WO2016006043A1 - コイルばね固定構造及び二連往復動ポンプ - Google Patents

コイルばね固定構造及び二連往復動ポンプ Download PDF

Info

Publication number
WO2016006043A1
WO2016006043A1 PCT/JP2014/068222 JP2014068222W WO2016006043A1 WO 2016006043 A1 WO2016006043 A1 WO 2016006043A1 JP 2014068222 W JP2014068222 W JP 2014068222W WO 2016006043 A1 WO2016006043 A1 WO 2016006043A1
Authority
WO
WIPO (PCT)
Prior art keywords
retainer
coil spring
pair
retainer member
fixing structure
Prior art date
Application number
PCT/JP2014/068222
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
鬼塚　敏樹
大貴 稲岡
Original Assignee
株式会社イワキ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社イワキ filed Critical 株式会社イワキ
Priority to CN201480080434.5A priority Critical patent/CN106471272B/zh
Priority to PCT/JP2014/068222 priority patent/WO2016006043A1/ja
Priority to JP2016532824A priority patent/JP6253779B2/ja
Priority to KR1020177002154A priority patent/KR102162928B1/ko
Publication of WO2016006043A1 publication Critical patent/WO2016006043A1/ja

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/04—Wound springs
    • F16F1/12—Attachments or mountings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F04B43/06—Pumps having fluid drive
    • F04B43/073—Pumps having fluid drive the actuating fluid being controlled by at least one valve
    • F04B43/0733—Pumps having fluid drive the actuating fluid being controlled by at least one valve with fluid-actuated pump inlet or outlet valves; with two or more pumping chambers in series
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid

