WO2015064372A1 - 一軸偏心ネジポンプ - Google Patents
一軸偏心ネジポンプ Download PDFInfo
- Publication number
- WO2015064372A1 WO2015064372A1 PCT/JP2014/077565 JP2014077565W WO2015064372A1 WO 2015064372 A1 WO2015064372 A1 WO 2015064372A1 JP 2014077565 W JP2014077565 W JP 2014077565W WO 2015064372 A1 WO2015064372 A1 WO 2015064372A1
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- WO
- WIPO (PCT)
- Prior art keywords
- locking
- stator
- casing
- holder
- screw pump
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
- F04C15/0061—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
- F04C15/0065—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions for eccentric movement
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
- F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
- F04C2/1071—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth the inner and outer member having a different number of threads and one of the two being made of elastic materials, e.g. Moineau type
- F04C2/1073—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth the inner and outer member having a different number of threads and one of the two being made of elastic materials, e.g. Moineau type where one member is stationary while the other member rotates and orbits
- F04C2/1075—Construction of the stationary member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2230/00—Manufacture
- F04C2230/60—Assembly methods
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/80—Other components
- F04C2240/805—Fastening means, e.g. bolts
Definitions
- the present invention relates to a uniaxial eccentric screw pump.
- a male screw-shaped rotor directly connected to an output shaft and a housing is rotatably supported via a bearing, and its rotational axis is eccentric with respect to the rotational axis of the rotor.
- the thing of the structure provided with the stator which has a female screw-shaped inner surface is well-known (for example, refer patent document 1).
- the housing has a structure in which the suction part and the discharge part are respectively screwed to both ends of the main body part.
- the stator housed in the housing is a consumable product made of resin and needs to be replaced regularly. It is troublesome and troublesome to disassemble the suction part and the discharge part from the main body by loosening the screws and then installing it. It is.
- An object of the present invention is to enable easy and quick replacement of a consumable stator.
- the present invention provides: A casing having a first locking receiver; A stator connected to the casing and having an inner peripheral surface formed into a female screw type; A rotor that is insertable into the stator and comprises a male screw shaft; An end stud having a second locking receiving portion and connected to the stator on the opposite side of the casing; A holder for holding the stator between the casing and the end stud; With The holder includes a first locking portion locked to a first locking receiving portion of the casing, a second locking portion locked to a second locking receiving portion of the end stud, and the first Provided is a uniaxial eccentric screw pump comprising: an adjusting portion that enables adjustment of an interval between the engaging portion and the second engaging portion.
- the first locking part can be detached from the first locking receiving part and the second locking receiving part only by widening the interval between the first locking part and the second locking part by the adjusting part.
- the stator can be detached from the rotor by detaching the second locking portion from the rotor.
- the first locking portion is locked to the first locking receiving portion of the casing and the second locking receiving portion of the end stud is locked with the rotor inserted through the center hole.
- the stator can be held between the casing and the end stud by the holder. And it becomes possible to fix a stator between a casing and an end stud by performing the tightening which narrows the space
- the first locking receiving portion is a first flange formed in the casing, and has a first groove on a surface opposite to the stator, It is preferable that the first locking portion has at least a first locking claw locked in the first groove.
- the locking state of the first locking portion of the holder with respect to the first flange portion of the casing can be stabilized by locking the first locking claw in the first groove. Therefore, it is possible to perform the tightening operation smoothly by setting the holding state of the stator before the tightening by the adjusting portion to be good.
- the second locking receiving portion is a second flange portion formed on one end side of the end stud, and has a second groove on a surface opposite to the stator.
- the second locking portion preferably has a second locking claw locked in the second groove.
- stator is arranged so that its axis coincides with the vertical direction, and the casing is arranged above the stator.
- the holding state before the tightening operation by the adjusting unit is further stabilized by forming the groove only in the first flange portion of the casing and forming the locking claw only in the first locking portion of the holder.
