109B (en) * | 2019-03-22 | 2022-05-11 | 美商聖高拜塑膠製品公司 | Composite bearing and method of making and using the same |
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| JPH0932856A (en) * | 1995-07-21 | 1997-02-04 | Ntn Corp | Sliding bearing and its manufacture |
| JP3112882B2 (en) * | 1997-07-10 | 2000-11-27 | 三晶技研株式会社 | Bearing |
| JP2004316712A (en) * | 2003-04-14 | 2004-11-11 | Canon Inc | Dynamic pressure bearing device |
| JP2006029161A (en) * | 2004-07-14 | 2006-02-02 | Aquatech:Kk | Tube pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI764109B (en) * | 2019-03-22 | 2022-05-11 | 美商聖高拜塑膠製品公司 | Composite bearing and method of making and using the same |
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Application publication date: 20120523 |