Definitions

  • the present invention relates to a retainer member coil spring fixing structure and a double reciprocating pump, in which a coil spring is mounted on an end of a rod-shaped shaft.
  • a pair of closed spaces are divided into a pump chamber and a working chamber by a movable partition member such as a bellows connected by a connecting shaft, and the connecting shaft is reciprocated by alternately introducing a working fluid into the pair of working chambers.
  • the compression process of one pump chamber and the compression process of the other pump chamber are partially based on the output of the displacement sensor that continuously detects the displacement of the pair of movable partition members.
  • the valve mechanism is switched to drive the pair of movable partition members so as to have overlapping distances.
  • the connecting shaft in the conventional double reciprocating pump disclosed in Patent Document 1 includes a coil spring as a telescopic member attached to the shaft.
  • a coil spring as a telescopic member attached to the shaft.
  • the present invention has been made in view of such a point, and even with a large-sized coil spring, a coil spring fixing structure capable of securely fixing a retainer member to an end portion thereof and mounting it on a shaft, and two An object is to provide a continuous reciprocating pump.
  • a coil spring fixing structure is a coil spring fixing structure of a retainer member in which a coil spring is attached to an end of a rod-shaped shaft, and the end of the coil spring is attached to the end of the shaft.
  • a retainer member to be mounted is provided, and the retainer member includes a first retainer having a fitting portion that fits inside an end portion of the coil spring, and a second retainer that fits inside the first retainer.
  • the fitting portion of the first retainer has a plurality of claw portions formed so as to spread outward when the tip outer peripheral portion of the second retainer abuts on the inside, and the first retainer includes the first retainer.
  • the retainer member is fixed to the end portion of the coil spring by the plurality of claws extending outward by the wedge action by fitting the retainer and pressing the inner side of the end portion of the coil spring. And wherein the Rukoto.
  • the first retainer includes the fitting portion formed in a cylindrical shape that fits inside the end portion of the coil spring, and the tip portion from the tip side of the fitting portion.
  • the plurality of claw portions formed so as to extend toward the base end side, a disk shape having a larger diameter than the fitting portion and abutting on the end portion of the coil spring, and a first screw portion on the inside
  • the second retainer has a second screw portion that is screwed into the first screw portion at a base outer peripheral portion, and the tip outer peripheral portion is the plurality of claws. It is formed in the cylindrical shape arrange
  • a double reciprocating pump includes a case member that internally forms a pair of spaces along the axial direction, and the pair of spaces disposed in the pair of spaces so as to extend and contract in the axial direction.
  • a pair of movable partition members that divide each of the spaces in the axial direction into a pump chamber and a working chamber, a connection shaft that connects the pair of movable partition members in an axial direction via a coil spring, and suction in the pump chamber
  • a suction valve provided on the side for guiding the transfer fluid to the pump chamber, a discharge valve provided on the discharge side of the pump chamber for discharging the transfer fluid from the pump chamber, and a working fluid introduced into the working chamber.
  • a valve mechanism for discharging the working fluid from the working chamber, and a double reciprocating pump for transferring the transfer fluid by expanding and contracting the pair of movable partition members Is provided with a pair of rod-shaped shafts, the coil spring mounted between the pair of shafts, and a retainer member mounted on the pair of shafts, each attached to an axial end of the coil spring,
  • the retainer member includes a first retainer having a fitting portion that fits inside an end portion of the coil spring, and a second retainer that fits inside the first retainer.
  • the second retainer has a plurality of claw portions formed so that the outer peripheral portion of the tip of the second retainer is in contact with the inner side and spreads outward, and the second retainer is fitted to the first retainer so that the second retainer is moved outward by a wedge action.
  • the retainer member is fixed to the end portion of the coil spring by pressing the inner side of the end portion of the coil spring with the plurality of claw portions that have spread.