- the locking claw of the first locking part is formed in an arc shape
- the groove portion of the first flange is formed in a circular shape capable of locking the locking claw, It is preferable that adjacent locking claws abut on each other while the locking claws of the holders are locked in the groove portions.
- the holder is two, What is necessary is just to form the said latching claw in the range of 180 degree
- the adjustment part of the holder has a male screw part or a female screw part formed in opposite directions on both ends, and a rotation operation part formed in an intermediate part.
- the interval between the first locking portion and the second locking portion can be adjusted at the same time by the adjustment portion simply by operating the rotation operation portion, and the workability can be further improved.
- the first locking portion is locked to the first locking receiving portion of the casing, and the second locking portion is locked to the second locking receiving portion of the end stud.
- the stator can be attached and detached efficiently.
- FIG. 4 is a partially enlarged view of the upper side of FIG. 3.
- FIG. 4 is a partially enlarged view of the lower side of FIG. 3.
- FIG. 4 is a cross-sectional view taken along the line II of FIG. (A) is the top view of the holder of FIG. 5, (b) is the front view, (c) is the side view.
- It is sectional drawing which shows a part of end stud of FIG. 5, and a flow volume stabilization member.
- It is a perspective view which shows the structure for supporting the uniaxial eccentric screw pump of FIG.
- It is a schematic front sectional drawing of the uniaxial eccentric screw pump which concerns on other embodiment.
- It is a schematic front sectional drawing of the uniaxial eccentric screw pump which concerns on other embodiment.
- This pump device 1 is for discharging a fluid contained in a tank 2 by a fixed amount by a uniaxial eccentric screw pump 3.
- the tank 2 is installed in a state where it is supported by a support mechanism (not shown), and a fluid (for example, a coating liquid) that is a transported object is accommodated therein.
- a first connection pipe 4 is connected to the upper part of the tank 2.
- the bottom surface of the tank 2 is inclined, and the second connection pipe 5 is connected to the lowest position (lower end).
- the first connecting pipe 4 is connected to a coupling cover 19 (described later) provided at the upper end of the pump casing 6 of the uniaxial eccentric screw pump 3, and the second connecting pipe 5 is connected to the lower end of the pump casing 6.
- the uniaxial eccentric screw pump 3 includes a driving machine 7 provided at the upper part of the pump casing 6, a stator 8, a rotor 9 and an end stud 10 provided at the lower end part, and power from the driving machine 7 as a rotor. 9 and a power transmission mechanism 11 for transmitting to the motor 9.
- the pump casing 6 is made of a metal material in a cylindrical shape, and a communication pipe 6a extends laterally from the lower side surface.
- the second connection pipe 5 is connected to the communication pipe 6a.
- a coupling rod 12 is accommodated in the pump casing 6.
- the upper end portion of the coupling rod 12 includes a first male screw portion 12a having a male screw formed on the outer periphery.
- the first male screw portion 12 a protrudes upward from the upper end opening of the pump casing 6 and is screwed into the coupling 13.
- the coupling 13 includes a shaft portion 14 into which the first male screw portion 12 a of the coupling rod 12 is screwed, and an output shaft insertion portion 15 that is fixed to the output shaft 7 a of the drive machine 7. Consists of. As shown in FIG. 6, the output shaft insertion portion 15 is substantially C-shaped, and the output shaft 7a can be fixed by tightening bolts 15a that are screwed to both ends in the circumferential direction.
- An annular plate 16 is attached to the outer peripheral surface of the shaft portion 14. That is, an annular groove is formed on the outer peripheral surface of the shaft portion 14, and a rubber annular plate 16 is attached thereto.
- the lower end portion of the shaft portion 14 protrudes downward from the annular plate 16 and constitutes a step portion 17 with the annular plate 16.
- An annular convex portion 18 that protrudes downward is formed on the outer peripheral edge of the lower end of the shaft portion 14.