  • another coil spring having a smaller diameter than the coil spring is disposed inside the coil spring and between the retainer members.
  • the retainer member can be securely fixed to the end portion and attached to the shaft.
  • FIG. 1 It is a figure which shows the structure of the double reciprocating pump which applied the coil spring fixing structure which concerns on one Embodiment of this invention. It is a fragmentary sectional view of the connection shaft in the pump. It is a fragmentary sectional view of the other connection shaft in the pump.
  • FIG. 1 is an exploded perspective view showing a retainer member applied to a coil spring fixing structure according to an embodiment of the present invention.
  • 2 and 3 are side views showing a part in cross section for explaining a method of fixing a coil spring by a retainer member.
  • the retainer member 30 applied to the coil spring fixing structure according to the present embodiment is made of a resin molded member such as polyphenylene sulfide (PPS).
  • the retainer member 30 is attached to each end of the coil spring 14. As shown in FIG. 1, the retainer member 30 includes a first retainer 31 attached to the end of the coil spring 14 and a second retainer 32 that fits inside the first retainer 31.
  • the first retainer 31 includes a cylindrical fitting portion 33 that fits inside the end portion of the coil spring 14, and a disk-shaped annular portion that has a larger diameter than the fitting portion 33 and contacts the end portion of the coil spring 14. Part 35.
  • the fitting part 33 and the annular part 35 are integrally formed.
  • the fitting portion 33 of the first retainer 31 has a claw portion formed such that a claw root portion 37b is located toward the tip end side of the fitting portion 33 and a toe portion 37a is located toward the annular portion 35 side. 37 are provided at equal intervals along the circumferential direction of the fitting portion 33.
  • the claw portions 37 have a tip end outer peripheral portion 34, which will be described later, abuts against a tapered surface 37d provided on the inside of the claw portion 37, whereby the toe portion 37a side spreads outward with respect to the claw root portion 37b. It is formed as follows.
  • a U-shaped slit 37c is formed around each claw portion 37.
  • the slit 37c communicates with a round hole 37e formed near the nail root portion 37b.
  • the round hole 37e is provided in order to disperse the concentration of stress applied to the nail root portion 37b when the nail portion 37 is displaced and to improve the mechanical strength of the nail portion 37.
  • a first screw portion 35 a is formed inside the annular portion 35.
  • the second retainer 32 is formed in a cylindrical shape in which a second screw portion 32a that engages with the first screw portion 35a of the first retainer 31 is formed on the outside.
  • a tapered outer peripheral portion 34 is formed on the distal end side of the second retainer 32.
  • the tip outer peripheral portion 34 abuts against the tapered surface 37d inside the toe portion 37a of each claw portion 37 in a wedge shape.
  • the second retainer 32 is coaxially disposed with respect to the fitting portion 33 and the annular portion 35 of the first retainer 31.
  • the retainer member 30 configured in this way is attached to the coil spring 14 as shown in FIGS. That is, as shown in FIG. 2, first, the first retainer 31 is attached to the coil spring 14 so that the fitting portion 33 is fitted inside the end portion of the coil spring 14 and the annular portion 35 is in contact with the end portion. Insert and place at the end.
  • the second retainer 32 is inserted inside the first retainer 31, and a jig or the like for rotational tightening is inserted into a pair of radially opposed grooves 32b formed on the rear end surface of the second retainer 32, The second retainer 32 is rotated little by little about the axial direction of the coil spring 14 so that the second screw portion 32a meshes with the first screw portion 35a, and the second retainer 32 is placed inside the first retainer 31. Screw together.
  • each claw part 37 formed in the fitting part 33 of the first retainer 31 abuts on the inner side of the end part of the coil spring 14, and the end part of the coil spring 14 is moved.
  • the second retainer 32 is fitted to the first retainer 31, and the retainer member 30 is attached to the end of the coil spring 14.
  • the coil spring 14 is mounted by mounting the retainer members 30 respectively attached to the ends of the coil spring 14 to a pair of rod-shaped shafts (not shown), for example.
  • the inner diameter tolerance that increases as the size of the coil spring 14 becomes larger than the conventional size.