- the annular plate 16, the stepped portion 17, and the annular convex portion 18 prevent the fluid from creeping up toward the coupling 13 due to the Weisenberg effect. However, if at least one of the annular plate 16, the step portion 17 and the annular convex portion 18 is present, it is possible to prevent the fluid from creeping up.
- the coupling cover 19 is made of a metal material in a cylindrical shape, and the communication pipe 20 extends from the upper side surface to the side.
- a flange portion 19a is formed at the upper end opening of the coupling cover 19, and elongated holes 19b extending in the circumferential direction are formed at two point-symmetric positions (see FIG. 6).
- a bolt 19d that is screwed in advance with the lower end surface of the drive machine 7 is inserted into the enlarged diameter portion of the long hole 19b formed in the flange portion 19a of the coupling cover 19, and the bolt 19d is rotated after the coupling cover 19 is rotated. tighten.
- the coupling cover 19 is fixed to the lower end surface of the driving machine 7 in a state of being in close contact with the packing 19c.
- the lower end opening of the coupling cover 19 protrudes toward the inner diameter side and is in close contact with the outer peripheral surface of the pump casing 6 via a packing 19e provided on the inner peripheral surface thereof.
- a first connection pipe 4 connected to the tank 2 is connected to the communication pipe 20.
- An oil seal 19 f is provided at the base of the output shaft 7 a protruding from the drive machine 7.
- the inside of the coupling cover 19 can be sealed with the packings 19c and 19e and the oil seal 19f, which is convenient for purging the inside of the coupling cover 19 with N 2 .
- the oil seal 19f itself is originally provided in the drive unit 7, it is not necessary to add a new packing, and the structure can be simplified and the cost can be reduced.
- a flange portion 21 that is a first locking receiving portion is integrated with a lower end opening of the pump casing 6.
- a first annular groove 22 is formed on the upper surface of the flange portion 21.
- a first locking claw 43 ⁇ / b> A of a holder 23 described later is locked in the first annular groove 22.
- the lower end of the coupling rod 12 is located at the center position of the lower end opening of the pump casing 6.
- the lower end portion of the coupling rod 12 is composed of a second male screw portion 12b having a male screw formed on the outer peripheral surface, and is screwed into a rotor 9 described later.
- a stator 8 is attached to a lower end portion of the pump casing 6, and a rotor 9 to which a rotational force from the driving machine 7 is transmitted via a power transmission mechanism 11 is inserted.
- An end stud 10 is disposed at the tip of the stator 8. The stator 8 and the rotor 9 are held by the holder 23 while being sandwiched between the pump casing 6 and the end stud 10.
- the stator 8 includes a cylindrical outer body 24 and a stator main body 25 arranged in close contact with the inner surface thereof.
- the stator body 25 is formed by forming an elastic material such as rubber or resin, which is appropriately selected according to the material to be transferred, into a cylindrical shape (for example, a cylindrical shape).
- the center hole of the stator 8 has a single-stage or multi-stage female screw shape with an inner circumferential surface having n strips.
- the rotor 9 is a shaft body made of a metal material having a single-stage or multi-stage male screw shape with n-1 strips.
- the rotor 9 is disposed in the central hole of the stator 8 and forms a transfer space 26 connected in the longitudinal direction.
- One end of the rotor 9 is connected to the coupling rod 12 on the pump casing 6 side, and rotates around the stator 8 and revolves along the inner peripheral surface of the stator 8 by the driving force from the driving machine 7. That is, the rotor 9 can eccentrically rotate in the center hole of the stator 8 to transfer the material in the transfer space 26 in the longitudinal direction.
- the end stud 10 is made of a metal material in a cylindrical shape, and its axis extends in the horizontal direction.
- a communication portion 27 extending upward is formed in the center portion and communicates with an opening portion of the transfer space 26 formed by the stator 8 and the rotor 9.
- a flange portion 27a is formed at the upper end opening of the communication portion 27, and a second annular groove 28 is formed on the lower surface thereof. In the second annular groove 28, a second locking claw 43B of the holder 23 described later is locked.
- a flow rate stabilizing member 29 is attached to the opening of the side surface of the end stud 10.
- the flow rate stabilizing member 29 includes a main housing 30 whose one end opening is connected to the end stud 10 side, and a support housing 31 that closes the other end opening of the main housing 30.
- An inner peripheral portion 32 formed by both the housings 30 and 31 has an increased diameter on the outer diameter side, and annular grooves 32a are formed on both annular end surfaces.
- a cylindrical elastic body 33 is disposed on the inner peripheral portion 32.
- the elastic body 33 is formed by adhering a sponge 35 to the inner peripheral surface of a hard sleeve 34 and further adhering a rubber tube 36 to the inner peripheral surface thereof.
- annular convex portions 36a located in the annular groove 32a are formed, and the inner peripheral surface coincides with the inner diameter dimension of the opening portion of the end stud 10.
- the flow rate stabilizing member 29 having the above-described configuration, if the flow rate of the fluid discharged from the end stud 10 varies, the rubber tube 36 and the sponge 35 are elastically deformed in the outer diameter direction according to the variation amount. Thereby, if the fluctuation
- the holder 23 is formed by screwing a first locking portion 38 and a second locking portion 39 to both ends of a stay bolt 37 as an adjustment portion.
- the holders 23 are provided in pairs of a first holder 40 and a second holder 41.
- the stay bolt 37 has a first male screw 37a and a second male screw 37b formed on the outer peripheral surfaces of both ends.
- the first male screw 37a and the second male screw 37b have opposite threading directions.
- the stay bolt 37 itself has a regular hexagonal cross section, and three pairs of flat surfaces 37c parallel to the axis are formed.
- the flat surface 37c is used for rotating the stay bolt 37 around the axis by a tool (not shown) such as a spanner.
- a tool not shown
- three sets of flat surfaces made of regular hexagons are used.
- a pair of flat surfaces 37c for example, a partial surface provided in the central portion
- a quadrangular prism, or the like can be rotated with a tool. Any configuration may be adopted as long as it is a simple configuration.
- the first locking portion 38 and the second locking portion 39 are each composed of a pair of semicircular portions 42 (see FIG. 7A).
- a pair of semicircular portions 42 form a cylindrical outer peripheral surface and inner peripheral surface.
- the outer peripheral surface includes a large-diameter portion 42a, a conical portion 42b, and a small-diameter portion 42c that are formed from one end to the other end.
- the inner peripheral surface is a locking claw 43 whose one end projects inward and whose tip is formed in an arc shape and extends inward in the axial direction.
- the locking claw 43 (first locking claw 43 ⁇ / b> A) of the first locking portion 38 can be locked in the first annular groove 22 formed in the flange portion 21 of the pump casing 6.
- the locking claw 43 (second locking claw 43B) of the second locking portion 39 can be locked to the second annular groove 28 formed in the flange portion 27a of the communication portion 27 of the end stud 10.
- the locking claws 43 of both the semicircular portions 42 of the one locking portion 38 or 39 are locked to the annular groove 22 or 28, the circumferential ends of the semicircular portions 42 face each other or come into contact with each other.
- the relative position in the circumferential direction is determined.
- the locking claw 43 (the first locking claw 43A and the second locking claw 43B) has an arc shape, and the locking position with the corresponding first annular groove 22 and the second annular groove 28 is set in the rotational direction. It can be in any position.
- the position of the rotation direction of the pump casing 6 and the end stud 10 can be adjusted freely, and the position of the communication pipe 6a of the pump casing 6 and the discharge port of the end stud 10 can be set as a desired position in the rotation direction. It becomes possible.
- the power transmission mechanism 11 includes the coupling 13 and the coupling rod 12 and transmits the driving force of the driving machine 7 to the rotor 9.
- the uniaxial eccentric screw pump 3 having the above-described configuration is supported on a support wall 45 via a bracket 44 shown in FIG.