  • the variation of the inner diameter generated in the coil spring 14 manufactured based on the above is sufficiently absorbed, and the retainer member 30 is securely attached to the end of the coil spring 14 while being centered with respect to the coil spring 14 and slidably mounted on the shaft. It becomes possible to do.
  • One of the retainer members 30 may be fixedly attached to the shaft.
  • FIG. 4 is an exploded perspective view showing a modified example of the retainer member.
  • the basic configuration is the same.
  • a retainer member having the following structure may be used. That is, as shown in FIG. 4A, the retainer member 30 ⁇ / b> A is the same as the retainer member 30 in that the retainer member 30 ⁇ / b> A includes the first retainer 31 and the second retainer 32, but is formed in the fitting portion 33 of the first retainer 31.
  • the difference is that the circumferential size of the plurality of claw portions 37 is reduced and the number is increased from four to eight. However, when the number of the claw portions 37 is four, the advantage is that the strength of the mold can be increased.
  • the retainer member 30B has a point that the round hole 37e in the vicinity of the claw root portion 37b of each claw portion 37 in the fitting portion 33 of the first retainer 31 of the retainer member 30A is omitted. This is different from the retainer member 30A. Even if the retainer members 30 ⁇ / b> A and 30 ⁇ / b> B configured as described above are used, the same operational effects as those of the fixing structure when the retainer member 30 is used can be obtained.
  • FIG. 5 is a perspective view showing a retainer member applied to another coil spring fixing structure.
  • FIG. 6 is a side view showing the retainer member.
  • FIG. 7 is a perspective view showing a retainer member applied to still another coil spring fixing structure.
  • FIG. 8 is a side view showing the retainer member.
  • the retainer member 50 is formed of a resin-molded member in the same manner as the retainer member 30 and the like.
  • the retainer member 50 is integrally formed into a cylindrical fitting portion 51 that fits inside the end portion of the coil spring 14 and a disk shape that contacts the end portion of the coil spring 14 and has a larger diameter than the fitting portion 51. And an annular portion 52.
  • the retainer member 50 includes a drop-off prevention stopper 53 that is formed on the outer peripheral surface of the fitting portion 51 and serves as a stopper portion that prevents the fitting portion 51 from dropping off from the end of the coil spring 14. 51 and an anti-rotation protrusion 54 as a displacement prevention part that prevents the displacement of the fitting position between the end of the coil spring 14 and the fitting part 51 formed at a predetermined position of the step part of the annular part 52. .
  • the stopper 53 for preventing the retainer member 50 from falling off is formed so as to make one round of the outer peripheral surface of the fitting portion 51 along the winding direction of the coil spring 14. Further, the rotation preventing projection 54 in the retainer member 50 is formed so as to contact the spring end 14 a in the winding direction at the end of the coil spring 14.
  • the retainer member 50 configured as described above is attached to the end of the coil spring 14 by being rotationally inserted into the end of the coil spring 14 with the axial direction as the rotation axis. Then, the retainer member 50 is detached from the coil spring 14 in the axial direction after the retainer member 50 is attached to the end portion of the coil spring 14 and the retainer member 50 after the retainer member 50 is attached to the end of the coil spring 14 by the above-described drop prevention stopper 53 and rotation prevention protrusion 54. Rotational movement with respect to the coil spring 14 is prevented.
  • the retainer member 60 is made of a resin-molded member, like the retainer member 50, and has a fitting portion 61 and an annular portion 62.
  • the retainer member 60 has a wall-shaped drop-off prevention stopper 63 formed along the circumferential direction on the outer peripheral surface on the distal end side of the fitting portion 61, and predetermined positions of the step portions of the fitting portion 61 and the annular portion 62. And an anti-rotation protrusion 64 formed on the surface.
  • the stopper 63 for preventing the retainer member 60 from falling off is formed so as to protrude in a direction intersecting the axial direction of the coil spring 14 and to make a substantially half circumference on the outer peripheral surface of the fitting portion 61. Further, the rotation preventing projection 64 of the retainer member 60 abuts on the spring end portion 14a in the same manner as the rotation preventing projection 54.
  • a plurality of slits 65 are formed. In the illustrated example, a total of three slits 65 are formed in the vicinity of both ends of the drop-off prevention stopper 63 and one in the vicinity of the rotation prevention protrusion 64.