- the bracket 44 includes a clamp 46 attached to the outer peripheral surface of the pump casing 6 and a bracket body 47 that supports the clamp 46.
- the clamp 46 is formed into an annular shape by tightening the tip with bolts and nuts, and is pressed against the outer peripheral surface of the pump casing 6.
- the bracket main body 47 is formed with a notch 48 from the side edge to form a holding hole 48a that is widened in a circular shape at the center.
- the bolt 49 provided on the support wall 45 is inserted into the notch, and the bolt 49 is tightened in a state where the bolt 49 is positioned in the holding hole 48a, whereby the uniaxial eccentric screw pump 3 is fixed to the support wall 45 via the bracket 44. be able to.
- stator 8 made of an elastic material such as rubber is worn by sliding contact with the rotor 9 during use, and the fluid may not be transferred properly.
- stator 8 is replaced as follows.
- the bolt 19d is loosened, the coupling cover is removed from the driving machine 7 and moved downward along the pump casing 6. Then, the bolt 15 a is loosened to release the connection state between the output shaft 7 a of the driving machine 7 and the coupling 13. Further, the connection between the first connection pipe 4 and the communication pipe 20 and the connection between the second connection pipe 5 and the communication pipe 6a are respectively released. At this time, the first connecting pipe 4 and the second connecting pipe 5 are closed so that the fluid does not flow out of the tank 2.
- the bolts 49 are loosened to move the bracket 44 in the horizontal direction, and the uniaxial eccentric screw pump 3 is removed at a portion below the drive unit 7 (driven portion 3a).
- the removed follower 3a is positioned by using a bolt (not shown, which may not be screwed such as a pin) similar to the bolt 49 provided at another position of the support wall 45. This positioning is performed at an exchange position above the bolt 49. That is, the positioning of the driven portion 3a by the bolt 49 is set to an installation position in which the lower portion of the end stud 10 located at the lowermost end is in the vicinity of the floor surface in order to suppress the overall height of the uniaxial eccentric screw pump in the installed state.
- the driven portion 3a is removed from the drive unit 7 and is positioned above the installation position so as to ensure at least a drawing allowance.
- the stay bolts 37 of the first holder 40 and the second holder 41 are rotated by a tool (not shown), and the first locking portion 38 and the second engagement provided at both ends thereof, respectively.
- the screwed state with the stopper 39 is gradually loosened.
- the male screw portions 37a and 37b are reverse screws at both ends of the stay bolt 37, the screwed state of both the locking portions 38 and 39 can be simultaneously loosened by simply rotating the stay bolt 37. be able to.
- the 2nd latching claw 43B will be an end.
- the stud 10 is detached from the second annular groove 28 of the stud 10.
- the end stud 10 is removed and the stator 8 is moved downward to be detached from the rotor 9.
- the new stator 8 is inserted into the center hole of the rotor 9 and the stator 8 is attached to the pump casing 6.
- the holder 23 is locked to the pump casing 6 by locking the first locking claw 43 ⁇ / b> A of the first locking portion 38 of the holder 23 in the first annular groove 22 of the pump casing 6.
- the end stud 10 is disposed at the lower end portion of the stator 8, and the second locking claw 43B of the second locking portion 39 of the holder 23 is locked in the second annular groove 28 formed in the flange portion 27a.
- the stator 8 and the end stud 10 are temporarily fixed to the pump casing 6 by the holder 23. Therefore, the stay bolt 37 of the holder 23 is rotated using a tool to bring the first locking portion 38 and the second locking portion 39 closer to each other, and the locking by the first locking claw 43A and the second locking claw 43B. Make the state strong.
- the driven portion 3a is returned from the replacement position to the installation position, and is fixed to the support wall 45 by tightening the bolts 49.
- the coupling 13 of the driven part 3a is connected with the output shaft 7a of the drive machine 7, covered with the coupling cover 19, and fixed to the lower end surface of the drive machine 7 with a volt
- the first connection pipe 4 and the communication pipe 20 are connected, and the second connection pipe 5 and the communication pipe 6a are connected to return to the communication state. Thereby, the replacement work for the new stator 8 is completed.
- the holder 23 is configured by the first holder 40 and the second holder 41, but may be configured by one, or may be configured by three or more. However, it is desirable to determine the number and arrangement positions of the holders 23 so that the end stud 10 can be fixed in a stable state with an equal force. Further, the holder 23 is not positioned in the rotation direction, but can be positioned. According to this, the position of the stay bolt 37 to be rotated by the tool can be determined, and improvement in workability can be expected.
- the locking claw 43 of the holder 23 is locked to the first annular groove 22 of the pump casing 6 or the second annular groove 28 of the end stud 10, but for example, as shown in FIG. A configuration in which the lower surface of the substantially L-shaped bent portion 38 a is simply placed on the upper surface of the flange portion 21 of the pump casing 6 may be adopted. In short, any configuration may be adopted as long as both end portions of the holder 23 can be locked to the pump casing 6 and the end stud 10 (only the pump casing 6 may be used).
- the uniaxial eccentric screw pump 3 is used in the vertical direction. However, even when the uniaxial eccentric screw pump 3 is used in the horizontal direction, the replacement work of the stator 8 can be easily performed using the holder 23 having the above configuration. it can.
- the first male screw portion 12a and the second male screw portion 12b are formed at both ends of the coupling rod 12, and the female screw hole is formed in the coupling 13 and the rotor 9, but the coupling rod
- a female screw hole may be formed at both ends of the twelve portion, and a male screw portion may be formed at each of the coupling 13 and the rotor 9.
- the first male screw 37a and the second male screw 37b are formed at both ends of the stay bolt 37
- the female screw holes are formed in the first locking portion 38 and the second locking portion 39.
- a male screw portion may be formed in the female screw hole, the first locking portion 38 and the second locking portion 39.
- the male screw portion or the female screw hole may not be formed at both end portions of the stay bolt 37, but may be formed only at either one of the end portions.
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- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
Description
第1係止受部を有するケーシングと、
前記ケーシングに連接され、内周面が雌ネジ型に形成されたステータと、
前記ステータに挿通可能であり、雄ネジ型の軸体からなるロータと、
第2係止受部を有し、前記ケーシングとは反対側で前記ステータに連接されるエンドスタッドと、
前記ステータを、前記ケーシングと前記エンドスタッドとの間に保持するホルダと、
を備え、