  • the retainer member 60 configured as described above is attached to the end portion by being pressed and inserted into the end portion of the coil spring 14 along the axial direction.
  • the plurality of slits 65 are fitted to the portion where the stopper 63 for drop-off is formed in order to prevent the stopper 63 from coming off against the coil spring 14 from being difficult to insert when the retainer member 60 is inserted. It is provided to make the portion 61 easily bent inward. Also with the retainer member 60 having such a structure, it is possible to prevent axial disengagement and rotational movement from the coil spring 14.
  • FIG. 9 is a diagram showing a configuration of a double reciprocating pump to which the coil spring fixing structure according to one embodiment of the present invention is applied.
  • FIG. 10 is a partial cross-sectional view of a connection shaft in a double reciprocating pump
  • FIG. 11 is a partial cross-sectional view of another connection shaft in the pump.
  • the double reciprocating pump to which the coil spring fixing structure according to this embodiment is applied is a double cylinder type, and is configured as follows, for example.
  • a pair of bottomed cylindrical cylinders 2a and 2b which are case members, are coaxially disposed on both sides of the pump head 1 disposed in the center, and the inside of the pair of cylinders 2a and 2b.
  • a pair of spaces is formed.
  • a pair of bellows 3a and 3b each having a bottomed cylindrical shape are coaxially arranged.
  • the open ends of the bellows 3a, 3b are fixed to the pump head 1, and the shaft fixing plates 4a, 4b are fixed to the bottoms thereof.
  • the bellows 3a and 3b are made of, for example, fluororesin, and constitute movable partition members that partition the internal spaces of the cylinders 2a and 2b with the insides being pump chambers 5a and 5b and the outside being working chambers 6a and 6b.
  • the bellows 3a and 3b are provided with, for example, a crest 28a and a trough 28b that are alternately formed along the axial direction.
  • a ring portion 29 is provided.
  • the number of the ring portions 29 can be arbitrarily configured.
  • the bellows 3a, 3b are configured by the number of peak portions 28a and valley portions 28b that have the same shape, the same thickness, and the same operating resistance as those of a normal bellows without the ring portion 29.
  • the bellows 3a, 3b having such a structure is superior in temperature characteristics to the bellows without the ring portion 29, and can improve the pressure resistance performance without reducing the operation efficiency.
  • the shaft fixing plates 4a and 4b are fixed with one end of shafts 7a and 7b extending coaxially.
  • the other ends of the shafts 7a and 7b extend through the center of the bottoms of the cylinders 2a and 2b through the seal member 8 to the outside of the cylinders 2a and 2b.
  • Connecting plates 9a and 9b are fixed to the other ends of the shafts 7a and 7b by nuts 10, respectively.
  • the connecting plates 9a and 9b are connected by connecting shafts 11a and 11b at the upper and lower positions of the cylinders 2a and 2b in the drawing.
  • each of the connecting shafts 11 a and 11 b has rod-shaped shafts 12 and 13, a coil spring 14 mounted between the shafts 12 and 13, and an axial end of the coil spring 14.
  • the retainer member 30 is mounted and attached to the metal sleeve 40 of each of the shafts 12 and 13.
  • FIG. 10 only the connecting shaft 11 is shown, but the same configuration can be adopted for the connecting shaft 11b.
  • the connecting shafts 11 a and 11 b are fitted and fixed in, for example, a recess 13 a at the end of the shaft 13, and an opening 12 b at the end of the shaft 12 in the space 12 a formed inside the shaft 12.
  • a rod-like slide shaft 39 disposed so as to be capable of moving forward and backward in the axial direction via a bearing portion 38 attached inside.
  • the bearing portion 38 is composed of, for example, a linear ball bearing.
  • a metal sleeve 40 having a convex cross section made of a metal material such as stainless steel attached and fixed by a bolt 41 is disposed. At least one bolt 41 in the shaft 12 fixes the bearing portion 38 together with the metal sleeve 40.
  • the retainer member 30 is attached to the ends of the shafts 12 and 13 through the metal sleeve 40.
  • the coil spring 14 is centered by the retainer member 30 and is slidably mounted on the shafts 12 and 13 via the metal sleeve 40.
  • Each connecting shaft 11a, 11b is fixed to the connecting plates 9a, 9b by bolts 15.