前記ホルダは、前記ケーシングの第1係止受部に係止される第1係止部と、前記エンドスタッドの第2係止受部に係止される第2係止部と、前記第1係止部と前記第2係止部との間隔を調整可能とする調整部と、を備える一軸偏心ネジポンプを提供する。
また、新たなステータに交換する場合、その中心孔にロータを挿通した状態で、ケーシングの第1係止受部に第1係止部を係止し、エンドスタッドの第2係止受部に第2係止部を係止することで、ホルダによりケーシングとエンドスタッドの間にステータを保持することができる。そして、調整部により第1係止部と第2係止部の間隔を狭くする締付を実行することで、ケーシングとエンドスタッドの間にステータを固定することが可能となる。
前記第1係止部は、少なくとも、前記第1溝に係止される第1係止爪を有するのが好ましい。
前記第2係止部は、前記第2溝に係止される第2係止爪を有するのが好ましい。
前記第1係止部の係止爪は円弧状に形成され、
前記第1鍔部の溝部は、前記係止爪を係止可能な円形状に形成され、
前記各ホルダの係止爪が前記溝部に係止された状態で、隣接する係止爪同士が当接するようにするのが好ましい。
前記係止爪は、180度の範囲にそれぞれ形成すればよい。
タンク2内の流動物を吐出させる場合、駆動機7を駆動し、カップリング13及びカップリングロッド12を介してロータ9を回転させる。これにより、ステータ8の内周面とロータ9の外周面とによって形成される移送空間26が、これらの長手方向すなわち下方側へと移動する。これにより、タンク2から吐出された流動物が移送空間26に吸い込まれ、エンドスタッド10へと移送される。そして、エンドスタッド10に至った流動物は、ここで方向変換され、流量安定部材29によって流動状態を安定させながらさらに移送される。
2…タンク
3…一軸偏心ネジポンプ
4…第1接続管
5…第2接続管
6…ポンプケーシング
6a…連通管
7…駆動機
7a…出力軸
8…ステータ
9…ロータ
10…エンドスタッド
11…動力伝達機構
12…カップリングロッド
12a…第1雄ネジ部
12b…第2雄ネジ部
13…カップリング
14…軸部
15…出力軸挿入部
16…環状プレート
17…段部
18…環状凸部
19…カップリングカバー
19a…鍔部
19b…長孔
19c…パッキン
19d…ボルト
19e…パッキン
19f…オイルシール
20…連通管
21…鍔部
22…第1環状溝
23…ホルダ
24…外装体
25…ステータ本体
26…移送空間
27…連通部
27a…鍔部
28…第2環状溝
29…流量安定部材
30…メインハウジング
31…サポートハウジング
32…内周部
32a…環状溝
33…弾性体
34…スリーブ
35…スポンジ
36…ゴムチューブ
36a…環状凸部
37…ステーボルト(調整部)
37a…第1雄ネジ
37b…第2雄ネジ
37c…平坦面
38…第1係止部
39…第2係止部
40…第1ホルダ
41…第2ホルダ
42…半円部
43…係止爪
43A…第1係止爪
43B…第2係止爪
44…ブラケット
45…支持壁
46…クランプ
47…ブラケット本体
48…切欠き
48a…保持孔部
49…ボルト
Claims (7)
- 第1係止受部を有するケーシングと、
前記ケーシングに連接され、内周面が雌ネジ型に形成されたステータと、
前記ステータに挿通可能であり、雄ネジ型の軸体からなるロータと、
第2係止受部を有し、前記ケーシングとは反対側で前記ステータに連接されるエンドスタッドと、
前記ステータを、前記ケーシングと前記エンドスタッドとの間に保持するホルダと、
を備え、
前記ホルダは、前記ケーシングの第1係止受部に係止される第1係止部と、前記エンドスタッドの第2係止受部に係止される第2係止部と、前記第1係止部と前記第2係止部との間隔を調整可能とする調整部と、を備えることを特徴とする一軸偏心ネジポンプ。 - 前記第1係止受部は、前記ケーシングに形成される第1鍔部であり、前記ステータとは反対側の面に第1溝を有し、
前記第1係止部は、少なくとも、前記第1溝に係止される第1係止爪を有することを特徴とする請求項1に記載の一軸偏心ネジポンプ。 - 前記第2係止受部は、前記エンドスタッドの一端側に形成される第2鍔部であり、前記ステータとは反対側の面に第2溝を有し、
前記第2係止部は、前記第2溝に係止される第2係止爪を有することを特徴とする請求項2に記載の一軸偏心ネジポンプ。 - 前記ステータを、その軸心が鉛直方向と合致するように配置し、前記ケーシングを前記ステータの上方側に配置したことを特徴とする請求項1から3のいずれかに記載の一軸偏心ネジポンプ。
- 前記ホルダを複数個備え、
前記第1係止部の係止爪は円弧状に形成され、
前記第1鍔部の溝部は、前記係止爪を係止可能な円形状に形成され、
前記各ホルダの係止爪が前記溝部に係止された状態で、隣接する係止爪同士が当接するようにしたことを特徴とする請求項2又は3に記載の一軸偏心ネジポンプ。 - 前記ホルダは2つであり、
前記係止爪は、180度の範囲にそれぞれ形成したことを特徴とする請求項5に記載の一軸偏心ネジポンプ。 - 前記ホルダの調整部は、両端側に形成されるネジ切り方向が逆に形成される雄ネジ部又は雌ネジ部と、中間部に形成される回転操作部と、を有することを特徴とする請求項1から6のいずれか1項に記載の一軸偏心ネジポンプ。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
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JP2015544916A JP6318454B2 (ja) | 2013-10-29 | 2014-10-16 | 一軸偏心ネジポンプ |
US15/033,078 US10125766B2 (en) | 2013-10-29 | 2014-10-16 | Uniaxial eccentric screw pump |
DE112014004925.5T DE112014004925T5 (de) | 2013-10-29 | 2014-10-16 | Einachsige Exzenterschneckenpumpe |
MYPI2016000747A MY186832A (en) | 2013-10-29 | 2014-10-16 | Uniaxial eccentric screw pump |
KR1020167014162A KR101864972B1 (ko) | 2013-10-29 | 2014-10-16 | 일축 편심 나사 펌프 |
CN201480058793.0A CN105683575B (zh) | 2013-10-29 | 2014-10-16 | 单轴偏心螺杆泵 |
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JP2013224415 | 2013-10-29 | ||
JP2013-224415 | 2013-10-29 |
Publications (1)
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WO2015064372A1 true WO2015064372A1 (ja) | 2015-05-07 |
Family
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PCT/JP2014/077565 WO2015064372A1 (ja) | 2013-10-29 | 2014-10-16 | 一軸偏心ネジポンプ |
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Country | Link |
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US (1) | US10125766B2 (ja) |
JP (1) | JP6318454B2 (ja) |
KR (1) | KR101864972B1 (ja) |
CN (1) | CN105683575B (ja) |
DE (1) | DE112014004925T5 (ja) |
MY (1) | MY186832A (ja) |
TW (1) | TWI617742B (ja) |
WO (1) | WO2015064372A1 (ja) |
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JP6374449B2 (ja) * | 2016-07-25 | 2018-08-15 | ファナック株式会社 | ステータおよび電動機 |
DE102016121582A1 (de) * | 2016-11-10 | 2018-05-17 | Seepex Gmbh | Exzenterschneckenpumpe |
JP6824537B1 (ja) * | 2019-09-24 | 2021-02-03 | 兵神装備株式会社 | 一軸偏心ねじポンプ |
KR20230027902A (ko) | 2021-08-20 | 2023-02-28 | 정평두 | 식품 토출 롤러 |
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CN201153693Y (zh) * | 2008-01-28 | 2008-11-26 | 孟宪超 | 桌面可调式学生阅览桌 |
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2014
- 2014-10-16 DE DE112014004925.5T patent/DE112014004925T5/de not_active Withdrawn
- 2014-10-16 CN CN201480058793.0A patent/CN105683575B/zh active Active
- 2014-10-16 US US15/033,078 patent/US10125766B2/en not_active Expired - Fee Related
- 2014-10-16 WO PCT/JP2014/077565 patent/WO2015064372A1/ja active Application Filing
- 2014-10-16 KR KR1020167014162A patent/KR101864972B1/ko active IP Right Grant
- 2014-10-16 JP JP2015544916A patent/JP6318454B2/ja active Active
- 2014-10-16 MY MYPI2016000747A patent/MY186832A/en unknown
- 2014-10-22 TW TW103136452A patent/TWI617742B/zh active
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DE112014004925T5 (de) | 2016-07-21 |
MY186832A (en) | 2021-08-24 |
TW201537032A (zh) | 2015-10-01 |
KR101864972B1 (ko) | 2018-06-05 |
KR20160078449A (ko) | 2016-07-04 |
CN105683575B (zh) | 2017-12-05 |
JPWO2015064372A1 (ja) | 2017-03-09 |
CN105683575A (zh) | 2016-06-15 |
US20160245285A1 (en) | 2016-08-25 |
JP6318454B2 (ja) | 2018-05-09 |
TWI617742B (zh) | 2018-03-11 |
US10125766B2 (en) | 2018-11-13 |
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