  • the pump head 1 of the double reciprocating pump is provided with a suction port 16 and a discharge port 17 for the transfer fluid at a position facing the side surface of the pump. Further, the pump head 1 is provided with suction valves 18a and 18b at positions from the suction port 16 to the pump chambers 5a and 5b, and discharge valves 19a and 19b are provided at a path from the pump chambers 5a and 5b to the discharge port 17. It has been.
  • Proximity switches 21a and 21b are attached to the bottom outer wall surfaces of the cylinders 2a and 2b.
  • the proximity switches 21a and 21b are for detecting that the bottoms of the bellows 3a and 3b are most retracted.
  • the proximity switches 21a and 21b detect that the inner side surfaces of the connecting plates 9a and 9b are close to each other.
  • Displacement sensors 23a and 23b are mounted on the fixing plates 22a and 22b extending from the cylinders 2a and 2b.
  • the displacement sensors 23a and 23b detect displacement with respect to the outer surfaces of the connecting plates 9a and 9b.
  • a laser displacement meter an MR (magnetoresistive element) sensor, a capacitance sensor, a linear encoder, a high-frequency oscillation type proximity displacement A sensor, an optical fiber type displacement sensor, or the like can be suitably used.
  • Detection signals from the proximity switches 21a and 21b and the displacement sensors 23a and 23b are input to a controller 25 that controls the double reciprocating pump.
  • air working fluid
  • an air source working fluid source
  • an air compressor not shown
  • the regulators 26a and 26b are not limited to two, and may be configured by one. In this case, a precision regulator can be used.
  • the solenoid valve 27a is in an off state (exhaust state)
  • the solenoid valve 27b is in an on state (air introduction state)
  • the pump chamber 5a is in an expansion process
  • the pump chamber 5b is in a contraction process.
  • the controller 25 monitors the output of the displacement sensor 23b, and when the magnitude of the output of the displacement sensor 23b falls below a predetermined threshold value THR, for example, the electromagnetic valve 27a is turned on to introduce air into the working chamber 6a. . Thereby, the pump chamber 5a is switched from the expansion process to the compression process.
  • the pump chamber 5b since the air is continuously supplied to the other working chamber 6b, the pump chamber 5b also maintains the compression process. Accordingly, the suction valves 18a and 18b are closed, the discharge valves 19a and 19b are opened, and liquid is discharged from both the pump chambers 5a and 5b.
  • the coil springs 14 of the connecting shafts 11a and 11b are compressed to absorb the dimensional change between the both ends of the bellows 3a and 3b.
  • the solenoid valve 27b When the proximity switch 21b detects the stroke end, the solenoid valve 27b is switched to air exhaust. And since the bellows 3b is pulled by connection shaft 11a, 11b and starts expansion
  • the double reciprocating pump configured as described above, since the above-described coil spring fixing structure is applied, the movement of the connecting shafts 11a and 11b can be smoothly followed even in a wide range of pulsation pressures.
  • each of the connecting shafts 11 a and 11 b may have the following configuration. As shown in FIG. 11, each of the connecting shafts 11 a and 11 b has a double spring configuration in which an auxiliary coil spring 70 and an auxiliary retainer 71 are provided between the shafts 12 and 13 and between the retainer members 30 inside the coil spring 14. Yes.
  • the auxiliary coil spring 70 has a smaller diameter than the coil spring 14 and is disposed between the coil spring 14 and the slide shaft 39.
  • the auxiliary retainer 71 includes an insertion portion 72 that is inserted into the end portion of the auxiliary coil spring 70 and a disk portion 73 that contacts the end portion of the auxiliary coil spring 70.
  • Each of the auxiliary retainers 71 is attached to the end of the auxiliary coil spring 70 by, for example, press fitting.
  • the back surface side of the disk portion 73 of the auxiliary retainer 71 is supported in a state where at least one of the auxiliary retainer 71 can contact and be separated from the distal end surface of the metal sleeve 40. If such double spring type coupling shafts 11a and 11b are employed, the movement of the coupling shafts 11a and 11b can be smoothly followed even in a wider range of pulsation pressures.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Springs (AREA)
  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
PCT/JP2014/068222 2014-07-08 2014-07-08 コイルばね固定構造及び二連往復動ポンプ WO2016006043A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201480080434.5A CN106471272B (zh) 2014-07-08 2014-07-08 螺旋弹簧固定结构以及双缸往复式泵
PCT/JP2014/068222 WO2016006043A1 (ja) 2014-07-08 2014-07-08 コイルばね固定構造及び二連往復動ポンプ
JP2016532824A JP6253779B2 (ja) 2014-07-08 2014-07-08 コイルばね固定構造及び二連往復動ポンプ
KR1020177002154A KR102162928B1 (ko) 2014-07-08 2014-07-08 코일 스프링 고정 구조 및 2연 왕복동 펌프

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2014/068222 WO2016006043A1 (ja) 2014-07-08 2014-07-08 コイルばね固定構造及び二連往復動ポンプ

Publications (1)

Publication Number Publication Date
WO2016006043A1 true WO2016006043A1 (ja) 2016-01-14

Family

ID=55063719

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2014/068222 WO2016006043A1 (ja) 2014-07-08 2014-07-08 コイルばね固定構造及び二連往復動ポンプ

Country Status (4)

Country Link
JP (1) JP6253779B2 (zh)
KR (1) KR102162928B1 (zh)
CN (1) CN106471272B (zh)
WO (1) WO2016006043A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12018672B2 (en) 2020-04-02 2024-06-25 Idex Health And Science Llc Precision volumetric pump with a bellows hermetic seal

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20240003205A (ko) 2022-06-30 2024-01-08 윤형중 놀이 시설물용 스프링 고정장치

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59191439U (ja) * 1983-06-07 1984-12-19 中央発條株式会社 座板付圧縮コイルばね
JPS6124550U (ja) * 1984-07-20 1986-02-13 加藤発条株式会社 形状記憶合金製ばねのフツク構造
JP2005024002A (ja) * 2003-07-02 2005-01-27 Piolax Inc ばね組立体の製造方法
JP2007292271A (ja) * 2006-04-27 2007-11-08 Togo Seisakusho Corp ばねシート部材及びばね組立て体
WO2010143469A1 (ja) * 2009-06-10 2010-12-16 株式会社イワキ 二連往復動ポンプ

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3673390B2 (ja) 1998-02-02 2005-07-20 ファナック株式会社 バネバランサ構造
DE19943629B4 (de) * 1999-09-11 2015-04-09 Andreas Stihl Ag & Co. Handgeführtes Arbeitsgerät
JP3838577B1 (ja) * 2006-01-18 2006-10-25 株式会社パイプシステム新潟 パイプの空中架設構造及び空中架設方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59191439U (ja) * 1983-06-07 1984-12-19 中央発條株式会社 座板付圧縮コイルばね
JPS6124550U (ja) * 1984-07-20 1986-02-13 加藤発条株式会社 形状記憶合金製ばねのフツク構造
JP2005024002A (ja) * 2003-07-02 2005-01-27 Piolax Inc ばね組立体の製造方法
JP2007292271A (ja) * 2006-04-27 2007-11-08 Togo Seisakusho Corp ばねシート部材及びばね組立て体
WO2010143469A1 (ja) * 2009-06-10 2010-12-16 株式会社イワキ 二連往復動ポンプ

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12018672B2 (en) 2020-04-02 2024-06-25 Idex Health And Science Llc Precision volumetric pump with a bellows hermetic seal

Also Published As

Publication number Publication date
KR102162928B1 (ko) 2020-10-07
CN106471272B (zh) 2019-06-18
JP6253779B2 (ja) 2017-12-27
CN106471272A (zh) 2017-03-01
JPWO2016006043A1 (ja) 2017-04-27
KR20170030539A (ko) 2017-03-17

Similar Documents

Publication Publication Date Title
TWI513894B (zh) 雙聯式往復泵
JP5720888B2 (ja) ベローズポンプ
JP4324568B2 (ja) ベローズポンプ
JP6221951B2 (ja) 配管接続構造
JP6046856B1 (ja) 容積ポンプ
EP3237747A1 (en) Pump unit for feeding fuel, preferably diesel fuel, to an internal combustion engine
JP6253779B2 (ja) コイルばね固定構造及び二連往復動ポンプ
KR20140034070A (ko) 벨로우즈 펌프
US9605758B2 (en) Stroke piston for a stroke piston compressor
EP2378136B1 (en) Fluid pressure cylinder
US11009139B2 (en) Relief valve
JPWO2019188129A1 (ja) エアシリンダ
KR20040050707A (ko) 펌프
JP6534803B2 (ja) 流体制御弁
TWI606182B (zh) Helical spring fixed structure and double-type reciprocating pump
JP2010043592A (ja) 可変容量型ピストンポンプ
JP6731389B2 (ja) 往復動ピストンポンプ及びピストンパッキンの製造方法
JP6423496B1 (ja) ダイアフラムポンプ
JP6609488B2 (ja) ベローズポンプ
EP3308032B1 (en) Fluid pressure cylinder
JP2007009971A (ja) ピストンリング
EP2796727B1 (en) Dew condensation preventing valve
CN219529838U (zh) 一种控制阀
JP2004183563A (ja) ポンプ
JP2021169793A (ja) ベローズポンプ

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14897073

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2016532824

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 20177002154

Country of ref document: KR

Kind code of ref document: A

122 Ep: pct application non-entry in european phase

Ref document number: 14897073

Country of ref document: EP

Kind code of ref document: A1